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
The coldest period is January, when temperatures fluctuate between an average high of 25.2°F (-3.8°C) and a low of 12.7°F (-10.7°C).Humidity
With an average relative humidity of 85%, January is the most humid month in Rockwell City.Rainfall
The month with the least rainfall is January, when the rain falls for 4 days and typically collects 0.91" (23mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In Rockwell City, during January, snow falls for 9.3 days and regularly aggregates up to 4.41" (112mm) of snow. In Rockwell City, during the entire year, snow falls for 39.2 days and aggregates up to 17.64" (448mm) of snow.Daylight
In January, the average length of the day in Rockwell City is 9h and 30min.On the first day of the month, sunrise is at 7:47 am and sunset at 4:56 pm. On the last day of January, sunrise is at 7:33 am and sunset at 5:30 pm CST.
Sunshine
With an average of 4.1h of sunshine, January has the least sunshine of the year in Rockwell City.UV index
The average daily maximum UV index in January in Rockwell City is 2. A UV Index estimate of 2, and below, represents a low threat to health from exposure to the Sun's UV radiation for average individuals.Note: In January, the average maximum UV index of 2 translates into the following recommendations:
Despite most people tolerating extended sun exposure, it is critical to always protect those with sensitive skin, infants, and children. The Sun's radiation is especially intense around midday; try to stay in shade during this period. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes. Be informed! The Sun's UV radiation can be nearly doubled due to the reflection from snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What time of the year is the coldest in Rockwell City?
How cold is it in Rockwell City in January?
What is the most humid month in Rockwell City?
What is the average humidity in January in Rockwell City?
What is the driest month in Rockwell City?
How many days does it rain in January in Rockwell City?
How much does it snow in Rockwell City in January?
What is the average length of the day in January in Rockwell City?
When are sunrise and sunset in January in Rockwell City?
What is the month with the least sunshine in Rockwell City?
How many hours of sunshine does Rockwell City have in January?
How high is the UV index in January in Rockwell City?
Average temperature in January
Rockwell City, IA
- Average high temperature in January: 25.2°F
The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (25.2°F).
- Average low temperature in January: 12.7°F
The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (12.7°F).
Average pressure in January
Rockwell City, 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 (29.88"Hg).
Average wind speed in January
Rockwell 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 month (with the lowest average wind speed) is July (7.2mph).
Average humidity in January
Rockwell City, 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
Rockwell City, IA
- Average rainfall in January: 0.91"
The wettest month (with the highest rainfall) is June (3.98").
The driest month (with the least rainfall) is January (0.91").
Average rainfall days in January
Rockwell City, IA
- Average rainfall days in January: 4 days
The month with the highest number of rainy days is June (17.6 days).
The month with the least rainy days is February (3 days).
Average snowfall in January
Rockwell City, IA
- Average snowfall in January: 4.41"
The month with the highest snowfall is February (5.31").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in January
Rockwell City, IA
- Average snowfall days in January: 9.3 days
The month with the highest number of snowfall days is February (9.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Rockwell City, IA
- Average daylight in January: 9h and 3min
The month with the longest days is June (Average daylight: 15h and 12min).
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 18min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).
Average sunshine days in January
Rockwell City, IA
- Average sunshine days in January: 19 days
The month with the most sunshine days is November (19.9 days).
The month with the least sunshine days is June (9.9 days).
Average UV index in January
Rockwell City, IA
- Average UV index in January: 2
The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is February (UV index 1).
Average cloud cover in January
Rockwell City, IA
- Average cloud cover in January: 55
The month with the most cloud cover is January (Cloud cover 55).
The months with the least cloud cover are July and September (Cloud cover 30).
Average visibility in January
Rockwell City, 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).
Rockwell City, Iowa, USA
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