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
The coldest months are January and February, with an average high-temperature of 25.7°F (-3.5°C).Humidity
January is the most humid month, with an average relative humidity of 84%.Rainfall
In January, in Hays, the rain falls for 5.3 days. Throughout January, 0.59" (15mm) of precipitation is accumulated. In Hays, during the entire year, the rain falls for 103.3 days and collects up to 11.81" (300mm) of precipitation.Snowfall
Months with snowfall in Hays are January through May, September through December. In Hays, Montana, during January, snow falls for 12.5 days and regularly aggregates up to 3.54" (90mm) of snow. Throughout the year, there are 59.6 snowfall days, and 20.28" (515mm) of snow is accumulated.Daylight
In Hays, the average length of the day in January is 8h and 55min.On the first day of the month, sunrise is at 8:04 am and sunset at 4:32 pm. On the last day of January, in Hays, sunrise is at 7:43 am and sunset at 5:12 pm MST.
Sunshine
In January, the average sunshine in Hays is 5h.UV index
In January, the average daily maximum UV index is 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV radiation for the ordinary person.Note: The maximum daily UV index of 2 in January interprets into the following recommendations:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. Boost your sun resistance with garments that are densely woven yet spacious. Be aware! The reflective nature of snow can magnify the Sun's UV radiation almost twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the coldest months in Hays?
How cold is January in Hays?
What is the most humid month in Hays?
What is the average humidity in January in Hays?
How many days does it rain in January in Hays?
How many days does it snow in January in Hays?
How many hours of daylight does Hays have in January?
When is the sunrise / sunset in January in Hays?
How many hours of sunshine does Hays have in January?
How high is the UV index in January in Hays?
Average temperature in January
Hays, MT
- Average high temperature in January: 25.7°F
The warmest month (with the highest average high temperature) is July (83.5°F).
The months with the lowest average high temperature are January and February (25.7°F).
- Average low temperature in January: 11.8°F
The month with the highest average low temperature is July (62.4°F).
The coldest month (with the lowest average low temperature) is January (11.8°F).
Average pressure in January
Hays, MT
- Average pressure in January: 30.13"Hg
The month with the highest atmospheric pressure is February (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.83"Hg).
Average wind speed in January
Hays, MT
- Average wind speed in January: 9.7mph
The windiest month (with the highest average wind speed) is April (11.2mph).
The calmest month (with the lowest average wind speed) is February (8.8mph).
Average humidity in January
Hays, MT
- Average humidity in January: 84%
The month with the highest relative humidity is January (84%).
The month with the lowest relative humidity is August (41%).
Average rainfall in January
Hays, MT
- Average rainfall in January: 0.59"
The wettest months (with the highest rainfall) are May and June (1.89").
The driest months (with the least rainfall) are February and December (0.55").
Average rainfall days in January
Hays, MT
- Average rainfall days in January: 5.3 days
The month with the highest number of rainy days is May (14.1 days).
The month with the least rainy days is December (4 days).
Average snowfall in January
Hays, MT
- Average snowfall in January: 3.54"
The month with the highest snowfall is December (3.9").
The months with the least snowfall are June, July and August (0").
Average snowfall days in January
Hays, MT
- Average snowfall days in January: 12.5 days
The month with the highest number of snowfall days is December (12.7 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in January /
Average sunshine in January
Hays, 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 30min).
- Average sunshine in January: 5h and 0min
The month with the most sunshine is July (Average sunshine: 11h and 48min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).
Average sunshine days in January
Hays, MT
- Average sunshine days in January: 16.8 days
The month with the most sunshine days is September (19.6 days).
The month with the least sunshine days is April (13.4 days).
Average UV index in January
Hays, MT
- Average UV index in January: 2
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 January
Hays, MT
- Average cloud cover in January: 46
The month with the most cloud cover is February (Cloud cover 49).
The months with the least cloud cover are July and August (Cloud cover 17).
Average visibility in January
Hays, MT
- Average visibility in January: 5mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).
Hays, Montana, USA
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