Climatological Report (Monthly)
Issued by NWS Portland, ME

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CLIMATE REPORT
NATIONAL WEATHER SERVICE GRAY ME
1247 PM EDT THU OCT 2 2014

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

...THE PORTLAND ME CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 2014...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1941 TO 2014 /FOR TEMPERATURES/
CLIMATE RECORD PERIOD 1871 TO 2014 /FOR PRECIPITATION/
CLIMATE RECORD PERIOD 1882 TO 2014 /FOR SNOWFALL/

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE  DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH              95   09/11/1983
                        09/07/1945
 LOW               23   09/30/1941
HIGHEST            87   09/06        86       1       93  09/11
LOWEST             36   09/20        37      -1       38  09/24
                        09/19
AVG. MAXIMUM     70.4              70.0     0.4     70.3
AVG. MINIMUM     49.8              50.3    -0.5     49.2
MEAN             60.1              60.1     0.0     59.8
DAYS MAX >= 90      0               0.3    -0.3        1
DAYS MAX <= 32      0               0.0     0.0        0
DAYS MIN <= 32      0               0.2    -0.2        0
DAYS MIN <= 0       0               0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        10.84   2008
 MINIMUM         0.30   1948
TOTALS           0.87              3.69   -2.82     6.72
DAILY AVG.       0.03              0.12   -0.09     0.22
DAYS >= .01         8               9.2    -1.2       11
DAYS >= .10         2               5.6    -3.6        7
DAYS >= .50         0               2.3    -2.3        3
DAYS >= 1.00        0               1.1    -1.1        3
GREATEST
 24 HR. TOTAL    0.34   09/21 TO 09/22

SNOWFALL (INCHES)
RECORDS
 TOTAL              T   1992
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
 STORM TOTAL      0.0
 (MM/DD(HH))

DEGREE_DAYS
HEATING TOTAL     186               176      10      186
 SINCE 7/1        210               221     -11      204
COOLING TOTAL      45                30      15       37
 SINCE 1/1        343               358     -15      454
.................................................................

WIND (MPH)
AVERAGE WIND SPEED              5.8
HIGHEST WIND SPEED/DIRECTION    26/290    DATE  09/22
HIGHEST GUST SPEED/DIRECTION    33/260    DATE  09/22

SKY COVER
AVERAGE SKY COVER           0.40

AVERAGE RH (PERCENT)     75

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     HEAVY RAIN                 1
RAIN                      3     LIGHT RAIN                 8
FREEZING RAIN             0     LT FREEZING RAIN           0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     FOG                       19
FOG W/VIS <= 1/4 MILE     5     HAZE                       3

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

&&

AFTER THE SECOND WETTEST AUGUST ON RECORD... PORTLAND EXPERIENCED A
VERY DRY SEPTEMBER. THE WARM SUMMER-LIKE WEATHER THAT FINALLY
ARRIVED AT THE END OF AUGUST CONTINUED INTO THE FIRST PART OF
SEPTEMBER. THE SECOND WARMEST DAY OF THE YEAR OCCURRED ON SEPTEMBER
6 WHEN THE TEMPERATURE ROSE TO 87 DEGREES. SOON AFTER THERE WAS A
RETURN TO COOLER WEATHER. THE MIDDLE TWO WEEKS OF THE MONTH WERE
CONSISTENTLY COOL...BUT WARMER AIR WOULD ARRIVE ONCE AGAIN AT THE END
OF THE MONTH... HELPING TO BRING THE AVERAGE TEMPERATURE FOR THE
MONTH BACK UP TO NORMAL.

THE AVERAGE TEMPERATURE FOR THE MONTH WAS 60.1 DEGREES WHICH WAS
RIGHT AT THE NORMAL FOR THE MONTH OF SEPTEMBER. THE WARMEST
SEPTEMBER ON RECORD WAS 1961 WITH AN AVERAGE TEMPERATURE OF 64.1
DEGREES. THE COOLEST WAS 1950 WITH AN AVERAGE OF ONLY 54.5 DEGREES.

AS SEPTEMBER ENDED PORTLAND HAD STILL NOT REACHED 90 DEGREES IN
2014. THIS IS THE FIRST TIME THIS HAS HAPPENED SINCE 2008. NORMALLY
PORTLAND SEES 4.6 DAYS PER YEAR AT 90 OR ABOVE... INCLUDING 0.3 DAYS
IN SEPTEMBER. BELOW IS A LIST OF THE COOLEST YEARLY MAXIMUM
TEMPERATURES AT PORTLAND.

COOLEST YEARLY MAXIMUM TEMPERATURES
RANK    TEMP    YEAR
1       86      1996
2       87      1972
3       88      2014 <===
        88      2008
        88      1986
        88      1974
        88      1962
7       90      2000
        90      1992

A TOTAL OF 0.87 INCHES OF RAIN FELL IN SEPTEMBER. THIS WAS LESS THAN
A QUARTER OF THE NORMAL PRECIPITATION FOR THE MONTH OF 3.69 INCHES.
ALTHOUGH THIS WAS ONLY THE 12TH DRIEST SEPTEMBER ON RECORD... IT WAS
ALSO THE DRIEST SINCE 1984 WHEN 0.84 INCHES WAS RECORDED.  THE
WETTEST SEPTEMBER WAS 2008 WHEN 10.84 INCHES OF RAIN FELL. THE
DRIEST WAS 1948 WHEN ONLY 0.30 INCHES FELL.

THE FOLLOWING DAILY RECORDS WERE SET OR TIED IN SEPTEMBER 2014...
DATE  RECORD                              PREVIOUS
6     76 - WARMEST AVERAGE TEMPERATURE    76 IN 1983 /TIED/
27    84 - WARMEST MAXIMUM TEMPERATURE    80 IN 1948
27    67 - WARMEST AVERAGE TEMPERATURE    67 IN 2007 AND OTHERS /TIED/

$$

KIMBLE



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