326
CDUS41 KLWX 170624
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
224 AM EDT FRI OCT 17 2025
...............................
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR OCTOBER 16 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 65 3:03 PM 85 1989 68 -3 59
MINIMUM 39 11:58 PM 30 1986 45 -6 38
AVERAGE 52 56 -4 49
PRECIPITATION (IN)
YESTERDAY 0.00 1.10 2002 0.12 -0.12 0.00
MONTH TO DATE 0.43 1.93 -1.50 0.13
SINCE SEP 1 1.65 5.87 -4.22 3.40
SINCE JAN 1 26.29 35.09 -8.80 29.18
SNOWFALL (IN)
YESTERDAY 0.0 T 1977 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 13 9 4 16
MONTH TO DATE 71 108 -37 83
SINCE SEP 1 78 153 -75 95
SINCE JUL 1 80 154 -74 97
COOLING
YESTERDAY 0 0 0 0
MONTH TO DATE 12 19 -7 14
SINCE SEP 1 182 171 11 151
SINCE JAN 1 1330 1227 103 1565
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WIND (MPH)
HIGHEST WIND SPEED 21 HIGHEST WIND DIRECTION N (10)
HIGHEST GUST SPEED 31 HIGHEST GUST DIRECTION N (20)
AVERAGE WIND SPEED 9.5
SKY COVER
AVERAGE SKY COVER 0.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 79 5:00 AM
LOWEST 26 2:00 PM
AVERAGE 53
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THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 67 84 2016
MINIMUM TEMPERATURE (F) 45 31 1981
1982
SUNRISE AND SUNSET
OCTOBER 17 2025.......SUNRISE 7:22 AM EDT SUNSET 6:28 PM EDT
OCTOBER 18 2025.......SUNRISE 7:23 AM EDT SUNSET 6:27 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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