Return to Home Page

May notes...


       Through the 27th May was in challenging the warmest May but the real story was precipitation...

     Including the 0.04" we received on the 29th the total rain for the month was 0.37".  This would not only be the lowest May total in my records but the lowest monthly total. That record is held by January, 2004 with a total of 0.46".  The rainfall received on the 30th and 31st was 1.37".  

     For average temperature this month looked to come in about 2-2.5° above average but the final weekend set three cold records and lowered the average temp by 1.12°.

Daily Records summary:

     Three record highs were set, along with one record low ( a tie with 2019 on 5/29). Two records were set for coldest high temp but no records were set for warmest low temp.

     2021 temperature records stand at eleven record highs and three record lows.  Four records have been set for coldest high temps, with seven days setting a record for warmest low temp.  

     Summary 2021 total: 18 warm records and 7 cold records.


     The 20 year average temp through the end of May is 35.29°.  The average temp this year through May is 37.57°.  At this point the year is 2.28° warmer.

     


May rankings (out of 24):

High Temp:     8th

Low Temp:     10th

Avg Temp:          9th

Precip:          17th

Snow:          --

Wind:          23rd

Humidity:          23rd

Dew Point:     22nd

Heat Deg:          19th

Cool Deg:          15th

Barometer:     7th out of 21



Liberty, Maine weather data for...

May, 2021

Daily Data

High Temp              89.0° (5/26)

Low Temp               38.2° (5/7)

Top Rain Storm       1.37" (5/30-31)

High Wind Gust      25 mph (5/2)

Low Windchill          36° (5/7)

High Dew Point      64.5° (5/22)     

Low Dew Point       18.3° (5/3)

Barometer  H/L      1031.0/991.1mb

Precipitation Days    10

2021 Averages

High Temp              67.11°

Low Temp               45.68°

Avg. Temp               56.40°

Precip.                       1.74”

Snow                         --

High Wind Gust       17.29 mph

Humidity                   59.61%

Dew Point                 39.09°

Degree Days            259.85

Cooling Deg Days     9.75

Barometer            1014.16 mb

Red= record high since 1998

Blue= record low since 1998

Difference from 2020

High Temp         +1.23°

Low Temp          +1.96°

Avg. Temp         +1.60°

Precip.               -0.16”

Snow                  -3.00”

High Gust          -3.06 mph

Humidity            -0.66%

Dew Point          +1.62°

Degree Days      -87.8

Cooling Days      -21.65

Barometer          +1.76 mb

20 Year Avg.

High Temp      64.91°

Low Temp       45.59°

Avg. Temp       55.25°

Precip.              3.45”

Snow                0.00”

High Gust         20.08 mph

Humidity           69.49%

Dew Point         42.97°

Degree Days     311.81

Cooling Days      14.62

Barometer         1012.48


(avg 1998-2017)

2021 Vs. Average

High Temp         +2.21°

Low Temp          +0.09°

Avg. Temp         +1.15°

Precip.               -1.71”

Snow                  0”

High Gust          -2.79 mph

Humidity            -9.88%

Dew Point          +3.88°

Degree Days     -51.96

Cooling Days      -4.87

Barometer          +1.68mb

Difference from last month (Apr 2021)

High Temp      +10.58°

Low Temp       +9.14°

Avg. Temp      +9.87°

Precip.            -1.68”

Snow              -4.00”

High Gust        -2.88 mph

Humidity          -4.91%

Dew Point        +6.23°

H Degree Days  -294.15

C Deg Days      +9.75

Barometer       +6.23mb

Precipitation Days     same

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"

’20-’21      55.55"

'05-'06      50.35"

’15-’16      50.10"

'04-'05      44.77"



22 season average: 88.14"

(placeholder)

20 Year

Summary Charts

(placeholder)

Yearly Summary

2020

May 9th snowstorm.

Lowest Atlantic Pressures

Waiting for image, if I do not use one of my own.


I have not checked for typos yet, but getting it posted now while time allows.