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January Weather in Northampton, United States

Last updated: June 24, 2025

In January, the average temperature in Northampton, United States hovers around 2°C (36°F), with a notable range from a chilly -14°C (7°F) to a mild 15°C (60°F). Expect 79 mm (3.1 in) of precipitation across 8 days, contributing to a high average humidity of 84%. Prepare accordingly for a weather experience that balances cold and damp!

January Temperature in Northampton

In January in Northampton, the average temperature is 2°C (36°F), with maximums reaching 15°C (60°F) and minimums dropping to as low as -14°C (7°F). This variability in temperature makes it essential for travelers to pack accordingly, ensuring they are prepared for both mild and frigid conditions.

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

The chart illustrates January temperature patterns in Northampton, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Northampton, January typically has an average temperature of 2°C (36°F), with highs reaching up to 15°C (60°F) and lows dropping to around -14°C (7°F).
JanFebMarAprMayJunJulAugSepOctNovDec353640485768757569614941
Data source: Temperature data for Northampton 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 Northampton

In Northampton in January, the precipitation amount is 79 mm (3.1 in) during 8 days, indicating a relatively wet period for the area.

January Precipitation Trends in Northampton

The chart displays monthly precipitation patterns in Northampton, 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 Northampton, January typically receives around 79 mm (3.1 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec79106101126114761179689139100137
Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.
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January Humidity in Northampton

In Northampton in January, humidity is 84%. With an average temperature of 2°C (36°F), this humidity feels like a cold, damp blanket wrapping around you, making outdoor activities less inviting and requiring extra layers to stay comfortable while traveling.

January Average Humidity in Northampton

This chart illustrates the average monthly humidity levels in Northampton, 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 Northampton 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 Northampton

In Northampton 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 Northampton, you can check the information here.

Maximum UV Index Levels in Northampton for January

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

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

This table compares monthly weather conditions in Northampton, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather2°C (36°F)79 mm (3.1 inches)84%moderate
February Weather2°C (37°F)106 mm (4.2 inches)82%moderate
March Weather4°C (40°F)101 mm (4.0 inches)81%high
April Weather9°C (49°F)126 mm (5.0 inches)78%very high
May Weather14°C (58°F)114 mm (4.5 inches)69%very high
June Weather20°C (68°F)76 mm (3.0 inches)69%very high
July Weather24°C (75°F)117 mm (4.6 inches)62%very high
August Weather24°C (75°F)96 mm (3.8 inches)65%very high
September Weather21°C (70°F)89 mm (3.5 inches)68%very high
October Weather16°C (61°F)139 mm (5.5 inches)74%high
November Weather9°C (49°F)100 mm (3.9 inches)82%moderate
December Weather5°C (41°F)137 mm (5.4 inches)80%low

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