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
January is Heverlee's coldest month, registering average high temperatures of 4.9°C (40.8°F) and lows of 1°C (33.8°F).Humidity
The average relative humidity in January in Heverlee is 86%.Rainfall
In Heverlee, in January, it is raining for 17 days, with typically 42mm (1.65") of accumulated precipitation. In Heverlee, during the entire year, the rain falls for 162 days and collects up to 393mm (15.47") of precipitation.Snowfall
Months with snowfall are January through March, November and December. In Heverlee, in January, snow falls for 4.4 days, with typically accumulated 34mm (1.34") of snow. In Heverlee, during the entire year, snow falls for 14.4 days and aggregates up to 108mm (4.25") of snow.Daylight
In Heverlee, the average length of the day in January is 8h and 32min.On the first day of January in Heverlee, Belgium, sunrise is at 08:43 and sunset at 16:45. On the last day of the month, sunrise is at 08:19 and sunset at 17:29 CET.
Sunshine
The average sunshine in January is 3.9h.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Heverlee, Belgium. A UV Index reading of 2, and below, represents a low health risk from unprotected exposure to Sun's UV rays for the average person.Note: The maximum daily UV index of 2 in January converts into the following recommendations:
Most individuals face no significant issues with extended sun exposure, but it is always essential to protect children, babies, and those with sensitive skin. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades. Consider this! The reflection from snow can almost double the intensity of the Sun's UV radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the coldest months in Heverlee?
Is January cold in Heverlee?
What is the average humidity in January in Heverlee?
How many days does it rain in January in Heverlee?
How many days does it snow in January in Heverlee?
What is the average length of the day in January in Heverlee?
When are sunrise and sunset in January in Heverlee?
How many hours of sunshine does Heverlee have in January?
What is the month with the lowest UV index in Heverlee?
What is the UV index intensity in January in Heverlee?
Average temperature in January
Heverlee, Belgium
- Average high temperature in January: 4.9°C
The warmest month (with the highest average high temperature) is July (23.2°C).
The month with the lowest average high temperature is January (4.9°C).
- Average low temperature in January: 1°C
The month with the highest average low temperature is August (14°C).
The coldest month (with the lowest average low temperature) is January (1°C).
Average pressure in January
Heverlee, Belgium
- Average pressure in January: 1016.2mbar
The month with the highest atmospheric pressure is September (1017.5mbar).
The month with the lowest atmospheric pressure is November (1012.5mbar).
Average wind speed in January
Heverlee, Belgium
- Average wind speed in January: 17.2km/h
The windiest month (with the highest average wind speed) is December (18.1km/h).
The calmest month (with the lowest average wind speed) is August (11.7km/h).
Average humidity in January
Heverlee, Belgium
- Average humidity in January: 86%
The month with the highest relative humidity is December (88%).
The month with the lowest relative humidity is August (74%).
Average rainfall in January
Heverlee, Belgium
- Average rainfall in January: 42mm
The wettest month (with the highest rainfall) is December (57mm).
The driest month (with the least rainfall) is September (16mm).
Average rainfall days in January
Heverlee, Belgium
- Average rainfall days in January: 17 days
The month with the highest number of rainy days is December (18.5 days).
The month with the least rainy days is September (8.5 days).
Average snowfall in January
Heverlee, Belgium
- Average snowfall in January: 34mm
The month with the highest snowfall is February (41mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in January
Heverlee, Belgium
- Average snowfall days in January: 4.4 days
The month with the highest number of snowfall days is February (5 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
Heverlee, Belgium
- 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: 3h and 5min
The month with the most sunshine is July (Average sunshine: 9h and 12min).
The month with the least sunshine is December (Average sunshine: 3h and 48min).
Average sunshine days in January
Heverlee, Belgium
- Average sunshine days in January: 8.8 days
The month with the most sunshine days is September (20.1 days).
The month with the least sunshine days is February (8.7 days).
Average UV index in January
Heverlee, Belgium
- 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
Heverlee, Belgium
- Average cloud cover in January: 61
The month with the most cloud cover is December (Cloud cover 62).
The months with the least cloud cover are April and August (Cloud cover 41).
Average visibility in January
Heverlee, Belgium
- 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).
