Climatological Report (Monthly)
Issued by NWS Portland, ME

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CLIMATE REPORT
NATIONAL WEATHER SERVICE GRAY ME
719 PM EDT TUE SEP 1 2015

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

...THE PORTLAND ME CLIMATE SUMMARY FOR THE MONTH OF AUGUST 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
HIGHEST            89   08/17        90      -1       88  08/27
LOWEST             53   08/07        47       6       49  08/19
AVG. MAXIMUM     79.4              77.7     1.7     76.4
AVG. MINIMUM     61.2              58.2     3.0     57.1
MEAN             70.3              68.0     2.3     66.7
DAYS MAX >= 90      0               1.1    -1.1        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        15.22   1991
 MINIMUM         0.27   1947
TOTALS           2.49              3.14   -0.65     8.56
DAILY AVG.       0.08              0.10   -0.02     0.28
DAYS >= .01         8               9.3    -1.3        9
DAYS >= .10         5               5.1    -0.1        5
DAYS >= .50         2               1.6     0.4        3
DAYS >= 1.00        1               0.7     0.3        2
GREATEST
 24 HR. TOTAL    1.12   08/11

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       0                28     -28       24
 SINCE 7/1         10                45     -35       24
COOLING TOTAL     169               120      49       83
 SINCE 1/1        395               328      67      298
.................................................................

WIND (MPH)
AVERAGE WIND SPEED              5.8
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)     78

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              4     HEAVY RAIN                 3
RAIN                      5     LIGHT RAIN                 8
FREEZING RAIN             0     LT FREEZING RAIN           0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     FOG                       16
FOG W/VIS <= 1/4 MILE     7     HAZE                       2

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

&&

AUGUST SAW ALTERNATING PERIODS OF WARMER AND COOLER WEATHER, THOUGH
ON THE WHOLE MOST DAYS WERE ABOVE NORMAL. THE COOLEST PERIOD WAS THE
SECOND WEEK OF THE MONTH WHEN A COLD FRONT BROUGHT DRY AIR INTO THE
REGION, BRINGING THE COOLEST LOW TEMPERATURES OF THE MONTH... IN THE
LOW 50S. WARM WEATHER DOMINATED THE REST OF THE MONTH WITH A
PREDOMINANT ONSHORE SOUTHERLY WIND FLOW. THIS BROUGHT WARM MOIST AIR
INTO THE AREA WHICH KEPT LOW TEMPERATURES WARM, BUT THE ONSHORE WIND
PREVENTED THE TEMPERATURE FROM EVER REACHING 90 DEGREES.

THE AVERAGE TEMPERATURE FOR THE MONTH WAS 70.3 DEGREES WHICH WAS 2.3
DEGREES ABOVE NORMAL AND THE 7TH WARMEST AUGUST ON RECORD. THE
WARMEST TEMPERATURE OF THE MONTH WAS 89 DEGREES ON THE 17TH. THE
WARMEST AUGUST ON RECORD WAS 1969 WITH AN AVERAGE TEMPERATURE OF
71.3 DEGREES. THE COOLEST WAS 61.1 DEGREES IN 1964.

A TOTAL OF 2.49 INCHES OF RAIN FELL IN THE MONTH WHICH WAS 0.65
INCHES BELOW NORMAL. AS OF THE END OF AUGUST ONLY 26.76 INCHES OF
RAIN HAS FALLEN IN 2015, THE DRIEST YEAR SINCE 2003. THE HEAVIEST
RAIN OF THE MONTH FELL ON THE 11TH WHEN 1.12 INCHES WAS MEASURED.
THE WETTEST AUGUST ON RECORD WAS 1991 WHEN 15.22 INCHES OF RAIN
FELL. THE DRIEST WAS 1947 WHEN ONLY 0.27 WAS MEASURED.

DUE TO ERRORS WITH THE WEATHER OBSERVING EQUIPMENT, DRIZZLE WHICH
FELL ON THE EVENING OF AUGUST 25 WAS NOT RECORDED BY THE AUTOMATED
OBSERVING EQUIPMENT. DRIZZLE WAS OBSERVED AND ESTIMATED TO HAVE
ACCUMULATED TO A DEPTH OF 0.05 INCHES BASED ON NEARBY OBSERVATIONS.
THIS ESTIMATE IS INCLUDED IN THE ABOVE SUMMARY INFORMATION.

THE FOLLOWING DAILY RECORDS WERE SET OR TIED IN AUGUST 2015...
DATE  RECORD                              PREVIOUS
11    3    - SMALLEST TEMPERATURE RANGE   4 IN 1943
20    67   - WARMEST LOW TEMPERATURE      66 IN 2004
23    5    - SMALLEST TEMPERATURE RANGE   6 IN 1970
24    66   - WARMEST LOW TEMPERATURE      66 IN 2009 /TIED/

$$

KIMBLE


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