887
CXUS51 KBUF 031009
CLMBUF
CLIMATE REPORT
NATIONAL WEATHER SERVICE BUFFALO NY
826 AM EDT THU MAY 01 2025
...............................
..THE BUFFALO NY CLIMATE SUMMARY FOR THE MONTH OF APRIL 2025
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1871 TO 2025
WEATHER OBSERVED NORMAL DEPART LAST YEAR'S
VALUE DATE(S) VALUE FROM VALUE DATE(S)
NORMAL
............................................................
TEMPERATURE (F)
RECORD
HIGH 94 04/28/1990
LOW 5 04/01/1923
HIGHEST 80 04/24 78 04/09
LOWEST 23 04/08 29 04/26
AVG. MAXIMUM 57.4 54.7 2.7 58.4
AVG. MINIMUM 37.9 36.5 1.4 41.6
MEAN 47.7 45.6 2.1 50.0
DAYS MAX >= 90 0 0.0 0.0 0
DAYS MAX <= 32 0 0.5 -0.5 0
DAYS MIN <= 32 7 9.3 -2.3 4
DAYS MIN <= 0 0 0.0 0.0 0
PRECIPITATION (INCHES)
RECORD
MAXIMUM 6.38 2017
MINIMUM 0.59 1915
TOTALS 2.86 3.37 -0.51 4.58
DAYS >= .01 15 17
DAYS >= .10 8 9
DAYS >= .50 2 3
DAYS >= 1.00 0 1
GREATEST
24 HR. TOTAL 1.12 04/02 TO 04/03 1.52 04/11 TO 04/12
SNOWFALL (INCHES)
RECORDS
TOTAL 15.7 1885
TOTALS 0.1 2.5 -2.4 0.5
SINCE 7/1 77.3 95.4 -18.1
SNOWDEPTH AVG. 0 -1
DAYS >= 1.0 0 0.8 -0.8 0
DAYS >= 0.1 1 2
GREATEST
SNOW DEPTH 0 MM 04/28
04/29
04/05
24 HR TOTAL 0.1 04/16 TO 04/16
DEGREE DAYS
HEATING TOTAL 515 584 -69 444
SINCE 7/1 5549 6159 -610 MM
COOLING TOTAL 2 2 0 1
SINCE 1/1 2 2 0 MM
............................................................
WIND (MPH)
AVERAGE WIND SPEED 10.6
HIGHEST WIND SPEED/DIRECTION 37/240
HIGHEST GUST SPEED/DIRECTION 54/220 DATE 04/19
SKY COVER
POSSIBLE SUNSHINE (PERCENT) MM
NUMBER OF DAYS FAIR 4
NUMBER OF DAYS PC 11
NUMBER OF DAYS CLOUDY 15
AVERAGE RH (PERCENT) 62
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 4 MIXED PRECIP 0
HEAVY RAIN 3 RAIN 9
LIGHT RAIN 17 FREEZING RAIN 0
LT FREEZING RAIN 0 HAIL 0
HEAVY SNOW 0 SNOW 0
LIGHT SNOW 7 SLEET 1
FOG 13 FOG W/VIS <= 1/4 MILE 4
HAZE 1
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
. A COOL START TO APRIL, WITH A MILD FINISH
COOL AND UNSETTLED CONDITIONS DOMINATED THE FIRST HALF OF APRIL WITH
ALL BUT THREE DAYS RECORDING AT LEAST A TRACE OF PRECIPITATION. THE
ONLY MEASURABLE SNOW OCCURRED ON THE 15TH OF APRIL. THE FINAL TWELVE
DAYS OF THE MONTH FEATURED A MILD TREND, PUSHING THE OVERALL AVERAGE
TEMPERATURE FOR THE MONTH TO AROUND TWO DEGREES ABOVE NORMAL.
THE TEMPERATURE AVERAGED 47.7°F THIS MONTH, WHICH IS 2.1 DEGREES
ABOVE NORMAL. THERE WERE 13 DAYS FEATURING BELOW NORMAL TEMPERATURE,
WITH 11 OF THESE DAYS OCCURRING WITHIN THE FIRST 17 DAYS OF THE
MONTH. THE WARMEST DAY OF THE MONTH OCCURRED ON THE 24TH, WHICH ALSO
HAPPENED TO BE THE FIRST 80°F DAY OF THE YEAR. THIS 80°F TEMPERATURE
OCCURRED 11 DAYS EARLIER THAN THE AIRPORT NORMAL. THE COLDEST
TEMPERATURE THIS MONTH WAS 23°F, WHICH OCCURRED ON THE 8TH. THIS IS
THE COLDEST APRIL TEMPERATURE IN 6 YEARS.
PRECIPITATION TOTALED 2.86 INCHES, WHICH IS A HALF AN INCH BELOW
NORMAL. THE 15 DAYS WITH MEASURABLE PRECIPITATION IS ONE DAY MORE
THAN THE APRIL NORMAL. DATING BACK TO JULY 1ST, THE 25.28 INCHES IS
THE DRIEST JULY - APRIL PERIOD SINCE 1966-67. MEASURABLE SNOW THIS
MONTH TOTALED JUST A TENTH OF AN INCH, OCCURRING ON THE 16TH. THE
1.3 INCHES OF SNOW IN THE MARCH-APRIL PERIOD IS THE THIRD LEAST
AMOUNT OF SNOW IN RECORDED HISTORY, WITH JUST THE CLOSING WINTERS OF
1945-1946 AND 2009-10 FEATURING LESS SNOW FOR THIS MARCH-APRIL
PERIOD, WITH BOTH YEARS TOTALING JUST A TRACE OF SNOW. THE SNOW IN
APRIL DID CONTINUE THE STREAK OF AT LEAST A TRACE OF SNOW OCCURRING
IN THE MONTH OF APRIL, DATING BACK TO 1884.
COOL, NORTHWEST FLOW BEGAN THE MONTH OF APRIL WITH A FEW FLURRIES OF
SNOW AROUND. A STORM SYSTEM LIFTED OUT OF THE CENTRAL PLAINS ON THE
2ND, WITH A PAIR OF WARM FRONTS BRINGING AN ALL DAY RAIN EVENT TO
WESTERN NEW YORK. UPPER LEVEL TROUGHING THEN MAINTAINED UNSETTLED
AND COOL WEATHER THROUGH A GOOD PORTION OF THE FIRST HALF OF APRIL.
DAY-TO-DAY PRECIPITATION EVENTS NEVER TOTALED MUCH RAINFALL OR
SNOWFALL THOUGH. TEMPERATURES SPIKED INTO THE LOWER 70S FOR THE 18TH
AND 19TH OF THE MONTH BEFORE A COLD FRONT WITH STRONG TO SEVERE
THUNDERSTORMS WHIPPED ACROSS WESTERN NEW YORK. THE STRONGEST CLUSTER
OF STORMS ADVANCED FROM THE LAKE ERIE SHORELINE OF CHAUTAUQUA COUNTY
INLAND ACROSS CENTRAL ERIE, GENESEE AND TO MONROE COUNTY DOWNING
SEVERAL TREES AND POWER LINES. COOLER, AND DRIER AIR BEHIND THE
FRONT LEFT EASTER SUNDAY SUNNY, ALBEIT CHILLY. ANOTHER SURFACE LOW
BROUGHT A FEW HEAVIER THUNDERSTORMS TO THE WESTERN SOUTHERN TIER ON
MONDAY APRIL 21ST. MILDER TEMPERATURES THE FINAL WEEK OF THE MONTH
BROUGHT THE AVERAGE TEMPERATURE FOR THE MONTH TO THE POSITIVE SIDE.
AHEAD OF A STRONG COLD FRONT ON THE 29TH ADDITIONAL THUNDERSTORMS
BLOSSOMED IN THE MID AFTERNOON AND EARLY EVENING HOURS ALONG A
SOUTHERN LAKE ERIE LAKE BREEZE, WITH NUMEROUS TREES DOWN, AND LARGE
HAIL TO GOLF BALL SIZE OCCURRING FROM THE SOUTHERN TIER ACROSS
WYOMING COUNTY AND INTO NORTHERN PORTIONS OF LIVINGSTON AND ONTARIO
COUNTIES. A STRONG SOUTHWEST BREEZE OFF THE COOL LAKE ERIE WATERS
SHADOWED THE BUFFALO METRO AREA FROM THUNDERSTORMS, WITH JUST WEAKER
STORMS CROSSING THE BUFFALO METRO AREA IN THE EVENING WITH THE
PASSAGE OF THE COLD FRONT. FOR THE FINAL DAY OF THE MONTH
TEMPERATURES WERE ABOUT 25 TO 30 DEGREES COLDER THAN THE PREVIOUS
DAY, THOUGH SUNSHINE WAS ABUNDANT THROUGHOUT THE DAY.
ICE REMAINED ON LAKE ERIE THROUGH THE 16TH OF THE MONTH, WITH THE
WATER TEMPERATURE JUMPING TO 34°F ON THE 17TH. ICE FLOES REMAINED ON
THE LAKE AND DOWN THE NIAGARA RIVER FOR THE FOLLOWING WEEK. BY THE
END OF THE MONTH THE WATER TEMPERATURE CLIMBED TO 48°F. THE WINDS
AVERAGED NEAR NORMAL FOR THE MONTH, AND THE STRONGEST GUST OCCURRED
ON THE 19TH AHEAD OF A COLD FRONT WITH A SPEED OF 54 MPH FROM THE
SOUTHWEST.
IN ALL A TYPICAL APRIL WITH FLUCTUATING TEMPERATURES, THOUGH LACKING
MUCH SNOW FOR THE END OF THE SEASON.
THOMAS
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