Climatological Report (Monthly)
Issued by NWS Sterling, VA
Issued by NWS Sterling, VA
000 CXUS51 KLWX 121744 CCA CLMDCA CLIMATE REPORT...CORRECTED NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 144 PM EDT FRI MAY 12 2023 ................................... ...THE WASHINGTON NATIONAL DC CLIMATE SUMMARY FOR THE MONTH OF APRIL 2023... CLIMATE NORMAL PERIOD: 1991 TO 2020 CLIMATE RECORD PERIOD: 1871 TO 2023 WEATHER OBSERVED NORMAL DEPART LAST YEAR`S VALUE DATE(S) VALUE FROM VALUE NORMAL .............................................................. TEMPERATURE (F) RECORD HIGH 95 04/17/2002 04/18/1976 04/23/1960 LOW 15 04/01/1923 HIGHEST 88 04/13 86 2 86 04/21 LOWEST 40 04/09 33 7 39 AVG. MAXIMUM 72.9 68.0 4.9 66.6 AVG. MINIMUM 51.3 48.4 2.9 47.3 MEAN 62.1 58.2 3.9 56.9 DAYS MAX >= 90 0 0.4 -0.4 0 DAYS MAX <= 32 0 0.0 0.0 0 DAYS MIN <= 32 0 0.5 -0.5 0 DAYS MIN <= 0 0 0.0 0.0 0 PRECIPITATION (INCHES) RECORD MAXIMUM 9.13 1889 MINIMUM 0.03 1985 TOTALS 3.55 3.21 0.34 3.82 DAILY AVG. 0.12 0.11 0.01 0.13 DAYS >= .01 10 10.8 -0.8 9 DAYS >= .10 5 6.4 -1.4 7 DAYS >= .50 4 2.2 1.8 4 DAYS >= 1.00 1 0.7 0.3 0 GREATEST 24 HR. TOTAL 1.55 04/28 TO 04/29 1.68 STORM TOTAL 1.53 0.91 (MM/DD(HH)) SNOWFALL (INCHES) RECORDS TOTAL 5.5 1924 TOTALS T 0.0 0.0 0.0 SINCE 7/1 0.4 13.7 -13.3 MM DAYS >= TRACE 1 0.0 1.0 0 DAYS >= 1.0 0 0.0 0.0 0 GREATEST SNOW DEPTH 0 0 DEGREE DAYS HEATING TOTAL 146 236 -90 259 SINCE 7/1 3125 3703 -578 MM COOLING TOTAL 65 32 33 26 SINCE 1/1 67 35 32 MM .............................................................. WIND (MPH) AVERAGE WIND SPEED 9.2 HIGHEST WIND SPEED/DIRECTION 40/310 HIGHEST GUST SPEED/DIRECTION 59/300 SKY COVER AVERAGE SKY COVER 0.60 AVERAGE RH (PERCENT) 58 WEATHER CONDITIONS. NUMBER OF DAYS WITH THUNDERSTORM 5 MIXED PRECIP 0 HEAVY RAIN 4 RAIN 5 LIGHT RAIN 13 FREEZING RAIN 0 LT FREEZING RAIN 0 HAIL 0 HEAVY SNOW 0 SNOW 0 LIGHT SNOW 0 SLEET 1 FOG 7 FOG W/VIS <= 1/4 MILE 0 HAZE 1 - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. && APR 2023 ENDED AS THE THIRD WARMEST APRIL ON RECORD. IT WAS ALSO VERY DRY FOR MUCH OF THE MONTH. THE FIRST THREE WEEKS OF THE MONTH WERE EXCEPTIONALLY DRY WITH MOST OF THE RAINFALL FALLING THE LAST THREE DAYS OF THE MONTH. A PERSISTENT UPPER LEVEL RIDGE WAS THE CULPRIT FOR THE VERY WARM AND DRY CONDITIONS. $$