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January Weather in Rochester, United States

Last updated: June 24, 2025

In January, the average temperature in Rochester, United States hovers around -2°C (29°F). Expect a chilly range, with minimums plummeting to -26°C (-15°F) and maximums climbing to 17°C (63°F). During this month, anticipate 69 mm (2.7 in) of precipitation over approximately 8 days, contributing to a relatively high average humidity of 84%. Stay warm and prepared for those frosty days!

January Temperature in Rochester

In January in Rochester, the average temperature is -2°C (29°F), with a maximum reaching 17°C (63°F) and a minimum dropping as low as -26°C (-15°F). Be prepared for a wide range of temperatures and pack accordingly when traveling to Rochester.

January Weather in Rochester: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in Rochester, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Rochester, January typically has an average temperature of -2°C (29°F), with highs reaching up to 17°C (63°F) and lows dropping to around -26°C (-15°F).
JanFebMarAprMayJunJulAugSepOctNovDec293244536575777471574236
Data source: Temperature data for Rochester generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

January Precipitation in Rochester

In Rochester in January, the precipitation amount is 69 mm (2.7 in) that falls over a period of 8 days.

January Precipitation Trends in Rochester

The chart displays monthly precipitation patterns in Rochester, with values for each month alongside January’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how January’s conditions compare to those of other months. In Rochester, January typically receives around 69 mm (2.7 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec697113313014411911288591047051
Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.
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January Humidity in Rochester

In Rochester in January, humidity is 84%. With an average temperature of -2°C (29°F), this humidity feels like an icy blanket that clings to your skin, making it difficult to stay warm and comfortable while traveling.

January Average Humidity in Rochester

This chart illustrates the average monthly humidity levels in Rochester, with January’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In January, average humidity in Rochester is approximately 84%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec84%82%84%83%80%83%82%83%79%79%88%87%
Data source: Humidity data for January generated using information from the Copernicus Climate Change Service.

January UV Index in Rochester

In Rochester in January, the maximum UV index is 3, which corresponds to a moderate Exposure Category. The time to burn is approximately 30 minutes. For more details on the hourly UV index in Rochester, you can check the information here.

Maximum UV Index Levels in Rochester for January

The chart shows the monthly maximum UV Index (UVI) for Rochester in January, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In January, the maximum UV index in Rochester typically reaches 3, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec357910111198643
Data source: Rochester January UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

How January Weather in Rochester Compares to Other Months

Weather in Rochester varies notably across the year, with each month offering distinct climate conditions. This page compares January’s weather to other months in Rochester, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Rochester, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-2°C (29°F)69 mm (2.7 inches)84%moderate
February Weather0°C (32°F)71 mm (2.8 inches)82%moderate
March Weather6°C (44°F)133 mm (5.2 inches)84%high
April Weather11°C (53°F)130 mm (5.1 inches)83%very high
May Weather19°C (66°F)144 mm (5.7 inches)80%very high
June Weather24°C (75°F)119 mm (4.7 inches)83%extreme
July Weather25°C (78°F)112 mm (4.4 inches)82%extreme
August Weather23°C (75°F)88 mm (3.5 inches)82%very high
September Weather22°C (71°F)59 mm (2.3 inches)79%very high
October Weather14°C (58°F)104 mm (4.1 inches)79%high
November Weather5°C (42°F)70 mm (2.8 inches)88%moderate
December Weather2°C (36°F)51 mm (2.0 inches)87%moderate

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