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January Weather in Glen Rock, United States

Last updated: June 24, 2025

In January, the average temperature in Glen Rock, United States typically hovers around 1°C (34°F). Expect chilly days, with temperatures dipping as low as -16°C (4°F) and reaching up to a milder 20°C (68°F). Rain is not uncommon, with an average precipitation of 60 mm (2.4 in) spread across 8 days. The air remains quite moist, showcasing an average humidity of 84%.

January Temperature in Glen Rock

In January in Glen Rock, the average temperature is 1°C (34°F), with maximums reaching 20°C (68°F) and minimums dropping as low as -16°C (4°F). Travelers should be prepared for a wide range of temperatures and varying weather conditions during their visit.

January Weather in Glen Rock: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in Glen Rock, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Glen Rock, January typically has an average temperature of 1°C (34°F), with highs reaching up to 20°C (68°F) and lows dropping to around -16°C (4°F).
JanFebMarAprMayJunJulAugSepOctNovDec343843546472787569594538
Data source: Temperature data for Glen Rock 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 Glen Rock

In Glen Rock in January, the total precipitation amount is 60 mm (2.4 in) spread over the course of 8 days.

January Precipitation Trends in Glen Rock

The chart displays monthly precipitation patterns in Glen Rock, 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 Glen Rock, January typically receives around 60 mm (2.4 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec6097961011391151461491231039093
Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.
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January Humidity in Glen Rock

In Glen Rock in January humidity is 84%. With an average temperature of 1°C (34°F), this humidity feels like a biting chill that seeps into your bones, making travel uncomfortable and requiring extra layers to keep warm while navigating the damp air.

January Average Humidity in Glen Rock

This chart illustrates the average monthly humidity levels in Glen Rock, 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 Glen Rock is approximately 84%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec84%83%83%81%78%79%74%72%75%81%85%84%
Data source: Humidity data for January generated using information from the Copernicus Climate Change Service.

January UV Index in Glen Rock

In Glen Rock 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 Glen Rock, you can check the information here.

Maximum UV Index Levels in Glen Rock for January

The chart shows the monthly maximum UV Index (UVI) for Glen Rock 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 Glen Rock typically reaches 3, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec357910101098743
Data source: Glen Rock 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 Glen Rock Compares to Other Months

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

This table compares monthly weather conditions in Glen Rock, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather1°C (34°F)60 mm (2.4 inches)84%moderate
February Weather3°C (38°F)97 mm (3.8 inches)83%moderate
March Weather6°C (44°F)96 mm (3.8 inches)83%high
April Weather12°C (54°F)100 mm (4.0 inches)81%very high
May Weather18°C (64°F)139 mm (5.5 inches)78%very high
June Weather22°C (73°F)115 mm (4.5 inches)79%very high
July Weather25°C (78°F)145 mm (5.7 inches)74%very high
August Weather24°C (75°F)148 mm (5.8 inches)72%very high
September Weather21°C (69°F)123 mm (4.9 inches)75%very high
October Weather15°C (60°F)103 mm (4.1 inches)81%high
November Weather7°C (45°F)90 mm (3.6 inches)85%moderate
December Weather3°C (38°F)93 mm (3.6 inches)84%moderate

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