December weather forecastBowmanstown, PA
December
Weather in December
December, the first month of the winter in Bowmanstown, is also an icy month, with an average temperature fluctuating between 27.5°F (-2.5°C) and 38.3°F (3.5°C).Temperature
Bowmanstown's progression into December involves a drop in the average high-temperature, receding from a frosty 48.2°F (9°C) in November to a cold 38.3°F (3.5°C). The average low-temperature, in December, is a freezing cold 27.5°F (-2.5°C).Humidity
In December, the average relative humidity is 82%.Rainfall
In Bowmanstown, in December, it is raining for 11.6 days, with typically 2.48" (63mm) of accumulated precipitation. Throughout the year, there are 155.1 rainfall days, and 29.45" (748mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. In Bowmanstown, in December, snow falls for 4.6 days, with typically accumulated 2.6" (66mm) of snow. Throughout the year, there are 34 snowfall days, and 16.73" (425mm) of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 9h and 18min of daylight.On the first day of the month, sunrise is at 7:08 am and sunset at 4:35 pm. On the last day of December, in Bowmanstown, sunrise is at 7:26 am and sunset at 4:45 pm EST.
Sunshine
In Bowmanstown, the average sunshine in December is 4.5h.UV index
December is the month with the lowest UV index, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a low threat to health from unprotected exposure to Sun's UV rays for the ordinary person.Note: An average UV index of 1 in December transforms into this advice:
Though extended exposure to the sun typically does not concern most people, it is crucial to always shield children, infants, and those with sensitive skin. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation. Attention! Nearly twice the Sun's UV radiation can be reflected by snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Bowmanstown, PA
- Average high temperature in December: 38.3°F
The warmest month (with the highest average high temperature) is July (81.5°F).
The month with the lowest average high temperature is January (32.5°F).
- Average low temperature in December: 27.5°F
The month with the highest average low temperature is July (61.9°F).
The coldest month (with the lowest average low temperature) is January (20.3°F).
Average pressure in December
Bowmanstown, PA
- Average pressure in December: 30.09"Hg
The month with the highest atmospheric pressure is November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in December
Bowmanstown, PA
- Average wind speed in December: 7.7mph
The windiest month (with the highest average wind speed) is March (8.3mph).
The calmest month (with the lowest average wind speed) is August (5mph).
Average humidity in December
Bowmanstown, PA
- Average humidity in December: 82%
The month with the highest relative humidity is February (83%).
The months with the lowest relative humidity are April and July (77%).
Average rainfall in December
Bowmanstown, PA
- Average rainfall in December: 2.48"
The wettest month (with the highest rainfall) is July (3.03").
The driest month (with the least rainfall) is September (1.77").
Average rainfall days in December
Bowmanstown, PA
- Average rainfall days in December: 11.6 days
The month with the highest number of rainy days is May (17.4 days).
The month with the least rainy days is January (7.6 days).
Average snowfall in December
Bowmanstown, PA
- Average snowfall in December: 2.6"
The months with the highest snowfall are January and March (4.41").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Bowmanstown, PA
- Average snowfall days in December: 4.6 days
The month with the highest number of snowfall days is February (9.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Bowmanstown, PA
- Average daylight in December: 9h and 18min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in December: 4h and 30min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 4h and 18min).
Average sunshine days in December
Bowmanstown, PA
- Average sunshine days in December: 16.9 days
The month with the most sunshine days is November (17.6 days).
The month with the least sunshine days is May (11.3 days).
Average UV index in December
Bowmanstown, PA
- Average UV index in December: 1
The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in December
Bowmanstown, PA
- Average cloud cover in December: 52
The month with the most cloud cover is February (Cloud cover 54).
The month with the least cloud cover is July (Cloud cover 35).
Average visibility in December
Bowmanstown, PA
- Average visibility in December: 5mi
The month with the highest visibility is April (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October, November and December (5mi).
