National Weather Service Text Product
AFOS product CLIIAD
Dates interpreted at 00:00 UTCDisplaying AFOS PIL: CLIIAD
Product Timestamp: 2017-10-10 05:29 UTC
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889
CDUS41 KLWX 100529
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
129 AM EDT TUE OCT 10 2017
...................................
...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR OCTOBER 9 2017...
CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1960 TO 2017
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
..................................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 87 311 PM 94 2007 70 17 67
MINIMUM 69 1159 PM 26 2001 46 23 53
AVERAGE 78 58 20 60
PRECIPITATION (IN)
YESTERDAY 0.52 2.53 1976 0.11 0.41 T
MONTH TO DATE 0.61 0.95 -0.34 0.40
SINCE SEP 1 2.36 4.87 -2.51 2.95
SINCE JAN 1 35.36 32.87 2.49 30.95
SNOWFALL (IN)
YESTERDAY 0.0 MM MM 0.0 0.0
MONTH TO DATE 0.0 0.0 0.0
SINCE JUL 1 T 0.0 0.0
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 0 8 -8 5
MONTH TO DATE 25 58 -33 19
SINCE SEP 1 65 114 -49 25
SINCE JUL 1 66 116 -50 25
COOLING
YESTERDAY 13 1 12 0
MONTH TO DATE 41 11 30 4
SINCE SEP 1 196 152 44 259
SINCE JAN 1 1257 1168 89 1522
..................................................................
WIND (MPH)
HIGHEST WIND SPEED 21 HIGHEST WIND DIRECTION S (200)
HIGHEST GUST SPEED 31 HIGHEST GUST DIRECTION S (160)
AVERAGE WIND SPEED 10.4
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.8
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
HEAVY RAIN
RAIN
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 100 100 AM
LOWEST 65 300 PM
AVERAGE 83
..........................................................
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 70 85 1985
MINIMUM TEMPERATURE (F) 46 31 1978
1972
SUNRISE AND SUNSET
OCTOBER 10 2017.......SUNRISE 715 AM EDT SUNSET 638 PM EDT
OCTOBER 11 2017.......SUNRISE 716 AM EDT SUNSET 637 PM EDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$