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
With its high average temperature of 22.3°F (-5.4°C) and a low of 9.9°F (-12.3°C), January is regarded as the coldest month.Humidity
With an average relative humidity of 89%, January is the most humid month in Mason City.Rainfall
January is the month with the least rainfall. Rain falls for 4.5 days and accumulates 1.06" (27mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In Mason City, in January, during 14.6 snowfall days, 5.67" (144mm) of snow is typically accumulated. In Mason City, during the entire year, snow falls for 60.2 days and aggregates up to 26.26" (667mm) of snow.Daylight
The average length of the day in January is 9h and 26min.On the first day of January, sunrise is at 7:44 am and sunset at 4:47 pm. On the last day of the month, sunrise is at 7:29 am and sunset at 5:23 pm CST.
Sunshine
January has the least sunshine of the year in Mason City, with an average of 3.5h of sunshine.UV index
January and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index reading of 2, and below, represents a low threat to health from exposure to the Sun's UV rays for the ordinary person.Note: The maximum UV index of 1 during January translates into these guidelines:
While most individuals can withstand prolonged sun exposure, it is imperative that babies, children, and those with sensitive skin always be shielded. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes. Take heed! The reflection of snow can intensify the Sun's UV radiation nearly double.
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 January in Mason City?
What is the most humid month?
What is the average humidity in January?
What is the driest month?
How many days does it rain in January in Mason City?
How many days does it snow in January?
How many hours of daylight does Mason City have in January?
When are sunrise and sunset in January?
What is the month with the least sunshine in Mason City?
How long on average sun shines in January?
What is the month with the lowest UV index?
What is the UV index reading in January?
Average temperature in January
Mason City, IA
- Average high temperature in January: 22.3°F
The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (22.3°F).
- Average low temperature in January: 9.9°F
The month with the highest average low temperature is July (62.6°F).
The coldest month (with the lowest average low temperature) is January (9.9°F).
Average pressure in January
Mason City, IA
- Average pressure in January: 30.15"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in January
Mason City, IA
- Average wind speed in January: 10.9mph
The windiest months (with the highest average wind speed) are January and April (10.9mph).
The calmest months (with the lowest average wind speed) are July and August (7.3mph).
Average humidity in January
Mason City, IA
- Average humidity in January: 89%
The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is October (71%).
Average rainfall in January
Mason City, IA
- Average rainfall in January: 1.06"
The wettest month (with the highest rainfall) is June (4.65").
The driest month (with the least rainfall) is January (1.06").
Average rainfall days in January
Mason City, IA
- Average rainfall days in January: 4.5 days
The month with the highest number of rainy days is June (19.8 days).
The month with the least rainy days is February (3.8 days).
Average snowfall in January
Mason City, IA
- Average snowfall in January: 5.67"
The month with the highest snowfall is February (7.48").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in January
Mason City, IA
- Average snowfall days in January: 14.6 days
The month with the highest number of snowfall days is January (14.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Mason City, IA
- Average daylight in January: 9h and 2min
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: 3h and 3min
The month with the most sunshine is July (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).
Average sunshine days in January
Mason City, IA
- Average sunshine days in January: 14.2 days
The month with the most sunshine days is November (17.2 days).
The month with the least sunshine days is June (8 days).
Average UV index in January
Mason City, IA
- Average UV index in January: 1
The month with the highest UV index is June (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in January
Mason City, IA
- Average cloud cover in January: 63
The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in January
Mason City, IA
- Average visibility in January: 5mi
The months with the highest visibility are March, April, May, June, August, September, October and November (6mi).
The months with the lowest visibility are January, February, July and December (5mi).
Mason City, Iowa, USA
Weather forecast for your location
2. Allow the app to use your location