Climatological Report (Monthly)
Issued by NWS Buffalo, NY

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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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