National Weather Service Text Product
AFOS product CLIIAD
Dates interpreted at 00:00 UTCDisplaying AFOS PIL: CLIIAD
Product Timestamp: 2017-10-18 05:22 UTC
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228
CDUS41 KLWX 180522
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
122 AM EDT WED OCT 18 2017
...................................
...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR OCTOBER 17 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 63 326 PM 84 2016 68 -5 84
MINIMUM 36 630 AM 31 1982 43 -7 51
1981
AVERAGE 50 56 -6 68
PRECIPITATION (IN)
YESTERDAY 0.00 1.11 1975 0.10 -0.10 0.00
MONTH TO DATE 1.48 1.78 -0.30 0.40
SINCE SEP 1 3.23 5.70 -2.47 2.95
SINCE JAN 1 36.23 33.70 2.53 30.95
SNOWFALL (IN)
YESTERDAY 0.0 MM MM 0.0 0.0
MONTH TO DATE 0.0 0.0 0.0
SINCE JUL 1 T 0.0 0.0
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 15 10 5 0
MONTH TO DATE 53 130 -77 93
SINCE SEP 1 93 186 -93 99
SINCE JUL 1 94 188 -94 99
COOLING
YESTERDAY 0 0 0 3
MONTH TO DATE 64 16 48 7
SINCE SEP 1 219 157 62 262
SINCE JAN 1 1280 1173 107 1525
..................................................................
WIND (MPH)
HIGHEST WIND SPEED 10 HIGHEST WIND DIRECTION N (350)
HIGHEST GUST SPEED 15 HIGHEST GUST DIRECTION N (340)
AVERAGE WIND SPEED 3.8
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 92 500 AM
LOWEST 30 400 PM
AVERAGE 61
..........................................................
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 68 85 2016
MINIMUM TEMPERATURE (F) 43 27 1982
1976
SUNRISE AND SUNSET
OCTOBER 18 2017.......SUNRISE 723 AM EDT SUNSET 627 PM EDT
OCTOBER 19 2017.......SUNRISE 724 AM EDT SUNSET 625 PM EDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$