Climatological Report (Monthly)
Issued by NWS Buffalo, NY

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000 CXUS51 KBUF 041529 CLMROC CLIMATE REPORT NATIONAL WEATHER SERVICE BUFFALO NY 1221 PM EDT SUN JUN 1 2014 ................................... ...THE ROCHESTER NY CLIMATE SUMMARY FOR THE MONTH OF MAY 2014... CLIMATE NORMAL PERIOD 1981 TO 2010 CLIMATE RECORD PERIOD 1871 TO 2014 WEATHER OBSERVED NORMAL DEPART LAST YEAR`S VALUE DATE(S) VALUE FROM VALUE DATE(S) NORMAL ................................................................ TEMPERATURE (F) RECORD HIGH 94 05/30/1987 05/14/1974 LOW 26 05/02/1979 05/07/1970 HIGHEST 87 05/13 90 05/31 05/09 LOWEST 39 05/05 32 05/14 AVG. MAXIMUM 69.7 67.6 2.1 72.5 AVG. MINIMUM 49.9 46.3 3.6 50.4 MEAN 59.8 57.0 2.8 61.4 DAYS MAX >= 90 0 0.2 -0.2 1 DAYS MAX <= 32 0 0.0 0.0 0 DAYS MIN <= 32 0 0.6 -0.6 1 DAYS MIN <= 0 0 0.0 0.0 0 PRECIPITATION (INCHES) RECORD MAXIMUM 6.87 1894 MINIMUM 0.24 2007 TOTALS 3.17 2.87 0.30 3.96 DAYS >= .01 15 12 DAYS >= .10 7 9 DAYS >= .50 1 3 DAYS >= 1.00 1 0 GREATEST 24 HR. TOTAL 1.99 05/15 TO 05/16 SNOWFALL (INCHES) RECORDS TOTAL 10.9 1989 TOTALS T 0.4 -0.4 T SINCE 7/1 112.7 99.5 13.2 78.1 SNOWDEPTH AVG. 0 MM MM 0 DAYS >= 1.0 0 0.1 -0.1 0 GREATEST SNOW DEPTH 0 MM 0 MM 24 HR TOTAL T 05/03 DEGREE_DAYS HEATING TOTAL 191 275 -84 174 SINCE 7/1 6986 6578 408 5998 COOLING TOTAL 38 26 12 70 SINCE 1/1 39 30 9 71 .................................................... WIND (MPH) AVERAGE WIND SPEED 8.3 HIGHEST WIND SPEED/DIRECTION 33/290 DATE 05/04 33/280 05/09 HIGHEST GUST SPEED/DIRECTION 48/280 DATE 05/09 SKY COVER NUMBER OF DAYS FAIR 1 NUMBER OF DAYS PC 13 NUMBER OF DAYS CLOUDY 17 AVERAGE RH (PERCENT) 64 WEATHER CONDITIONS. NUMBER OF DAYS WITH THUNDERSTORM 6 MIXED PRECIP 0 HEAVY RAIN 5 RAIN 6 LIGHT RAIN 19 FREEZING RAIN 0 LT FREEZING RAIN 0 HAIL 1 HEAVY SNOW 0 SNOW 0 LIGHT SNOW 0 SLEET 0 FOG 9 FOG W/VIS <= 1/4 MILE 0 HAZE 0 - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. && ...PLEASANT MAY... FOLLOWING A COOL START TO THE SPRING...MAY TURNED INTO A PLEASANT...MILD AND QUIET MONTH. OUTSIDE OF A VERY WARM AND WET MID MONTH PERIOD...MAY WAS COMFORTABLE AND DRY. THE AVERAGE TEMPERATURE OF 59.8F DEGREES WAS ABOUT THREE DEGREES WARMER THAN NORMAL. THIS WAS OUR FIRST ABOVE NORMAL MONTH SINCE OCTOBER OF 2013. THE MONTH FEATURED 7 DAYS OF 80F OR GREATER...WHICH IS THREE MORE THAN NORMAL. THERE WERE NO TEMPERATURE RECORDS THIS MONTH. PRECIPITATION FOR MAY WAS 3.17 INCHES...WHICH IS ABOUT A THIRD OF AN INCH ABOVE NORMAL. MOST OF THE RAIN FELL IN A 4 DAY STRETCH FROM THE 13TH TO 16TH...TOTALING 2.38 INCHES. THERE WERE NO PRECIPITATION RECORDS...THOUGH THE 1.54 INCHES ON THE 16TH WAS TIED FOR THE 12TH WETTEST DAY IN MAY`S RECORDED HISTORY. A LONGWAVE TROUGH REMAINED OVER THE GREAT LAKES REGION THE FIRST WEEK OF THE MONTH WITH COOL DAYTIME TEMPERATURES AND NORMAL OVERNIGHT LOWS. A PATTERN CHANGE ENSUED FOR THE SECOND WEEK OF THE MONTH WITH A RIDGE OF HIGH PRESSURE ALONG THE EASTERN UNITED STATES...AND A WARM FRONT ADVANCING NORTHWARD FROM THE OHIO VALLEY AND TOWARDS THE NORTHEAST. ON THE 13TH A STALLING WARM FRONT SERVED AS A BOUNDARY FOR EVENING FLOODING RAINS ACROSS A PORTION OF THE FINGER LAKES SOUTH OF ROCHESTER...WITH RAINFALL MORE MANAGEABLE THROUGH THE DAY IN THE ROCHESTER METRO AREA. IT REMAINED MILD OVERNIGHT AND WAS AGAIN WARM AND HUMID ON THE 14TH AND 15TH WITH HEAVY RAIN SHOWERS. TEMPERATURES THROUGH THE REMAINDER OF THE MONTH AVERAGE NEAR NORMAL...WITH QUIET WEATHER CONDITIONS. MEMORIAL DAY WEEKEND WAS EXCELLENT WITH BRIGHT SUNNY DAYS ALL THREE DAYS OF THE HOLIDAY WEEKEND. THERE WAS VARIABLE CLOUD COVER IN MAY AND THE MONTH FINISHED AT 2 PERCENT GREATER THAN NORMAL FOR SUNSHINE. THERE WERE 11 MOSTLY SUNNY DAYS...AND JUST 6 MOSTLY CLOUDY DAYS. WINDS WERE MODERATE DURING THE MONTH AND SOUTHWEST STABILIZING LAKE BREEZES WERE COMMON. SPRING`S (MARCH-APRIL-MAY) TEMPERATURES AVERAGED BELOW NORMAL...WITH A COOL MARCH SENDING THE SPRING A FEW DEGREES BELOW NORMAL. IN THE PRECIPITATION DEPARTMENT A WET APRIL CONTRIBUTED TO AN ABOVE NORMAL PRECIPITATION SPRING. HERE ARE SOME SPRING STATS... (VALUE) (DEPARTURE FROM NORMAL) TEMPERATURE...........44.5F (-1.4) PRECIPITATION.........9.38" (+1.28) SNOW..................29.6" (+9.0) && THOMAS $$

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