National Weather Service Text Product
AFOS product CLIIAD
Dates interpreted at 00:00 UTCDisplaying AFOS PIL: CLIIAD
Product Timestamp: 2017-05-21 14:35 UTC
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352
CDUS41 KLWX 211437
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
1035 AM EDT SUN MAY 21 2017
...................................
...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR MAY 20 2017...
CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1962 TO 2017
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
..................................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 71 1003 AM 93 1996 76 -5 77
MINIMUM 60 1159 PM 36 2002 52 8 45
AVERAGE 66 64 2 61
PRECIPITATION (IN)
YESTERDAY 0.00 1.86 2005 0.15 -0.15 0.00
MONTH TO DATE 4.85 2.87 1.98 4.31
SINCE MAR 1 12.01 9.72 2.29 7.64
SINCE JAN 1 15.45 15.14 0.31 15.90
SNOWFALL (IN)
YESTERDAY 0.0 MM MM 0.0 0.0
MONTH TO DATE 0.0 0.0 0.0
SINCE JUL 1 7.3 22.0 -14.7
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 0 3 -3 4
MONTH TO DATE 126 103 23 147
SINCE MAR 1 945 1085 -140 928
SINCE JUL 1 3838 4675 -837 4019
COOLING
YESTERDAY 1 3 -2 0
MONTH TO DATE 50 33 17 4
SINCE MAR 1 119 53 66 27
SINCE JAN 1 119 53 66 27
..................................................................
WIND (MPH)
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION NE (50)
HIGHEST GUST SPEED 19 HIGHEST GUST DIRECTION NE (40)
AVERAGE WIND SPEED 7.9
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.9
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 93 100 AM
LOWEST 56 800 PM
AVERAGE 75
..........................................................
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 2017...........SUNRISE 552 AM EDT SUNSET 821 PM EDT
MAY 22 2017...........SUNRISE 551 AM EDT SUNSET 822 PM EDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$