National Weather Service Text Product
AFOS product CLIIAD
Dates interpreted at 00:00 UTCDisplaying AFOS PIL: CLIIAD
Product Timestamp: 2017-05-22 05:27 UTC
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178
CDUS41 KLWX 220530
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
127 AM EDT MON MAY 22 2017
...................................
...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR MAY 21 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 67 305 PM 92 1996 76 -9 62
MINIMUM 57 644 AM 33 1992 53 4 53
AVERAGE 62 64 -2 58
PRECIPITATION (IN)
YESTERDAY T 1.06 2003 0.16 -0.16 0.55
MONTH TO DATE 4.85 3.03 1.82 4.86
SINCE MAR 1 12.01 9.88 2.13 8.19
SINCE JAN 1 15.45 15.30 0.15 16.45
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 3 3 0 7
MONTH TO DATE 129 106 23 154
SINCE MAR 1 948 1088 -140 935
SINCE JUL 1 3841 4678 -837 4026
COOLING
YESTERDAY 0 3 -3 0
MONTH TO DATE 50 36 14 4
SINCE MAR 1 119 56 63 27
SINCE JAN 1 119 56 63 27
..................................................................
WIND (MPH)
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION E (100)
HIGHEST GUST SPEED 19 HIGHEST GUST DIRECTION E (100)
AVERAGE WIND SPEED 6.8
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 1.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 65 800 PM
LOWEST 46 1200 PM
AVERAGE 56
..........................................................
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 77 88 2004
1984
1975
MINIMUM TEMPERATURE (F) 53 31 2002
SUNRISE AND SUNSET
MAY 22 2017...........SUNRISE 551 AM EDT SUNSET 822 PM EDT
MAY 23 2017...........SUNRISE 551 AM EDT SUNSET 823 PM EDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$