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 29.1°F (-1.6°C) and a low of 15.8°F (-9°C), is the coldest month.Humidity
January and June, with an average relative humidity of 82%, are the most humid months.Rainfall
The month with the least rainfall in Cromwell is January, when the rain falls for 3.7 days and typically collects 0.75" (19mm) of precipitation.Snowfall
January through May, October through December are months with snowfall in Cromwell. The month with the most snowfall is January, when snow falls for 8.7 days and typically aggregates up to 3.15" (80mm) of snow.Daylight
The average length of the day in January in Cromwell is 9h and 37min.On the first day of January in Cromwell, sunrise is at 7:42 am and sunset at 4:59 pm. On the last day of the month, sunrise is at 7:29 am and sunset at 5:32 pm CST.
Sunshine
With an average of 4.4h of sunshine, January has the least sunshine of the year.UV index
With an average maximum UV index of 1, January is the month with the lowest UV index in Cromwell. A UV Index estimate of 2, and below, represents a low threat to health from unsafe exposure to UV radiation for average individuals.Note: The maximum UV index of 1 during January leads to these instructions:
Despite most people tolerating extended sun exposure, it is critical to always protect those with sensitive skin, infants, and children. To protect against the Sun's most potent rays, avoid direct exposure around midday. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage. Be advised! The UV radiation from the Sun can be almost doubled due to the reflective properties of snow.
Frequently asked questions
What part of the year is the coldest in Cromwell?
How cold is it in Cromwell in January?
What are the most humid months in Cromwell?
What is the average humidity in January in Cromwell?
What is the driest month in Cromwell?
How many days does it rain in January in Cromwell?
What is the snowiest month in Cromwell?
How many days does it snow in January in Cromwell?
How many hours of daylight does Cromwell have in January?
What time are sunrise and sunset in January in Cromwell?
What is the month with the least sunshine in Cromwell?
How long on average sun shines in January in Cromwell?
What is the month with the lowest UV index in Cromwell?
What is the UV index reading in January in Cromwell?
Average temperature in January
Cromwell, IA
- Average high temperature in January: 29.1°F
The warmest month (with the highest average high temperature) is July (82.9°F).
The month with the lowest average high temperature is January (29.1°F).
- Average low temperature in January: 15.8°F
The month with the highest average low temperature is July (65.8°F).
The coldest month (with the lowest average low temperature) is January (15.8°F).
Average pressure in January
Cromwell, 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
Cromwell, IA
- Average wind speed in January: 10.7mph
The windiest months (with the highest average wind speed) are January and February (10.7mph).
The calmest months (with the lowest average wind speed) are July and August (7.1mph).
Average humidity in January
Cromwell, IA
- Average humidity in January: 82%
The months with the highest relative humidity are January and June (82%).
The month with the lowest relative humidity is October (71%).
Average rainfall in January
Cromwell, IA
- Average rainfall in January: 0.75"
The wettest month (with the highest rainfall) is June (4.17").
The driest month (with the least rainfall) is January (0.75").
Average rainfall days in January
Cromwell, IA
- Average rainfall days in January: 3.7 days
The month with the highest number of rainy days is May (17.4 days).
The month with the least rainy days is January (3.7 days).
Average snowfall in January
Cromwell, IA
- Average snowfall in January: 3.15"
The month with the highest snowfall is January (3.15").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in January
Cromwell, IA
- Average snowfall days in January: 8.7 days
The month with the highest number of snowfall days is January (8.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Cromwell, IA
- Average daylight in January: 9h and 4min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in January: 4h and 2min
The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 24min).
Average sunshine days in January
Cromwell, IA
- Average sunshine days in January: 18.3 days
The month with the most sunshine days is November (20.2 days).
The month with the least sunshine days is May (10.7 days).
Average UV index in January
Cromwell, IA
- Average UV index in January: 1
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in January
Cromwell, IA
- Average cloud cover in January: 53
The month with the most cloud cover is January (Cloud cover 53).
The months with the least cloud cover are July and September (Cloud cover 30).
Average visibility in January
Cromwell, IA
- Average visibility in January: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Cromwell, Iowa, USA
Weather forecast for your location
2. Allow the app to use your location
