Climatological Report (Monthly)
Issued by NWS Buffalo, NY

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000
CXUS51 KBUF 050435
CLMROC

CLIMATE REPORT
NATIONAL WEATHER SERVICE BUFFALO NY
149 PM EDT THU JUL 2 2015

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

...THE ROCHESTER NY CLIMATE SUMMARY FOR THE MONTH OF JUNE 2015...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1871 TO 2015

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE  DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH             100   06/21/1953
 LOW               35   06/08/1949
HIGHEST            83   06/22                         90  06/30
                        06/12                             06/17
LOWEST             42   06/03                         48  06/20
                                                          06/01
AVG. MAXIMUM     75.2              76.6    -1.4     79.7
AVG. MINIMUM     56.5              55.9     0.6     58.0
MEAN             65.9              66.2    -0.3     68.8
DAYS MAX >= 90      0               0.9    -0.9        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         8.14   1922
 MINIMUM         0.22   1963
TOTALS           6.20              3.34    2.86     2.06
DAYS >= .01        17                                  8
DAYS >= .10        12                                  6
DAYS >= .50         5                                  1
DAYS >= 1.00        2                                  0
GREATEST
 24 HR. TOTAL    1.58   06/10 TO 06/10

SNOWFALL (INCHES)
RECORDS
 TOTAL             MM   MM
TOTALS            0.0               0.0     0.0      0.0
SINCE 7/1       101.9              99.5     2.4    112.7
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

DEGREE_DAYS
HEATING TOTAL      57                68     -11       29
 SINCE 7/1       6871              6646     225     7015
COOLING TOTAL      94               106     -12      150
 SINCE 1/1        197               136      61      189
.................................................

WIND (MPH)
AVERAGE WIND SPEED              7.6
HIGHEST WIND SPEED/DIRECTION    32/330
HIGHEST GUST SPEED/DIRECTION    58/270    DATE  06/10

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.70
NUMBER OF DAYS FAIR            2
NUMBER OF DAYS PC             11
NUMBER OF DAYS CLOUDY         17

AVERAGE RH (PERCENT)     72

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              7     MIXED PRECIP               0
HEAVY RAIN                6     RAIN                      13
LIGHT RAIN               18     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                      19     FOG W/VIS <= 1/4 MILE      0
HAZE                      2

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

&&

...STORMY AND WET JUNE...

ON THE HEELS OF A SOAKING END TO MAY...THE MONTH OF JUNE CONTINUED
THE ROUNDS OF SHOWERS AND THUNDERSTORMS. OVER HALF THE DAYS
CONTAINED MEASURABLE RAINFALL...AND THIS RAINFALL WAS SPREAD EVENLY
THROUGHOUT THE MONTH. THE MAJORITY OF WESTERN NEW YORK FINISHED AN
INCH OR MORE ABOVE NORMAL JUNE PRECIPITATION. ALONG WITH THIS
RAIN...DAYS WERE CLOUDIER THAN NORMAL AND AIR TEMPERATURES FINISHED
THE MONTH SLIGHTLY BELOW NORMAL.

THE AVERAGE TEMPERATURE FOR JUNE FINISHED AT 65.9F DEGREES WHICH IS
0.3 DEGREES BELOW NORMAL. THE WARMEST TEMPERATURE THIS MONTH WAS A
MERE 83F DEGREES ON THE 12TH AND 22ND. WHILE THERE WERE 12 DAYS THAT
REACHED INTO THE 80S...EXACTLY NORMAL...THERE WERE NO DAYS THAT
EXCEEDED 85 DEGREES OR MORE FOR THE FIRST TIME SINCE 1982. ON THE
27TH THE TEMPERATURE REACHED A HIGH OF ONLY 65F...WHICH TIED WITH
1905 FOR THE COOLEST MAXIMUM TEMPERATURE FOR THE DATE.

PRECIPITATION TOPPED SIX INCHES FOR THE 11TH TIME IN RECORDED
HISTORY (RECORDS START 1871). THE 6.20 INCHES WAS NEARLY THREE
INCHES ABOVE NORMAL AND MADE FOR THE 9TH WETTEST JUNE ON RECORD. OF
THE PAST SIX JUNES...THREE HAVE HAD OVER SIX INCHES OF RAINFALL.
THERE WAS MEASURABLE RAINFALL ON 17 DAYS THIS MONTH...TIED FOR 5TH
GREATEST OF 145 YEARS OF RECORD.

THE RECORD SOAKING RAINFALL OF LATE MAY...THAT ENDED IN THE WEE
HOURS OF JUNE WAS JUST A SIGN OF THE PATTERN FOR THE MONTH OF JUNE.
A MEAN LONGWAVE TROUGH REMAINED OVER THE GREAT LAKES REGION THIS
MONTH...A TROUGH THAT FAVORED STORM DEVELOPMENT OVER THE EASTERN
GREAT LAKES REGION. SEVERAL STORM SYSTEMS PRODUCED MODERATE TO HEAVY
RAINFALL THROUGH THE MONTH. THE FIRST SIGNIFICANT RAINFALL EVENT
CAME ON THE 5TH OF THE MONTH WHEN THUNDERSTORMS DROPPED A HALF TO
ONE INCH OF RAINFALL ACROSS THE ROCHESTER METRO AREA. THE SECOND
SIGNIFICANT STORM SYSTEM CAME THROUGH WESTERN NEW YORK ON THE 8TH
THROUGH THE 10TH OF THE MONTH WHEN A SERIES OF LOW PRESSURE SYSTEMS
SPREAD ONE TO TWO INCHES OF RAINFALL ACROSS THE GENESEE VALLEY.
THUNDERSTORMS ON THE AFTERNOON OF THE 10TH PRODUCED A WIND GUST TO
58 MPH AT THE ROCHESTER AIRPORT. MORE WIDESPREAD SEVERE
THUNDERSTORMS DROPPED ACROSS THE REGION DURING THE EVENING HOURS OF
THE 11TH. STRAIGHT LINE WINDS FELLED SEVERAL TREES ACROSS THE
ROCHESTER METRO AREA AND A BRIEF TORNADO SPUN UP JUST NORTH OF
CANANDAIGUA DURING THE LATE EVENING HOURS. THE NEXT SYSTEM OF NOTE
CAME SEVERAL DAYS LATER WHEN ANOTHER WARM FRONT AND HUMID AIRMASS
EDGED INTO WESTERN NEW YORK THROUGH THE EARLY MORNING HOURS OF
SUNDAY THE 14TH. ONE SLOW MOVING THUNDERSTORM PRODUCE FLASH FLOODING
ACROSS WARSAW IN WYOMING COUNTY LATE SUNDAY AFTERNOON. ADDITIONAL
SHOWERS AND DRENCHING THUNDERSTORMS PASSED ACROSS WESTERN NEW YORK
LATER SUNDAY NIGHT. ANOTHER COLD FRONT CROSSED THE REGION ON THE
23RD WITH EARLY MORNING HEAVY RAIN SHOWERS AND A FEW SEVERE
THUNDERSTORMS DOWNING TREES ACROSS WESTERN NEW YORK. LASTLY ANOTHER
SYNOPTIC STORM SYSTEM ROSE NORTHWARD FROM THE SOUTH WITH A LENGTHY
PERIOD OF HEAVY RAIN SHOWERS ON THE 27TH-28TH. THIS WEEKEND SOAKING
RAINFALL BROUGHT SEVERAL INCHES OF RAIN TO WESTERN NEW YORK AND
RUINED MANY OUTDOOR PLANS.

IN ALL A COOL...AND VERY WET START TO SUMMER.

&&

THOMAS

$$


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