946  
CDUS41 KLWX 120626  
CLIDCA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
226 AM EDT MON MAY 12 2025  
   
...............................  
 
   
..THE WASHINGTON NATIONAL DC CLIMATE SUMMARY FOR MAY 11 2025  
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1871 TO 2025  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................  
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 80 1:58 PM 94 1896 75 5 67  
1911  
MINIMUM 56 4:59 AM 33 1906 57 -1 48  
AVERAGE 68 66 2 58  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 2.63 2008 0.12 -0.12 0.24  
MONTH TO DATE 2.21 1.37 0.84 1.96  
SINCE MAR 1 7.73 8.08 -0.35 8.91  
SINCE JAN 1 12.52 13.56 -1.04 16.20  
 
SNOWFALL (IN)  
YESTERDAY 0.0 MM MM 0.0 0.0 0.0  
MONTH TO DATE 0.0 0.0 0.0 0.0  
SINCE MAR 1 0.0 2.0 -2.0 T  
SINCE JUL 1 14.9 13.7 1.2 8.0  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 2 -2 7  
MONTH TO DATE 9 33 -24 27  
SINCE MAR 1 521 813 -292 601  
SINCE JUL 1 3261 3736 -475 3153  
 
COOLING  
YESTERDAY 3 3 0 0  
MONTH TO DATE 51 28 23 55  
SINCE MAR 1 143 63 80 103  
SINCE JAN 1 143 63 80 104    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION S (180)  
HIGHEST GUST SPEED 18 HIGHEST GUST DIRECTION S (200)  
AVERAGE WIND SPEED 5.8  
 
SKY COVER  
AVERAGE SKY COVER 0.7  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 78 11:00 PM  
LOWEST 35 11:00 AM  
AVERAGE 57  
   
......................................................  
 
THE WASHINGTON NATIONAL DC CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 76 93 1881  
1914  
MINIMUM TEMPERATURE (F) 57 37 1913  
 
SUNRISE AND SUNSET  
MAY 12 2025...........SUNRISE 5:58 AM EDT SUNSET 8:11 PM EDT  
MAY 13 2025...........SUNRISE 5:57 AM EDT SUNSET 8:12 PM EDT  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 
 
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