National Weather Service Text Product
AFOS product CLIIAD
Dates interpreted at 00:00 UTCDisplaying AFOS PIL: CLIIAD
Product Timestamp: 2020-05-18 05:23 UTC
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746
CDUS41 KLWX 180523
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
123 AM EDT MON MAY 18 2020
...................................
...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR MAY 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 67 5:13 PM 93 1960 75 -8 82
MINIMUM 58 11:59 PM 30 1984 51 7 51
AVERAGE 63 63 0 67
PRECIPITATION (IN)
YESTERDAY T 1.22 1970 0.16 -0.16 T
MONTH TO DATE 1.62 2.42 -0.80 4.01
SINCE MAR 1 9.17 9.27 -0.10 11.38
SINCE JAN 1 15.74 14.69 1.05 18.84
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 2 4 -2 0
MONTH TO DATE 156 92 64 52
SINCE MAR 1 986 1074 -88 934
SINCE JUL 1 4130 4664 -534 4439
COOLING
YESTERDAY 0 2 -2 2
MONTH TO DATE 19 25 -6 33
SINCE MAR 1 22 45 -23 55
SINCE JAN 1 22 45 -23 55
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION E (110)
HIGHEST GUST SPEED 17 HIGHEST GUST DIRECTION E (90)
AVERAGE WIND SPEED 6.2
SKY COVER
AVERAGE SKY COVER 0.9
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT RAIN
RELATIVE HUMIDITY (PERCENT)
HIGHEST 81 5:00 AM
LOWEST 65 12:00 AM
AVERAGE 73
..........................................................
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 76 91 1987
MINIMUM TEMPERATURE (F) 52 33 1973
SUNRISE AND SUNSET
MAY 18 2020...........SUNRISE 5:54 AM EDT SUNSET 8:19 PM EDT
MAY 19 2020...........SUNRISE 5:53 AM EDT SUNSET 8:20 PM EDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$