Climatological Report (Monthly)
Issued by NWS Buffalo, NY

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000 CXUS51 KBUF 020220 CLMROC CLIMATE REPORT NATIONAL WEATHER SERVICE BUFFALO NY 851 AM EST SAT FEB 1 2014 ................................... ...THE ROCHESTER NY CLIMATE SUMMARY FOR THE MONTH OF JANUARY 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 01/25/1950 LOW -17 01/16/1994 HIGHEST 53 01/13 69 01/13 01/11 LOWEST -6 01/03 2 01/26 AVG. MAXIMUM 28.7 31.7 -3.0 38.0 AVG. MINIMUM 12.5 17.6 -5.1 22.3 MEAN 20.6 24.7 -4.1 30.1 DAYS MAX >= 90 0 0.0 0.0 0 DAYS MAX <= 32 18 15.9 2.1 10 DAYS MIN <= 32 29 27.5 1.5 26 DAYS MIN <= 0 6 2.6 3.4 0 PRECIPITATION (INCHES) RECORD MAXIMUM 8.05 1878 MINIMUM 0.52 1921 TOTALS 1.23 2.41 -1.18 1.47 DAYS >= .01 17 15 DAYS >= .10 3 5 DAYS >= .50 0 0 DAYS >= 1.00 0 0 GREATEST 24 HR. TOTAL 0.35 01/01 TO 01/02 SNOWFALL (INCHES) RECORDS TOTAL 61.3 2004 TOTALS 20.8 28.2 -7.4 11.7 SINCE 7/1 56.8 57.4 -0.6 35.1 SNOWDEPTH AVG. 2 4 -2 2 DAYS >= 1.0 6 8.8 -2.8 3 GREATEST SNOW DEPTH 10 01/03 9 01/03 01/01 24 HR TOTAL 8.0 01/02 TO 01/02 DEGREE_DAYS HEATING TOTAL 1371 1251 120 1069 SINCE 7/1 3868 3704 164 3245 COOLING TOTAL 0 0 0 0 SINCE 1/1 0 0 0 0 .......................................................... WIND (MPH) AVERAGE WIND SPEED 11.7 HIGHEST WIND SPEED/DIRECTION 38/250 HIGHEST GUST SPEED/DIRECTION 49/250 DATE 01/06 SKY COVER POSSIBLE SUNSHINE (PERCENT) MM NUMBER OF DAYS FAIR 1 NUMBER OF DAYS PC 13 NUMBER OF DAYS CLOUDY 17 AVERAGE RH (PERCENT) 69 WEATHER CONDITIONS. NUMBER OF DAYS WITH THUNDERSTORM 0 MIXED PRECIP 2 HEAVY RAIN 1 RAIN 2 LIGHT RAIN 6 FREEZING RAIN 0 LT FREEZING RAIN 2 HAIL 0 HEAVY SNOW 3 SNOW 6 LIGHT SNOW 23 SLEET 0 FOG 16 FOG W/VIS <= 1/4 MILE 1 HAZE 10 - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. && ...ARCTIC COLD AND SNOW... JANUARY BEGAN WITH SEVERAL LAKE EFFECT AND SYNOPTIC SNOW EVENTS THAT BLANKETED WESTERN NEW YORK WITH A FRESH COVERING OF SNOW. MORE NOTABLE WERE THE EXTENSIVE ARCTIC AIRMASSES THAT BROUGHT BONE CHILLING COLD AND AT TIMES BRUTAL WIND CHILLS TO THE REGION. THE AVERAGE TEMPERATURE OF 20.6F WAS NEARLY 4 DEGREES BELOW NORMAL...AND MADE FOR THE COLDEST MONTH IN 5 YEARS FOR ROCHESTER NEW YORK. THE 20.6F AVERAGE TEMPERATURE FINISHED TIED FOR 33RD COLDEST IN THE 144 YEARS OF RECORD. WHEN COMPARED TO MORE RECENT JANUARYS THIS JANUARY WAS ABOUT 10 DEGREES COLDER (30.2F/2012, 30.1F/2013). THE FIRST WEEK STARTED COLD AS ARCTIC AIR SURGED ACROSS THE EASTERN US. WITHIN THIS AIRMASS THE THERMOMETER BOTTOMED OUT AT -6F ON THE 3RD DAY OF THE MONTH...BREAKING A DAILY MINIMUM RECORD THAT WAS ESTABLISHED AT -4F IN 1981. THE SECOND WEEK...AND INTO THE START OF THE THIRD WEEK FEATURED TEMPERATURES THAT AVERAGED ABOVE NORMAL...INCLUDING 2 DAYS THAT REACHED INTO THE LOW 50S. A SECOND ROUND OF ARCTIC AIR THEN DROPPED SOUTHWARD WITH POLAR AIR AGAIN POURING OVER EASTERN NORTH AMERICA. THIS SENT WESTERN NEW YORK BACK INTO THE DEEP FREEZE WITH FRIGID AIR AND DANGEROUSLY LOW WIND CHILLS TO CLOSE OUT THE SECOND HALF OF THE MONTH. ONLY A LATE WARM UP ON THE 31ST BROUGHT TEMPERATURES BACK ABOVE NORMAL. PRECIPITATION WAS ABOUT HALF OF NORMAL WITH ONLY 1.23 INCHES RECORDED. A LITTLE RAIN FELL ON THE 5TH AS WELL AS THE 11TH AND 15TH OF THE MONTH. SNOWFALL WAS ALSO BELOW NORMAL THIS MONTH WITH 20.8 INCHES RECORDED AT THE AIRPORT. HALF OF THIS SNOW FELL IN THE FIRST WEEK OF THE MONTH. THERE WERE 16 DAYS OF MEASURABLE SNOWFALL...WHICH IS EXACTLY NORMAL FOR THE MONTH. THE GREATEST ONE DAY SNOW THIS MONTH WAS ON THE 2ND WITH 8.0 INCHES RECORDED AT THE AIRPORT WITH A SYNOPTIC SNOW EVENT. JANUARY BEGAN WITH AN ONGOING LAKE EFFECT SNOW EVENT...THAT WAS QUICKLY FOLLOWED BY SYNOPTIC SNOWS AS A STORM SYSTEM PASSED BY TO OUR SOUTH. SNOWFALL ON THE 2ND DAY OF THE MONTH RANGE FROM JUST UNDER A FOOT NEAR THE AIRPORT TO OVER A FOOT ACROSS SOME OF THE EASTERN AND SOUTHERN SUBURBS. EARLY ON THE 6TH A STRONG COLD FRONT CROSSED WESTERN NEW YORK...TAKING TEMPERATURES FROM THE 40S TO DOWN BELOW THE FREEZING MARK BEFORE SUNRISE. A GUSTY...COLD WESTERLY WIND SENT TEMPERATURES PLUMMETING THROUGH THE DAY INTO THE LOW SINGLE DIGITS. LATER IN THE DAY LAKE EFFECT SNOW ORGANIZED EAST OF LAKE ERIE...AND THIS SNOW BAND OCCASIONALLY REACHED ROCHESTER ON THE 6TH AND 7TH. FOLLOWING THIS EVENT...WHICH WAS MUCH WORSE TO THE WEST OF ROCHESTER...THE UPPER LEVEL TROUGH SHIFTED WESTWARD AND FOCUSED THE COLDEST AIR TOWARDS THE NORTHERN PLAINS. THIS ALLOWED FOR SOME WARMER DAYS ACROSS WESTERN NEW YORK. BETWEEN THE 10TH AND 14TH WE HAD 2 DAYS OF HIGHS IN THE 40S AND 2 DAYS WITH HIGHS IN THE LOW 50S. THESE WARMER TEMPERATURES AND LIGHT RAIN ERASED THE SNOW COVER FROM METRO ROCHESTER. FROM THE 18TH TILL THE LATER DAYS OF THE MONTH A LONG WAVE TROUGH AGAIN SETTLED OVER EASTERN NORTH AMERICA...WITH POLAR FLOW SENDING TEMPERATURES ACROSS WESTERN NEW YORK BACK BELOW NORMAL. GUSTY WINDS THIS PERIOD BROUGHT BRUTAL WIND CHILLS SEVERAL DAYS THIS PERIOD. SNOWFALL EVENTS WERE LIGHT THROUGH THIS PERIOD WITH NO MORE THAN 2 INCHES RECORDED ON ANY DAY. TEMPERATURES BEGAN TO MODERATE SOME TOWARDS THE END OF THE MONTH AS THE CORE OF THE COLD AIR SHIFTED EASTWARD...AND THE LAST DAY OF THE MONTH SAW AVERAGE TEMPERATURES ABOVE NORMAL. WINDS AVERAGED NEAR NORMAL THIS MONTH AND THE STRONGEST GUST (49 MPH) OCCURRED ON THE 6TH. SUNSHINE THIS MONTH FINISHED EXACTLY NORMAL. THERE WERE 6 MOSTLY SUNNY DAYS THIS MONTH...WHILE 17 DAYS FINISHED MOSTLY TO COMPLETELY CLOUDY. SUMMING UP...RELENTLESS COLD FOR WESTERN NEW YORK. && THOMAS $$

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