Climatological Report (Monthly)
Issued by NWS Buffalo, NY

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CXUS51 KBUF 051758
CLMROC

CLIMATE REPORT
NATIONAL WEATHER SERVICE BUFFALO NY
1135 AM EDT SUN MAY 1 2016

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

...THE ROCHESTER NY CLIMATE SUMMARY FOR THE MONTH OF APRIL 2016...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1871 TO 2016

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE  DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH              93   04/28/1990
                        04/30/1970
 LOW               11   04/04/1879
HIGHEST            77   04/21                         84  04/13
LOWEST             14   04/05                         27  04/25
                                                          04/01
AVG. MAXIMUM     52.6              56.0    -3.4     58.0
AVG. MINIMUM     32.0              36.6    -4.6     37.3
MEAN             42.3              46.3    -4.0     47.6
DAYS MAX >= 90      0               0.0     0.0        0
DAYS MAX <= 32      3               0.2     2.8        0
DAYS MIN <= 32     16               9.5     6.5        6
DAYS MIN <= 0       0               0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         5.81   2011
 MINIMUM         0.94   1884
TOTALS           1.56              2.73   -1.17     2.70
DAYS >= .01        13                                 13
DAYS >= .10         7                                  6
DAYS >= .50         1                                  2
DAYS >= 1.00        0                                  0
GREATEST
 24 HR. TOTAL    0.65   04/25 TO 04/26           04/20 TO 04/20

SNOWFALL (INCHES)
RECORDS
 TOTAL           23.8   1901
TOTALS            8.8               3.9     4.9      0.5
SINCE 7/1        63.7              99.1   -35.4    101.9
SNOWDEPTH AVG.      0                MM      MM        0
DAYS >= 1.0         2               1.2     0.8        0
GREATEST
 SNOW DEPTH         5   04/04                          0  MM
 24 HR TOTAL      5.0   04/03 TO 04/03           04/23 TO 04/23

DEGREE_DAYS
HEATING TOTAL     674               565     109      514
 SINCE 7/1       5353              6303    -950     6686
COOLING TOTAL       0                 4      -4        0
 SINCE 1/1          0                 4      -4        0
....................................................

WIND (MPH)
AVERAGE WIND SPEED              9.0
HIGHEST WIND SPEED/DIRECTION    36/250
HIGHEST GUST SPEED/DIRECTION    53/250    DATE  04/01

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.60
NUMBER OF DAYS FAIR            7
NUMBER OF DAYS PC              9
NUMBER OF DAYS CLOUDY         14

AVERAGE RH (PERCENT)     58

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               1
HEAVY RAIN                0     RAIN                       3
LIGHT RAIN               13     FREEZING RAIN              0
LT FREEZING RAIN          1     HAIL                       0
HEAVY SNOW                1     SNOW                       3
LIGHT SNOW                8     SLEET                      0
FOG                      10     FOG W/VIS <= 1/4 MILE      1
HAZE                      4

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

&&

...SNOWY START TO APRIL...WITH COOL TEMPERATURES...

AFTER A MILD...AND BELOW NORMAL SNOWFALL WINTER...APRIL TURNED THE
TABLES WITH BELOW NORMAL TEMPERATURES AND ABOVE NORMAL SNOWFALL. THE
SNOW ALL FELL WITHIN THE FIRST HALF OF THE MONTH...AND A BRIEF WARM
SPELL TO START THE SECOND HALF OF THE MONTH ALLOWED FOR SPRING`S
FLOWERS TO BLOOM FORTH.

THE AVERAGE TEMPERATURE FOR APRIL WAS 42.3F WHICH IS 4 DEGREES BELOW
NORMAL. THERE WAS ONE RECORD SET THIS MONTH...AS THE 14 DEGREES ON
THE 5TH BROKE THE FORMER RECORD OF 15 DEGREES SET BACK IN 1879. THE
WARMEST DAY WAS 77 DEGREES ON THE 21ST...DURING A ONE WEEK STRETCH
OF PLEASANT SPRING TEMPERATURES.

PRECIPITATION WAS BELOW NORMAL...WITH 1.56 INCHES RECORDED AND THIS
TOTAL FALLS JUST OVER AN INCH BELOW NORMAL. SNOWFALL HOWEVER WAS
ABOVE NORMAL WITH 8.8 INCHES MEASURED...WITH ALL SNOW MEASURED
WITHIN THE FIRST 10 DAYS OF THE MONTH. THIS TOTAL WAS MORE THAN THE
TYPICAL SNOWY MONTHS OF NOVEMBER...DECEMBER AND MARCH...AND WAS THE
GREATEST APRIL SNOW SINCE 1995. THERE WERE 6 DAYS THAT RECORDED
SNOWFALL...DOUBLE THE NORMAL AMOUNT OF DAYS.

A SERIES OF CLIPPER STORM SYSTEMS WITHIN A LONG WAVE TROUGH OVER THE
EASTERN UNITED STATES MAINTAINED UNSEASONABLY COOL AIR...WITH
PERIODIC SNOWS OVER THE FIRST 2 WEEKS OF THE MONTH. IT WAS THE
COLDEST FIRST 10 DAYS TO APRIL SINCE 2003 FOR WESTERN NEW YORK.
AFTER GRAUPEL AND WET SNOW FELL OVER PORTIONS OF WESTERN NEW YORK ON
THE 12TH...A BROAD RIDGE OF HIGH PRESSURE USHERED IN SPRING WITH
STEADILY WARMING TEMPERATURES AND MULTIPLE DAYS OF SUNSHINE THROUGH
THE MIDDLE PORTION OF THE MONTH. THIS ALLOWED FOR SPRINGS FLOWERS TO
BLOOM FORTH. THE WEATHER PATTERN FLIPPED AGAIN FOR THE FINAL WEEK OF
APRIL WITH BELOW NORMAL TEMPERATURES AND DAMP DAYS TO CLOSE OUT THE
MONTH.

IN ALL A COOL APRIL...WITH SNOW TO START...AND DAMPNESS TO CLOSE.

&&

THOMAS

$$



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