Gronau Historic Weather Records

Analyse hottest, coldest, windiest & wettest days

Gronau Weather Trend Graph


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

Yearly Summary 2026


38°C
Highest Temp
14 Aug. 26

-6°C
Lowest Temp
6 Jan. 26


Seasonal Breakdown

Hottest MonthAugust29.34°C

Coldest MonthJanuary-0.12°C

Wettest MonthMay3.1mm

Windiest MonthFebruary24.83km/h

Frequently Asked Questions


1. What is the hottest month in Gronau historically?

August is historically Gronau's hottest month, with average maximum temperatures around 23°C. During peak heatwave events, the highest recorded temperatures have reached 38°C on 2026-08-14.

2. What is the coldest month in Gronau historically?

January is Gronau's coldest month, with average minimum temperatures around 1°C. The all-time record low of -13°C was recorded on 2021-02-12.

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

Gronau's average annual rainfall is approximately 827.07mm, based on records spanning 17 years.

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

Gronau historically records approximately 221.1 rainy days per year. July has the highest number of rain days at an average of 21.8 days.

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

The all-time highest temperature recorded in Gronau is 38°C on 2026-08-14.

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

The all-time lowest temperature recorded in Gronau is -13°C on 2021-02-12.

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

Gronau experiences its strongest winds during December. The historic gust record of 55 kph was recorded on 2020-02-09.

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

Usually, Gronau's humidity peaks in December at around 87.2% and drops to its lowest in April at approximately 73.2%.