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
Green Island reaches its lowest average temperatures in January, measuring 25.7°F (-3.5°C) at the peak and 13.1°F (-10.5°C) at the lowest.Humidity
The most humid month is January, with an average relative humidity of 87%.Rainfall
The month with the least rainfall is January, when the rain falls for 5.4 days and typically collects 1.22" (31mm) of precipitation.Snowfall
Months with snowfall are January through April, October through December. January is the month with the most snowfall. Snow falls for 10.6 days and accumulates 4.61" (117mm) of snow.Daylight
The average length of the day in January is 9h and 31min.On the first day of the month, sunrise is at 7:29 am and sunset at 4:39 pm. On the last day of January, sunrise is at 7:15 am and sunset at 5:13 pm CST.
Sunshine
The month with the least sunshine is January, with an average of 3.7h of sunshine.UV index
The months with the lowest UV index are January and December, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a low health risk from exposure to the Sun's UV radiation for the average person.Note: In January, a regular UV index of 1 translates into these guidelines:
Despite the majority tolerating prolonged sun exposure, those with sensitive skin, infants, and children demand continual protection. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense. Consider carefully! The reflective quality of snow can almost double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What time of the year is the coldest in Green Island?
How cold is it in January?
What is the most humid month?
What is the average humidity in January in Green Island?
What is the driest month?
How much does it rain in January?
What is the snowiest month?
How much does it snow in January?
How many hours of daylight does Green Island 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?
When is the lowest UV index?
What is the UV index intensity in January?
Average temperature in January
Green Island, IA
- Average high temperature in January: 25.7°F
The warmest month (with the highest average high temperature) is July (79.9°F).
The month with the lowest average high temperature is January (25.7°F).
- Average low temperature in January: 13.1°F
The month with the highest average low temperature is July (63.5°F).
The coldest month (with the lowest average low temperature) is January (13.1°F).
Average pressure in January
Green Island, 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
Green Island, IA
- Average wind speed in January: 9.9mph
The windiest month (with the highest average wind speed) is April (10.3mph).
The calmest month (with the lowest average wind speed) is August (6.6mph).
Average humidity in January
Green Island, IA
- Average humidity in January: 87%
The month with the highest relative humidity is January (87%).
The month with the lowest relative humidity is October (75%).
Average rainfall in January
Green Island, IA
- Average rainfall in January: 1.22"
The wettest month (with the highest rainfall) is May (4.13").
The driest month (with the least rainfall) is January (1.22").
Average rainfall days in January
Green Island, IA
- Average rainfall days in January: 5.4 days
The month with the highest number of rainy days is May (19.8 days).
The month with the least rainy days is February (4.5 days).
Average snowfall in January
Green Island, IA
- Average snowfall in January: 4.61"
The month with the highest snowfall is January (4.61").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in January
Green Island, IA
- Average snowfall days in January: 10.6 days
The month with the highest number of snowfall days is January (10.6 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
Green Island, 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 4min
The month with the most sunshine is July (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days in January
Green Island, IA
- Average sunshine days in January: 16.6 days
The month with the most sunshine days is November (19 days).
The month with the least sunshine days is May (9.5 days).
Average UV index in January
Green Island, IA
- Average UV index in January: 1
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in January
Green Island, IA
- Average cloud cover in January: 61
The month with the most cloud cover is January (Cloud cover 61).
The months with the least cloud cover are August and September (Cloud cover 32).
Average visibility in January
Green Island, 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).
Green Island, Iowa, USA
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