549
CXUS51 KOKX 021027 RRA
CLMISP

CLIMATE REPORT
NATIONAL WEATHER SERVICE NEW YORK, NY
627 AM EDT MON JUN 02 2025

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

...THE ISLIP NY CLIMATE SUMMARY FOR THE MONTH OF MAY 2025...

CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1963 TO 2025

WEATHER         OBSERVED          NORMAL  DEPART   LAST YEAR`S
                VALUE   DATE(S)   VALUE   FROM     VALUE DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH             98   05/20/1996
 LOW              32   05/01/2008
HIGHEST           78   05/11         MM      MM       84  05/24
LOWEST            46   05/23         MM      MM       42  05/13
AVG. MAXIMUM    69.1               68.3     0.8     68.8
AVG. MINIMUM    53.7               50.8     2.9     53.8
MEAN            61.4               59.5     1.9     61.3
DAYS MAX >= 90     0                0.3    -0.3        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       10.14   1989
 MINIMUM        0.42   2015
TOTALS          4.67               3.28    1.39     4.67
DAILY AVG.      0.15               0.11    0.04     0.15
DAYS >= .01       15               11.6     3.4       12
DAYS >= .10       12                6.6     5.4        9
DAYS >= .50        2                2.2    -0.2        3
DAYS >= 1.00       1                0.7     0.3        2
GREATEST
 24 HR. TOTAL   1.52   05/21 TO 05/22               1.37  05/15 TO 05/16
 STORM TOTAL    1.46                                1.35
 (MM/DD(HH))            MM

SNOWFALL (INCHES)
RECORDS
 TOTAL             T   2020
 24 HR TOTAL      MM
TOTALS           0.0                0.0     0.0      0.0
 LIQUID EQUIV   0.00               0.00    0.00     0.00
SINCE 7/1       11.7               31.8   -20.1       MM
 LIQUID 7/1     1.17               3.10   -1.93       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    113                196     -83      144
 SINCE 7/1      4568               5154    -586       MM
COOLING TOTAL     12                 27     -15       38
 SINCE 1/1        12                 29     -17       MM
................................................................

WIND (MPH)
AVERAGE WIND SPEED              9.5
HIGHEST WIND SPEED/DIRECTION    32/290    DATE  05/31
HIGHEST GUST SPEED/DIRECTION    47/290    DATE  05/31

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.70
NUMBER OF DAYS FAIR            3
NUMBER OF DAYS PC             13
NUMBER OF DAYS CLOUDY         15

AVERAGE RH (PERCENT)     73

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              2     MIXED PRECIP               0
HEAVY RAIN                4     RAIN                       8
LIGHT RAIN               19     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                      20     FOG W/VIS <= 1/4 MILE      7
HAZE                      4

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

$$