Climatological Report (Monthly)
Issued by NWS Buffalo, NY

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164 CXUS51 KBUF 052236 CLMROC CLIMATE REPORT NATIONAL WEATHER SERVICE BUFFALO NY 541 AM EST FRI DEC 1 2017 ................................... ...THE ROCHESTER NY CLIMATE SUMMARY FOR THE MONTH OF NOVEMBER 2017... CLIMATE NORMAL PERIOD 1981 TO 2010 CLIMATE RECORD PERIOD 1871 TO 2017 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 66 11/28 73 11/18 11/02 LOWEST 20 11/10 27 11/12 AVG. MAXIMUM 48.8 48.0 0.8 54.0 AVG. MINIMUM 32.2 33.0 -0.8 36.5 MEAN 40.5 40.5 0.0 45.2 DAYS MAX >= 90 0 0.0 0.0 0 DAYS MAX <= 32 1 1.4 -0.4 0 DAYS MIN <= 32 17 14.8 2.2 9 DAYS MIN <= 0 0 0.0 0.0 0 PRECIPITATION (INCHES) RECORD MAXIMUM 7.72 1927 MINIMUM 0.33 1904 TOTALS 4.13 2.94 1.19 2.60 DAYS >= .01 16 16 DAYS >= .10 8 7 DAYS >= .50 1 2 DAYS >= 1.00 1 0 GREATEST 24 HR. TOTAL 1.65 11/05 TO 11/05 11/02 TO 11/03 11/03 TO 11/03 11/03 TO 11/03 SNOWFALL (INCHES) RECORDS TOTAL 24.9 1996 TOTALS 2.6 7.3 -4.7 15.0 SINCE 7/1 2.6 7.4 -4.8 15.9 SNOWDEPTH AVG. 0 MM MM 1 DAYS >= 1.0 1 2.3 -1.3 2 GREATEST SNOW DEPTH 1 11/10 12 11/21 24 HR TOTAL 1.2 11/10 TO 11/10 11/03 TO 11/03 11/03 TO 11/03 11/03 TO 11/03 DEGREE_DAYS HEATING TOTAL 729 735 -6 585 SINCE 7/1 1091 1368 -277 978 COOLING TOTAL 0 0 0 0 SINCE 1/1 655 539 116 978 .................................................... WIND (MPH) AVERAGE WIND SPEED 9.5 HIGHEST WIND SPEED/DIRECTION 32/210 HIGHEST GUST SPEED/DIRECTION 43/210 DATE 11/05 SKY COVER POSSIBLE SUNSHINE (PERCENT) MM AVERAGE SKY COVER 0.80 NUMBER OF DAYS FAIR 1 NUMBER OF DAYS PC 13 NUMBER OF DAYS CLOUDY 16 AVERAGE RH (PERCENT) 73 WEATHER CONDITIONS. NUMBER OF DAYS WITH THUNDERSTORM 2 MIXED PRECIP 0 HEAVY RAIN 2 RAIN 11 LIGHT RAIN 17 FREEZING RAIN 0 LT FREEZING RAIN 0 HAIL 1 HEAVY SNOW 0 SNOW 4 LIGHT SNOW 9 SLEET 0 FOG 17 FOG W/VIS <= 1/4 MILE 1 HAZE 0 - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. && ...UNSETTLED NOVEMBER... A CONSTANT FLOW OF PACIFIC AIR BOTTLED COLDER AIR WELL TO THE NORTH THIS MONTH, WITH THE ONE TRUE, BRIEF SURGE OF ARCTIC AIR MID-MONTH PRODUCING THE FIRST CALENDAR DAY INCH OF SNOW AT THE ROCHESTER AIRPORT. THERE WERE SEVERAL SOAKING RAINFALL EVENTS THROUGH THE MONTH THAT BROUGHT NOVEMBER`S TOTAL PRECIPITATION TO OVER AN INCH ABOVE NORMAL. THE MONTHLY TEMPERATURE AVERAGED 40.5F WHICH IS EXACTLY NORMAL, AND WAS THE SECOND MONTH THIS YEAR THAT FINISHED EXACTLY NORMAL. THERE WAS ONE BRIEF ARCTIC BLAST THIS MONTH, THIS ON THE 10-11TH, THAT DROPPED TEMPERATURES TO NEAR NORMAL. THE FIRST 32F READING OF THE COOL SEASON OCCURRED ON NOVEMBER 7TH. THIS MADE FOR 212 DAYS OF ABOVE FREEZING DAYS...WHICH IS THE 2ND LONGEST STREAK (216/1938). PRECIPITATION TOTALED 4.13 INCHES FOR THE MONTH. MUCH OF THIS PRECIPITATION OCCURRED OVER THE 2ND THROUGH THE 6TH, INCLUDING THE GREATEST ACCUMULATION THIS MONTH OF 1.65" ON THE 5TH. THERE WERE 16 DAYS WITH MEASURABLE PRECIPITATION, 1 DAY GREATER THAN NORMAL. THERE WERE ALSO 4 DAYS WITH MEASURABLE SNOW...THE SAME TOTAL OF DAYS AS LAST NOVEMBER THOUGH NOVEMBER 2016 TOTALED 15.0 INCHES OF SNOW VS. 2.6" NOVEMBER 2017. THE MONTH OF NOVEMBER CONTINUED THE WET PATTERN FROM THE END OF OCTOBER, WITH 6 CONSECUTIVE DAYS OF RAIN CREATING A SOGGY GROUND ACROSS WESTERN NEW YORK. HIGH PRESSURE THEN BROUGHT COOLER, BUT MUCH DRIER WEATHER FROM THE 7TH THROUGH THE MORNING OF THE 9TH. A SHARP COLD FRONT CROSSED WESTERN NEW YORK LATER ON THE 9TH, AND USHERED IN THE COLDEST AIR OF THE WINTER SEASON THUS FAR FOR THE 10TH AND 11TH. THIS COLD AIRMASS ALSO PRODUCED THE FIRST CALENDAR DAY INCH OF SNOW AT THE ROCHESTER AIRPORT ON THE 10TH. COOL AND UNSETTLED WEATHER REMAINED ACROSS WESTERN NEW YORK MID- MONTH. THE FIRST LAKE EFFECT SNOW EVENT OCCURRED ON SUNDAY THE 19TH THROUGH MONDAY THE 20TH. BEHIND A COLD FRONT, LAKE EFFECT SNOW BEGAN THROUGH THE MORNING HOURS SUNDAY EAST OF LAKE ERIE, WHILE OFF LAKE ONTARIO, THE LAKE EFFECT SNOW BECAME HEAVIEST MONDAY MORNING WELL TO THE EAST OF ROCHESTER, WITH UP TO A FOOT OF SNOW FALLING OVER THE SOUTHERN TUG HILL REGION. THIS EVENT PRODUCED 1.1 INCHES OF SNOW ON THE 19-20TH IN ROCHESTER. THE LAST WEEK OF THE MONTH FINISHED WITH 6 OF 7 DAYS ABOVE TEMPERATURE NORMAL, INCLUDING 66F ON THE 28TH WITH GUSTY SOUTHERLY WINDS, THAT BROUGHT NOVEMBER`S AVERAGE TEMPERATURE UP TO EXACTLY NORMAL. WINDS AVERAGED NEAR NORMAL THIS MONTH EVEN THOUGH THERE WERE NO HIGH WIND EVENTS FOR THE MONTH. THE HIGHEST GUST WAS 43 MPH ON THE 5TH. IN ALL A COOL, UNSETTLED MONTH FEATURING LITTLE SNOW. && THOMAS $$

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