Climatological Report (Monthly)
Issued by NWS Raleigh/Durham, NC

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000 CXUS52 KRAH 011357 CLMRDU CLIMATE REPORT NATIONAL WEATHER SERVICE RALEIGH NC 953 AM EDT SUN OCT 1 2017 ................................... ...THE RALEIGH-DURHAM INTL AIRPORT CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 2017... CLIMATE NORMAL PERIOD 1981 TO 2010 CLIMATE RECORD PERIOD 1887 TO 2017 WEATHER OBSERVED NORMAL DEPART LAST YEAR`S VALUE DATE(S) VALUE FROM VALUE NORMAL ............................................................. TEMPERATURE (F) RECORD HIGH 104 09/06/1954 LOW 37 09/23/1983 09/26/1950 HIGHEST 94 09/28 96 LOWEST 51 09/10 58 09/08 AVG. MAXIMUM 82.8 82.1 0.7 85.5 AVG. MINIMUM 61.0 61.7 -0.7 67.3 MEAN 71.9 71.9 0.0 76.4 DAYS MAX >= 90 4 12 DAYS MAX <= 32 0 0 DAYS MIN <= 32 0 0 DAYS MIN <= 0 0 0 PRECIPITATION (INCHES) RECORD MAXIMUM 21.79 1999 TOTALS 2.28 4.36 -2.08 4.61 DAYS >= .01 5 DAYS >= .10 3 DAYS >= .50 3 DAYS >= 1.00 1 GREATEST 24 HR. TOTAL 1.06 09/01 TO 09/01 DEGREE_DAYS HEATING TOTAL 7 20 -13 0 SINCE 7/1 7 21 -14 0 COOLING TOTAL 221 227 -6 349 SINCE 1/1 1853 1668 185 .............................................................. WIND (MPH) AVERAGE WIND SPEED 5.6 HIGHEST WIND SPEED/DIRECTION 24/050 DATE 09/21 HIGHEST GUST SPEED/DIRECTION 34/050 DATE 09/21 SKY COVER POSSIBLE SUNSHINE (PERCENT) MM AVERAGE SKY COVER 0.50 NUMBER OF DAYS FAIR 13 NUMBER OF DAYS PC 11 NUMBER OF DAYS CLOUDY 6 AVERAGE RH (PERCENT) 74 WEATHER CONDITIONS. NUMBER OF DAYS WITH THUNDERSTORM 3 MIXED PRECIP 0 HEAVY RAIN 3 RAIN 3 LIGHT RAIN 6 FREEZING RAIN 0 LT FREEZING RAIN 0 HAIL 0 HEAVY SNOW 0 SNOW 0 LIGHT SNOW 0 SLEET 0 FOG 16 FOG W/VIS <= 1/4 MILE 2 HAZE 0 - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. && NO RECORDS SET AT RDU. $$

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