082 CDUS41 KLWX 200530 CLIDCA CLIMATE REPORT NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 1229 AM EST TUE DEC 20 2016 ................................... ...THE WASHINGTON NATIONAL DC CLIMATE SUMMARY FOR DECEMBER 19 2016... CLIMATE NORMAL PERIOD 1981 TO 2010 CLIMATE RECORD PERIOD 1871 TO 2016 WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST VALUE (LST) VALUE VALUE FROM YEAR NORMAL .................................................................. TEMPERATURE (F) YESTERDAY MAXIMUM 39 213 PM 74 1924 46 -7 45 MINIMUM 31 1159 PM 6 1884 32 -1 30 AVERAGE 35 39 -4 38 PRECIPITATION (IN) YESTERDAY 0.00 1.34 2009 0.10 -0.10 0.00 MONTH TO DATE 1.83 1.97 -0.14 1.62 SINCE DEC 1 1.83 1.97 -0.14 1.62 SINCE JAN 1 30.92 38.66 -7.74 41.80 SNOWFALL (IN) YESTERDAY 0.0 15.0 2009 0.0 0.0 MONTH TO DATE T 1.2 -1.2 SINCE JUL 1 T 1.7 -1.7 SNOW DEPTH 0 DEGREE DAYS HEATING YESTERDAY 30 26 4 27 MONTH TO DATE 441 453 -12 293 SINCE DEC 1 441 453 -12 293 SINCE JUL 1 928 1148 -220 828 COOLING YESTERDAY 0 0 0 0 MONTH TO DATE 0 0 0 0 SINCE DEC 1 0 0 0 0 SINCE JAN 1 1994 1549 445 1998 .................................................................. WIND (MPH) HIGHEST WIND SPEED 17 HIGHEST WIND DIRECTION N (10) HIGHEST GUST SPEED 21 HIGHEST GUST DIRECTION N (20) AVERAGE WIND SPEED 9.6 SKY COVER POSSIBLE SUNSHINE MM AVERAGE SKY COVER 0.8 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. NO SIGNIFICANT WEATHER WAS OBSERVED. RELATIVE HUMIDITY (PERCENT) HIGHEST 59 500 AM LOWEST 40 100 PM AVERAGE 50 .......................................................... THE WASHINGTON NATIONAL DC CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 45 66 1889 1877 MINIMUM TEMPERATURE (F) 31 5 1942 SUNRISE AND SUNSET DECEMBER 20 2016......SUNRISE 723 AM EST SUNSET 449 PM EST DECEMBER 21 2016......SUNRISE 723 AM EST SUNSET 450 PM EST - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$