Climatological Report (Monthly)
Issued by NWS Buffalo, NY

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CXUS51 KBUF 041417
CLMBUF

CLIMATE REPORT
NATIONAL WEATHER SERVICE BUFFALO NY
739 AM EDT MON OCT 1 2018

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

...THE BUFFALO NY CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 2018...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1871 TO 2018

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE  DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH              98   09/03/1953
 LOW               32   09/30/1991
                        09/24/1963
                        09/28/1957
HIGHEST            90   09/05                         91  09/25
LOWEST             45   09/23                         42  09/30
AVG. MAXIMUM     75.2              71.1     4.1     75.3
AVG. MINIMUM     59.2              53.4     5.8     55.5
MEAN             67.2              62.2     5.0     65.4
DAYS MAX >= 90      1               0.1     0.9        2
DAYS MAX <= 32      0               0.0     0.0        0
DAYS MIN <= 32      0               0.0     0.0        0
DAYS MIN <= 0       0               0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         8.99   1977
 MINIMUM         0.31   1897
TOTALS           3.58              3.90   -0.32     3.17
DAYS >= .01        14                                  9
DAYS >= .10         4                                  6
DAYS >= .50         2                                  3
DAYS >= 1.00        2                                  1
GREATEST
 24 HR. TOTAL    1.40   09/10 TO 09/10

SNOWFALL (INCHES)
RECORDS
 TOTAL              T   1956
                        1950
TOTALS            0.0               0.0     0.0      0.0
SINCE 7/1         0.0               0.0     0.0
SNOWDEPTH AVG.      0                MM      MM        0
DAYS >= 1.0         0               0.0     0.0        0
GREATEST
 SNOW DEPTH         0   MM                             0  MM
 24 HR TOTAL      0.0   MM

DEGREE_DAYS
HEATING TOTAL      83               135     -52       93
 SINCE 7/1         83               162     -79      109
COOLING TOTAL     159                53     106      116
 SINCE 1/1        894               540     354      586
.................................................................

WIND (MPH)
AVERAGE WIND SPEED              8.4
HIGHEST WIND SPEED/DIRECTION    33/260
HIGHEST GUST SPEED/DIRECTION    46/280    DATE  09/21

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
NUMBER OF DAYS FAIR            3
NUMBER OF DAYS PC             16
NUMBER OF DAYS CLOUDY         11

AVERAGE RH (PERCENT)     77

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              3     MIXED PRECIP               0
HEAVY RAIN                4     RAIN                       4
LIGHT RAIN               15     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                      12     FOG W/VIS <= 1/4 MILE      0
HAZE                      3

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

&&

...WARM SEPTEMBER CLOSES OUT A VERY WARM SUMMER SEASON...

A 5TH STRAIGHT ABOVE NORMAL TEMPERATURE MONTH CLOSES OUT THE WARMEST
5-MONTH STRETCH IN RECORDED HISTORY AT BUFFALO. ALONE, SEPTEMBER WAS
THE 6TH WARMEST MONTH WHILE PRECIPITATION TOTALED NEAR NORMAL. ASIDE
FROM TWO WET DAYS WITH OVER AN INCH OF RAINFALL, MUCH OF THE RAIN
THIS MONTH WAS LIGHT AND COMING IN AT LESS THAN A TENTH OF AN INCH.

THE TEMPERATURE AVERAGED 67.2F THIS MONTH WHICH IS RANKED 6TH
WARMEST, WHICH LIES BETWEEN RECENT YEARS OF 5TH PLACE (2015/67.3F)
AND 7TH PLACE (2016/67.0). THERE WERE 21 DAYS THAT FINISHED ABOVE
NORMAL AND TWO RECORD HIGH TEMPERATURES ESTABLISHED. THE 86F ON THE
15TH TIED THE RECORD FROM 1903, AND THE 89F ON THE 21ST BROKE THE
RECORD OF 86F FROM 1934. THE NIGHTS AGAIN FINISHED WELL ABOVE NORMAL
AVERAGING 59.2F WHICH IS 5.5 DEGREES ABOVE NORMAL, AND WARMEST
AVERAGE MINIMUM TEMPERATURES FOR SEPTEMBER SINCE RECORDS MOVED TO
THE AIRPORT IN 1943. THE TEMPERATURE ON THE 23RD DIPPED TO 45F, THE
FIRST SUB 50F DEGREE READING SINCE MAY 13TH A NOW RECORD 132
STRAIGHT DAYS. THIS BROKE THE PREVIOUS STREAK OF 119 DAYS SET BACK
IN 1921.

PRECIPITATION FOR THE MONTH TOTALED 3.58 INCHES WHICH IS A THIRD OF
AN INCH BELOW NORMAL. THOUGH THERE WERE 14 DAYS WITH MEASURABLE
RAINFALL, ONLY 4 OF THESE DAYS TOTALED MORE THAN A TENTH OF AN INCH.
THERE WERE TWO DAYS THAT HAD OVER AN INCH OF RAINFALL, THE 10TH WITH
1.40 INCHES AND THE 25TH WITH 1.15 INCHES. THE LONGEST STRETCH
WITHOUT ANY TRACE OF RAIN THIS MONTH CAME FROM THE 12TH THROUGH THE
18TH.

LABOR DAY WEEKEND STARTED SEPTEMBER AND IT WAS A HOT AND HUMID
WEEKEND, WITH EACH OF THE FIRST 3 DAYS OF THE LONG WEEKEND REACHING
INTO THE 80S. THERE WERE A FEW SCATTERED SHOWERS AND THUNDERSTORMS
TO BRING SOME RELIEF FROM THE EARLY WARMTH. ON THE 3RD SEVERAL
THUNDERSTORMS WITH AN IMPRESSIVE AMOUNT OF LIGHTNING FORMED ALONG
THE SOUTHERN LAKE ONTARIO SHORELINE PRODUCING SOME TREE DAMAGE
ACROSS NIAGARA COUNTY BEFORE WEAKENING FARTHER INLAND. THE HOT
STRETCH PEAKED ON THE 5TH WHEN THE AFTERNOON TEMPERATURE REACHED
90F, THE 6TH SUCH DAY THIS YEAR FOR BUFFALO. A COLD FRONT CROSSED
THE REGION LATE ON THE 5TH, WITH SEVERAL THUNDERSTORMS BRINGING SOME
WIND DAMAGE ACROSS THE BUFFALO SOUTHTOWNS.

THE FIRST OF TWO WIDESPREAD SOAKING RAIN EVENTS THIS MONTH CAME ON
MONDAY THE 10TH. SUBTROPICAL MOISTURE LIFTED ACROSS WESTERN NEW
YORK, ALONG WITH THE REMNANT CIRCULATION OF GORDON. THIS BROUGHT ONE
TO TWO INCHES OF RAIN ACROSS WESTERN NEW YORK. IT WAS THEN QUIET,
BUT WARM MID MONTH WHICH INCLUDED A 7-DAY STRETCH FROM THE 12TH TO
THE 18TH THAT WAS PRECIPITATION FREE. THE NEXT WIDESPREAD RAIN EVENT
OCCURRED ON THE 25TH TO 26TH, WHEN FIRST A WARM FRONT AND THEN A
COLD FRONT CROSSED THE REGION. THIS SYSTEM BROUGHT AN ADDITIONAL ONE
TO TWO INCHES OF RAIN TO WESTERN NEW YORK. AHEAD OF THE COLD FRONT
SEVERAL THUNDERSTORMS BROUGHT DOWN NUMEROUS TREES ACROSS THE HILLS
OF SW NYS. THE MONTH CLOSED ON A COLD NOTE WITH HIGH TEMPERATURES
ONLY IN THE UPPER 50S ACROSS WESTERN NEW YORK.

LAKE ERIE PEAKED AT A RECORD TYING 76F FOR THE DATE ON THE 7TH. THE
LAKE THEN COOLED THROUGH THE MONTH, DOWN TO 67F BY MONTHS CLOSE.
WINDS WERE NEAR NORMAL FOR THE MONTH. THE STRONGEST WIND GUST WAS 46
MPH ON THE 21ST.

IN ALL A QUIET AND WARM MONTH, WITH WELL SPACED LARGER RAIN EVENTS.

&&

THOMAS

$$



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