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January Weather in East Windsor, United States

Last updated: June 24, 2025

In East Windsor, United States, the average temperature in January hovers around -1°C (30°F), with extremes ranging from a chilly -24°C (-10°F) to a pleasant 19°C (67°F). Expect about 69 mm (2.7 in) of precipitation over 8 days, contributing to an average humidity of 84%, making this month a mix of cold and wet weather.

January Temperature in East Windsor

In January in East Windsor, the average temperature is -1°C (30°F), with a maximum that can reach 19°C (67°F) and a minimum that can drop as low as -24°C (-10°F). Travelers should be prepared for a wide range of temperatures, from chilly to surprisingly warm, making it essential to pack layers and stay versatile in their clothing choices.

January Weather in East Windsor: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in East Windsor, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In East Windsor, January typically has an average temperature of -1°C (30°F), with highs reaching up to 19°C (67°F) and lows dropping to around -24°C (-10°F).
JanFebMarAprMayJunJulAugSepOctNovDec303238485969747366554233
Data source: Temperature data for East Windsor 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 East Windsor

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

January Precipitation Trends in East Windsor

The chart displays monthly precipitation patterns in East Windsor, 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 East Windsor, January typically receives around 69 mm (2.7 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec698885128110801418610113892121
Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.
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January Humidity in East Windsor

In East Windsor in January, humidity is 84%. With an average temperature of -1°C (30°F), this humidity feels like a sharp chill that seeps into your bones, making travel uncomfortable as the wetness in the air intensifies the cold, leaving you yearning for warmth and shelter.

January Average Humidity in East Windsor

This chart illustrates the average monthly humidity levels in East Windsor, 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 East Windsor is approximately 84%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec84%82%81%78%70%69%62%65%68%74%82%80%
Data source: Humidity data for January generated using information from the Copernicus Climate Change Service.

January UV Index in East Windsor

In East Windsor 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 East Windsor, you can check the information here.

Maximum UV Index Levels in East Windsor for January

The chart shows the monthly maximum UV Index (UVI) for East Windsor 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 East Windsor typically reaches 3, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3568910998642
Data source: East Windsor 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 East Windsor Compares to Other Months

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

This table compares monthly weather conditions in East Windsor, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-1°C (30°F)69 mm (2.7 inches)84%moderate
February Weather0°C (32°F)88 mm (3.5 inches)82%moderate
March Weather3°C (38°F)85 mm (3.4 inches)81%high
April Weather9°C (49°F)128 mm (5.0 inches)78%very high
May Weather15°C (59°F)110 mm (4.3 inches)69%very high
June Weather20°C (69°F)79 mm (3.1 inches)69%very high
July Weather23°C (74°F)141 mm (5.6 inches)62%very high
August Weather23°C (73°F)86 mm (3.4 inches)65%very high
September Weather19°C (66°F)101 mm (4.0 inches)68%very high
October Weather13°C (56°F)138 mm (5.4 inches)74%high
November Weather5°C (42°F)92 mm (3.6 inches)82%moderate
December Weather1°C (34°F)121 mm (4.8 inches)80%low

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