Climatological Report (Monthly)
Issued by NWS Upton, NY

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CXUS51 KOKX 011517
CLMISP

CLIMATE REPORT
NATIONAL WEATHER SERVICE NEW YORK NY
1110 AM EDT FRI JUN 1 2018

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

...THE ISLIP NY CLIMATE SUMMARY FOR THE MONTH OF MAY 2018...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1963 TO 2018

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE  DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH              98   05/20/1996
 LOW               32   05/01/2008
HIGHEST            84   05/26        MM      MM       89  05/19
                        05/02                             05/18
LOWEST             41   05/01        MM      MM       39  05/04
AVG. MAXIMUM     71.5              67.5     4.0     66.9
AVG. MINIMUM     53.7              49.8     3.9     50.5
MEAN             62.6              58.6     4.0     58.7
DAYS MAX >= 90      0               0.3    -0.3        0
DAYS MAX <= 32      0               0.0     0.0        0
DAYS MIN <= 32      0               0.0     0.0        0
DAYS MIN <= 0       0               0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        10.14   1989
 MINIMUM         0.42   2015
TOTALS           3.70              3.78   -0.08     4.16
DAILY AVG.       0.12              0.12    0.00     0.13
DAYS >= .01        15              11.1     3.9       12
DAYS >= .10         8               6.7     1.3        9
DAYS >= .50         2               2.5    -0.5        3
DAYS >= 1.00        1               1.0     0.0        1
GREATEST
 24 HR. TOTAL    1.18   05/19 TO 05/19           05/13 TO 05/13
                                                          05/31 TO 05/31EATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                                                          05/31 TO 05/31EATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
 STORM TOTAL       MM                                 MM
 (MM/DD(HH))            MM                    05/13(00) TO 05/13(00)
                                                 05/31(00) TO 05/31(00)1EATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                                                 05/31(00) TO 05/31(00)1EATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S

SNOWFALL (INCHES)
RECORDS
 TOTAL              T   1991
                        0
                        0
 24 HR TOTAL       MM
TOTALS            0.0               0.0     0.0      0.0
 LIQUID EQUIV    0.00              0.00    0.00     0.00
SINCE 7/1        65.9              24.8    41.1     39.3
 LIQUID 7/1      6.59              2.50    4.09     3.93
DAYS >= TRACE       0               0.0     0.0        0
DAYS >= 1.0         0               0.0     0.0        0
GREATEST
 SNOW DEPTH         0   MM                             0  MM
 24 HR TOTAL      0.0   05/31 TO 05/31           05/31 TO 05/31
                                                          05/31 TO 05/31EATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                                                          05/31 TO 05/31EATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
 STORM TOTAL       MM                                 MM
 (MM/DD(HH))            MM                    05/31(00) TO 05/31(00)
                                                 05/31(00) TO 05/31(00)1EATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                                                 05/31(00) TO 05/31(00)1EATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S

DEGREE_DAYS
HEATING TOTAL     115               219    -104      217
 SINCE 7/1       5010              5390    -380     4727
COOLING TOTAL      48                22      26       28
 SINCE 1/1         48                24      24       39
.................................................................

WIND (MPH)
AVERAGE WIND SPEED              8.1
HIGHEST WIND SPEED/DIRECTION    31/320    DATE  05/15
HIGHEST GUST SPEED/DIRECTION    39/320    DATE  05/15

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.70
NUMBER OF DAYS FAIR            2
NUMBER OF DAYS PC             12
NUMBER OF DAYS CLOUDY         17

AVERAGE RH (PERCENT)     74

WEATHER CONDITIONS. NUMBER OF DAYS WITH
  0
  5
  0
  0
  0
  0
  6
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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