Climatological Report (Seasonal)
Issued by NWS Upton, NY

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685
CXUS51 KOKX 021128
CLSISP

NYCCLSISP 000
TTAA00 OKX 011945

CLIMATE REPORT
NATIONAL WEATHER SERVICE NEW YORK, NY
628 AM EST MON DEC 02 2024

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

...THE ISLIP NY CLIMATE SUMMARY FOR THE SEASON, FROM
9/1/2024 TO 11/30/2024...

CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1963 TO 2024

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           84   09/14         MM      MM
                       09/19
LOWEST            27   11/30         MM      MM
AVG. MAXIMUM    67.6               64.2     3.4
AVG. MINIMUM    48.7               47.9     0.8
MEAN            58.2               56.1     2.1
DAYS MAX >= 90     0                0.2    -0.2
DAYS MAX <= 32     0                0.2    -0.2
DAYS MIN <= 32     4               10.1    -6.1
DAYS MIN <= 0      0                0.0     0.0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM       19.26   2018
 MINIMUM        3.31   1965
TOTALS          3.70              10.98   -7.28    11.10
DAILY AVG.      0.04               0.12   -0.08
DAYS >= .01       15               27.4   -12.4
DAYS >= .10        6               17.1   -11.1
DAYS >= .50        1                7.8    -6.8
DAYS >= 1.00       1                3.0    -2.0
GREATEST
 24 HR. TOTAL   2.26   11/21 TO 11/21
 STORM TOTAL    2.26
 (MM/DD(HH))

SNOWFALL (INCHES)
RECORDS
 TOTAL           7.6   1989
 24 HR TOTAL     7.6   11/23/2008 TO 11/23/1989
TOTALS           0.0                0.5    -0.5
 LIQUID EQUIV   0.00               0.00    0.00
SINCE 7/1        0.0                0.5    -0.5
 LIQUID 7/1     0.00
DAYS >= TRACE      0                0.3    -0.3
DAYS >= 1.0        0                0.2    -0.2
GREATEST
 SNOW DEPTH        0
 24 HR TOTAL     0.0
 STORM TOTAL     0.0
 (MM/DD(HH))

DEGREE DAYS
HEATING TOTAL    689                936    -247
 SINCE 7/1       690                939    -249
COOLING TOTAL     91                121     -30
 SINCE 1/1      1012                885     127
..............................................................

WIND (MPH)
AVERAGE WIND SPEED              8.4
HIGHEST WIND SPEED/DIRECTION    31/MM     DATE  11/12
HIGHEST GUST SPEED/DIRECTION    47/320    DATE  11/23

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.45
NUMBER OF DAYS FAIR           39
NUMBER OF DAYS PC             39
NUMBER OF DAYS CLOUDY         13

AVERAGE RH (PERCENT)     66

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              1     MIXED PRECIP               0
HEAVY RAIN                1     RAIN                       5
LIGHT RAIN               18     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                      23     FOG W/VIS <= 1/4 MILE      3
HAZE                      2

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

$$