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
$$