National Weather Service Text Product
AFOS product CLIIAD
Dates interpreted at 00:00 UTCDisplaying AFOS PIL: CLIIAD
Product Timestamp: 2020-05-23 05:22 UTC
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354
CDUS41 KLWX 230522
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
122 AM EDT SAT MAY 23 2020
...................................
...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR MAY 22 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 75 4:49 PM 88 1975 77 -2 71
1984
2004
MINIMUM 59 4:40 AM 31 2002 53 6 48
AVERAGE 67 65 2 60
PRECIPITATION (IN)
YESTERDAY 0.40 2.07 2001 0.15 0.25 0.00
MONTH TO DATE 2.02 3.18 -1.16 4.04
SINCE MAR 1 9.57 10.03 -0.46 11.41
SINCE JAN 1 16.14 15.45 0.69 18.87
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 MAR 1 T 3.1 -3.1 1.6
SINCE JUL 1 2.9 22.0 -19.1 26.5
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 0 3 -3 5
MONTH TO DATE 175 109 66 60
SINCE MAR 1 1005 1091 -86 942
SINCE JUL 1 4149 4681 -532 4447
COOLING
YESTERDAY 2 3 -1 0
MONTH TO DATE 21 39 -18 66
SINCE MAR 1 24 59 -35 88
SINCE JAN 1 24 59 -35 88
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION E (100)
HIGHEST GUST SPEED 17 HIGHEST GUST DIRECTION E (90)
AVERAGE WIND SPEED 5.4
SKY COVER
AVERAGE SKY COVER 0.9
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
HEAVY RAIN
LIGHT RAIN
FOG
HAZE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 93 11:00 AM
LOWEST 71 4:00 PM
AVERAGE 82
..........................................................
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 77 92 1964
MINIMUM TEMPERATURE (F) 53 39 1971
1990
2002
SUNRISE AND SUNSET
MAY 23 2020...........SUNRISE 5:51 AM EDT SUNSET 8:23 PM EDT
MAY 24 2020...........SUNRISE 5:50 AM EDT SUNSET 8:24 PM EDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$