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, with average temperatures reaching a high of 23.4°F (-4.8°C) and a low of 10.8°F (-11.8°C), is the coldest month.Humidity
With an average relative humidity of 88%, January is the most humid month.Rainfall
January is the month with the least rainfall. Rain falls for 4.8 days and accumulates 0.98" (25mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In Rowan, during January, snow falls for 10.8 days and regularly aggregates up to 4.92" (125mm) of snow. In Rowan, during the entire year, snow falls for 44.7 days and aggregates up to 20.51" (521mm) of snow.Daylight
The average length of the day in January is 9h and 28min.On the first day of January, sunrise is at 7:44 am and sunset at 4:50 pm. On the last day of the month, sunrise is at 7:29 am and sunset at 5:25 pm CST.
Sunshine
January has the least sunshine of the year, with an average of 3.7h of sunshine.UV index
January through March, October through December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index reading of 2, and below, represents a minimal health hazard from unsafe exposure to UV radiation for the ordinary person.Note: The maximum daily UV index, 2 in January, converts into the following recommendations:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun. Pay attention! The reflection of snow can enhance the Sun's UV radiation almost double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What month is the coldest in Rowan?
How cold is January?
What is the most humid month?
What is the average humidity in January in Rowan?
What is the driest month?
How much does it rain in Rowan in January?
How many days does it snow in January?
How many hours of daylight does Rowan have in January?
When is the sunrise / sunset in January?
What is the month with the least sunshine?
How long on average sun shines in January?
When is the lowest UV index in Rowan?
What is the UV index intensity in January?
Average temperature in January
Rowan, IA
- Average high temperature in January: 23.4°F
The warmest month (with the highest average high temperature) is July (79.7°F).
The month with the lowest average high temperature is January (23.4°F).
- Average low temperature in January: 10.8°F
The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (10.8°F).
Average pressure in January
Rowan, 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
Rowan, IA
- Average wind speed in January: 11mph
The windiest month (with the highest average wind speed) is April (11.1mph).
The calmest month (with the lowest average wind speed) is July (7.3mph).
Average humidity in January
Rowan, IA
- Average humidity in January: 88%
The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is October (70%).
Average rainfall in January
Rowan, IA
- Average rainfall in January: 0.98"
The wettest month (with the highest rainfall) is June (3.98").
The driest month (with the least rainfall) is January (0.98").
Average rainfall days in January
Rowan, IA
- Average rainfall days in January: 4.8 days
The month with the highest number of rainy days is June (18.6 days).
The month with the least rainy days is February (2.8 days).
Average snowfall in January
Rowan, IA
- Average snowfall in January: 4.92"
The month with the highest snowfall is February (5.94").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in January
Rowan, IA
- Average snowfall days in January: 10.8 days
The month with the highest number of snowfall days is January (10.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Rowan, 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: 3h and 4min
The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days in January
Rowan, IA
- Average sunshine days in January: 18 days
The month with the most sunshine days is November (18.8 days).
The month with the least sunshine days is June (10 days).
Average UV index in January
Rowan, IA
- Average UV index in January: 2
The month with the highest UV index is June (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
Rowan, IA
- Average cloud cover in January: 61
The month with the most cloud cover is January (Cloud cover 61).
The months with the least cloud cover are August and September (Cloud cover 32).
Average visibility in January
Rowan, IA
- Average visibility in January: 5mi
The months with the highest visibility are February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are January, July and August (5mi).
Rowan, Iowa, USA
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