Climatological Report (Monthly)
Issued by NWS Buffalo, NY

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CXUS51 KBUF 031559
CLMROC

CLIMATE REPORT
NATIONAL WEATHER SERVICE BUFFALO NY
1027 AM EST THU DEC 1 2016

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

...THE ROCHESTER NY CLIMATE SUMMARY FOR THE MONTH OF NOVEMBER 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              80   11/02/1933
 LOW                1   11/30/1875
HIGHEST            73   11/18                         78  11/04
LOWEST             27   11/12                         24  11/23
AVG. MAXIMUM     54.0              48.0     6.0     55.8
AVG. MINIMUM     36.5              33.0     3.5     37.3
MEAN             45.2              40.5     4.7     46.6
DAYS MAX >= 90      0               0.0     0.0        0
DAYS MAX <= 32      0               1.4    -1.4        0
DAYS MIN <= 32      9              14.8    -5.8       11
DAYS MIN <= 0       0               0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         7.72   1927
 MINIMUM         0.33   1904
TOTALS           2.60              2.94   -0.34     0.97
DAYS >= .01        16                                 14
DAYS >= .10         7                                  2
DAYS >= .50         2                                  0
DAYS >= 1.00        0                                  0
GREATEST
 24 HR. TOTAL    0.91   11/02 TO 11/03           11/10 TO 11/11
                                                          11/22 TO 11/22
                                                          11/22 TO 11/22

SNOWFALL (INCHES)
RECORDS
 TOTAL           24.9   1996
TOTALS           15.0               7.3     7.7      1.2
SINCE 7/1        15.9               7.4     8.5      1.2
SNOWDEPTH AVG.      1                MM      MM        0
DAYS >= 1.0         2               2.3    -0.3        0
GREATEST
 SNOW DEPTH        12   11/21                          1  11/23
 24 HR TOTAL     11.2   MM                       11/22 TO 11/22
                                                          11/22 TO 11/22
                                                          11/22 TO 11/22

DEGREE_DAYS
HEATING TOTAL     585               735    -150      545
 SINCE 7/1        978              1368    -390     1040
COOLING TOTAL       0                 0       0        0
 SINCE 1/1        978               539     439      698
...................................................

WIND (MPH)
AVERAGE WIND SPEED              9.0
HIGHEST WIND SPEED/DIRECTION    32/310
HIGHEST GUST SPEED/DIRECTION    46/280    DATE  11/21

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.70
NUMBER OF DAYS FAIR            4
NUMBER OF DAYS PC              9
NUMBER OF DAYS CLOUDY         17

AVERAGE RH (PERCENT)     72

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                4     RAIN                       5
LIGHT RAIN               14     FREEZING RAIN              0
LT FREEZING RAIN          1     HAIL                       0
HEAVY SNOW                1     SNOW                       3
LIGHT SNOW                5     SLEET                      3
FOG                      15     FOG W/VIS <= 1/4 MILE      1
HAZE                      1

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

&&

...MILD NOVEMBER, WITH FIRST SIGNIFICANT LAKE EFFECT SNOW...

NOVEMBER WILL GO DOWN AS A PERSISTENTLY MILD MONTH, EXCEPT FOR ONE
BRIEF COLD SPELL THAT GAVE THE ROCHESTER REGION ITS FIRST
SIGNIFICANT SNOWFALL OF THE SEASON. PRECIPITATION FOR THE MONTH FELL
JUST SHORT OF NORMAL FOR THE MONTH.

THE AVERAGE TEMPERATURE FOR NOVEMBER WAS 45.2F DEGREES, PLACING THIS
NOVEMBER AS 10TH WARMEST ON RECORD. TEMPERATURE RECORDS FOR
ROCHESTER DATE BACK TO 1871. THERE WERE 23 DAYS THIS MONTH THAT
FINISHED ABOVE NORMAL, AND THERE WAS ONE NEW TEMPERATURE RECORD. THE
73F DEGREES ON THE 18TH BROKE THE FORMER RECORD OF 71F SET BACK IN
1958. THE MILD AUTUMN ALSO BROUGHT A LATER TREE FOLIAGE CHANGE THAN
NORMAL TO THE REGION. IN TOTAL THERE WERE JUST SIX DAYS THAT REACHED
BELOW FREEZING THIS MONTH, WHICH IS TIED FOR 6TH FEWEST NUMBER OF
DAYS FOR NOVEMBER. THERE WERE 10 DAYS THAT TOPPED THE 60F MARK,
WHICH IS 5 DAYS MORE THAN NORMAL.

ROCHESTER, LIKE MUCH OF THE NORTHEAST U.S. HAD BELOW NORMAL
PRECIPITATION THIS MONTH, WITH 2.60 INCHES OF PRECIPITATION
MEASURED. THIS IS A THIRD OF AN INCH BELOW THE NORMAL OF 2.94
INCHES. SEVERAL EVENTS BROUGHT CALENDAR DAY HALF TO ONE INCH
PRECIPITATION TOTALS, BUT THERE WERE NO EXTREME OR RECORD BREAKING
RAINFALL EVENTS. THE 16 DAYS OF MEASURABLE PRECIPITATION WAS
ACTUALLY ONE DAY MORE THAN NORMAL. SNOWFALL FOR THE MONTH WAS ABOVE
NORMAL WITH 15.0 INCHES MEASURED FROM THE 20TH TO 23RD. THE BULK OF
THIS SNOW FELL DURING A GEORGIAN BAY TO LAKE ONTARIO LAKE EFFECT
SNOW EVENT THAT DROPPED UP TO A FOOT AND A HALF OF FRESH SNOW ACROSS
THE GENESEE VALLEY AND NORTHERN FINGER LAKES REGION.

THERE WERE SEVERAL NOTABLE WEATHER EVENTS THIS MONTH. THE FIRST WAS
A LONG DURATION RAIN EVENT, THIS ON THE 2ND AND 3RD OF THE MONTH
WHEN WAVES OF RAIN ALONG A WEAK, AND SLOW MOVING COLD FRONTAL
BOUNDARY PASSED ACROSS THE REGION. THIS BROUGHT 2-DAY RAINFALL
TOTALS OF OVER AN INCH TO MUCH OF WESTERN NEW YORK. THE SECOND EVENT
WAS THE FIRST SIGNIFICANT LAKE EFFECT SNOW EVENT FOR THE LOWER GREAT
LAKES. A DEEP AREA OF LOW PRESSURE SLOWLY TRAVELED ACROSS SOUTHERN
QUEBEC OVER THE WEEKEND OF THE 19TH TO 20TH. THIS SYSTEM TRANSPORTED
ATLANTIC MOISTURE OVER THE EASTERN GREAT LAKES THAT FED ABUNDANT
MOISTURE INTO BANDS OF LAKE EFFECT SNOW THAT FELL SOUTHEAST OF THE
LAKES ON A COLD NORTHWEST FLOW. GREATEST SNOW TOTALS (NEARLY A FOOT)
FELL TO THE SOUTHEAST OF LAKE ERIE, AND ACROSS THE GENESEE VALLEY
AND NORTHERN FINGER LAKES REGION WHERE A FOOT TO A FOOT AND A HALF
OF SNOW FELL. THE THIRD EVENT WAS A STRONG COLD FRONT THAT PASSED
ACROSS WESTERN NEW YORK AS THE MONTH OF NOVEMBER CLOSED. THIS FRONT
BROUGHT A QUARTER OF AN INCH OF RAINFALL TO METRO ROCHESTER BY
MONTH`S CLOSE WITH A FEW SCATTERED THUNDERSTORMS ACROSS WESTERN NEW
YORK. OUTSIDE OF THESE THREE EVENTS, THERE WERE A FEW STORM SYSTEMS
THAT BROUGHT MINOR RAINFALL AMOUNTS.

IN ALL A MILD MONTH FOR WESTERN NEW YORK, INTERRUPTED BRIEFLY BY THE
SEASON`S FIRST NOTABLE LAKE EFFECT SNOW EVENT.

AUTUMN STATS...SEPTEMBER, OCTOBER, NOVEMBER. DEPARTURE FROM NORMAL
IN PARENTHESIS.


TEMPERATURE...      55.4F  (+4.4)  3RD WARMEST

PRECIPITATION...    11.16" (+2.12)  19TH WETTEST

SNOWFALL...          15.9"

&&

THOMAS

$$



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