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 month of January sees the lowest average temperatures, reaching 25.5°F (-3.6°C) at the peak and 13.3°F (-10.4°C) at the low.Humidity
The most humid month is January, with an average relative humidity of 84%.Rainfall
January is the month with the least rainfall. Rain falls for 2.3 days and accumulates 0.24" (6mm) of precipitation.Snowfall
Months with snowfall are January through April, October through December. In Arthur, Iowa, in January, snow falls for 7.7 days, with typically accumulated 0.98" (25mm) of snow. In Arthur, Iowa, during the entire year, snow falls for 30.1 days and aggregates up to 4.49" (114mm) of snow.Daylight
The average length of the day in January is 9h and 31min.On the first day of January, sunrise is at 7:50 am and sunset at 4:59 pm. On the last day of the month, sunrise is at 7:35 am and sunset at 5:33 pm CST.
Sunshine
With an average of 4.2h of sunshine, January has the least sunshine of the year.UV index
January and February, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index reading of 2, and below, represents a minimal health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.Note: An average UV index of 1 in January transforms into this advice:
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. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. Experience reduced UV exposure by about half when donning a wide-brim hat. Be aware! The intensity of the Sun's UV radiation can be amplified nearly twice due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the coldest month?
How cold is it in January?
What is the most humid month?
What is the average humidity in January in Arthur?
What is the driest month?
How much does it rain in January?
How much does it snow in January?
How many hours of daylight does Arthur have in January?
When is the sunrise / sunset in January?
What is the month with the least sunshine?
How long on average sun shines in January?
What is the month with the lowest UV index in Arthur?
What is the UV index reading in January?
Average temperature in January
Arthur, IA
- Average high temperature in January: 25.5°F
The warmest month (with the highest average high temperature) is July (81.9°F).
The month with the lowest average high temperature is January (25.5°F).
- Average low temperature in January: 13.3°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 (13.3°F).
Average pressure in January
Arthur, 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 (29.87"Hg).
Average wind speed in January
Arthur, IA
- Average wind speed in January: 11mph
The windiest month (with the highest average wind speed) is April (11.2mph).
The calmest month (with the lowest average wind speed) is July (7.5mph).
Average humidity in January
Arthur, IA
- Average humidity in January: 84%
The month with the highest relative humidity is January (84%).
The months with the lowest relative humidity are April and October (67%).
Average rainfall in January
Arthur, IA
- Average rainfall in January: 0.24"
The wettest month (with the highest rainfall) is May (1.57").
The driest month (with the least rainfall) is January (0.24").
Average rainfall days in January
Arthur, IA
- Average rainfall days in January: 2.3 days
The month with the highest number of rainy days is May (13.8 days).
The months with the least rainy days are January and February (2.3 days).
Average snowfall in January
Arthur, IA
- Average snowfall in January: 0.98"
The month with the highest snowfall is February (1.26").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in January
Arthur, IA
- Average snowfall days in January: 7.7 days
The month with the highest number of snowfall days is January (7.7 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
Arthur, 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 30min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).
Average sunshine days in January
Arthur, IA
- Average sunshine days in January: 22.4 days
The month with the most sunshine days is November (23 days).
The month with the least sunshine days is May (14.2 days).
Average UV index in January
Arthur, 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 February (UV index 1).
Average cloud cover in January
Arthur, IA
- Average cloud cover in January: 55
The month with the most cloud cover is January (Cloud cover 55).
The month with the least cloud cover is July (Cloud cover 27).
Average visibility in January
Arthur, 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).
Arthur, Iowa, USA
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