Climatological Report (Seasonal)
Issued by NWS Portland, ME

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CLIMATE REPORT
NATIONAL WEATHER SERVICE GRAY ME
443 PM EDT SAT SEP 3 2016

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

...THE PORTLAND ME CLIMATE SUMMARY FOR THE SUMMER SEASON, FROM
6/1/2016 TO 8/31/2016...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1940 TO 2016 /FOR TEMPERATURES/
CLIMATE RECORD PERIOD 1871 TO 2016 /FOR PRECIPITATION/
CLIMATE RECORD PERIOD 1882 TO 2016 /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            99   08/12        93       6       90  07/12
LOWEST             46   06/11        42       4       43  06/07
                                                          06/05
AVG. MAXIMUM     79.3              76.6     2.7     75.9
AVG. MINIMUM     58.5              57.1     1.4     58.0
MEAN             68.9              66.9     2.0     66.9
DAYS MAX >= 90      7               3.9     3.1        1
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           8.02             10.54   -2.52    10.15
DAILY AVG.       0.09              0.11   -0.02     0.11
DAYS >= .01        28              32.1    -4.1       32
DAYS >= .10        14              18.7    -4.7       19
DAYS >= .50         4               6.4    -2.4        8
DAYS >= 1.00        1               2.4    -1.4        4
GREATEST
 24 HR. TOTAL    2.44   06/05 TO 06/06

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      80               151     -71      154
 SINCE 7/1         14                45     -31       10
COOLING TOTAL     469               321     148      355
 SINCE 1/1        485               328     157      395
.................................................................

WIND (MPH)
AVERAGE WIND SPEED              7.1
HIGHEST WIND SPEED/DIRECTION    46/340    DATE  07/23
HIGHEST GUST SPEED/DIRECTION    52/340    DATE  07/23

SKY COVER
AVERAGE SKY COVER           0.50

AVERAGE RH (PERCENT)     69

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM             10     HEAVY RAIN                 6
RAIN                      7     LIGHT RAIN                34
FREEZING RAIN             0     LT FREEZING RAIN           0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     FOG                       42
FOG W/VIS <= 1/4 MILE     8     HAZE                       4

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

&&

THE SUMMER BEGAN WITH COOL AND WET WEATHER, BUT IN THE END SUMMER
2016 WENT DOWN AS THE WARMEST ON RECORD AND THE DRIEST IN MORE THAN
A DECADE. RAIN WAS OBSERVED ON 9 STRAIGHT DAYS FROM JUNE 3 THRU JUNE
11. THE HEAVIEST RAIN FELL ON THE 5TH WHEN MORE THAN 2 INCHES WAS
MEASURED. DRIER AIR SOON FOLLOWED AS COOL, DRY CONTINENTAL AIR
SPILLED OUT OF CANADA INTO NEW ENGLAND. THE NEXT SEVERAL WEEKS
FOLLOWED A SIMILAR PATTERN: JUST AS SOON AS THE HEAT WOULD BEGIN TO
BUILD A COLD FRONT WOULD BRING IN COOLER, DRY AIR. THIS CONTINUED
THROUGH THE FIRST PART OF JULY WITH DRY AND WARM WEATHER FOR
INDEPENDENCE DAY. THINGS BEGAN TO CHANGE AGAIN IN MID JULY. FIRST
WAS A PERIOD OF COOL, DAMP, ONSHORE WINDS WHICH LED TO ONE OF THE
COOLEST JULY DAYS ON RECORD WHEN THE TEMPERATURE DID NOT RISE ABOVE
59 DEGREES ON JULY 9. THIS COOL DOWN WAS ONLY TEMPORARY AS A BROADER
SHIFT TOWARD WARMER WEATHER WAS ABOUT TO BEGIN. THE HOTTEST PART OF
THE SUMMER WAS FROM JULY 15 THRU AUGUST 15. DURING THIS TIME THERE
WERE 24 DAYS ABOVE 80 DEGREES AND 7 DAYS ABOVE 90. THE HOTTEST DAY
OF THE YEAR WAS AUGUST 12 WHEN THE TEMPERATURE REACHED 99 DEGREES.
THIS WAS THE HOTTEST TEMPERATURE OBSERVED AT PORTLAND IN MORE THAN 5
YEARS AND THE 4TH HOTTEST TEMPERATURE ON RECORD FOR THE MONTH OF
AUGUST. ALTHOUGH THE EXTREME HEAT DID NOT RETURN, WARM WEATHER
CONTINUED THROUGH THE REST OF AUGUST LEADING TO THE WARMEST AUGUST
ON RECORD.

THE AVERAGE TEMPERATURE FOR THE SUMMER WAS 68.9 DEGREES WHICH WAS
2.0 DEGREES ABOVE NORMAL AND THE WARMEST ON RECORD. UNTIL THIS YEAR,
THE WARMEST SUMMER WAS 68.7 DEGREES IN 2010 AND 1988. THE COOLEST
WAS 63.7 DEGREES IN 1964. THE FOLLOWING TABLE LISTS THE WARMEST
SUMMERS AT PORTLAND.

WARMEST AVERAGE TEMPERATURE IN SUMMER (SINCE 1940)
RANK  TEMP  YEAR
1     68.9  2016 <===
2     68.7  2010
      68.7  1988
4     68.6  1999
5     68.5  2012
      68.5  1991
      68.5  1973

THE HIGH TEMPERATURE ON JULY 9 WAS ONLY 59 DEGREES, ONE OF THE
COLDEST ON RECORD FOR THE MONTH OF JULY. THE FOLLOWING TABLE LISTS
THE COLDEST HIGH TEMPERATURES IN JULY.

COLDEST HIGH TEMPERATURE IN JULY (SINCE 1940)
RANK  HIGH  DATE
1      57   JUL 4, 1992
2      58   JUL 8, 2009
       58   JUL 6, 1956
4      59   JUL 9, 2016 <===
       59   JUL 2, 2009
       59   JUL 1, 2009
       59   JUL 3, 1987
       59   JUL 30, 1976
       59   JUL 16, 1961
       59   JUL 8, 1961

THE HIGH TEMPERATURE OF 99 DEGREES ON AUGUST 12 WAS ONE OF THE
HOTTEST ON RECORD FOR THE MONTH OF AUGUST. THE FOLLOWING TABLE LISTS
THE HOTTEST TEMPERATURES IN AUGUST.

HOTTEST AUGUST TEMPERATURE (SINCE 1940)
RANK  HIGH  DATE
1     103   AUG 2, 1975
2     100   AUG 27, 1948
      100   AUG 28, 1948
4      99   AUG 12, 2016 <===
       99   AUG 13, 1947
       99   AUG 12, 1944
       99   AUG 11, 1944

THERE WERE 48 DAYS THIS SUMMER ON WHICH THE TEMPERATURE REACHED 80
DEGREES OR WARMER. THIS WAS TIED FOR THE THIRD MOST ON RECORD. THE
FOLLOWING TABLE LISTS THE MOST DAYS OF 80 DEGREES OR WARMER IN
SUMMER.

MOST DAYS 80 DEGREES OR WARMER IN SUMMER (SINCE 1940)
RANK  DAYS  YEAR
1      49   1991
       49   1952
3      48   2016
       48   2010
5      47   1999

A TOTAL OF 8.02 INCHES OF RAIN FELL THIS SUMMER WHICH WAS 2.52
INCHES BELOW NORMAL AND THE DRIEST SUMMER SINCE 2003. THE HEAVIEST
RAIN FELL ON JUNE 5 WHEN 2.43 INCHES WAS MEASURED. THE REST OF THE
SUMMER WAS MUCH DRIER, LEADING TO DROUGHT DEVELOPMENT. THE DRIEST
SUMMER ON RECORD WAS IN 1999 WHEN ONLY 4.10 INCHES FELL. THE WETTEST
WAS 2009 WITH 22.31 INCHES.

THE FOLLOWING DAILY RECORDS WERE SET OR TIED IN SUMMER 2016...
DATE    RECORD                               PREVIOUS
JUN 5   3    - SMALLEST TEMPERATURE RANGE    3 IN 1945 /TIED/
JUN 5   2.43 - GREATEST PRECIPITATION        2.12 IN 2007
JUL 9   59   - COOLEST HIGH TEMPERATURE      64 IN 1946
JUL 9   58   - COOLEST AVERAGE TEMPERATURE   60 IN 1961 AND 1946
JUL 9   3    - SMALLEST TEMPERATURE RANGE    5 IN 1957
AUG 6   94   - WARMEST HIGH TEMPERATURE      90 IN 1965
AUG 6   81   - WARMEST AVERAGE TEMPERATURE   80 IN 1988
AUG 12  99   - WARMEST HIGH TEMPERATURE      99 IN 1944 /TIED/

$$

KIMBLE



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