National Weather Service Text Product
AFOS product CLIIAD
Dates interpreted at 00:00 UTCDisplaying AFOS PIL: CLIIAD
Product Timestamp: 2017-11-20 05:28 UTC
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327
CDUS41 KLWX 200530
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
1228 AM EST MON NOV 20 2017
...................................
...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR NOVEMBER 19 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 60 347 AM 76 1985 56 4 70
MINIMUM 40 929 PM 13 2014 35 5 35
AVERAGE 50 45 5 53
PRECIPITATION (IN)
YESTERDAY 0.09 1.93 2003 0.12 -0.03 0.02
MONTH TO DATE 1.96 2.15 -0.19 0.25
SINCE SEP 1 6.86 9.32 -2.46 3.45
SINCE JAN 1 39.86 37.32 2.54 31.45
SNOWFALL (IN)
YESTERDAY 0.0 T 2016 0.0 0.0
1984
1969
MONTH TO DATE 0.0 0.1 -0.1
SINCE JUL 1 T 0.1 -0.1
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 15 20 -5 12
MONTH TO DATE 342 318 24 275
SINCE SEP 1 562 672 -110 486
SINCE JUL 1 563 674 -111 486
COOLING
YESTERDAY 0 0 0 0
MONTH TO DATE 1 0 1 2
SINCE SEP 1 220 160 60 296
SINCE JAN 1 1281 1176 105 1559
..................................................................
WIND (MPH)
HIGHEST WIND SPEED 38 HIGHEST WIND DIRECTION W (290)
HIGHEST GUST SPEED 49 HIGHEST GUST DIRECTION NW (300)
AVERAGE WIND SPEED 17.6
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.8
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 100 200 AM
LOWEST 45 300 PM
AVERAGE 73
..........................................................
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 56 79 1985
MINIMUM TEMPERATURE (F) 34 18 1980
SUNRISE AND SUNSET
NOVEMBER 20 2017......SUNRISE 658 AM EST SUNSET 452 PM EST
NOVEMBER 21 2017......SUNRISE 659 AM EST SUNSET 452 PM EST
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$