Climatological Report (Annual)
Issued by NWS Upton, NY

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000
CXUS51 KOKX 012344
CLAISP

NYCCLMISP 000
TTAA00 KOKX 012211


CLIMATE REPORT
NATIONAL WEATHER SERVICE NEW YORK NY
644 PM EST SUN JAN 1 2012

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

...THE ISLIP NY CLIMATE SUMMARY FOR THE YEAR OF 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  DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH             102   07/05/1999
 LOW               -7   01/15/1988
                        01/22/1984
HIGHEST           100   07/22        MM      MM      101  07/06
LOWEST              4   01/24        MM      MM       12  01/30
AVG. MAXIMUM     62.5              60.3     2.2     62.2
AVG. MINIMUM     46.0              44.3     1.7     45.7
MEAN             54.2              52.3     1.9     54.0
DAYS MAX >= 90     12               4.8     7.2       17
DAYS MAX <= 32     18              18.3    -0.3       18
DAYS MIN <= 32     97              97.9    -0.9       95
DAYS MIN <= 0       0               0.1    -0.1        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        65.32   1989
 MINIMUM        34.41   1985
TOTALS          52.32             46.24    6.08    44.02
DAILY AVG.       0.14              0.13    0.01     0.12
DAYS >= .01       121             118.9     2.1      103
DAYS >= .10        84              75.2     8.8       65
DAYS >= .50        35              30.5     4.5       27
DAYS >= 1.00       14              11.8     2.2       12
GREATEST
 24 HR. TOTAL    6.05   MM
 STORM TOTAL       MM                                 MM
 (MM/DD(HH))            MM

SNOWFALL (INCHES)
RECORDS
 TOTAL           59.9   2005
 24 HR TOTAL       MM   MM
 SNOW DEPTH        MM   MM
TOTALS           40.7              24.9    15.8     43.4
 LIQUID EQUIV    4.07              2.50    1.57     4.34
SINCE 7/1         0.3               6.0    -5.7     14.9
 LIQUID 7/1      0.03              0.60   -0.57     1.49
SNOWDEPTH AVG.      1                MM      MM        1
DAYS >= TRACE      28              12.3    15.7       35
DAYS >= 1.0         7               7.5    -0.5        7
GREATEST
 SNOW DEPTH        18   01/27                         14  12/27
 24 HR TOTAL     14.0   MM
 STORM TOTAL       MM                                 MM
 (MM/DD(HH))            MM

DEGREE_DAYS
HEATING TOTAL    4879              5426    -547     5014
 SINCE 7/1         MM              1927      MM     1917
COOLING TOTAL    1082               787     295     1127
 SINCE 1/1       1082               787     295     1127
..................................................

WIND (MPH)
AVERAGE WIND SPEED              11.4
RESULTANT WIND SPEED/DIRECTION   2/265
HIGHEST WIND SPEED/DIRECTION    47/130    DATE  08/28
HIGHEST GUST SPEED/DIRECTION      MM      DATE   MM

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.60
NUMBER OF DAYS FAIR           61
NUMBER OF DAYS PC            165
NUMBER OF DAYS CLOUDY        139

AVERAGE RH (PERCENT)     69

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               1
HEAVY RAIN               27     RAIN                      53
LIGHT RAIN              129     FREEZING RAIN              2
LT FREEZING RAIN          5     HAIL                       0
HEAVY SNOW                3     SNOW                      12
LIGHT SNOW               22     SLEET                     10
FOG                     186     FOG W/VIS <= 1/4 MILE     43
HAZE                     80

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

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