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
Helena's temperature records reveal January as the coldest month, marked by average highs of 37.9°F (3.3°C) and lows of 25.2°F (-3.8°C).Humidity
The average relative humidity in January in Helena is 79%.Rainfall
January, September and October are months with the least rain when the rain falls for 9.3 days and typically aggregates up to 1.06" (27mm) of rain.Snowfall
Months with snowfall are January through April, October through December. In Helena, in January, snow falls for 8.5 days, with typically accumulated 1.22" (31mm) of snow. In Helena, during the entire year, snow falls for 30.6 days and aggregates up to 5.16" (131mm) of snow.Daylight
The average length of the day in January in Helena is 9h and 50min.On the first day of January in Helena, sunrise is at 7:52 am and sunset at 5:24 pm. On the last day of the month, sunrise is at 7:41 am and sunset at 5:55 pm EST.
Sunshine
January has the least sunshine of the year in Helena, with an average of 3.9h of sunshine.UV index
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV radiation for average individuals.Note: The maximum daily UV index, 2 in January, converts into the following recommendations:
Extended sunlight exposure does not pose significant problems for most people, except for children, infants, and people with fair skin who always need shielding. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes. On your guard! Snow's reflection can almost double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What part of the year is the coldest in Helena?
How cold is it in Helena in January?
What is the average humidity in January in Helena?
What is the driest month in Helena?
How many days does it rain in January in Helena?
How much does it snow in Helena in January?
How many hours of daylight does Helena have in January?
When is the sunrise / sunset in January in Helena?
What is the month with the least sunshine in Helena?
How many hours of sunshine does Helena have in January?
When is the lowest UV index in Helena?
What is the UV index intensity in January in Helena?
Average temperature in January
Helena, KY
- Average high temperature in January: 37.9°F
The warmest month (with the highest average high temperature) is July (85.3°F).
The month with the lowest average high temperature is January (37.9°F).
- Average low temperature in January: 25.2°F
The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (25.2°F).
Average pressure in January
Helena, KY
- Average pressure in January: 30.15"Hg
The months with the highest atmospheric pressure are January and November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).
Average wind speed in January
Helena, KY
- Average wind speed in January: 8.5mph
The windiest month (with the highest average wind speed) is January (8.5mph).
The calmest month (with the lowest average wind speed) is August (5mph).
Average humidity in January
Helena, KY
- Average humidity in January: 79%
The months with the highest relative humidity are February and December (81%).
The month with the lowest relative humidity is August (75%).
Average rainfall in January
Helena, KY
- Average rainfall in January: 1.06"
The wettest month (with the highest rainfall) is July (1.93").
The driest months (with the least rainfall) are January, September and October (1.06").
Average rainfall days in January
Helena, KY
- Average rainfall days in January: 9.3 days
The month with the highest number of rainy days is July (15.8 days).
The month with the least rainy days is November (8.3 days).
Average snowfall in January
Helena, KY
- Average snowfall in January: 1.22"
The month with the highest snowfall is February (1.46").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in January
Helena, KY
- Average snowfall days in January: 8.5 days
The month with the highest number of snowfall days is January (8.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Helena, KY
- Average daylight in January: 9h and 5min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in January: 3h and 5min
The month with the most sunshine is August (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days in January
Helena, KY
- Average sunshine days in January: 15.9 days
The month with the most sunshine days is November (19 days).
The month with the least sunshine days is February (11.4 days).
Average UV index in January
Helena, KY
- Average UV index in January: 2
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in January
Helena, KY
- Average cloud cover in January: 59
The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 29).
Average visibility in January
Helena, KY
- Average visibility in January: 5mi
The months with the highest visibility are March, April, June, August, October, November and December (6mi).
The months with the lowest visibility are January, February, May, July and September (5mi).
Helena, Kentucky, USA
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