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977
CXUS51 KOKX 021757 RRA
CLSISP

NYCCLSISP 000
TTAA00 OKX 021752

CLIMATE REPORT
NATIONAL WEATHER SERVICE NEW YORK, NY
1252 PM EST TUE MAR 02 2021

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

...THE ISLIP NY CLIMATE SUMMARY FOR THE SEASON, FROM
12/1/2020 TO 2/28/2021...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1963 TO 2021

WEATHER         OBSERVED          NORMAL  DEPART   LAST YEAR`S
                VALUE   DATE(S)   VALUE   FROM     VALUE
                                          NORMAL
..............................................................
TEMPERATURE (F)
RECORD
 HIGH             77   12/07/1998
 LOW             -14   02/13/1967
HIGHEST           63   12/13         MM      MM
LOWEST            13   02/08         MM      MM
                       02/09
AVG. MAXIMUM    40.9               40.4     0.5
AVG. MINIMUM    27.3               25.6     1.7
MEAN            34.1               33.0     1.1
DAYS MAX >= 90     0                0.0     0.0
DAYS MAX <= 32    11               17.0    -6.0
DAYS MIN <= 32    69               68.4     0.6
DAYS MIN <= 0      0                0.1    -0.1

PRECIPITATION (INCHES)
RECORD
 MAXIMUM       22.25   1979
 MINIMUM        5.38   2002
TOTALS         10.57              10.96   -0.39    13.58
DAILY AVG.      0.12               0.12   -0.00
DAYS >= .01       35               30.9     4.1
DAYS >= .10       21               19.5     1.5
DAYS >= .50        9                7.5     1.5
DAYS >= 1.00       2                2.4    -0.4
GREATEST
 24 HR. TOTAL   1.05   12/25 TO 12/25
 STORM TOTAL      MM
 (MM/DD(HH))

SNOWFALL (INCHES)
RECORDS
 TOTAL          57.8   2014
 24 HR TOTAL    23.4   MM
TOTALS          33.5               19.2    14.3
 LIQUID EQUIV   3.40               1.90    1.50
SINCE 7/1       33.5               19.7    13.8
 LIQUID 7/1     3.35
DAYS >= TRACE     25               10.0    15.0
DAYS >= 1.0        7                6.0     1.0
GREATEST
 SNOW DEPTH       11   02/02
                       02/08
 24 HR TOTAL    10.3   02/01 TO 02/01
 STORM TOTAL      MM
 (MM/DD(HH))

DEGREE DAYS
HEATING TOTAL   2749               2879    -130
 SINCE 7/1      3520               3895    -375
COOLING TOTAL      0                  0       0
 SINCE 1/1         0                  0       0
..............................................................

WIND (MPH)
AVERAGE WIND SPEED              10.3
HIGHEST WIND SPEED/DIRECTION    40/030    DATE  02/01
HIGHEST GUST SPEED/DIRECTION    54/030    DATE  02/01

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.63
NUMBER OF DAYS FAIR           12
NUMBER OF DAYS PC             47
NUMBER OF DAYS CLOUDY         31

AVERAGE RH (PERCENT)     71

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               1
HEAVY RAIN                7     RAIN                      11
LIGHT RAIN               28     FREEZING RAIN              0
LT FREEZING RAIN          6     HAIL                       0
HEAVY SNOW                3     SNOW                       6
LIGHT SNOW               18     SLEET                     12
FOG                      44     FOG W/VIS <= 1/4 MILE      8
HAZE                      8

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

$$