Climatological Report (Seasonal)
Issued by NWS Upton, NY

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000
CXUS51 KOKX 011524
CLSISP

CLIMATE REPORT
NATIONAL WEATHER SERVICE NEW YORK NY
1119 AM EDT THU JUN 1 2017



...THE ISLIP NY CLIMATE SUMMARY FOR THE SEASON, FROM
3/1/2017 TO 5/31/2017...

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              98   05/20/1996
 LOW                5   03/04/2009
HIGHEST            89   05/19        MM      MM
                        05/18
LOWEST             13   03/13        MM      MM
AVG. MAXIMUM     58.1              57.4     0.7
AVG. MINIMUM     41.4              40.6     0.8
MEAN             49.8              49.0     0.8
DAYS MAX >= 90      0               0.3    -0.3
DAYS MAX <= 32      5               1.2     3.8
DAYS MIN <= 32     19              19.5    -0.5
DAYS MIN <= 0       0               0.0     0.0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        22.91   1998
 MINIMUM         6.00   1995
TOTALS          13.28             12.56    0.72     8.72
DAILY AVG.       0.14              0.14    0.00
DAYS >= .01        35              32.9     2.1
DAYS >= .10        20              20.8    -0.8
DAYS >= .50         9               8.0     1.0
DAYS >= 1.00        5               3.3     1.7
GREATEST
 24 HR. TOTAL    1.92   MM
 STORM TOTAL       MM
 (MM/DD(HH))            MM

SNOWFALL (INCHES)
RECORDS
 TOTAL           19.7   2015
 24 HR TOTAL      9.7   03/02/2009 TO 03/02/2009
TOTALS            7.4               5.1     2.3
 LIQUID EQUIV    0.74              0.50    0.24
SINCE 7/1        39.3              24.8    14.5
 LIQUID 7/1      3.93
DAYS >= TRACE       5               2.6     2.4
DAYS >= 1.0         2               1.7     0.3
GREATEST
 SNOW DEPTH         3   03/14
                        03/11
                        03/12
 24 HR TOTAL      4.0   MM
 STORM TOTAL       MM
 (MM/DD(HH))            MM

DEGREE_DAYS
HEATING TOTAL    1425              1495     -70
 SINCE 7/1         MM              5390      MM
COOLING TOTAL      39                24      15
 SINCE 1/1         39                24      15
..............................................................

WIND (MPH)
AVERAGE WIND SPEED              11.0
HIGHEST WIND SPEED/DIRECTION    36/340    DATE  03/22
HIGHEST GUST SPEED/DIRECTION    52/060    DATE  03/14

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.70
NUMBER OF DAYS FAIR           13
NUMBER OF DAYS PC             41
NUMBER OF DAYS CLOUDY         38

AVERAGE RH (PERCENT)     68

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                5     RAIN                      14
LIGHT RAIN               39     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       1
HEAVY SNOW                0     SNOW                       3
LIGHT SNOW                3     SLEET                      1
FOG                      41     FOG W/VIS <= 1/4 MILE     12
HAZE                      2

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

$$


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