Climatological Report (Monthly)
Issued by NWS Buffalo, NY

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000
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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