638
CDUS41 KLWX 150534
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
1234 AM EST SUN DEC 15 2024
...............................
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR DECEMBER 14 2024
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1960 TO 2024
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...............................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 41 1:52 PM 69 2015 47 -6 50
MINIMUM 24 6:52 AM 3 1989 29 -5 23
AVERAGE 33 38 -5 37
PRECIPITATION (IN)
YESTERDAY 0.00 1.24 2020 0.11 -0.11 0.00
MONTH TO DATE 1.59 1.59 0.00 2.46
SINCE DEC 1 1.59 1.59 0.00 2.46
SINCE JAN 1 32.62 41.53 -8.91 31.49
SNOWFALL (IN)
YESTERDAY 0.0 3.6 2003 0.1 -0.1 0.0
MONTH TO DATE T 1.1 -1.1 0.5
SINCE DEC 1 T 1.1 -1.1 0.5
SINCE JUL 1 T 1.4 -1.4 0.5
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 32 27 5 28
MONTH TO DATE 398 357 41 308
SINCE DEC 1 398 357 41 308
SINCE JUL 1 1066 1257 -191 1079
COOLING
YESTERDAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE DEC 1 0 0 0 0
SINCE JAN 1 1586 1231 355 1380
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 9 HIGHEST WIND DIRECTION E (90)
HIGHEST GUST SPEED 12 HIGHEST GUST DIRECTION SE (120)
AVERAGE WIND SPEED 3.8
SKY COVER
AVERAGE SKY COVER 0.4
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 78 3:00 AM
LOWEST 31 2:00 PM
AVERAGE 55
......................................................
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 47 71 1971
MINIMUM TEMPERATURE (F) 29 5 1989
SUNRISE AND SUNSET
DECEMBER 15 2024......SUNRISE 7:22 AM EST SUNSET 4:49 PM EST
DECEMBER 16 2024......SUNRISE 7:22 AM EST SUNSET 4:49 PM EST
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page