Climatological Report (Monthly)
Issued by NWS Buffalo, NY

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000 CXUS51 KBUF 050435 CLMROC CLIMATE REPORT NATIONAL WEATHER SERVICE BUFFALO NY 149 PM EDT THU JUL 2 2015 ................................... ...THE ROCHESTER NY CLIMATE SUMMARY FOR THE MONTH OF JUNE 2015... CLIMATE NORMAL PERIOD 1981 TO 2010 CLIMATE RECORD PERIOD 1871 TO 2015 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 83 06/22 90 06/30 06/12 06/17 LOWEST 42 06/03 48 06/20 06/01 AVG. MAXIMUM 75.2 76.6 -1.4 79.7 AVG. MINIMUM 56.5 55.9 0.6 58.0 MEAN 65.9 66.2 -0.3 68.8 DAYS MAX >= 90 0 0.9 -0.9 2 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 6.20 3.34 2.86 2.06 DAYS >= .01 17 8 DAYS >= .10 12 6 DAYS >= .50 5 1 DAYS >= 1.00 2 0 GREATEST 24 HR. TOTAL 1.58 06/10 TO 06/10 SNOWFALL (INCHES) RECORDS TOTAL MM MM TOTALS 0.0 0.0 0.0 0.0 SINCE 7/1 101.9 99.5 2.4 112.7 SNOWDEPTH AVG. 0 MM MM 0 DAYS >= 1.0 0 0.0 0.0 0 GREATEST SNOW DEPTH 0 MM 0 MM 24 HR TOTAL 0.0 DEGREE_DAYS HEATING TOTAL 57 68 -11 29 SINCE 7/1 6871 6646 225 7015 COOLING TOTAL 94 106 -12 150 SINCE 1/1 197 136 61 189 ................................................. WIND (MPH) AVERAGE WIND SPEED 7.6 HIGHEST WIND SPEED/DIRECTION 32/330 HIGHEST GUST SPEED/DIRECTION 58/270 DATE 06/10 SKY COVER POSSIBLE SUNSHINE (PERCENT) MM AVERAGE SKY COVER 0.70 NUMBER OF DAYS FAIR 2 NUMBER OF DAYS PC 11 NUMBER OF DAYS CLOUDY 17 AVERAGE RH (PERCENT) 72 WEATHER CONDITIONS. NUMBER OF DAYS WITH THUNDERSTORM 7 MIXED PRECIP 0 HEAVY RAIN 6 RAIN 13 LIGHT RAIN 18 FREEZING RAIN 0 LT FREEZING RAIN 0 HAIL 0 HEAVY SNOW 0 SNOW 0 LIGHT SNOW 0 SLEET 0 FOG 19 FOG W/VIS <= 1/4 MILE 0 HAZE 2 - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. && ...STORMY AND WET JUNE... ON THE HEELS OF A SOAKING END TO MAY...THE MONTH OF JUNE CONTINUED THE ROUNDS OF SHOWERS AND THUNDERSTORMS. OVER HALF THE DAYS CONTAINED MEASURABLE RAINFALL...AND THIS RAINFALL WAS SPREAD EVENLY THROUGHOUT THE MONTH. THE MAJORITY OF WESTERN NEW YORK FINISHED AN INCH OR MORE ABOVE NORMAL JUNE PRECIPITATION. ALONG WITH THIS RAIN...DAYS WERE CLOUDIER THAN NORMAL AND AIR TEMPERATURES FINISHED THE MONTH SLIGHTLY BELOW NORMAL. THE AVERAGE TEMPERATURE FOR JUNE FINISHED AT 65.9F DEGREES WHICH IS 0.3 DEGREES BELOW NORMAL. THE WARMEST TEMPERATURE THIS MONTH WAS A MERE 83F DEGREES ON THE 12TH AND 22ND. WHILE THERE WERE 12 DAYS THAT REACHED INTO THE 80S...EXACTLY NORMAL...THERE WERE NO DAYS THAT EXCEEDED 85 DEGREES OR MORE FOR THE FIRST TIME SINCE 1982. ON THE 27TH THE TEMPERATURE REACHED A HIGH OF ONLY 65F...WHICH TIED WITH 1905 FOR THE COOLEST MAXIMUM TEMPERATURE FOR THE DATE. PRECIPITATION TOPPED SIX INCHES FOR THE 11TH TIME IN RECORDED HISTORY (RECORDS START 1871). THE 6.20 INCHES WAS NEARLY THREE INCHES ABOVE NORMAL AND MADE FOR THE 9TH WETTEST JUNE ON RECORD. OF THE PAST SIX JUNES...THREE HAVE HAD OVER SIX INCHES OF RAINFALL. THERE WAS MEASURABLE RAINFALL ON 17 DAYS THIS MONTH...TIED FOR 5TH GREATEST OF 145 YEARS OF RECORD. THE RECORD SOAKING RAINFALL OF LATE MAY...THAT ENDED IN THE WEE HOURS OF JUNE WAS JUST A SIGN OF THE PATTERN FOR THE MONTH OF JUNE. A MEAN LONGWAVE TROUGH REMAINED OVER THE GREAT LAKES REGION THIS MONTH...A TROUGH THAT FAVORED STORM DEVELOPMENT OVER THE EASTERN GREAT LAKES REGION. SEVERAL STORM SYSTEMS PRODUCED MODERATE TO HEAVY RAINFALL THROUGH THE MONTH. THE FIRST SIGNIFICANT RAINFALL EVENT CAME ON THE 5TH OF THE MONTH WHEN THUNDERSTORMS DROPPED A HALF TO ONE INCH OF RAINFALL ACROSS THE ROCHESTER METRO AREA. THE SECOND SIGNIFICANT STORM SYSTEM CAME THROUGH WESTERN NEW YORK ON THE 8TH THROUGH THE 10TH OF THE MONTH WHEN A SERIES OF LOW PRESSURE SYSTEMS SPREAD ONE TO TWO INCHES OF RAINFALL ACROSS THE GENESEE VALLEY. THUNDERSTORMS ON THE AFTERNOON OF THE 10TH PRODUCED A WIND GUST TO 58 MPH AT THE ROCHESTER AIRPORT. MORE WIDESPREAD SEVERE THUNDERSTORMS DROPPED ACROSS THE REGION DURING THE EVENING HOURS OF THE 11TH. STRAIGHT LINE WINDS FELLED SEVERAL TREES ACROSS THE ROCHESTER METRO AREA AND A BRIEF TORNADO SPUN UP JUST NORTH OF CANANDAIGUA DURING THE LATE EVENING HOURS. THE NEXT SYSTEM OF NOTE CAME SEVERAL DAYS LATER WHEN ANOTHER WARM FRONT AND HUMID AIRMASS EDGED INTO WESTERN NEW YORK THROUGH THE EARLY MORNING HOURS OF SUNDAY THE 14TH. ONE SLOW MOVING THUNDERSTORM PRODUCE FLASH FLOODING ACROSS WARSAW IN WYOMING COUNTY LATE SUNDAY AFTERNOON. ADDITIONAL SHOWERS AND DRENCHING THUNDERSTORMS PASSED ACROSS WESTERN NEW YORK LATER SUNDAY NIGHT. ANOTHER COLD FRONT CROSSED THE REGION ON THE 23RD WITH EARLY MORNING HEAVY RAIN SHOWERS AND A FEW SEVERE THUNDERSTORMS DOWNING TREES ACROSS WESTERN NEW YORK. LASTLY ANOTHER SYNOPTIC STORM SYSTEM ROSE NORTHWARD FROM THE SOUTH WITH A LENGTHY PERIOD OF HEAVY RAIN SHOWERS ON THE 27TH-28TH. THIS WEEKEND SOAKING RAINFALL BROUGHT SEVERAL INCHES OF RAIN TO WESTERN NEW YORK AND RUINED MANY OUTDOOR PLANS. IN ALL A COOL...AND VERY WET START TO SUMMER. && THOMAS $$

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