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 lowest temperatures are recorded in December, with averages reaching a high of 29.7°F (-1.3°C) and a low of 16.7°F (-8.5°C).Humidity
In Hill City, the average relative humidity in December is 84%.Rainfall
In Hill City, during December, the rain falls for 9.2 days and regularly aggregates up to 3.03" (77mm) of precipitation. Throughout the year, in Hill City, Idaho, there are 116.2 rainfall days, and 21.3" (541mm) of precipitation is accumulated.Snowfall
January through June, October through December are months with snowfall. In Hill City, in December, during 14.5 snowfall days, 17.64" (448mm) of snow is typically accumulated. In Hill City, during the entire year, snow falls for 68.7 days and aggregates up to 71.85" (1825mm) of snow.Daylight
With an average of 9h and 0min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 7:53 am and sunset at 5:05 pm. On the last day of December, in Hill City, sunrise is at 8:12 am and sunset at 5:14 pm MST.
Sunshine
In Hill City, the average sunshine in December is 5.4h.UV index
The months with the lowest UV index in Hill City are January through April, October through December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a low health risk from exposure to the Sun's UV radiation for the ordinary person.Note: In December, the maximum UV index of 2 suggests this advice:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days. Be watchful! The reflection of snow can enhance the intensity of the Sun's UV radiation nearly double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What time of the year is the coldest in Hill City?
How cold is December in Hill City?
What is the average humidity in December in Hill City?
How many days does it rain in December in Hill City?
How many days does it snow in December in Hill City?
What is the month with the shortest days in Hill City?
How many hours of daylight does Hill City have in December?
What time are sunrise and sunset in December in Hill City?
How many hours of sunshine does Hill City have in December?
When is the lowest UV index in Hill City?
How high is the UV index in December in Hill City?
Average temperature in December
Hill City, ID
- Average high temperature in December: 29.7°F
The warmest month (with the highest average high temperature) is July (82.6°F).
The month with the lowest average high temperature is December (29.7°F).
- Average low temperature in December: 16.7°F
The month with the highest average low temperature is August (56.5°F).
The coldest month (with the lowest average low temperature) is December (16.7°F).
Average pressure in December
Hill City, ID
- Average pressure in December: 30.23"Hg
The month with the highest atmospheric pressure is January (30.27"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in December
Hill City, ID
- Average wind speed in December: 5.4mph
The windiest month (with the highest average wind speed) is April (7mph).
The calmest month (with the lowest average wind speed) is January (5.3mph).
Average humidity in December
Hill City, ID
- Average humidity in December: 84%
The month with the highest relative humidity is February (86%).
The month with the lowest relative humidity is July (33%).
Average rainfall in December
Hill City, ID
- Average rainfall in December: 3.03"
The wettest month (with the highest rainfall) is February (3.07").
The driest month (with the least rainfall) is July (0.39").
Average rainfall days in December
Hill City, ID
- Average rainfall days in December: 9.2 days
The months with the highest number of rainy days are March and April (14.9 days).
The month with the least rainy days is July (5.3 days).
Average snowfall in December
Hill City, ID
- Average snowfall in December: 17.64"
The month with the highest snowfall is January (20.2").
The months with the least snowfall are July, August and September (0").
Average snowfall days in December
Hill City, ID
- Average snowfall days in December: 14.5 days
The month with the highest number of snowfall days is January (15 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in December /
Average sunshine in December
Hill City, ID
- Average daylight in December: 9h and 0min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in December: 5h and 2min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is January (Average sunshine: 5h and 18min).
Average sunshine days in December
Hill City, ID
- Average sunshine days in December: 14.5 days
The month with the most sunshine days is July (22.7 days).
The month with the least sunshine days is March (10.9 days).
Average UV index in December
Hill City, ID
- Average UV index in December: 2
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, March, April, October, November and December (UV index 2).
Average cloud cover in December
Hill City, ID
- Average cloud cover in December: 44
The month with the most cloud cover is February (Cloud cover 45).
The months with the least cloud cover are July and August (Cloud cover 9).
Average visibility in December
Hill City, ID
- Average visibility in December: 5mi
The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February and December (5mi).
Hill City, Idaho, USA
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