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Looking Back at New York's Weather: July 16
Today in New York Weather History: July 18

Today in New York Weather History: July 17

 

1968

After a torrid high/low of 97°/75° yesterday, today's high/low of 98°/78° made this the hottest day of the summer.  Not only was today hotter than yesterday, it was also hotter than July 1's scorching 97°/77°.

 

Torrid

1969

An evening thundershower that dropped 0.11" of rain was the first measurable rain on this date since 1952.  Also, with a high/low of 96°/76°, this was the hottest day of the year, based on mean daily temperature.  (Although 5/29 had a high of 97°, its low was two degrees milder than today.)

1983

For the fifth year in a row the temperature rose into the 90s on this date.  This joined another five-year streak from 1936-1940 on July 10 (and later joined joined by streaks in 1990-1994 on July 9 and on July 7 from 2000-2014). 

1988

After a steamy afternoon high of 94°, an inch of rain poured down in a 60-minute period during an early evening thunderstorm between 6:40-7:40 PM.

1995

A torrential rainstorm dumped 3.36" of rain tonight between 10PM-1AM.  Incredibly, 2.09" fell in just one hour (10:19-11:19 PM).  On this night I was attending a performance of Macbeth when the skies opened up shortly after intermission.  Soon, the rain was falling so heavily that it began dripping onto the stage!  When the play was over many of us hesitated going out into the deluge, but theater management wouldn't let us linger.  This was the biggest 24-hour rainstorm since 3.20" fell on Aug. 16-17, 1993.

 

Clipart_torrents_of_rain

1996

Today's low of 74° was the warmest low temperature of the year, tying a few dates in 1976 for the distinction as the "coolest" warmest summertime low in the 1970-2021 period.  Another low of 74° would occur on Sept. 10.

1999

The high temperature soared to 98°, and was one of nine days this month with a high of 97° or hotter.

2001

0.50" of rain fell in an hour between 6-7 PM.  This was the biggest rainstorm of the month.

2006

Today's high was 95° after a low of 77°.  The mean temperature of 86° was the warmest of the month.

2009

The afternoon high of 86° was the warmest reading of the month, the coolest July maximum temperature on record.

2018

A cold front moving into hot and very humid air triggered severe thunderstorms across the metro area in the middle of the afternoon (and a funnel cloud formed over New York Harbor).  In Manhattan, nearly two inches of rain fell between 2:30 and 3:30, which exceeded the 1.95" of rain that fell during the first sixteen days of the month.  Before the storm struck, the temperature had risen into the upper 80s and the heat index reached 100°.  For the entirety of the storm, 2.22" was measured in Central Park, which was three times as much as what Kennedy Airport had, twice as much as Newark received and 40% more than what fell in the rain gauge at LaGuardia.  In the past six days nearly four inches of rain fell.

 

July 17 thunderstorm
 

2019

A severe thunderstorm between 8-9 PM dumped more rain (1.14") than what fell in the previous three weeks (0.99").  Earlier in the day, sauna-like conditions prevailed as the dew point reached the mid-70s, the temperature rose to 93° and the heat index reached 105°.  It also appeared today would be one of those rare summer days with a low of 80°+, but when tonight's storm moved in the temperature dropped to 73°.  Rain continued after the initial storm, adding 0.68", making this the wettest day of the year.  This moisture was from the remnants of what was hurricane Barry, which flooded Louisiana earlier in the week.  This was the second tropical storm named Barry to drench NYC; the first was in June 2007, when nearly four inches of rain fell.    

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Comments

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William

the July 2001 monthly recap shows its biggest rainstorm was 0.62", not 0.50".

William

2009 joins 1996 as the only two years on record to have both June and July report no 90° days.

William

2018's rain was the wettest July day since 2007 (when 2.31" fell on July 23) and the tenth wettest July day since 1970.

Rob

Regarding the comment about the rainstorm on this date in 2001, although 0.62" fell during the entire day this amount was from three separate showers: one before daybreak, one in the afternoon (which produced the 0.50" I mentioned) and one that occurred an hour or so before midnight. My observation was about an individual rainstorm and not the day's total rainfall.

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