Climatological Report (Monthly)
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
000
CXUS51 KOKX 020200 RRA
CLMISP

NYCCLMISP 000
TTAA00 KOKX 011552


CLIMATE REPORT...CORRECTED
NATIONAL WEATHER SERVICE NEW YORK NY
900 PM EST MON JAN 1 2018

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

...THE ISLIP NY CLIMATE SUMMARY FOR THE MONTH OF DECEMBER 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              77   12/07/1998
 LOW               -1   12/31/1963
HIGHEST            60   12/05        MM      MM       62  12/27
LOWEST              9   12/31        MM      MM       17  12/16
AVG. MAXIMUM     40.5              43.0    -2.5     44.8
AVG. MINIMUM     27.0              28.2    -1.2     28.4
MEAN             33.8              35.6    -1.8     36.6
DAYS MAX >= 90      0               0.0     0.0        0
DAYS MAX <= 32      9               4.0     5.0        1
DAYS MIN <= 32     23              21.2     1.8       22
DAYS MIN <= 0       0               0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         8.91   1996
 MINIMUM         0.90   1985
TOTALS           2.12              4.06   -1.94     3.53
DAILY AVG.       0.07              0.13   -0.06     0.11
DAYS >= .01        11              10.8     0.2       10
DAYS >= .10         6               7.0    -1.0        7
DAYS >= .50         1               2.7    -1.7        4
DAYS >= 1.00        0               1.0    -1.0        0
GREATEST
 24 HR. TOTAL    0.68   12/23 TO 12/23           12/11 TO 12/12
                                                          12/17 TO 12/17
                                                          12/17 TO 12/17
 STORM TOTAL       MM                                 MM
 (MM/DD(HH))            MM                    12/12(00) TO 12/12(00)
                                                 12/17(00) TO 12/17(00)7
                                                 12/17(00) TO 12/17(00)7

SNOWFALL (INCHES)
RECORDS
 TOTAL           25.3   2009
                        0
                        0
 24 HR TOTAL       MM
TOTALS            6.0               5.4     0.6      3.2
 LIQUID EQUIV    0.60              0.50    0.10     0.32
SINCE 7/1         6.0               5.9     0.1      3.2
 LIQUID 7/1      0.60              0.60    0.00     0.32
DAYS >= TRACE       9               2.4     6.6        3
DAYS >= 1.0         4               1.6     2.4        1
GREATEST
 SNOW DEPTH         2   12/16                          2  12/17
 24 HR TOTAL      1.8   12/14 TO 12/14           12/17 TO 12/17
                                                          12/17 TO 12/17
                                                          12/17 TO 12/17
 STORM TOTAL       MM                                 MM
 (MM/DD(HH))            MM                    12/17(00) TO 12/17(00)
                                                 12/17(00) TO 12/17(00)7
                                                 12/17(00) TO 12/17(00)7

DEGREE_DAYS
HEATING TOTAL     959               911      48      873
 SINCE 7/1       1710              1927    -217     1664
COOLING TOTAL       0                 0       0        0
 SINCE 1/1        972               787     185     1124
........................................................

WIND (MPH)
AVERAGE WIND SPEED              9.1
HIGHEST WIND SPEED/DIRECTION    37/290    DATE  12/25
HIGHEST GUST SPEED/DIRECTION    46/310    DATE  12/25

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.60
NUMBER OF DAYS FAIR            4
NUMBER OF DAYS PC             13
NUMBER OF DAYS CLOUDY         14

AVERAGE RH (PERCENT)     66

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                0     RAIN                       3
LIGHT RAIN                9     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       1
LIGHT SNOW                9     SLEET                      0
FOG                      14     FOG W/VIS <= 1/4 MILE      1
HAZE                      0

-  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.