647 CDUS41 KLWX 310533 CLIDCA CLIMATE REPORT NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 1233 AM EST MON DEC 31 2012 ................................... ...THE WASHINGTON NATIONAL DC CLIMATE SUMMARY FOR DECEMBER 30 2012... CLIMATE NORMAL PERIOD 1981 TO 2010 CLIMATE RECORD PERIOD 1871 TO 2012 WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST VALUE (LST) VALUE VALUE FROM YEAR NORMAL .................................................................. TEMPERATURE (F) YESTERDAY MAXIMUM 42 211 PM 70 1990 44 -2 54 MINIMUM 32 1159 PM -7 1880 30 2 35 AVERAGE 37 37 0 45 PRECIPITATION (IN) YESTERDAY 0.00 1.81 1877 0.08 -0.08 0.00 MONTH TO DATE 3.03 2.97 0.06 4.90 SINCE DEC 1 3.03 2.97 0.06 4.90 SINCE JAN 1 32.45 39.66 -7.21 46.89 SNOWFALL (IN) YESTERDAY 0.0 1.3 1935 0.1 -0.1 MONTH TO DATE 0.2 2.2 -2.0 SINCE JUL 1 0.2 2.7 -2.5 SNOW DEPTH 0 DEGREE DAYS HEATING YESTERDAY 28 28 0 20 MONTH TO DATE 573 756 -183 602 SINCE DEC 1 573 756 -183 602 SINCE JUL 1 1284 1451 -167 1197 COOLING YESTERDAY 0 0 0 0 MONTH TO DATE 0 0 0 0 SINCE DEC 1 0 0 0 0 SINCE JAN 1 1975 1549 426 1925 .................................................................. WIND (MPH) HIGHEST WIND SPEED 36 HIGHEST WIND DIRECTION NW (310) HIGHEST GUST SPEED 49 HIGHEST GUST DIRECTION NW (330) AVERAGE WIND SPEED 15.0 SKY COVER POSSIBLE SUNSHINE MM AVERAGE SKY COVER 0.6 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. NO SIGNIFICANT WEATHER WAS OBSERVED. RELATIVE HUMIDITY (PERCENT) HIGHEST 59 1200 AM LOWEST 34 1200 PM AVERAGE 47 .......................................................... THE WASHINGTON NATIONAL DC CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 44 70 1965 MINIMUM TEMPERATURE (F) 29 -13 1880 SUNRISE AND SUNSET DECEMBER 31 2012......SUNRISE 727 AM EST SUNSET 456 PM EST JANUARY 1 2013.......SUNRISE 727 AM EST SUNSET 457 PM EST - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$