Climatological Report (Monthly)
Issued by NWS Buffalo, NY

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000
CXUS51 KBUF 040136
CLMROC

CLIMATE REPORT
NATIONAL WEATHER SERVICE BUFFALO NY
1151 AM EDT SAT OCT 01 2022

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

...THE ROCHESTER NY CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 2022...

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1871 TO 2022

WEATHER         OBSERVED          NORMAL  DEPART   LAST YEAR`S
                VALUE   DATE(S)   VALUE   FROM     VALUE DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH             99   09/03/1953
 LOW              28   09/28/1947
HIGHEST           85   09/03                          85  09/14
LOWEST            37   09/30                          43  09/30
AVG. MAXIMUM    70.7               73.6    -2.9     74.1
AVG. MINIMUM    54.3               53.6     0.7     54.0
MEAN            62.5               63.6    -1.1     64.0
DAYS MAX >= 90     0                0.9    -0.9        0
DAYS MAX <= 32     0                0.0     0.0        0
DAYS MIN <= 32     0                0.1    -0.1        0
DAYS MIN <= 0      0                0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        6.30   1977
 MINIMUM        0.28   1960
TOTALS          2.81               3.18   -0.37     3.16
DAYS >= .01       14                                  10
DAYS >= .10        8                                   7
DAYS >= .50        1                                   1
DAYS >= 1.00       0                                   1
GREATEST
 24 HR. TOTAL   0.76   09/12 TO 09/13               1.73  09/22 TO 09/23

SNOWFALL (INCHES)
RECORDS
 TOTAL            MM   MM
TOTALS           0.0                0.0     0.0      0.0
SINCE 7/1        0.0                0.0     0.0       MM
SNOWDEPTH AVG.     0                                   0
DAYS >= 1.0        0                0.0     0.0        0
DAYS >= 0.1        0                                   0
GREATEST
 SNOW DEPTH        0                                   0  MM
 24 HR TOTAL     0.0                                  MM

DEGREE DAYS
HEATING TOTAL    118                114       4       63
 SINCE 7/1       119                132     -13       MM
COOLING TOTAL     51                 72     -21       41
 SINCE 1/1       702                668      34       MM
................................................................

WIND (MPH)
AVERAGE WIND SPEED              7.2
HIGHEST WIND SPEED/DIRECTION    35/240
HIGHEST GUST SPEED/DIRECTION    47/240    DATE  09/26

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.65
NUMBER OF DAYS FAIR            5
NUMBER OF DAYS PC             13
NUMBER OF DAYS CLOUDY         12

AVERAGE RH (PERCENT)     78

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              5     MIXED PRECIP               0
HEAVY RAIN                6     RAIN                       4
LIGHT RAIN               17     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                      17     FOG W/VIS <= 1/4 MILE      1
HAZE                      0

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

&&

...ANOTHER BELOW NORMAL RAINFALL MONTH FOR THE ROCHESTER AREA...

THE ROCHESTER CLIMATE LOCATION RECEIVED BELOW NORMAL PRECIPITATION
FOR THE MONTH OF SEPTEMBER, MARKING THE SIXTH MONTH OUT OF THE LAST
SEVEN WHERE BELOW NORMAL PRECIPITATION VALUES WERE OBSERVED. THIS
CONTINUES THE TREND ACROSS MOST OF WESTERN NY SINCE MARCH, AS MOST
CLIMATE LOCATIONS HAVE RECEIVED BELOW NORMAL PRECIPITATION AMOUNTS.
WITH THE SLIGHTLY ABOVE NORMAL RAINFALL IN AUGUST, MANY WESTERN NY
LAWNS RETURNED TO THEIR NORMAL GREEN COLOR THROUGHOUT SEPTEMBER.
DESPITE SEPTEMBER`S RAINFALL BEING CLASSIFIED AS BELOW NORMAL, IT
WASN`T NEARLY AS DRY L AS THE MONTHS EARLIER IN THE SUMMER, SUCH AS
JUNE AND JULY, WHERE THE TWO MONTHS COMBINED WERE AROUND THREE
INCHES (OR 45 PERCENT) BELOW NORMAL.

THE TEMPERATURE AVERAGED 62.5F THIS MONTH, WHICH WAS 1.1 DEGREES
BELOW NORMAL. MOST OF THE FIRST WEEK OF THE MONTH WAS COOL WITH
BELOW NORMAL TEMPERATURES. THIS WAS THEN FOLLOWED BY A TWO-WEEK
PERIOD WHERE TEMPERATURES WERE ABOVE NORMAL FOR TWELVE OUT OF THE
FIFTEEN DAYS. ALL OF THE LAST NINE DAYS OF THE MONTH WERE BELOW THE
NORMAL DAILY AVERAGE TEMPERATURE. WITHIN THIS MONTH, THERE WERE
SEVEN DAYS WITH HIGH TEMPERATURES OF 80F OR WARMER, AND NO DAYS OF
90F OR WARMER. THE WARMEST DAYTIME HIGH TEMPERATURE WAS 85F,
OCCURRING ON THE 3RD. THERE WERE SIX DAYS WHERE THE LOW TEMPERATURE
DROPPED INTO THE 40S. THE COOLEST MORNING TEMPERATURE OCCURRED ON
THE LAST DAY OF THE MONTH, WITH A LOW OF 37F. NORMAL DAILY AVERAGE
TEMPERATURES FOR THE MONTH OF SEPTEMBER RANGE FROM 68F ON THE FIRST
TO 58F BY THE 30TH. NO RECORD HIGH OR LOW TEMPERATURES WERE SET FOR
THE MONTH OF SEPTEMBER AT THE BUFFALO CLIMATE LOCATION.

PRECIPITATION AMOUNTS TOTALED 2.81 INCHES FOR THE MONTH, WHICH WAS
0.37 INCHES BELOW THE NORMAL VALUE OF 3.18 INCHES. AS MENTIONED
PREVIOUSLY THIS ADDS TO THE DRYING TREND OCCURRING SINCE EARLY
SPRING, AND THIS IS THE SIXTH MONTH OUT OF THE LAST SEVEN WITH BELOW
NORMAL PRECIPITATION VALUES. A SOAKING RAINFALL OCCURRED DURING THE
SECOND HALF OF LABOR DAY WEEKEND, WHEN 0.41 INCHES OF RAIN FELL.
OVER HALF OF THE RAIN FELL FROM TWO DIFFERENT EVENTS, THE FIRST
BEING FROM THE 12TH TO THE 13TH, WHEN 0.77 INCHES OF RAIN WAS
MEASURED, AND THE SECOND HAPPENING THE LAST WEEK OF THE MONTH, WHEN
A LAKE EFFECT PATTERN, SETUP OVER THE AREA, RESULTING IN 0.78 INCHES
OF RAINFALL OVER A FIVE-DAY PERIOD.

THE MONTH OF SEPTEMBER STARTED OUT DRY THROUGH THE FIRST HALF OF
LABOR DAY WEEKEND, BUT A SLOW-MOVING COLD FRONT BECAME STATIONARY
OVER THE REGION DURING THE SECOND HALF OF THE WEEKEND. AREAS SOUTH
OF LAKE ONTARIO RECEIVED ANYWHERE FROM A QUARTER TO ONE INCH OF
RAINFALL AS AN AREA OF LOW PRESSURE CROSSED THE REGION ALONG THE
STALLED FRONT. UPPER LEVEL LOW PRESSURE CROSSED THE REGION ON
SEPTEMBER 12TH-13TH, CAUSING SHOWERS AND SOME THUNDERSTORMS AND
RESULTING IN 0.77 INCHES OF RAINFALL. THE MORNINGS OF SEPTEMBER 15TH
AND 16TH, WERE AMONG THE COOLEST MORNINGS SINCE EARLY JUNE FOR SOME
AREAS OF WESTERN NY, WITH THE ROCHESTER AIRPORT DROPPING TO 45
DEGREES ON THE 16TH. ON SEPTEMBER 19TH, AN AREA OF LOW PRESSURE AND
TRAILING COLD FRONT TRACKED ACROSS THE REGION, CAUSING SHOWERS AND
THUNDERSTORMS TO SPREAD ACROSS THE AREA; IN TOTAL, RAINFALL AMOUNTS
OF UP TO ONE TO TWO INCHES FELL ACROSS THE FORECAST AREA; IN TOTAL,
RAINFALL AMOUNTS OF UP TO ONE TO TWO INCHES FELL ACROSS THE FORECAST
AREA, WITH 0.63 INCHES FALLING AT THE ROCHESTER AIRPORT. A BATCH OF
STRONG TO SEVERE THUNDERSTORMS MOVED ACROSS WESTERN NY DURING THE
LATE EVENING OF SEPTEMBER 21ST AND THE EARLY MORNING OF SEPTEMBER
22ND, RESULTING IN HEAVY RAIN SOUTH OF THE ROCHESTER AIRPORT, WITH
THE AIRPORT ONLY RECEIVING A HUNDREDTH OF AN INCH OF RAIN. A LARGE
VERTICALLY STACKED LOW PRESSURE SYSTEM TRACKED ACROSS THE GREAT
LAKES, BRIEFLY STALLING FOR AROUND A DAY OVER SOUTHWESTERN ONTARIO
EARLY IN THE LAST WEEK OF SEPTEMBER, CAUSING A HEAVY LAKE EFFECT
RAIN EVENT EAST AND SOUTHEAST OF BOTH LAKE ERIE AND ONTARIO. THIS
EVENT, DRIVEN BY A FAVORABLE SET UP FOR LAKE EFFECT, CAUSED 0.78
INCHES OF RAIN TO FALL AT THE ROCHESTER AIRPORT FROM SUNDAY THE 25TH
THROUGH THURSDAY THE 29TH. ON THE MORNING OF THE 30TH, A LARGE
AMOUNT OF THE AREA DROPPED DOWN INTO THE 30S, WITH MANY COUNTIES
ACROSS WESTERN NY HAVING THEIR FIRST FROST ADVISORY OF THE COOL
SEASON.

THE WATER TEMPERATURE ON THE SOUTH SHORE OF LAKE ONTARIO STARTED OUT
THE MONTH AT 75F, WHICH WOULD BE THE WARMEST TEMPERATURE FOR THE
MONTH ON THE LAKE. AS USUAL, THE WATER TEMPERATURE FLUCTUATED
GREATLY THROUGHOUT THE MONTH OF SEPTEMBER ALONG THE SOUTH SHORE OF
THE LAKE, PRIMARILY DUE TO UPWELLING. THE LOWEST TEMPERATURE FOR THE
MONTH ON LAKE ONTARIO`S SOUTH SHORE WAS 46F, WHICH OCCURRED ON THE
7TH OF THE MONTH. THE MONTH ENDED WITH A LAKE TEMPERATURE OF 66F ON
THE 30TH. WINDS AT THE ROCHESTER AIRPORT WERE 0.2 MPH BELOW THE
NORMAL AVERAGE DAILY WIND SPEED OF 7.4 MPH.

OVERALL, A BELOW AVERAGE MONTH OF SEPTEMBER FOR BOTH TEMPERATURES
AND PRECIPITATION FOR THE ROCHESTER AREA.

&&

SJW/EAJ

$$


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