December Of 2025's Weather Summary Mount Joy, PA

some monthly records from my personal weather station for the month of December, 2025. This page is a work in progress.
Here are some monthly temperature stats from my weather station for the month of December.
December Minimums And Maxes
MaxLowest MaxMinimumHighest Minimum
Temperature 59.2 ℉ on 25.7 ℉ on 6.8 ℉ on 32.4 ℉ on
Dew Point 58.3 ℉ on 18.1 ℉ ℉ on 3.1 ℉ on 26.9 ℉ on
Feels Like 59.2 ℉ on 25.3 ℉ on 0.9 ℉ on 28.6 ℉ on
Monthly Temperature This image is a line graph of the average, low and high for the month of December. 120 120 ℉ 110 110 ℉ 100 100 ℉ 90 90 ℉ 80 80 ℉ 70 70 ℉ 60 60 ℉ 50 50 ℉ 40 40 ℉ 30 30 ℉ 20 20 ℉ 10 10 ℉ 0 0 ℉ -10 -10 ℉ -20 -20 ℉ 120 ℉ 110 ℉ 100 ℉ 90 ℉ 80 ℉ 70 ℉ 60 ℉ 50 ℉ 40 ℉ 30 ℉ 20 ℉ 10 ℉ 0 ℉ -10 ℉ -20 ℉ Monthly Dew Point This image is a line graph of the average, low and high for the month of December. 120 120 ℉ 110 110 ℉ 100 100 ℉ 90 90 ℉ 80 80 ℉ 70 70 ℉ 60 60 ℉ 50 50 ℉ 40 40 ℉ 30 30 ℉ 20 20 ℉ 10 10 ℉ 0 0 ℉ -10 -10 ℉ -20 -20 ℉ 120 ℉ 110 ℉ 100 ℉ 90 ℉ 80 ℉ 70 ℉ 60 ℉ 50 ℉ 40 ℉ 30 ℉ 20 ℉ 10 ℉ 0 ℉ -10 ℉ -20 ℉ Monthly Feels Like This image is a line graph of the average, low and high for the month of December. 120 120 ℉ 110 110 ℉ 100 100 ℉ 90 90 ℉ 80 80 ℉ 70 70 ℉ 60 60 ℉ 50 50 ℉ 40 40 ℉ 30 30 ℉ 20 20 ℉ 10 10 ℉ 0 0 ℉ -10 -10 ℉ -20 -20 ℉ 120 ℉ 110 ℉ 100 ℉ 90 ℉ 80 ℉ 70 ℉ 60 ℉ 50 ℉ 40 ℉ 30 ℉ 20 ℉ 10 ℉ 0 ℉ -10 ℉ -20 ℉
  • It stayed below freezing on 4 days this month.
  • It dropped below freezing on 31 days this month.
  • It did not get above 90 ℉ during December.
  • There were 1085 heating degree during the month of December.
  • The narrowest temperature range was 4.5℉ on and the widest temperature range was on 33.5℉ on .
Here are some monthly wind stats from my weather station for the month of December.
  • The windiest day of the month was on when the wind averaged 57 mph
  • 7.4 mph was the lowest average wind during this and it occurred on .
  • The highest wind gust this month was 79.6 mph on
  • The lowest wind gust this month was 8.7 mph on .
Here are some monthly lightning stats from my weather station for the month of December
  • We had lighting on 8 days during the month of December.
  • The most lightning strikes in a day this month was 2 on .
  • The most lightning strikes in an an hour this month was 2 on .
Here are some monthly rain stats from my weather station for the month of December
  • There were 8 days this month when we had rain.
  • The daily maximum rainfall this month was 255.9 ″ on .
  • The wettest period was 4 days that ended on .
  • The Driest period lasted 9 days that ended on .
  • December's monthly rainfall was 331.96 inches.
  • The heaviest rain rate was 29.57 ″ on .
Monthly Rain This image is a line graph of the rainfall for the month of December. 20 20 Inches Of Rain18 18 Inches Of Rain16 16 Inches Of Rain14 14 Inches Of Rain12 12 Inches Of Rain10 10 Inches Of Rain8 8 Inches Of Rain6 6 Inches Of Rain4 4 Inches Of Rain2 2 Inches Of Rain0 0 Inches Of Rain 20 Inches Of Rain 18 Inches Of Rain 16 Inches Of Rain 14 Inches Of Rain 12 Inches Of Rain 10 Inches Of Rain 8 Inches Of Rain 6 Inches Of Rain 4 Inches Of Rain 2 Inches Of Rain 0 Inches Of Rain
Here are some monthly barometric pressure stats from my weather station for the month of December
  • The barometric pressure ranged from a low of 29.44 inches of mercury on to a high of 30.65 inches of mercury on .
Monthly Presure This image is a line graph of the average, low and high for the month of December. 31.50 31.50 Inches Of Mercury31.25 31.25 Inches Of Mercury31.00 31.00 Inches Of Mercury30.75 30.75 Inches Of Mercury30.50 30.50 Inches Of Mercury30.25 30.25 Inches Of Mercury30.00 30.00 Inches Of Mercury29.75 29.75 Inches Of Mercury29.50 29.50 Inches Of Mercury29.25 29.25 Inches Of Mercury29.00 29.00 Inches Of Mercury28.75 28.75 Inches Of Mercury28.50 28.50 Inches Of Mercury 31.50 Inches Of Mercury 31.25 Inches Of Mercury 31.00 Inches Of Mercury 30.75 Inches Of Mercury 30.50 Inches Of Mercury 30.25 Inches Of Mercury 30.00 Inches Of Mercury 29.75 Inches Of Mercury 29.50 Inches Of Mercury 29.25 Inches Of Mercury 29.00 Inches Of Mercury 28.75 Inches Of Mercury 28.50 Inches Of Mercury
Here are some monthly humidity stats from my weather station for the month of December
  • The lowest humidiy recorded during December was 36% on .