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
January, known for its average high temperature of 25.3°F (-3.7°C) and an average low temperature of 13.1°F (-10.5°C), is the coldest month.Humidity
With an average relative humidity of 86%, January is the most humid month in Garrison.Rainfall
In Garrison, during January, the rain falls for 3.5 days and regularly aggregates up to 0.43" (11mm) of precipitation. In Garrison, during the entire year, the rain falls for 103.1 days and collects up to 10.63" (270mm) of precipitation.Snowfall
January through April, October through December are months with snowfall. The month with the most snowfall is January, when snow falls for 7.4 days and typically aggregates up to 1.73" (44mm) of snow.Daylight
In Garrison, the average length of the day in January is 9h and 31min.On the first day of January in Garrison, sunrise is at 7:36 am and sunset at 4:47 pm. On the last day of the month, sunrise is at 7:22 am and sunset at 5:21 pm CST.
Sunshine
With an average of 3.9h of sunshine, January has the least sunshine of the year in Garrison.UV index
The average daily maximum UV index in January is 2. A UV Index of 2, and less, symbolizes a low health risk from exposure to the Sun's UV radiation for ordinary individuals.Note: The UV index of 2 during January translates into the following guidance:
Long-term sun exposure is typically not a concern for most. However, those with sensitive skin, infants, and children must always have protection. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage. Take to heart! Snow reflection can almost magnify the Sun's UV radiation twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What part of the year is the coldest in Garrison?
How cold is it in Garrison in January?
What is the most humid month in Garrison?
What is the average humidity in January in Garrison?
How much does it rain in Garrison in January?
When does it snow the most in Garrison?
How many days does it snow in January in Garrison?
How many hours of daylight does Garrison have in January?
When are sunrise and sunset in January in Garrison?
What is the month with the least sunshine in Garrison?
How many hours of sunshine does Garrison have in January?
What is the UV index intensity in January in Garrison?
Average temperature in January
Garrison, IA
- Average high temperature in January: 25.3°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 (25.3°F).
- Average low temperature in January: 13.1°F
The month with the highest average low temperature is July (64.4°F).
The coldest month (with the lowest average low temperature) is January (13.1°F).
Average pressure in January
Garrison, 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
Garrison, IA
- Average wind speed in January: 10.5mph
The windiest month (with the highest average wind speed) is April (10.8mph).
The calmest months (with the lowest average wind speed) are July and August (7mph).
Average humidity in January
Garrison, IA
- Average humidity in January: 86%
The month with the highest relative humidity is January (86%).
The month with the lowest relative humidity is October (72%).
Average rainfall in January
Garrison, IA
- Average rainfall in January: 0.43"
The wettest month (with the highest rainfall) is May (1.85").
The driest month (with the least rainfall) is February (0.39").
Average rainfall days in January
Garrison, IA
- Average rainfall days in January: 3.5 days
The month with the highest number of rainy days is June (13.9 days).
The month with the least rainy days is February (3.4 days).
Average snowfall in January
Garrison, IA
- Average snowfall in January: 1.73"
The month with the highest snowfall is January (1.73").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in January
Garrison, IA
- Average snowfall days in January: 7.4 days
The month with the highest number of snowfall days is February (7.8 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
Garrison, 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 month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days in January
Garrison, IA
- Average sunshine days in January: 21.8 days
The month with the most sunshine days is December (21.9 days).
The month with the least sunshine days is June (13.4 days).
Average UV index in January
Garrison, IA
- Average UV index in January: 2
The month with the highest UV index is June (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in January
Garrison, IA
- Average cloud cover in January: 59
The month with the most cloud cover is January (Cloud cover 59).
The months with the least cloud cover are August and September (Cloud cover 31).
Average visibility in January
Garrison, 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).
Garrison, Iowa, USA
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