Climatological Report (Monthly)
Issued by NWS Buffalo, NY
Issued by NWS Buffalo, NY
890
CXUS51 KBUF 091519
CLMROC
CLIMATE REPORT
NATIONAL WEATHER SERVICE BUFFALO NY
816 AM EDT FRI MAY 01 2026
...................................
...THE ROCHESTER NY CLIMATE SUMMARY FOR THE MONTH OF APRIL 2026...
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1871 TO 2026
WEATHER OBSERVED NORMAL DEPART LAST YEAR`S
VALUE DATE(S) VALUE FROM VALUE DATE(S)
NORMAL
................................................................
TEMPERATURE (F)
RECORD
HIGH 93 04/28/1990
04/30/1970
LOW 11 04/04/1879
HIGHEST 78 04/18 84 04/29
LOWEST 21 04/08 21 04/09
AVG. MAXIMUM 60.6 56.6 4.0 57.6
AVG. MINIMUM 39.6 37.1 2.5 37.7
MEAN 50.1 46.8 3.3 47.7
DAYS MAX >= 90 0 0.0 0.0 0
DAYS MAX <= 32 0 0.4 -0.4 0
DAYS MIN <= 32 5 9.9 -4.9 7
DAYS MIN <= 0 0 0.0 0.0 0
PRECIPITATION (INCHES)
RECORD
MAXIMUM 5.81 2011
MINIMUM 0.94 1884
TOTALS 4.08 2.99 1.09 3.51
DAYS >= .01 18 14
DAYS >= .10 7 7
DAYS >= .50 3 2
DAYS >= 1.00 0 1
GREATEST
24 HR. TOTAL 1.64 03/31 TO 04/01 1.57 04/02 TO 04/03
SNOWFALL (INCHES)
RECORDS
TOTAL 23.8 1901
TOTALS 0.3 3.0 -2.7 2.0
SINCE 7/1 114.1 101.9 12.2 MM
SNOWDEPTH AVG. T 0
DAYS >= 1.0 0 1.0 -1.0 1
DAYS >= 0.1 1 3
GREATEST
SNOW DEPTH MM 1 04/16
24 HR TOTAL MM 1.2 04/08 TO 04/08
DEGREE DAYS
HEATING TOTAL 442 549 -107 511
SINCE 7/1 6119 5993 126 MM
COOLING TOTAL 3 4 -1 0
SINCE 1/1 3 4 -1 MM
................................................................
WIND (MPH)
AVERAGE WIND SPEED 9.9
HIGHEST WIND SPEED/DIRECTION 39/260
HIGHEST GUST SPEED/DIRECTION 56/270 DATE 04/03
SKY COVER
POSSIBLE SUNSHINE (PERCENT) MM
AVERAGE SKY COVER 0.73
NUMBER OF DAYS FAIR 2
NUMBER OF DAYS PC 12
NUMBER OF DAYS CLOUDY 16
AVERAGE RH (PERCENT) 69
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 3 MIXED PRECIP 0
HEAVY RAIN 5 RAIN 9
LIGHT RAIN 21 FREEZING RAIN 0
LT FREEZING RAIN 0 HAIL 1
HEAVY SNOW 1 SNOW 1
LIGHT SNOW 5 SLEET 0
FOG 20 FOG W/VIS <= 1/4 MILE 2
HAZE 1
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
&&
... UNSETTLED AND WARM APRIL ...
A WET, BUT WARM MONTH OF APRIL OCCURRED FOR WESTERN NEW YORK TO
START THE BEGINNING OF THE GROWING SEASON. FOLLOWING A COLD WINTER,
PLEASANT DAYS IN THE 60S AND 70S WERE FREQUENT THROUGHOUT THE MONTH.
HOWEVER, UNSETTLED WEATHER WAS A MAINSTAY AS WELL WITH DAY-TO-DAY
PRECIPITATION EVENTS COMMON, INTERTWINED WITH SEVERAL DAYS OF
SOAKING RAIN THAT WERE SPREAD EVENLY THROUGHOUT THE MONTH.
THE TEMPERATURE FOR THE MONTH OF APRIL AVERAGED 50.1F. THIS PLACES
APRIL AS TIED FOR 10TH WARMEST ON RECORD. THERE WERE 9 DAYS THAT
REACHED 70F OR WARMER, TWO DAYS OFF THE RECORD OF 11 DAYS SET BACK
IN 1942. ON THE OTHER HAND, 5 DAYS REACHING 32F OR LOWER IS TIED
FOR 10TH LOWEST FOR THE MONTH. THE WARMEST STRETCH FOR THE MONTH
OCCURRED FROM APRIL 13TH TO THE 18TH WHEN THE DAILY AVERAGE
TEMPERATURE AVERAGED 15 DEGREES ABOVE THE DAILY NORMAL. THERE WERE
NO RECORDS SET THIS MONTH.
PRECIPITATION FOR THE MONTH TOTALED 4.08 INCHES WHICH IS TIED FOR
THE 14TH WETTEST APRIL MONTH ON RECORD. COMBINED WITH A WET MARCH,
THE MARCH- APRIL TOTAL PRECIPITATION OF 9.97 INCHES MARKS THE SECOND
WETTEST START TO METEOROLOGICAL SPRING ON RECORD, TRAILING ONLY 1873
WHICH STARTED THE FIRST TWO MONTHS OF METEOROLOGICAL SPRING WITH
11.73 INCHES OF PRECIPITATION. TRUE TO THE NORM, SNOW OCCURRED IN
APRIL, WITH MEASURABLE SNOW OF 0.3 INCHES OCCURRING ON THE 20TH,
WHICH IS 6 DAYS LATER THAN THE AVERAGE LAST MEASURABLE SNOWFALL. THE
18 DAYS WITH MEASURED PRECIPITATION IS TIED FOR 10TH GREATEST ON
RECORD, TRAILING THE RECORD OF 22 DAYS SET BACK IN 1929. HEAVIER
PRECIPITATION WITHIN THE MONTH WAS SPREAD OUT JUST ENOUGH TO LIMIT
ANY WIDESPREAD FLOODING. RIVER FLOODING AND LOW-LYING PONDING OF
WATER STARTED THE MONTH, THIS FROM A WET END TO MARCH, WITH
CONDITIONS IMPROVING THROUGH THE FIRST TWO DAYS OF THE MONTH. NEARLY
TWO INCHES OF RAIN FELL OVER A 5-DAY STRETCH FROM THE 15TH TO THE
19TH, BUT WAS SPREAD OUT ENOUGH TO AGAIN LIMIT FLOODING, WITH JUST
RISES TO NEAR BANKFULL ON AREA CREEKS AND RIVERS. THE WETTEST DAY OF
THE MONTH OCCURRED ON THE 25TH WITH 0.92 INCHES OF RAIN MEASURED AT
THE AIRPORT.
THOUGH A WARM AND WET MONTH, ACTIVE WEATHER WAS AT A MINIMUM THROUGH
THE MONTH WITH MUCH OF THE PRECIPITATION STRATIFORM, OR WEAKLY
CONVECTIVE. THE ONE DAY WITH SIGNIFICANT WEATHER OCCURRED DURING THE
EVENING HOURS OF THE 15TH. SEVERAL STORMS ALONG A LAKE ERIE LAKE
BREEZE BOUNDARY ON THE 15TH BLOSSOMED INTO DAMAGING THUNDERSTORMS,
DOWNING TREES AND WIRES ACROSS SOUTHWESTERN NEW YORK. A COUPLE OF
BRIEF TORNADOES SPUN-UP WITHIN THESE CLUSTERS OF STORMS, WITH THESE
TORNADOES OCCURRING WITHIN MACHIAS AND NORTHEAST OF FRANKLINVILLE.
BOTH TORNADOES HAD A PATH LENGTH OF LESS THAN A QUARTER OF A MILE.
THE LONGEST DRY STRETCH WAS A MERE THREE DAYS FROM THE 22ND THROUGH
THE 24TH.
WATER TEMPERATURE REMAINED IN THE LOWER 40S AND UPPER 30S THROUGH
THE MONTH. WINDS AVERAGED JUST BELOW NORMAL FOR THE MONTH AND THE
STRONGEST GUST, 53 MPH ON THE 14TH OCCURRED IN THE EARLY AFTERNOON
BEHIND A COLD FRONT PASSAGE.
IN ALL, A WARM AND WET MONTH, BUT WITHOUT MANY SEVERE STORMS.
&&
THOMAS
$$