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January Weather in Winthrop, United States

Last updated: June 24, 2025

In January, the average temperature in Winthrop, United States hovers around -5°C (23°F), with extreme lows reaching -27°C (-16°F) and highs climbing to a mild 13°C (56°F). Expect 82 mm (3.2 in) of precipitation over approximately 8 days, all while experiencing a high humidity level of around 91%. Prepare for the chill!

January Temperature in Winthrop

In January in Winthrop, the average temperature is -5°C (23°F), with maximums reaching 13°C (56°F) and minimums dropping as low as -27°C (-16°F). Travelers should be prepared for a wide range of temperatures and dress in layers to stay comfortable during their visit.

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

The chart illustrates January temperature patterns in Winthrop, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Winthrop, January typically has an average temperature of -5°C (23°F), with highs reaching up to 13°C (56°F) and lows dropping to around -27°C (-16°F).
JanFebMarAprMayJunJulAugSepOctNovDec232531435565707062513727
Data source: Temperature data for Winthrop 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 Winthrop

In Winthrop in January, the total precipitation amount reached 82 mm (3.2 in) over the course of 8 days.

January Precipitation Trends in Winthrop

The chart displays monthly precipitation patterns in Winthrop, 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 Winthrop, January typically receives around 82 mm (3.2 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec82847211879671178573128107114
Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.
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January Humidity in Winthrop

In Winthrop in January, humidity is 91%. With an average temperature of -5°C (23°F), this humidity feels like a biting chill that seeps into your bones, making travel uncomfortable and pushing you to seek warmth at every opportunity.

January Average Humidity in Winthrop

This chart illustrates the average monthly humidity levels in Winthrop, 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 Winthrop is approximately 91%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec91%89%85%84%78%72%75%74%77%85%86%85%
Data source: Humidity data for January generated using information from the Copernicus Climate Change Service.

January UV Index in Winthrop

In Winthrop 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 Winthrop, you can visit Hourly UV Index in Winthrop.

Maximum UV Index Levels in Winthrop for January

The chart shows the monthly maximum UV Index (UVI) for Winthrop 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 Winthrop typically reaches 2, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec2458910987532
Data source: Winthrop 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 Winthrop Compares to Other Months

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

This table compares monthly weather conditions in Winthrop, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-5°C (23°F)82 mm (3.2 inches)91%low
February Weather-4°C (25°F)84 mm (3.3 inches)89%moderate
March Weather0°C (32°F)72 mm (2.8 inches)85%moderate
April Weather6°C (44°F)118 mm (4.6 inches)84%very high
May Weather13°C (55°F)79 mm (3.1 inches)78%very high
June Weather18°C (65°F)67 mm (2.6 inches)72%very high
July Weather21°C (71°F)117 mm (4.6 inches)75%very high
August Weather21°C (70°F)85 mm (3.3 inches)74%very high
September Weather17°C (63°F)73 mm (2.9 inches)77%high
October Weather11°C (52°F)128 mm (5.1 inches)85%moderate
November Weather3°C (38°F)107 mm (4.2 inches)86%moderate
December Weather-3°C (27°F)114 mm (4.5 inches)85%low

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