National Weather Service Text Product
AFOS product CLIIAD
Dates interpreted at 00:00 UTCDisplaying AFOS PIL: CLIIAD
Product Timestamp: 2020-01-20 05:39 UTC
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320
CDUS41 KLWX 200539
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
1239 AM EST MON JAN 20 2020
...................................
...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR JANUARY 19 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 43 1042 AM 65 1972 42 1 37
MINIMUM 25 1159 PM -6 1994 24 1 30
AVERAGE 34 33 1 34
PRECIPITATION (IN)
YESTERDAY 0.04 1.36 1987 0.09 -0.05 0.84
MONTH TO DATE 1.71 1.59 0.12 2.13
SINCE DEC 1 4.68 4.55 0.13 7.89
SINCE JAN 1 1.71 1.59 0.12 2.13
SNOWFALL (IN)
YESTERDAY T 4.3 1978 0.3 -0.3
MONTH TO DATE 2.3 4.0 -1.7
SINCE JUL 1 2.9 8.0 -5.1
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 31 32 -1 31
MONTH TO DATE 448 608 -160 556
SINCE DEC 1 1248 1490 -242 1360
SINCE JUL 1 2111 2406 -295 2318
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 33 HIGHEST WIND DIRECTION NW (310)
HIGHEST GUST SPEED 43 HIGHEST GUST DIRECTION NW (320)
AVERAGE WIND SPEED 14.8
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.7
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 92 1200 AM
LOWEST 44 300 PM
AVERAGE 68
..........................................................
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 42 63 2006
MINIMUM TEMPERATURE (F) 24 -7 1985
SUNRISE AND SUNSET
JANUARY 20 2020.......SUNRISE 725 AM EST SUNSET 517 PM EST
JANUARY 21 2020.......SUNRISE 724 AM EST SUNSET 518 PM EST
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$