444 CDUS41 KLWX 180524 CLIDCA CLIMATE REPORT NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 123 AM EDT FRI SEP 18 2015 ................................... ...THE WASHINGTON NATIONAL DC CLIMATE SUMMARY FOR SEPTEMBER 17 2015... CLIMATE NORMAL PERIOD 1981 TO 2010 CLIMATE RECORD PERIOD 1871 TO 2015 WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST VALUE (LST) VALUE VALUE FROM YEAR NORMAL .................................................................. TEMPERATURE (F) YESTERDAY MAXIMUM 86 317 PM 96 1991 79 7 79 MINIMUM 63 604 AM 44 1923 62 1 59 AVERAGE 75 71 4 69 PRECIPITATION (IN) YESTERDAY 0.00 3.26 1876 0.14 -0.14 0.00 MONTH TO DATE 0.27 2.02 -1.75 0.43 SINCE SEP 1 0.27 2.02 -1.75 0.43 SINCE JAN 1 33.16 28.42 4.74 34.10 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 1 -1 0 MONTH TO DATE 0 2 -2 0 SINCE SEP 1 0 2 -2 0 SINCE JUL 1 0 2 -2 0 COOLING YESTERDAY 10 6 4 4 MONTH TO DATE 216 147 69 204 SINCE SEP 1 216 147 69 204 SINCE JAN 1 1890 1458 432 1597 .................................................................. WIND (MPH) HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION S (170) HIGHEST GUST SPEED 14 HIGHEST GUST DIRECTION S (170) AVERAGE WIND SPEED 5.2 SKY COVER POSSIBLE SUNSHINE MM AVERAGE SKY COVER 0.2 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. NO SIGNIFICANT WEATHER WAS OBSERVED. RELATIVE HUMIDITY (PERCENT) HIGHEST 93 600 AM LOWEST 32 200 PM AVERAGE 63 .......................................................... THE WASHINGTON NATIONAL DC CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 79 91 1927 1921 1898 MINIMUM TEMPERATURE (F) 62 45 1937 SUNRISE AND SUNSET SEPTEMBER 18 2015.....SUNRISE 652 AM EDT SUNSET 712 PM EDT SEPTEMBER 19 2015.....SUNRISE 653 AM EDT SUNSET 710 PM EDT - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$