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
Greenough marks the arrival of January with an average high-temperature of a still subzero cold 28.4°F (-2°C), hardly different from December's 26.1°F (-3.3°C). In January, the average low-temperature is an extreme cold 13.5°F (-10.3°C).Humidity
The most humid month is January, with an average relative humidity of 91%.Rainfall
In Greenough, in January, during 2.3 rainfall days, 0.16" (4mm) of precipitation is typically accumulated. In Greenough, during the entire year, the rain falls for 46.4 days and collects up to 2.4" (61mm) of precipitation.Snowfall
January through June, September through December are months with snowfall. In Greenough, during January, snow falls for 5.4 days and regularly aggregates up to 1.1" (28mm) of snow. In Greenough, Montana, during the entire year, snow falls for 31.4 days and aggregates up to 7.64" (194mm) of snow.Daylight
In Greenough, the average length of the day in January 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
With an average of 5.2h of sunshine, January has the least sunshine of the year.UV index
January and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index reading of 2, and below, represents a low threat to health from unsafe exposure to UV radiation for average individuals.Note: In January, a daily UV index of 1 turns into the following recommendations:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. Experience reduced UV exposure by about half when donning a wide-brim hat. Take heed! Reflection from the snow can almost amplify the Sun's UV radiation by double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is it in January?
What is the most humid month?
What is the average humidity in January?
How much does it rain in January?
How much does it snow in January?
How many hours of daylight does Greenough have in January?
When is the sunrise / sunset in January?
What is the month with the least sunshine?
How many hours of sunshine does Greenough have in January?
What is the month with the lowest UV index?
What is the UV index intensity in January?
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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