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000
CXUS51 KBUF 020947
CLMROC

CLIMATE REPORT
NATIONAL WEATHER SERVICE BUFFALO NY
754 AM EDT MON OCT 1 2012

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

...THE ROCHESTER NY CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 2012...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1871 TO 2012

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            86   09/03                         89  09/03
LOWEST             39   09/24                         41  09/18
AVG. MAXIMUM     72.4              71.6     0.8     72.7
AVG. MINIMUM     51.5              52.0    -0.5     55.9
MEAN             62.0              61.8     0.2     64.3
DAYS MAX >= 90      0               0.3    -0.3        0
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         6.30   1977
 MINIMUM         0.28   1960
TOTALS           4.45              3.38    1.07     3.77
DAYS >= .01        11                                 16
DAYS >= .10         7                                  7
DAYS >= .50         2                                  2
DAYS >= 1.00        1                                  1
GREATEST
 24 HR. TOTAL    2.64   09/04 TO 09/05           09/28 TO 09/28
                                                          09/30 TO 09/30
                                                          09/30 TO 09/30

SNOWFALL (INCHES)
RECORDS
 TOTAL             MM   MM
TOTALS            0.0               0.0     0.0      0.0
SINCE 7/1         0.0               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   09/30 TO 09/30           09/30 TO 09/30
                                                          09/30 TO 09/30
                                                          09/30 TO 09/30

DEGREE_DAYS
HEATING TOTAL     145               147      -2       86
 SINCE 7/1        152               181     -29       95
COOLING TOTAL      62                50      12       76
 SINCE 1/1        797               534     263      694
.................................................

WIND (MPH)
AVERAGE WIND SPEED              6.4
HIGHEST WIND SPEED/DIRECTION    26/320
HIGHEST GUST SPEED/DIRECTION    38/330    DATE  09/14

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
NUMBER OF DAYS FAIR            8
NUMBER OF DAYS PC             14
NUMBER OF DAYS CLOUDY          8

AVERAGE RH (PERCENT)     73

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                5     RAIN                       8
LIGHT RAIN               11     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                      11     FOG W/VIS <= 1/4 MILE      2
HAZE                      3

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

&&

...SUMMER HEAT GIVES WAY TO COOLER TEMPERATURES AND BENEFICIAL
RAINFALL...

SEPTEMBER TEMPERATURES ENDED UP BEING 0.2 DEGREES ABOVE AVERAGE...
BUT THE MONTH WAS DIVIDED INTO TWO DISTINCT PERIODS. THE HEAT THAT
WAS SO COMMON THIS SUMMER LASTED INTO THE FIRST WEEK OF SEPTEMBER
WITH ALL OF THE FIRST 7 DAYS WELL ABOVE AVERAGE. NO RECORD HIGH
TEMPERATURES WERE SET DURING THIS STRETCH...BUT MOST DAYS WERE 5 TO
10 DEGREES ABOVE AVERAGE. THE PATTERN FINALLY BROKE DURING THE
SECOND WEEK OF THE MONTH AS A TROUGH BECOME ESTABLISHED ACROSS MUCH
OF THE NORTH CENTRAL AND NORTHEAST UNITED STATES. DURING THE LAST 23
DAYS OF THE MONTH 15 WERE BELOW AVERAGE...QUITE A CHANGE FROM THE
PERSISTENT WARMTH OF SPRING AND SUMMER.

THERE WAS 4.45 INCHES OF PRECIPITATION FOR THE MONTH...WHICH WAS
OVER AN INCH ABOVE AVERAGE. THE ABOVE AVERAGE RAINFALL WAS WELCOME
FOLLOWING A DROUGHT THAT LASTED MUCH OF THE SPRING AND SUMMER. IN
FACT...THIS WAS THE FIRST MONTH WITH ABOVE AVERAGE PRECIPITATION
SINCE JUNE. THE RAIN HELPED TO ALLEVIATE DRY SOIL CONDITIONS...BUT
MORE PRECIPITATION WILL BE NEEDED TO ALLOW GROUND WATER TO FULLY
RECOVER. THE ABOVE NORMAL PRECIPITATION WAS A LITTLE DECEIVING...
SINCE OVER HALF OF THIS OCCURRED ON JUST ONE DAY WITH A RECORD
DAILY RAINFALL OF 2.64 INCHES ON THE 4TH.

WITH MOST OF THE RAIN FALLING IN SEVERAL SIGNIFICANT EVENTS...THERE
WERE STILL PLENTY OF DRY STRETCHES FOR OUTDOOR WORK AND ACTIVITIES.
SUNSHINE WAS ALSO WELL ABOVE AVERAGE FOR THE MONTH.

&&

HITCHCOCK

$$