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, with its average high-temperature of 26.8°F (-2.9°C) and an average low-temperature of 14.4°F (-9.8°C), holds the record as the coldest month.Humidity
The most humid month in Princeton is January, with an average relative humidity of 85%.Rainfall
The months with the least rainfall are January and February Rain falls for 5.6 days and accumulates 1.34" (34mm) of rain.Snowfall
Months with snowfall are January through April, October through December. January is the month with the most snowfall. Snow falls for 12.3 days and accumulates 4.8" (122mm) of snow.Daylight
In Princeton, the average length of the day in January is 9h and 34min.On the first day of January in Princeton, sunrise is at 7:28 am and sunset at 4:41 pm. On the last day of the month, sunrise is at 7:14 am and sunset at 5:15 pm CST.
Sunshine
The month with the least sunshine is January, with an average of 4h of sunshine.UV index
With an average maximum UV index of 1, January is the month with the lowest UV index. A UV Index reading of 2, and below, represents a low threat to health from exposure to the Sun's UV radiation for ordinary individuals.Note: An average UV index of 1 in January transforms into this advice:
Long-term sun exposure is typically not a concern for most. However, those with sensitive skin, infants, and children must always have protection. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days. Be aware! The intensity of the Sun's UV radiation can be amplified nearly twice due to snow reflection.
Frequently asked questions
What is the coldest month in Princeton?
How cold is January in Princeton?
What is the most humid month in Princeton?
What is the average humidity in January in Princeton?
What is the driest month in Princeton?
How many days does it rain in January in Princeton?
What is the snowiest month in Princeton?
How many days does it snow in January in Princeton?
How many hours of daylight does Princeton have in January?
What time are sunrise and sunset in January in Princeton?
What is the month with the least sunshine in Princeton?
How many hours of sunshine does Princeton have in January?
When is the lowest UV index in Princeton?
What is the UV index intensity in January in Princeton?
Average temperature in January
Princeton, IA
- Average high temperature in January: 26.8°F
The warmest month (with the highest average high temperature) is July (80.4°F).
The month with the lowest average high temperature is January (26.8°F).
- Average low temperature in January: 14.4°F
The month with the highest average low temperature is July (64.2°F).
The coldest month (with the lowest average low temperature) is January (14.4°F).
Average pressure in January
Princeton, 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 (29.91"Hg).
Average wind speed in January
Princeton, IA
- Average wind speed in January: 10.2mph
The windiest month (with the highest average wind speed) is April (10.4mph).
The calmest months (with the lowest average wind speed) are July and August (6.6mph).
Average humidity in January
Princeton, IA
- Average humidity in January: 85%
The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is October (73%).
Average rainfall in January
Princeton, IA
- Average rainfall in January: 1.34"
The wettest month (with the highest rainfall) is May (4.45").
The driest months (with the least rainfall) are January and February (1.34").
Average rainfall days in January
Princeton, IA
- Average rainfall days in January: 5.6 days
The month with the highest number of rainy days is May (18 days).
The month with the least rainy days is February (5.5 days).
Average snowfall in January
Princeton, IA
- Average snowfall in January: 4.8"
The month with the highest snowfall is January (4.8").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in January
Princeton, IA
- Average snowfall days in January: 12.3 days
The month with the highest number of snowfall days is January (12.3 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
Princeton, IA
- Average daylight in January: 9h and 4min
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: 4h
The month with the most sunshine is August (Average sunshine: 10h).
The month with the least sunshine is January (Average sunshine: 4h).
Average sunshine days in January
Princeton, IA
- Average sunshine days in January: 15.1 days
The month with the most sunshine days is November (18 days).
The month with the least sunshine days is June (10.3 days).
Average UV index in January
Princeton, IA
- Average UV index in January: 1
The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in January
Princeton, IA
- Average cloud cover in January: 58
The month with the most cloud cover is January (Cloud cover 58).
The months with the least cloud cover are August and September (Cloud cover 30).
Average visibility in January
Princeton, 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).
Princeton, Iowa, USA
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