744
CDUS41 KLWX 250627
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
227 AM EDT FRI SEP 25 2026
...............................
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR SEPTEMBER 24 2026
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1960 TO 2026
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...............................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 66 4:11 PM 97 2010 76 -10 79
MINIMUM 50 11:31 PM 30 1974 55 -5 63
AVERAGE 58 65 -7 71
PRECIPITATION (IN)
YESTERDAY 0.00 2.17 2001 0.13 -0.13 T
MONTH TO DATE 3.61 3.11 0.50 1.06
SINCE SEP 1 3.61 3.11 0.50 1.06
SINCE JAN 1 33.01 32.33 0.68 25.70
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 SEP 1 0.0 0.0 0.0 0.0
SINCE JUL 1 0.0 0.0 0.0 0.0
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 7 2 5 0
MONTH TO DATE 17 22 -5 7
SINCE SEP 1 17 22 -5 7
SINCE JUL 1 17 23 -6 9
COOLING
YESTERDAY 0 3 -3 6
MONTH TO DATE 191 137 54 124
SINCE SEP 1 191 137 54 124
SINCE JAN 1 1471 1193 278 1272
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WIND (MPH)
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION N (20)
HIGHEST GUST SPEED 20 HIGHEST GUST DIRECTION NE (30)
AVERAGE WIND SPEED 8.8
SKY COVER
AVERAGE SKY COVER 0.6
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 83 1:00 AM
LOWEST 52 5:00 PM
AVERAGE 68
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THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 76 93 2010
MINIMUM TEMPERATURE (F) 54 33 1983
SUNRISE AND SUNSET
SEPTEMBER 25 2026.....SUNRISE 7:00 AM EDT SUNSET 7:02 PM EDT
SEPTEMBER 26 2026.....SUNRISE 7:01 AM EDT SUNSET 7:00 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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