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 East Rochester, the month of January registers the lowest temperatures, averaging 29.7°F (-1.3°C) at the peak and 19.6°F (-6.9°C) at the lowest.Humidity
January and February, with an average relative humidity of 84%, are the most humid months.Rainfall
The month with the least rainfall is January, when the rain falls for 9.7 days and typically collects 1.26" (32mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In East Rochester, in January, during 17.6 snowfall days, 3.66" (93mm) of snow is typically accumulated. Throughout the year, there are 70.8 snowfall days, and 20.16" (512mm) of snow is accumulated.Daylight
In January, the average length of the day in East Rochester is 9h and 26min.On the first day of the month, sunrise is at 7:41 am and sunset at 4:45 pm. On the last day of January, sunrise is at 7:26 am and sunset at 5:20 pm EST.
Sunshine
The month with the least sunshine is January, with an average of 2.6h of sunshine.UV index
January 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 health risk from unprotected exposure to Sun's UV rays for the average person.Note: In January, a daily maximum UV index of 1 leads to the following instructions:
Most individuals face no major issues with lengthy exposure to the sun, but children, infants, and individuals with fair skin always require protection. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. Employ a hat with a wide brim for robust protection, cutting UV exposure by half. Be prepared! The intensity of the Sun's UV radiation can be amplified nearly double due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What part of the year is the coldest?
How cold is it in January?
What are the most humid months in East Rochester?
What is the average humidity in January?
What is the driest month?
How many days does it rain in January?
How much does it snow in January?
What is the average length of the day in January?
What time are sunrise and sunset in January?
What is the month with the least sunshine?
How many hours of sunshine does East Rochester have in January?
When is the lowest UV index?
How high is the UV index in January?
Average temperature in January
East Rochester, NY
- Average high temperature in January: 29.7°F
The warmest month (with the highest average high temperature) is July (78.4°F).
The month with the lowest average high temperature is January (29.7°F).
- Average low temperature in January: 19.6°F
The month with the highest average low temperature is July (62.6°F).
The coldest month (with the lowest average low temperature) is January (19.6°F).
Average pressure in January
East Rochester, NY
- Average pressure in January: 30.05"Hg
The month with the highest atmospheric pressure is November (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in January
East Rochester, NY
- Average wind speed in January: 11.4mph
The windiest months (with the highest average wind speed) are January and February (11.4mph).
The calmest month (with the lowest average wind speed) is July (6.8mph).
Average humidity in January
East Rochester, NY
- Average humidity in January: 84%
The months with the highest relative humidity are January and February (84%).
The month with the lowest relative humidity is September (76%).
Average rainfall in January
East Rochester, NY
- Average rainfall in January: 1.26"
The wettest month (with the highest rainfall) is May (2.72").
The driest month (with the least rainfall) is January (1.26").
Average rainfall days in January
East Rochester, NY
- Average rainfall days in January: 9.7 days
The month with the highest number of rainy days is July (17.6 days).
The month with the least rainy days is February (6.8 days).
Average snowfall in January
East Rochester, NY
- Average snowfall in January: 3.66"
The month with the highest snowfall is February (5.28").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in January
East Rochester, NY
- Average snowfall days in January: 17.6 days
The month with the highest number of snowfall days is January (17.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
East Rochester, NY
- Average daylight in January: 9h and 2min
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 4min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 2h and 36min).
Average sunshine days in January
East Rochester, NY
- Average sunshine days in January: 7.3 days
The months with the most sunshine days are May and September (12.8 days).
The month with the least sunshine days is February (6.3 days).
Average UV index in January
East Rochester, NY
- Average UV index in January: 1
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in January
East Rochester, NY
- Average cloud cover in January: 74
The month with the most cloud cover is January (Cloud cover 74).
The months with the least cloud cover are July and August (Cloud cover 29).
Average visibility in January
East Rochester, NY
- 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).
East Rochester, New York, USA
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