National Weather Service Text Product
AFOS product CLIIAD
Dates interpreted at 00:00 UTCDisplaying AFOS PIL: CLIIAD
Product Timestamp: 2017-10-16 05:30 UTC
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940
CDUS41 KLWX 160530
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
130 AM EDT MON OCT 16 2017
...................................
...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR OCTOBER 15 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 79 353 PM 88 1989 68 11 67
MINIMUM 61 234 AM 28 1987 44 17 36
AVERAGE 70 56 14 52
PRECIPITATION (IN)
YESTERDAY T 1.30 2014 0.10 -0.10 0.00
MONTH TO DATE 1.40 1.58 -0.18 0.40
SINCE SEP 1 3.15 5.50 -2.35 2.95
SINCE JAN 1 36.15 33.50 2.65 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 0 9 -9 13
MONTH TO DATE 32 110 -78 89
SINCE SEP 1 72 166 -94 95
SINCE JUL 1 73 168 -95 95
COOLING
YESTERDAY 5 0 5 0
MONTH TO DATE 64 16 48 4
SINCE SEP 1 219 157 62 259
SINCE JAN 1 1280 1173 107 1522
..................................................................
WIND (MPH)
HIGHEST WIND SPEED 21 HIGHEST WIND DIRECTION NW (330)
HIGHEST GUST SPEED 27 HIGHEST GUST DIRECTION SW (210)
AVERAGE WIND SPEED 9.6
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 100 1200 AM
LOWEST 64 500 PM
AVERAGE 82
..........................................................
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 68 85 1989
MINIMUM TEMPERATURE (F) 44 30 1986
SUNRISE AND SUNSET
OCTOBER 16 2017.......SUNRISE 721 AM EDT SUNSET 629 PM EDT
OCTOBER 17 2017.......SUNRISE 722 AM EDT SUNSET 628 PM EDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$