December weather forecastDerrick City, PA
December
Weather in December
December, the first month of the winter in Derrick City, is still a cold month, with an average temperature ranging between max 33.8°F (1°C) and min 23.9°F (-4.5°C).Temperature
As December begins, there is a decrease in the average high-temperature, falling from a chilly 43.5°F (6.4°C) in November to a cold 33.8°F (1°C). In Derrick City, the nighttime temperature averages to a freezing cold 23.9°F (-4.5°C) during December.Humidity
The average relative humidity in December is 88%.Rainfall
In Derrick City, in December, it is raining for 8.9 days, with typically 2.52" (64mm) of accumulated precipitation. In Derrick City, during the entire year, the rain falls for 168.9 days and collects up to 30" (762mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. In December, it is snowing for 18.8 days. Throughout December, 9.25" (235mm) of snow is accumulated. In Derrick City, during the entire year, snow falls for 92.6 days and aggregates up to 43.58" (1107mm) of snow.Daylight
The month with the shortest days is December, with an average of 9h and 12min of daylight.On the first day of December, sunrise is at 7:23 am and sunset at 4:43 pm. On the last day of the month, sunrise is at 7:42 am and sunset at 4:53 pm EST.
Sunshine
In Derrick City, the average sunshine in December is 2.5h.UV index
The months with the lowest UV index are January, February and December, with an average maximum UV index of 1. A UV Index estimate of 2, and below, represents a minimal health hazard from exposure to the Sun's UV rays for ordinary individuals.Note: In December, the maximum UV index of 1 suggests these recommendations:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes. Take to heart! Snow reflection can almost magnify the Sun's UV radiation twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Derrick City, PA
- Average high temperature in December: 33.8°F
The warmest month (with the highest average high temperature) is July (78.4°F).
The month with the lowest average high temperature is January (27.9°F).
- Average low temperature in December: 23.9°F
The month with the highest average low temperature is July (55.9°F).
The coldest month (with the lowest average low temperature) is January (15.8°F).
Average pressure in December
Derrick City, PA
- Average pressure in December: 30.08"Hg
The month with the highest atmospheric pressure is November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in December
Derrick City, PA
- Average wind speed in December: 8.9mph
The windiest month (with the highest average wind speed) is January (9.7mph).
The calmest month (with the lowest average wind speed) is August (5.8mph).
Average humidity in December
Derrick City, PA
- Average humidity in December: 88%
The months with the highest relative humidity are January and February (89%).
The months with the lowest relative humidity are May, June and July (79%).
Average rainfall in December
Derrick City, PA
- Average rainfall in December: 2.52"
The wettest month (with the highest rainfall) is April (3.35").
The driest month (with the least rainfall) is September (1.93").
Average rainfall days in December
Derrick City, PA
- Average rainfall days in December: 8.9 days
The month with the highest number of rainy days is May (18.7 days).
The month with the least rainy days is January (6.8 days).
Average snowfall in December
Derrick City, PA
- Average snowfall in December: 9.25"
The month with the highest snowfall is February (10.63").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Derrick City, PA
- Average snowfall days in December: 18.8 days
The month with the highest number of snowfall days is January (20.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Derrick City, PA
- Average daylight in December: 9h and 12min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in December: 2h and 30min
The month with the most sunshine is July (Average sunshine: 9h and 24min).
The month with the least sunshine is January (Average sunshine: 2h and 18min).
Average sunshine days in December
Derrick City, PA
- Average sunshine days in December: 7.8 days
The month with the most sunshine days is September (12.4 days).
The month with the least sunshine days is February (5.9 days).
Average UV index in December
Derrick City, PA
- Average UV index in December: 1
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January, February and December (UV index 1).
Average cloud cover in December
Derrick City, PA
- Average cloud cover in December: 77
The month with the most cloud cover is January (Cloud cover 79).
The months with the least cloud cover are July and August (Cloud cover 43).
Average visibility in December
Derrick City, PA
- Average visibility in December: 4mi
The months with the highest visibility are March, April, May, June, July, October and November (5mi).
The months with the lowest visibility are January, February, August, September and December (4mi).
