Climatological Report (Seasonal)
Issued by NWS Upton, NY

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CXUS51 KOKX 031344
CLSISP

CLIMATE REPORT
NATIONAL WEATHER SERVICE NEW YORK NY
938 AM EDT SUN SEP 3 2017

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

...THE ISLIP NY CLIMATE SUMMARY FOR THE SEASON, FROM
6/1/2017 TO 8/31/2017...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1963 TO 2017

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            93   07/21        MM      MM
                        06/13
LOWEST             47   06/08        MM      MM
AVG. MAXIMUM     80.5              79.6     0.9
AVG. MINIMUM     63.9              63.9     0.0
MEAN             72.2              71.7     0.5
DAYS MAX >= 90      8               4.3     3.7
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           9.41             11.68   -2.27     5.25
DAILY AVG.       0.10              0.13   -0.03
DAYS >= .01        31              27.7     3.3
DAYS >= .10        21              17.5     3.5
DAYS >= .50         5               7.3    -2.3
DAYS >= 1.00        2               3.0    -1.0
GREATEST
 24 HR. TOTAL    1.91   MM
 STORM TOTAL       MM
 (MM/DD(HH))            MM

SNOWFALL (INCHES)
RECORDS
 TOTAL              T   2012
                        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      42                42       0
 SINCE 7/1          0                 5      -5
COOLING TOTAL     729               662      67
 SINCE 1/1        768               686      82
..............................................................

WIND (MPH)
AVERAGE WIND SPEED              8.0
HIGHEST WIND SPEED/DIRECTION    29/030    DATE  07/29
HIGHEST GUST SPEED/DIRECTION    41/190    DATE  06/19

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.60
NUMBER OF DAYS FAIR           17
NUMBER OF DAYS PC             54
NUMBER OF DAYS CLOUDY         21

AVERAGE RH (PERCENT)     73

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                5     RAIN                      14
LIGHT RAIN               37     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                      42     FOG W/VIS <= 1/4 MILE      5
HAZE                      5

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

$$


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