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
With average high temperatures of 28.4°F (-2°C) and lows of 19°F (-7.2°C), January is the coldest month.Humidity
January is the most humid month, with an average relative humidity of 87%.Rainfall
In January, in Jamestown, the rain falls for 4.6 days. Throughout January, 0.71" (18mm) of precipitation is accumulated. In Jamestown, during the entire year, the rain falls for 115 days and collects up to 10.59" (269mm) of precipitation.Snowfall
Months with snowfall in Jamestown are January through April, October through December. January is the month with the most snowfall in Jamestown. Snow falls for 18.5 days and accumulates 2.4" (61mm) of snow.Daylight
In Jamestown, the average length of the day in January is 9h and 28min.On the first day of the month, sunrise is at 8:13 am and sunset at 5:19 pm. On the last day of January, sunrise is at 7:59 am and sunset at 5:54 pm EST.
Sunshine
The month with the least sunshine is January, with an average of 2.4h 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 estimate of 2, and below, represents a low threat to health from exposure to the Sun's UV rays for the ordinary person.Note: In January, the maximum UV index of 1 transforms into these recommendations:
Extended exposure to the sun should always be avoided by children, infants, and those with sensitive skin. To guard against the harmful effects of the Sun, minimize exposure during midday. Employ a wide-brim hat for potent defense against up to 50% of UV rays. Warning! The reflection from snow can nearly magnify the Sun's UV radiation twofold.
Frequently asked questions
What part of the year is the coldest in Jamestown?
How cold is it in Jamestown in January?
What is the most humid month in Jamestown?
What is the average humidity in January in Jamestown?
How much does it rain in Jamestown in January?
When does it snow the most in Jamestown?
How many days does it snow in January in Jamestown?
What is the average length of the day in January in Jamestown?
When are sunrise and sunset in January in Jamestown?
What is the month with the least sunshine in Jamestown?
How long on average sun shines in January in Jamestown?
When is the lowest UV index in Jamestown?
How high is the UV index in January in Jamestown?
Average temperature in January
Jamestown, MI
- Average high temperature in January: 28.4°F
The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (28.4°F).
- Average low temperature in January: 19°F
The month with the highest average low temperature is July (62.2°F).
The coldest month (with the lowest average low temperature) is January (19°F).
Average pressure in January
Jamestown, MI
- Average pressure in January: 30.07"Hg
The month with the highest atmospheric pressure is March (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in January
Jamestown, MI
- Average wind speed in January: 9.9mph
The windiest months (with the highest average wind speed) are January, February and April (9.9mph).
The calmest month (with the lowest average wind speed) is July (6.6mph).
Average humidity in January
Jamestown, MI
- Average humidity in January: 87%
The month with the highest relative humidity is January (87%).
The month with the lowest relative humidity is April (75%).
Average rainfall in January
Jamestown, MI
- Average rainfall in January: 0.71"
The wettest month (with the highest rainfall) is October (1.3").
The driest month (with the least rainfall) is February (0.59").
Average rainfall days in January
Jamestown, MI
- Average rainfall days in January: 4.6 days
The month with the highest number of rainy days is October (14 days).
The month with the least rainy days is February (3.4 days).
Average snowfall in January
Jamestown, MI
- Average snowfall in January: 2.4"
The month with the highest snowfall is January (2.4").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in January
Jamestown, MI
- Average snowfall days in January: 18.5 days
The month with the highest number of snowfall days is January (18.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Jamestown, MI
- Average daylight in January: 9h and 3min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in January: 2h and 2min
The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 2h and 24min).
Average sunshine days in January
Jamestown, MI
- Average sunshine days in January: 10.2 days
The month with the most sunshine days is March (17.8 days).
The month with the least sunshine days is January (10.2 days).
Average UV index in January
Jamestown, MI
- Average UV index in January: 1
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in January
Jamestown, MI
- Average cloud cover in January: 75
The month with the most cloud cover is January (Cloud cover 75).
The month with the least cloud cover is July (Cloud cover 28).
Average visibility in January
Jamestown, MI
- Average visibility in January: 5mi
The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January and February (5mi).
Jamestown, Michigan, USA
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