January Weather in Shannon, United States

Last updated: June 24, 2025

In January, the average temperature in Shannon, United States settles at a brisk 7°C (45°F). Cautious travelers should note that temperatures can dip as low as -13°C (8°F), while a warm day might reach up to 25°C (78°F). Precipitation is not uncommon, with 124 mm (4.9 in) expected over about 8 days. Additionally, expect a high average humidity of 85%, adding to the unique climate of the area.

January Temperature in Shannon

In January in Shannon, the average temperature is 7°C (45°F). Maximum temperatures can reach 25°C (78°F), while the minimum can dip as low as -13°C (8°F). Be prepared for a wide range of temperatures if you're planning to travel during this time.

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 (78°F) and lows dropping to around -13°C (8°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 124 mm (4.9 in) over a span of 8 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 124 mm (4.9 inches) of precipitation spread over approximately 8 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 85%. With an average temperature of 7°C (45°F), this humidity feels like a damp chill that clings to your skin, making outdoor activities less enjoyable and requiring extra layers to stay comfortable while traveling.

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 85%, 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)	124 mm (4.9 inches)	85%	moderate
February Weather	10°C (50°F)	190 mm (7.5 inches)	84%	high
March Weather	14°C (58°F)	161 mm (6.3 inches)	82%	very high
April Weather	17°C (63°F)	159 mm (6.3 inches)	82%	very high
May Weather	22°C (73°F)	122 mm (4.8 inches)	82%	extreme
June Weather	26°C (79°F)	134 mm (5.3 inches)	79%	extreme
July Weather	27°C (82°F)	104 mm (4.1 inches)	82%	extreme
August Weather	27°C (81°F)	126 mm (5.0 inches)	77%	very high
September Weather	25°C (77°F)	90 mm (3.5 inches)	74%	very high
October Weather	19°C (66°F)	111 mm (4.4 inches)	73%	high
November Weather	11°C (52°F)	73 mm (2.9 inches)	85%	high
December Weather	9°C (49°F)	142 mm (5.6 inches)	88%	moderate