Climatological Report (Monthly)
Issued by NWS Buffalo, NY

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000 CXUS51 KBUF 011512 CLMROC CLIMATE REPORT NATIONAL WEATHER SERVICE BUFFALO NY 854 AM EDT SUN SEP 1 2019 ................................... ...THE ROCHESTER NY CLIMATE SUMMARY FOR THE MONTH OF AUGUST 2019... CLIMATE NORMAL PERIOD 1981 TO 2010 CLIMATE RECORD PERIOD 1871 TO 2019 WEATHER OBSERVED NORMAL DEPART LAST YEAR`S VALUE DATE(S) VALUE FROM VALUE DATE(S) NORMAL ................................................................ TEMPERATURE (F) RECORD HIGH 99 08/28/1948 08/26/1948 LOW 36 08/30/1965 HIGHEST 90 08/06 94 08/06 LOWEST 51 08/31 53 08/23 08/25 AVG. MAXIMUM 80.9 79.1 1.8 82.7 AVG. MINIMUM 59.4 59.5 -0.1 64.6 MEAN 70.1 69.3 0.8 73.6 DAYS MAX >= 90 1 1.4 -0.4 4 DAYS MAX <= 32 0 0.0 0.0 0 DAYS MIN <= 32 0 0.0 0.0 0 DAYS MIN <= 0 0 0.0 0.0 0 PRECIPITATION (INCHES) RECORD MAXIMUM 7.26 1886 MINIMUM 0.36 1876 TOTALS 1.74 3.47 -1.73 2.67 DAYS >= .01 9 12 DAYS >= .10 6 5 DAYS >= .50 1 3 DAYS >= 1.00 0 0 GREATEST 24 HR. TOTAL 0.52 08/17 TO 08/17 SNOWFALL (INCHES) RECORDS TOTAL MM MM TOTALS 0.0 0.0 0.0 0.0 SINCE 7/1 0.0 0.0 0.0 0.0 SNOWDEPTH AVG. 0 MM MM 0 DAYS >= 1.0 0 0.0 0.0 0 GREATEST SNOW DEPTH 0 MM 0 MM 24 HR TOTAL 0.0 DEGREE_DAYS HEATING TOTAL 5 22 -17 0 SINCE 7/1 5 34 -29 0 COOLING TOTAL 173 155 18 273 SINCE 1/1 557 484 73 800 ................................................................. WIND (MPH) AVERAGE WIND SPEED 7.0 HIGHEST WIND SPEED/DIRECTION 31/310 HIGHEST GUST SPEED/DIRECTION 43/340 DATE 08/06 SKY COVER POSSIBLE SUNSHINE (PERCENT) MM AVERAGE SKY COVER 0.50 NUMBER OF DAYS FAIR 4 NUMBER OF DAYS PC 23 NUMBER OF DAYS CLOUDY 4 AVERAGE RH (PERCENT) 65 WEATHER CONDITIONS. NUMBER OF DAYS WITH THUNDERSTORM 8 MIXED PRECIP 0 HEAVY RAIN 2 RAIN 4 LIGHT RAIN 12 FREEZING RAIN 0 LT FREEZING RAIN 0 HAIL 0 HEAVY SNOW 0 SNOW 0 LIGHT SNOW 0 SLEET 0 FOG 9 FOG W/VIS <= 1/4 MILE 0 HAZE 2 - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. && ...TYPICAL AUGUST FOR WESTERN NEW YORK... AUGUST 2019 DID NOT FEATURE ANY EXTREME TEMPERATURES, BUT RATHER A NEAR NORMAL TEMPERATURE MONTH WITH OCCASIONAL WARM AND COOL SPELLS. RAIN WAS LIMITED IN THE METRO AREA THROUGH THE MONTH, WITH STORMS FAVORING EITHER NEAR THE SHORELINE OR ACROSS THE VALLEY AND INTO THE FINGER LAKES AREA. THE TEMPERATURE AVERAGED 70.1F THIS MONTH WHICH ABOUT A DEGREE ABOVE NORMAL. THERE WERE JUST 6 DAYS THAT STRAYED 5 OR MORE DEGREES FROM NORMAL. THERE WERE 16 DAYS THAT FINISHED ABOVE TEMPERATURE NORMALS, AND 13 THAT FINISHED BELOW NORMAL. THE WARMEST TEMPERATURE WAS 90F DEGREES THIS MONTH, OCCURING ON THE 6TH. THIS WAS THE 6TH 90F DEGREE DAY THIS YEAR, WHICH IS CONSIDERABLY LOWER FROM THE 2018 TOTAL OF 22. PRECIPITATION WAS 1.74 INCHES WHICH IS OVER AN INCH AND A HALF BELOW NORMAL. THIS AMOUNT OF PRECIPITATION, COMBINED WITH THE SLIGHTLY DRIER THAN NORMAL JULY BROUGHT ABNORMALLY DRY CONDITIONS TO THE ROCHESTER METRO AREA. THE WETTEST DAY WAS THE 17TH WHEN STORMS THAT FORMED ALONG A LAKE BREEZE BOUNDARY ROLLED ACROSS THE AIRPORT. AUGUST STARTED PLEASANT ACROSS WESTERN NEW YORK, WITH HIGH PRESSURE BRINGING COMFORTABLE LEVELS OF HUMIDITY TO GO ALONG WITH SUMMER`S WARMTH. THERE WAS VERY LITTLE WEATHER OF INTEREST THE FIRST WEEK OF THE MONTH. ON THE 8TH, A WIDESPREAD SEVERE THUNDERSTORM EVENT STARTED EARLY, WITH DAMAGING WINDS REACHING THE LAKE ERIE SHORELINE BY LATE MORNING. THESE THUNDERSTORMS, WITH DAMAGING WINDS, REACHED THE GENESEE VALLEY BY THE NOONTIME HOUR. BEHIND THIS EVENT, A COOLER AIRMASS SETTLED ACROSS WESTERN NEW YORK WITH A RETURN TO LOWER HUMIDITY VALUES AND OVERNIGHT LOWS DIPPING INTO THE LOW TO MID 50S ON THE 10TH-11TH. ON THE 15TH OF THE MONTH A STRETCH OF DAILY SEVERE WEATHER BEGAN ACROSS WESTERN NEW YORK...WITH MULTIPLE SEVERE THUNDERSTORMS EACH AFTERNOON AND EVENING THROUGH THE 18TH. AN UPPER LEVEL TROUGH WAS FOUND OVER THE GREAT LAKES THIS PERIOD, WITH MULTIPLE SHORTWAVES FORCING AFTERNOON AND EVENING CONVECTION ACROSS WESTERN NEW YORK. STORMS ON THE 15TH WERE FOCUSED MORE TOWARDS THE GENESEE VALLEY WHILE ON THE 16TH AND 17TH THE PRIMARY FOCUS FOR SEVERE STORMS WAS UPON A LAKE BREEZE BOUNDARY TO THE SOUTH OF LAKE ONTARIO. STORMS ON THE 18TH FEATURED DAMAGING CONVECTIVE WIND GUSTS AS WELL AS FLOODING RAINS IN THE GENESEE VALLEY AND FINGER LAKES REGION. BY THE 22ND THE WEATHER FINALLY QUIETED DOWN AND ANOTHER PLEASANT STRETCH WITH COOL, BUT COMFORTABLE SUMMER TEMPERATURES ENSUED WITH LOW LEVELS OF HUMIDITY. OVER NIGHT LOWS DIPPED INTO THE LOWER 50S SEVERAL DAYS...HINTING AT A TOUCH OF FALL IN THE AIR. THE END OF THE MONTH WARMED SOME, WITH AFTERNOONS IN THE 70S AND A FEW DAYS OF LIGHT RAIN AND MODERATE LEVELS OF HUMIDITY. WINDS WERE NEAR NORMAL FOR THE MONTH AND THE STRONGEST GUST THIS MONTH OCCURRED ON THE 6TH WHEN WINDS GUSTED TO 43 MPH AS A COLD FRONT MOVED THROUGH THE REGION. THE WATER TEMPERATURE ON LAKE ONTARIO, MEASURED AT ROCHESTER, PEAKED AT 77F THIS MONTH. IN ALL A FAIRLY TYPICAL, BUT DRY AUGUST, WITH SEVERAL BOUTS OF SEVERE STORMS AND NO EXTREMES IN TEMPERATURE. && THOMAS $$

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