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
Lester's January weather, marked by an average high temperature of 23°F (-5°C) and an average low temperature of 9.5°F (-12.5°C), is the coldest in the year.Humidity
January is the most humid month, with an average relative humidity of 88%.Rainfall
The month with the least rainfall is January, when the rain falls for 3.4 days and typically collects 0.71" (18mm) of precipitation.Snowfall
Months with snowfall in Lester, Iowa, are January through May, October through December. In January, it is snowing for 11.3 days. Throughout January, 3.46" (88mm) of snow is accumulated. In Lester, during the entire year, snow falls for 48.3 days and aggregates up to 19.29" (490mm) of snow.Daylight
In Lester, Iowa, the average length of the day in January is 9h and 24min.On the first day of the month, sunrise is at 7:58 am and sunset at 4:59 pm. On the last day of January, in Lester, sunrise is at 7:42 am and sunset at 5:34 pm CST.
Sunshine
With an average of 4h of sunshine, January has the least sunshine of the year.UV index
January is the month with the lowest UV index, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unsafe exposure to UV radiation for the ordinary person.Note: The UV index of 1 in January translates into these instructions:
Most people face no serious problems with extended sun exposure, but those with fair skin, infants, and children always need protection. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. Enhance your sun protection with tightly woven, yet airy clothing. Be careful! The Sun's UV radiation can nearly be doubled by the reflective quality of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the coldest months?
How cold is January?
What is the most humid month?
What is the average humidity in January?
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 Lester 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?
What is the UV index intensity in January in Lester?
Average temperature in January
Lester, IA
- Average high temperature in January: 23°F
The warmest month (with the highest average high temperature) is July (81.5°F).
The month with the lowest average high temperature is January (23°F).
- Average low temperature in January: 9.5°F
The month with the highest average low temperature is July (62.8°F).
The coldest month (with the lowest average low temperature) is January (9.5°F).
Average pressure in January
Lester, 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 (29.86"Hg).
Average wind speed in January
Lester, IA
- Average wind speed in January: 10.4mph
The windiest month (with the highest average wind speed) is April (11.2mph).
The calmest month (with the lowest average wind speed) is July (7.8mph).
Average humidity in January
Lester, IA
- Average humidity in January: 88%
The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is October (67%).
Average rainfall in January
Lester, IA
- Average rainfall in January: 0.71"
The wettest month (with the highest rainfall) is June (3.43").
The driest month (with the least rainfall) is January (0.71").
Average rainfall days in January
Lester, IA
- Average rainfall days in January: 3.4 days
The month with the highest number of rainy days is June (17.3 days).
The month with the least rainy days is February (2.7 days).
Average snowfall in January
Lester, IA
- Average snowfall in January: 3.46"
The month with the highest snowfall is February (4.61").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in January
Lester, IA
- Average snowfall days in January: 11.3 days
The month with the highest number of snowfall days is December (11.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Lester, IA
- Average daylight in January: 9h and 2min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in January: 4h and 0min
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 0min).
Average sunshine days in January
Lester, IA
- Average sunshine days in January: 18.9 days
The month with the most sunshine days is November (20.1 days).
The month with the least sunshine days is June (10.1 days).
Average UV index in January
Lester, 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
Lester, IA
- Average cloud cover in January: 56
The month with the most cloud cover is January (Cloud cover 56).
The month with the least cloud cover is July (Cloud cover 28).
Average visibility in January
Lester, IA
- Average visibility in January: 5mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).
Lester, Iowa, USA
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