Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
December is the month when Keystone, Nebraska, sees the lowest average temperatures, with a high of 37.4°F (3°C) and a low of 22.3°F (-5.4°C).Humidity
In Keystone, the average relative humidity in December is 68%.Rainfall
In Keystone, in December, during 3.8 rainfall days, 0.63" (16mm) of precipitation is typically accumulated. In Keystone, during the entire year, the rain falls for 117.3 days and collects up to 17.28" (439mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. In December, in Keystone, it is snowing for 6.3 days. Throughout December, 3.07" (78mm) of snow is accumulated. In Keystone, during the entire year, snow falls for 35 days and aggregates up to 14.65" (372mm) of snow.Daylight
The month with the shortest days in Keystone is December, with an average of 9h and 18min of daylight.On the first day of the month, sunrise is at 6:53 am and sunset at 4:18 pm. On the last day of December, in Keystone, sunrise is at 7:11 am and sunset at 4:27 pm MST.
Sunshine
In December, the average sunshine in Keystone is 6.1h.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index reading of 2, and below, represents a minimal health hazard from unsafe exposure to UV radiation for the ordinary person.Note: The daily high UV index of 2 in December translates into this advice:
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 peaks around mid-day, so it's wise to limit exposure to the Sun at this time. Boost your sun resistance with garments that are densely woven yet spacious. Heads up! The UV radiation from the Sun can almost be doubled by snow reflection.
Frequently asked questions
What are the coldest months in Keystone?
How cold is December in Keystone?
What is the average humidity in December in Keystone?
How much does it rain in Keystone in December?
How many days does it snow in December in Keystone?
What is the month with the shortest days in Keystone?
What is the average length of the day in December in Keystone?
What time are sunrise and sunset in December in Keystone?
How many hours of sunshine does Keystone have in December?
What is the month with the lowest UV index in Keystone?
What is the UV index intensity in December in Keystone?
Average temperature in December
Keystone, NE
- Average high temperature in December: 37.4°F
The warmest month (with the highest average high temperature) is July (88.3°F).
The month with the lowest average high temperature is December (37.4°F).
- Average low temperature in December: 22.3°F
The month with the highest average low temperature is July (65.8°F).
The coldest months (with the lowest average low temperature) are January and December (22.3°F).
Average pressure in December
Keystone, NE
- Average pressure in December: 30.12"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.83"Hg).
Average wind speed in December
Keystone, NE
- Average wind speed in December: 10.7mph
The windiest month (with the highest average wind speed) is April (12.6mph).
The calmest month (with the lowest average wind speed) is August (9.6mph).
Average humidity in December
Keystone, NE
- Average humidity in December: 68%
The month with the highest relative humidity is January (70%).
The month with the lowest relative humidity is September (53%).
Average rainfall in December
Keystone, NE
- Average rainfall in December: 0.63"
The wettest month (with the highest rainfall) is May (3.39").
The driest month (with the least rainfall) is January (0.39").
Average rainfall days in December
Keystone, NE
- Average rainfall days in December: 3.8 days
The month with the highest number of rainy days is May (17 days).
The month with the least rainy days is December (3.8 days).
Average snowfall in December
Keystone, NE
- Average snowfall in December: 3.07"
The month with the highest snowfall is February (3.23").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Keystone, NE
- Average snowfall days in December: 6.3 days
The month with the highest number of snowfall days is February (8.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Keystone, NE
- Average daylight in December: 9h and 2min
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: 6h and 1min
The months with the most sunshine are July and August (Average sunshine: 11h and 24min).
The month with the least sunshine is February (Average sunshine: 6h and 0min).
Average sunshine days in December
Keystone, NE
- Average sunshine days in December: 21.9 days
The month with the most sunshine days is November (22.7 days).
The months with the least sunshine days are May and June (10.6 days).
Average UV index in December
Keystone, NE
- Average UV index in December: 2
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in December
Keystone, NE
- Average cloud cover in December: 32
The month with the most cloud cover is February (Cloud cover 36).
The months with the least cloud cover are July, August and September (Cloud cover 20).
Average visibility in December
Keystone, NE
- 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).
Keystone, Nebraska, USA
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