December weather forecastMelstone, MT
December
Weather in December
The first month of the winter, December, is still a freezing cold month in Melstone, Montana, with an average temperature ranging between max 31.1°F (-0.5°C) and min 18.5°F (-7.5°C).Temperature
December proves to be the coldest month, recording an average maximum temperature of 31.1°F (-0.5°C) and a minimum temperature of 18.5°F (-7.5°C).Humidity
In December, the average relative humidity is 74%.Rainfall
In Melstone, Montana, in December, it is raining for 5.5 days, with typically 0.59" (15mm) of accumulated precipitation. In Melstone, Montana, during the entire year, the rain falls for 114.3 days and collects up to 12.13" (308mm) of precipitation.Snowfall
January through May, September through December are months with snowfall. In Melstone, in December, snow falls for 9.6 days, with typically accumulated 2.72" (69mm) of snow. Throughout the year, there are 53.5 snowfall days, and 18.58" (472mm) of snow is accumulated.Daylight
December has the shortest days of the year in Melstone, with an average of 8h and 36min of daylight.On the first day of the month, sunrise is at 7:35 am and sunset at 4:25 pm. On the last day of December, sunrise is at 7:55 am and sunset at 4:34 pm MST.
Sunshine
The months with the least sunshine are February and December, with an average of 5.2h of sunshine.UV index
With an average maximum UV index of 1, December is the month with the lowest UV index. A UV Index value of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV rays for average individuals.Note: A maximum UV index of 1 in December translates into the following recommendations:
While extended sun exposure does not significantly affect most people, those with sensitive skin, children, and infants should always be protected. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days. On your guard! Snow's reflection 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
Melstone, MT
- Average high temperature in December: 31.1°F
The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is December (31.1°F).
- Average low temperature in December: 18.5°F
The month with the highest average low temperature is July (62.4°F).
The coldest month (with the lowest average low temperature) is February (18°F).
Average pressure in December
Melstone, 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
Melstone, MT
- Average wind speed in December: 11mph
The windiest month (with the highest average wind speed) is January (11.2mph).
The calmest months (with the lowest average wind speed) are July and August (8.5mph).
Average humidity in December
Melstone, MT
- Average humidity in December: 74%
The month with the highest relative humidity is January (77%).
The month with the lowest relative humidity is August (39%).
Average rainfall in December
Melstone, MT
- Average rainfall in December: 0.59"
The wettest month (with the highest rainfall) is May (1.97").
The driest month (with the least rainfall) is January (0.55").
Average rainfall days in December
Melstone, MT
- Average rainfall days in December: 5.5 days
The month with the highest number of rainy days is May (15.6 days).
The month with the least rainy days is February (4.6 days).
Average snowfall in December
Melstone, MT
- Average snowfall in December: 2.72"
The month with the highest snowfall is February (3.78").
The months with the least snowfall are June, July and August (0").
Average snowfall days in December
Melstone, MT
- Average snowfall days in December: 9.6 days
The month with the highest number of snowfall days is February (11.1 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in December /
Average sunshine in December
Melstone, MT
- Average daylight in December: 8h and 36min
The month with the longest days is June (Average daylight: 15h and 48min).
The month with the shortest days is December (Average daylight: 8h and 36min).
- Average sunshine in December: 5h and 12min
The month with the most sunshine is July (Average sunshine: 11h and 48min).
The months with the least sunshine are February and December (Average sunshine: 5h and 12min).
Average sunshine days in December
Melstone, MT
- Average sunshine days in December: 17.8 days
The month with the most sunshine days is September (19.5 days).
The month with the least sunshine days is April (12.8 days).
Average UV index in December
Melstone, 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
Melstone, MT
- Average cloud cover in December: 45
The month with the most cloud cover is February (Cloud cover 47).
The months with the least cloud cover are July and August (Cloud cover 16).
Average visibility in December
Melstone, 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).
