National Weather Service Text Product
AFOS product CLIIAD
Dates interpreted at 00:00 UTCDisplaying AFOS PIL: CLIIAD
Product Timestamp: 2017-10-19 05:22 UTC
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741
CDUS41 KLWX 190522
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
122 AM EDT THU OCT 19 2017
...................................
...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR OCTOBER 18 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 70 329 PM 85 2016 68 2 85
MINIMUM 36 641 AM 27 1982 43 -7 56
1976
AVERAGE 53 55 -2 71
PRECIPITATION (IN)
YESTERDAY 0.00 2.09 1996 0.10 -0.10 0.00
MONTH TO DATE 1.48 1.88 -0.40 0.40
SINCE SEP 1 3.23 5.80 -2.57 2.95
SINCE JAN 1 36.23 33.80 2.43 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 12 10 2 0
MONTH TO DATE 65 140 -75 93
SINCE SEP 1 105 196 -91 99
SINCE JUL 1 106 198 -92 99
COOLING
YESTERDAY 0 0 0 6
MONTH TO DATE 64 16 48 13
SINCE SEP 1 219 157 62 268
SINCE JAN 1 1280 1173 107 1531
..................................................................
WIND (MPH)
HIGHEST WIND SPEED 10 HIGHEST WIND DIRECTION S (200)
HIGHEST GUST SPEED 13 HIGHEST GUST DIRECTION S (200)
AVERAGE WIND SPEED 2.8
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.1
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 100 300 AM
LOWEST 37 100 PM
AVERAGE 69
..........................................................
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 67 87 2016
MINIMUM TEMPERATURE (F) 43 25 1976
SUNRISE AND SUNSET
OCTOBER 19 2017.......SUNRISE 724 AM EDT SUNSET 625 PM EDT
OCTOBER 20 2017.......SUNRISE 725 AM EDT SUNSET 624 PM EDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$