Climatological Report (Seasonal)
Issued by NWS Upton, NY

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000
CXUS51 KOKX 011628
CLSISP

CLIMATE REPORT
NATIONAL WEATHER SERVICE NEW YORK NY
1218 PM EDT FRI JUN 1 2018

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

...THE ISLIP NY CLIMATE SUMMARY FOR THE SEASON, FROM
3/1/2018 TO 5/31/2018...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1963 TO 2018

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            84   05/26        MM      MM
                        05/02
LOWEST             24   03/19        MM      MM
AVG. MAXIMUM     57.0              57.4    -0.4
AVG. MINIMUM     40.7              40.6     0.1
MEAN             48.8              49.0    -0.2
DAYS MAX >= 90      0               0.3    -0.3
DAYS MAX <= 32      0               1.2    -1.2
DAYS MIN <= 32     31              19.5    11.5
DAYS MIN <= 0       0               0.0     0.0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        22.91   1998
 MINIMUM         6.00   1995
TOTALS          15.52             12.56    2.96    13.28
DAILY AVG.       0.17              0.14    0.03
DAYS >= .01        38              32.9     5.1
DAYS >= .10        23              20.8     2.2
DAYS >= .50         8               8.0     0.0
DAYS >= 1.00        5               3.3     1.7
GREATEST
 24 HR. TOTAL    3.11   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           36.5R              5.1    31.4
 LIQUID EQUIV    3.65              0.50    3.15
SINCE 7/1        65.9              24.8    41.1
 LIQUID 7/1      6.59
DAYS >= TRACE      15               2.6    12.4
DAYS >= 1.0         5               1.7     3.3
GREATEST
 SNOW DEPTH        18R  03/22
 24 HR TOTAL     14.9R  MM
 STORM TOTAL       MM
 (MM/DD(HH))            MM

DEGREE_DAYS
HEATING TOTAL    1510              1495      15
 SINCE 7/1         MM              5390      MM
COOLING TOTAL      48                24      24
 SINCE 1/1         48                24      24
..............................................................

WIND (MPH)
AVERAGE WIND SPEED              10.6
HIGHEST WIND SPEED/DIRECTION    38/340    DATE  03/02
HIGHEST GUST SPEED/DIRECTION    53/290    DATE  04/04

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.60
NUMBER OF DAYS FAIR           15
NUMBER OF DAYS PC             34
NUMBER OF DAYS CLOUDY         43

AVERAGE RH (PERCENT)     68

WEATHER CONDITIONS. NUMBER OF DAYS WITH
  0
 14
  0
  0
  6
  5
 17
HAZE                      7

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

$$


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