Climatological Report (Seasonal)
Issued by NWS Portland, ME

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CLIMATE REPORT
NATIONAL WEATHER SERVICE GRAY ME
1201 PM EST THU DEC 6 2018

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

...THE GRAY ME CLIMATE SUMMARY FOR THE FALL SEASON, FROM
9/1/2018 TO 11/30/2018...

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                3   11/22/2018
HIGHEST            89   09/06        86       3       89
LOWEST              3R  11/22        18     -15       14
AVG. MAXIMUM     54.3              58.0    -3.7     62.3
AVG. MINIMUM     40.0              40.6    -0.6     43.6
MEAN             47.2              49.3    -2.1     53.0
DAYS MAX >= 90      0               0.6    -0.6        0
DAYS MAX <= 32      6               2.1     3.9        1
DAYS MIN <= 32     30              22.6     7.4       22
DAYS MIN <= 0       0               0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        26.48   2005
TOTALS          17.79             14.68    3.11    10.61
DAILY AVG.       0.20              0.16    0.04     0.12
DAYS >= .01        34              33.3     0.7       26
DAYS >= .10        27              20.7     6.3       17
DAYS >= .50        12               9.3     2.7       10
DAYS >= 1.00        5               4.7     0.3        3
GREATEST
 24 HR. TOTAL    2.41   09/10 TO 09/11              1.62

SNOWFALL (INCHES)
RECORDS
 TOTAL           23.9   1997
TOTALS           20.8               3.1    17.7      1.2
SINCE 7/1        20.8               3.1    17.7      1.2
SNOWDEPTH AVG.      1
DAYS >= TRACE      15               2.2    12.8        4
DAYS >= 1.0         4               0.9     3.1        1
GREATEST
 SNOW DEPTH         8   11/27                          1
                        11/21
                        11/22
 24 HR TOTAL      7.9   11/26 TO 11/27               1.2

DEGREE_DAYS
HEATING TOTAL    1675              1460     215     1162
 SINCE 7/1       1686              1497     189     1193
COOLING TOTAL      70                30      40       94
 SINCE 1/1        521               389     132      532
..............................................................



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

&&

FALL IS KNOWN AS A TRANSITION SEASON AS THE WEATHER CHANGES FROM
SUMMER TO WINTER. BUT THIS FALL SAW A MUCH MORE ABRUPT TRANSITION
THAN NORMAL. FROM A WELL ABOVE NORMAL SEPTEMBER TO A COLD OCTOBER
AND SNOWY NOVEMBER, THE SUDDEN TRANSITION TO WINTER LIKE WEATHER WAS
MORE OF A SHOCK THAN USUAL. IT WOULD FINISH AS THE COLDEST AND ONE
OF THE SNOWIEST FALLS ON RECORD.

IT ALL BEGAN WITH A RIDGE OF HIGH PRESSURE OVER THE EAST COAST AND
WESTERN ATLANTIC WHICH CONTINUALLY PUMPED WARM AND HUMID AIR AROUND
IT AND INTO NEW ENGLAND. ALTHOUGH THERE WERE OCCASIONAL COLD FRONTS
THAT BROUGHT BRIEFLY COOLER WEATHER, THE WARM AND HUMID CONDITIONS
WOULD KEEP RETURNING. OCCASIONAL STORMS BROUGHT HEAVY RAINFALL,
INCLUDING MORE THAN 2 INCHES ON SEPTEMBER 11, BUT MOST DAYS WERE DRY.

THIS ALL BEGAN TO CHANGE IN MID OCTOBER. THE LAST OF THE WARMTH WAS
ON OCTOBER 10 WHEN IT SOARED TO 83 DEGREES BEFORE A COLD FRONT BLEW
THROUGH AND SENT THE TEMPERATURE TUMBLING. THE FIRST FREEZE OF THE
SEASON CAME ON OCTOBER 18 ALONG WITH THE FIRST COATING OF SNOW OF
THE SEASON. A TROUGH BEGAN DEVELOPING OVER THE EASTERN UNITED STATES
WHICH BROUGHT SEVERAL ROUNDS OF COLD WEATHER INTO THE AREA. BEING ON
THE EASTERN SIDE OF THIS TROUGH MEANT THAT MOST OF THE STORMS
TRACKING ACROSS THE COUNTRY WOULD EXIT THROUGH NEW ENGLAND, BRINGING
NEW PRECIPITATION EVERY FEW DAYS. OCTOBER ENDED UP BEING THE COLDEST
IN THE SHORT 24-YEAR HISTORY OF OBSERVATIONS AT THE NATIONAL WEATHER
SERVICE OFFICE IN GRAY. BUT THE PATTERN DIDN`T CHANGE IN NOVEMBER,
IN FACT IT GOT EVEN COLDER. A COLD FRONT ON NOVEMBER 13 BROUGHT VERY
COLD AIR INTO THE REGION, AND THE TEMPERATURE DID NOT RISE ABOVE
FREEZING FOR THE NEXT TWO DAYS. WITH THE COLD AIR IN PLACE, THE
FIRST SNOWSTORM OF THE SEASON ARRIVED WITH MORE THAN 5 INCHES
RECORDED ON NOVEMBER 16. ANOTHER SNOWSTORM CAME JUST A FEW DAYS
LATER ON NOVEMBER 20. A BRUTALLY COLD ARCTIC AIR MASS POURED IN
BEHIND THIS STORM JUST IN TIME FOR THANKSGIVING. AFTER DROPPING TO 3
DEGREES ON THANKSGIVING MORNING, NOVEMBER 22, THE TEMPERATURE ONLY
WARMED TO 14 DEGREES THAT AFTERNOON. THIS WAS THE COLDEST FALL DAY
ON RECORD AT GRAY. THE TEMPERATURE BEGAN TO MODERATE BACK TOWARD
NORMAL BY THE END OF NOVEMBER, BUT NOT BEFORE ONE MORE STORM SYSTEM
BROUGHT SNOW AND RAIN WITH THE EARLY SEASON SNOW COVER STILL SOLIDLY
IN PLACE.

THE AVERAGE TEMPERATURE FOR THE FALL WAS 47.2 DEGREES WHICH WAS 2.1
DEGREES BELOW NORMAL AND THE COLDEST ON RECORD AT GRAY. UNTIL THIS
YEAR, THE COLDEST FALL WAS IN 1997 WHEN THE AVERAGE TEMPERATURE WAS
47.3 DEGREES. THE WARMEST WAS JUST LAST YEAR WHEN IT WAS 53.0
DEGREES. THE FOLLOWING TABLE LISTS THE COLDEST FALLS AT GRAY.

COLDEST AVERAGE TEMPERATURE IN FALL (SINCE 1996)...
RANK  AVE   YEAR
1     47.2  2018  <===
2     47.3  1997
3     47.4  1996
4     49.0  2002
      49.0  2000

NOVEMBER 22, THANKSGIVING, WAS THE COLDEST FALL DAY ON RECORD. THE
FOLLOWING TABLE LISTS THE COLDEST HIGHS AND LOWS ON RECORD FOR THE
FALL IN GRAY.

COLDEST TEMPERATURES OBSERVED IN FALL (SINCE 1995)...
HIGH TEMPERATURE                |  LOW TEMPERATURE
RANK  TEMP  DATE                |  TEMP  DATE
1      14   NOV 22, 2018  <===  |    3   NOV 22, 2018  <===
2      24   NOV 29, 2013        |    8   NOV 23, 2018  <===
3      25   NOV 22, 2008        |    9   NOV 30, 2013
4      25   NOV 23, 1997        |    9   NOV 25, 2000
5      26   NOV 23, 2018  <===  |   12   NOV 30, 2012
6      26   NOV 25, 2013        |   12   NOV 24, 2000
7      26   NOV 24, 2013        |   12   NOV 30, 1995
8      26   NOV 28, 2002        |   13   NOV 15, 2018  <===
9      26   NOV 14, 1997        |   13   NOV 29, 2013
10     26   NOV 27, 1996        |   13   NOV 28, 1996

A TOTAL OF 17.79 INCHES OF PRECIPITATION FELL WHICH WAS 3.11 INCHES
ABOVE NORMAL AND THE WETTEST FALL SINCE 2008. THE WETTEST FALL ON
RECORD WAS IN 2005 WHEN 26.48 INCHES WAS MEASURED. THE DRIEST WAS IN
2001 WHEN ONLY 8.91 INCHES WAS RECORDED.

A TOTAL OF 20.8 INCHES OF SNOW FELL WHICH WAS 17.7 INCHES ABOVE
NORMAL AND THE 3RD SNOWIEST FALL ON RECORD. THE HEAVIEST SNOW FELL
ON NOVEMBER 26 AND 27 WHEN 7.9 INCHES WAS MEASURED. THE SNOWIEST
FALL ON RECORD WAS IN 1997 WHEN 23.9 INCHES FELL. THERE HAVE BEEN 4
YEARS WHICH RECORDED ONLY A TRACE OF SNOW IN FALL, MOST RECENTLY IN
2006.

$$

KIMBLE



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