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 start of December signals a decrease in the average high-temperature, transitioning from a cold 38.3°F (3.5°C) in November to a subzero cold 24.6°F (-4.1°C). Opheim's average low-temperature in December is measured at an extreme cold 12.7°F (-10.7°C).Humidity
The average relative humidity in December is 84%.Rainfall
In Opheim, Montana, during December, the rain falls for 3 days and regularly aggregates up to 0.43" (11mm) of precipitation. Throughout the year, there are 90.8 rainfall days, and 11.1" (282mm) of precipitation is accumulated.Snowfall
Months with snowfall in Opheim, Montana, are January through May, October through December. December is the month with the most snowfall. Snow falls for 8.6 days and accumulates 2.6" (66mm) of snow.Daylight
With an average of 8h and 18min of daylight, December has the shortest days of the year in Opheim.On the first day of December in Opheim, sunrise is at 7:38 am and sunset at 4:11 pm. On the last day of the month, sunrise is at 7:58 am and sunset at 4:19 pm MST.
Sunshine
The average sunshine in December in Opheim is 4.9h.UV index
The month with the lowest UV index is December, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a minimal health vulnerability from unsafe exposure to UV radiation for the ordinary person.Note: The maximum daily UV index of 1 in December interprets into the following recommendations:
While most people can stay under the sun for an hour without burning, children must always be guarded against sun exposure. To avoid the Sun's strongest rays, limit exposure around the mid-day period. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses. Be informed! The Sun's UV radiation can be nearly doubled due to the reflection from snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is it in Opheim in December?
What is the average humidity in December in Opheim?
How much does it rain in Opheim in December?
What is the snowiest month in Opheim?
How many days does it snow in December in Opheim?
What is the month with the shortest days in Opheim?
What is the average length of the day in December in Opheim?
What time are sunrise and sunset in December in Opheim?
How long on average sun shines in December in Opheim?
What is the month with the lowest UV index in Opheim?
What is the UV index intensity in December in Opheim?
Average temperature in December
Opheim, MT
- Average high temperature in December: 24.6°F
The warmest month (with the highest average high temperature) is July (83.1°F).
The month with the lowest average high temperature is February (23.7°F).
- Average low temperature in December: 12.7°F
The month with the highest average low temperature is July (63.3°F).
The coldest month (with the lowest average low temperature) is February (10.2°F).
Average pressure in December
Opheim, MT
- Average pressure in December: 30.13"Hg
The month with the highest atmospheric pressure is February (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.83"Hg).
Average wind speed in December
Opheim, MT
- Average wind speed in December: 9.3mph
The windiest month (with the highest average wind speed) is April (11.7mph).
The calmest month (with the lowest average wind speed) is February (8.8mph).
Average humidity in December
Opheim, MT
- Average humidity in December: 84%
The month with the highest relative humidity is January (86%).
The month with the lowest relative humidity is August (42%).
Average rainfall in December
Opheim, MT
- Average rainfall in December: 0.43"
The wettest month (with the highest rainfall) is June (2.01").
The driest months (with the least rainfall) are January and February (0.35").
Average rainfall days in December
Opheim, MT
- Average rainfall days in December: 3 days
The month with the highest number of rainy days is May (13.8 days).
The month with the least rainy days is February (2.3 days).
Average snowfall in December
Opheim, MT
- Average snowfall in December: 2.6"
The month with the highest snowfall is December (2.6").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Opheim, MT
- Average snowfall days in December: 8.6 days
The month with the highest number of snowfall days is February (9.2 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in December /
Average sunshine in December
Opheim, MT
- Average daylight in December: 8h and 2min
The month with the longest days is June (Average daylight: 16h and 6min).
The month with the shortest days is December (Average daylight: 8h and 18min).
- Average sunshine in December: 4h and 5min
The month with the most sunshine is July (Average sunshine: 11h and 48min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).
Average sunshine days in December
Opheim, MT
- Average sunshine days in December: 20.4 days
The month with the most sunshine days is November (21.5 days).
The month with the least sunshine days is June (13.8 days).
Average UV index in December
Opheim, MT
- Average UV index in December: 1
The month with the highest UV index is July (UV index 7).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in December
Opheim, MT
- Average cloud cover in December: 47
The month with the most cloud cover is February (Cloud cover 49).
The month with the least cloud cover is July (Cloud cover 16).
Average visibility in December
Opheim, MT
- 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).
Opheim, Montana, USA
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