400  
CXUS51 KLWX 012002  
CLMDCA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
402 PM EDT THU APR 01 2021  
   
...............................
 
 
...THE WASHINGTON NATIONAL DC CLIMATE SUMMARY FOR THE MONTH OF MARCH 2021...  
 
CLIMATE NORMAL PERIOD: 1981 TO 2010  
CLIMATE RECORD PERIOD: 1871 TO 2021  
 
WEATHER OBSERVED NORMAL DEPART LAST YEAR'S  
VALUE DATE(S) VALUE FROM VALUE  
NORMAL    
..........................................................
 
 
TEMPERATURE (F)  
RECORD  
HIGH 93 03/23/1907  
LOW 4 03/04/1873  
HIGHEST 84 03/26 78 6 83  
LOWEST 28 03/05 23 5 26  
03/07  
AVG. MAXIMUM 60.9 55.9 5.0 62.1  
AVG. MINIMUM 41.4 37.6 3.8 44.3  
MEAN 51.2 46.8 4.4 53.2  
DAYS MAX >= 90 0 0.0 0.0 0  
DAYS MAX <= 32 0 0.4 -0.4 0  
DAYS MIN <= 32 8 7.1 0.9 1  
DAYS MIN <= 0 0 0.0 0.0 0  
 
PRECIPITATION (INCHES)  
RECORD  
MAXIMUM 8.84 1891  
MINIMUM 0.05 2006  
TOTALS 3.80 3.48 0.32 2.31  
DAILY AVG. 0.12 0.11 0.01 0.07  
DAYS >= .01 5 10.5 -5.5 16  
DAYS >= .10 5 6.5 -1.5 7  
DAYS >= .50 3 2.4 0.6 0  
DAYS >= 1.00 1 0.9 0.1 0  
GREATEST  
24 HR. TOTAL 1.69 03/24 TO 03/24 0.47  
STORM TOTAL 1.69 0.46  
(MM/DD(HH))  
 
SNOWFALL (INCHES)  
RECORDS  
TOTAL 19.3 1914  
TOTALS 0.0 1.3 -1.3 0.0  
SINCE 7/1 5.4 15.4 -10.0 MM  
DAYS >= TRACE 0 0.9 -0.9 0  
DAYS >= 1.0 0 0.4 -0.4 0  
GREATEST  
SNOW DEPTH 0 0  
 
DEGREE DAYS  
HEATING TOTAL 430 568 -138 367  
SINCE 7/1 3184 3675 -491 MM  
COOLING TOTAL 7 2 5 5  
SINCE 1/1 7 2 5 MM    
..........................................................
 
 
WIND (MPH)  
AVERAGE WIND SPEED 9.3  
HIGHEST WIND SPEED/DIRECTION 35/320  
HIGHEST GUST SPEED/DIRECTION 55/330  
55/230  
 
SKY COVER  
AVERAGE SKY COVER 0.53  
 
AVERAGE RH (PERCENT) 53  
 
WEATHER CONDITIONS. NUMBER OF DAYS WITH  
THUNDERSTORM 0 MIXED PRECIP 0  
HEAVY RAIN 2 RAIN 4  
LIGHT RAIN 7 FREEZING RAIN 0  
LT FREEZING RAIN 0 HAIL 0  
HEAVY SNOW 0 SNOW 0  
LIGHT SNOW 0 SLEET 0  
FOG 8 FOG W/VIS <= 1/4 MILE 1  
HAZE 2  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
   
.................................................................
 
 
WASHINGTON DC...RONALD REAGAN WASHINGTON NATIONAL AIRPORT...  
 
THE AVERAGE TEMPERATURE IN MARCH 2021 WAS WELL ABOVE NORMAL.  
HOWEVER, IT WAS THE COLDEST MARCH SINCE 2019, WHEN THE AVERAGE  
TEMPERATURE WAS 46.8 DEGREES.  
 
TOTAL PRECIPITATION WAS 109 PERCENT OF NORMAL. IT WAS THE WETTEST  
MARCH SINCE 2019, WHEN 4.00 INCHES OF PRECIPITATION FELL.  
 
TOTAL SNOWFALL WAS 0 PERCENT OF NORMAL. THIS WAS THE SAME AS LAST  
YEAR.  
 
A RECORD HIGH TEMPERATURE OF 79 DEGREES WAS SET ON MARCH 11TH. THIS  
BROKE THE OLD RECORD OF 78 DEGREES SET IN 1967.  
 
A RECORD WARM LOW TEMPERATURE OF 54 DEGREES WAS SET ON MARCH 24TH.  
THIS TIED THE RECORD FROM 2012.  
 
A RECORD DAILY PRECIPITATION TOTAL OF 1.69 INCHES WAS ALSO SET ON  
MARCH 24TH. THIS BROKE THE OLD RECORD OF 1.45 INCHES FROM 1905.  
 
WEATHER RECORDS FOR THE WASHINGTON DC AREA HAVE BEEN RECORDED AT  
WHAT IS NOW RONALD REAGAN WASHINGTON NATIONAL AIRPORT SINCE 1941.  
THE OFFICIAL WEATHER RECORD CONSISTS OF THAT DATA BACK TO 1945, AND  
OBSERVATIONS TAKEN IN DOWNTOWN WASHINGTON FROM 1871 THROUGH 1944.  
TEMPERATURE RECORDS FOR THE WASHINGTON DC AREA EXTEND BACK TO  
JANUARY OF 1872, WITH PRECIPITATION RECORDS EXTENDING BACK TO  
JANUARY OF 1871 AND SNOWFALL RECORDS EXTENDING BACK TO JANUARY OF  
1884.  
 
ALL CLIMATE DATA ARE CONSIDERED PRELIMINARY UNTIL REVIEWED BY THE  
NATIONAL CENTERS FOR ENVIRONMENTAL INFORMATION (NCEI).  
 

 
 
RCM  
 
CLICK HERE TO GO TO PREVIOUS BULLETINS.

The Nexlab VA Page
The Nexlab MD Page
The Nexlab WV Page Main Text Page