Wettest Three Consecutive Years in DC History

[RodneyS]

I just posted this to the Capital Weather Gang webpage:

I think the bigger news about today's precipitation at DCA is that it pushed the 3-year total, 2018-2020, to 161 inches, with one month remaining to add to that record amount in official DC precipitation history, which began in January 1871. That total eclipsed the previous DC 3-year record of 160.64 inches, set 142 years ago, 1876-1878.  Moreover, the current decade, 2011-2020, has averaged 44.0 inches per year, which is DC's second wettest of 15, behind only 1881-1890, which averaged 47.1 inches.  The previous second wettest decade was 1931-40, which averaged 43.8 inches.  In contrast,  1961-1970 was the driest DC decade, averaging 36.5 inches.  See https://www.washingtonpost.com/weather/2020/11/30/dc-area-forecast-stormy-warm-windy-today-before-chillier-weather-settles

[MN Transplant]

This is pretty amazing.

[RodneyS]

On 11/30/2020 at 4:14 PM, RodneyS said:

I just posted this to the Capital Weather Gang webpage:

I think the bigger news about today's precipitation at DCA is that it pushed the 3-year total, 2018-2020, to 161 inches, with one month remaining to add to that record amount in official DC precipitation history, which began in January 1871. That total eclipsed the previous DC 3-year record of 160.64 inches, set 142 years ago, 1876-1878.  Moreover, the current decade, 2011-2020, has averaged 44.0 inches per year, which is DC's second wettest of 15, behind only 1881-1890, which averaged 47.1 inches.  The previous second wettest decade was 1931-40, which averaged 43.8 inches.  In contrast,  1961-1970 was the driest DC decade, averaging 36.5 inches.  See https://www.washingtonpost.com/weather/2020/11/30/dc-area-forecast-stormy-warm-windy-today-before-chillier-weather-settles

2020 precipitation at DCA finished at 57.34 inches, 7th highest in DC history. That pushed the record-breaking 3-year total to 165.96 inches and the 2011-2020 decade yearly average to 44.51 inches.  The most notable aspect of 2020 DCA precipitation was the second half total of 36.73 inches, which exceeded every past second half except 2018, which was 41.10 inches.   

[snownut]

On 11/30/2020 at 1:14 PM, RodneyS said:

I just posted this to the Capital Weather Gang webpage:

I think the bigger news about today's precipitation at DCA is that it pushed the 3-year total, 2018-2020, to 161 inches, with one month remaining to add to that record amount in official DC precipitation history, which began in January 1871. That total eclipsed the previous DC 3-year record of 160.64 inches, set 142 years ago, 1876-1878.  Moreover, the current decade, 2011-2020, has averaged 44.0 inches per year, which is DC's second wettest of 15, behind only 1881-1890, which averaged 47.1 inches.  The previous second wettest decade was 1931-40, which averaged 43.8 inches.  In contrast,  1961-1970 was the driest DC decade, averaging 36.5 inches.  See https://www.washingtonpost.com/weather/2020/11/30/dc-area-forecast-stormy-warm-windy-today-before-chillier-weather-settles

That is amazing.  One of the biggest reasons I moved west was to get away from all the rain and humidity.  Lived in VA for 47 years and now my 7th year in Oregon.  This was my driest year yet with just 9.3 inches for the year.  Average is about 14”