Contents
- Weather in January
- Frequently asked questions
- Average temperature in January
- Average pressure in January
- Average wind speed in January
- Average humidity in January
- Average rainfall in January
- Average rainfall days in January
- Average snowfall in January
- Average snowfall days in January
- Average daylight in January
- Average sunshine in January
- Average sunshine days in January
- Average UV index in January
- Average cloud cover in January
- Average visibility in January
Weather in January
Temperature
January's beginning signals an average high-temperature of a still freezing cold 28.9°F (-1.7°C), barely different from December's 27.1°F (-2.7°C). January brings with it a nighttime average temperature of 16.2°F (-8.8°C) in Heart Butte.Humidity
The most humid month in Heart Butte is January, with an average relative humidity of 79%.Rainfall
In January, the rain falls for 3.9 days. Throughout January, 0.35" (9mm) of precipitation is accumulated. In Heart Butte, during the entire year, the rain falls for 70.4 days and collects up to 8.46" (215mm) of precipitation.Snowfall
Months with snowfall in Heart Butte are January through May, September through December. In Heart Butte, in January, snow falls for 8.8 days, with typically accumulated 2.28" (58mm) of snow. In Heart Butte, during the entire year, snow falls for 54.3 days and aggregates up to 19.49" (495mm) of snow.Daylight
In January, the average length of the day is 8h and 53min.On the first day of the month, sunrise is at 8:22 am and sunset at 4:47 pm. On the last day of January, sunrise is at 8:01 am and sunset at 5:28 pm MST.
Sunshine
The months with the least sunshine in Heart Butte are January and December, with an average of 5.6h of sunshine.UV index
January through March, October through December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index reading of 2, and below, represents a low health risk from exposure to the Sun's UV radiation for average individuals.Note: In January, the maximum UV index of 2 translates into these guidelines:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit. Take heed! The reflection of snow can intensify the Sun's UV radiation nearly double.
Frequently asked questions
How cold is it in Heart Butte in January?
What is the most humid month in Heart Butte?
What is the average humidity in January in Heart Butte?
How many days does it rain in January in Heart Butte?
How much does it snow in Heart Butte in January?
How many hours of daylight does Heart Butte have in January?
When is the sunrise / sunset in January in Heart Butte?
What is the month with the least sunshine in Heart Butte?
How many hours of sunshine does Heart Butte have in January?
What is the month with the lowest UV index in Heart Butte?
What is the UV index reading in January in Heart Butte?
Average temperature in January
Heart Butte, MT
- Average high temperature in January: 28.9°F
The warmest month (with the highest average high temperature) is July (78.8°F).
The month with the lowest average high temperature is December (27.1°F).
- Average low temperature in January: 16.2°F
The month with the highest average low temperature is August (55.2°F).
The coldest month (with the lowest average low temperature) is December (15.3°F).
Average pressure in January
Heart Butte, MT
- Average pressure in January: 30.13"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).
Average wind speed in January
Heart Butte, MT
- Average wind speed in January: 11.8mph
The windiest month (with the highest average wind speed) is January (11.8mph).
The calmest months (with the lowest average wind speed) are July and August (8.8mph).
Average humidity in January
Heart Butte, MT
- Average humidity in January: 79%
The month with the highest relative humidity is January (79%).
The month with the lowest relative humidity is August (43%).
Average rainfall in January
Heart Butte, MT
- Average rainfall in January: 0.35"
The wettest month (with the highest rainfall) is June (1.77").
The driest month (with the least rainfall) is July (0.31").
Average rainfall days in January
Heart Butte, MT
- Average rainfall days in January: 3.9 days
The month with the highest number of rainy days is May (10.4 days).
The month with the least rainy days is November (2.6 days).
Average snowfall in January
Heart Butte, MT
- Average snowfall in January: 2.28"
The month with the highest snowfall is February (3.58").
The months with the least snowfall are June, July and August (0").
Average snowfall days in January
Heart Butte, MT
- Average snowfall days in January: 8.8 days
The month with the highest number of snowfall days is December (10.2 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in January /
Average sunshine in January
Heart Butte, MT
- Average daylight in January: 8h and 5min
The month with the longest days is June (Average daylight: 16h and 0min).
The month with the shortest days is December (Average daylight: 8h and 24min).
- Average sunshine in January: 5h and 4min
The month with the most sunshine is July (Average sunshine: 12h and 0min).
The months with the least sunshine are January and December (Average sunshine: 5h and 36min).
Average sunshine days in January
Heart Butte, MT
- Average sunshine days in January: 21.1 days
The month with the most sunshine days is July (23.5 days).
The month with the least sunshine days is April (17.4 days).
Average UV index in January
Heart Butte, MT
- Average UV index in January: 2
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).
Average cloud cover in January
Heart Butte, MT
- Average cloud cover in January: 40
The month with the most cloud cover is February (Cloud cover 43).
The month with the least cloud cover is July (Cloud cover 15).
Average visibility in January
Heart Butte, MT
- Average visibility in January: 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).
Heart Butte, Montana, USA
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