Climatological Report (Monthly)
Issued by NWS Buffalo, NY

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CXUS51 KBUF 271314
CLMBUF

CLIMATE REPORT
NATIONAL WEATHER SERVICE BUFFALO NY
914 AM EDT THU JUN 27 2013

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

...THE BUFFALO NY CLIMATE SUMMARY FOR THE MONTH OF MAY 2013...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1871 TO 2013

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE  DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH              94   05/22/1911
 LOW               25   05/04/1926
HIGHEST            86   05/31                         89  05/20
LOWEST             34   05/13                         40  05/17
AVG. MAXIMUM     71.6              66.5     5.1     74.0
AVG. MINIMUM     51.2              47.4     3.8     53.6
MEAN             61.4              56.9     4.5     63.8
DAYS MAX >= 90      0               0.0     0.0        0
DAYS MAX <= 32      0               0.0     0.0        0
DAYS MIN <= 32      0               0.2    -0.2        0
DAYS MIN <= 0       0               0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         8.09   2011
 MINIMUM         0.53   1877
TOTALS           3.57              3.46    0.11     0.90
DAYS >= .01        12                                  7
DAYS >= .10         7                                  3
DAYS >= .50         2                                  1
DAYS >= 1.00        1                                  0
GREATEST
 24 HR. TOTAL    1.95   05/28 TO 05/29           04/30 TO 05/01
                                                          05/31 TO 05/31
                                                          05/31 TO 05/31

SNOWFALL (INCHES)
RECORDS
 TOTAL            7.9   1989
TOTALS              T               0.3    -0.3      0.0
SINCE 7/1        58.8              94.7   -35.9
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        T   05/13 TO 05/13

DEGREE_DAYS
HEATING TOTAL     174               272     -98      115
 SINCE 7/1       6032              6553    -521     5200
COOLING TOTAL      71                23      48       84
 SINCE 1/1         71                26      45       94
..................................................

WIND (MPH)
AVERAGE WIND SPEED              9.2
HIGHEST WIND SPEED/DIRECTION    39/230
HIGHEST GUST SPEED/DIRECTION    51/220    DATE  05/15

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   70
NUMBER OF DAYS FAIR            5
NUMBER OF DAYS PC             18
NUMBER OF DAYS CLOUDY          8

AVERAGE RH (PERCENT)     62

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              6     MIXED PRECIP               0
HEAVY RAIN                6     RAIN                       9
LIGHT RAIN               15     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       2
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                       9     FOG W/VIS <= 1/4 MILE      1
HAZE                      3

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

&&

...SPRING SWINGS IN MAY...

MAY BROUGHT BOTH A TASTE OF SUMMER AND LATE SEASON COLD SPELLS TO
WESTERN NEW YORK...WHICH IS NOT FAR FROM NORMAL AS WE TRANSITION
INTO THE SUMMER MONTHS. A COLD UPPER LEVEL LOW BROUGHT SNOW FLURRIES
TO THE REGION THE SECOND WEEK OF THE MONTH. THEN TO CLOSE THE MONTH
A WARM SPELL THE LAST WEEK OF THE MONTH BROUGHT THE WARMEST DAY OF THE
MONTH ON THE LAST DAY OF MAY. THERE WERE SEVERAL DAYS WITH
THUNDERSTORMS...AND SOME OF THESE STORMS BROUGHT SITES TO ABOVE
NORMAL PRECIPITATION FOR THE MONTH.

ABOUT TWO THIRDS OF THE MONTH HAD DAYS THAT AVERAGED 10 DEGREES OR
MORE FROM NORMAL...WITH ABOVE NORMAL DAYS OUTNUMBERING THE BELOW
NORMAL DAYS. THIS LEAD TO AN AVERAGE TEMPERATURE OF 61.4 DEGREES
THAT WAS 4.5F DEGREES ABOVE NORMAL. DESPITE THESE ANOMALIES THERE
WERE NO RECORD EXTREMES. THERE WERE 7 DAYS THAT REACHED THE 80F
MARK...ABOUT 5 MORE THAN THE NORM.

PRECIPITATION FOR THE MONTH FINISHED CLOSE TO NORMAL...WITH THE 3.57
INCHES OF PRECIPITATION 0.11 INCHES ABOVE NORMAL. SNOW FLURRIES FLEW
ON THE 12TH AND 13TH...AND THIS AMOUNT TIED WITH SEVERAL PREVIOUS
YEARS FOR THE DATE. THUNDERSTORMS OCCURRED ON SEVERAL DAYS TO CLOSE
THE MONTH...WITH ONE DAY RECORDING A NEW DAILY RECORD PRECIPITATION
TOTAL. THE 1.57 INCHES OF PRECIPITATION ON THE 28TH SET A NEW
RECORD.

THE MONTH BEGAN WARM...PLEASANT AND SUNNY BEFORE A COLD LOW SETTLED
OVER THE REGION WITH SEVERAL DAYS OF RAIN AND SNOW FLURRIES. MID
MONTH A TASTE OF SUMMER GREETED THE REGION AS THE MERCURY CLIMBED
INTO THE 80S WITH THUNDERSTORMS. A UNIQUE THREE STRAIGHT DAYS OF 85F
TEMPERATURES WERE RECORDED IN BUFFALO ON THE 20TH-22ND. THIS WAS
FOLLOWED BY A BRIEF SWING BACK TOWARDS COOLER WEATHER WITH HIGHS
ONLY IN THE 50S ON THE 24TH AND 25TH. A SLOW WARMING TREND TOWARDS
THE END OF THE MONTH BROUGHT THUNDERSTORMS BY MONTHS END AND
TEMPERATURES BACK INTO THE 80S...WITH THE 86F READING ON THE LAST
DAY OF THE MONTH THE WARMEST TEMPERATURE RECORDING FOR THE MONTH.

MAY WAS A SUNNY MONTH...WITH SUNSHINE 12 PERCENT ABOVE THE NORMAL OF
58 PERCENT. THERE WERE 21 DAYS THAT WERE MOSTLY SUNNY...INCLUDING 7
DAYS WITH FULL SUNSHINE. LAKE ERIE WATER TEMPERATURE STEADILY ROSE
FROM 44F TO 58F BY MONTHS END.

ALL IN ALL A SUNNY AND WARM MAY...INTERRUPTED A FEW TIMES BY LATE
SEASON CHILLS.

HERE ARE SOME STATISTICS FOR THE 3 MONTH SPRING PERIOD FOR
BUFFALO...(NORMALS)

TEMPERATURE.... 46.9 (45.6)
PRECIPITATION.. 8.55 (9.34)
SNOWFALL....... 10.1 (15.9)

&&

THOMAS

$$







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