CDUS41 KLWX 180647 CLIDCA CLIMATE REPORT NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 247 AM EDT MON MAY 18 2026 ................................... ...THE WASHINGTON NATIONAL DC CLIMATE SUMMARY FOR MAY 17 2026... 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) YESTERDAY MAXIMUM 89 3:59 PM 92 1877 77 12 87 1896 1974 MINIMUM 64 5:40 AM 40 1875 58 6 66 1895 1956 AVERAGE 77 67 10 77 PRECIPITATION (IN) YESTERDAY T 1.24 1947 0.13 -0.13 T MONTH TO DATE 0.93 2.14 -1.21 4.75 SINCE MAR 1 4.38 8.85 -4.47 10.27 SINCE JAN 1 10.11 14.33 -4.22 15.06 SNOWFALL (IN) YESTERDAY 0.0 MM MM 0.0 0.0 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 YESTERDAY 0 2 -2 0 MONTH TO DATE 65 45 20 9 SINCE MAR 1 625 825 -200 521 SINCE JUL 1 3844 3748 96 3261 COOLING YESTERDAY 12 4 8 12 MONTH TO DATE 35 51 -16 92 SINCE MAR 1 137 86 51 184 SINCE JAN 1 137 86 51 184 ................................................................... WIND (MPH) HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION W (290) HIGHEST GUST SPEED 21 HIGHEST GUST DIRECTION N (350) AVERAGE WIND SPEED 5.5 SKY COVER AVERAGE SKY COVER 0.5 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. LIGHT RAIN RELATIVE HUMIDITY (PERCENT) HIGHEST 87 6:00 AM LOWEST 36 4:00 PM AVERAGE 62 .......................................................... THE WASHINGTON NATIONAL DC CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 77 96 1877 MINIMUM TEMPERATURE (F) 59 40 1973 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. $$