Climatological Report (Monthly)
Issued by NWS Portland, ME

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CLIMATE REPORT
NATIONAL WEATHER SERVICE GRAY ME
1104 AM EDT TUE AUG 4 2015

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

...THE PORTLAND ME CLIMATE SUMMARY FOR THE MONTH OF JULY 2015...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1941 TO 2015 /FOR TEMPERATURES/
CLIMATE RECORD PERIOD 1871 TO 2015 /FOR PRECIPITATION/
CLIMATE RECORD PERIOD 1882 TO 2015 /FOR SNOWFALL/


WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE  DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH             100   07/22/2011
 LOW               40   07/07/1965
                        07/03/1962
HIGHEST            90   07/12        91      -1       87  07/23
LOWEST             51   07/17        50       1       54  07/21
AVG. MAXIMUM     78.5              78.8    -0.3     78.4
AVG. MINIMUM     59.6              59.4     0.2     61.3
MEAN             69.1              69.1     0.0     69.8
DAYS MAX >= 90      1               1.5    -0.5        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        10.84   1915
 MINIMUM         0.61   1965
TOTALS           1.26              3.61   -2.35     6.12
DAILY AVG.       0.04              0.12   -0.08     0.20
DAYS >= .01        10              11.0    -1.0       15
DAYS >= .10         4               6.8    -2.8       10
DAYS >= .50         1               2.6    -1.6        5
DAYS >= 1.00        0               0.8    -0.8        1
GREATEST
 24 HR. TOTAL    0.62   07/19

SNOWFALL (INCHES)
RECORDS
 TOTAL            0.0
TOTALS            0.0               0.0     0.0      0.0
SINCE 7/1         0.0               0.0     0.0
SNOWDEPTH AVG.      0
DAYS >= TRACE       0               0.0     0.0
DAYS >= 1.0         0               0.0     0.0
GREATEST
 SNOW DEPTH         0
 24 HR TOTAL      0.0

DEGREE_DAYS
HEATING TOTAL      10                17      -7        0
 SINCE 7/1         10                17      -7        0
COOLING TOTAL     143               144      -1      159
 SINCE 1/1        226               208      18      215
.................................................................

WIND (MPH)
AVERAGE WIND SPEED              5.8
HIGHEST WIND SPEED/DIRECTION    23/100    DATE  07/29
HIGHEST GUST SPEED/DIRECTION    29/250    DATE  07/02

SKY COVER
AVERAGE SKY COVER           0.50

AVERAGE RH (PERCENT)     76

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              9     HEAVY RAIN                 1
RAIN                      2     LIGHT RAIN                15
FREEZING RAIN             0     LT FREEZING RAIN           0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     FOG                       17
FOG W/VIS <= 1/4 MILE     7     HAZE                       3

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

&&

THE WEATHER PATTERN FOR MUCH OF JULY CONSISTED OF ALTERNATING
PERIODS OF WARM, HUMID WEATHER AND COOLER, DRIER WEATHER. THE COLD
FRONTS WHICH BROUGHT THE CHANGE IN AIR MASSES WERE OFTEN ACCOMPANIED
BY THUNDERSTORMS, INCLUDING 9 DAYS WHICH RECORDED A THUNDERSTORM IN
PORTLAND. IN SPITE OF THE MANY DAYS WITH THUNDERSTORMS,
PRECIPITATION FOR THE MONTH WAS WELL BELOW NORMAL. THE WARMEST
TEMPERATURE WAS 90 DEGREES ON THE 12TH, THOUGH THERE WERE ALSO DAYS
WHICH DID NOT RISE OUT OF THE 60S.

THE AVERAGE TEMPERATURE WAS 69.1 WHICH IS THE NORMAL VALUE FOR JULY.
ALTHOUGH IT WAS NORMAL, IT WAS ALSO THE COOLEST SINCE 2009. THE
COOLEST JULY WAS 1962 WHEN THE AVERAGE TEMPERATURE WAS 64.0 DEGREES.
THE WARMEST WAS 72.7 DEGREES IN 2011.

A TOTAL OF 1.26 INCHES OF RAIN FELL WHICH WAS 2.35 INCHES BELOW
NORMAL AND THE 11TH DRIEST IN THE 145-YEAR HISTORY OF RECORDS AT
PORTLAND. THE HEAVIEST RAIN FELL IN A THUNDERSTORM ON THE 19TH WHEN
0.62 INCHES WAS MEASURED. THERE WERE ONLY 4 DAYS WHICH MEASURED 0.10
INCHES OR MORE, THE FEWEST IN THE MONTH OF JULY SINCE 1982. THE
DRIEST JULY ON RECORD WAS 1965 WHEN ONLY 0.61 INCHES WAS RECORDED.
THE WETTEST WAS 1915 WITH 10.84 INCHES.

$$

KIMBLE



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