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 high-temperature average of 27.9°F (-2.3°C) and a low-temperature average of 14.4°F (-9.8°C), is the coldest month.Humidity
The most humid month is January, with an average relative humidity of 83%.Rainfall
The month with the least rainfall is January, when the rain falls for 3.8 days and typically collects 0.47" (12mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. January is the month with the most snowfall in Polk City. Snow falls for 8.4 days and accumulates 2.2" (56mm) of snow.Daylight
In Polk City, the average length of the day in January is 9h and 34min.On the first day of January in Polk City, Iowa, sunrise is at 7:42 am and sunset at 4:54 pm. On the last day of the month, sunrise is at 7:28 am and sunset at 5:28 pm CST.
Sunshine
The month with the least sunshine in Polk City, Iowa, is January, with an average of 4.3h of sunshine.UV index
January is the month with the lowest UV index in Polk City, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a minimal health vulnerability from unsafe exposure to UV radiation for the ordinary person.Note: The maximum daily UV index, 1 in January, converts into the following recommendations:
Long-term sun exposure is typically not a concern for most. However, those with sensitive skin, infants, and children must always have protection. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection. Heed this! Snow reflection can almost augment the UV radiation of the sun by double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the coldest month in Polk City?
How cold is January in Polk City?
What is the most humid month in Polk City?
What is the average humidity in January in Polk City?
What is the driest month in Polk City?
How many days does it rain in January in Polk City?
When does it snow the most in Polk City?
How much does it snow in Polk City in January?
What is the average length of the day in January in Polk City?
What time are sunrise and sunset in January in Polk City?
What is the month with the least sunshine in Polk City?
How many hours of sunshine does Polk City have in January?
What is the month with the lowest UV index in Polk City?
How high is the UV index in January in Polk City?
Average temperature in January
Polk City, IA
- Average high temperature in January: 27.9°F
The warmest month (with the highest average high temperature) is July (82.4°F).
The month with the lowest average high temperature is January (27.9°F).
- Average low temperature in January: 14.4°F
The month with the highest average low temperature is July (65.1°F).
The coldest month (with the lowest average low temperature) is January (14.4°F).
Average pressure in January
Polk City, 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 (29.88"Hg).
Average wind speed in January
Polk City, IA
- Average wind speed in January: 10.3mph
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 (7mph).
Average humidity in January
Polk City, IA
- Average humidity in January: 83%
The month with the highest relative humidity is January (83%).
The month with the lowest relative humidity is October (70%).
Average rainfall in January
Polk City, IA
- Average rainfall in January: 0.47"
The wettest months (with the highest rainfall) are May and June (2.52").
The driest month (with the least rainfall) is January (0.47").
Average rainfall days in January
Polk City, IA
- Average rainfall days in January: 3.8 days
The month with the highest number of rainy days is May (16.3 days).
The month with the least rainy days is February (3.5 days).
Average snowfall in January
Polk City, IA
- Average snowfall in January: 2.2"
The month with the highest snowfall is January (2.2").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in January
Polk City, IA
- Average snowfall days in January: 8.4 days
The month with the highest number of snowfall days is January (8.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Polk City, 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 and 2min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 18min).
Average sunshine days in January
Polk City, IA
- Average sunshine days in January: 20.6 days
The month with the most sunshine days is December (22.8 days).
The month with the least sunshine days is June (11.2 days).
Average UV index in January
Polk City, 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
Polk City, IA
- Average cloud cover in January: 53
The month with the most cloud cover is January (Cloud cover 53).
The month with the least cloud cover is September (Cloud cover 28).
Average visibility in January
Polk City, 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).
Polk City, Iowa, USA
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