January weather forecastMarengo, IA
January
Weather in January
January, the same as December, in Marengo, Iowa, is another subzero cold winter month, with an average temperature ranging between max 27°F (-2.8°C) and min 14.4°F (-9.8°C).Temperature
Marengo's January weather reaches an average high of 27°F (-2.8°C) and an average low of 14.4°F (-9.8°C), making it the coldest month.Humidity
The months with the highest humidity are January, February and July, with an average relative humidity of 84%.Rainfall
The month with the least rainfall is January, when the rain falls for 4.9 days and typically collects 1.14" (29mm) of precipitation.Snowfall
January through May, October through December are months with snowfall in Marengo, Iowa. January is the month with the most snowfall in Marengo. Snow falls for 9.4 days and accumulates 5" (127mm) of snow.Daylight
In Marengo, the average length of the day in January is 9h and 34min.On the first day of the month, sunrise is at 7:35 am and sunset at 4:47 pm. On the last day of January, in Marengo, sunrise is at 7:21 am and sunset at 5:21 pm CST.
Sunshine
The month with the least sunshine is January, with an average of 4.1h of sunshine.UV index
With an average maximum UV index of 1, January is the month with the lowest UV index in Marengo. A UV Index estimate of 2, and below, represents a minimal health vulnerability from unsafe exposure to UV radiation for average individuals.Note: In January, a daily maximum UV index of 1 leads to the following instructions:
While most individuals can withstand prolonged sun exposure, it is imperative that babies, children, and those with sensitive skin always be shielded. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly. Foresee this! The reflection from snow can nearly double the intensity of UV radiation from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Marengo, IA
- Average high temperature in January: 27°F
The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (27°F).
- Average low temperature in January: 14.4°F
The month with the highest average low temperature is July (64.8°F).
The coldest month (with the lowest average low temperature) is January (14.4°F).
Average pressure in January
Marengo, IA
- Average pressure in January: 30.14"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed in January
Marengo, IA
- Average wind speed in January: 10.7mph
The windiest months (with the highest average wind speed) are January and April (10.7mph).
The calmest months (with the lowest average wind speed) are July and August (7mph).
Average humidity in January
Marengo, IA
- Average humidity in January: 84%
The months with the highest relative humidity are January, February and July (84%).
The month with the lowest relative humidity is October (72%).
Average rainfall in January
Marengo, IA
- Average rainfall in January: 1.14"
The wettest month (with the highest rainfall) is May (4.33").
The driest month (with the least rainfall) is January (1.14").
Average rainfall days in January
Marengo, IA
- Average rainfall days in January: 4.9 days
The month with the highest number of rainy days is June (18.8 days).
The month with the least rainy days is February (4.3 days).
Average snowfall in January
Marengo, IA
- Average snowfall in January: 5"
The month with the highest snowfall is January (5").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in January
Marengo, IA
- Average snowfall days in January: 9.4 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
Marengo, IA
- Average daylight in January: 9h and 36min
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 12min).
- Average sunshine in January: 4h and 6min
The month with the most sunshine is July (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).
Average sunshine days in January
Marengo, IA
- Average sunshine days in January: 18.3 days
The month with the most sunshine days is January (18.3 days).
The month with the least sunshine days is June (9.6 days).
Average UV index in January
Marengo, IA
- Average UV index in January: 1
The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in January
Marengo, IA
- Average cloud cover in January: 56
The month with the most cloud cover is January (Cloud cover 56).
The months with the least cloud cover are August and September (Cloud cover 30).
Average visibility in January
Marengo, IA
- Average visibility in January: 6mi
The months with the highest visibility are January, February, March, April, May, June, August, September, October, November and December (6mi).
The month with the lowest visibility is July (5mi).
