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
January stands out as Alta's coldest month, with an average high-temperature of 24.6°F (-4.1°C) and a low-temperature of 12.6°F (-10.8°C).Humidity
With an average relative humidity of 85%, January is the most humid month.Rainfall
The month with the least rainfall in Alta is January, when the rain falls for 4.1 days and typically collects 0.91" (23mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. In Alta, Iowa, during January, snow falls for 12.6 days and regularly aggregates up to 4.65" (118mm) of snow. Throughout the year, there are 50 snowfall days, and 20.04" (509mm) of snow is accumulated.Daylight
In Alta, the average length of the day in January is 9h and 28min.On the first day of January, sunrise is at 7:51 am and sunset at 4:58 pm. On the last day of the month, sunrise is at 7:36 am and sunset at 5:32 pm CST.
Sunshine
January has the least sunshine of the year, with an average of 4.1h of sunshine.UV index
January and February, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a minimal health hazard from exposure to the Sun's UV rays for average individuals.Note: In January, a daily maximum UV index of 1 leads to the following instructions:
Apart from children, who require continuous protection, most can endure sun exposure for up to an hour without experiencing burns. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays. Be advised! The UV radiation from the Sun can be almost doubled due to the reflective properties of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What time of the year is the coldest?
How cold is it in January?
What is the most humid month?
What is the average humidity in January?
What is the driest month?
How much does it rain in January?
How much does it snow in January?
How many hours of daylight does Alta have in January?
What time are sunrise and sunset in January?
What is the month with the least sunshine?
How many hours of sunshine does Alta have in January?
What are the months with the lowest UV index?
What is the UV index intensity in January?
Average temperature in January
Alta, IA
- Average high temperature in January: 24.6°F
The warmest month (with the highest average high temperature) is July (81.3°F).
The month with the lowest average high temperature is January (24.6°F).
- Average low temperature in January: 12.6°F
The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (12.6°F).
Average pressure in January
Alta, IA
- Average pressure in January: 30.16"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).
Average wind speed in January
Alta, IA
- Average wind speed in January: 11.2mph
The windiest months (with the highest average wind speed) are January and April (11.2mph).
The calmest month (with the lowest average wind speed) is July (7.5mph).
Average humidity in January
Alta, IA
- Average humidity in January: 85%
The month with the highest relative humidity is January (85%).
The months with the lowest relative humidity are April and October (68%).
Average rainfall in January
Alta, IA
- Average rainfall in January: 0.91"
The wettest month (with the highest rainfall) is June (4.02").
The driest month (with the least rainfall) is January (0.91").
Average rainfall days in January
Alta, IA
- Average rainfall days in January: 4.1 days
The month with the highest number of rainy days is June (19 days).
The month with the least rainy days is February (3.7 days).
Average snowfall in January
Alta, IA
- Average snowfall in January: 4.65"
The month with the highest snowfall is February (5.79").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in January
Alta, IA
- Average snowfall days in January: 12.6 days
The month with the highest number of snowfall days is January (12.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Alta, IA
- Average daylight in January: 9h and 3min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in January: 4h and 1min
The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).
Average sunshine days in January
Alta, IA
- Average sunshine days in January: 16.6 days
The month with the most sunshine days is November (18.8 days).
The month with the least sunshine days is June (8.1 days).
Average UV index in January
Alta, IA
- Average UV index in January: 1
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January and February (UV index 1).
Average cloud cover in January
Alta, IA
- Average cloud cover in January: 55
The month with the most cloud cover is January (Cloud cover 55).
The month with the least cloud cover is July (Cloud cover 28).
Average visibility in January
Alta, IA
- 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).
Alta, Iowa, USA
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