January Weather in Shannon, United States

Last updated: June 24, 2025

In January, the average temperature in Shannon, United States hovers around 7°C (45°F). However, be prepared for temperature fluctuations; it can plunge to a chilling -12°C (11°F) or soar up to a warm 25°C (77°F). During this month, you can expect approximately 111 mm (4.4 in) of precipitation spread over 9 days, with an average humidity level reaching an impressive 87%.

January Temperature in Shannon

In January in Shannon, the average temperature is 7°C (45°F). Maximums can reach 25°C (77°F), and minimums can be as low as -12°C (11°F). Be sure to pack layers to prepare for a wide range of temperatures while traveling!

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

The chart illustrates January temperature patterns in Shannon, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Shannon, January typically has an average temperature of 7°C (45°F), with highs reaching up to 25°C (77°F) and lows dropping to around -12°C (11°F).

Data source: Temperature data for Shannon generated using information from the Copernicus Climate Change Service.

January Precipitation in Shannon

In Shannon in January, the precipitation amount is 111 mm (4.4 in) over the course of 9 days.

January Precipitation Trends in Shannon

The chart displays monthly precipitation patterns in Shannon, 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 Shannon, January typically receives around 111 mm (4.4 inches) of precipitation spread over approximately 9 days.

Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

January Humidity in Shannon

In Shannon in January, humidity is 87%. With an average temperature of 7°C (45°F), this humidity feels like a damp chill that seeps into your bones, making outdoor adventures somewhat uncomfortable and urging travelers to seek refuge in cozy cafes or warm indoor activities.

January Average Humidity in Shannon

This chart illustrates the average monthly humidity levels in Shannon, 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 Shannon is approximately 87%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for January generated using information from the Copernicus Climate Change Service.

January UV Index in Shannon

In Shannon in January, the maximum UV index reaches 4, which corresponds to a moderate Exposure Category. With a time to burn of 30 minutes, it’s important to take precautions to protect your skin. You can find more details in the Hourly UV Index in Shannon for better planning.

Maximum UV Index Levels in Shannon for January

The chart shows the monthly maximum UV Index (UVI) for Shannon 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 Shannon typically reaches 4, which falls under the moderate exposure category.

Data source: Shannon 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 Shannon Compares to Other Months

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

This table compares monthly weather conditions in Shannon, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	7°C (45°F)	111 mm (4.4 inches)	87%	moderate
February Weather	10°C (51°F)	167 mm (6.6 inches)	87%	high
March Weather	13°C (56°F)	142 mm (5.6 inches)	85%	very high
April Weather	17°C (62°F)	132 mm (5.2 inches)	82%	very high
May Weather	22°C (72°F)	95 mm (3.8 inches)	83%	extreme
June Weather	25°C (77°F)	119 mm (4.7 inches)	82%	extreme
July Weather	27°C (80°F)	112 mm (4.4 inches)	78%	extreme
August Weather	26°C (79°F)	136 mm (5.3 inches)	67%	extreme
September Weather	24°C (75°F)	105 mm (4.1 inches)	64%	very high
October Weather	19°C (66°F)	127 mm (5.0 inches)	74%	high
November Weather	11°C (52°F)	85 mm (3.3 inches)	87%	high
December Weather	9°C (48°F)	134 mm (5.3 inches)	88%	moderate