Climatological Report (Seasonal)
Issued by NWS Upton, NY

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000
CXUS51 KOKX 021702
CLSISP

CLIMATE REPORT
NATIONAL WEATHER SERVICE NEW YORK NY
102 PM EDT THU JUN 2 2011

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

...THE ISLIP NY CLIMATE SUMMARY FOR THE SEASON, FROM
3/1/2011 TO 5/31/2011...

CLIMATE NORMAL PERIOD 1971 TO 2000
CLIMATE RECORD PERIOD 1986 TO 2011

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE
                                          NORMAL
.............................................................
TEMPERATURE (F)
RECORD
 HIGH              98   05/20/1996
 LOW                5   03/04/2009
HIGHEST            86   05/30        MM      MM
LOWEST             18   03/03        MM      MM
AVG. MAXIMUM     59.1              58.5     0.6
AVG. MINIMUM     43.0              40.2     2.8
MEAN             51.0              49.4     1.6
DAYS MAX >= 90      0               0.6    -0.6
DAYS MAX <= 32      1               1.1    -0.1
DAYS MIN <= 32     19              20.2    -1.2
DAYS MIN <= 0       0               0.0     0.0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        22.91   1998
 MINIMUM         6.00   1995
TOTALS          11.25             12.79   -1.54    15.04
DAILY AVG.       0.12              0.14   -0.02
DAYS >= .01        32              33.0    -1.0
DAYS >= .10        23              20.6     2.4
DAYS >= .50         6               8.0    -2.0
DAYS >= 1.00        3               3.1    -0.1
GREATEST
 24 HR. TOTAL    1.65   MM
 STORM TOTAL       MM
 (MM/DD(HH))            MM

SNOWFALL (INCHES)
RECORDS
 TOTAL           18.0   1996
 24 HR TOTAL      9.7   03/02/2009 TO 03/02/2009
TOTALS            2.1                MM      MM
 LIQUID EQUIV    0.21                MM      MM
SINCE 7/1        55.3                MM      MM
 LIQUID 7/1      5.53
DAYS >= TRACE       5                MM      MM
DAYS >= 1.0         1               1.7    -0.7
GREATEST
 SNOW DEPTH         2   03/24
 24 HR TOTAL      1.4   MM
 STORM TOTAL       MM
 (MM/DD(HH))            MM

DEGREE_DAYS
HEATING TOTAL    1315              1458    -143
 SINCE 7/1         MM              5363      MM
COOLING TOTAL      58                15      43
 SINCE 1/1         58                15      43
..............................................................

WIND (MPH)
AVERAGE WIND SPEED              10.3
HIGHEST WIND SPEED/DIRECTION    40/140    DATE  04/17
HIGHEST GUST SPEED/DIRECTION    55/130    DATE  04/17

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.70
NUMBER OF DAYS FAIR            8
NUMBER OF DAYS PC             39
NUMBER OF DAYS CLOUDY         45

AVERAGE RH (PERCENT)     70

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                6     RAIN                      17
LIGHT RAIN               39     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       2
LIGHT SNOW                2     SLEET                      4
FOG                      50     FOG W/VIS <= 1/4 MILE     18
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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