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
In Rochester, the month of January is known for its lowest average temperatures, reaching a high of 28°F (-2.2°C) and a low of 17.8°F (-7.9°C).Humidity
The months with the highest humidity in Rochester are January and February, with an average relative humidity of 86%.Rainfall
In January, the rain falls for 6.4 days. Throughout January, 1.1" (28mm) of precipitation is accumulated. In Rochester, during the entire year, the rain falls for 146.2 days and collects up to 18.5" (470mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In Rochester, Michigan, in January, during 15.7 snowfall days, 3.15" (80mm) of snow is typically accumulated. In Rochester, during the entire year, snow falls for 62.5 days and aggregates up to 14.09" (358mm) of snow.Daylight
In January, the average length of the day is 9h and 28min.On the first day of January, sunrise is at 8:02 am and sunset at 5:09 pm. On the last day of the month, sunrise is at 7:47 am and sunset at 5:43 pm EST.
Sunshine
The month with the least sunshine is January, with an average of 3.1h of sunshine.UV index
The average daily maximum UV index in January is 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV rays for the average person.Note: In January, the maximum UV index of 2 transforms into these recommendations:
Sun exposure does not present considerable issues for many, yet infants, fair-skinned people, and children necessitate constant protection. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Be alert to the fact! The reflection from snow can nearly double the UV radiation of the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the coldest time of year?
How cold is it in January?
What are the most humid months?
What is the average humidity in January?
How much does it rain in January?
How much does it snow in January?
What is the average length of the day in January in Rochester?
When is the sunrise / sunset in January in Rochester?
What is the month with the least sunshine?
How many hours of sunshine does Rochester have in January?
What is the UV index intensity in January?
Average temperature in January
Rochester, MI
- Average high temperature in January: 28°F
The warmest month (with the highest average high temperature) is July (80.2°F).
The month with the lowest average high temperature is January (28°F).
- Average low temperature in January: 17.8°F
The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (17.8°F).
Average pressure in January
Rochester, MI
- Average pressure in January: 30.07"Hg
The months with the highest atmospheric pressure are March and November (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in January
Rochester, MI
- Average wind speed in January: 10.1mph
The windiest month (with the highest average wind speed) is January (10.1mph).
The calmest month (with the lowest average wind speed) is July (6.5mph).
Average humidity in January
Rochester, MI
- Average humidity in January: 86%
The months with the highest relative humidity are January and February (86%).
The months with the lowest relative humidity are April, May, July and August (75%).
Average rainfall in January
Rochester, MI
- Average rainfall in January: 1.1"
The wettest month (with the highest rainfall) is May (2.28").
The driest months (with the least rainfall) are February and December (1.02").
Average rainfall days in January
Rochester, MI
- Average rainfall days in January: 6.4 days
The month with the highest number of rainy days is May (16.8 days).
The month with the least rainy days is January (6.4 days).
Average snowfall in January
Rochester, MI
- Average snowfall in January: 3.15"
The month with the highest snowfall is February (4.02").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in January
Rochester, MI
- Average snowfall days in January: 15.7 days
The month with the highest number of snowfall days is January (15.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Rochester, 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: 3h and 1min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 3h and 6min).
Average sunshine days in January
Rochester, MI
- Average sunshine days in January: 11 days
The month with the most sunshine days is November (14.9 days).
The month with the least sunshine days is February (9.8 days).
Average UV index in January
Rochester, MI
- Average UV index in January: 2
The months with the highest UV index are July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in January
Rochester, MI
- Average cloud cover in January: 67
The month with the most cloud cover is January (Cloud cover 67).
The month with the least cloud cover is July (Cloud cover 29).
Average visibility in January
Rochester, 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).
Rochester, Michigan, USA
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