Unna Historic Weather Records

Analyse hottest, coldest, windiest & wettest days

Unna Weather Trend Graph


Temperature (°C)
.
Months
Max Temp.
Historic Max Temp.
Min Temp.
Historic Min Temp.

Yearly Summary 2026


37°C
Highest Temp
14 Aug. 26

-6°C
Lowest Temp
6 Jan. 26


Seasonal Breakdown

Hottest MonthAugust30.27°C

Coldest MonthJanuary0.31°C

Wettest MonthMay3.45mm

Windiest MonthJuly20.41km/h

Frequently Asked Questions


1. What is the hottest month in Unna historically?

August is historically Unna's hottest month, with average maximum temperatures around 24°C. During peak heatwave events, the highest recorded temperatures have reached 39°C on 2019-07-25.

2. What is the coldest month in Unna historically?

January is Unna's coldest month, with average minimum temperatures around 1°C. The all-time record low of -17°C was recorded on 2021-02-10.

3. What is the average annual rainfall in Unna over the past 17 years?

Unna's average annual rainfall is approximately 868.3mm, based on records spanning 17 years.

4. How many rainy days does Unna experience on average per year?

Unna historically records approximately 225.3 rainy days per year. December has the highest number of rain days at an average of 21.3 days.

5. What is the all-time highest temperature ever recorded in Unna?

The all-time highest temperature recorded in Unna is 39°C on 2019-07-25.

6. What is the all-time lowest temperature ever recorded in Unna?

The all-time lowest temperature recorded in Unna is -17°C on 2021-02-10.

7. What is the windiest time of year in Unna historically?

Unna experiences its strongest winds during December. The historic gust record of 54.7 kph was recorded on 2018-01-18.

8. What is the highest and lowest humidity in Unna during a year?

Usually, Unna's humidity peaks in January at around 85.09% and drops to its lowest in August at approximately 67.2%.