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000
CXUS51 KBUF 040056
CLMROC

CLIMATE REPORT
NATIONAL WEATHER SERVICE BUFFALO NY
1255 PM EDT SUN JUN 3 2012

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

...THE ROCHESTER NY CLIMATE SUMMARY FOR THE MONTH OF MAY 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              94   05/30/1987
                        05/14/1974
 LOW               26   05/02/1979
                        05/07/1970
HIGHEST            92   05/28                         91  05/31
LOWEST             38   05/17                         39  05/04
                        05/06
AVG. MAXIMUM     74.1              67.6     6.5     67.9
AVG. MINIMUM     52.0              46.3     5.7     49.7
MEAN             63.0              57.0     6.0     58.8
DAYS MAX >= 90      1               0.2     0.8        1
DAYS MAX <= 32      0               0.0     0.0        0
DAYS MIN <= 32      0               0.6    -0.6        0
DAYS MIN <= 0       0               0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         6.87   1894
 MINIMUM         0.24   2007
TOTALS           1.38              2.87   -1.49     4.80
DAYS >= .01        10                                 16
DAYS >= .10         5                                 10
DAYS >= .50         0                                  4
DAYS >= 1.00        0                                  1
GREATEST
 24 HR. TOTAL    0.72   05/07 TO 05/08           05/15 TO 05/16
                                                          05/31 TO 05/31
                                                          05/31 TO 05/31

SNOWFALL (INCHES)
RECORDS
 TOTAL           10.9   1989
TOTALS            0.0               0.4    -0.4      0.0
SINCE 7/1        59.9              99.5   -39.6    127.0
SNOWDEPTH AVG.      0                MM      MM        0
DAYS >= 1.0         0               0.1    -0.1        0
GREATEST
 SNOW DEPTH         0   MM                             0  MM
 24 HR TOTAL      0.0   05/31 TO 05/31           05/31 TO 05/31
                                                          05/31 TO 05/31
                                                          05/31 TO 05/31

DEGREE_DAYS
HEATING TOTAL     127               275    -148      232
 SINCE 7/1       5260              6578   -1318     6744
COOLING TOTAL      75                26      49       45
 SINCE 1/1         88                30      58       48
..................................................

WIND (MPH)
AVERAGE WIND SPEED              6.9
HIGHEST WIND SPEED/DIRECTION    30/240
HIGHEST GUST SPEED/DIRECTION    43/270    DATE  05/25

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
NUMBER OF DAYS FAIR            5
NUMBER OF DAYS PC             14
NUMBER OF DAYS CLOUDY         12

AVERAGE RH (PERCENT)     67

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              5     MIXED PRECIP               0
HEAVY RAIN                2     RAIN                       4
LIGHT RAIN               10     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                      14     FOG W/VIS <= 1/4 MILE      1
HAZE                      6

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

&&

...VERY WARM AND DRY CONDITIONS RETURN IN MAY...

AFTER EXPERIENCING NEAR NORMAL TEMPERATURES AND PRECIPITATION IN
APRIL...VERY WARM AND DRY CONDITIONS RETURNED IN MAY. THIS TREND WAS
ESPECIALLY NOTICEABLE DURING THE SECOND HALF OF THE MONTH WHEN THE
HIGH TEMPERATURE REACHED THE UPPER 80S OR LOWER 90S ON SEVERAL
DAYS...AND MEASURABLE PRECIPITATION WAS RECORDED ON JUST FOUR DAYS
AT THE ROCHESTER AIRPORT.

THE AVERAGE TEMPERATURE OF 63.0 DEGREES WAS 6.0 DEGREES ABOVE
NORMAL...MAKING MAY 2012 THE SIXTH WARMEST MAY ON RECORD.
TEMPERATURES WARMED INTO THE 80S OR LOWER 90S ON TEN DAYS...AND
ABOVE TEMPERATURES WERE RECORDED ON 26 DAYS. A RECORD HIGH
TEMPERATURE OF 88 DEGREES WAS SET ON THE 25TH...WHILE A RECORD HIGH
LOW TEMPERATURE OF 68 DEGREES WAS REPORTED ON THE SAME DATE.

THE TOTAL RAINFALL OF 1.38 INCHES AT THE ROCHESTER AIRPORT WAS 1.49
INCHES BELOW NORMAL. MOST OF THIS RAIN (1.03 INCHES) FELL DURING
THE TIME SPAN COVERING THE FIRST NINE DAYS OF THE MONTH. WHILE THE
ROCHESTER METRO AREA WAS RATHER DRY...HEAVY RAIN FELL TO THE WEST ON
MAY 8TH AS A WARM FRONT STALLED JUST SOUTH OF LAKE ONTARIO.
THUNDERSTORMS THAT DEVELOPED AHEAD OF AN APPROACHING COLD FRONT ON
THE 29TH ALSO BROUGHT HEAVY RAIN...HAIL AND DAMAGING WIND GUSTS TO
AREAS SOUTH AND EAST OF ROCHESTER.

...SPRING REVIEW...

BOOKEND BY A HISTORICALLY VERY WARM MARCH AND WARM
MAY...METEOROLOGICAL SPRING (MAR-APR-MAY) FINISHED AS THE WARMEST ON
RECORD FOR ROCHESTER. APRIL WAS SLIGHTLY COOLER THAN NORMAL...AND
FOR THE FIRST TIME EVER...APRIL FINISHED COOLER THAN THE PRECEDING
MARCH.

CONTRARY TO LAST SPRING`S NEAR RECORD BREAKING PRECIPITATION...THIS
SPRING FINISHED WELL BELOW NORMAL IN THE PRECIPITATION CATEGORY. THE
DRY SPRING...LACK OF MUCH SNOW AND INFREQUENT THUNDERSTORMS ALSO
RESULTED NO MAJOR HYDROLOGIC ISSUES ACROSS THE REGION. SPRING
FINISHED AS THE 19TH DRIEST FOR ROCHESTER.


HERE ARE SOME STATISTICS FOR THE 3 SPRING MONTHS FOR ROCHESTER

TEMPERATURE..........52.1F  (+6.2) **RECORD WARM SPRING**
PRECIPITATION........5.71"  (-2.39")
SNOW.................7.5"   (-13.1")

&&

TJP/THOMAS

$$