Climatological Report (Monthly)
Issued by NWS Buffalo, NY
Issued by NWS Buffalo, NY
939 CXUS51 KBUF 040258 CLMROC CLIMATE REPORT NATIONAL WEATHER SERVICE BUFFALO NY 747 AM EDT MON JUL 01 2024 ................................... ...THE ROCHESTER NY CLIMATE SUMMARY FOR THE MONTH OF JUNE 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 100 06/21/1953 LOW 35 06/08/1949 HIGHEST 94 06/18 89 06/02 LOWEST 48 06/01 47 06/05 06/12 06/07 AVG. MAXIMUM 79.5 77.9 1.6 75.2 AVG. MINIMUM 60.1 57.4 2.7 56.4 MEAN 69.8 67.6 2.2 65.8 DAYS MAX >= 90 4 1.6 2.4 0 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 8.14 1922 MINIMUM 0.22 1963 TOTALS 3.40 3.37 0.03 2.55 DAYS >= .01 15 10 DAYS >= .10 6 6 DAYS >= .50 2 2 DAYS >= 1.00 1 1 GREATEST 24 HR. TOTAL 1.55 06/29 TO 06/30 1.07 06/12 TO 06/12 SNOWFALL (INCHES) RECORDS TOTAL MM MM TOTALS 0.0 0.0 0.0 0.0 SINCE 7/1 52.5 102.0 -49.5 MM 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 0.0 MM DEGREE DAYS HEATING TOTAL 30 49 -19 54 SINCE 7/1 5184 6273 -1089 MM COOLING TOTAL 181 128 53 86 SINCE 1/1 239 172 67 MM ................................................................ WIND (MPH) AVERAGE WIND SPEED 8.0 HIGHEST WIND SPEED/DIRECTION 33/250 HIGHEST GUST SPEED/DIRECTION 47/250 DATE 06/23 SKY COVER POSSIBLE SUNSHINE (PERCENT) MM AVERAGE SKY COVER 0.68 NUMBER OF DAYS FAIR 1 NUMBER OF DAYS PC 16 NUMBER OF DAYS CLOUDY 13 AVERAGE RH (PERCENT) 68 WEATHER CONDITIONS. NUMBER OF DAYS WITH THUNDERSTORM 7 MIXED PRECIP 0 HEAVY RAIN 5 RAIN 6 LIGHT RAIN 16 FREEZING RAIN 0 LT FREEZING RAIN 0 HAIL 0 HEAVY SNOW 0 SNOW 0 LIGHT SNOW 0 SLEET 0 FOG 9 FOG W/VIS <= 1/4 MILE 1 HAZE 1 - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. && ... ANOTHER WARM MONTH, WITH SUMMER`S THUNDERSTORMS ... THE INCREDIBLE WARMTH THAT BEGAN WITH AN EL NIO WINTER AND CONTINUED THROUGH THE SPRING MONTHS CARRIED ON INTO THE START OF THE SUMMER, WITH ROCHESTER YET AGAIN RECORDING A MONTH WITH AT LEAST A POSITIVE TWO DEGREE DEPARTURE FROM NORMAL. THIS JUNE WAS THE SEVENTH CONSECUTIVE MONTH WITH AT LEAST A POSITIVE TWO DEGREE TEMPERATURE DEPARTURE IN 154 YEARS OF DATA. SEVERAL ROUNDS OF SUMMER STORMS THROUGH THE MONTH KEPT LAWNS AND VEGETATION GREEN, YET WITHOUT ANY SIGNIFICANT FLOODING. THE TEMPERATURE AVERAGED 69.8F THIS MONTH, WHICH IS JUST OVER TWO DEGREES ABOVE NORMAL. THE ABOVE NORMAL DAYS OUTWEIGHED THE BELOW NORMAL DAYS 18 TO 11, WITH THE FIRST DAY OF THE MONTH EXACTLY NORMAL. THERE WERE TWO COOL SPELLS THIS MONTH, THE FIRST OF A WEEK MAGNITUDE OCCURRING FROM THE 7TH THROUGH THE 12TH, AND A SHORTER PERIOD 3 OF THE FINAL 4 DAYS OF THE MONTH. BETWEEN THESE COOL SPELLS, A STRETCH OF MID-JULY LIKE HUMIDITY AND HEAT OCCURRED FROM THE 17TH THROUGH THE 23RD. SEVERAL DAYS HAD DEWPOINTS TOP 70F WHICH WITH TEMPERATURES IN THE LOWER 90S CREATED HEAT INDEX VALUES AROUND 100F. THE 15 DAYS OF 80 DEGREES OR WARMER TEMPERATURES ARE THREE DAYS MORE THAN NORMAL. THERE WERE TWO RECORD WARM MINIMUM TEMPERATURES SET THIS MONTH. THE FIRST OCCURRED ON THE 18TH, WITH THE 73F READING TOPPING THE FORMER RECORD OF 72F SET BACK IN 2018. THE NEXT DAY THE MINIMUM TEMPERATURE WAS JUST 74F, BREAKING THE RECORD OF 72 SET BACK IN 1919. PRECIPITATION FOR THE MONTH TALLIED 3.40 INCHES, WHICH IS JUST THREE HUNDREDTHS OF AN INCH ABOVE NORMAL. JUNE SPENT MUCH OF THE TIME WITH A PRECIPITATION DEFICIT, BUT A DAILY RECORD 1.32 INCHES ON THE 29TH, AND ANOTHER QUARTER OF AN INCH ON THE 30TH OF THE MONTH BROUGHT PRECIPITATION BACK ABOVE NORMAL. THIS DAILY RECORD ON THE 29TH OF 1.32 INCHES BROKE THE PREVIOUS RECORD OF 1.03 INCHES SET BACK IN 1939. HIGH PRESSURE STARTED THE MONTH OF JUNE PLEASANT. AFTER A BEAUTIFUL SUNRISE, A WEAKENING AREA OF LOW PRESSURE BROUGHT LIGHT RAIN SHOWERS TO WESTERN NEW YORK ON THE 2ND. A TOUCH OF HUMIDITY BUILT INTO THE REGION ON THE 5TH AND 6TH WITH A FEW SHOWERS AND THUNDERSTORMS AROUND. MORE STORMS FORMED ON THE 7TH AHEAD OF A COLD FRONT. THIS FRONT BROUGHT A COOLER AIRMASS ACROSS THE EASTERN GREAT LAKES, ONE THAT WOULD LAST THROUGH THE 12TH. UNDER AN UPPER LEVEL TROUGH RAIN SHOWERS WERE PLENTIFUL DURING THE FIRST HALF OF THIS COOL STRETCH, INCLUDING NEARLY AN INCH OF RAINFALL WITHIN THUNDERSTORMS ON THE 9TH. EVENTUALLY DRIER AIR WON OUT AND THE 12TH THROUGH THE 15TH OF THE MONTH FEATURED FABULOUS EARLY SUMMER WEATHER WITH AVERAGE TEMPERATURES BACK CLOSER TO NORMAL. THE 17TH THROUGH THE 23RD FEATURED A HOT AND HUMID AIRMASS THAT BROUGHT EARLY SUMMER`S UNCOMFORTABLENESS TO WESTERN NEW YORK. THE 17TH ALSO SAW THUNDERSTORMS BLOSSOM THROUGH THE AFTERNOON AND EVENING HOURS, WITH SOME OF THESE STORMS BECOMING SEVERE, DOWNING TREES AND WIRES ACROSS THE INLAND PORTIONS OF WNY. THE FIRST 90 DEGREE TEMPERATURE OF THE YEAR OCCURRED ON THE 17TH WHEN A TEMPERATURE OF 92F DEGREES WAS MEASURED AT THE AIRPORT. THIS IS TWO DAYS EARLIER THAN NORMAL. A FEW STORMS DID FORM ON THE AFTERNOON HOURS OF THE 18TH BRINGING RELIEF FOR SPOTTY LOCATIONS ACROSS WESTERN NEW YORK FROM THE HEAT. A COLD FRONT ON THE 19TH BROUGHT ANOTHER ROUND OF STRONG TO SEVERE THUNDERSTORMS, WITH INLAND AREAS AND THE SOUTHERN TIER RECEIVING THUNDERSTORM WIND DAMAGE. SUNDAY, THE 23RD FEATURED A FEW SHOWERS AND THUNDERSTORMS, BUT ALSO NOTABLE WESTERLY WINDS THROUGH THE AFTERNOON AND EARLY EVENING HOURS. IT WOULD NOT BE UNTIL EARLY ON THE 24TH THAT A MUCH STRONGER FRONT WOULD PASS ACROSS WESTERN NEW YORK THAT SWEPT SUMMER`S HEAT AND HUMIDITY EASTWARD. ON THE 29TH A MOISTURE RICH AIRMASS ALONG A WARM FRONT PRODUCED HEAVY SHOWERS AND A FEW THUNDERSTORMS THROUGH THE MORNING HOURS. THE FINAL DAY OF THE MONTH REMAINED MOSTLY CLOUDY AND LESS HUMID WITH A WESTERLY FLOW. THE WATER TEMPERATURE ON LAKE ONTARIO FOR THE MONTH OF JUNE FLUCTUATED THROUGH THE UPPER 50S TO UPPER 60S. AVERAGE WIND SPEED WAS CLOSE TO NORMAL, AND THE GREATEST WIND GUST OCCURRED IN SYNOPTIC WEST WINDS WITH 47 MPH RECORDED AT THE AIRPORT ON THE 23RD. IN ALL ANOTHER MONTH NOTED FOR ITS WARMTH. && THOMAS $$