National Weather Service Text Product
AFOS product CLIIAD
Dates interpreted at 00:00 UTCDisplaying AFOS PIL: CLIIAD
Product Timestamp: 2020-10-17 05:24 UTC
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137
CDUS41 KLWX 170524
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
124 AM EDT SAT OCT 17 2020
...................................
...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR OCTOBER 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 68 12:55 AM 85 1989 68 0 62
MINIMUM 45 11:59 PM 30 1986 44 1 47
AVERAGE 57 56 1 55
PRECIPITATION (IN)
YESTERDAY 0.01 1.10 2002 0.10 -0.09 1.04
MONTH TO DATE 1.33 1.68 -0.35 1.14
SINCE SEP 1 3.61 5.60 -1.99 1.55
SINCE JAN 1 37.83 33.60 4.23 31.39
SNOWFALL (IN)
YESTERDAY 0.0 T 1977 0.0 0.0 0.0
MONTH TO DATE 0.0 0.0 0.0 0.0
SINCE SEP 1 0.0 0.0 0.0 0.0
SINCE JUL 1 0.0 0.0 0.0 0.0
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 8 10 -2 10
MONTH TO DATE 92 120 -28 61
SINCE SEP 1 153 176 -23 66
SINCE JUL 1 153 178 -25 66
COOLING
YESTERDAY 0 0 0 0
MONTH TO DATE 4 16 -12 48
SINCE SEP 1 139 157 -18 286
SINCE JAN 1 1391 1173 218 1521
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 18 HIGHEST WIND DIRECTION N (360)
HIGHEST GUST SPEED 25 HIGHEST GUST DIRECTION N (340)
AVERAGE WIND SPEED 10.2
SKY COVER
AVERAGE SKY COVER 0.9
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT RAIN
RELATIVE HUMIDITY (PERCENT)
HIGHEST 84 12:00 AM
LOWEST 44 3:00 PM
AVERAGE 64
..........................................................
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 68 84 2016
MINIMUM TEMPERATURE (F) 43 31 1981
1982
SUNRISE AND SUNSET
OCTOBER 17 2020.......SUNRISE 7:22 AM EDT SUNSET 6:28 PM EDT
OCTOBER 18 2020.......SUNRISE 7:23 AM EDT SUNSET 6:26 PM EDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$