Climatological Report (Seasonal)
Issued by NWS Upton, NY

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000
CXUS51 KOKX 020023
CLSISP

CLIMATE REPORT
NATIONAL WEATHER SERVICE NEW YORK, NY
714 PM EST WED DEC 01 2021

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

...THE ISLIP NY CLIMATE SUMMARY FOR THE SEASON, FROM
9/1/2021 TO 11/30/2021...

CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1963 TO 2021

WEATHER         OBSERVED          NORMAL  DEPART   LAST YEAR`S
                VALUE   DATE(S)   VALUE   FROM     VALUE
                                          NORMAL
..............................................................
TEMPERATURE (F)
RECORD
 HIGH             94   09/03/1973
 LOW              11   11/24/1989
HIGHEST           85   09/13         MM      MM
LOWEST            24   11/30         MM      MM
AVG. MAXIMUM    66.8               64.2     2.6
AVG. MINIMUM    50.1               47.9     2.2
MEAN            58.5               56.1     2.4
DAYS MAX >= 90     0                0.0     0.0
DAYS MAX <= 32     0                0.0     0.0
DAYS MIN <= 32    12               10.1     1.9
DAYS MIN <= 0      0                0.0     0.0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM       19.26   2018
 MINIMUM        3.31   1965
TOTALS         12.74              10.98    1.76       MM
DAILY AVG.      0.14               0.12    0.02
DAYS >= .01       28               27.4     0.6
DAYS >= .10       15               17.1    -2.1
DAYS >= .50        7                7.8    -0.8
DAYS >= 1.00       4                3.0     1.0
GREATEST
 24 HR. TOTAL   4.57   10/26 TO 10/26
 STORM TOTAL    4.47
 (MM/DD(HH))

SNOWFALL (INCHES)
RECORDS
 TOTAL           7.6   1989
 24 HR TOTAL     7.6   11/23/2008 TO 11/23/1989
TOTALS             T                0.5    -0.5
 LIQUID EQUIV      T               0.00    0.00
SINCE 7/1          T                0.5    -0.5
 LIQUID 7/1    -0.10
DAYS >= TRACE      2                0.0     2.0
DAYS >= 1.0        0                0.0     0.0
GREATEST
 SNOW DEPTH        0
 24 HR TOTAL      MM
 STORM TOTAL     0.0
 (MM/DD(HH))

DEGREE DAYS
HEATING TOTAL    736                936    -200
 SINCE 7/1       739                939    -200
COOLING TOTAL    168                121      47
 SINCE 1/1      1046                885     161
..............................................................

WIND (MPH)
AVERAGE WIND SPEED              8.5
HIGHEST WIND SPEED/DIRECTION    35/110    DATE  10/26
HIGHEST GUST SPEED/DIRECTION    49/280    DATE  11/13

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.55
NUMBER OF DAYS FAIR           25
NUMBER OF DAYS PC             40
NUMBER OF DAYS CLOUDY         26

AVERAGE RH (PERCENT)     73

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              9     MIXED PRECIP               0
HEAVY RAIN                9     RAIN                      10
LIGHT RAIN               39     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                2     SLEET                      0
FOG                      28     FOG W/VIS <= 1/4 MILE      3
HAZE                      3

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

$$


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