Climatological Report (Monthly)
Issued by NWS Sterling, VA

Current Version | Previous Version | Text Only | Print | Product List | Glossary On
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25
000 CXUS51 KLWX 041059 CCA CLMDCA CLIMATE REPORT...CORRECTED NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 659 AM EDT TUE AUG 4 2015 ................................... ...THE WASHINGTON NATIONAL DC CLIMATE SUMMARY FOR THE MONTH OF JULY 2015... CLIMATE NORMAL PERIOD 1981 TO 2010 CLIMATE RECORD PERIOD 1871 TO 2015 WEATHER OBSERVED NORMAL DEPART LAST YEAR`S VALUE DATE(S) VALUE FROM VALUE NORMAL ............................................................. TEMPERATURE (F) RECORD HIGH 106 07/20/1930 LOW 52 07/04/1933 07/04/1907 07/31/1895 HIGHEST 98 07/19 97 1 LOWEST 66 07/16 61 5 07/03 AVG. MAXIMUM 89.1 88.4 0.7 88.0 AVG. MINIMUM 73.9 71.1 2.8 70.8 MEAN 81.5 79.8 1.7 DAYS MAX >= 90 14 12.4 1.6 DAYS MAX <= 32 0 0.0 0.0 DAYS MIN <= 32 0 0.0 0.0 DAYS MIN <= 0 0 0.0 0.0 PRECIPITATION (INCHES) RECORD MAXIMUM 11.06 1945 MINIMUM 0.82 1872 TOTALS 5.01 3.73 1.28 4.68 DAILY AVG. 0.16 0.12 0.04 DAYS >= .01 13 10.3 2.7 DAYS >= .10 5 6.3 -1.3 DAYS >= .50 5 3.0 2.0 DAYS >= 1.00 2 1.0 1.0 GREATEST 24 HR. TOTAL 1.30 07/01 TO 07/01 06/30 TO 07/01 07/01 TO 07/01 DEGREE_DAYS HEATING TOTAL 0 0 0 0 SINCE 7/1 0 0 0 0 COOLING TOTAL 520 457 63 453 SINCE 1/1 1225 905 320 994 .............................................................. WIND (MPH) AVERAGE WIND SPEED 6.8 HIGHEST WIND SPEED/DIRECTION 40/270 DATE 07/01 HIGHEST GUST SPEED/DIRECTION 51/270 DATE 07/01 SKY COVER POSSIBLE SUNSHINE (PERCENT) MM AVERAGE SKY COVER 0.60 NUMBER OF DAYS FAIR 3 NUMBER OF DAYS PC 17 NUMBER OF DAYS CLOUDY 11 AVERAGE RH (PERCENT) 65 WEATHER CONDITIONS. NUMBER OF DAYS WITH THUNDERSTORM 6 MIXED PRECIP 0 HEAVY RAIN 5 RAIN 5 LIGHT RAIN 16 FREEZING RAIN 0 LT FREEZING RAIN 0 HAIL 0 HEAVY SNOW 0 SNOW 0 LIGHT SNOW 0 SLEET 0 FOG 7 FOG W/VIS <= 1/4 MILE 1 HAZE 8 - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. && WASHINGTON DC...REAGAN NATIONAL AIRPORT... THE MONTHLY AVERAGE TEMPERATURE WAS ABOVE NORMAL. MONTHLY PRECIPITATION WAS ALSO ABOVE NORMAL...AND RANKED AS THE WETTEST JULY SINCE 2010. LAST MONTH HAD 14 DAYS WITH TEMPERATURES REACHING OR EXCEEDING 90 DEGREES...INCLUDING A STRETCH OF 8 CONSECUTIVE DAYS AT THE END OF THE MONTH. A RECORD DAILY HIGH MINIMUM TEMPERATURE OF 82 DEGREES WAS SET ON THE 20TH...BREAKING THE OLD RECORD OF 81 SET IN 1980. $$ DFH/SMZ ...CORRECTED FOR DATE OF ISSUANCE...

USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.