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January Weather in Greater Napanee, Canada

Last updated: June 18, 2025

In January, the average temperature in Greater Napanee, Canada hovers around -6°C (22°F). Expect chilly days, with minimums plunging to -30°C (-22°F) and maximums reaching a brisk 11°C (51°F). Rainfall is likely, with 71 mm (2.8 in) spread over 9 days, and a notable average humidity of 93% adds to the winter chill.

January Temperature in Greater Napanee

In January in Greater Napanee, the average temperature is -6°C (22°F). The maximum can reach 11°C (51°F), while the minimum can be as low as -30°C (-22°F). Travelers should be prepared for a wide range of temperatures and pack accordingly for their visit.

January Weather in Greater Napanee: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in Greater Napanee, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Greater Napanee, January typically has an average temperature of -6°C (22°F), with highs reaching up to 11°C (51°F) and lows dropping to around -30°C (-22°F).
JanFebMarAprMayJunJulAugSepOctNovDec222432435666727063513728
Data source: Temperature data for Greater Napanee 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 Greater Napanee

In Greater Napanee in January, the precipitation amount is 71 mm (2.8 in) spread over 9 days.

January Precipitation Trends in Greater Napanee

The chart displays monthly precipitation patterns in Greater Napanee, 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 Greater Napanee, January typically receives around 71 mm (2.8 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec71737012096909590721379485
Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.
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January Humidity in Greater Napanee

In Greater Napanee in January humidity is 93%. With an average temperature of -6°C (22°F), this humidity feels like a biting chill that seeps into your bones, making travel uncomfortable as the damp air clings to your clothing and slows your movements.

January Average Humidity in Greater Napanee

This chart illustrates the average monthly humidity levels in Greater Napanee, 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 Greater Napanee is approximately 93%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec93%93%86%82%75%68%69%67%72%83%88%89%
Data source: Humidity data for January generated using information from the Copernicus Climate Change Service.

January UV Index in Greater Napanee

In Greater Napanee in January, the maximum UV index is 2, which corresponds to a low exposure category. With this level of UV radiation, the time to burn is approximately 45 minutes. To learn more about the hourly UV index in Greater Napanee, you can visit Hourly UV Index in Greater Napanee.

Maximum UV Index Levels in Greater Napanee for January

The chart shows the monthly maximum UV Index (UVI) for Greater Napanee 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 Greater Napanee typically reaches 2, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec245899997532
Data source: Greater Napanee 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 Greater Napanee Compares to Other Months

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

This table compares monthly weather conditions in Greater Napanee, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-6°C (22°F)71 mm (2.8 inches)93%low
February Weather-4°C (24°F)73 mm (2.9 inches)93%moderate
March Weather0°C (32°F)70 mm (2.8 inches)86%moderate
April Weather6°C (44°F)120 mm (4.7 inches)82%very high
May Weather14°C (57°F)95 mm (3.8 inches)75%very high
June Weather19°C (66°F)90 mm (3.5 inches)68%very high
July Weather22°C (73°F)95 mm (3.7 inches)69%very high
August Weather21°C (71°F)90 mm (3.6 inches)67%very high
September Weather17°C (63°F)72 mm (2.8 inches)72%high
October Weather11°C (52°F)137 mm (5.4 inches)83%moderate
November Weather3°C (38°F)94 mm (3.7 inches)88%moderate
December Weather-2°C (28°F)85 mm (3.4 inches)89%low

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