Climatological Report (Seasonal)
Issued by NWS Upton, NY

Home | Current Version | Previous Version | Text Only | Print | Product List | Glossary On
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25
000
CXUS51 KOKX 021231
CLSISP

NYCCLSISP 000
TTAA00 OKX 021229

CLIMATE REPORT
NATIONAL WEATHER SERVICE NEW YORK, NY
720 AM EST SAT MAR 02 2024

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

...THE ISLIP NY CLIMATE SUMMARY FOR THE SEASON, FROM
12/1/2023 TO 2/29/2024...

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             77   12/07/1998
 LOW             -14   02/13/1967
HIGHEST           61   12/18         MM      MM
LOWEST            17   01/20         MM      MM
                       01/21
                       01/22
AVG. MAXIMUM    44.5               41.5     3.0
AVG. MINIMUM    31.1               26.7     4.4
MEAN            37.8               34.1     3.7
DAYS MAX >= 90     0                0.0     0.0
DAYS MAX <= 32     6               15.1    -9.1
DAYS MIN <= 32    51               68.0   -17.0
DAYS MIN <= 0      0                0.1    -0.1

PRECIPITATION (INCHES)
RECORD
 MAXIMUM       22.25   1979
 MINIMUM        5.38   2002
TOTALS         18.28              11.66    6.62    11.01
DAILY AVG.      0.20                NAN     NAN
DAYS >= .01       32               32.8    -0.8
DAYS >= .10       24               20.5     3.5
DAYS >= .50       11                8.2     2.8
DAYS >= 1.00       6                2.9     3.1
GREATEST
 24 HR. TOTAL   3.07   12/27 TO 12/28
 STORM TOTAL    3.04
 (MM/DD(HH))

SNOWFALL (INCHES)
RECORDS
 TOTAL          57.8   2014
 24 HR TOTAL     2.7   MM
TOTALS          10.9               24.2   -13.3
 LIQUID EQUIV   1.10               2.40   -1.30
SINCE 7/1       10.9               24.7   -13.8
 LIQUID 7/1     1.09
DAYS >= TRACE     18               10.1     7.9
DAYS >= 1.0        3                5.8    -2.8
GREATEST
 SNOW DEPTH        3   02/15
                       02/17
                       02/18
 24 HR TOTAL      MM
 STORM TOTAL     4.3
 (MM/DD(HH))

DEGREE DAYS
HEATING TOTAL   2450               2780    -330
 SINCE 7/1      3339               3777    -438
COOLING TOTAL      0                  0       0
 SINCE 1/1         0                  0       0
..............................................................

WIND (MPH)
AVERAGE WIND SPEED              9.3
HIGHEST WIND SPEED/DIRECTION    39/150    DATE  01/09
HIGHEST GUST SPEED/DIRECTION    57/170    DATE  01/10

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.61
NUMBER OF DAYS FAIR           25
NUMBER OF DAYS PC             29
NUMBER OF DAYS CLOUDY         37

AVERAGE RH (PERCENT)     71

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                7     RAIN                      17
LIGHT RAIN               36     FREEZING RAIN              0
LT FREEZING RAIN          1     HAIL                       1
HEAVY SNOW                1     SNOW                       2
LIGHT SNOW               16     SLEET                      4
FOG                      43     FOG W/VIS <= 1/4 MILE     13
HAZE                      3

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

$$


USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.