491
CDUS41 KLWX 180524
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
123 AM EDT THU OCT 18 2018
...............................
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR OCTOBER 17 2018
CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1960 TO 2018
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
..............................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 68 119 PM 84 2016 68 0 63
MINIMUM 47 631 AM 31 1982 43 4 36
1981
AVERAGE 58 56 2 50
PRECIPITATION (IN)
YESTERDAY 0.00 1.11 1975 0.10 -0.10 0.00
MONTH TO DATE 1.21 1.78 -0.57 1.48
SINCE SEP 1 8.57 5.70 2.87 3.23
SINCE JAN 1 51.83 33.70 18.13 36.23
SNOWFALL (IN)
YESTERDAY 0.0 MM MM 0.0 0.0
MONTH TO DATE 0.0 0.0 0.0
SINCE JUL 1 0.0 0.0 0.0
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 7 10 -3 15
MONTH TO DATE 56 130 -74 53
SINCE SEP 1 69 186 -117 93
SINCE JUL 1 69 188 -119 94
COOLING
YESTERDAY 0 0 0 0
MONTH TO DATE 97 16 81 64
SINCE SEP 1 338 157 181 219
SINCE JAN 1 1522 1173 349 1280
..............................................................
WIND (MPH)
HIGHEST WIND SPEED 26 HIGHEST WIND DIRECTION NW (300)
HIGHEST GUST SPEED 33 HIGHEST GUST DIRECTION NW (300)
AVERAGE WIND SPEED 7.4
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.6
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 100 400 AM
LOWEST 34 100 PM
AVERAGE 67
......................................................
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 2018.......SUNRISE 722 AM EDT SUNSET 627 PM EDT
OCTOBER 19 2018.......SUNRISE 723 AM EDT SUNSET 626 PM EDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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