000
CXUS51 KBUF 031430
CLMROC

CLIMATE REPORT
NATIONAL WEATHER SERVICE BUFFALO NY
1030 AM EDT THU AUG 03 2023

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

...THE ROCHESTER NY CLIMATE SUMMARY FOR THE MONTH OF JULY 2023...

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1871 TO 2023

WEATHER         OBSERVED          NORMAL  DEPART   LAST YEAR`S
                VALUE   DATE(S)   VALUE   FROM     VALUE DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH            102   07/10/1936
                       07/09/1936
 LOW              42   07/09/1963
HIGHEST           91   07/06                          92  07/20
                                                          07/23
LOWEST            56   07/30                          49  07/10
                       07/31
AVG. MAXIMUM    81.2               82.5    -1.3     82.8
AVG. MINIMUM    62.6               62.2     0.4     61.4
MEAN            71.9               72.3    -0.4     72.1
DAYS MAX >= 90     1                3.5    -2.5        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        9.70   1947
 MINIMUM        0.43   1933
TOTALS          6.81               3.56    3.25     1.78
DAYS >= .01       16                                   7
DAYS >= .10       13                                   5
DAYS >= .50        6                                   1
DAYS >= 1.00       0                                   0
GREATEST
 24 HR. TOTAL   1.30   07/02 TO 07/03               0.94  07/18 TO 07/18

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      MM    MM                           0.0

DEGREE DAYS
HEATING TOTAL      0                  6      -6        1
 SINCE 7/1         0                  0       0       MM
COOLING TOTAL    222                234     -12      229
 SINCE 1/1       329                406     -77       MM
................................................................

WIND (MPH)
AVERAGE WIND SPEED              6.3
HIGHEST WIND SPEED/DIRECTION    33/270
HIGHEST GUST SPEED/DIRECTION    46/230    DATE  07/13

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.62
NUMBER OF DAYS FAIR            3
NUMBER OF DAYS PC             20
NUMBER OF DAYS CLOUDY          8

AVERAGE RH (PERCENT)     75

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM             14     MIXED PRECIP               0
HEAVY RAIN               10     RAIN                      13
LIGHT RAIN               17     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                      18     FOG W/VIS <= 1/4 MILE      2
HAZE                      6

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

$$

...WET JULY, WITH MANY ROUNDS OF THUNDERSTORMS...


SUMMER’S CONVECTION WAS UPON WESTERN NEW YORK THIS JULY, WITH MANY
ROUNDS OF THUNDERSTORMS, OF WHICH SOME PRODUCED LOCALLY HEAVY
DOWNPOURS. A PERSISTENT UPPER LEVEL LOW SOUTH OF HUDSON BAY THIS
MONTH KEPT UNSETTLED DAYS THROUGHOUT THE GREAT LAKES REGION, WHILE
ALSO SUPPRESSING MUCH OF THE BLAZING SUMMER HEAT TO THE SOUTH. MOST
DAYS WERE NEAR OR JUST ABOVE THEIR DAILY TEMPERATURE NORMALS.
PRECIPITATION WAS MUCH ABOVE NORMAL WITH THE MONTH FINISHING IN THE
TOP 10 WETTEST ON RECORD.

THE TEMPERATURE FOR JULY AVERAGED 71.9F WHICH IS ABOUT A HALF-DEGREE
BELOW NORMAL. WHILE MUCH OF THE MONTH HAD HIGHS IN THE 70S OR 80S,
THERE WERE TWO HOT AND HUMID DAYS. THESE DAYS, THE 6TH AT 91F AND
THE 28TH AT 89F, WERE ALSO MET WITH HIGH HUMIDITY THAT BROUGHT
APPARENT TEMPERATURES WELL INTO THE 90S. THIS 91F READING ON THE 6TH
WAS THE FIRST SUCH 90 DEGREE TEMPERATURE OF THE SUMMER, WELL BELOW
THE TYPICAL TOTAL OF 6 DAYS THROUGH THE END OF JULY.

PRECIPITATION TOTALED 6.81 INCHES WHICH IS ALMOST DOUBLE THE NORMAL
FOR JULY. THIS TOTAL ALSO RANKS 6TH WETTEST ON RECORD FOR JULY. FOR
SUCH A WET SUMMER MONTH THE GREATEST DAILY PRECIPITATION TOTAL WAS
JUST 0.83” ON THE 24TH. THE 6 DAYS WITH AT LEAST A HALF INCH OF
RAINFALL TRAILS JUST JULY OF 1945 FOR THE GREATEST NUMBER OF DAYS IN
JULY WITH A HALF INCH OF RAINFALL.

THE MONTH TENDED TO BE CLOUDIER THAN NORMAL, WITH COMPLETE SUNNY
DAYS FEW IN NUMBER. AN ALL DAY RAIN EVENT, WITH VERY LITTLE THUNDER
OCCURRED ON THE 2ND OF THE MONTH. OTHERWISE MUCH OF THE
PRECIPITATION THIS MONTH WAS WITHIN THUNDERSTORMS. IN FACT THE 14
DAYS WITH THUNDER ARE MORE THAN DOUBLE THE TYPICAL AMOUNT (6 DAYS)
DURING THE MONTH OF JULY. NOTABLE DATES FOR STORMS INCLUDE THE 9TH
WITH FLOODING RAIN IN CANANDAIGUA, 18TH WITH A SEVERE THUNDERSTORM
FOLLOWING THE LAKE ONTARIO SHORELINE, 20TH WITH WIDESPREAD SEVERE
STORMS ACROSS THE GENESEE VALLEY, AND 24TH WITH SEVERAL TREES DOWN
EAST OF ROCHESTER. THOUGH THE RAINS KEPT THE AREA VEGETATION LUSH
THROUGHOUT THE MONTH, DEEP SOIL MOISTURE CONTENT CONTINUED TO BE
ABNORMALLY DRY WEST OF ROCHESTER. WILDFIRE SMOKE WAS LESS IMPACTFUL
THIS MONTH THAN RECENT MONTHS, WITH THE 17TH-18TH AND AGAIN THE 26TH
REPORTING SMOKE WITH REDUCED SURFACE VISIBILITY AND HIGHER FINE
PARTICULATE MATTER.

THE WATER TEMPERATURE ON LAKE ONTARIO PEAKED AT 75F THIS MONTH ON
THE 9TH, 10TH AND 29TH. WINDS AVERAGED BELOW NORMAL BY JUST OVER A
MILE PER HOUR. THE STRONGEST WIND GUST OF 46 MPH OCCURRED ON THE
13TH.

IN ALL, A CLOUDY, WET JULY WITH TYPICAL SUMMER HEAT.

&&

THOMAS

$$