Climatological Report (Monthly)
Issued by NWS Buffalo, NY

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000
CXUS51 KBUF 011922
CLMROC

CLIMATE REPORT
NATIONAL WEATHER SERVICE BUFFALO NY
757 AM EST WED FEB 1 2017

...................................

...THE ROCHESTER NY CLIMATE SUMMARY FOR THE MONTH OF JANUARY 2017...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1871 TO 2017

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            56   01/12                         58  01/31
LOWEST              7   01/08                          5  01/24
                        01/07
                        01/06
AVG. MAXIMUM     37.3              31.7     5.6     35.1
AVG. MINIMUM     25.5              17.6     7.9     19.6
MEAN             31.4              24.7     6.7     27.4
DAYS MAX >= 90      0               0.0     0.0        0
DAYS MAX <= 32     10              15.9    -5.9       12
DAYS MIN <= 32     21              27.5    -6.5       28
DAYS MIN <= 0       0               2.6    -2.6        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         8.05   1878
 MINIMUM         0.52   1921
TOTALS           2.75              2.41    0.34     1.52
DAYS >= .01        16                                 18
DAYS >= .10         6                                  6
DAYS >= .50         3                                  0
DAYS >= 1.00        0                                  0
GREATEST
 24 HR. TOTAL    0.83   01/17 TO 01/18

SNOWFALL (INCHES)
RECORDS
 TOTAL           61.3   2004
TOTALS           11.8              28.2   -16.4     20.2
SINCE 7/1        57.0              57.4    -0.4     23.7
SNOWDEPTH AVG.      0                 4      -4        1
DAYS >= 1.0         4               8.8    -4.8        7
GREATEST
 SNOW DEPTH         5   01/25                          5  01/23
                                                          01/22
                                                          01/21
 24 HR TOTAL      4.8   01/24 TO 01/24

DEGREE_DAYS
HEATING TOTAL    1036              1251    -215     1159
 SINCE 7/1       3049              3704    -655     2898
COOLING TOTAL       0                 0       0        0
 SINCE 1/1          0                 0       0        0
.........................................................

WIND (MPH)
AVERAGE WIND SPEED              10.1
HIGHEST WIND SPEED/DIRECTION    41/260
HIGHEST GUST SPEED/DIRECTION    58/260    DATE  01/11

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.80
NUMBER OF DAYS FAIR            2
NUMBER OF DAYS PC              7
NUMBER OF DAYS CLOUDY         22

AVERAGE RH (PERCENT)     75

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              1     MIXED PRECIP               1
HEAVY RAIN                1     RAIN                       4
LIGHT RAIN               16     FREEZING RAIN              0
LT FREEZING RAIN          2     HAIL                       0
HEAVY SNOW                1     SNOW                       5
LIGHT SNOW               16     SLEET                      2
FOG                      24     FOG W/VIS <= 1/4 MILE      2
HAZE                      2

-  INDICATES NEGATIVE NUMBERS.
R  INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T  INDICATES TRACE AMOUNT.

&&

...MILD JANUARY WITH FEW INTERRUPTIONS...

JANUARY 2017 WILL BE REMEMBERED FOR ITS COMPLACENCY AS ONLY BRIEF
PERIODS OF TRUE WINTER WEATHER OCCURRED. OVERALL TEMPERATURES WERE
WELL ABOVE NORMAL, AND SNOWFALL WAS LACKING. A PERSISTENT WARM AND
MOIST AIRMASS MID-MONTH BROUGHT SEVERAL DAYS OF FOG AND LOW CLOUDS.

THE AVERAGE TEMPERATURE OF 31.4F WAS OVER SIX AND A HALF DEGREES
ABOVE NORMAL, AND PLACED THIS JANUARY AS THE 17TH WARMEST JANUARY ON
RECORD. OF THE 31 DAYS IN THE MONTH, 23 FINISHED ABOVE NORMAL. THERE
WAS ONE RECORD TEMPERATURE TIED, THIS WHEN THE TEMPERATURE ONLY
DROPPED TO 38F ON THE 11TH, TYING THE FORMER RECORD SET BACK IN
1975. THERE WERE 12 DAYS THIS MONTH THAT REMAINED AT OR ABOVE
FREEZING; AND ONLY 2006 (14 DAYS) AND 1932 (17 DAYS) HAD MORE. IN
FACT, OF THESE 12 DAYS THERE WERE 7 DAYS IN A ROW THAT REMAINED AT
OR ABOVE FREEZING. ONLY YEARS, 1906, 1928, 2007 WITH 8 DAYS, AND
1995 WITH 10 DAYS HAD LONGER STRETCHES.

PRECIPITATION FOR THE MONTH FINISHED ABOUT A THIRD OF AN INCH ABOVE
NORMAL. MOST OF THIS PRECIPITATION FELL AS RAIN, AS SNOWFALL WAS
WELL BELOW NORMAL. JUST 11.8 INCHES OF SNOW FELL, WHICH IS WELL
BELOW THE NORMAL OF 28.2 INCHES. THIS RANKS AS TIED FOR 25TH LEAST
SNOWIEST JANUARY ON RECORD. ABOUT HALF THE MONTHLY SNOW FELL ON THE
24TH IN A WEAK SYNOPTIC EVENT. PRECIPITATION WAS EVENLY SPREAD
THROUGH THE MONTH AND THERE WERE NO MAJOR RAIN EVENTS AROUND THE
METRO ROCHESTER AREA, THOUGH HEAVY RAIN ACROSS THE SOUTHERN TIER AND
UPPER GENESEE VALLEY ON THE 12TH CAUSED SIGNIFICANT FLOODING.

JANUARY OPENED THE NEW YEAR QUIET WITH TEMPERATURES RISING INTO THE
40S THE FIRST 4 DAYS OF THE MONTH. A WARM FRONT LIFTED ACROSS THE
REGION ON THE 3RD, SPREADING RAIN ACROSS THE REGION...BUT WITH MINOR
FLOODING. A COLD FRONT SWEPT ACROSS THE REGION DURING THE EARLY
MORNING HOURS OF THE 4TH, SENDING THE REGION INTO ITS ONLY PROLONGED
COLD SPELL THIS MONTH, AND GENERATING LAKE EFFECT SNOW MAINLY TO THE
EAST OF THE LAKES. LAKE EFFECT SNOW FLEW EAST OF THE LAKES FROM THE
4TH THROUGH THE 8TH WITH UP TO 3 FEET FALLING EAST OF BOTH LAKE ERIE
(SW NYS) AND LAKE ONTARIO (TUG HILL) BUT ONLY A FEW INCHES ALONG THE
SOUTHERN LAKE ONTARIO SHORELINE THROUGH THE ROCHESTER AREA.  AFTER 5
DAYS WITH BELOW NORMAL AIR TEMPERATURES, A WARM FRONT LIFTED TOWARDS
THE REGION. INITIALLY A WINTRY MIX OF SNOW, THEN SLEET AND FREEZING
RAIN FELL ACROSS WESTERN NEW YORK ON THE 10TH AND 11TH. A WAVE OF
LOW PRESSURE PRODUCE WIDESPREAD RAIN ON THE 12TH, WITH AN INCH TO AN
INCH AND A HALF FALLING ACROSS THE SOUTHERN TIER AND TOWARDS THE
LOWER GENESEE VALLEY...PRODUCING FLOODING OF BOTH RIVERS, AND AREA-
WIDE. FROM THE 17TH TO THE 23RD AIR TEMPERATURES REMAINED ABOVE
FREEZING. THERE WAS A RAIN AND THUNDERSTORM EVENT ON THE 17TH THAT
PRODUCED A HALF TO ONE INCH OF RAINFALL ACROSS THE REGION, THOUGH
WITH MUCH OF THE SNOW MELTED FROM AN EARLIER RAIN EVENT, FLOODING
WAS MINIMAL. THE WARMER TEMPERATURES, AND AT TIMES NORTHEAST WINDS
PRODUCED A PERIOD OF LOW CLOUDS AND STRATUS. CLOUDS AND VISIBILITIES
TENDED TO BE LOWEST FROM THE EVENING, THROUGH THE OVERNIGHT AND INTO
THE MORNING HOURS OF THE 20TH THROUGH THE 23RD. THERE WAS A BREAK IN
THE CLOUDS ON THE 21ST AND THIS ALLOWED FOR TEMPERATURES TO SPIKE
TOWARDS 50F...THE THIRD 50 DEGREE READING THIS MONTH. TRANQUIL
CONDITIONS STARTED THE 4TH WEEK OF THE MONTH BUT A MARGINALLY COLD
AIRMASS BROUGHT UP TO HALF A FOOT OF GENERAL SNOW ACROSS THE GENESEE
VALLEY ON THE 24TH BEFORE A SECOND SIGNIFICANT LAKE EFFECT SNOW
EVENT, ONE THAT DUMPED UPWARDS TO A FOOT AND A HALF OF SNOW ACROSS
THE SOUTHERN TIER AND BOSTON HILLS, BUT AGAIN JUST A FEW INCHES
ALONG THE SOUTHERN LAKE ONTARIO SHORELINE AND THE METRO ROCHESTER
AREA. A CLIPPER ON THE 31ST DROPPED ANOTHER HALF INCH OF SNOW ACROSS
THE ROCHESTER REGION.

WINDS WERE LIGHTER THAN DECEMBER, FINISHING THE MONTH AT 10.3 MPH,
WHICH IS JUST BELOW NORMAL. THERE WERE TWO HIGH WIND EVENTS THIS
MONTH, THE FIRST ON THE 4TH WHEN WIND GUSTS TOPPED 50 MPH ACROSS THE
ROCHESTER METRO AREA, AND A SECOND ON THE MORNING HOURS OF THE
11TH...WHICH MEASURED A PEAK WIND SPEED OF 58 MPH AT THE ROCHESTER
AIRPORT.

IN ALL A MILD MONTH, LACKING THE DEEP SNOWPACK USUALLY FOUND DURING
JANUARY.

&&

THOMAS

$$


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