Climatological Report (Monthly)
Issued by NWS Sterling, VA
Issued by NWS Sterling, VA
937 CXUS51 KLWX 041529 CLMDCA CLIMATE REPORT NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 1029 AM EST THU JAN 04 2024 ................................... ...THE WASHINGTON NATIONAL DC CLIMATE SUMMARY FOR THE MONTH OF DECEMBER 2023... CLIMATE NORMAL PERIOD: 1991 TO 2020 CLIMATE RECORD PERIOD: 1871 TO 2024 WEATHER OBSERVED NORMAL DEPART LAST YEAR`S VALUE DATE(S) VALUE FROM VALUE NORMAL .............................................................. TEMPERATURE (F) RECORD HIGH 79 12/07/1998 LOW -13 12/31/1880 HIGHEST 63 12/10 66 -3 65 LOWEST 29 12/14 17 12 9 12/20 AVG. MAXIMUM 53.1 48.8 4.3 48.5 AVG. MINIMUM 38.0 34.5 3.5 31.7 MEAN 45.5 41.7 3.8 40.1 DAYS MAX >= 90 0 0.0 0.0 0 DAYS MAX <= 32 0 1.3 -1.3 1 DAYS MIN <= 32 6 13.3 -7.3 16 DAYS MIN <= 0 0 0.0 0.0 0 PRECIPITATION (INCHES) RECORD MAXIMUM 7.56 1901 MINIMUM 0.19 1889 TOTALS 6.43 3.41 3.02 3.86 DAILY AVG. 0.21 0.11 0.10 0.12 DAYS >= .01 11 10.1 0.9 7 DAYS >= .10 8 6.4 1.6 6 DAYS >= .50 4 2.7 1.3 2 DAYS >= 1.00 3 0.6 2.4 2 GREATEST 24 HR. TOTAL 2.41 12/17 TO 12/18 1.88 STORM TOTAL 1.92 1.88 (MM/DD(HH)) SNOWFALL (INCHES) RECORDS TOTAL 16.6 2009 TOTALS 0.1 1.7 -1.6 T SINCE 7/1 0.1 1.8 -1.7 MM DAYS >= TRACE 2 1.3 0.7 1 DAYS >= 1.0 0 0.5 -0.5 0 GREATEST SNOW DEPTH 0 0 DEGREE DAYS HEATING TOTAL 597 724 -127 766 SINCE 7/1 1186 1370 -184 MM COOLING TOTAL 0 0 0 0 SINCE 1/1 1710 1737 -27 MM .............................................................. WIND (MPH) AVERAGE WIND SPEED 6.6 HIGHEST WIND SPEED/DIRECTION 31/340 31/320 HIGHEST GUST SPEED/DIRECTION 52/310 SKY COVER AVERAGE SKY COVER 0.69 AVERAGE RH (PERCENT) 68 WEATHER CONDITIONS. NUMBER OF DAYS WITH THUNDERSTORM 0 MIXED PRECIP 0 HEAVY RAIN 5 RAIN 7 LIGHT RAIN 12 FREEZING RAIN 0 LT FREEZING RAIN 0 HAIL 0 HEAVY SNOW 0 SNOW 0 LIGHT SNOW 1 SLEET 1 FOG 12 FOG W/VIS <= 1/4 MILE 5 HAZE 0 - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$