Climatological Report (Monthly)
Issued by NWS Buffalo, NY

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000 CXUS51 KBUF 052303 CLMROC CLIMATE REPORT NATIONAL WEATHER SERVICE BUFFALO NY 913 AM EST MON FEB 1 2016 ................................... ...THE ROCHESTER NY CLIMATE SUMMARY FOR THE MONTH OF JANUARY 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 01/25/1950 LOW -17 01/16/1994 HIGHEST 58 01/31 57 01/04 LOWEST 5 01/24 -9 01/14 AVG. MAXIMUM 35.1 31.7 3.4 29.2 AVG. MINIMUM 19.6 17.6 2.0 9.9 MEAN 27.4 24.7 2.7 19.5 DAYS MAX >= 90 0 0.0 0.0 0 DAYS MAX <= 32 12 15.9 -3.9 20 DAYS MIN <= 32 28 27.5 0.5 30 DAYS MIN <= 0 0 2.6 -2.6 4 PRECIPITATION (INCHES) RECORD MAXIMUM 8.05 1878 MINIMUM 0.52 1921 TOTALS 1.52 2.41 -0.89 1.74 DAYS >= .01 18 17 DAYS >= .10 6 6 DAYS >= .50 0 1 DAYS >= 1.00 0 0 GREATEST 24 HR. TOTAL 0.48 01/10 TO 01/10 01/03 TO 01/04 01/04 TO 01/04 01/04 TO 01/04 SNOWFALL (INCHES) RECORDS TOTAL 61.3 2004 TOTALS 20.2 28.2 -8.0 17.7 SINCE 7/1 23.7 57.4 -33.7 43.4 SNOWDEPTH AVG. 1 4 -3 2 DAYS >= 1.0 7 8.8 -1.8 9 GREATEST SNOW DEPTH 5 01/23 4 01/31 01/22 01/13 01/21 24 HR TOTAL 4.0 01/18 TO 01/18 01/04 TO 01/04 01/04 TO 01/04 01/04 TO 01/04 DEGREE_DAYS HEATING TOTAL 1159 1251 -92 1402 SINCE 7/1 2898 3704 -806 3622 COOLING TOTAL 0 0 0 0 SINCE 1/1 0 0 0 0 ..................................................... WIND (MPH) AVERAGE WIND SPEED 10.7 HIGHEST WIND SPEED/DIRECTION 46/250 HIGHEST GUST SPEED/DIRECTION 58/250 DATE 01/10 SKY COVER POSSIBLE SUNSHINE (PERCENT) MM AVERAGE SKY COVER 0.80 NUMBER OF DAYS FAIR 1 NUMBER OF DAYS PC 7 NUMBER OF DAYS CLOUDY 23 AVERAGE RH (PERCENT) 68 WEATHER CONDITIONS. NUMBER OF DAYS WITH THUNDERSTORM 0 MIXED PRECIP 0 HEAVY RAIN 0 RAIN 1 LIGHT RAIN 5 FREEZING RAIN 0 LT FREEZING RAIN 1 HAIL 0 HEAVY SNOW 2 SNOW 8 LIGHT SNOW 22 SLEET 0 FOG 14 FOG W/VIS <= 1/4 MILE 1 HAZE 8 - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. && ...CHANGEABLE MONTH WITH LIGHT LAKE EFFECT SNOWS AND SPURTS OF MILD TEMPERATURES... JANUARY RETURNED TO SOME RESEMBLANCE OF WINTER ACROSS WESTERN NEW YORK...THIS AFTER A REMARKABLY WARM DECEMBER. BRIEF BURSTS OF COLDER...ARCTIC AIR FLOWED OVER THE OPEN LAKE WATERS AND BROUGHT SEVERAL LIGHT LAKE EFFECT SNOW EVENTS TO THE REGION. THERE WERE ALSO SEVERAL WARM STINTS ACROSS WESTERN NEW YORK...WITH A JANUARY THAW THE LAST SEVERAL DAYS OF THE MONTH MELTING ALL REMAINING SNOW PACK. THE AIR TEMPERATURE THIS MONTH AVERAGED 27.4F DEGREES...WHICH IS 2.7 DEGREES ABOVE NORMAL. ABOVE NORMAL DAILY TEMPERATURES EDGED OUT BELOW NORMAL TEMPERATURES 18 TO 11 THIS MONTH. THERE WERE 19 DAYS THAT ROSE ABOVE THE FREEZING MARK THIS MONTH...WHICH IS FOUR DAYS MORE THAN NORMAL. THE HIGHEST TEMPERATURE OCCURRED IN THE LAST HOUR OF THE MONTH...THIS AT 58F DEGREES. BOTH PRECIPITATION AND SNOWFALL FINISHED MUCH BELOW NORMAL...WITH 1.52 INCHES OF PRECIPITATION RECORDED...AND 20.2 INCHES OF SNOWFALL. THERE WERE SEVERAL RAIN EVENTS THROUGH THE MONTH...BUT NOTHING MAJOR AS ALL DAILY EVENTS REMAINED UNDER A HALF AN INCH OF LIQUID. THE GREATEST DAILY SNOWFALL WAS 4.0 INCHES MEASURED ON THE 18TH. THERE WERE 17 DAYS THAT RECORDED MEASURABLE SNOWFALL...TYPICAL FOR JANUARY. JANUARY BEGAN WITH AN ONGOING LAKE EFFECT SNOW EVENT OFF LAKE ERIE...WITH THE EASTERN REACH OF THE SNOW BAND EXTENDING TO THE GREATER ROCHESTER AREA. A STRONG AREA OF HIGH PRESSURE CLEARED THE REGION OF ANY SNOW SHOWERS BY THE EVENING OF THE 4TH WITH CLEAR SKIES OVERNIGHT ALLOWING FOR TEMPERATURES TO DROP TO 10F. BEHIND THIS HIGH PRESSURE SYSTEM A MILDER SOUTH FLOW COMMENCED WITH TEMPERATURES SLOWLY INCREASING TO 51F BY THE 10TH OF THE MONTH. A STRONG COLD FRONT CROSSED THE REGION LATER ON SUNDAY THE 10TH WITH TREE DAMAGE ACROSS WESTERN NEW YORK. BEHIND THIS COLD FRONT THE FIRST OF THREE LAKE EFFECT SNOW EVENTS OCCURRED. THIS FIRST LAKE EFFECT SNOW EVENT PRIMARILY OFF LAKE ERIE OCCURRED...JANUARY 10TH THROUGH 12TH AND BROUGHT AN INCH OR TWO OF SNOW ACROSS THE NORTHERN GENESEE VALLEY. THE SECOND EVENT...A LENGTHY AND OSCILLATING BAND OF SNOW OFF LAKE ERIE...PRODUCED AGAIN A FEW INCHES AROUND THE ROCHESTER METRO AREA FROM THE 12TH THROUGH THE 14TH. AFTER A QUIET WEEKEND OF THE 16TH AND 17TH...THE THIRD EVENT OCCURRED ABOUT A WEEK LATER...AND PRODUCED A LONG DURATION...LIGHT SNOWFALL EVENT ON A NORTHWEST WIND. THIS EVENT FROM THE 19TH THROUGH THE 21ST DROPPED OVER A HALF A FOOT OF SNOW SOUTH OF LAKE ONTARIO...WITH THE HEAVIEST BANDS DURING THE DAY THURSDAY THE 21ST. TEMPERATURES REMAINED BELOW NORMAL FROM THE 17TH THROUGH THE 24TH...INCLUDING 4 DAYS REGISTERING LOWS IN THE SINGLE DIGITS. A MILDER AIRMASS SURGED NORTHWARD ACROSS WESTERN NEW YORK. THIS AIRMASS EVENTUALLY WARMED TO THE UPPER 50S BY THE CLOSE OF THE MONTH...THE BEGINNING OF A JANUARY THAW. WINDS WERE TYPICAL FOR FEBRUARY...AVERAGING 10.7 MPH...WHICH IS A TICK ABOVE NORMAL. THE GREATEST WIND GUST OCCURRED WITH THE COLD FRONT PASSAGE ON SUNDAY THE 10TH...WHEN A GUST TO 58 MPH WAS RECORDED AT THE ROCHESTER AIRPORT. IN ALL A RETURN TO FAIRLY NORMAL WINTER CONDITIONS WITH LAKE SNOWS...THOUGH BRIEF MILD INTERRUPTION WERE FELT. && THOMAS $$

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