December weather forecastDauphin, PA
December
Weather in December
The first month of the winter, December, is still a cold month in Dauphin, Pennsylvania, with an average temperature fluctuating between 40.3°F (4.6°C) and 28.8°F (-1.8°C).Temperature
As December commences, the average high-temperature shows a reduction, transitioning from a frosty 49.8°F (9.9°C) in November to a cold 40.3°F (4.6°C). Dauphin experiences an average low-temperature of 28.8°F (-1.8°C) in month of December.Humidity
In December, the average relative humidity in Dauphin is 79%.Rainfall
In Dauphin, in December, during 11 rainfall days, 2.28" (58mm) of precipitation is typically accumulated. Throughout the year, there are 161.8 rainfall days, and 30.71" (780mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. In December, it is snowing for 5.5 days. Throughout December, 2.01" (51mm) of snow is accumulated. Throughout the year, there are 28.8 snowfall days, and 15.67" (398mm) of snow is accumulated.Daylight
The month with the shortest days is December, with an average of 9h and 18min of daylight.On the first day of December, sunrise is at 7:12 am and sunset at 4:42 pm. On the last day of the month, sunrise is at 7:30 am and sunset at 4:51 pm EST.
Sunshine
The average sunshine in December in Dauphin, Pennsylvania, is 4.5h.UV index
January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a minimal health hazard from unsafe exposure to UV radiation for the average person.Note: The UV index of 2 during December leads to these advisories:
While most people can stay under the sun for an hour without burning, children must always be guarded against sun exposure. When the Sun is at its strongest around midday, find shade and limit exposure. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear. Take heed! The reflection of snow can intensify the Sun's UV radiation nearly double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Dauphin, PA
- Average high temperature in December: 40.3°F
The warmest month (with the highest average high temperature) is July (83.7°F).
The month with the lowest average high temperature is January (34°F).
- Average low temperature in December: 28.8°F
The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (21.6°F).
Average pressure in December
Dauphin, PA
- Average pressure in December: 30.1"Hg
The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed in December
Dauphin, PA
- Average wind speed in December: 7.2mph
The windiest month (with the highest average wind speed) is April (7.9mph).
The calmest month (with the lowest average wind speed) is August (4.5mph).
Average humidity in December
Dauphin, PA
- Average humidity in December: 79%
The month with the highest relative humidity is February (80%).
The months with the lowest relative humidity are March and April (75%).
Average rainfall in December
Dauphin, PA
- Average rainfall in December: 2.28"
The wettest month (with the highest rainfall) is May (3.15").
The driest month (with the least rainfall) is January (2.13").
Average rainfall days in December
Dauphin, PA
- Average rainfall days in December: 11 days
The month with the highest number of rainy days is May (18.3 days).
The months with the least rainy days are January and February (8.8 days).
Average snowfall in December
Dauphin, PA
- Average snowfall in December: 2.01"
The month with the highest snowfall is January (4.57").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Dauphin, PA
- Average snowfall days in December: 5.5 days
The month with the highest number of snowfall days is January (8.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Dauphin, PA
- Average daylight in December: 9h and 18min
The month with the longest days is June (Average daylight: 15h and 0min).
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
Dauphin, PA
- Average sunshine days in December: 16 days
The month with the most sunshine days is November (18.9 days).
The month with the least sunshine days is May (10.4 days).
Average UV index in December
Dauphin, PA
- Average UV index in December: 2
The months with the highest UV index are May, June and July (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in December
Dauphin, PA
- Average cloud cover in December: 52
The months with the most cloud cover are February and December (Cloud cover 52).
The month with the least cloud cover is July (Cloud cover 32).
Average visibility in December
Dauphin, PA
- Average visibility in December: 6mi
The months with the highest visibility are March, April, June, July, August, October, November and December (6mi).
The months with the lowest visibility are January, February, May and September (5mi).
