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National Weather Service gray ME
1130 am EST Thu Jan 4, 2007
The year 2006 in Portland Maine will go into the record
books as the warmest year on record. Here are some of the
climatological statistics and a discussion of the weather
highlights for the past year.
Temperature data year 2006 normal departure
avg. Monthly 48.5 45.7 plus 2.8
avg. Maximum 57.3 55.2 plus 2.1
avg. Minimum 39.7 36.3 plus 3.4
The Mercury never dipped to zero or colder for the entire
year. The coldest reading for the year was 1 degree above
zero on February 27th. This was the coldest day of the
year with the coldest daily high temperature of 17 and the
coldest daily average temperature of 9 degrees.
Number of days: year 2006 normal
Maximum 90 or above 3 4.5 minus 1.5
maximum 32 or below 30 47.7 minus 17.7
minimum 32 or below 133 154.7 minus 21.7
minimum 0 or below 0 13.3 minus 13.3
Highest temperature... 95 on Aug 2nd
lowest temperature... 1 on Feb 27th
coldest high... 17 on Feb 27th
warmest low... . 74 on Aug 2nd
Warmest day... Aug 2nd with an average of 85 degrees
coldest day... Feb 27th with an average of 9 degrees
year 2006 normal departure
Heating degree days 6310 7318 minus 1008
cooling degree days 432 347 plus 85
Heating and cooling degree days listed are for the calendar year.
The heating degree day season normally runs from July 1st through
June 30th... while the cooling degree season normally runs from
January 1st through December 31st.
Year 2006 normal departure
Precipitation data 60.86 45.83 plus 15.03
snowfall data 29.4 66.4 minus 37.0
Greatest precipitation in 24 hours... 3.57 inches on may 2nd-3rd
greatest snowfall in 24 hours... 5.8 inches on February 12th
greatest snow depth on ground... 6 inches on February 13th
Number of days with precipitation of normal departure
.01 inch or more 138 128.1 plus 9.9
.10 inch or more 93 77.3 plus 15.7
.50 inch or more 41 28.9 plus 12.1
1.00 inch or more 15 10.7 plus 4.3
number of days with snowfall of normal departure
1 whole inch or more 8 17.2 minus 9.2
3 whole inches or more 3 9.0 minus 6.0
6 whole inches or more 0 3.6 minus 3.6
Number of days with thunderstorms... 18 17.6 plus 0.4
number of days with heavy fog... 49 48.6 plus 0.4
(visibility 1/4 mile or less)
... Portland Maine 2006 monthly temperature data...
(rank: 1st = warmest, 66th = coldest)
departure
month avg high avg low mean temp from normal rank
Jan 37.7 22.8 30.3 plus 8.6 2nd
Feb 34.1 17.5 25.8 plus 1.0 22nd
Mar 44.8 24.1 34.5 plus 0.8 20th
Apr 55.6 35.7 45.7 plus 2.0 6th
may 62.6 46.5 54.6 plus 0.8 18th (tied)
Jun 72.1 57.9 65.0 plus 2.1 6th (tied)
Jul 81.3 62.6 72.0 plus 3.3 2nd
Aug 76.5 57.4 66.9 minus 0.3 33rd
Sep 69.7 50.9 60.3 plus 1.6 20th (tied)
Oct 58.5 39.5 49.0 plus 1.3 29th
Nov 51.8 35.8 49.0 plus 5.5 1st
Dec 43.3 25.6 34.5 plus 6.9 2nd (tied)
Year 57.3 39.7 48.5 plus 2.8 1st
... Portland Maine 2006 monthly precipitation data...
(rank: 1st = wettest, 136th = driest)
Month precipitation departure
from normal rank
Jan 3.71 minus 0.38 62nd
Feb 2.75 minus 0.39 90th
Mar 1.02 minus 3.12 133rd
Apr 3.02 minus 1.24 78th
may 12.34 plus 8.52 1st
Jun 9.18 plus 5.90 3rd
Jul 5.65 plus 2.33 11th
Aug 2.38 minus 0.67 80th
Sep 3.57 plus 0.20 49th
Oct 8.38 plus 3.98 5th
Nov 5.50 plus 0.78 31st
Dec 3.36 minus 0.88 81st
Year 60.86 plus 15.03 4th
... Portland Maine 2006 monthly snowfall data...
(rank: 1 = snowiest, 125th = least snowiest)
departure
month snowfall from normal rank
Jan 13.7 minus 6.8 80th
Feb 9.6 minus 3.2 99th
Mar 1.0 minus 12.0 119th
Apr 0.0 minus 2.7 83rd (tied)
may 0.0 minus trace 23rd (tied)
Jun 0.0 normal ----
Jul 0.0 normal ----
Aug 0.0 normal ----
Sep 0.0 normal ----
Oct 0.0 minus 0.1 48th (tied)
Nov 0.0 minus 3.2 122nd (tied)
Dec 4.6 minus 9.0 110th (tied)
Year 29.4 minus 37.0 ----
Note... snowfall for the year is given for the calendar year.
Normally snowfall totals and rankings are give for the season
... From July 1st through June 30th.
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