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
In Geraldine, the lowest average temperatures are observed in December, with a high of 29.8°F (-1.2°C) and a low of 18.5°F (-7.5°C).Humidity
In December, the average relative humidity in Geraldine, Montana, is 76%.Rainfall
The month with the least rainfall is December, when the rain falls for 5.8 days and typically collects 0.67" (17mm) of precipitation.Snowfall
Months with snowfall are January through May, September through December. In December, it is snowing for 10.7 days. Throughout December, 4.61" (117mm) of snow is accumulated. In Geraldine, during the entire year, snow falls for 58.3 days and aggregates up to 29.37" (746mm) of snow.Daylight
December has the shortest days of the year in Geraldine, Montana, with an average of 8h and 30min of daylight.On the first day of the month, sunrise is at 7:49 am and sunset at 4:31 pm. On the last day of December, in Geraldine, Montana, sunrise is at 8:09 am and sunset at 4:39 pm MST.
Sunshine
The months with the least sunshine in Geraldine, Montana, are January, February and December, with an average of 5.5h of sunshine.UV index
January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Geraldine. A UV Index of 2, and less, symbolizes a low health risk from unprotected exposure to Sun's UV rays for the average person.Note: The daily maximum UV index of 2 in December interprets into the following advice:
In contrast to children, who must always be shielded from the sun, most people can tolerate up to an hour of sun exposure without any burns. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit. Be advised! The UV radiation from the Sun can be almost doubled due to the reflective properties of snow.
Frequently asked questions
What time of the year is the coldest in Geraldine?
How cold is it in Geraldine in December?
What is the average humidity in December in Geraldine?
What is the driest month in Geraldine?
How many days does it rain in December in Geraldine?
How many days does it snow in December in Geraldine?
What is the month with the shortest days in Geraldine?
What is the average length of the day in December in Geraldine?
When is the sunrise / sunset in December in Geraldine?
What is the month with the least sunshine in Geraldine?
How long on average sun shines in December in Geraldine?
What are the months with the lowest UV index in Geraldine?
What is the UV index reading in December in Geraldine?
Average temperature in December
Geraldine, MT
- Average high temperature in December: 29.8°F
The warmest month (with the highest average high temperature) is July (82.8°F).
The month with the lowest average high temperature is December (29.8°F).
- Average low temperature in December: 18.5°F
The month with the highest average low temperature is August (60.4°F).
The coldest month (with the lowest average low temperature) is February (18.1°F).
Average pressure in December
Geraldine, MT
- Average pressure in December: 30.12"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).
Average wind speed in December
Geraldine, MT
- Average wind speed in December: 10.4mph
The windiest months (with the highest average wind speed) are January and November (10.7mph).
The calmest month (with the lowest average wind speed) is August (8.1mph).
Average humidity in December
Geraldine, MT
- Average humidity in December: 76%
The month with the highest relative humidity is January (78%).
The month with the lowest relative humidity is August (39%).
Average rainfall in December
Geraldine, MT
- Average rainfall in December: 0.67"
The wettest month (with the highest rainfall) is June (2.05").
The driest month (with the least rainfall) is December (0.67").
Average rainfall days in December
Geraldine, MT
- Average rainfall days in December: 5.8 days
The month with the highest number of rainy days is May (15.6 days).
The month with the least rainy days is January (5.3 days).
Average snowfall in December
Geraldine, MT
- Average snowfall in December: 4.61"
The month with the highest snowfall is February (5.51").
The months with the least snowfall are June, July and August (0").
Average snowfall days in December
Geraldine, MT
- Average snowfall days in December: 10.7 days
The month with the highest number of snowfall days is February (12.2 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in December /
Average sunshine in December
Geraldine, MT
- Average daylight in December: 8h and 3min
The month with the longest days is June (Average daylight: 15h and 54min).
The month with the shortest days is December (Average daylight: 8h and 30min).
- Average sunshine in December: 5h and 3min
The month with the most sunshine is July (Average sunshine: 12h and 0min).
The months with the least sunshine are January, February and December (Average sunshine: 5h and 30min).
Average sunshine days in December
Geraldine, MT
- Average sunshine days in December: 17.8 days
The month with the most sunshine days is September (19.3 days).
The month with the least sunshine days is April (11.2 days).
Average UV index in December
Geraldine, MT
- Average UV index in December: 2
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in December
Geraldine, MT
- Average cloud cover in December: 42
The month with the most cloud cover is February (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 14).
Average visibility in December
Geraldine, 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).
Geraldine, Montana, USA
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