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Climatological Report (Monthly)
Issued by NWS Buffalo, NY
Issued by NWS Buffalo, NY
642 CXUS51 KBUF 020156 CLMBUF CLIMATE REPORT NATIONAL WEATHER SERVICE BUFFALO NY 1110 AM EDT THU AUG 01 2024 ................................... ...THE BUFFALO NY CLIMATE SUMMARY FOR THE MONTH OF JULY 2024... 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 DATE(S) NORMAL ................................................................ TEMPERATURE (F) RECORD HIGH 98 07/09/2020 LOW 43 07/11/1945 HIGHEST 89 07/05 91 07/06 07/28 07/29 LOWEST 54 07/01 58 07/08 07/02 07/30 07/31 AVG. MAXIMUM 83.1 80.2 2.9 81.2 AVG. MINIMUM 65.3 63.1 2.2 64.5 MEAN 74.2 71.7 2.5 72.8 DAYS MAX >= 90 0 1.5 -1.5 1 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 8.93 1992 MINIMUM 0.15 1933 TOTALS 2.87 3.23 -0.36 5.54 DAYS >= .01 10 13 DAYS >= .10 6 9 DAYS >= .50 2 4 DAYS >= 1.00 1 2 GREATEST 24 HR. TOTAL 1.56 07/15 TO 07/16 1.41 07/26 TO 07/27 SNOWFALL (INCHES) RECORDS TOTAL MM MM TOTALS 0.0 0.0 0.0 0.0 SINCE 7/1 0.0 0.0 0.0 SNOWDEPTH AVG. 0 0 DAYS >= 1.0 0 0.0 0.0 0 DAYS >= 0.1 0 0 GREATEST SNOW DEPTH 0 0 MM 24 HR TOTAL MM DEGREE DAYS HEATING TOTAL 0 7 -7 0 SINCE 7/1 0 0 0 MM COOLING TOTAL 293 213 80 251 SINCE 1/1 543 357 186 MM ................................................................ WIND (MPH) AVERAGE WIND SPEED 7.3 HIGHEST WIND SPEED/DIRECTION 28/240 DATE 07/14 28/240 DATE 07/16 HIGHEST GUST SPEED/DIRECTION 42/240 DATE 07/16 SKY COVER POSSIBLE SUNSHINE (PERCENT) MM NUMBER OF DAYS FAIR 10 NUMBER OF DAYS PC 17 NUMBER OF DAYS CLOUDY 4 AVERAGE RH (PERCENT) 66 WEATHER CONDITIONS. NUMBER OF DAYS WITH THUNDERSTORM 5 MIXED PRECIP 0 HEAVY RAIN 6 RAIN 5 LIGHT RAIN 13 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 0 HAZE 4 - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. && ... STORMY, HUMID JULY, RECORD NUMBER OF TORNADOES ... FOR A REGION WHERE TORNADO OCCURRENCES ARE INFREQUENT, SWARMS OF TORNADOES THIS JULY BROUGHT A TOTAL OF 9 TORNADOES TO WESTERN NEW YORK, WITH THESE TORNADO TOUCHDOWNS SPANNING FROM CHAUTAUQUA COUNTY TO OSWEGO COUNTY, SOUTH OF THE METRO AREAS OF BUFFALO AND ROCHESTER. THE PRELIMINARY TOTAL FOR NEW YORK STATE IS 23 TWISTERS TOUCHING DOWN, A RECORD FOR THE STATE FOR THE MONTH OF JULY AND THE 9 TORNADOES FOR WESTERN NEW YORK BROKE THE RECORD OF 5 FOR JULY SET IN 2009 AND 2010. THIS YEAR ALSO CONTINUED TO BE WARM, WITH JULY ANOTHER PERSISTENTLY WARM MONTH WITH THE AVERAGE TEMPERATURE FOR JULY WELL ABOVE NORMAL. THE TEMPERATURE AVERAGED 74.2F THIS MONTH, JUST OUTSIDE THE TOP TEN WARMEST ON RECORD FOR JULY, FINISHING TIED FOR 14TH WARMEST. THIS BREAKS THE STREAK OF TOP TEN WARMEST MONTHS AT 5 MONTHS (FEBRUARY - JUNE). DESPITE RANKING 14TH WARMEST ON RECORD, THERE WERE NO RECORD TEMPERATURES ESTABLISHED THROUGH THE MONTH, WITH THE GREATEST AVERAGE TEMPERATURE DEPARTURE BEING 9 DEGREES ON THE 3RD AND 5TH. ABOVE NORMAL TEMPERATURE DAYS OUTWEIGHED BELOW NORMAL TEMPERATURE DAYS 24 TO 7. THERE WERE 26 DAYS THAT REACHED INTO THE 80S, 8 DAYS MORE THAN THE AIRPORT TYPICAL TOTAL AND THESE 26 DAYS RANKED 7TH GREATEST FOR JULY. PRECIPITATION TOTALED 2.87 INCHES, WHICH IS ABOUT A THIRD OF AN INCH BELOW NORMAL. MULTIPLE ROUNDS OF DRENCHING THUNDERSTORMS DURING THE AFTERNOON OF THE 15TH BROUGHT 1.27 INCHES OF RAIN TO THE BUFFALO AIRPORT, THE WETTEST DAY FOR THE MONTH. THERE WERE A FEW BRIEF DRY STRETCHES THROUGH THE MONTH, BUT NOT LONG ENOUGH TO DRY OUT AREA VEGETATION. THE FIRST MEASURABLE RAINFALL DID NOT OCCUR UNTIL THE 10TH, WITH 0.69 INCHES OF PRECIPITATION MEASURED. ALSO A 5 DAY STRETCH FROM THE 25TH TO THE 29TH ALSO FEATURED RAIN-FREE WEATHER. HIGH PRESSURE STARTED JULY WITH COMFORTABLE LEVELS OF HUMIDITY, AND PRECIPITATION FREE DAYS. BEHIND THIS SURFACE HIGH, THE HUMIDITY STARTED TO BUILD THROUGH THE REMAINDER OF THE FIRST WEEK OF THE MONTH, WITH ISOLATED SHOWERS AND THUNDERSTORMS. THE REMNANTS OF BERYL SPUN ACROSS THE REGION ON THE 10TH WITH NUMEROUS SHOWERS AND THUNDERSTORMS. SEVERAL SPIN-UPS OCCURRED WITHIN THESE THUNDERSTORMS, WITH A TOTAL OF 6 CONFIRMED TORNADOES, 4 OF WHICH OCCURRED IN CHAUTAUQUA, ERIE AND GENESEE COUNTIES, WITH ANOTHER 2 OCCURRING IN WAYNE AND OSWEGO COUNTIES. IN ADDITION, DAMAGING WINDS BROUGHT DOWN SEVERAL TREES AND WIRES THROUGH WESTERN NEW YORK. IT REMAINED WARM THROUGH MID-MONTH, WITH DRENCHING THUNDERSTORMS ON THE 15TH PRODUCING MULTIPLE ROUNDS OF RAIN TO THE BUFFALO AIRPORT. THE 15TH ALSO BROUGHT A SECOND DAY OF WIDESPREAD DAMAGING THUNDERSTORMS TO WESTERN NEW YORK. A SPIN IN THE MID ATMOSPHERE, A MESOSCALE CONVECTIVE VORTEX, AIDED IN THE FORMATION OF AN ADDITIONAL 2 TORNADOES ON THE 15TH, WITH ONE EACH TOUCHING DOWN IN GENESEE AND ONTARIO COUNTIES. THUNDERSTORMS ALSO PRODUCED 1-INCH HAIL SOUTH OF BUFFALO, AND 2.5-INCH HAIL IN ONTARIO COUNTY, THIS IN ADDITION TO DAMAGING WIND GUSTS. FOLLOWING THESE STORMS, A COLD FRONT PASSED ACROSS THE REGION ON THE 17TH SENDING HUMIDITY, SHOWERS AND THUNDERSTORMS EASTWARD. THREE BEAUTIFUL DRY DAYS OCCURRED ON THE 18TH TO THE 20TH LEADING INTO A PLEASANT WEEKEND. A FEW SHOWERS AND THUNDERSTORMS AGAIN OCCURRED THROUGH THE LAST FULL WORK WEEK OF JULY BEFORE AGAIN A COLD FRONT LATE WEDNESDAY NIGHT BROUGHT BACK BEAUTIFUL WEATHER TO FINISH THE WEEK AND WEEKEND. A FEW SHOWERS AND THUNDERSTORMS CLOSED OUT THE MONTH ACROSS WESTERN NEW YORK, THOUGH ACTIVITY REMAINED BELOW SEVERE THRESHOLDS. THE TEMPERATURE ON LAKE ERIE REMAINED STEADY AROUND 73F THROUGH MID- MONTH, THEN ROSE TO 77 DEGREES BY THE END OF THE MONTH. THE WINDS AVERAGED BELOW NORMAL FOR JULY, AND THE STRONGEST GUST WAS 42 MPH FROM THE SOUTHWEST DURING THE MORNING HOURS OF THE 16TH. IN ALL, JULY 2024 WILL BE NOTED FOR THE LARGE NUMBER OF TORNADOES BY WESTERN NEW YORK STANDARDS, IN ADDITION TO PERSISTENT HUMIDITY AND VERY WARM DAYS. && THOMAS $$