253 CDUS41 KLWX 150529 CLIDCA CLIMATE REPORT NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 128 AM EDT SAT SEP 15 2012 ................................... ...THE WASHINGTON NATIONAL DC CLIMATE SUMMARY FOR SEPTEMBER 14 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 83 421 PM 94 1981 80 3 87 1980 1915 MINIMUM 64 618 AM 46 1911 63 1 68 AVERAGE 74 72 2 78 PRECIPITATION (IN) YESTERDAY 0.00 4.07 1966 0.13 -0.13 0.00 MONTH TO DATE 2.44 1.61 0.83 7.11 SINCE SEP 1 2.44 1.61 0.83 7.11 SINCE JAN 1 21.15 28.01 -6.86 34.41 SNOWFALL (IN) YESTERDAY 0.0 MM MM 0.0 0.0 MONTH TO DATE 0.0 0.0 0.0 SINCE JUL 1 0.0 0.0 0.0 SNOW DEPTH 0 DEGREE DAYS HEATING YESTERDAY 0 0 0 0 MONTH TO DATE 0 0 0 0 SINCE SEP 1 0 0 0 0 SINCE JUL 1 0 0 0 0 COOLING YESTERDAY 9 7 2 13 MONTH TO DATE 163 127 36 134 SINCE SEP 1 163 127 36 134 SINCE JAN 1 1864 1438 426 1836 .................................................................. WIND (MPH) HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION S (180) HIGHEST GUST SPEED 20 HIGHEST GUST DIRECTION NE (30) AVERAGE WIND SPEED 4.6 SKY COVER POSSIBLE SUNSHINE MM AVERAGE SKY COVER 0.7 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. NO SIGNIFICANT WEATHER WAS OBSERVED. RELATIVE HUMIDITY (PERCENT) HIGHEST 87 600 AM LOWEST 45 200 PM AVERAGE 66 .......................................................... THE WASHINGTON NATIONAL DC CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 80 97 1930 1927 MINIMUM TEMPERATURE (F) 63 43 1902 1899 SUNRISE AND SUNSET SEPTEMBER 15 2012.....SUNRISE 650 AM EDT SUNSET 716 PM EDT SEPTEMBER 16 2012.....SUNRISE 651 AM EDT SUNSET 714 PM EDT - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$