December weather forecastWyoming, DE
December
Weather in December
December ushers in the winter season in full throttle, given the significant drop in temperature and daylight hours. December brings about considerable changes with the return of more snowfall, amounting to 0.51" (13mm), after having none in November. Shorter daylight hours and falling temperatures are balanced by the increase in sunshine hours. The winter wind speed and gusts remain relatively constant, contributing to the cold weather conditions. Despite these changes, a steady visibility of six miles and moderate humidity levels are maintained, providing fair winter weather conditions.Temperature
As December begins in Wyoming, Delaware, there is a minor decrease in the average high-temperature, softly falling from a fresh 54.3°F (12.4°C) in November to a frosty 46.2°F (7.9°C). Wyoming's nights in December experience an average temperature drop to a wintry 35.6°F (2°C).Humidity
The average relative humidity in December in Wyoming is 76%.Rainfall
In Wyoming, during December, the rain falls for 10.5 days and regularly aggregates up to 2.09" (53mm) of precipitation. Throughout the year, in Wyoming, there are 152.3 rainfall days, and 26.3" (668mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through March and December. December is the first month it typically snows in Wyoming. Throughout December, in the average 1.7 snowfall days, it receives 0.51" (13mm) of snow. Throughout the year, there are 10.1 snowfall days, and 4.61" (117mm) of snow is accumulated.Daylight
The month with the shortest days is December, with an average of 9h and 30min of daylight.On the first day of December in Wyoming, sunrise is at 7:03 am and sunset at 4:40 pm. On the last day of the month, sunrise is at 7:21 am and sunset at 4:49 pm EST.
Sunshine
In Wyoming, the average sunshine in December is 5.2h.UV index
January and December, with an average maximum UV index of 2, are months with the lowest UV index in Wyoming. A UV Index of 2, and less, symbolizes a low health risk from unsafe exposure to UV radiation for the ordinary person.Note: An average maximum UV index of 2 in December leads to these recommendations:
Prolonged sun exposure generally does not trouble most people. However, it is vital to ensure protection for babies, children, and individuals with sensitive skin. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes. Take into account! The reflection from snow can nearly double the Sun's UV radiation intensity.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Wyoming, DE
- Average high temperature in December: 46.2°F
The warmest month (with the highest average high temperature) is July (84.2°F).
The month with the lowest average high temperature is January (39.7°F).
- Average low temperature in December: 35.6°F
The month with the highest average low temperature is July (70°F).
The coldest month (with the lowest average low temperature) is January (28.8°F).
Average pressure in December
Wyoming, DE
- Average pressure in December: 30.1"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
Wyoming, DE
- Average wind speed in December: 9.3mph
The windiest month (with the highest average wind speed) is February (10.1mph).
The calmest month (with the lowest average wind speed) is August (6.4mph).
Average humidity in December
Wyoming, DE
- Average humidity in December: 76%
The month with the highest relative humidity is May (79%).
The months with the lowest relative humidity are January, March, April and November (74%).
Average rainfall in December
Wyoming, DE
- Average rainfall in December: 2.09"
The wettest month (with the highest rainfall) is August (3.15").
The driest month (with the least rainfall) is January (1.46").
Average rainfall days in December
Wyoming, DE
- Average rainfall days in December: 10.5 days
The month with the highest number of rainy days is July (17.6 days).
The month with the least rainy days is November (8.1 days).
Average snowfall in December
Wyoming, DE
- Average snowfall in December: 0.51"
The month with the highest snowfall is January (1.65").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in December
Wyoming, DE
- Average snowfall days in December: 1.7 days
The month with the highest number of snowfall days is January (3.5 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).
Average daylight in December /
Average sunshine in December
Wyoming, DE
- Average daylight in December: 9h and 30min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in December: 5h and 12min
The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 5h and 0min).
Average sunshine days in December
Wyoming, DE
- Average sunshine days in December: 18.4 days
The month with the most sunshine days is November (20.5 days).
The month with the least sunshine days is July (10.8 days).
Average UV index in December
Wyoming, DE
- Average UV index in December: 2
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January and December (UV index 2).
Average cloud cover in December
Wyoming, DE
- Average cloud cover in December: 45
The month with the most cloud cover is March (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 28).
Average visibility in December
Wyoming, DE
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
