Climatological Report (Monthly)
Issued by NWS Buffalo, NY
Issued by NWS Buffalo, NY
312 CXUS51 KBUF 052054 CLMBUF CLIMATE REPORT NATIONAL WEATHER SERVICE BUFFALO NY 536 AM EDT TUE OCT 01 2024 ................................... ...THE BUFFALO NY CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 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 09/03/1953 LOW 32 09/30/1991 09/24/1963 09/28/1957 HIGHEST 85 09/12 90 09/06 09/15 LOWEST 47 09/03 46 09/16 AVG. MAXIMUM 77.3 72.3 5.0 74.1 AVG. MINIMUM 58.5 54.5 4.0 56.6 MEAN 67.9 63.4 4.5 65.3 DAYS MAX >= 90 0 0.3 -0.3 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 8.99 1977 MINIMUM 0.31 1897 TOTALS 2.99 4.10 -1.11 2.67 DAYS >= .01 10 6 DAYS >= .10 6 4 DAYS >= .50 3 3 DAYS >= 1.00 0 1 GREATEST 24 HR. TOTAL 1.13 09/06 TO 09/07 1.80 09/06 TO 09/07 SNOWFALL (INCHES) RECORDS TOTAL T 1956 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 26 114 -88 56 SINCE 7/1 34 134 -100 MM COOLING TOTAL 121 66 55 74 SINCE 1/1 867 601 266 MM ................................................................ WIND (MPH) AVERAGE WIND SPEED 7.3 HIGHEST WIND SPEED/DIRECTION 28/230 HIGHEST GUST SPEED/DIRECTION 39/250 DATE 09/08 SKY COVER POSSIBLE SUNSHINE (PERCENT) MM NUMBER OF DAYS FAIR 10 NUMBER OF DAYS PC 11 NUMBER OF DAYS CLOUDY 9 AVERAGE RH (PERCENT) 67 WEATHER CONDITIONS. NUMBER OF DAYS WITH THUNDERSTORM 3 MIXED PRECIP 0 HEAVY RAIN 5 RAIN 6 LIGHT RAIN 12 FREEZING RAIN 0 LT FREEZING RAIN 0 HAIL 0 HEAVY SNOW 0 SNOW 0 LIGHT SNOW 0 SLEET 0 FOG 10 FOG W/VIS <= 1/4 MILE 3 HAZE 3 - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. && ... WARM AND DRY FOR THE START OF METEOROLOGICAL AUTUMN ... WARM DAYS OF SUMMER CONTINUED THROUGH THE MONTH OF SEPTEMBER, A TREND THAT HAS CONTINUED IN RECENT YEARS. THOUGH THE MONTH STARTED COOL, WITH A BIT OF A BREEZE, THE FINAL 20 DAYS OF THE MONTH FINISHED WITH WELL ABOVE NORMAL TEMPERATURE, ENOUGH TO PLACE SEPTEMBER 2024 INTO 3RD WARMEST ON RECORD. STORMY WEATHER OCCURRED WITHIN THE COOLER FIRST THIRD OF THE MONTH, INCLUDING 3 TORNADOES IN WESTERN NEW YORK AND AN ADDITIONAL 4TH TORNADO IN JEFFERSON COUNTY TO THE EAST OF LAKE ONTARIO. THIS BRINGS THE NEW YORK STATE RECORD BREAKING YEAR FOR TORNADOES TO A TOTAL OF 32 THROUGH SEPTEMBER. THE TEMPERATURE AVERAGED 67.9F IN SEPTEMBER, WHICH IS FOUR AND A HALF DEGREES ABOVE NORMAL, AND PLACES THIRD WARMEST ON RECORD. ABOVE NORMAL WARMTH FOR SEPTEMBER IS NO SURPRISE AS JUST TWO SEPTEMBERS SINCE 2007 HAVE FEATURED BELOW NORMAL AVERAGE TEMPERATURE (2013 AND 2022). THIS MONTH TRAILED ONLY SEPTEMBER OF 1881 (71.2F) AND SEPTEMBER OF 1961 (68.6F) FOR WARMEST ON RECORD. ONLY 3 OF THE FIRST 10 DAYS OF THE MONTH WERE ABOVE NORMAL, WITH THE FIRST 10 DAYS AVERAGING 3 DEGREES BELOW NORMAL. ALL 20 OF THE FINAL DAYS OF THE MONTH WERE ABOVE NORMAL, AND AVERAGED 8.6 DEGREES ABOVE NORMAL. THE MAXIMUM TEMPERATURE ON THE 8TH WAS 65F, WHICH ALSO HAPPENED TO BE THE "COOLEST" MAXIMUM TEMPERATURE FOR THE ENTIRE MONTH. ONLY ONE OTHER SEPTEMBER IN BUFFALO`S 154 YEAR PERIOD OF RECORD HAD THE ENTIRE MONTH WITH THE "COOLEST" MAXIMUM TEMPERATURE MILDER THAN 65F, AND THIS WAS THE WARM SEPTEMBER OF 1881 WHICH HAD ALL MAXIMUM TEMPERATURES 68F OR GREATER. PRECIPITATION FOR THE MONTH WAS BELOW NORMAL BY SLIGHTLY MORE THAN AN INCH. ABOUT TWO-THIRDS OF THE PRECIPITATION FOR THE MONTH OCCURRED IN THE COOLER AND WETTER FIRST THIRD OF THE MONTH. AFTER NEARLY TWO WEEKS OF DRY WEATHER, RAIN SHOWERS RETURNED DURING THE 22ND TO 26TH OF THE MONTH RETURNING EARLY AUTUMN VEGETATION BACK TO A LUSH GREEN COLOR. THERE WERE THREE DAYS WITH THUNDERSTORMS THIS MONTH WHICH IS CLOSE TO THE NORMAL OF 3.5 DAYS. THROUGH THE FIRST 10 DAYS OF SEPTEMBER A COOL PATTERN PERSISTED, WITH SEVERAL STORMY DAYS WITHIN THE WEST TO NORTHWEST FLOW. ON THE 6TH AN EF-1 TORNADO RIPPED THROUGH THE WIRT AND FRIENDSHIP AREAS. THREE DAYS LATER TWO ADDITIONAL EF-0 TORNADOES FORMED IN WESTERN NEW YORK, WITH ONE ON THE WESTERN SIDE OF GRAND ISLAND AND ANOTHER FORMING NEAR PEMBROKE DURING THE EVENING HOURS. THE 9TH WAS ALSO THE WETTEST DAY FOR THE MONTH AT THE BUFFALO AIRPORT, WITH 0.79 INCHES OF RAIN FALLING WITHIN SHOWERS AND AFTERNOON THUNDERSTORMS. STARTING ON THE 11TH A MILDER, AND DRIER PATTERN WITH AN EASTERLY FLOW ENSUED WITH VERY WARM AFTERNOONS INTO THE 80S AND SEVERAL DAYS ON THE SUMMER-LIKE HUMID SIDE. THESE 80S WERE ONLY REPLACED WITH 70S FOR THE FINAL WEEK OF THE MONTH, THOUGH SEVERAL DAYS OF RAIN SHOWERS, AND CLOUDIER DAYS DID RETURN. THE WINDS FOR THE MONTH WERE A BIT BELOW NORMAL, WITH AN AVERAGE SPEED OF 7.3 MPH. THE STRONGEST GUST OCCURRED ON THE 8TH FROM THE SOUTHWEST AT 39 MPH. THE WATER TEMPERATURE ON LAKE ERIE REMAINED FAIRLY CONSTANT THROUGHOUT THE MONTH WITH A FLUCTUATION OF JUST 3 DEGREES. THE 73F READING AT THE BEGINNING OF MONTH LOWERED TO JUST 70F AT THE END OF THE MONTH. IN ALL, ANOTHER WARM AND DRY MONTH. && THOMAS $$