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. $$