Climatological Report (Seasonal)
Issued by NWS Upton, NY

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CXUS51 KOKX 022030
CLSISP

NYCCLMISP 000
TTAA00 KOKX 021404


CLIMATE REPORT
NATIONAL WEATHER SERVICE NEW YORK NY
430 PM EDT FRI SEP 2 2011

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

...THE ISLIP NY CLIMATE SUMMARY FOR THE SEASON, FROM
6/1/2011 TO 8/31/2011...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1986 TO 2011

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           100   07/22        MM      MM
LOWEST             50   06/05        MM      MM
AVG. MAXIMUM     82.3              79.6     2.7
AVG. MINIMUM     65.6              63.9     1.7
MEAN             73.9              71.7     2.2
DAYS MAX >= 90     12               4.3     7.7
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          17.02             11.68    5.34     7.67
DAILY AVG.       0.18              0.13    0.05
DAYS >= .01        30              27.7     2.3
DAYS >= .10        21              17.5     3.5
DAYS >= .50        10               7.3     2.7
DAYS >= 1.00        5               3.0     2.0
GREATEST
 24 HR. TOTAL    6.05   08/14 TO 08/15
 STORM TOTAL       MM
 (MM/DD(HH))            MM

SNOWFALL (INCHES)
RECORDS
 TOTAL              T   1999
 24 HR TOTAL       MM
TOTALS            0.0               0.0     0.0
 LIQUID EQUIV    0.00              0.00    0.00
SINCE 7/1         0.0               0.0     0.0
 LIQUID 7/1      0.00
DAYS >= TRACE       0               0.0     0.0
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      14                42     -28
 SINCE 7/1          0                 5      -5
COOLING TOTAL     862               662     200
 SINCE 1/1        920               686     234
..............................................................

WIND (MPH)
AVERAGE WIND SPEED              18.0
HIGHEST WIND SPEED/DIRECTION    47/130    DATE  08/28
HIGHEST GUST SPEED/DIRECTION    62/140    DATE  08/28

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.60
NUMBER OF DAYS FAIR           18
NUMBER OF DAYS PC             47
NUMBER OF DAYS CLOUDY         27

AVERAGE RH (PERCENT)     70

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN               12     RAIN                      13
LIGHT RAIN               34     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                      50     FOG W/VIS <= 1/4 MILE      7
HAZE                     32

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

$$






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