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
The commencement of December involves a temperature shift, with the average high-temperature dropping from a fresh 50.5°F (10.3°C) in November to an icy 36.9°F (2.7°C). Throughout the nights in December, an average low-temperature of 23°F (-5°C) is noted in Grafton.Humidity
In Grafton, the average relative humidity in December is 74%.Rainfall
In Grafton, in December, during 2.8 rainfall days, 0.43" (11mm) of precipitation is typically accumulated. In Grafton, during the entire year, the rain falls for 80.5 days and collects up to 8.03" (204mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. In December, in Grafton, it is snowing for 3.2 days. Throughout December, 0.43" (11mm) of snow is accumulated. In Grafton, during the entire year, snow falls for 17.2 days and aggregates up to 3.5" (89mm) of snow.Daylight
The month with the shortest days is December, with an average of 9h and 18min of daylight.On the first day of the month, sunrise is at 7:35 am and sunset at 5:04 pm. On the last day of December, sunrise is at 7:54 am and sunset at 5:13 pm CST.
Sunshine
In December, the average sunshine is 5.4h.UV index
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a minimal health hazard from unsafe exposure to UV radiation for ordinary individuals.Note: The maximum UV index of 2 during December translates into these guidelines:
Prolonged exposure to sunlight rarely troubles the majority, but constant protection is vital for babies, children, and fair-skinned people. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage. Foresee this! The reflection from snow can nearly double the intensity of UV radiation from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is December?
What is the average humidity in December in Grafton?
How much does it rain in December?
How many days does it snow in December?
What is the month with the shortest days?
What is the average length of the day in December in Grafton?
When is the sunrise / sunset in December?
How many hours of sunshine does Grafton have in December?
What are the months with the lowest UV index in Grafton?
How high is the UV index in December?
Average temperature in December
Grafton, NE
- Average high temperature in December: 36.9°F
The warmest month (with the highest average high temperature) is July (86.7°F).
The month with the lowest average high temperature is January (33.4°F).
- Average low temperature in December: 23°F
The month with the highest average low temperature is July (66.7°F).
The coldest month (with the lowest average low temperature) is January (19°F).
Average pressure in December
Grafton, NE
- Average pressure in December: 30.13"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).
Average wind speed in December
Grafton, NE
- Average wind speed in December: 10.4mph
The windiest month (with the highest average wind speed) is April (11.6mph).
The calmest month (with the lowest average wind speed) is July (8mph).
Average humidity in December
Grafton, NE
- Average humidity in December: 74%
The month with the highest relative humidity is January (77%).
The month with the lowest relative humidity is October (62%).
Average rainfall in December
Grafton, NE
- Average rainfall in December: 0.43"
The wettest months (with the highest rainfall) are May and June (1.26").
The driest month (with the least rainfall) is February (0.2").
Average rainfall days in December
Grafton, NE
- Average rainfall days in December: 2.8 days
The month with the highest number of rainy days is May (10.8 days).
The months with the least rainy days are January and February (1.9 days).
Average snowfall in December
Grafton, NE
- Average snowfall in December: 0.43"
The month with the highest snowfall is January (1.02").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Grafton, NE
- Average snowfall days in December: 3.2 days
The month with the highest number of snowfall days is February (5.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Grafton, NE
- Average daylight in December: 9h and 2min
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: 5h and 2min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 5h and 12min).
Average sunshine days in December
Grafton, NE
- Average sunshine days in December: 25.6 days
The months with the most sunshine days are January and December (25.6 days).
The month with the least sunshine days is June (16.3 days).
Average UV index in December
Grafton, NE
- Average UV index in December: 2
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in December
Grafton, NE
- Average cloud cover in December: 40
The months with the most cloud cover are January and March (Cloud cover 43).
The month with the least cloud cover is July (Cloud cover 25).
Average visibility in December
Grafton, 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).
Grafton, Nebraska, USA
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