Contents
- Weather in January
- Frequently asked questions
- Average temperature in January
- Average pressure in January
- Average wind speed in January
- Average humidity in January
- Average rainfall in January
- Average rainfall days in January
- Average snowfall in January
- Average snowfall days in January
- Average daylight in January
- Average sunshine in January
- Average sunshine days in January
- Average UV index in January
- Average cloud cover in January
- Average visibility in January
Weather in January
Temperature
January, recording an average high temperature of 4.3°C (39.7°F) and a low temperature of 0.3°C (32.5°F), is Aachen's coldest month.Humidity
January and December, with an average relative humidity of 87%, are the most humid months.Rainfall
In Aachen, during January, the rain falls for 13 days and regularly aggregates up to 39mm (1.54") of precipitation. In Aachen, Germany, during the entire year, the rain falls for 185.5 days and collects up to 509mm (20.04") of precipitation.Snowfall
January through March, November and December are months with snowfall in Aachen. In Aachen, Germany, during January, snow falls for 6.1 days and regularly aggregates up to 47mm (1.85") of snow. Throughout the year, in Aachen, Germany, there are 20.4 snowfall days, and 156mm (6.14") of snow is accumulated.Daylight
In January, the average length of the day in Aachen is 8h and 33min.On the first day of January, sunrise is at 08:37 and sunset at 16:40. On the last day of the month, sunrise is at 08:13 and sunset at 17:24 CET.
Sunshine
The average sunshine in January is 4h.UV index
The months with the lowest UV index in Aachen, Germany, are January, February, November and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a low threat to health from exposure to the Sun's UV radiation for ordinary individuals.Note: A typical high UV index of 2 in January suggests the following recommendations:
Apart from children, who require continuous protection, most can endure sun exposure for up to an hour without experiencing burns. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes. Be aware! The intensity of the Sun's UV radiation can be amplified nearly twice due to snow reflection.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the coldest months in Aachen?
Is it cold in Aachen during January?
What are the most humid months in Aachen?
What is the average humidity in January in Aachen?
How many days does it rain in January in Aachen?
How much does it snow in Aachen in January?
What is the average length of the day in January in Aachen?
What time are sunrise and sunset in January in Aachen?
How long on average sun shines in January in Aachen?
What are the months with the lowest UV index in Aachen?
What is the UV index reading in January in Aachen?
Average temperature in January
Aachen, Germany
- Average high temperature in January: 4.3°C
The warmest month (with the highest average high temperature) is August (22.7°C).
The month with the lowest average high temperature is January (4.3°C).
- Average low temperature in January: 0.3°C
The month with the highest average low temperature is August (13.7°C).
The coldest month (with the lowest average low temperature) is January (0.3°C).
Average pressure in January
Aachen, Germany
- Average pressure in January: 1016.5mbar
The month with the highest atmospheric pressure is September (1017.6mbar).
The month with the lowest atmospheric pressure is November (1013.1mbar).
Average wind speed in January
Aachen, Germany
- Average wind speed in January: 16.4km/h
The windiest month (with the highest average wind speed) is December (17.3km/h).
The calmest month (with the lowest average wind speed) is August (11km/h).
Average humidity in January
Aachen, Germany
- Average humidity in January: 87%
The months with the highest relative humidity are January and December (87%).
The months with the lowest relative humidity are April and August (75%).
Average rainfall in January
Aachen, Germany
- Average rainfall in January: 39mm
The wettest month (with the highest rainfall) is June (55mm).
The driest month (with the least rainfall) is April (25mm).
Average rainfall days in January
Aachen, Germany
- Average rainfall days in January: 13 days
The month with the highest number of rainy days is July (19.4 days).
The month with the least rainy days is February (12.1 days).
Average snowfall in January
Aachen, Germany
- Average snowfall in January: 47mm
The month with the highest snowfall is February (53mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in January
Aachen, Germany
- Average snowfall days in January: 6.1 days
The month with the highest number of snowfall days is January (6.1 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in January /
Average sunshine in January
Aachen, Germany
- Average daylight in January: 8h and 3min
The month with the longest days is June (Average daylight: 16h and 24min).
The month with the shortest days is December (Average daylight: 8h and 0min).
- Average sunshine in January: 4h and 0min
The month with the most sunshine is August (Average sunshine: 9h and 24min).
The month with the least sunshine is December (Average sunshine: 3h and 54min).
Average sunshine days in January
Aachen, Germany
- Average sunshine days in January: 12.3 days
The month with the most sunshine days is October (14.5 days).
The month with the least sunshine days is June (9 days).
Average UV index in January
Aachen, Germany
- Average UV index in January: 2
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in January
Aachen, Germany
- Average cloud cover in January: 60
The month with the most cloud cover is December (Cloud cover 62).
The month with the least cloud cover is August (Cloud cover 39).
Average visibility in January
Aachen, Germany
- Average visibility in January: 8km
The months with the highest visibility are February, March, April, May, June, July, August, September, October and November (9km).
The months with the lowest visibility are January and December (8km).
Aachen, Germany
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