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
January
Weather in January
Temperature
The coldest month is January, with an average high-temperature of 3.1°C (37.6°F) and an average low-temperature of -0.7°C (30.7°F).Humidity
The months with the highest humidity in Grethem are January and December, with an average relative humidity of 88%.Rainfall
In Grethem, in January, during 11.4 rainfall days, 28mm (1.1") of precipitation is typically accumulated. Throughout the year, there are 149.4 rainfall days, and 335mm (13.19") of precipitation is accumulated.Snowfall
January through April, November and December are months with snowfall in Grethem, Germany. In January, it is snowing for 5.8 days. Throughout January, 42mm (1.65") of snow is accumulated. Throughout the year, in Grethem, there are 20.7 snowfall days, and 143mm (5.63") of snow is accumulated.Daylight
In January, the average length of the day is 8h and 16min.On the first day of January, sunrise is at 08:33 and sunset at 16:16. On the last day of the month, sunrise is at 08:06 and sunset at 17:03 CET.
Sunshine
In Grethem, Germany, the average sunshine in January is 3.5h.UV index
The months with the lowest UV index in Grethem are January, February, November and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a low threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In January, the maximum UV index of 2 translates into these guidelines:
It is important to always shield children, babies, and individuals with sensitive skin from prolonged exposure to the sun. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the coldest time of year in Grethem?
How cold does it get in Grethem in January?
What is the most humid month in Grethem?
What is the average humidity in January in Grethem?
How much does it rain in Grethem in January?
How much does it snow in Grethem in January?
What is the average length of the day in January in Grethem?
When are sunrise and sunset in January in Grethem?
How many hours of sunshine does Grethem have in January?
What are the months with the lowest UV index in Grethem?
What is the UV index intensity in January in Grethem?
Average temperature in January
Grethem, Germany
- Average high temperature in January: 3.1°C
The warmest month (with the highest average high temperature) is August (23.9°C).
The month with the lowest average high temperature is January (3.1°C).
- Average low temperature in January: -0.7°C
The month with the highest average low temperature is August (14.2°C).
The coldest month (with the lowest average low temperature) is January (-0.7°C).
Average pressure in January
Grethem, Germany
- Average pressure in January: 1015.1mbar
The month with the highest atmospheric pressure is September (1017.1mbar).
The month with the lowest atmospheric pressure is November (1012.7mbar).
Average wind speed in January
Grethem, Germany
- Average wind speed in January: 16.7km/h
The windiest month (with the highest average wind speed) is December (17.2km/h).
The calmest month (with the lowest average wind speed) is August (12.5km/h).
Average humidity in January
Grethem, Germany
- Average humidity in January: 88%
The months with the highest relative humidity are January and December (88%).
The month with the lowest relative humidity is August (70%).
Average rainfall in January
Grethem, Germany
- Average rainfall in January: 28mm
The wettest month (with the highest rainfall) is July (39mm).
The driest month (with the least rainfall) is April (16mm).
Average rainfall days in January
Grethem, Germany
- Average rainfall days in January: 11.4 days
The month with the highest number of rainy days is July (15.7 days).
The month with the least rainy days is February (10 days).
Average snowfall in January
Grethem, Germany
- Average snowfall in January: 42mm
The month with the highest snowfall is December (43mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in January
Grethem, Germany
- Average snowfall days in January: 5.8 days
The month with the highest number of snowfall days is January (5.8 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
Grethem, Germany
- Average daylight in January: 8h and 2min
The month with the longest days is June (Average daylight: 16h and 48min).
The month with the shortest days is December (Average daylight: 7h and 42min).
- Average sunshine in January: 3h and 3min
The month with the most sunshine is August (Average sunshine: 9h and 30min).
The month with the least sunshine is December (Average sunshine: 3h and 12min).
Average sunshine days in January
Grethem, Germany
- Average sunshine days in January: 14.1 days
The months with the most sunshine days are August and September (16.8 days).
The month with the least sunshine days is July (12.5 days).
Average UV index in January
Grethem, 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
Grethem, Germany
- Average cloud cover in January: 65
The month with the most cloud cover is December (Cloud cover 68).
The month with the least cloud cover is August (Cloud cover 38).
Average visibility in January
Grethem, Germany
- Average visibility in January: 8km
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (9km).
The month with the lowest visibility is January (8km).
