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, on average, is the coldest month, registering a high temperature of 22.5°F (-5.3°C) and a low of 10°F (-12.2°C).Humidity
January and February, with an average relative humidity of 89%, are the most humid months.Rainfall
The month with the least rainfall is January, when the rain falls for 2.6 days and typically collects 0.28" (7mm) of precipitation.Snowfall
January through April, October through December are months with snowfall in Merrimac. The month with the most snowfall is January, when snow falls for 9.8 days and typically aggregates up to 1.38" (35mm) of snow.Daylight
In January, the average length of the day in Merrimac is 9h and 25min.On the first day of the month, sunrise is at 7:30 am and sunset at 4:32 pm. On the last day of January, in Merrimac, sunrise is at 7:15 am and sunset at 5:08 pm CST.
Sunshine
The month with the least sunshine is January, with an average of 3.2h of sunshine.UV index
January, November and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a low threat to health from unsafe exposure to UV radiation for ordinary individuals.Note: In January, the UV index of 1 transforms into the following advice:
It is important to always shield children, babies, and individuals with sensitive skin from prolonged exposure to the sun. It's recommended to limit sun exposure when its radiation is at its peak during midday. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation. Note this! The Sun's UV radiation can nearly be doubled by the reflection off snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the coldest months in Merrimac?
How cold is it in Merrimac in January?
What is the most humid month in Merrimac?
What is the average humidity in January in Merrimac?
What is the driest month in Merrimac?
How many days does it rain in January in Merrimac?
When does it snow the most in Merrimac?
How much does it snow in Merrimac in January?
How many hours of daylight does Merrimac have in January?
What time are sunrise and sunset in January in Merrimac?
What is the month with the least sunshine in Merrimac?
How long on average sun shines in January in Merrimac?
When is the lowest UV index in Merrimac?
What is the UV index intensity in January in Merrimac?
Average temperature in January
Merrimac, WI
- Average high temperature in January: 22.5°F
The warmest month (with the highest average high temperature) is July (79°F).
The month with the lowest average high temperature is January (22.5°F).
- Average low temperature in January: 10°F
The month with the highest average low temperature is July (61.3°F).
The coldest month (with the lowest average low temperature) is January (10°F).
Average pressure in January
Merrimac, WI
- Average pressure in January: 30.11"Hg
The months with the highest atmospheric pressure are January and February (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in January
Merrimac, WI
- Average wind speed in January: 9.5mph
The windiest month (with the highest average wind speed) is April (9.8mph).
The calmest month (with the lowest average wind speed) is August (6.5mph).
Average humidity in January
Merrimac, WI
- Average humidity in January: 89%
The months with the highest relative humidity are January and February (89%).
The months with the lowest relative humidity are April and October (77%).
Average rainfall in January
Merrimac, WI
- Average rainfall in January: 0.28"
The wettest month (with the highest rainfall) is July (0.98").
The driest month (with the least rainfall) is January (0.28").
Average rainfall days in January
Merrimac, WI
- Average rainfall days in January: 2.6 days
The month with the highest number of rainy days is May (11.8 days).
The month with the least rainy days is February (2.2 days).
Average snowfall in January
Merrimac, WI
- Average snowfall in January: 1.38"
The month with the highest snowfall is January (1.38").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in January
Merrimac, WI
- Average snowfall days in January: 9.8 days
The month with the highest number of snowfall days is January (9.8 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
Merrimac, WI
- 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: 3h and 1min
The month with the most sunshine is July (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 12min).
Average sunshine days in January
Merrimac, WI
- Average sunshine days in January: 23.2 days
The month with the most sunshine days is January (23.2 days).
The month with the least sunshine days is June (13.8 days).
Average UV index in January
Merrimac, WI
- Average UV index in January: 1
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, November and December (UV index 1).
Average cloud cover in January
Merrimac, WI
- Average cloud cover in January: 66
The month with the most cloud cover is January (Cloud cover 66).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in January
Merrimac, WI
- Average visibility in January: 5mi
The months with the highest visibility are March, April, May, June, October, November and December (6mi).
The months with the lowest visibility are January, February, July, August and September (5mi).
Merrimac, Wisconsin, USA
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