National Weather Service Text Product
AFOS product CLIIAD
Dates interpreted at 00:00 UTCDisplaying AFOS PIL: CLIIAD
Product Timestamp: 2020-10-21 05:29 UTC
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472
CDUS41 KLWX 210529
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
129 AM EDT WED OCT 21 2020
...................................
...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR OCTOBER 20 2020...
CLIMATE NORMAL PERIOD: 1981 TO 2010
CLIMATE RECORD PERIOD: 1960 TO 2020
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...................................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 76 3:24 PM 83 1969 67 9 57
2016
MINIMUM 50 5:50 AM 20 1972 42 8 52
AVERAGE 63 54 9 55
PRECIPITATION (IN)
YESTERDAY 0.00 1.44 2019 0.10 -0.10 1.44
MONTH TO DATE 1.33 2.08 -0.75 2.58
SINCE SEP 1 3.61 6.00 -2.39 2.99
SINCE JAN 1 37.83 34.00 3.83 32.83
SNOWFALL (IN)
YESTERDAY 0.0 T 1974 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 2 11 -9 10
MONTH TO DATE 128 161 -33 110
SINCE SEP 1 189 217 -28 115
SINCE JUL 1 189 219 -30 115
COOLING
YESTERDAY 0 0 0 0
MONTH TO DATE 4 16 -12 48
SINCE SEP 1 139 157 -18 286
SINCE JAN 1 1391 1173 218 1521
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 10 HIGHEST WIND DIRECTION S (180)
HIGHEST GUST SPEED 14 HIGHEST GUST DIRECTION SE (120)
AVERAGE WIND SPEED 4.6
SKY COVER
AVERAGE SKY COVER 0.6
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 100 3:00 AM
LOWEST 54 2:00 PM
AVERAGE 77
..........................................................
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 67 86 1979
MINIMUM TEMPERATURE (F) 42 22 1972
SUNRISE AND SUNSET
OCTOBER 21 2020.......SUNRISE 7:26 AM EDT SUNSET 6:22 PM EDT
OCTOBER 22 2020.......SUNRISE 7:27 AM EDT SUNSET 6:21 PM EDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$