National Weather Service Text Product
AFOS product CLIIAD
Dates interpreted at 00:00 UTCDisplaying AFOS PIL: CLIIAD
Product Timestamp: 2020-05-21 05:24 UTC
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785
CDUS41 KLWX 210524
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
124 AM EDT THU MAY 21 2020
...................................
...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR MAY 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 64 3:07 PM 93 1996 76 -12 88
MINIMUM 50 11:00 PM 36 2002 52 -2 69
AVERAGE 57 64 -7 79
PRECIPITATION (IN)
YESTERDAY 0.00 1.86 2005 0.15 -0.15 T
MONTH TO DATE 1.62 2.87 -1.25 4.04
SINCE MAR 1 9.17 9.72 -0.55 11.41
SINCE JAN 1 15.74 15.14 0.60 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 8 3 5 0
MONTH TO DATE 171 103 68 52
SINCE MAR 1 1001 1085 -84 934
SINCE JUL 1 4145 4675 -530 4439
COOLING
YESTERDAY 0 3 -3 14
MONTH TO DATE 19 33 -14 66
SINCE MAR 1 22 53 -31 88
SINCE JAN 1 22 53 -31 88
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 21 HIGHEST WIND DIRECTION E (90)
HIGHEST GUST SPEED 26 HIGHEST GUST DIRECTION E (100)
AVERAGE WIND SPEED 12.9
SKY COVER
AVERAGE SKY COVER 0.9
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 69 10:00 PM
LOWEST 34 12:00 AM
AVERAGE 52
..........................................................
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 76 92 1996
MINIMUM TEMPERATURE (F) 53 33 1992
SUNRISE AND SUNSET
MAY 21 2020...........SUNRISE 5:52 AM EDT SUNSET 8:21 PM EDT
MAY 22 2020...........SUNRISE 5:51 AM EDT SUNSET 8:22 PM EDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$