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
A minimal variation is noted in East Helena's average high-temperature at the onset of January, reaching a still freezing cold 30.4°F (-0.9°C) from December's 27.7°F (-2.4°C). An average minimum temperature of 16°F (-8.9°C) is recorded during the month of January.Humidity
January is the most humid month in East Helena, Montana, with an average relative humidity of 85%.Rainfall
January and December are months with the least rain when the rain falls for 8.4 days and typically aggregates up to 0.63" (16mm) of rain.Snowfall
Months with snowfall in East Helena are January through May, September through December. In January, in East Helena, it is snowing for 13.3 days. Throughout January, 4.41" (112mm) of snow is accumulated. In East Helena, during the entire year, snow falls for 80.4 days and aggregates up to 34.88" (886mm) of snow.Daylight
In January, the average length of the day in East Helena is 9h and 4min.On the first day of January, sunrise is at 8:11 am and sunset at 4:50 pm. On the last day of the month, sunrise is at 7:52 am and sunset at 5:29 pm MST.
Sunshine
The month with the least sunshine in East Helena is January, with an average of 5.6h of sunshine.UV index
In East Helena, the average daily maximum UV index in January is 2. A UV Index of 2, and less, symbolizes a low health risk from exposure to the Sun's UV radiation for ordinary individuals.Note: In January, the maximum UV index of 2 suggests this advice:
While most individuals can withstand prolonged sun exposure, it is imperative that babies, children, and those with sensitive skin always be shielded. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes. Be careful! The Sun's UV radiation can nearly be doubled by the reflective quality of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is January in East Helena?
What is the most humid month in East Helena?
What is the average humidity in January in East Helena?
What is the driest month in East Helena?
How many days does it rain in January in East Helena?
How much does it snow in East Helena in January?
What is the average length of the day in January in East Helena?
What time are sunrise and sunset in January in East Helena?
What is the month with the least sunshine in East Helena?
How long on average sun shines in January in East Helena?
What is the UV index intensity in January in East Helena?
Average temperature in January
East Helena, MT
- Average high temperature in January: 30.4°F
The warmest month (with the highest average high temperature) is July (80.2°F).
The month with the lowest average high temperature is December (27.7°F).
- Average low temperature in January: 16°F
The month with the highest average low temperature is July (50.4°F).
The coldest month (with the lowest average low temperature) is December (14.2°F).
Average pressure in January
East Helena, 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 (29.9"Hg).
Average wind speed in January
East Helena, MT
- Average wind speed in January: 7mph
The windiest month (with the highest average wind speed) is November (7.1mph).
The calmest month (with the lowest average wind speed) is August (5mph).
Average humidity in January
East Helena, MT
- Average humidity in January: 85%
The month with the highest relative humidity is January (85%).
The months with the lowest relative humidity are July and August (46%).
Average rainfall in January
East Helena, MT
- Average rainfall in January: 0.63"
The wettest month (with the highest rainfall) is June (2.01").
The driest months (with the least rainfall) are January and December (0.63").
Average rainfall days in January
East Helena, MT
- Average rainfall days in January: 8.4 days
The month with the highest number of rainy days is May (15.8 days).
The month with the least rainy days is November (7 days).
Average snowfall in January
East Helena, MT
- Average snowfall in January: 4.41"
The month with the highest snowfall is February (6.18").
The months with the least snowfall are June, July and August (0").
Average snowfall days in January
East Helena, MT
- Average snowfall days in January: 13.3 days
The month with the highest number of snowfall days is February (16.2 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in January /
Average sunshine in January
East Helena, MT
- Average daylight in January: 9h and 1min
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 4min
The month with the most sunshine is July (Average sunshine: 11h and 42min).
The month with the least sunshine is January (Average sunshine: 5h and 36min).
Average sunshine days in January
East Helena, MT
- Average sunshine days in January: 15.2 days
The month with the most sunshine days is July (20.5 days).
The month with the least sunshine days is April (9.8 days).
Average UV index in January
East Helena, MT
- Average UV index in January: 2
The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is February (UV index 1).
Average cloud cover in January
East Helena, MT
- Average cloud cover in January: 42
The month with the most cloud cover is February (Cloud cover 47).
The months with the least cloud cover are July and August (Cloud cover 15).
Average visibility in January
East Helena, MT
- Average visibility in January: 5mi
The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February and December (5mi).
East Helena, Montana, USA
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