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
In Ollie, January is the month with the lowest recorded average temperatures, measuring a high of 28.6°F (-1.9°C) and a low of 15.6°F (-9.1°C).Humidity
The average relative humidity in January in Ollie is 82%.Rainfall
In Ollie, Iowa, during January, the rain falls for 5.8 days and regularly aggregates up to 1.06" (27mm) of precipitation. In Ollie, during the entire year, the rain falls for 137.9 days and collects up to 27.76" (705mm) of precipitation.Snowfall
Months with snowfall in Ollie are January through May, October through December. January is the month with the most snowfall in Ollie, Iowa. Snow falls for 9.5 days and accumulates 4.06" (103mm) of snow.Daylight
The average length of the day in January is 9h and 37min.On the first day of January in Ollie, sunrise is at 7:33 am and sunset at 4:49 pm. On the last day of the month, sunrise is at 7:20 am and sunset at 5:23 pm CST.
Sunshine
With an average of 4.2h of sunshine, January has the least sunshine of the year.UV index
The months with the lowest UV index in Ollie are January, February, October through December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a low threat to health from exposure to the Sun's UV rays for the average person.Note: A maximum daily UV index of 2 during January morphs into the following directions:
While extended sun exposure does not significantly affect most people, those with sensitive skin, children, and infants should always be protected. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly. Take heed! Reflection from the snow can almost amplify the Sun's UV radiation by double.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
What part of the year is the coldest in Ollie?
How cold is January in Ollie?
What is the average humidity in January in Ollie?
How many days does it rain in January in Ollie?
When does it snow the most in Ollie?
How many days does it snow in January in Ollie?
How many hours of daylight does Ollie have in January?
When is the sunrise / sunset in January in Ollie?
What is the month with the least sunshine in Ollie?
How long on average sun shines in January in Ollie?
What are the months with the lowest UV index in Ollie?
How high is the UV index in January in Ollie?
Average temperature in January
Ollie, IA
- Average high temperature in January: 28.6°F
The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (28.6°F).
- Average low temperature in January: 15.6°F
The month with the highest average low temperature is July (65.1°F).
The coldest month (with the lowest average low temperature) is January (15.6°F).
Average pressure in January
Ollie, 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 (29.89"Hg).
Average wind speed in January
Ollie, IA
- Average wind speed in January: 10.7mph
The windiest month (with the highest average wind speed) is January (10.7mph).
The calmest month (with the lowest average wind speed) is August (6.9mph).
Average humidity in January
Ollie, IA
- Average humidity in January: 82%
The month with the highest relative humidity is July (83%).
The month with the lowest relative humidity is October (72%).
Average rainfall in January
Ollie, IA
- Average rainfall in January: 1.06"
The wettest month (with the highest rainfall) is May (4.17").
The driest month (with the least rainfall) is February (0.98").
Average rainfall days in January
Ollie, IA
- Average rainfall days in January: 5.8 days
The month with the highest number of rainy days is May (17.7 days).
The month with the least rainy days is February (4.9 days).
Average snowfall in January
Ollie, IA
- Average snowfall in January: 4.06"
The month with the highest snowfall is January (4.06").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in January
Ollie, IA
- Average snowfall days in January: 9.5 days
The month with the highest number of snowfall days is January (9.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Ollie, 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 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 12min).
Average sunshine days in January
Ollie, IA
- Average sunshine days in January: 16.6 days
The month with the most sunshine days is December (19.1 days).
The month with the least sunshine days is June (10.3 days).
Average UV index in January
Ollie, IA
- Average UV index in January: 2
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, October, November and December (UV index 2).
Average cloud cover in January
Ollie, 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 August and September (Cloud cover 29).
Average visibility in January
Ollie, 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).
Ollie, Iowa, USA
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