December notes...
Windiest December since 2009. For gusts 50mph or higher at least six occured on Christmas Day and three on December 1st. The term "at least" is used because the archive interval I have my weather station set at of 30 minutes. If multiples occurred in the 30 minutes only the top gust shows. Reviewed notes on these days to see if othjer high gusts were noted. None were.
Top gusts I have recorded are:
60 mph on January 18, 2006
59 mph on December 25, 2020
59 mph on April 8,1999
59 mph on March 22, 1999
58 mph on December 1,2020
57 mph on December 25, 2020
57 mph on October 28, 2006
Interesting the top gusts occur in the same years.
The top rain storm in December is the Christmas storm, however the storm that ended on the 1st but began November 30th was 2.02"
Daily Records summary:
There were two record high temps and no record low temp set in December. There were two records set for cold high temps, joined by two records set in warm daily low temps.
2020 temperature records now stand at 21 record highs, 12 record lows. Ten records have been set for coldest high temps, with 18 days setting records for warmest low temps.
Summary 2020 total: 39 warm records and 22 cold records.
December rankings (out of 23):
High Temp: 6th
Low Temp: 4th
Avg Temp: 5th
Precip: 7th* (tie with 2015)
Wind: 8th
Humidity: 6th
Dew Point: 3rd
Heat Deg: 19th
Cool Deg: --
Barometer: 13th out of 17
Liberty, Maine weather data for...
December, 2020
Daily Data
High Temp 58.0° (12/1)
Low Temp 3.9° (12/16)
Top Rain Storm 0.93" (12/24-26)
Top Snow Storm 7.25" (12/5-6)
High Wind Gust 59 mph (12/25)
Low Windchill -7° (12/16)
High Dew Point 58.0° (12/1)
Low Dew Point -7.6° (12/16)
Barometer H/L 1031.2/984.2mb
Precipitation Days 15
2020 Averages
High Temp 36.33°
Low Temp 24.22°
Avg. Temp 30.27°
Precip. 3.48”
Snow 14.45”
High Wind Gust 22.00 mph
Humidity 78.42%
Dew Point 24.61°
Degree Days 1076.5
Cooling Deg Days 0
Barometer 1012.16 mb
Red= record high since 1998
Blue= record low since 1998
Difference from 2019
High Temp +2.26°
Low Temp +3.24°
Avg. Temp +2.75°
Precip. +0.17”
Snow -0.45”
High Gust +1.65 mph
Humidity +6.03%
Dew Point +5.04°
Degree Days -85.25
Cooling Days 0
Barometer -1.36 mb
20 Year Avg.
High Temp 34.02°
Low Temp 20.46°
Avg. Temp 27.24°
Precip. 3.22”
Snow 19.58”
High Gust 21.53 mph
Humidity 74.58%
Dew Point 19.76°
Degree Days 1170.71
Cooling Days 0
Barometer (17yrs) 1012.78
(avg 1998-2017)
2020 Vs. Average
High Temp +2.31°
Low Temp +3.76°
Avg. Temp +3.03°
Precip. +0.26”
Snow -5.13”
High Gust +0.47 mph
Humidity +3.84%
Dew Point +4.85°
Degree Days -94.21
Cooling Days 0
Barometer -0.62mb
Difference from last month (Nov 2020)
High Temp -14.27°
Low Temp -9.56°
Avg. Temp -11.92°
Precip. +1.87”
Snow +12.95”
High Gust +1.60 mph
Humidity +4.57%
Dew Point -9.93°
H Degree Days +392.1
C Deg Days 0
Barometer -4.26mb
Season snowfall amounts:
(Highest to Lowest)
'14-'15 148.25"
'07-'08 135.90"
'00-'01 126.98"
'10-'11 125.10"
’17-’18 108.15"
’12-’13 100.70"
’18-’19 96.70"
’16-’17 93.65 "
'08-'09 90.25"
'01-'02 85.15"
’13-’14 82.95"
'06-'07 82.65"
'03-'04 78.75"
'98-'99 78.65"
'09-'10 78.45"
'02-'03 74.00"
’19-’20 73.85"
’11-’12 68.70"
'99-'00 64.90"
'05-'06 50.35"
’15-’16 50.10"
'04-'05 44.77"
’20-’21 23.85"
22 season average: 88.14"
May 9th snowstorm.
During one of the two December bike rides.
