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2020's Weather Highlights
February 2020 Weather Recap - Mild & Snow-Free

January 2020 Weather Recap: Mild, Dry, Largely Uneventful

Mild

 

January 2020 was the 11th mildest January on record (6.4 degrees above average).  Only six days had below average temperatures; just one had a high of 32° or colder, joining 10 other years with either no such days or one.  The month's highlight was the May-like temperatures during the second weekend of the month when record-setting highs of 69° and 68° were reached.  The coldest reading was 20°, which happened on three days (January's coldest temperature is typically around 9°).  Looking at precipitation, this was the driest January since 2002, with a little less than two inches measured (half the typical amount).  As for snowfall, only 2.3" was measured (but double last January's total).  

 

A typical January is five degrees colder than December, but January 2020 was 0.8 degrees warmer - the 31st time January has been milder than December; the previous time it happened was during the winter of 2006.  Besides being slightly milder than December, its snowfall was a touch less as well (2.3" vs. 2.5").  Although the month had a minimal amount of snow, there have been 36 Januarys with smaller amounts.  

 

Three consecutive Saturdays had very different conditions:  Saturday, Jan. 11 had the mildest reading of the month (69°); Saturday, Jan. 18 had the biggest snowfall (2.1"); and Saturday, Jan. 25 had the biggest rainfall (0.85").

 

Mild weekend in january
Basking in the springlike temperatures of Jan. 11
 
Record mild weekend january 2020
Temperature map during the very mild weekend of Jan. 11-12

 

The month began with a continuation of a streak of above-average temperatures that began on Dec. 22 and continued thru Jan. 8.  This 18-day streak equaled the longest above-average streak of 2018-19, which happened at roughly the same time of the year (12/20-1/6).  Then, after one day with below average temperatures, there were seven more consecutive days with above average temperatures.  The entire 26-day period from 12/22 thru 1/15 was ten degrees above average.

 

A streak of six days in a row with mean temperatures ten degrees or more above average (Jan. 10-15) was closely followed by six consecutive days with lows in the 20s (Jan. 17-22).  Although this was far from frigid, it equaled last winter's longest streak with lows colder than 30°. 

 

January continued the pattern of one month wet, the next month dry, a trend that started in September.

 

Chart - 5-month precip trend sept 2019-jan 2020

 

Finally, this January missed being among the ten mildest January's by the smallest of margins as it was 0.08° degrees chillier than January 1880 (39.15° vs. 39.23°).  And although January 1880 had two days with lows in the teens (both were 17° readings) and its warmest temperature was four degrees cooler than this year, it had five more days with highs of 50°+ (14 vs. 9).  Both years had nearly identical snowfall (2.3" in 2020, 2.5" in 1880) and precipitation (1.93" in 2020, 2.02" in 1880).

 

Here are analyses of the previous six Januarys:

2019

2018

2017

2016

2015

2014

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