078
CDUS41 KLWX 110621
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
221 AM EDT SUN OCT 11 2026
...............................
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR OCTOBER 10 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 70 2:17 PM 87 2017 70 0 67
MINIMUM 49 4:24 AM 31 1972 48 1 38
1978
AVERAGE 60 59 1 53
PRECIPITATION (IN)
YESTERDAY T 2.22 2013 0.11 -0.11 0.00
MONTH TO DATE 0.40 1.24 -0.84 0.16
SINCE SEP 1 4.20 5.18 -0.98 1.38
SINCE JAN 1 33.60 34.40 -0.80 26.02
SNOWFALL (IN)
YESTERDAY 0.0 1.3 1979 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 5 7 -2 12
MONTH TO DATE 31 58 -27 38
SINCE SEP 1 52 103 -51 45
SINCE JUL 1 52 104 -52 47
COOLING
YESTERDAY 0 1 -1 0
MONTH TO DATE 19 15 4 12
SINCE SEP 1 243 167 76 182
SINCE JAN 1 1523 1223 300 1330
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WIND (MPH)
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION E (80)
HIGHEST GUST SPEED 19 HIGHEST GUST DIRECTION E (90)
AVERAGE WIND SPEED 5.4
SKY COVER
AVERAGE SKY COVER 0.8
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT RAIN
RELATIVE HUMIDITY (PERCENT)
HIGHEST 93 3:00 AM
LOWEST 47 2:00 PM
AVERAGE 70
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THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 70 86 2010
MINIMUM TEMPERATURE (F) 47 28 1972
SUNRISE AND SUNSET
OCTOBER 11 2026.......SUNRISE 7:15 AM EDT SUNSET 6:37 PM EDT
OCTOBER 12 2026.......SUNRISE 7:16 AM EDT SUNSET 6:36 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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