Climatological Report (Seasonal)
Issued by NWS Portland, ME

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CXUS51 KGYX 071055
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TTAA00 KGYX 041002


CLIMATE REPORT
NATIONAL WEATHER SERVICE GRAY ME
555 AM EST THU DEC 7 2017

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

...THE GRAY ME CLIMATE SUMMARY FOR THE FALL SEASON, FROM
9/1/2017 TO 11/30/2017...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1995 TO 2017

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE
                                          NORMAL
.............................................................
TEMPERATURE (F)
RECORD
 HIGH              96   09/09/2002
 LOW                9   11/30/2013
                        11/25/2000
HIGHEST            89   09/24        86       3       92
LOWEST             14   11/28        18      -4       24
AVG. MAXIMUM     62.3              58.0     4.3     60.3
AVG. MINIMUM     43.6              40.6     3.0     43.3
MEAN             53.0              49.3     3.7     51.8
DAYS MAX >= 90      0               0.6    -0.6        1
DAYS MAX <= 32      1               2.1    -1.1        1
DAYS MIN <= 32     22              22.6    -0.6       20
DAYS MIN <= 0       0               0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        26.48   2005
TOTALS          10.61             14.68   -4.07    13.20
DAILY AVG.       0.12              0.16   -0.04     0.14
DAYS >= .01        26              33.3    -7.3       35
DAYS >= .10        17              20.7    -3.7       18
DAYS >= .50        10               9.3     0.7        8
DAYS >= 1.00        3               4.7    -1.7        4
GREATEST
 24 HR. TOTAL    1.62   10/26                       4.02

SNOWFALL (INCHES)
RECORDS
 TOTAL           23.9   1997
TOTALS            1.2               3.1    -1.9      1.3
SINCE 7/1         1.2               3.1    -1.9      1.3
SNOWDEPTH AVG.      0
DAYS >= TRACE       4               2.2     1.8       10
DAYS >= 1.0         1               0.9     0.1        0
GREATEST
 SNOW DEPTH         1   11/14                          1
 24 HR TOTAL      1.2   11/13                        1.0

DEGREE_DAYS
HEATING TOTAL    1162              1460    -298     1260
 SINCE 7/1       1193              1497    -304     1279
COOLING TOTAL      94                30      64       80
 SINCE 1/1        532               389     143      607
..............................................................



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

&&

AFTER A RELATIVELY COOL AUGUST, THE COOL FALL-LIKE WEATHER CONTINUED
INTO THE FIRST FEW DAYS OF SEPTEMBER. AFTER A FEW DAYS OF RAIN, A
NEW WEATHER PATTERN BEGAN TO EMERGE. A RIDGE OF HIGH PRESSURE OVER
THE WESTERN ATLANTIC AND THE EAST COAST BROUGHT RELATIVELY WARM AIR
NORTHWARD INTO NEW ENGLAND. ALTHOUGH A FEW COLD FRONTS MANAGED TO
SNEAK INTO THE AREA BRINGING BRIEFLY COOLER WEATHER, THE OVERALL
TREND OF WARMER THAN NORMAL TEMPERATURES CONTINUED FOR SEVERAL
WEEKS. THE WARMEST PERIOD WAS IN LATE SEPTEMBER WHEN THE TEMPERATURE
TOPPED 80 DEGREES FOR 5 STRAIGHT DAYS FROM SEPTEMBER 23 THROUGH 27.
THE PERSISTENT WARMTH CONTINUED DEEP INTO OCTOBER. AFTER A MOSTLY
DRY FIRST HALF OF FALL, A SERIES OF LOW PRESSURE SYSTEMS MOVED
THROUGH NEW ENGLAND LATE IN OCTOBER. NEARLY 3 INCHES OF RAIN FELL ON
OCTOBER 25 AND 26. ANOTHER LOW PRESSURE SYSTEM BROUGHT ANOTHER INCH
OF RAIN AND STRONG WINDS ON THE NIGHT OF OCTOBER 29 INTO THE MORNING
OF THE 30TH. THE STRONG WINDS BROUGHT SIGNIFICANT WIND DAMAGE TO THE
REGION. THIS PERIOD OF STORMY WEATHER SIGNALED A COMING CHANGE IN
THE WEATHER PATTERN AS THE PERSISTENT WARMTH FINALLY BEGAN TO BREAK
DOWN. AFTER ANOTHER BRIEF PERIOD OF WARMTH, A COLD FRONT ON NOVEMBER
6 BROUGHT COLD AIR INTO THE REGION. EVEN COLDER AIR POURED IN
STRAIGHT OUT OF THE ARCTIC A FEW DAYS LATER. THE FIRST MEASURABLE
SNOW OF THE SEASON OCCURRED ON NOVEMBER 13 WHEN 1.2 INCHES FELL.
COLD WEATHER CONTINUED THROUGH MUCH OF NOVEMBER WITH ONLY BRIEF
EXCEPTIONS AS A SERIES OF COLD FRONTS KEPT BRINGING MORE COLD AIR IN
DURING THE MONTH. ALTHOUGH THE FALL ENDED COLDER THAN NORMAL, THE
VERY WARM START TO THE SEASON ENSURED PORTLAND WOULD FINISH TIED AS
THE WARMEST FALL ON RECORD.

THE AVERAGE TEMPERATURE FOR THE FALL WAS 53.0 DEGREES WHICH WAS 3.7
DEGREES ABOVE NORMAL AND THE WARMEST FALL YET RECORD AT THE NATIONAL
WEATHER SERVICE OFFICE IN GRAY. UNTIL THIS YEAR, THE WARMEST FALL
WAS 2011 WHEN THE AVERAGE TEMPERATURE WAS 52.4 DEGREES. THE COOLEST
FALL WAS IN 1997 WHEN THE AVERAGE TEMPERATURE WAS 47.3 DEGREES.

A TOTAL OF 10.61 INCHES OF PRECIPITATION FELL WHICH WAS 4.07 INCHES
BELOW NORMAL AND THE DRIEST FALL SINCE 2012. ALMOST HALF OF THE RAIN
THAT FELL THIS FALL FELL DURING THE LAST WEEK OF OCTOBER WHEN NEARLY
5 INCHES OF RAIN WAS MEASURED. THE DRIEST FALL ON RECORD WAS IN 2001
WHEN ONLY 8.91 INCHES OF PRECIPITATION WAS RECORDED. THE WETTEST WAS
IN 2005 WHEN 26.48 INCHES FELL.

ONLY 1.2 INCHES OF SNOW FELL WHICH WAS 1.9 INCHES BELOW NORMAL. FALL
SNOWFALL CAN BE QUITE VARIABLE, WITH MEASURABLE SNOWFALL OBSERVED
ABOUT 83 PERCENT OF THE TIME. THE SNOWIEST FALL WAS IN 1997 WHEN
23.9 INCHES WAS MEASURED. ONLY A TRACE FELL IN 4 SEPARATE YEARS,
MOST RECENTLY IN 2006.

$$

KIMBLE



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