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 weather records an average high-temperature of a still subzero cold 28.4°F (-2°C), showing little deviation from December. In January, Greenough records an average nighttime temperature of 13.5°F (-10.3°C).Humidity
With an average relative humidity of 91%, January is the most humid month.Rainfall
In Greenough, in January, during 2.3 rainfall days, 0.16" (4mm) of precipitation is typically accumulated. Throughout the year, in Greenough, there are 46.4 rainfall days, and 2.4" (61mm) of precipitation is accumulated.Snowfall
January through June, September through December are months with snowfall. In January, in Greenough, it is snowing for 5.4 days. Throughout January, 1.1" (28mm) of snow is accumulated. Throughout the year, in Greenough, there are 31.4 snowfall days, and 7.64" (194mm) of snow is accumulated.Daylight
The average length of the day in January in Greenough is 9h and 2min.On the first day of January, sunrise is at 8:19 am and sunset at 4:55 pm. On the last day of the month, sunrise is at 7:59 am and sunset at 5:34 pm MST.
Sunshine
January has the least sunshine of the year in Greenough, with an average of 5.2h of sunshine.UV index
The months with the lowest UV index in Greenough are January and December, with an average maximum UV index of 1. A UV Index estimate of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV radiation for the average person.Note: In January, a daily maximum UV index of 1 leads to the following instructions:
Prolonged sun exposure generally does not trouble most people. However, it is vital to ensure protection for babies, children, and individuals with sensitive skin. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly. Notice this! Nearly double the intensity of the Sun's UV radiation can be caused by snow reflection.
Frequently asked questions
How cold is January in Greenough?
What is the most humid month in Greenough?
What is the average humidity in January in Greenough?
How many days does it rain in January in Greenough?
How much does it snow in Greenough in January?
What is the average length of the day in January in Greenough?
When is the sunrise / sunset in January in Greenough?
What is the month with the least sunshine in Greenough?
How long on average sun shines in January in Greenough?
What is the month with the lowest UV index in Greenough?
How high is the UV index in January in Greenough?
Average temperature in January
Greenough, MT
- Average high temperature in January: 28.4°F
The warmest month (with the highest average high temperature) is July (79.2°F).
The month with the lowest average high temperature is December (26.1°F).
- Average low temperature in January: 13.5°F
The months with the highest average low temperature are July and August (45.5°F).
The coldest month (with the lowest average low temperature) is December (12.2°F).
Average pressure in January
Greenough, MT
- Average pressure in January: 30.18"Hg
The month with the highest atmospheric pressure is January (30.18"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in January
Greenough, MT
- Average wind speed in January: 5mph
The windiest month (with the highest average wind speed) is April (6mph).
The calmest month (with the lowest average wind speed) is August (4.7mph).
Average humidity in January
Greenough, MT
- Average humidity in January: 91%
The month with the highest relative humidity is January (91%).
The months with the lowest relative humidity are July and August (51%).
Average rainfall in January
Greenough, MT
- Average rainfall in January: 0.16"
The wettest month (with the highest rainfall) is June (0.43").
The driest month (with the least rainfall) is December (0.08").
Average rainfall days in January
Greenough, MT
- Average rainfall days in January: 2.3 days
The month with the highest number of rainy days is April (6.8 days).
The month with the least rainy days is January (2.3 days).
Average snowfall in January
Greenough, MT
- Average snowfall in January: 1.1"
The month with the highest snowfall is February (1.57").
The months with the least snowfall are July and August (0").
Average snowfall days in January
Greenough, MT
- Average snowfall days in January: 5.4 days
The month with the highest number of snowfall days is February (5.8 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in January /
Average sunshine in January
Greenough, MT
- Average daylight in January: 9h and 0min
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 January: 5h and 1min
The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 5h and 12min).
Average sunshine days in January
Greenough, MT
- Average sunshine days in January: 26.1 days
The month with the most sunshine days is July (27 days).
The month with the least sunshine days is April (21.9 days).
Average UV index in January
Greenough, MT
- Average UV index in January: 1
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in January
Greenough, MT
- Average cloud cover in January: 49
The months with the most cloud cover are January and February (Cloud cover 49).
The month with the least cloud cover is July (Cloud cover 12).
Average visibility in January
Greenough, MT
- Average visibility in January: 4mi
The months with the highest visibility are April, May, June, July, August, September and October (6mi).
The months with the lowest visibility are January, February and December (4mi).
Greenough, Montana, USA
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