Climatological Report (Seasonal)
Issued by NWS Portland, ME

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CLIMATE REPORT
NATIONAL WEATHER SERVICE GRAY ME
817 PM EDT WED SEP 2 2015

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

...THE PORTLAND ME CLIMATE SUMMARY FOR THE SUMMER SEASON, FROM
6/1/2015 TO 8/31/2015...

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             103   08/02/1975
 LOW               33   08/31/1965
                        06/04/1944
HIGHEST            90   07/12        93      -3       88  08/27
LOWEST             43   06/07        42       1       45  06/01
                        06/05
AVG. MAXIMUM     75.9              76.6    -0.7     76.3
AVG. MINIMUM     58.0              57.1     0.9     57.5
MEAN             66.9              66.9     0.0     66.9
DAYS MAX >= 90      1               3.9    -2.9        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        22.31   2009
 MINIMUM         4.10   1999
TOTALS          10.15             10.54   -0.39    18.98
DAILY AVG.       0.11              0.11    0.00     0.21
DAYS >= .01        32              32.1    -0.1       29
DAYS >= .10        19              18.7     0.3       20
DAYS >= .50         8               6.4     1.6       11
DAYS >= 1.00        4               2.4     1.6        4
GREATEST
 24 HR. TOTAL    1.60   05/31 TO 06/01

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

DEGREE_DAYS
HEATING TOTAL     154               151       3      101
 SINCE 7/1         10                45     -35       24
COOLING TOTAL     355               321      34      298
 SINCE 1/1        395               328      67      298
.................................................................

WIND (MPH)
AVERAGE WIND SPEED              6.2
HIGHEST WIND SPEED/DIRECTION    35/320    DATE  08/04
HIGHEST GUST SPEED/DIRECTION    43/010    DATE  08/15

SKY COVER
AVERAGE SKY COVER           0.50

AVERAGE RH (PERCENT)     76

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM             19     HEAVY RAIN                 8
RAIN                     11     LIGHT RAIN                38
FREEZING RAIN             0     LT FREEZING RAIN           0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     FOG                       50
FOG W/VIS <= 1/4 MILE    15     HAZE                       7

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

&&

AFTER A WARM END TO THE SPRING SEASON, A HEAVY RAINSTORM USHERED IN
A CHANGE IN THE WEATHER PATTERN AT THE START OF THE SUMMER. AFTER
2.80 INCHES OF RAIN FELL FROM MAY 31 THROUGH JUNE 2, PORTLAND SAW A
TURN TOWARD COOLER WEATHER THAT LASTED THROUGH MOST OF JUNE AND INTO
JULY. IN FACT THE HIGH TEMPERATURE OF 50 DEGREES ON JUNE 2 WAS THE
COLDEST JUNE HIGH TEMPERATURE IN NEARLY 60 YEARS. THERE WERE PERIODS
OF WARMER WEATHER INCLUDING THE ONLY DAY TO HIT 90 DEGREES THIS
SUMMER ON JULY 12. MORE PERSISTENT WARMTH ARRIVED TOWARD THE
END OF JULY AND LASTED THROUGH MUCH OF AUGUST, WITH AUGUST FINISHING
AS THE 7TH WARMEST ON RECORD.

THE AVERAGE TEMPERATURE FOR THE SUMMER WAS 66.9 DEGREES WHICH IS THE
NORMAL VALUE FOR THE SEASON. THIS MARKS THE SECOND STRAIGHT YEAR
THAT PORTLAND`S AVERAGE SUMMER TEMPERATURE WAS PRECISELY THE NORMAL
VALUE OF 66.9 DEGREES. THE WARMEST SUMMER WAS 1988 WHEN THE AVERAGE
TEMPERATURE WAS 68.7 DEGREES. THE COOLEST WAS ONLY 63.7 DEGREES AND
OCCURRED IN THREE YEARS: 1964, 1962, AND 1954.

A TOTAL OF 10.15 INCHES OF PRECIPITATION FELL WHICH WAS 0.39 INCHES
BELOW NORMAL AND THE DRIEST SUMMER SINCE 2003. THIS MARKED THE 12TH
STRAIGHT YEAR THAT PORTLAND SAW AT LEAST 10 INCHES OF RAIN DURING
THE SUMMER MONTHS. THE HEAVIEST RAIN FELL RIGHT AT THE BEGINNING OF
THE SUMMER WHEN 1.85 INCHES FELL ON JUNE 1ST AND 2ND (2.80 INCHES
INCLUDING MAY 31ST). THE WETTEST SUMMER ON RECORD WAS 2009 WHEN
22.31 INCHES OF RAIN FELL. THE DRIEST WAS 1999 WITH ONLY 4.10 INCHES.

THE FOLLOWING DAILY RECORDS WERE SET OR TIED IN SUMMER 2015...
DATE    RECORD                               PREVIOUS
JUN 2   50   - COOLEST HIGH TEMPERATURE      54 IN 2001
JUN 28  1.58 - GREATEST PRECIPITATION        1.18 IN 1968
AUG 11  3    - SMALLEST TEMPERATURE RANGE    4 IN 1943
AUG 20  67   - WARMEST LOW TEMPERATURE       66 IN 2004
AUG 23  5    - SMALLEST TEMPERATURE RANGE    6 IN 1970
AUG 24  66   - WARMEST LOW TEMPERATURE       66 IN 2009 /TIED/

$$

KIMBLE



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