Climatological Report (Monthly)
Issued by NWS Buffalo, NY

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000 CXUS51 KBUF 041439 CCA CLMROC CLIMATE REPORT NATIONAL WEATHER SERVICE BUFFALO NY 549 AM EST SUN DEC 1 2013 ...CORRECTED SNOWFALL TOTAL... ................................... ...THE ROCHESTER NY CLIMATE SUMMARY FOR THE MONTH OF NOVEMBER 2013... CLIMATE NORMAL PERIOD 1981 TO 2010 CLIMATE RECORD PERIOD 1871 TO 2013 WEATHER OBSERVED NORMAL DEPART LAST YEAR`S VALUE DATE(S) VALUE FROM VALUE DATE(S) NORMAL ................................................................ TEMPERATURE (F) RECORD HIGH 80 11/02/1933 LOW 1 11/30/1875 HIGHEST 67 11/06 73 11/11 LOWEST 7 11/30 26 11/30 11/29 11/21 AVG. MAXIMUM 45.0 48.0 -3.0 46.7 AVG. MINIMUM 30.0 33.0 -3.0 32.0 MEAN 37.5 40.5 -3.0 39.3 DAYS MAX >= 90 0 0.0 0.0 0 DAYS MAX <= 32 3 1.4 1.6 0 DAYS MIN <= 32 15 14.8 0.2 20 DAYS MIN <= 0 0 0.0 0.0 0 PRECIPITATION (INCHES) RECORD MAXIMUM 7.72 1927 MINIMUM 0.33 1904 TOTALS 2.81 2.94 -0.13 0.71 DAYS >= .01 20 10 DAYS >= .10 9 2 DAYS >= .50 0 0 DAYS >= 1.00 0 0 GREATEST 24 HR. TOTAL 0.66 11/26 TO 11/27 11/12 TO 11/13 SNOWFALL (INCHES) RECORDS TOTAL 24.9 1996 TOTALS 13.5 7.3 6.2 0.8 SINCE 7/1 13.5 7.4 6.1 0.8 SNOWDEPTH AVG. 1 MM MM 0 DAYS >= 1.0 5 2.3 2.7 0 GREATEST SNOW DEPTH 7 11/28 -1 11/26 11/27 24 HR TOTAL 3.6 MM DEGREE_DAYS HEATING TOTAL 817 735 82 763 SINCE 7/1 1372 1368 4 1289 COOLING TOTAL 0 0 0 0 SINCE 1/1 660 539 121 802 ................................................. WIND (MPH) AVERAGE WIND SPEED 10.5 HIGHEST WIND SPEED/DIRECTION 44/250 HIGHEST GUST SPEED/DIRECTION 63/230 DATE 11/18 SKY COVER POSSIBLE SUNSHINE (PERCENT) MM NUMBER OF DAYS FAIR 0 NUMBER OF DAYS PC 9 NUMBER OF DAYS CLOUDY 21 AVERAGE RH (PERCENT) 67 WEATHER CONDITIONS. NUMBER OF DAYS WITH THUNDERSTORM 0 MIXED PRECIP 0 HEAVY RAIN 1 RAIN 4 LIGHT RAIN 13 FREEZING RAIN 0 LT FREEZING RAIN 0 HAIL 1 HEAVY SNOW 1 SNOW 6 LIGHT SNOW 12 SLEET 0 FOG 17 FOG W/VIS <= 1/4 MILE 1 HAZE 6 - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. && ...TYPICAL NOVEMBER WINTER... AFTER A MILD OCTOBER FOR ROCHESTER...NOVEMBER BROUGHT WINTER CHILLS...WINDS AND SNOW. SEVERAL COLD AIR MASSES MOVED ACROSS OUR REGION THROUGHOUT THE MONTH...WHICH LED TO NOVEMBER FINISHING COOLER THAN NORMAL. THESE COLD AIRMASSES ALSO BROUGHT BOTH LAKE SNOWS AND SYNOPTICALLY DRIVEN SNOWS TO THE REGION. IN ADDITION...THERE WERE TWO NOTABLE WIND EVENTS THIS MONTH AS WELL. THE AVERAGE TEMPERATURE FOR THE MONTH OF NOVEMBER WAS 37.5F DEGREES...WHICH FINISHED 3.0 DEGREES BELOW NORMAL. WE HAVE NOT HAD A MONTH FINISH THIS MUCH BELOW NORMAL SINCE DECEMBER OF 2010. THE WARMEST DAY THIS MONTH WAS 67 DEGREES ON THE 6TH. THERE WERE TWO RECORDS THIS MONTH...A NEW RECORD LOW WAS SET ON THE 13TH WITH THE TEMPERATURE DIPPING DOWN TO 17F. A RECORD LOW MAXIMUM WAS TIED ON THE 24TH...WITH THE 24F TYING THE MARK SET ALSO IN 1917. THE 7 NIGHTS OF TEMPERATURES DIPPING DOWN INTO THE TEENS WAS 5 MORE THAN NOVEMBER`S NORMAL...AND MOST SINCE 1936 WHICH ALSO HAD 7 DAYS. PRECIPITATION FOR NOVEMBER WAS 2.81 INCHES...WHICH IS JUST SHY OF NORMAL. PRECIPITATION EVENTS WERE LIGHT WITH NO DAY RECEIVING MORE THAN A HALF INCH OF EITHER RAINFALL...OR SNOW LIQUID EQUIVALENT. TWO THIRDS OF THE MONTHS DAYS RECORDED MEASURABLE PRECIPITATION WHICH IS 5 MORE THAN NORMAL. SNOWFALL FINISHED ABOVE NORMAL FOR THE MONTH. THERE WAS 13.5 INCHES OF SNOW RECORDED FOR NOVEMBER...WHICH IS JUST OVER 7 INCHES MORE THAN NORMAL. THERE WERE 7 CONSECUTIVE DAYS OF MEASURABLE SNOW FROM THE 23RD TO THE 29TH. THIS IS ONE SHY OF THE NOVEMBER RECORD OF 8 SET BACK IN 1873. THE FIRST MEASURABLE SNOW OF THE WINTER SEASON OCCURRED ON THE 8TH WITH 0.2 INCHES OF SNOW RECORDED. IN ALL THERE WERE 10 DAYS OF SNOWFALL...WHICH EXCEEDS THE NORMAL VALUE OF 6. THE ROCHESTER REGION FINISHED THE MONTH WITH SNOW COVERED LAWNS THAT LASTED RIGHT THROUGH THE THANKSGIVING HOLIDAY WEEKEND. STRONG WINDS MARKED THE START OF THE MONTH AS AN AREA OF LOW PRESSURE MOVING THROUGH THE GREAT LAKES IN THE EARLY HOURS OF NOVEMBER RAPIDLY DEEPENED...SWINGING A COLD FRONT ACROSS THE REGION ON THE 1ST. THE CLASSIC TRACK OF A DEEPENING LOW TO WESTERN NEW YORKS NORTH AND WEST BROUGHT STRONG WINDS TO THE REGION FELLING TREES...AND BRINGING DOWN POWER LINES. MUCH CHILLIER AIR BEHIND THE COLD FRONT DROPPED HIGH TEMPERATURES DOWN INTO THE 30S BY SUNDAY THE 3RD. AN AMPLIFIED AND PROGRESSIVE PATTERN FOLLOWED...WITH DAYS ABOVE AND BELOW NORMAL THROUGH THE FIRST HALF OF THE MONTH. BEHIND ANOTHER COLD FRONT ON THE 11TH RAIN CHANGED TO SNOW ON THAT MONDAY EVENING AND BROUGHT ROCHESTER ITS FIRST INCH OF SNOW...WITH 1.2 INCHES RECORDED. SEVERAL AREAS OF LOW PRESSURE PASSED BY THE REGION IN THE 10TH TO 14TH TIME PERIOD MAINTAINING A BREEZE ACROSS THE AREA...WITH A WIND GUST TO 44 MPH ON THE 10TH...THE GUSTIEST OF THE 5 DAYS. ON SUNDAY EVENING THE 17TH A SQUALL LINE PASSED ACROSS WESTERN NEW YORK...THOUGH DAMAGE WAS MINIMAL. WINDS BECAME STRONGER ONCE AGAIN BEHIND A COLD FRONT ON THE 18TH WITH A DEEPENING AREA OF LOW PRESSURE MOVING TO THE NORTHWEST OF WESTERN NEW YORK. WIND GUSTS AGAIN PRODUCED DAMAGE ACROSS THE REGION WITH DOWNED TREES AND POWER LINES. A 63 MPH WIND GUST WAS RECORDED AT THE ROCHESTER AIRPORT. BEHIND THIS STRONG COLD FRONT A PATTERN CHANGE OCCURRED WITH A DEEP AND BROAD POOL OF COLD CANADIAN AIR PASSING OVER THE GREAT LAKES REGION. THIS BROUGHT MAINLY BELOW NORMAL TEMPERATURES AND SOME LAKE EFFECT SNOWS. CONDITIONS WERE NOT PRIMED FOR ANY BIG LAKE EFFECT SNOWS...WITH MAINLY MANAGEABLE EVENTS OCCURRING...AND LARGELY ALONG THE SOUTHERN LAKE ONTARIO SHORELINE AND TO AREAS EAST OF ROCHESTER. A SYNOPTIC LOW BROUGHT WIDESPREAD SNOW LATE ON THE 26TH AND THROUGH THE MORNING HOURS OF WEDNESDAY THE 27TH. THIS STORM BROUGHT A HALF A FOOT OF SNOW TO THE METRO ROCHESTER AREA. THE COLD FINISH TO THE MONTH ALSO BROUGHT THE FORMATION OF ICE ON LOCAL BACKYARD PONDS AND STREAMS. THE AVERAGE WIND SPEED THIS MONTH WAS 10.5 MPH...JUST A FEW TICKS BELOW NORMAL. THE TWO SIGNIFICANT WIND EVENTS BROUGHT A GUST TO 58 MPH ON THE 1ST AND A GUST TO 63 MPH ON THE 18TH. LAKE ONTARIO DROPPED FROM 54 DEGREES DOWN TO 41 DEGREES BY MONTHS END. IN ALL NOVEMBER WAS A CHILLY MONTH...WITH SNOWY CONDITIONS TOWARDS THE END. && THOMAS $$

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