Climatological Report (Monthly)
Issued by NWS Buffalo, NY

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CXUS51 KBUF 032344
CLMROC

CLIMATE REPORT
NATIONAL WEATHER SERVICE BUFFALO NY
503 PM EST SUN NOV 1 2020

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

...THE ROCHESTER NY CLIMATE SUMMARY FOR THE MONTH OF OCTOBER 2020...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1871 TO 2020

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE  DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH              91   10/05/1951
 LOW               19   10/25/1879
HIGHEST            80   10/23                         88  10/01
LOWEST             28   10/31                         33  10/19
AVG. MAXIMUM     59.1              59.6    -0.5     62.7
AVG. MINIMUM     42.7              41.5     1.2     44.4
MEAN             50.9              50.6     0.3     53.6
DAYS MAX >= 90      0               0.0     0.0        0
DAYS MAX <= 32      0               0.0     0.0        0
DAYS MIN <= 32      2               3.3    -1.3        0
DAYS MIN <= 0       0               0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         8.67   1873
 MINIMUM         0.08   1924
TOTALS           2.76              2.72    0.04     4.84
DAYS >= .01        16                                 15
DAYS >= .10         9                                 10
DAYS >= .50         1                                  6
DAYS >= 1.00        0                                  1
GREATEST
 24 HR. TOTAL    0.69   10/21 TO 10/21

SNOWFALL (INCHES)
RECORDS
 TOTAL            5.0   1906
TOTALS              T               0.1    -0.1      0.0
SINCE 7/1           T               0.1    -0.1      0.0
SNOWDEPTH AVG.      0               0.0     0.0        0
DAYS >= 1.0         0               0.0     0.0        0
GREATEST
 SNOW DEPTH         0                                  0
 24 HR TOTAL        T   10/30 TO 10/30

DEGREE_DAYS
HEATING TOTAL     432               452     -20      359
 SINCE 7/1        574               633     -59      423
COOLING TOTAL       2                 5      -3       13
 SINCE 1/1        797               539     258      621
.................................................................

WIND (MPH)
AVERAGE WIND SPEED              8.2
HIGHEST WIND SPEED/DIRECTION    35/290
HIGHEST GUST SPEED/DIRECTION    46/310    DATE  10/07

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.70
NUMBER OF DAYS FAIR            3
NUMBER OF DAYS PC             10
NUMBER OF DAYS CLOUDY         18

AVERAGE RH (PERCENT)     75

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              2     MIXED PRECIP               0
HEAVY RAIN                1     RAIN                       6
LIGHT RAIN               21     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       1
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                1     SLEET                      0
FOG                      16     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.

&&

...SOMEWHAT DAMP MONTH...

SHORTER, GRAY DAYS BECAME COMMON THIS MONTH OF OCTOBER, WITH
TEMPERATURES AND PRECIPITATION AVERAGING NEAR NORMAL. THERE WAS AN
ABOVE NORMAL AMOUNT OF DAYS WITH LIGHT RAINFALL THOUGH, INCLUDING
PRECIPITATION ON AN OCTOBER RECORD 9 STRAIGHT DAYS TOWARDS THE END
OF THE MONTH. IT WAS NOT UNTIL THE FINAL DAY OF THE MONTH THAT A
HARD FREEZE AND WIDESPREAD FROST OCCURRED, ENDING WHAT WAS LEFT OF
THE GROWING SEASON.

THE TEMPERATURE THIS MONTH AVERAGED A FEW TENTHS OF A DEGREE ABOVE
THE NORMAL OF 50.6F. THERE WERE 13 DAYS THAT FINISHED ABOVE NORMAL,
WHILE 15 DAYS FINISHED BELOW THEIR DAILY NORMAL. THERE WAS ONE
RECORD HIGH TEMPERATURE ESTABLISHED, THIS ON THE 23RD OF THE MONTH
WHEN THE TEMPERATURE HIT 80F BREAKING THE FORMER RECORD OF 79F SET
BACK IN 1975. THIS 80F TEMPERATURE WAS ALSO THE TENTH LATEST 80F
DEGREE TEMPERATURE ON RECORD.

PRECIPITATION TOTALED 2.76 INCHES FOR THE MONTH WHICH IS A FEW TICKS
ABOVE NORMAL. PRECIPITATION WAS SPREAD THROUGHOUT THE MONTH, WITH NO
EXTENDED DRY STRETCHES. JUST TWICE WERE THERE BACK TO BACK DAYS THAT
WERE FREE OF AT LEAST A TRACE OF PRECIPITATION. FROM THE 19TH TO THE
27TH MEASURABLE RAINFALL FELL ON EACH DATE...FOR A TOTAL OF 9
CONSECUTIVE DAYS AND SETTING THE OCTOBER MONTHLY RECORD FOR GREATEST
NUMBER OF DAYS IN A ROW WITH PRECIPITATION.

OCTOBER STARTED COOL, WITH LAKE EFFECT RAIN SHOWERS AROUND AS THE
REGION FELL UNDER THE INFLUENCES OF AN UPPER LEVEL TROUGH. A DEEP
STORM SYSTEM CROSSED EASTERN CANADA ON WEDNESDAY THE 7TH, AND
DROPPED A COLD FRONT ACROSS OUR REGION. CONVECTION INCREASED THROUGH
THE DAY ALONG THE FRONT, WITH STORMS EXHIBITING SEVERE THRESHOLDS
JUST TO THE EAST OF THE GENESEE VALLEY. THE SECOND WEEK OF OCTOBER
PROVED TO BE MILD, WITH JUST A FEW DAYS WITH RAINFALL. SUNNY BREAKS
WITHIN THIS SECOND WEEK ALLOWED FOR DAZZLING FALL COLORS AS AUTUMN
FOLIAGE PEAKED DURING THE SECOND AND THIRD WEEK OF OCTOBER.
TEMPERATURES SOARED TOWARDS 80F ON THE 23RD, PRODUCING A DAILY
RECORD MAXIMUM TEMPERATURE FOR ROCHESTER. A SHARP COLD FRONT CROSSED
THE REGION LATER ON THE 23RD, WITH SUDDEN INCREASE IN WINDS AS
THUNDERSTORMS ROLLED ACROSS THE REGION. LITTLE DAMAGE WAS REPORTED.
THEREAFTER COOLER AIR POURED OVER THE GREAT LAKES REGION WITH
SCATTERED SHOWERS THROUGHOUT THE REMAINDER OF THE MONTH. AS THE
AIRMASS COOLED, THE FIRST SNOW FLAKES OF THE WINTER SEASON FORMED,
WITH JUST A FEW FLURRIES AROUND THROUGHOUT THE DAY ON THE 30TH.

WINDS WERE A BIT BELOW NORMAL FOR THE MONTH, AND THE STRONGEST GUST
WAS 46 MPH...OCCURRING ON THE 7TH OF THE MONTH.

IN ALL A DAMP MONTH, BUT NO HEAVY PRECIPITATION EVENTS.

&&

THOMAS

$$


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