December weather forecastHyannis, NE
December
Weather in December
December, the first month of the winter in Hyannis, is also an icy month, with an average temperature fluctuating between 34.2°F (1.2°C) and 20.3°F (-6.5°C).Temperature
Hyannis notes the coldest temperatures in December, with a high average of 34.2°F (1.2°C) and a low of 20.3°F (-6.5°C).Humidity
In Hyannis, the average relative humidity in December is 71%.Rainfall
In Hyannis, in December, during 3.1 rainfall days, 0.63" (16mm) of precipitation is typically accumulated. In Hyannis, during the entire year, the rain falls for 108.7 days and collects up to 15.79" (401mm) of precipitation.Snowfall
January through May, September through December are months with snowfall. In Hyannis, during December, snow falls for 7.6 days and regularly aggregates up to 2.24" (57mm) of snow. In Hyannis, during the entire year, snow falls for 42.1 days and aggregates up to 17.2" (437mm) 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 the month, sunrise is at 6:56 am and sunset at 4:16 pm. On the last day of December, sunrise is at 7:14 am and sunset at 4:25 pm MST.
Sunshine
In December, the average sunshine 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 value of 2, and less, symbolizes a low health risk from unprotected exposure to Sun's UV rays for the average person.Note: The maximum daily UV index of 2 in December interprets into the following recommendations:
While many people can endure lengthy sun exposure, it remains imperative to safeguard babies, children, and fair-skinned individuals. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. Employ a hat with a wide brim for robust protection, cutting UV exposure by half. Bear in mind! The Sun's UV radiation can nearly double in intensity due to the reflective quality of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Hyannis, NE
- Average high temperature in December: 34.2°F
The warmest month (with the highest average high temperature) is July (86.7°F).
The month with the lowest average high temperature is December (34.2°F).
- Average low temperature in December: 20.3°F
The month with the highest average low temperature is July (64.8°F).
The coldest months (with the lowest average low temperature) are January and December (20.3°F).
Average pressure in December
Hyannis, NE
- Average pressure in December: 30.11"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).
Average wind speed in December
Hyannis, NE
- Average wind speed in December: 11.4mph
The windiest month (with the highest average wind speed) is April (12.9mph).
The calmest month (with the lowest average wind speed) is August (10.1mph).
Average humidity in December
Hyannis, NE
- Average humidity in December: 71%
The month with the highest relative humidity is January (73%).
The month with the lowest relative humidity is August (49%).
Average rainfall in December
Hyannis, NE
- Average rainfall in December: 0.63"
The wettest month (with the highest rainfall) is May (3.19").
The driest month (with the least rainfall) is January (0.35").
Average rainfall days in December
Hyannis, NE
- Average rainfall days in December: 3.1 days
The month with the highest number of rainy days is May (15.7 days).
The month with the least rainy days is December (3.1 days).
Average snowfall in December
Hyannis, NE
- Average snowfall in December: 2.24"
The month with the highest snowfall is February (3.27").
The months with the least snowfall are June, July and August (0").
Average snowfall days in December
Hyannis, NE
- Average snowfall days in December: 7.6 days
The month with the highest number of snowfall days is February (8.8 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in December /
Average sunshine in December
Hyannis, NE
- 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: 6h and 6min
The month with the most sunshine is August (Average sunshine: 11h and 42min).
The month with the least sunshine is February (Average sunshine: 5h and 54min).
Average sunshine days in December
Hyannis, NE
- Average sunshine days in December: 21.1 days
The month with the most sunshine days is November (21.5 days).
The month with the least sunshine days is July (12 days).
Average UV index in December
Hyannis, 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
Hyannis, NE
- Average cloud cover in December: 34
The month with the most cloud cover is February (Cloud cover 38).
The month with the least cloud cover is August (Cloud cover 17).
Average visibility in December
Hyannis, 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).
