Climatological Report (Monthly)
Issued by NWS Portland, ME

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CLIMATE REPORT
NATIONAL WEATHER SERVICE GRAY ME
512 AM EDT SUN OCT 7 2018

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

...THE GRAY ME CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 2018...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1995 TO 2018

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE
                                          NORMAL
.............................................................
TEMPERATURE (F)
RECORD
 HIGH              96   09/09/2002
 LOW               31   09/29/2000
HIGHEST            89   09/06        87       2       89
LOWEST             39   09/25        39       0       44
AVG. MAXIMUM     71.1              70.0     1.1     75.3
AVG. MINIMUM     53.5              50.7     2.8     55.3
MEAN             62.3              60.4     1.9     65.3
DAYS MAX >= 90      0               0.3    -0.3        0
DAYS MAX <= 32      0               0.0     0.0        0
DAYS MIN <= 32      0               0.1    -0.1        0
DAYS MIN <= 0       0               0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        12.55   2008
 MINIMUM         1.06   2016
                        2014
TOTALS           4.77              4.19    0.58     2.57
DAILY AVG.       0.16              0.14    0.02     0.09
DAYS >= .01         7              10.1    -3.1        8
DAYS >= .10         6               6.4    -0.4        5
DAYS >= .50         2               2.8    -0.8        3
DAYS >= 1.00        2               1.3     0.7        0
GREATEST
 24 HR. TOTAL    2.41   09/10 TO 09/11

SNOWFALL (INCHES)
RECORDS
 TOTAL            0.0
TOTALS            0.0               0.0     0.0      0.0
SINCE 7/1         0.0               0.0     0.0      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                                  0
 24 HR TOTAL      0.0

DEGREE_DAYS
HEATING TOTAL     142               168     -26       66
 SINCE 7/1        153               204     -51       97
COOLING TOTAL      68                28      40       83
 SINCE 1/1        519               387     132      521
..............................................................



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

&&

MUCH OF SEPTEMBER FEATURED A RIDGE OF HIGH PRESSURE OVER THE EAST
COAST OR WESTERN ATLANTIC WHICH ALLOWED WARM, HUMID AIR TO MOVE
AROUND IT AND INTO NEW ENGLAND. THE WARMEST PERIOD WAS AT THE
BEGINNING OF THE MONTH WHEN THE TEMPERATURE TOPPED 80 DEGREES FOR 4
STRAIGHT DAYS. THEN A COLD FRONT CAME THROUGH AND BROUGHT SOME
COOLER WEATHER FOR A FEW DAYS. MORE THAN 2 INCHES OF RAIN FELL ON
SEPTEMBER 11 WITH WARM AIR MOVING BACK IN BEHIND IT AGAIN. THIS
WARMTH CONTINUED FOR ABOUT A WEEK UNTIL A COLD FRONT BROUGHT SOME
COOLER WEATHER AGAIN.

THE AVERAGE TEMPERATURE FOR THE MONTH WAS 62.3 DEGREES WHICH WAS 1.9
DEGREES ABOVE NORMAL YET THE COOLEST SEPTEMBER SINCE 2014. THE
WARMEST SEPTEMBER WAS IN 2015 WHEN THE AVERAGE TEMPERATURE WAS 65.4
DEGREES. THE COOLEST WAS IN 2000 WHEN IT WAS ONLY 58.8 DEGREES.

A TOTAL OF 4.77 INCHES OF RAIN FELL WHICH WAS 0.58 INCHES ABOVE
NORMAL. THE HEAVIEST RAIN FELL ON SEPTEMBER 10 AND 11 WHEN 2.41
INCHES WAS MEASURED. THE WETTEST SEPTEMBER WAS IN 2008 WHEN 12.55
INCHES FELL. THE DRIEST RECORDED ONLY 1.06 INCHES IN 2016 AND 2014.

$$

KIMBLE



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