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January Weather in Andover, United States

Last updated: June 24, 2025

In January, the average temperature in Andover, United States hovers around -9°C (16°F), with a chilly minimum of -28°C (-18°F) and a milder maximum touching 9°C (49°F). Expect about 81 mm (3.2 in) of precipitation over 10 days, coupled with a high average humidity of 91%—perfect for those who enjoy a frosty atmosphere!

January Temperature in Andover

In January in Andover, the average temperature is -9°C (16°F), with a maximum that can reach 9°C (49°F) and a minimum that can plunge to -28°C (-18°F). Travelers should be prepared for extreme cold and significant temperature fluctuations during this time.

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

The chart illustrates January temperature patterns in Andover, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Andover, January typically has an average temperature of -9°C (16°F), with highs reaching up to 9°C (49°F) and lows dropping to around -28°C (-18°F).
JanFebMarAprMayJunJulAugSepOctNovDec161926375060666558463221
Data source: Temperature data for Andover 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 Andover

In Andover in January, the precipitation amount is 81 mm (3.2 in) over a span of 10 days.

January Precipitation Trends in Andover

The chart displays monthly precipitation patterns in Andover, 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 Andover, January typically receives around 81 mm (3.2 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec81837111384881159463119101101
Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.
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January Humidity in Andover

In Andover in January humidity is 91%. With an average temperature of -9°C (16°F), this humidity feels like a heavy veil wrapping around you, making outdoor exploration quite challenging as you navigate through the chilly air that seems to cling to your skin.

January Average Humidity in Andover

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

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

Maximum UV Index Levels in Andover for January

The chart shows the monthly maximum UV Index (UVI) for Andover 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 Andover typically reaches 2, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec2468910997532
Data source: Andover 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 Andover Compares to Other Months

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

This table compares monthly weather conditions in Andover, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-9°C (16°F)81 mm (3.2 inches)91%low
February Weather-7°C (19°F)83 mm (3.3 inches)89%moderate
March Weather-4°C (26°F)71 mm (2.8 inches)85%high
April Weather3°C (38°F)113 mm (4.5 inches)84%very high
May Weather10°C (50°F)84 mm (3.3 inches)78%very high
June Weather16°C (61°F)88 mm (3.5 inches)72%very high
July Weather19°C (67°F)115 mm (4.5 inches)75%very high
August Weather18°C (65°F)94 mm (3.7 inches)74%very high
September Weather14°C (58°F)63 mm (2.5 inches)77%high
October Weather8°C (47°F)119 mm (4.7 inches)85%moderate
November Weather0°C (32°F)101 mm (4.0 inches)86%moderate
December Weather-6°C (21°F)101 mm (4.0 inches)85%low

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