National Weather Service Text Product
AFOS product CLIIAD
Dates interpreted at 00:00 UTCDisplaying AFOS PIL: CLIIAD
Product Timestamp: 2020-10-18 05:24 UTC
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220
CDUS41 KLWX 180524
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
124 AM EDT SUN OCT 18 2020
...................................
...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR OCTOBER 17 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 62 3:56 PM 84 2016 68 -6 58
MINIMUM 37 6:48 AM 31 1981 43 -6 49
1982
AVERAGE 50 56 -6 54
PRECIPITATION (IN)
YESTERDAY 0.00 1.11 1975 0.10 -0.10 0.00
MONTH TO DATE 1.33 1.78 -0.45 1.14
SINCE SEP 1 3.61 5.70 -2.09 1.55
SINCE JAN 1 37.83 33.70 4.13 31.39
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 15 10 5 11
MONTH TO DATE 107 130 -23 72
SINCE SEP 1 168 186 -18 77
SINCE JUL 1 168 188 -20 77
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 14 HIGHEST WIND DIRECTION N (350)
HIGHEST GUST SPEED 19 HIGHEST GUST DIRECTION N (350)
AVERAGE WIND SPEED 2.4
SKY COVER
AVERAGE SKY COVER 0.1
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 97 7:00 AM
LOWEST 27 5:00 PM
AVERAGE 62
..........................................................
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 68 85 2016
MINIMUM TEMPERATURE (F) 43 27 1976
1982
SUNRISE AND SUNSET
OCTOBER 18 2020.......SUNRISE 7:23 AM EDT SUNSET 6:26 PM EDT
OCTOBER 19 2020.......SUNRISE 7:24 AM EDT SUNSET 6:25 PM EDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$