National Weather Service Text Product
AFOS product CLIIAD
Dates interpreted at 00:00 UTCDisplaying AFOS PIL: CLIIAD
Product Timestamp: 2020-01-17 05:28 UTC
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948
CDUS41 KLWX 170529
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
1228 AM EST FRI JAN 17 2020
...................................
...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR JANUARY 16 2020...
CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1960 TO 2020
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
..................................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 54 544 AM 65 1974 42 12 41
MINIMUM 35 1159 PM -4 1964 24 11 12
AVERAGE 45 33 12 27
PRECIPITATION (IN)
YESTERDAY T 0.64 1991 0.08 -0.08 0.00
MONTH TO DATE 1.45 1.33 0.12 1.13
SINCE DEC 1 4.42 4.29 0.13 6.89
SINCE JAN 1 1.45 1.33 0.12 1.13
SNOWFALL (IN)
YESTERDAY T 2.3 1965 0.2 -0.2
MONTH TO DATE 2.0 3.2 -1.2
SINCE JUL 1 2.6 7.2 -4.6
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 20 32 -12 38
MONTH TO DATE 349 512 -163 464
SINCE DEC 1 1149 1394 -245 1268
SINCE JUL 1 2012 2310 -298 2226
COOLING
YESTERDAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE DEC 1 0 0 0 0
SINCE JAN 1 0 0 0 0
..................................................................
WIND (MPH)
HIGHEST WIND SPEED 37 HIGHEST WIND DIRECTION NW (300)
HIGHEST GUST SPEED 50 HIGHEST GUST DIRECTION NW (300)
AVERAGE WIND SPEED 18.9
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.5
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT SNOW
RELATIVE HUMIDITY (PERCENT)
HIGHEST 93 1200 AM
LOWEST 33 100 PM
AVERAGE 63
..........................................................
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 42 70 1990
MINIMUM TEMPERATURE (F) 24 -7 1982
SUNRISE AND SUNSET
JANUARY 17 2020.......SUNRISE 726 AM EST SUNSET 513 PM EST
JANUARY 18 2020.......SUNRISE 726 AM EST SUNSET 515 PM EST
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$