Climatological Report (Monthly)
Issued by NWS Upton, NY

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000
CXUS51 KOKX 011154
CLMISP

CLIMATE REPORT
NATIONAL WEATHER SERVICE NEW YORK NY
649 AM EST FRI DEC 1 2017


...THE ISLIP NY CLIMATE SUMMARY FOR THE MONTH OF NOVEMBER 2017...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1963 TO 2017

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE  DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH              78   11/03/1990
 LOW               11   11/24/1989
HIGHEST            73   11/02        MM      MM       73  11/03
LOWEST             25   11/18        MM      MM       27  11/28
                        11/11
AVG. MAXIMUM     54.4              53.2     1.2     57.2
AVG. MINIMUM     36.4              37.1    -0.7     38.1
MEAN             45.4              45.1     0.3     47.7
DAYS MAX >= 90      0               0.0     0.0        0
DAYS MAX <= 32      0               0.1    -0.1        0
DAYS MIN <= 32     10               9.2     0.8        3
DAYS MIN <= 0       0               0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         8.02   1988
 MINIMUM         0.63   2001
TOTALS           2.31              3.67   -1.36     3.06
DAILY AVG.       0.08              0.12   -0.04     0.10
DAYS >= .01         7              10.3    -3.3        7
DAYS >= .10         5               6.2    -1.2        4
DAYS >= .50         2               2.6    -0.6        2
DAYS >= 1.00        0               1.0    -1.0        1
GREATEST
 24 HR. TOTAL    0.80   11/22 TO 11/22           11/28 TO 11/29
                                                          11/29 TO 11/29
                                                          11/29 TO 11/30
 STORM TOTAL       MM                                 MM
 (MM/DD(HH))            MM                    11/29(00) TO 11/29(00)
                                                 11/29(00) TO 11/29(00)0
                                                 11/30(00) TO 11/30(00)0

SNOWFALL (INCHES)
RECORDS
 TOTAL             MM   5
 24 HR TOTAL       MM
TOTALS              T               0.5    -0.5        T
 LIQUID EQUIV      MM              0.10      MM       MM
SINCE 7/1           T               0.5    -0.5        T
 LIQUID 7/1        MM              0.10      MM       MM
DAYS >= TRACE       1               0.2     0.8        2
DAYS >= 1.0         0               0.1    -0.1        0
GREATEST
 SNOW DEPTH         0   MM                             0  MM
 24 HR TOTAL        T   11/20 TO 11/20           11/21 TO 11/21
                                                          11/29 TO 11/29
                                                          11/30 TO 11/30
 STORM TOTAL       MM                                 MM
 (MM/DD(HH))            MM                    11/21(00) TO 11/21(00)
                                                 11/29(00) TO 11/29(00)0
                                                 11/30(00) TO 11/30(00)0

DEGREE_DAYS
HEATING TOTAL     582               596     -14      514
 SINCE 7/1        751              1016    -265      791
COOLING TOTAL       2                 0       2        0
 SINCE 1/1        972               787     185     1124
.................................................

WIND (MPH)
AVERAGE WIND SPEED              9.3
HIGHEST WIND SPEED/DIRECTION    35/310    DATE  11/19
HIGHEST GUST SPEED/DIRECTION    45/310    DATE  11/19

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.60
NUMBER OF DAYS FAIR            6
NUMBER OF DAYS PC             17
NUMBER OF DAYS CLOUDY          7

AVERAGE RH (PERCENT)     69

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

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

$$



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