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April 2013

New York Weather History: April (1970 - 2021)

Clipart_aprilshowerHighlights:  The blizzard of April 6, 1982 dumped nearly 10 inches of snow; four inches of snow fell on April 4, 2003 and 5.5" on April 2, 2018; a nor'easter on April 13-14, 2007 flooded the City with more than eight inches of rain; three consecutive 90-degree days occurred in mid-April 2002, including one 96° reading; other 90-degree weather has occurred in 1990, 1991, 2009 and 2010. April 2014 ended with a five-inch rainstorm, one of NYC's biggest rainstorms on record.

 

April 1

April 2

April 3

April 4

April 5

April 6

April 7

April 8

April 9

April 10

April 11

April 12

April 13

April 14

April 15

April 16

April 17

April 18

April 19

April 20

April 21

April 22

April 23

April 24

April 25

April 26

April 27

April 28

April 29

April 30

 

 

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Looking Back at New York Weather: April 30

 

1874

The last three days of the month all had lows of 32° or colder, joining eight other days with lows this cold.  No other April has had this many days with lows of freezing or colder; these days contributed to this being the coldest April of all time.  (The following April and April 1943 would have nine such days, the second most.)

1925

Rainy (0.55" was measured) and very cool, with a high/low of 45°/42°.  The high was a record for the coolest maximum temperature on this date.

1940

Today's high of 67°, just a few degrees above average, was the mildest reading of the month.  (The warmest high temperature in April in the years before then was typically in the 78° to 82° range.)  In the years since 1900 this was the only April with no readings of 70° or warmer - until 2020.

 

No70

1942

Today's high of 91°, a record for the date, followed a high of 72° yesterday and 53° the day before that.  The previous record for the date, 86°, was set just last year.  In both years, the humidity was quite low during the afternoon, at around 25%.

1962

After three days of summer-like warmth (highs of 91°-89°-80°), this afternoon was raw and showery with temperatures only in the upper-40s.

1963

Up until today, just 0.39" of rain had fallen this month, and it appeared it would become the driest April on record.  However, an all-day rain brought 0.89", and the month ended up tied for third driest April.  Until 2014, today's rainfall was a record for the date, which was the second smallest amount for a daily record (Sept. 9's daily record is 0.86", which was established back in 1902).

1990

Today's high of 56° (ten degrees below average) was quite a drop from 73° yesterday and 90° two days ago.

2012

The final nine days of April all had chillier than average temperatures - the longest such streak since the end of March last year.  But despite these below average conditions, the month was the unprecedented thirteenth in a row with above average temperatures. 

132013

With a high/low of 68°/51°, today's mean temperature was two degrees above average, just enough to move the month's mean temperature from 0.1 degree below average to right at the average.  Thus, it joined August 1999 and August 1985 as the only months since 1980 to have a mean temperature on par with the monthly average.  April's high was 0.1 above average; the low was 0.1 below average.  However, what was far from average was the month's precipitation, which amounted to just 1.31".  This was 71% below the norm of 4.51", making it the fifth driest April on record (and the driest in 50 years).

2014

Until this year, April 30 was one of three dates that had never seen an inch of rain.  That distinction ended today as nearly five inches flooded the area, with more than half of it falling after 6 PM.  The 4.97" that fell was the ninth greatest daily rainfall on record.  Besides the rain it was also a very raw day, with temperatures only in the 40s.

 

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2019

Today was the eighteenth day this month with measurable precipitation, the most of any month since May 2012, and the most on record of any April (the most of any month is nineteen days, in Dec. 1972 and May 1973).  However, despite this high frequency of rainy days, the amount of rain that fell in April, 4.55", was just an average amount.  (Seven days had 0.03" or less.)  By contrast, New York's ten rainiest Aprils averaged 12 days of precipitation (ranging from nine to fifteen).  

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Today in New York Weather History: April 27

 

1915

Two days after the temperature soared into the 90s, it did so again today.  But after reaching 92° shortly before 4:30 (one degree hotter than 4/25), a cold front moved through a few hours later and the temperature dropped to 54° by midnight (similar to what happened two days ago.) 

 

92degrees  

1962

In a span of 13 hours the temperature soared from 51° at 1 AM to 91° by 2 PM.

1990

Just like 1962, the day's temperature soared from 51° to 91°.  This was the earliest date for a year's first 90-degree reading since 1977 (when it occurred on 4/12).

 

Replicated
1994

0.41" of rain fell during a twenty-minute thunderstorm later in the afternoon (4:27-4:47 PM).  After a cool start (low of 50°), it turned into a warm day as the high reached 82°.

 

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2007

2.07" of rain, a record for the date, brought April's rainfall total to 13.05".  This was a morning rainfall, with a little more than half of the amount pouring down between 3:00 and 5:00 AM.

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Looking Back at New York City Weather: April 26

 

1984

Today's high reached 73°, the first 70-degree reading of the year.  This was four weeks later than average and the latest since 1956, when it occurred on 4/28.  No year since has had a later date (thru 2021).

 

70temp

2009

Today's high reached 92°, a record for the date, and twenty-seven degrees above average.  It came just three days after a chilly high of 57°.  This was the second day of a four-day springtime heat wave that saw high temperatures of 88°-92°-84°-90°.  (The typical high in late April is in the mid-60s.)  It would be nearly four months before it got this hot again. 

 

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Today in New York Weather History: April 25

 

1875

Less than two weeks after a snowstorm of ten inches (on 4/13), another significant snowfall dropped three more inches - despite the fact that the temperature got no lower than 34°.  This is the latest measurable snowfall on record.

1915

Today saw perhaps the greatest swings in temperature of any date in New York's history.  After first steadily climbing from 47° shortly after midnight to 91° at 3:00 PM, the temperature then plunged to 52° just before  midnight.  This was the result of a strong warm front moving through for about ten hours (9 AM-7 PM) and then being displaced by a backdoor cold front.  There was no rain produced by the passage of either front.  Two days later the temperature would rebound into the low 90s again, only to drop like a rock after nightfall.  These crazy swings came three weeks after 10.5" of snow buried the City.

Up-down-financial-chart-illustration-20507051 

1919

It was a cold day, with temperatures more like winter than the middle of spring.  The high/low was just 43°/29°, nineteen degrees below average.  And tomorrow's readings were very similar (44°/31°).  Both days also had winds that gusted to 25 mph, making it feel like it was in the 30s.

1960

After a seasonably cool low of 48°, the temperature rose sharply, to 87°.  Meanwhile, although they were still milder than average, yesterday and tomorrow had highs of 70°.

1962

For the third year in a row, a big jump in temperature occurred on this date.  This year the mercury jumped from 48° to 84°; in 1961 it rose from 49° to 82°; and in 1960 the high reached 87° after a low of 48°. 

1976

Five days after an unprecedented four-day heat wave ended (with highs of 91°-96°-92°-89°), today was the first of three days in a row with highs only in the 40s (49°-46°-49°).  

2002

A steady rain, amounting to 0.55", fell during the afternoon - the first rain on this date in 12 years.  One week after a heat wave, with temperatures 30 degrees above average (comparable to hot temperatures experienced in 1976), today was chilly, with a high/low of 52°/43°.

 

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2007

For the sixth year in a row rain fell on this date as mid-afternoon showers amounted to 0.14".

2009

What a spectacular start to my summer share at Fire Island as the afternoon high soared to 88° (in NYC) after a low of 52°.

 

Clipart_sun_at_beach

2010

After just 0.61" of rain fell in the first twenty-four days of the month, 1.60" poured down today.  The rain came from two storm systems.  The first brought the bulk of the rain in the AM hours (1.13"), the second moved in after dark.

2018

It was a dreary, showery, fog-shrouded day.  The 0.95" that fell (much of it between 6-9 AM, and then just before midnight) pushed April's total precipitation past the five-inch mark, the third month in a row with five inches or more.  The last time this happened was Aug.-Oct 2011, but that three-month period had more than twice as much precipitation (34.43" vs. 16.45").

 

Chart - 3 rainy months in a row

 

 

 

 

 


 

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Today in New York Weather History: April 24

 

1883

0.5" of snow accumulated, the second latest date on record, following 4/25 in 1875 (when three inches fell).  Despite the snow, the temperature got no lower than 34° (similar to 4/25/75). 

1930

This was the second cold day in a row, with temperatures that were more typical of the first week of March.  Today's high/low of 44°/31° followed yesterday's 42°/32°.  Both morning lows were records (which still stand).  These were the coldest days of the month.

Clip art frosty breath

1998

The 0.03" of rain that fell today, following yesterday's 0.82", duplicated the rainfall of 4/19 (0.82") and 4/20 (0.03").

2001

After soaring to 87° in the early afternoon (the warmest reading of the month), a cold front moved through, and by midnight the temperature had fallen to 52°.  The colder air was made even chiller by winds gusting between 30-40 mph.  This was the third day in a row with 80-degree temperatures, and today's high was the warmest in more than eight months (since Aug. 9).  It was also the warmest reading in April in ten years.

 

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2011

With a high of 80° (sixteen degrees above average), this was the warmest Easter Sunday since 1976 (when the high was a sizzling 96!).  However, showers between 6-9 PM put somewhat of a damper on the day.  The 0.50" of rain that fell was the most on Easter Sunday since 1996.   

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Today in New York Weather History: April 23

 

1952

This was the sixth day in a row with a high of 74° or warmer.  The average high during this streak was 78°, which was 15 degrees above average.

1977

This was the 18th day in a row with no measurable rain.  This followed a rainy four-day period (4/2-5) in which nearly three inches fell. 

Clipart_drought2

1979

Today's high reached 81° under clear skies, the first 80-degree day of the year (a day later than the typical date for the first 80).  

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Today in New York Weather History: April 22

 

1875

This was the sixth day in a row with a low in the 20s.  This helped this April become the second coldest on record (behind April of last year).

1925

For the second day in a row the low was 32° (average is mid-40s); today's low was a record which still stands.

1927

Beginning today, two days after the mercury reached 90°, the rest of the month had chilly highs that ranged between 52° and 61°.

1954

This was the third day in a row with identical, beautiful conditions - clear skies with a high of 78° every day (compared to an average high in the lower-60s).

1964

Conditions were hardly ideal for the opening day of the 1964 World's Fair in Flushing Meadows, as it was chilly, with a high/low of 47°/41° (11 degrees below average).  And there were morning and evening showers that amounted to 0.15".

1970

The nation's first observance of Earth Day had pleasant temperatures as the high topped out at 67°, four degrees above average.  It was breezy, and skies were a mix of sun and clouds.

 

Earthday1970 

1973

With a high of 86°, today tied 1962 as New York's warmest Easter Sunday - which, coincidentally, also fell on 4/22.  (Easter 1976 would top these two by ten degrees, and Easter 2017's high reached 87°.)

2000

This was the third day in a row of nearly identical, chilly highs and lows: 49°/44°, 50°/44° and 49°/44° (today).

2001

Today was the first of 26 days in a row with no measurable rain in Central Park, the second longest stretch of rain-free days in the 1980-2020 period.  (The longest dry streak in this period was 35 days in 1999.)

 

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2006

My summer share at Fire Island began this weekend but I didn't go out because a lot of rain fell over the course of two days - 1.23" today (Saturday) and 2.34" tomorrow.  This was the most rain from one storm in six months.  It was also very chilly, as the high was only 47°, sixteen degrees below average.  This was the second year in a row in which opening weekend was a washout.

2012

A steady light rain during the daytime hours turned heavy after dark and was whipped around by gale force winds as a powerful nor'easter made itself known.  The brunt of the storm was felt from 8:00-midnigh, then conditions greatly improved by 2:00 AM.  The 2.89" of rain that was measured in Central Park was greater than the paltry rainfall of the previous nine weeks.  Of the storm's total, 2.45" fell today - a record for the date.

 

Broken_umbrella

2016

After experiencing afternoon humidity around 15% the previous five days, today felt oppressive by comparison as the humidity jumped to 50% as a frontal system that produced showers after midnight approached.  It was also very mild, with a high/low of 79°/62°, sixteen degrees warmer than average.

2018

On a mostly clear day, with afternoon temperatures in the mid-to-upper 60s, the humidity dropped to 13% for a few hours in mid-afternoon.  This was the lowest humidity level in New York since March of last year, when it fell to 12% on 3/5.  Typical afternoon humidity in April (on a day without rain) is around 45%.  

 

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A Glance Back at New York City Weather: April 21

 

First 80

 

Since 1980, the average date of the first reading of 80° or warmer is April 21 (a month later than the average date of the first reading of 70°+).  This is about a week earlier than 1900-1979, and two weeks earlier than the 1869-1899 period.  It's happened as early as March 13 (in 1990) and as late as June 7 (in 1924). 

 

1877

Lows of the past six days exhibited the following pattern: 40°-42°-41° and 40°-42°-41°.

1926

The day after winter's last below-freezing low (28°), the high jumped to a balmy 75° (and tomorrow's high would rise to 82°).

1957

This was the first Easter Sunday since 1871 to have a high in the 80s, and at 85° it was the warmest on record (until 1962).  By contrast, yesterday's high was in the mid-60s, as would be tomorrow's.

1976

This was the 19th day in a row with no measurable precipitation, the longest stretch of dry weather since one of 26 days in October 1973. 

1981

A late cold snap saw the morning low tumble to 33°, a year after a low of 32° was reported on 4/17.  (By contrast, the warmest temperature this month, 81°, came at the beginning of April.)  This morning's frosty low was the coldest reading since March 21.

 

Jack_frost

1987

For the third day in a row temperatures were well above average, and very similar: 77°/57° today, 75°/57° yesterday, and 76°/57° two days ago. 

1991

A steady, cold rain, sometimes on the heavy side, fell throughout the day, amounting to 2.28" - a record for the date.  The high was only 46°, seventeen degrees below average.

2000

My flight to Pittsburgh, for an Easter visit to see my mother, was delayed six hours due to inclement weather in the Mid-Atlantic states.  1.62" of rain fell, with more than half of it coming down between noon-3 PM.  It was also chilly, as the high got up to just 49°, fourteen degrees below average. 

 

Easter_eggs2

2007

Today's high of 79°, sixteen degrees above average, came after a seasonable low of 45°.

2012

Under sunny skies, today's high reached 71°, the last day this month to be in the 70s.  April had seven 70-degree days in total, one fewer than the exceptionally mild March.

 

Clipart_sun

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Today in New York Weather History: April 20

 

1896

This was the last day of a seven-day streak with very mild temperatures, with an average high/low of 81°/61°.  This followed a six-day stretch ending 4/8 that experienced a cold average high/low of 41°/29°.

1927

The day after the a pleasant high of 64°, today's high was a summer-like 90°, nearly 30 degrees above average, and a record for the date (which still stands).  At the time, it was the second earliest date for a 90-degree reading (the temperature reached 90° on April 18, 1896).  After today it would be seven weeks before the next 80-degree reading was reached; and the next 90-degree high wouldn't be until July 13.

 

Broiling sun

1972

The temperature at 4:00 PM was a quite chilly 43°, a drop of forty-three degrees from yesterday afternoon's 4 PM reading of 86°.

1990

Although showers that fell between 11 PM and midnight amounted to just 0.02", it was the first measurable precipitation to fall on this date since 1978.

2005

Today's high and low of 87°/64° was 22 degrees above average, making this the warmest day of the month.  It would be seven weeks before a hotter temperature was reached (93° on June 8). 

 

Clipart_smilingsun

2006

Today's high of 83° was the warmest reading of the month (and came five days after the year's first 80-degree reading), but what was even more notable was the afternoon's bone dry humidity, which fell to 10% at 4:00 PM.  Air this dry in NYC is rare.  (Typical late afternoon humidity in April is around 45%.)

2009

Rain during the PM hours amounted to 1.79", with 0.87" falling between 8:19-10:19 PM.  More precipitation fell today than in the entire month of March (1.75").  Temperatures were on the chilly side, with a high/low of 50°/42°, eight degrees below average. 

 

Morning_rainstorm

2015

Dreary, windy and damp, with rain thru early afternoon that amounted to 1.37".  This was comparable to the amount that fell in the previous 30 days (and it was the biggest rainstorm in three months).  After the wind subsided, fog rolled in during the afternoon.  Today's rainfall accounted for nearly two-thirds of April's total precipitation (2.08").

2016

Today was the seventh day in a row with clear skies and unusually dry conditions, with relative humidity below 20% during the afternoon and early evening (normal is in the 45% to 50% range).  And today saw the lowest humidity level of all the days, as it bottomed out at 9% at 6:00 PM - very similar to ten years earlier on this date. 

 

Dust

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