December Of 2021's Weather Summary Mount Joy, PA

some monthly records from my personal weather station for the month of December, 2021. 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 66.9 ℉ on It is 2021-12-11 36 ℉ on It is 2021-12-27 18.1 ℉ on It is 2021-12-20 44.6 ℉ on It is 2021-12-31
Dew Point 57.4 ℉ on It is 2021-12-11 21.3 ℉ ℉ on It is 2021-12-20 10.8 ℉ on It is 2021-12-22 44.1 ℉ onIt is 2021-12-31
Feels Like 66.9 ℉ on It is 2021-12-11 36 ℉ onIt is 2021-12-27 12.9 ℉ on It is 2021-12-20 43 ℉ on It is 2021-12-31
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 ℉ 1Wednesday, December 1, 2021 2Thursday, December 2, 2021 3Friday, December 3, 2021 4Saturday, December 4, 2021 5Sunday, December 5, 2021 6Monday, December 6, 2021 7Tuesday, December 7, 2021 8Wednesday, December 8, 2021 9Thursday, December 9, 2021 10Friday, December 10, 2021 11Saturday, December 11, 2021 12Sunday, December 12, 2021 13Monday, December 13, 2021 14Tuesday, December 14, 2021 15Wednesday, December 15, 2021 16Thursday, December 16, 2021 17Friday, December 17, 2021 18Saturday, December 18, 2021 19Sunday, December 19, 2021 20Monday, December 20, 2021 21Tuesday, December 21, 2021 22Wednesday, December 22, 2021 23Thursday, December 23, 2021 24Friday, December 24, 2021 25Saturday, December 25, 2021 26Sunday, December 26, 2021 27Monday, December 27, 2021 28Tuesday, December 28, 2021 29Wednesday, December 29, 2021 30Thursday, December 30, 2021 31Friday, December 31, 2021 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 ℉ 1Wednesday, December 1, 2021 2Thursday, December 2, 2021 3Friday, December 3, 2021 4Saturday, December 4, 2021 5Sunday, December 5, 2021 6Monday, December 6, 2021 7Tuesday, December 7, 2021 8Wednesday, December 8, 2021 9Thursday, December 9, 2021 10Friday, December 10, 2021 11Saturday, December 11, 2021 12Sunday, December 12, 2021 13Monday, December 13, 2021 14Tuesday, December 14, 2021 15Wednesday, December 15, 2021 16Thursday, December 16, 2021 17Friday, December 17, 2021 18Saturday, December 18, 2021 19Sunday, December 19, 2021 20Monday, December 20, 2021 21Tuesday, December 21, 2021 22Wednesday, December 22, 2021 23Thursday, December 23, 2021 24Friday, December 24, 2021 25Saturday, December 25, 2021 26Sunday, December 26, 2021 27Monday, December 27, 2021 28Tuesday, December 28, 2021 29Wednesday, December 29, 2021 30Thursday, December 30, 2021 31Friday, December 31, 2021 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 ℉ 1Wednesday, December 1, 2021 2Thursday, December 2, 2021 3Friday, December 3, 2021 4Saturday, December 4, 2021 5Sunday, December 5, 2021 6Monday, December 6, 2021 7Tuesday, December 7, 2021 8Wednesday, December 8, 2021 9Thursday, December 9, 2021 10Friday, December 10, 2021 11Saturday, December 11, 2021 12Sunday, December 12, 2021 13Monday, December 13, 2021 14Tuesday, December 14, 2021 15Wednesday, December 15, 2021 16Thursday, December 16, 2021 17Friday, December 17, 2021 18Saturday, December 18, 2021 19Sunday, December 19, 2021 20Monday, December 20, 2021 21Tuesday, December 21, 2021 22Wednesday, December 22, 2021 23Thursday, December 23, 2021 24Friday, December 24, 2021 25Saturday, December 25, 2021 26Sunday, December 26, 2021 27Monday, December 27, 2021 28Tuesday, December 28, 2021 29Wednesday, December 29, 2021 30Thursday, December 30, 2021 31Friday, December 31, 2021
  • It did not stay below freezing this month.
  • It dropped below freezing on 18 days this month.
  • It did not get above 90 ℉ during December.
  • There were 745 heating degree during the month of December.
  • The narrowest temperature range was 5.6℉ on It is 2021-12-27 and the widest temperature range was on 31.5℉ on It is 2021-12-13.
Here are some monthly wind stats from my weather station for the month of December.
  • The windiest day of the month was on It is 2021-12-02 when the wind averaged 23.5 mph
  • 5.8 mph was the lowest average wind during this and it occurred on It is 2021-12-25.
  • The highest wind gust this month was 38.9 mph on It is 2021-12-11
  • The lowest wind gust this month was 7.4 mph on It is 2021-12-30.
Here are some monthly lightning stats from my weather station for the month of December
  • We had lighting on 1 day during the month of December.
  • The most lightning strikes in a day this month was 1 on It is 2021-12-12.
  • The most lightning strikes in an an hour this month was 1 on It is 2021-12-12.
Here are some monthly rain stats from my weather station for the month of December
  • There were 12 days this month when we had rain.
  • The daily maximum rainfall this month was 0.3 ″ on It is 2021-12-25.
  • The wettest period was 4 days that ended on It is 2021-12-30.
  • The Driest period lasted 6 days that ended on It is 2021-12-17.
  • December's monthly rainfall was 0.83 inches.
  • The heaviest rain rate was 0.8 ″ on It is 2021-12-25.
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 1December 12December 23December 34December 45December 56December 67December 78December 89December 910December 1011December 1112December 1213December 1314December 1415December 1516December 1617December 1718December 1819December 1920December 2021December 2122December 2223December 2324December 2425December 2526December 2627December 2728December 2829December 2930December 3031December 31
Here are some monthly barometric pressure stats from my weather station for the month of December
  • The barometric pressure ranged from a low of 29.51 inches of mercury on It is 2021-12-25 to a high of 30.64 inches of mercury on It is 2021-12-15.
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 1Wednesday, December 1, 2021 12Thursday, December 2, 2021 23Friday, December 3, 2021 34Saturday, December 4, 2021 45Sunday, December 5, 2021 56Monday, December 6, 2021 67Tuesday, December 7, 2021 78Wednesday, December 8, 2021 89Thursday, December 9, 2021 910Friday, December 10, 2021 1011Saturday, December 11, 2021 1112Sunday, December 12, 2021 1213Monday, December 13, 2021 1314Tuesday, December 14, 2021 1415Wednesday, December 15, 2021 1516Thursday, December 16, 2021 1617Friday, December 17, 2021 1718Saturday, December 18, 2021 1819Sunday, December 19, 2021 1920Monday, December 20, 2021 2021Tuesday, December 21, 2021 2122Wednesday, December 22, 2021 2223Thursday, December 23, 2021 2324Friday, December 24, 2021 2425Saturday, December 25, 2021 2526Sunday, December 26, 2021 2627Monday, December 27, 2021 2728Tuesday, December 28, 2021 2829Wednesday, December 29, 2021 2930Thursday, December 30, 2021 3031Friday, December 31, 2021 31
Here are some monthly humidity stats from my weather station for the month of December
  • The lowest humidiy recorded during December was 21% on It is 2021-12-13.