National Weather Service Weather Forecast Office

• Home
• Site Map
• News
• Organization
• Search for: NWS All NOAA 

000
CXUS51 KOKX 011330
CLMISP

CLIMATE REPORT
NATIONAL WEATHER SERVICE NEW YORK, NY
923 AM EDT MON APR 01 2024

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

...THE ISLIP NY CLIMATE SUMMARY FOR THE MONTH OF MARCH 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 DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH             82   03/13/1990
 LOW               0   03/18/1967
                       03/19/1967
HIGHEST           73   03/15         MM      MM       63  03/26
LOWEST            24   03/22         MM      MM       24  03/01
AVG. MAXIMUM    53.9               47.7     6.2     50.1
AVG. MINIMUM    37.5               32.0     5.5     33.4
MEAN            45.7               39.9     5.8     41.8
DAYS MAX >= 90     0                0.0     0.0        0
DAYS MAX <= 32     0                1.1    -1.1        0
DAYS MIN <= 32     4               16.9   -12.9       13
DAYS MIN <= 0      0                0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        9.41   2010
 MINIMUM        0.99   2012
TOTALS          9.54               4.51    5.03     3.83
DAILY AVG.      0.31               0.15    0.16     0.12
DAYS >= .01       13               10.8     2.2       14
DAYS >= .10        8                7.3     0.7        8
DAYS >= .50        5                2.9     2.1        3
DAYS >= 1.00       5                1.1     3.9        1
GREATEST
 24 HR. TOTAL   2.27   03/23 TO 03/23               1.56  03/13 TO 03/14
 STORM TOTAL    2.27                                1.20
 (MM/DD(HH))            MM

SNOWFALL (INCHES)
RECORDS
 TOTAL          31.9   2018
 24 HR TOTAL      MM
TOTALS           0.0                6.5    -6.5      1.6
 LIQUID EQUIV   0.00               0.60   -0.60     0.20
SINCE 7/1       10.9               31.2   -20.3       MM
 LIQUID 7/1     1.09               3.10   -2.01       MM
DAYS >= TRACE      0                2.7    -2.7        5
DAYS >= 1.0        0                1.7    -1.7        1
GREATEST
 SNOW DEPTH        0                                   1  03/01
 24 HR TOTAL      MM                                  MM
 STORM TOTAL     0.0                                 1.2
 (MM/DD(HH))            MM

DEGREE DAYS
HEATING TOTAL    591                780    -189      713
 SINCE 7/1      3930               4499    -569       MM
COOLING TOTAL      0                  0       0        0
 SINCE 1/1         0                  0       0       MM
................................................................

WIND (MPH)
AVERAGE WIND SPEED              11.6
HIGHEST WIND SPEED/DIRECTION    37/290    DATE  03/11
HIGHEST GUST SPEED/DIRECTION    51/280    DATE  03/11

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.64
NUMBER OF DAYS FAIR            4
NUMBER OF DAYS PC             15
NUMBER OF DAYS CLOUDY         12

AVERAGE RH (PERCENT)     67

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                6     RAIN                       8
LIGHT RAIN               17     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                      16     FOG W/VIS <= 1/4 MILE      2
HAZE                      2

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

$$