Climatological Report (Seasonal)
Issued by NWS Upton, NY

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CXUS51 KOKX 012110
CLSISP

NYCCLMISP 000
TTAA00 KOKX 012102


CLIMATE REPORT
NATIONAL WEATHER SERVICE NEW YORK NY
502 PM EDT TUE SEP 1 2009

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

...THE ISLIP NY CLIMATE SUMMARY FOR THE SEASON, FROM
6/1/2009 TO 8/31/2009...

CLIMATE NORMAL PERIOD 1971 TO 2000
CLIMATE RECORD PERIOD 1986 TO 2009

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE
                                          NORMAL
.............................................................
TEMPERATURE (F)
RECORD
 HIGH             102   07/05/1999
 LOW               42   06/01/2009
HIGHEST            91   08/10        MM      MM
LOWEST             42R  06/01        MM      MM
AVG. MAXIMUM     77.6              80.8    -3.2
AVG. MINIMUM     63.1              63.4    -0.3
MEAN             70.3              72.1    -1.8
DAYS MAX >= 90      3               6.4    -3.4
DAYS MAX <= 32      0               0.0     0.0
DAYS MIN <= 32      0               0.0     0.0
DAYS MIN <= 0       0               0.0     0.0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        22.31   1990
 MINIMUM         3.74   2005
TOTALS          14.91             11.12    3.79    10.04
DAILY AVG.       0.16              0.12    0.04
DAYS >= .01        39              27.8    11.2
DAYS >= .10        26              17.5     8.5
DAYS >= .50        12               7.2     4.8
DAYS >= 1.00        4               3.2     0.8
GREATEST
 24 HR. TOTAL    2.34   MM
 STORM TOTAL       MM
 (MM/DD(HH))            MM

SNOWFALL (INCHES)
RECORDS
 TOTAL              T   1999
 24 HR TOTAL       MM
TOTALS            0.0                MM      MM
 LIQUID EQUIV    0.00                MM      MM
SINCE 7/1         0.0                MM      MM
 LIQUID 7/1      0.00
DAYS >= TRACE       0                MM      MM
DAYS >= 1.0         0               0.0     0.0
GREATEST
 SNOW DEPTH         0   MM
 24 HR TOTAL      0.0   MM
 STORM TOTAL       MM
 (MM/DD(HH))            MM

DEGREE_DAYS
HEATING TOTAL      62                25      37
 SINCE 7/1          8                 1       7
COOLING TOTAL     582               676     -94
 SINCE 1/1        601               691     -90

FREEZE DATES
RECORD
 EARLIEST     MM
 LATEST       MM
EARLIEST                        MM
LATEST                          MM
..............................................................

WIND (MPH)
AVERAGE WIND SPEED              7.2
HIGHEST WIND SPEED/DIRECTION    35/330    DATE  06/26
HIGHEST GUST SPEED/DIRECTION    47/310    DATE  06/26

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM

NUMBER OF DAYS FAIR           14
NUMBER OF DAYS PC             40
NUMBER OF DAYS CLOUDY         38

AVERAGE RH (PERCENT)     71

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM             19     MIXED PRECIP               0
HEAVY RAIN               10     RAIN                      16
LIGHT RAIN               52     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                      62     FOG W/VIS <= 1/4 MILE      4
HAZE                     42

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

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