National Weather Service Text Product
AFOS product CLIIAD
Dates interpreted at 00:00 UTCDisplaying AFOS PIL: CLIIAD
Product Timestamp: 2017-02-21 05:24 UTC
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252
CDUS41 KLWX 210525
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
1224 AM EST TUE FEB 21 2017
...................................
...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR FEBRUARY 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 65 356 PM 70 1971 48 17 67
MINIMUM 40 1157 PM -2 1979 27 13 42
AVERAGE 53 37 16 55
PRECIPITATION (IN)
YESTERDAY 0.00 1.02 1996 0.10 -0.10 0.00
MONTH TO DATE 0.25 1.97 -1.72 2.57
SINCE DEC 1 5.34 7.61 -2.27 10.80
SINCE JAN 1 2.98 4.65 -1.67 7.04
SNOWFALL (IN)
YESTERDAY 0.0 0.7 1969 0.2 -0.2
MONTH TO DATE 0.6 5.9 -5.3
SINCE JUL 1 1.6 17.2 -15.6
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 12 28 -16 10
MONTH TO DATE 455 593 -138 616
SINCE DEC 1 2064 2461 -397 2152
SINCE JUL 1 2791 3377 -586 2902
COOLING
YESTERDAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE DEC 1 0 0 0 2
SINCE JAN 1 0 0 0 0
..................................................................
WIND (MPH)
HIGHEST WIND SPEED 18 HIGHEST WIND DIRECTION N (350)
HIGHEST GUST SPEED 23 HIGHEST GUST DIRECTION NW (320)
AVERAGE WIND SPEED 8.0
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.3
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 83 500 AM
LOWEST 26 500 PM
AVERAGE 55
..........................................................
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 48 70 1997
MINIMUM TEMPERATURE (F) 27 7 1972
1968
SUNRISE AND SUNSET
FEBRUARY 21 2017......SUNRISE 653 AM EST SUNSET 554 PM EST
FEBRUARY 22 2017......SUNRISE 652 AM EST SUNSET 555 PM EST
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$