Climatological Report (Seasonal)
Issued by NWS Upton, NY

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000
CXUS51 KOKX 020110
CLSISP

CLIMATE REPORT
NATIONAL WEATHER SERVICE NEW YORK NY
800 PM EST MON MAR 1 2010

...THE ISLIP NY CLIMATE SUMMARY FOR THE SEASON, FROM
12/1/2009 TO 2/28/2010...

CLIMATE NORMAL PERIOD 1971 TO 2000
CLIMATE RECORD PERIOD 1986 TO 2010

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE
                                          NORMAL
.............................................................
TEMPERATURE (F)
RECORD
 HIGH              77   12/07/1998
 LOW               -7   01/15/1988
                        01/22/1984
HIGHEST            65   12/03        MM      MM
LOWEST             12   01/30        MM      MM
AVG. MAXIMUM     39.0              41.9    -2.9
AVG. MINIMUM     25.2              25.5    -0.3
MEAN             32.1              33.7    -1.6
DAYS MAX >= 90      0               0.0     0.0
DAYS MAX <= 32     19              16.1     2.9
DAYS MIN <= 32     76              67.1     8.9
DAYS MIN <= 0       0               0.3    -0.3

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        17.31   2010
 MINIMUM         8.57   2007
TOTALS          17.31R            11.73    5.58    11.67
DAILY AVG.       0.19              0.13    0.06
DAYS >= .01        32              31.1     0.9
DAYS >= .10        22              20.0     2.0
DAYS >= .50        14               7.9     6.1
DAYS >= 1.00        5               2.3     2.7
GREATEST
 24 HR. TOTAL    2.50   MM
 STORM TOTAL       MM
 (MM/DD(HH))            MM

SNOWFALL (INCHES)
RECORDS
 TOTAL           53.4   2010
 24 HR TOTAL     14.3   MM
TOTALS           53.4R               MM      MM
 LIQUID EQUIV    5.34                MM      MM
SINCE 7/1        53.4                MM      MM
 LIQUID 7/1      5.34
DAYS >= TRACE      25                MM      MM
DAYS >= 1.0         8               5.4     2.6
GREATEST
 SNOW DEPTH        22R  12/21
 24 HR TOTAL     14.3R  MM
 STORM TOTAL       MM
 (MM/DD(HH))            MM

DEGREE_DAYS
HEATING TOTAL    2939              2912      27
 SINCE 7/1       3838              3905     -67
COOLING TOTAL       0                 0       0
 SINCE 1/1          0                 0       0

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

WIND (MPH)
AVERAGE WIND SPEED              11.0
HIGHEST WIND SPEED/DIRECTION    39/160    DATE  01/25
HIGHEST GUST SPEED/DIRECTION    56/300    DATE  12/29

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM

NUMBER OF DAYS FAIR           23
NUMBER OF DAYS PC             32
NUMBER OF DAYS CLOUDY         35

AVERAGE RH (PERCENT)     60

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               1
HEAVY RAIN                3     RAIN                      16
LIGHT RAIN               24     FREEZING RAIN              0
LT FREEZING RAIN          2     HAIL                       0
HEAVY SNOW                4     SNOW                      13
LIGHT SNOW               23     SLEET                      8
FOG                      30     FOG W/VIS <= 1/4 MILE      5
HAZE                     16

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

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