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000
CXUS51 KOKX 011804
CLMISP

CLIMATE REPORT
NATIONAL WEATHER SERVICE NEW YORK, NY
203 PM EDT SUN OCT 01 2023

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

...THE ISLIP NY CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 2023...

CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1963 TO 2023

WEATHER         OBSERVED          NORMAL  DEPART   LAST YEAR`S
                VALUE   DATE(S)   VALUE   FROM     VALUE DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH             94   09/03/1973
 LOW              38   09/22/1997
                       09/28/1989
                       09/20/1979
HIGHEST           92   09/06         MM      MM       88  09/01
                       09/07
LOWEST            50   09/17         MM      MM       45  09/24
AVG. MAXIMUM    75.5               74.8     0.7     76.9
AVG. MINIMUM    61.6               58.9     2.7     59.5
MEAN            68.6               66.9     1.7     68.2
DAYS MAX >= 90     4                0.2     3.8        0
DAYS MAX <= 32     0                0.0     0.0        0
DAYS MIN <= 32     0                0.0     0.0        0
DAYS MIN <= 0      0                0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        7.50   1966
 MINIMUM        0.61   2019
TOTALS          6.78               3.60    3.18     2.89
DAILY AVG.      0.23               0.12    0.11     0.10
DAYS >= .01       10                8.6     1.4        7
DAYS >= .10        9                5.5     3.5        5
DAYS >= .50        4                2.6     1.4        4
DAYS >= 1.00       3                1.0     2.0        0
GREATEST
 24 HR. TOTAL   2.18   09/28 TO 09/29               0.71  09/22 TO 09/22
 STORM TOTAL    2.18                                0.71
 (MM/DD(HH))            MM

SNOWFALL (INCHES)
RECORDS
 TOTAL           0.0   0
 24 HR TOTAL     0.0   MM
TOTALS           0.0                0.0     0.0      0.0
 LIQUID EQUIV   0.00               0.00    0.00     0.00
SINCE 7/1        0.0                0.0     0.0       MM
 LIQUID 7/1     0.00               0.00    0.00       MM
DAYS >= TRACE      0                0.0     0.0        0
DAYS >= 1.0        0                0.0     0.0        0
GREATEST
 SNOW DEPTH        0                                   0  MM
 24 HR TOTAL      MM                                  MM
 STORM TOTAL     0.0                                 0.0
 (MM/DD(HH))            MM

DEGREE DAYS
HEATING TOTAL     44                 53      -9       35
 SINCE 7/1        44                 56     -12       MM
COOLING TOTAL    158                108      50      140
 SINCE 1/1       936                872      64       MM
................................................................

WIND (MPH)
AVERAGE WIND SPEED              8.5
HIGHEST WIND SPEED/DIRECTION    28/060    DATE  09/25
HIGHEST GUST SPEED/DIRECTION    40/060    DATE  09/25

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.59
NUMBER OF DAYS FAIR            8
NUMBER OF DAYS PC             11
NUMBER OF DAYS CLOUDY         11

AVERAGE RH (PERCENT)     78

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              3     MIXED PRECIP               0
HEAVY RAIN                5     RAIN                       6
LIGHT RAIN               12     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                      13     FOG W/VIS <= 1/4 MILE      0
HAZE                      3

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

$$