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
During January and December, Saint Johns registers its lowest temperatures, averaging a high of 27.1°F (-2.7°C).Humidity
With an average relative humidity of 83%, January is the most humid month.Rainfall
In January, in Saint Johns, the rain falls for 4.5 days. Throughout January, 0.43" (11mm) of precipitation is accumulated. In Saint Johns, during the entire year, the rain falls for 98.7 days and collects up to 8.23" (209mm) of precipitation.Snowfall
January through May, September through December are months with snowfall. In Saint Johns, Montana, in January, snow falls for 10.4 days, with typically accumulated 2.6" (66mm) of snow. In Saint Johns, during the entire year, snow falls for 53.5 days and aggregates up to 14.25" (362mm) of snow.Daylight
In Saint Johns, the average length of the day in January is 8h and 49min.On the first day of January, sunrise is at 8:13 am and sunset at 4:33 pm. On the last day of the month, sunrise is at 7:51 am and sunset at 5:15 pm MST.
Sunshine
In Saint Johns, the average sunshine in January is 5.6h.UV index
January through March, October through December, with an average maximum UV index of 2, are months with the lowest UV index in Saint Johns. A UV Index reading of 2, and below, represents a low threat to health from exposure to the Sun's UV rays for the average person.Note: A daily maximum UV index of 2 in January translates into the following instructions:
Long-term sun exposure is typically not a concern for most. However, those with sensitive skin, infants, and children must always have protection. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. Enhance your sun protection with tightly woven, yet airy clothing. Take to heart! Snow reflection can almost magnify the Sun's UV radiation twofold.
Frequently asked questions
What is the coldest month in Saint Johns?
How cold is it in Saint Johns in January?
What is the most humid month in Saint Johns?
What is the average humidity in January in Saint Johns?
How many days does it rain in January in Saint Johns?
How many days does it snow in January in Saint Johns?
What is the average length of the day in January in Saint Johns?
What time are sunrise and sunset in January in Saint Johns?
How many hours of sunshine does Saint Johns have in January?
What are the months with the lowest UV index in Saint Johns?
What is the UV index intensity in January in Saint Johns?
Average temperature in January
Saint Johns, MT
- Average high temperature in January: 27.1°F
The warmest month (with the highest average high temperature) is July (82.8°F).
The months with the lowest average high temperature are January and December (27.1°F).
- Average low temperature in January: 14.4°F
The month with the highest average low temperature is August (61.3°F).
The coldest month (with the lowest average low temperature) is February (13.5°F).
Average pressure in January
Saint Johns, MT
- Average pressure in January: 30.12"Hg
The months with the highest atmospheric pressure are January and February (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).
Average wind speed in January
Saint Johns, MT
- Average wind speed in January: 10.1mph
The windiest month (with the highest average wind speed) is April (10.6mph).
The calmest month (with the lowest average wind speed) is August (8.5mph).
Average humidity in January
Saint Johns, MT
- Average humidity in January: 83%
The month with the highest relative humidity is January (83%).
The month with the lowest relative humidity is August (40%).
Average rainfall in January
Saint Johns, MT
- Average rainfall in January: 0.43"
The wettest month (with the highest rainfall) is June (1.5").
The driest month (with the least rainfall) is December (0.31").
Average rainfall days in January
Saint Johns, MT
- Average rainfall days in January: 4.5 days
The month with the highest number of rainy days is May (13.8 days).
The month with the least rainy days is February (4 days).
Average snowfall in January
Saint Johns, MT
- Average snowfall in January: 2.6"
The month with the highest snowfall is February (2.72").
The months with the least snowfall are June, July and August (0").
Average snowfall days in January
Saint Johns, MT
- Average snowfall days in January: 10.4 days
The month with the highest number of snowfall days is February (11 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in January /
Average sunshine in January
Saint Johns, MT
- Average daylight in January: 8h and 5min
The month with the longest days is June (Average daylight: 16h and 6min).
The month with the shortest days is December (Average daylight: 8h and 18min).
- Average sunshine in January: 5h and 4min
The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is February (Average sunshine: 5h and 18min).
Average sunshine days in January
Saint Johns, MT
- Average sunshine days in January: 17.8 days
The month with the most sunshine days is September (20.3 days).
The month with the least sunshine days is April (12.8 days).
Average UV index in January
Saint Johns, 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
Saint Johns, MT
- Average cloud cover in January: 42
The month with the most cloud cover is February (Cloud cover 46).
The months with the least cloud cover are July and August (Cloud cover 16).
Average visibility in January
Saint Johns, 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).
Saint Johns, Montana, USA
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