December weather forecastHeartwell, NE
December
Weather in December
The first month of the winter, December, is still a cold month in Heartwell, Nebraska, with an average temperature fluctuating between 23°F (-5°C) and 37.2°F (2.9°C).Temperature
Heartwell's December weather comes with a decrease in average high-temperatures, moving from a fresh 50.9°F (10.5°C) in November to an icy 37.2°F (2.9°C). Throughout December nights, Heartwell experiences a consistent temperature average of 23°F (-5°C).Humidity
In December, the average relative humidity is 72%.Rainfall
In Heartwell, in December, it is raining for 3.1 days, with typically 1.02" (26mm) of accumulated precipitation. Throughout the year, there are 105.4 rainfall days, and 18.7" (475mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall in Heartwell. The month with the most snowfall in Heartwell is December, when snow falls for 3.8 days and typically aggregates up to 2.48" (63mm) of snow.Daylight
With an average of 9h and 18min of daylight, December has the shortest days of the year in Heartwell, Nebraska.On the first day of December in Heartwell, sunrise is at 7:40 am and sunset at 5:08 pm. On the last day of the month, sunrise is at 7:58 am and sunset at 5:18 pm CST.
Sunshine
December has the least sunshine of the year in Heartwell, with an average of 5.6h of sunshine.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 reading of 2, and below, represents a minimal health hazard from exposure to the Sun's UV radiation for ordinary individuals.Note: The maximum UV index of 2 during December translates into these guidelines:
Long-term sun exposure is typically not a concern for most. However, those with sensitive skin, infants, and children must always have protection. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses. Consider carefully! The reflective quality of snow can almost double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Heartwell, NE
- Average high temperature in December: 37.2°F
The warmest month (with the highest average high temperature) is July (88.2°F).
The month with the lowest average high temperature is January (35.1°F).
- Average low temperature in December: 23°F
The month with the highest average low temperature is July (66.6°F).
The coldest month (with the lowest average low temperature) is January (20.5°F).
Average pressure in December
Heartwell, NE
- Average pressure in December: 30.14"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
Heartwell, NE
- Average wind speed in December: 10.5mph
The windiest month (with the highest average wind speed) is April (12.1mph).
The calmest month (with the lowest average wind speed) is July (8.6mph).
Average humidity in December
Heartwell, NE
- Average humidity in December: 72%
The month with the highest relative humidity is January (76%).
The month with the lowest relative humidity is October (60%).
Average rainfall in December
Heartwell, NE
- Average rainfall in December: 1.02"
The wettest month (with the highest rainfall) is May (3.23").
The driest month (with the least rainfall) is January (0.39").
Average rainfall days in December
Heartwell, NE
- Average rainfall days in December: 3.1 days
The month with the highest number of rainy days is May (15.3 days).
The month with the least rainy days is February (1.4 days).
Average snowfall in December
Heartwell, NE
- Average snowfall in December: 2.48"
The month with the highest snowfall is December (2.48").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Heartwell, NE
- Average snowfall days in December: 3.8 days
The month with the highest number of snowfall days is February (5.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Heartwell, NE
- Average daylight in December: 9h and 18min
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 36min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 5h and 36min).
Average sunshine days in December
Heartwell, NE
- Average sunshine days in December: 24.2 days
The month with the most sunshine days is January (24.4 days).
The month with the least sunshine days is June (12.8 days).
Average UV index in December
Heartwell, 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
Heartwell, NE
- Average cloud cover in December: 37
The month with the most cloud cover is February (Cloud cover 40).
The month with the least cloud cover is July (Cloud cover 25).
Average visibility in December
Heartwell, 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).
