244
CDUS41 KLWX 182140
CLIDCA
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
540 PM EDT MON MAY 18 2026
...............................
..THE WASHINGTON NATIONAL DC CLIMATE SUMMARY FOR MAY 18 2026
VALID TODAY AS OF 0500 PM LOCAL TIME.
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1871 TO 2026
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...............................................................
TEMPERATURE (F)
TODAY
MAXIMUM 93 3:59 PM 96 1877 77 16 78
MINIMUM 67 4:23 AM 40 1973 59 8 68
AVERAGE 80 68 12 73
PRECIPITATION (IN)
TODAY 0.00 1.38 1936 0.13 -0.13 0.00
MONTH TO DATE 0.93 2.27 -1.34 4.75
SINCE MAR 1 4.38 8.98 -4.60 10.27
SINCE JAN 1 10.11 14.46 -4.35 15.06
SNOWFALL (IN)
TODAY 0.0 MM MM 0.0 MM 0.0
MONTH TO DATE 0.0 0.0 0.0 0.0
SINCE MAR 1 1.0 2.0 -1.0 0.0
SINCE JUL 1 10.6 13.7 -3.1 14.9
SNOW DEPTH 0
DEGREE DAYS
HEATING
TODAY 0 2 -2 0
MONTH TO DATE 65 47 18 9
SINCE MAR 1 625 827 -202 521
SINCE JUL 1 3844 3750 94 3261
COOLING
TODAY 15 4 11 8
MONTH TO DATE 50 55 -5 100
SINCE MAR 1 152 90 62 192
SINCE JAN 1 152 90 62 192
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION S (170)
HIGHEST GUST SPEED 15 HIGHEST GUST DIRECTION S (170)
AVERAGE WIND SPEED 6.4
SKY COVER
AVERAGE SKY COVER 0.4
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 90 3:00 AM
LOWEST 40 4:00 PM
AVERAGE 65
......................................................
THE WASHINGTON NATIONAL DC CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 77 96 1911
1997
MINIMUM TEMPERATURE (F) 59 43 1976
SUNRISE AND SUNSET
MAY 18 2026...........SUNRISE 5:53 AM EDT SUNSET 8:16 PM EDT
MAY 19 2026...........SUNRISE 5:52 AM EDT SUNSET 8:17 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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