January weather forecast
Iserlohn, Germany

January

Weather in January

January, like December, in Iserlohn, Germany, is an icy winter month, with an average temperature fluctuating between 3.5°C (38.3°F) and -0.5°C (31.1°F).

Temperature

In Iserlohn, Germany, January records the lowest average temperatures, peaking at 3.5°C (38.3°F) and reaching a low of -0.5°C (31.1°F).

Humidity

The months with the highest humidity in Iserlohn, Germany, are January and December, with an average relative humidity of 89%.

Rainfall

In Iserlohn, during January, the rain falls for 14.7 days and regularly aggregates up to 60mm (2.36") of precipitation. In Iserlohn, during the entire year, the rain falls for 190.8 days and collects up to 597mm (23.5") of precipitation.

Snowfall

Months with snowfall in Iserlohn are January through May, October through December. January is the month with the most snowfall. Snow falls for 11.1 days and accumulates 116mm (4.57") of snow.

Daylight

In Iserlohn, the average length of the day in January is 8h and 28min.
On the first day of the month, sunrise is at 08:34 and sunset at 16:31. On the last day of January, sunrise is at 08:09 and sunset at 17:16 CET.

Sunshine

The average sunshine in January in Iserlohn is 3.6h.

UV index

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Iserlohn. A UV Index estimate of 2, and below, represents a low threat to health from exposure to the Sun's UV radiation for the ordinary person.
Note: A daily maximum UV index of 2 in January translates into the following instructions:
Children must always have sun protection, unlike most people, who can tolerate up to an hour in the sun without any burns. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized. Alert! The snow's reflection can amplify the UV radiation of the Sun nearly twice.

Frequently asked questions

What part of the year is the coldest in Iserlohn?
January stands out as Iserlohn's coldest month, with temperatures ranging between an average high of 3.5°C (38.3°F) and a low of -0.5°C (31.1°F).
How cold does it get in Iserlohn in January?
The high-temperature during January is 3.5°C (38.3°F) and the low-temperature is -0.5°C (31.1°F).
What are the most humid months in Iserlohn?
January and December, with an average relative humidity of 89%, are most humid months in Iserlohn.
What is the average humidity in January in Iserlohn?
The average relative humidity in January in Iserlohn is 89%.
How much does it rain in Iserlohn in January?
In Iserlohn, Germany, in January, during 14.7 rainfall days, 60mm (2.36") of precipitation is typically accumulated.
When does it snow the most in Iserlohn?
January is the month with the most snowfall. Snow falls for 11.1 days and accumulates 116mm (4.57") of snow.
How many days does it snow in January in Iserlohn?
In Iserlohn, Germany, in January, during 11.1 snowfall days, 116mm (4.57") of snow is typically accumulated.
How many hours of daylight does Iserlohn have in January?
In January, the average day length in Iserlohn, Germany, is 8h and 28min.
When is the sunrise / sunset in January in Iserlohn?
In January, on the first day of the month, sunrise is at 08:34 and sunset at 16:31. On the last day of the month, in Iserlohn, sunrise is at 08:09 and sunset at 17:16 CET.
How long on average sun shines in January in Iserlohn?
In Iserlohn, Germany, the average sunshine duration in January is 3.6h.
What is the month with the lowest UV index in Iserlohn?
The months with the lowest UV index in Iserlohn are January, February, November and December, with an average maximum UV index of 2.
How high is the UV index in January in Iserlohn?
In Iserlohn, Germany, the average daily maximum UV index in January is 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to UV radiation.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in January - Iserlohn, Germany
Average temperature in January
Iserlohn, Germany
  • Average high temperature in January: 3.5°C

The warmest months (with the highest average high temperature) are July and August (22.7°C).
The month with the lowest average high temperature is January (3.5°C).

  • Average low temperature in January: -0.5°C

The month with the highest average low temperature is August (13.5°C).
The coldest month (with the lowest average low temperature) is January (-0.5°C).

Average pressure in January - Iserlohn, Germany
Average pressure in January
Iserlohn, Germany
  • Average pressure in January: 1016.2mbar

The month with the highest atmospheric pressure is September (1017.6mbar).
The month with the lowest atmospheric pressure is November (1013.3mbar).

Average wind speed in January - Iserlohn, Germany
Average wind speed in January
Iserlohn, Germany
  • Average wind speed in January: 14.1km/h

The windiest month (with the highest average wind speed) is December (14.7km/h).
The calmest month (with the lowest average wind speed) is August (9.7km/h).

Average humidity in January - Iserlohn, Germany
Average humidity in January
Iserlohn, Germany
  • Average humidity in January: 89%

The months with the highest relative humidity are January and December (89%).
The month with the lowest relative humidity is August (74%).

Average rainfall in January - Iserlohn, Germany
Average rainfall in January
Iserlohn, Germany
  • Average rainfall in January: 60mm

The wettest month (with the highest rainfall) is December (76mm).
The driest months (with the least rainfall) are April and September (32mm).

Average rainfall days in January - Iserlohn, Germany
Average rainfall days in January
Iserlohn, Germany
  • Average rainfall days in January: 14.7 days

The month with the highest number of rainy days is July (18.7 days).
The month with the least rainy days is September (13.2 days).

Average snowfall in January - Iserlohn, Germany
Average snowfall in January
Iserlohn, Germany
  • Average snowfall in January: 116mm

The month with the highest snowfall is January (116mm).
The months with the least snowfall are June, July, August and September (0mm).

Average snowfall days in January - Iserlohn, Germany
Average snowfall days in January
Iserlohn, Germany
  • Average snowfall days in January: 11.1 days

The month with the highest number of snowfall days is January (11.1 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in January / Average sunshine in January - Iserlohn, Germany
Average daylight in January /
Average sunshine in January
Iserlohn, Germany
  • Average daylight in January: 8h and 3min

The month with the longest days is June (Average daylight: 16h and 30min).
The month with the shortest days is December (Average daylight: 7h and 54min).

  • Average sunshine in January: 3h and 4min

The month with the most sunshine is August (Average sunshine: 9h and 42min).
The month with the least sunshine is December (Average sunshine: 3h and 30min).

Average sunshine days in January - Iserlohn, Germany
Average sunshine days in January
Iserlohn, Germany
  • Average sunshine days in January: 8.9 days

The month with the most sunshine days is September (13.7 days).
The month with the least sunshine days is December (6.6 days).

Average UV index in January - Iserlohn, Germany
Average UV index in January
Iserlohn, Germany
  • Average UV index in January: 2

The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).

Average cloud cover in January - Iserlohn, Germany
Average cloud cover in January
Iserlohn, Germany
  • Average cloud cover in January: 64

The month with the most cloud cover is December (Cloud cover 67).
The month with the least cloud cover is August (Cloud cover 38).

Average visibility in January - Iserlohn, Germany
Average visibility in January
Iserlohn, Germany
  • Average visibility in January: 8km

The months with the highest visibility are April, May, June, July and August (9km).
The months with the lowest visibility are January, February, March, September, October, November and December (8km).

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