Climatological Report (Monthly)
Issued by NWS Buffalo, NY

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245 CXUS51 KBUF 061622 CLMBUF CLIMATE REPORT NATIONAL WEATHER SERVICE BUFFALO NY 755 AM EST SUN JAN 1 2017 ................................... ...THE BUFFALO NY CLIMATE SUMMARY FOR THE MONTH OF DECEMBER 2016... CLIMATE NORMAL PERIOD 1981 TO 2010 CLIMATE RECORD PERIOD 1871 TO 2016 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 58 12/26 71 12/14 LOWEST 9 12/16 23 12/28 12/15 AVG. MAXIMUM 36.2 36.1 0.1 48.6 AVG. MINIMUM 26.1 24.1 2.0 35.6 MEAN 31.2 30.1 1.1 42.1 DAYS MAX >= 90 0 0.0 0.0 0 DAYS MAX <= 32 9 10.6 -1.6 1 DAYS MIN <= 32 23 24.3 -1.3 11 DAYS MIN <= 0 0 0.5 -0.5 0 PRECIPITATION (INCHES) RECORD MAXIMUM 8.71 1990 MINIMUM 0.69 1943 TOTALS 4.06 3.89 0.17 2.90 DAYS >= .01 19 16 DAYS >= .10 12 10 DAYS >= .50 2 2 DAYS >= 1.00 0 0 GREATEST 24 HR. TOTAL 1.21 11/30 TO 12/01 12/26 TO 12/27 12/27 TO 12/27 12/27 TO 12/27 SNOWFALL (INCHES) RECORDS TOTAL 82.7 2001 TOTALS 30.1 27.4 2.7 1.0 SINCE 7/1 31.0 36.2 -5.2 SNOWDEPTH AVG. 3 4 -1 0 DAYS >= 1.0 6 6.5 -0.5 0 GREATEST SNOW DEPTH 13 12/17 1 12/29 24 HR TOTAL 9.6 MM DEGREE_DAYS HEATING TOTAL 1040 1082 -42 703 SINCE 7/1 2010 2415 -405 1747 COOLING TOTAL 0 0 0 0 SINCE 1/1 939 544 395 657 ........................................................ WIND (MPH) AVERAGE WIND SPEED 13.2 HIGHEST WIND SPEED/DIRECTION 37/240 HIGHEST GUST SPEED/DIRECTION 49/220 DATE 12/27 SKY COVER POSSIBLE SUNSHINE (PERCENT) MM NUMBER OF DAYS FAIR 1 NUMBER OF DAYS PC 6 NUMBER OF DAYS CLOUDY 24 AVERAGE RH (PERCENT) 72 WEATHER CONDITIONS. NUMBER OF DAYS WITH THUNDERSTORM 1 MIXED PRECIP 0 HEAVY RAIN 4 RAIN 7 LIGHT RAIN 14 FREEZING RAIN 0 LT FREEZING RAIN 2 HAIL 0 HEAVY SNOW 2 SNOW 9 LIGHT SNOW 23 SLEET 1 FOG 19 FOG W/VIS <= 1/4 MILE 1 HAZE 9 - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. && ...WINDY DECEMBER WITH SNOWS... A PERSISTENT NORTHWEST FLOW THIS MONTH BROUGHT FREQUENT WINDS ACROSS THE BUFFALO METRO AREA, WHILE PRODUCING LAKE EFFECT SNOWS THAT LARGELY REMAINED JUST SOUTH OF THE METRO AREA. THE BULK OF THE WINTRY WEATHER CAME MID-MONTH WHEN A DEEP...BUT NOT EXTREME ARCTIC AIRMASS DROPPED ACROSS THE REGION WITH WINTER`S CHILLS, AND PERSISTENT LAKE EFFECT SNOWS. THE AVERAGE TEMPERATURE THIS MONTH WAS 31.2F WHICH IS JUST OVER A DEGREE ABOVE NORMAL. THERE WERE 11 DAYS THAT AVERAGED BELOW NORMAL, CENTERED AROUND THE MIDDLE OF THE MONTH, WITH BOTH THE START AND END OF THE MONTH SIDING ABOVE NORMAL. THERE WAS ONE RECORD HIGH TEMPERATURE, THIS ON THE 26TH WHEN THE TEMPERATURE SPIKED TO 58F DEGREES LATE IN THE DAY, BREAKING THE OLD RECORD OF 55F LAST SET BACK IN 1982. PRECIPITATION FOR THE MONTH AVERAGED JUST ABOVE NORMAL, BOTH IN LIQUID AND IN THE SNOW DEPARTMENT. THE 4.06 INCHES OF PRECIPITATION WAS ALMOST A FEW TENTHS OF AN INCH ABOVE NORMAL, WHILE THE SNOWFALL OF 30.1 INCHES WAS 2.7 INCHES ABOVE THE MONTHLY NORMAL. THIS 30.1 INCHES OF SNOW WAS THE GREATEST MONTHLY TOTAL FOR DECEMBER SINCE 32.0 INCHES FELL IN 2010. THE WETTEST DAY THIS MONTH WAS ON THE 14TH WHEN 0.86 INCHES OF LIQUID FROM 9.6 INCHES OF SNOW FELL. IN ALL THE PRECIPITATION THIS MONTH PRODUCED LITTLE HYDROLOGICAL IMPACT ON AREA STREAMS AND CREEKS. THE FIRST FEW HOURS OF THE MONTH REMAINED VERY MILD WITH DECEMBER STARTING IN THE UPPER 40S AND LOW 50S ACROSS WESTERN NEW YORK. A COLD FRONT SWEPT THROUGH THE REGION EARLY, WITH COOLER TEMPERATURES THE NEXT FEW DAYS AND LAKE EFFECT RAIN AND SNOW SHOWERS. IT WOULD NOT BE UNTIL A STRONGER COLD FRONT PASSED ON THE 8TH THAT HEAVY AND PROLONGED BANDS OF LAKE EFFECT SNOW FORMED EAST OF THE EASTERN GREAT LAKES. THE FIRST MAJOR LAKE EFFECT EVENT FOR THE MONTH BEGAN IN THE EARLY MORNING OF THE 8TH AS MUCH COLDER AIR DEEPENED OVER THE EASTERN GREAT LAKES. THIS EVENT PRIMARILY BLITZED SKI COUNTRY AND THE SOUTHERN TIER WITH HEAVY SNOW. UPWARDS TO THREE FEET OF SNOW FELL DURING THIS EVENT. A NORTHWEST FLOW ALSO BROUGHT SEVERAL INCHES OF SNOW ACROSS THE SOUTHERN SHORES OF LAKE ONTARIO AND INLAND ACROSS THE GENESEE VALLEY. AS THE EVENT DREW TO A CLOSE, THE BAND OF SNOW LIFTED NORTHWARD TOWARDS BUFFALO AND THOUGH IN A WEAKER STATE IT DID DROP 5 TO 6 INCHES OF SNOW ACROSS THE METRO BUFFALO AREA LATE ON THE 11TH AND THROUGH THE EARLY MORNING HOURS OF THE 12TH. MUCH OF THE SNOW ENDED BY THE MORNING RUSH HOUR OF MONDAY THE 12TH FOR BUFFALO. ON THE HEALS OF THE FIRST MAJOR EVENT THIS MONTH, A SECOND EVENT FORMED OVER WESTERN NEW YORK, THIS AS AN ARCTIC FRONT DROPPED TOWARDS THE REGION. INITIALLY A SOUTHWEST WIND AHEAD OF THE ARCTIC AIRMASS BROUGHT LAKE EFFECT SNOW ACROSS METRO BUFFALO AND TOWARDS THE ROCHESTER AREA ON THE AFTERNOON HOURS OF THE 14TH. SNOW PILED QUICKLY...IMPACTING THE AFTERNOON COMMUTE AND EVENING DRIVE THROUGH BUFFALO. SNOW PILED UP TOWARDS 10 INCHES ACROSS METRO BUFFALO BEFORE WINDS SHIFTED THE BANDS OF SNOW SOUTHWARD TOWARDS THE SOUTHERN TIER. AN ARCTIC FRONT SLOWLY DROPPED SOUTHWARD OVER LAKE ONTARIO DURING THE DAY AND EVENING HOURS OF THURSDAY THE 15TH. STRONG WINDS OFF LAKE ONTARIO COMBINED WITH HEAVY SNOW BROUGHT BLIZZARD LIKE CONDITIONS TO THE SOUTHEASTERN SHORELINE OF LAKE ONTARIO...WITH ROCHESTER RECEIVING A DAILY RECORD AMOUNT OF SNOW OF 10.6 INCHES. FRIDAY BANDS OF SNOW OFF BOTH LAKES LIFTED BACK NORTHWARD, WITH LAKE ERIE STILL GOING STRONG THROUGH FRIDAY AFTERNOON AND PRODUCING ANOTHER 6 INCHES OF SNOW ACROSS BUFFALO...INCLUDING A SNOWFALL RATE OF 3 INCHES PER HOUR. BETWEEN THESE TWO EVENTS, AND A LAKE EFFECT EVENT TO CLOSE OUT THE YEAR A MINOR...BUT IMPACTFUL FREEZING RAIN EVENT GLAZED MUCH OF WESTERN NEW YORK SATURDAY NIGHT THROUGH SUNDAY MORNING THE 18TH. THIS GLAZE BROUGHT NUMEROUS ACCIDENTS SATURDAY EVENING THROUGH SUNDAY MORNING. FINALLY AS THE YEAR CLOSED OUT, A THIRD LAKE EFFECT EVENT UNFOLDED ACROSS WESTERN NEW YORK. THIS EVENT OVER THE FINAL DAYS OF THE MONTH PRODUCED ONE TO TWO FEET OF SNOW ACROSS SOUTHWESTERN NEW YORK STATE, WHILE CLOSER TO BUFFALO JUST SEVERAL INCHES OF SNOW FELL. LAKE ERIE FELL FROM 47F AT MONTHS START TO 34F DEGREES BY THE MONTHS END. THOUGH THERE WERE SOME BRIEF INSTANCES OF ICE ON THE SHORELINE OF THE LAKE, VIRTUALLY THE WHOLE LAKE REMAINED FREE OF ICE THROUGH THE MONTH. WINDS WERE GUSTY THROUGH MONTH AVERAGING 1.1 MPH ABOVE NORMAL. IN THE LAST 10 YEARS, THIS PAST DECEMBER WAS TIED FOR THE 4TH WINDIEST MONTH ON RECORD, TRAILING THE WINDIEST MONTH IN THE LAST DECADE (FEB `07 AND DEC `08) BY 0.8 MPH. IN ALL A TYPICAL WINTER MONTH, WITH COLD WINDS AND LAKE EFFECT SNOWS. && THOMAS $$

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