Climatological Report (Monthly)
Issued by NWS Buffalo, NY

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000 CXUS51 KBUF 042224 CLMBUF CLIMATE REPORT NATIONAL WEATHER SERVICE BUFFALO NY 852 AM EST THU JAN 1 2015 ................................... ...THE BUFFALO NY CLIMATE SUMMARY FOR THE MONTH OF DECEMBER 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 74 12/03/1982 LOW -10 12/25/1980 HIGHEST 57 12/24 61 12/05 LOWEST 15 12/31 2 12/25 AVG. MAXIMUM 38.8 36.1 2.7 34.3 AVG. MINIMUM 28.3 24.1 4.2 21.6 MEAN 33.5 30.1 3.4 28.0 DAYS MAX >= 90 0 0.0 0.0 0 DAYS MAX <= 32 8 10.6 -2.6 16 DAYS MIN <= 32 23 24.3 -1.3 27 DAYS MIN <= 0 0 0.5 -0.5 0 PRECIPITATION (INCHES) RECORD MAXIMUM 8.71 1990 MINIMUM 0.69 1943 TOTALS 2.15 3.89 -1.74 4.93 DAYS >= .01 11 18 DAYS >= .10 8 9 DAYS >= .50 0 3 DAYS >= 1.00 0 2 GREATEST 24 HR. TOTAL 0.55 12/10 TO 12/11 SNOWFALL (INCHES) RECORDS TOTAL 82.7 2001 TOTALS 11.3 27.4 -16.1 28.5 SINCE 7/1 31.8 36.2 -4.4 SNOWDEPTH AVG. 1 4 -3 2 DAYS >= 1.0 3 6.5 -3.5 9 GREATEST SNOW DEPTH 6 12/12 9 12/18 12/11 24 HR TOTAL 8.0 12/11 TO 12/11 DEGREE_DAYS HEATING TOTAL 968 1082 -114 1140 SINCE 7/1 2266 2415 -149 2458 COOLING TOTAL 0 0 0 0 SINCE 1/1 516 544 -28 611 ................................................... WIND (MPH) AVERAGE WIND SPEED 10.4 HIGHEST WIND SPEED/DIRECTION 44/240 HIGHEST GUST SPEED/DIRECTION 57/240 DATE 12/25 SKY COVER POSSIBLE SUNSHINE (PERCENT) MM NUMBER OF DAYS FAIR 0 NUMBER OF DAYS PC 9 NUMBER OF DAYS CLOUDY 22 AVERAGE RH (PERCENT) 75 WEATHER CONDITIONS. NUMBER OF DAYS WITH THUNDERSTORM 1 MIXED PRECIP 2 HEAVY RAIN 1 RAIN 4 LIGHT RAIN 16 FREEZING RAIN 0 LT FREEZING RAIN 3 HAIL 1 HEAVY SNOW 1 SNOW 8 LIGHT SNOW 12 SLEET 0 FOG 18 FOG W/VIS <= 1/4 MILE 1 HAZE 5 - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. && DECEMBER STARTED IN TYPICAL FASHION WITH EARLY WINTERS COLDNESS AND SOME SNOW. BY THE CLOSE OF THE SECOND WEEK...A PATTERN CHANGE BROUGHT WARM PACIFIC AIR ACROSS THE GREAT LAKES AND THIS FLOW KEPT THE REGION VIRTUALLY SNOW-FREE FOR THE REMAINDER OF THE MONTH. THE AVERAGE TEMPERATURE FOR THE MONTH OF DECEMBER WAS 33.5F DEGREES...WHICH IS ABOUT THREE AND A HALF DEGREES ABOVE NORMAL. FOR THE FIRST TIME IN FOUR DECEMBERS WE DID NOT REACH ABOVE 60F...THOUGH THE 4 DAYS THAT DID REACH INTO THE 50S WAS ONE MORE THAN NORMAL. THE COLDEST TEMPERATURE THIS MONTH WAS 15F DEGREES WHICH OCCURRED ON THE LAST DAY OF DECEMBER. THERE WERE ONLY TWO DAYS THIS MONTH WHEN THE MINIMUM TEMPERATURE DIPPED DOWN INTO THE TEENS...MAKING THIS DECEMBER THE NINTH SUCH DECEMBER IN RECORDED HISTORY THAT HAD ONLY TWO DAYS OR LESS WITH MINIMUM TEMPERATURES IN THE TEENS. THERE WERE NO TEMPERATURE RECORDS OR EXTREMES THIS MONTH. PRECIPITATION FOR THE MONTH WAS WELL BELOW THE NORMAL OF 3.89 INCHES. RAINFALL ACCOUNTED FOR ABOUT 75 PERCENT OF THE 2.15 INCHES OF PRECIPITATION THIS MONTH. SNOWFALL WAS ALSO WELL BELOW NORMAL FOR DECEMBER. IN WHAT IS USUALLY PRIME SEASON FOR LAKE EFFECT SNOW...THIS MONTH HAD VERY LITTLE LAKE SNOWS TO SPEAK OF. THE 5 DAYS OF MEASURABLE SNOWFALL AT THE AIRPORT WAS TIED FOR THE LEAST AMOUNT OF DAYS WITH MEASURABLE SNOWFALL IN THE PAST 70 YEARS. THROUGH THE MONTH THERE WAS 11.3 INCHES OF SNOW...MUCH LESS THAN NORMAL...AND EVEN LESS THAN NOVEMBER 2014. FOR THE 22ND TIME IN HISTORY...AND FIRST SINCE 1986...MORE SNOWFALL OCCURRED IN THE MONTH OF NOVEMBER THAT PRECEDED THE MONTH OF DECEMBER. THERE WAS A RECORD DAILY SNOWFALL WITH THE 8.0 INCHES OF SYNOPTIC SNOW THAT FELL ON THE 11TH SETTING A NEW DAILY RECORD FOR THE DATE. A COLD FRONT CROSSED THE REGION EARLY ON THE 1ST SENDING MIDNIGHT MILD TEMPERATURES IN THE LOWER 50S DOWN TO THE LOWER 30S BY AFTERNOON. THROUGH THE FIRST TWO WEEKS A TROUGH OF LOW PRESSURE OVER THE EASTERN UNITED STATES ALLOWED FOR A COLD CANADIAN AIRMASS TO DROP SOUTHWARD ACROSS THE GREAT LAKES. HOWEVER CONDITIONS WERE NOT FAVORABLE FOR LAKE EFFECT SNOW. THERE WAS ONE MAJOR SYNOPTIC STORM SYSTEM...A CLOSED LOW THAT DROPPED A HALF TO ONE FOOT OF SNOW ACROSS WESTERN NEW YORK. BEHIND THIS SYNOPTIC SYSTEM FREEZING DRIZZLE FELL THROUGH THE DURATION OF THE WEEKEND...THE 12TH THROUGH THE 14TH. FOR THE REMAINDER OF THE MONTH A ZONAL WEST TO EAST FLOW DOMINATED...WITH JUST BRIEF INTRUSIONS OF COLDER AIR. AFTER A RELATIVELY QUIET THIRD WEEK...A CONVECTIVE LINE OF SHOWERS AHEAD OF A COLD FRONT CROSSED THE REGION CHRISTMAS EVE...BRINGING DAMAGING WIND GUSTS ACROSS THE NIAGARA FRONTIER...DOWNING POWER POLES AND TREES IN VARIOUS LOCATIONS. ALSO TWO PARTIAL BUILDING COLLAPSES OCCURRED IN BUFFALO. HIGH WINDS CONTINUED INTO CHRISTMAS DAY WITH ADDITIONAL ISOLATED DAMAGE. THE MONTH ENDED ON A COLD NOTE WITH LIGHT LAKE EFFECT SNOW FALLING THROUGHOUT THE REGION. THE LAKE ERIE WATER TEMPERATURE MEASURED HERE IN BUFFALO FELL FROM A HIGH OF 42 DEGREES ON THE 6TH DOWN TO 38 BY MONTHS END. BY THE END OF THE MONTH THE LAKE WAS ABOUT 3 DEGREES WARMER THAN NORMAL. THERE WERE TWO DAYS IN WHICH WIND GUSTS TOPPED 50 MPH...ON THE 24TH (51 MPH) AND THE 25TH (57 MPH). IN ALL A MILD DECEMBER WITH A LACK OF TYPICAL LAKE EFFECT SNOW. && THOMAS $$

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