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 Onslow, Iowa, January is the month with the lowest recorded average temperatures, measuring a high of 25.2°F (-3.8°C) and a low of 13.3°F (-10.4°C).Humidity
The months with the highest humidity are January and February, with an average relative humidity of 86%.Rainfall
The months with the least rainfall are January and February Rain falls for 5.2 days and accumulates 1.26" (32mm) of rain.Snowfall
January through April, October through December are months with snowfall in Onslow. The month with the most snowfall in Onslow is January, when snow falls for 12.1 days and typically aggregates up to 5.04" (128mm) of snow.Daylight
In Onslow, the average length of the day in January is 9h and 32min.On the first day of the month, sunrise is at 7:32 am and sunset at 4:42 pm. On the last day of January, in Onslow, sunrise is at 7:18 am and sunset at 5:16 pm CST.
Sunshine
The month with the least sunshine in Onslow is January, with an average of 3.8h of sunshine.UV index
The months with the lowest UV index in Onslow are January and December, with an average maximum UV index of 1. A UV Index value of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV radiation for ordinary individuals.Note: A daily maximum UV index of 1 in January translates into the following instructions:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. Opt for tightly woven and loose clothing to enhance protection from the Sun. Mind this! Nearly twice the UV radiation from the Sun can be reflected by the snow.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
What part of the year is the coldest in Onslow?
How cold is it in Onslow in January?
What is the most humid month in Onslow?
What is the average humidity in January in Onslow?
What is the driest month in Onslow?
How much does it rain in Onslow in January?
What is the snowiest month in Onslow?
How much does it snow in Onslow in January?
What is the average length of the day in January in Onslow?
When are sunrise and sunset in January in Onslow?
What is the month with the least sunshine in Onslow?
How long on average sun shines in January in Onslow?
When is the lowest UV index in Onslow?
What is the UV index intensity in January in Onslow?
Average temperature in January
Onslow, IA
- Average high temperature in January: 25.2°F
The warmest month (with the highest average high temperature) is July (80.1°F).
The month with the lowest average high temperature is January (25.2°F).
- Average low temperature in January: 13.3°F
The month with the highest average low temperature is July (63.3°F).
The coldest month (with the lowest average low temperature) is January (13.3°F).
Average pressure in January
Onslow, IA
- Average pressure in January: 30.13"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in January
Onslow, IA
- Average wind speed in January: 10.4mph
The windiest month (with the highest average wind speed) is April (10.7mph).
The calmest month (with the lowest average wind speed) is August (6.9mph).
Average humidity in January
Onslow, IA
- Average humidity in January: 86%
The months with the highest relative humidity are January and February (86%).
The month with the lowest relative humidity is October (74%).
Average rainfall in January
Onslow, IA
- Average rainfall in January: 1.26"
The wettest month (with the highest rainfall) is May (4.25").
The driest months (with the least rainfall) are January and February (1.26").
Average rainfall days in January
Onslow, IA
- Average rainfall days in January: 5.2 days
The month with the highest number of rainy days is May (18.6 days).
The month with the least rainy days is January (5.2 days).
Average snowfall in January
Onslow, IA
- Average snowfall in January: 5.04"
The month with the highest snowfall is January (5.04").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in January
Onslow, IA
- Average snowfall days in January: 12.1 days
The month with the highest number of snowfall days is January (12.1 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Onslow, 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 12min).
- Average sunshine in January: 3h and 5min
The months with the most sunshine are July and August (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days in January
Onslow, IA
- Average sunshine days in January: 15.8 days
The month with the most sunshine days is September (17 days).
The month with the least sunshine days is June (10.5 days).
Average UV index in January
Onslow, IA
- Average UV index in January: 1
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in January
Onslow, IA
- Average cloud cover in January: 60
The month with the most cloud cover is January (Cloud cover 60).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in January
Onslow, IA
- Average visibility in January: 5mi
The months with the highest visibility are February, March, April, May, June, August, September, October, November and December (6mi).
The months with the lowest visibility are January and July (5mi).
Onslow, Iowa, USA
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