172
CDUS41 KLWX 100620
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
220 AM EDT THU APR 10 2025
...............................
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR APRIL 9 2025
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1960 TO 2025
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...............................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 54 4:58 PM 89 2001 65 -11 80
MINIMUM 26 6:07 AM 23 1977 41 -15 49
AVERAGE 40 53 -13 65
PRECIPITATION (IN)
YESTERDAY 0.00 1.02 1998 0.11 -0.11 0.00
MONTH TO DATE 0.59 0.99 -0.40 1.28
SINCE MAR 1 2.01 4.49 -2.48 5.17
SINCE JAN 1 6.43 10.04 -3.61 12.62
SNOWFALL (IN)
YESTERDAY 0.0 2.6 1982 0.0 0.0 0.0
MONTH TO DATE 0.0 0.1 -0.1 T
SINCE MAR 1 0.0 4.0 -4.0 T
SINCE JUL 1 15.5 21.0 -5.5 11.7
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 25 13 12 0
MONTH TO DATE 111 127 -16 119
SINCE MAR 1 561 774 -213 583
SINCE JUL 1 3883 4284 -401 3547
COOLING
YESTERDAY 0 0 0 0
MONTH TO DATE 2 0 2 0
SINCE MAR 1 19 2 17 0
SINCE JAN 1 19 2 17 3
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION SE (150)
HIGHEST GUST SPEED 21 HIGHEST GUST DIRECTION SW (210)
AVERAGE WIND SPEED 4.5
SKY COVER
AVERAGE SKY COVER 0.2
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 68 3:00 AM
LOWEST 26 4:00 PM
AVERAGE 47
......................................................
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 65 89 2013
MINIMUM TEMPERATURE (F) 41 19 1985
SUNRISE AND SUNSET
APRIL 10 2025.........SUNRISE 6:40 AM EDT SUNSET 7:42 PM EDT
APRIL 11 2025.........SUNRISE 6:39 AM EDT SUNSET 7:43 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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