Climatological Report (Annual)
Issued by NWS Upton, NY

000
CXUS51 KOKX 012026 RRA
CLAISP

CLIMATE REPORT
NATIONAL WEATHER SERVICE NEW YORK, NY
326 PM EST SAT JAN 01 2022

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

...THE ISLIP NY CLIMATE SUMMARY FOR THE YEAR OF 2021...

CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1963 TO 2021

WEATHER         OBSERVED          NORMAL  DEPART   LAST YEAR`S
                VALUE   DATE(S)   VALUE   FROM     VALUE DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH            104   07/03/1966
 LOW             -14   02/13/1967
HIGHEST           94   08/27         MM      MM       95  07/27
                                                          07/28
LOWEST            13   02/08         MM      MM       13  02/15
                       02/09
AVG. MAXIMUM    62.7               61.1     1.6     63.0
AVG. MINIMUM    46.7               45.2     1.5     46.8
MEAN            54.7               53.1     1.6     54.9
DAYS MAX >= 90    10                8.0     2.0        8
DAYS MAX <= 32    11               16.0    -5.0        5
DAYS MIN <= 32    93               98.3    -5.3       73
DAYS MIN <= 0      0                0.1    -0.1        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM       65.32   1989
 MINIMUM          MM   MM
TOTALS         46.40              45.99    0.41    43.46
DAILY AVG.      0.13               0.13    0.00     0.12
DAYS >= .01      127              122.0     5.0      129
DAYS >= .10       76               75.7     0.3       79
DAYS >= .50       31               30.6     0.4       28
DAYS >= 1.00      14               11.5     2.5        8
GREATEST
 24 HR. TOTAL   4.57                                2.75  09/10 TO 09/10
 STORM TOTAL    4.47                                  MM
 (MM/DD(HH))            MM

SNOWFALL (INCHES)
RECORDS
 TOTAL          71.0   1978
 24 HR TOTAL    23.4   MM
 SNOW DEPTH       26   02/09/1978
                       02/08/1978
TOTALS          26.3               31.8    -5.5     10.0
 LIQUID EQUIV   2.60               3.10   -0.50     1.00
SINCE 7/1        0.3                5.0    -4.7       MM
 LIQUID 7/1     0.03               0.50   -0.47       MM
SNOWDEPTH AVG.     0                                   0
DAYS >= TRACE     29               13.0    16.0       15
DAYS >= 1.0        5                8.0    -3.0        3
GREATEST
 SNOW DEPTH       11   02/02                           5  12/18
                       02/08
 24 HR TOTAL    10.3                                 7.4  12/16 TO 12/17
 STORM TOTAL    10.3                                 7.4
 (MM/DD(HH))            MM

DEGREE DAYS
HEATING TOTAL   4663               5183    -520     4644
 SINCE 7/1      1454               1803    -349       MM
COOLING TOTAL   1046                885     161     1059
 SINCE 1/1      1046                885     161       MM
................................................................

WIND (MPH)
AVERAGE WIND SPEED              9.0
RESULTANT WIND SPEED/DIRECTION   2/290
HIGHEST WIND SPEED/DIRECTION    40/030    DATE  02/01
HIGHEST GUST SPEED/DIRECTION    55/270    DATE  12/06

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.59
NUMBER OF DAYS FAIR           82
NUMBER OF DAYS PC            162
NUMBER OF DAYS CLOUDY        121

AVERAGE RH (PERCENT)     71

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM             26     MIXED PRECIP               1
HEAVY RAIN               35     RAIN                      53
LIGHT RAIN              151     FREEZING RAIN              0
LT FREEZING RAIN          6     HAIL                       0
HEAVY SNOW                2     SNOW                       4
LIGHT SNOW               23     SLEET                     12
FOG                     153     FOG W/VIS <= 1/4 MILE     25
HAZE                     18

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

$$