Climatological Report (Monthly)
Issued by NWS Buffalo, NY

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000 CXUS51 KBUF 050608 CLMBUF CLIMATE REPORT NATIONAL WEATHER SERVICE BUFFALO NY 1223 PM EST MON DEC 1 2014 ................................... ...THE BUFFALO NY CLIMATE SUMMARY FOR THE MONTH OF NOVEMBER 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 80 11/03/1961 LOW 2 11/30/1875 HIGHEST 68 11/11 67 11/06 LOWEST 14 11/19 15 11/30 11/29 11/24 AVG. MAXIMUM 44.0 47.6 -3.6 44.8 AVG. MINIMUM 31.6 33.9 -2.3 30.5 MEAN 37.8 40.7 -2.9 37.6 DAYS MAX >= 90 0 0.0 0.0 0 DAYS MAX <= 32 5 1.6 3.4 4 DAYS MIN <= 32 16 13.1 2.9 16 DAYS MIN <= 0 0 0.0 0.0 0 PRECIPITATION (INCHES) RECORD MAXIMUM 9.75 1985 MINIMUM 0.51 1904 TOTALS 2.58 4.01 -1.43 2.93 DAYS >= .01 19 17 DAYS >= .10 10 9 DAYS >= .50 1 0 DAYS >= 1.00 0 0 GREATEST 24 HR. TOTAL 0.59 11/19 TO 11/20 10/31 TO 11/01 SNOWFALL (INCHES) RECORDS TOTAL 45.6 2000 TOTALS 20.5 7.9 12.6 10.0 SINCE 7/1 20.5 8.8 11.7 SNOWDEPTH AVG. 1 MM MM 1 DAYS >= 1.0 6 2.1 3.9 3 GREATEST SNOW DEPTH 12 11/20 6 11/28 24 HR TOTAL 7.6 11/19 DEGREE_DAYS HEATING TOTAL 809 728 81 813 SINCE 7/1 1298 1333 -35 1318 COOLING TOTAL 0 0 0 0 SINCE 1/1 516 544 -28 611 .................................................. WIND (MPH) AVERAGE WIND SPEED 12.2 HIGHEST WIND SPEED/DIRECTION 38/240 DATE 11/24 HIGHEST GUST SPEED/DIRECTION 52/250 DATE 11/24 SKY COVER POSSIBLE SUNSHINE (PERCENT) MM NUMBER OF DAYS FAIR 0 NUMBER OF DAYS PC 7 NUMBER OF DAYS CLOUDY 23 AVERAGE RH (PERCENT) 68 WEATHER CONDITIONS. NUMBER OF DAYS WITH THUNDERSTORM 3 MIXED PRECIP 0 HEAVY RAIN 2 RAIN 6 LIGHT RAIN 14 FREEZING RAIN 0 LT FREEZING RAIN 0 HAIL 2 HEAVY SNOW 7 SNOW 7 LIGHT SNOW 17 SLEET 0 FOG 19 FOG W/VIS <= 1/4 MILE 6 HAZE 4 - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. && ...SNOWY START TO WINTER... AFTER A FINE FALL...THE MONTH OF NOVEMBER QUICKLY TURNED TO WINTER`S CHILL...WIND AND SNOW. SEVERAL COLD AIRMASSES SURGED SOUTHWARD ACROSS THE GREAT LAKES DURING THE MONTH WITH THE COLDEST AIRMASS TRIGGERING A HISTORIC LAKE EFFECT SNOW EVENT. THIS HISTORIC SNOW EVENT WAS ACTUALLY MADE UP OF TWO SEPARATE LAKE EFFECT SNOW STORMS THAT COMBINED TO DROP MORE THAN 7 FEET OF SNOW JUST MERE MILES SOUTH OF THE AIRPORT IN BUFFALO NEW YORK. THE AVERAGE TEMPERATURE FOR THE MONTH OF NOVEMBER WAS 37.8F DEGREES...WHICH IS ABOUT 3 DEGREES BELOW NORMAL. THE WARMEST DAY THIS MONTH WAS 68 DEGREES ON THE 11TH. THERE WERE NO TEMPERATURE RECORDS SET THIS MONTH. THERE WERE BRIEF WARM STRETCHES THIS MONTH WITH EACH STRETCH REACHING INTO THE 60S. HOWEVER THESE WARM SPELLS ONLY LASTED ABOUT THREE DAYS EACH AND ENDED WITH THE NEXT SURGE OF ARCTIC AIR. TOTAL PRECIPITATION FOR NOVEMBER WAS 2.58 INCHES...WHICH IS ABOUT AN INCH AND A HALF BELOW NORMAL. THERE WAS NO SIGNIFICANT RAIN THIS MONTH...AS ALL RAINFALL EVENTS WERE A QUARTER OF AN INCH OR LESS. THE GREATEST DAILY PRECIPITATION AMOUNT WAS 0.51 INCHES...WHICH FELL AS SNOW DURING A LAKE EFFECT EVENT. MONTHLY SNOWFALL AT THE AIRPORT WAS 20.5 INCHES...WHICH MAKES THIS THE 10TH SNOWIEST NOVEMBER ON RECORD. THIS MONTHLY AMOUNT MAY BE A BIT DECEIVING ON A REGIONAL SCALE...AS JUST A FEW MILES AWAY 5 TO 7 FEET OF SNOW FELL ACROSS THE BUFFALO SOUTHTOWNS. THERE WAS ONE NEW DAILY RECORD SNOWFALL SET...AS THE 7.6 INCHES THAT FELL ON THE 19TH BROKE THE OLD RECORD OF 5.8 INCHES SET BACK IN 2000. BETWEEN THE 17TH AND 20TH WE HAD A 4-DAY STRETCH WHERE EACH DAY ACCUMULATED AT LEAST ONE INCH OF SNOW...WHICH HAPPENED FOR JUST THE 5TH TIME IN THE MONTH OF NOVEMBER. THE HEMISPHERIC PATTERN THIS MONTH FEATURED A STRONG RIDGE OF HIGH PRESSURE OVER ALASKA AND THE WESTERN UNITED STATES...WITH A TROUGH OF LOW PRESSURE OVER THE EASTERN HALF OF THE UNITED STATES. THIS AMPLIFIED PATTERN LED TO LATE FALLS WARMTH BEING REPLACED BY INCREASING OUTBREAKS OF ARCTIC AIR FROM THE NORTH. THROUGH THE FIRST TWO WEEKS OF NOVEMBER WE HAD TWO BRIEF WARM-UPS...THE 3RD-6TH AND THE 10TH-12TH. AFTER THE FIRST WARM-UP A COLD FRONT BROUGHT OUR FIRST SNOWFLAKES OF THE WINTER SEASON ON THE 7TH. AFTER THE SECOND WARM-UP A COLD FRONT BROUGHT OUR FIRST MEASURABLE SNOWFALL ON THE 13TH OF THE MONTH. TEMPERATURES REMAINED BELOW NORMAL THROUGH THE THIRD WEEKEND OF THE MONTH...WHICH SET THE STAGE FOR AN EPIC LAKE EFFECT SNOW EVENT DOWNWIND OF LAKE ERIE. A DEEP UPPER LEVEL LOW WAS SITUATED OVER THE WESTERN GREAT LAKES WITH COLD SOUTHWEST WINDS RUSHING OVER THE WARM LAKE WATERS OF LAKE ERIE. A BAND OF VERY HEAVY LAKE EFFECT SNOW BROUGHT UPWARDS OF 4 FEET TO LOCALIZED AREAS FROM THE EVENING OF THE 17TH...THROUGH THE FIRST PART OF THE 19TH. THIS BAND REMAINED NEARLY STATIONARY...WHILE PRODUCING SNOWFALL RATES UP TO 5 INCHES PER HOUR. AFTER A BRIEF LULL IN THE ACTION...ANOTHER BAND OF VERY HEAVY LAKE EFFECT SNOW FORMED OFF LAKE ERIE LATER ON THE 19TH AND PRODUCED UPWARDS OF ANOTHER 4 FEET OF SNOW ACROSS SOME OF THE SAME AREAS BY THE 21ST. THIS SECOND SNOW BAND WAS SIMILAR TO THE FIRST SNOW BAND IN THAT IT AGAIN REMAINED NEARLY STATIONARY WITH VERY HIGH SNOWFALL RATES. ONE DIFFERENCE WAS THAT THE SECOND EVENT`S AXIS OF HEAVIEST SNOWFALL WAS JUST A FEW MILES SOUTH FROM THE AXIS OF HEAVIEST SNOW WITH THE FIRST EVENT. IN TOTAL 5 TO 7 FEET OF SNOW SMOTHERED TOWNS JUST TO THE SOUTH OF THE BUFFALO AIRPORT...WHILE JUST OVER A FOOT OF SNOW WAS MEASURED ON THE AIRPORT GROUNDS. MANY TOWNS SOUTH OF THE AIRPORT HAD TRAVEL BANS THAT LASTED DAYS...WITH ALL MAJOR ROADS IN AND AROUND BUFFALO CLOSED FOR A PERIOD OF TIME. THERE WAS A VERY SHARP GRADIENT TO THE SNOWFALL THAT FELL THROUGH THE WEEK...WITH AREAS TO THE NORTH OF THE AIRPORT RECEIVING A FOOT OR LESS OF SNOWFALL. AFTER THIS EPIC EVENT...TEMPERATURES BY MONDAY THE 24TH CLIMBED INTO THE 60S...WHICH QUICKLY MELTED A PORTION OF THE SNOW THAT FELL THE PRIOR WEEK. THE ABLATION OF THE SNOWPACK BROUGHT MINOR FLOODING ON LOCAL CREEKS AND RIVERS...BUT URBAN FLOODING WAS HELD IN CHECK AS A STILL SIZABLE SNOWPACK REMAINED ACROSS THE BUFFALO SOUTHTOWNS. SOUTHWEST WINDS DOMINATED THE MONTH...AND THESE WINDS WERE A BIT GUSTY AS THE MONTHLY WINDS AVERAGED 12.2 MPH. HIGHEST WINDS WERE ON THE 24TH IN WHICH A GUST TO 52 MPH WAS REGISTERED AT THE AIRPORT. LAKE ERIE FINISHED THE MONTH AT 40F...THOUGH IT DID DROP TO 39F FOR A DAY AFTER THE EPIC LAKE EFFECT SNOW STORMS. THIS 39F READING IS THE FIRST SUCH READING IN THE 30S IN NOVEMBER SINCE NOVEMBER OF 1976. IN ALL...A COLD NOVEMBER...THAT WILL LONG BE REMEMBERED FOR THE HISTORIC 7 FEET OF SNOW ACROSS THE SOUTHTOWNS. && THOMAS $$

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