Difference from last month (August 2018)

High Temp      -8.61°

Low Temp       -9.43°

Avg. Temp       -9.02°

Precip.             +2.01”

Snow               --

High Gust        +0.09mph

Humidity          -1.82%

Dew Point        -9.65°

H Degree Days +147.35

C Deg Days      -129.70

Barometer       +6.30mb

Difference from 2017

High Temp         -2.74°

Low Temp          -1.70°

Avg. Temp         -2.22°

Precip.               +2.13”

Snow                     --

High Gust          -1.40 mph

Humidity            +1.79%

Dew Point          -1.68°

Degree Days    +56.90

Cooling Days      -9.75

Barometer         +6.10mb

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"

’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"

’11-’12      68.70"

'99-'00      64.90"

'05-'06      50.35"

’15-’16       50.10"

'04-'05      44.77"


Twenty season

average: 88.43"

Liberty Weather, September 2018

2018 Vs. Average

High Temp     +0.71°

Low Temp     +1.10°

Avg. Temp     +0.90°

Precip.           +0.78”

Snow                --

High Gust      -4.51mph

Humidity        -1.72%

Dew Point      -0.01°

Degree Days    +5.48

Cooling Days    +32.55

One of the metal sculptures in Phillips, Maine.

2018 Averages

High Temp              70.77°

Low Temp               54.03°

Avg. Temp               62.40°

Precip.                       4.48”

Snow                            --

High Wind Gust       12.03mph

Humidity                    74.62%

Dew Point                  52.89°

Degree Days           150.85

Cooling Deg Days     72.80 

Barometer            1020.04 mb

Red= record high since 1998

Blue= record low since 1998

20 Year Avg.

High Temp      70.06°

Low Temp       52.93°

Avg. Temp       61.50°

Precip.               3.70”

Snow                    --

High Gust         16.54mph

Humidity           76.34%

Dew Point         52.90°

Degree Days       145.37

Cooling Days       40.25


(avg 1998-2017)

September Notes...

    This was the coolest September since 2014, yet it was above the 20 year average.  This illustrates the difference between short term and long term trends. Grabbed the September chart from my folder of info for the 20 year summary.


The skinny blue bar on the right of the chart is this September for perspective.

Explanation of the chart lines the left line (purple) of 61.30° is the average Sept temp for the first decade (’98-’07). The right line (red) of 61.69° is the average temp for the second decade (’08-’17).  The thicker green line it the moving average, which starts at the third year in.

    Final note on the temps. September is not one of the four months that screamed when doing all the 20 year charts.  If every other month showed no trend above a tenth of a degree then September would simply be a conversation topic about why the trend is up about .4° between decades.  However when the final posting is done in the 20 year summary (temperature)...well...sometimes actual data still does not allow science to make the point over talking heads on radio and tv.

    There were four warm records set (2 record highs and 2 record warm low temps).  No new cold records were set (record lows and cool high temps.)

    On the record calm average high wind gust. It did seem calm, which would also show in the record high barometer. No strong low pressure systems came through which are windy.  From what I remember some of the major rain dumpers were more frontal squeeze-outs.

    The above average rainfall was nice to see.

  


September Rankings

(out of 21):


High Temp  8th

Low Temp 9th

Avg Temp 7th

Precip  8th

Snow --

Avg Top Wind 21st

Humidity  12th

Dew Point 11th

Degree Days  10th

Cooling Days  4th

Barometer 1st (out of 15)



-Ev

 

Daily Data

High Temp              89.7° (9/3)

Low Temp               40.2° (9/24)

Top Rain Storm      1.81" (9/10-11)

High Wind Gust      26 mph (9/22)

Lowest Windchill   N/A

High Dew Point      73.5° (8/2)     

Low Dew Point       22.9° (9/24)

Barometer  H/L      1036.9/1003.4

Precipitation Days    9