In this post, I take a look at the collected data from my weather station. I have cleaned the CSV exports and transferred them into a SQLite database to create comparative statistics and charts.

It is amazing what you can see when you look at the data over several years (2022 to present). We are again a bit nerdy on the terminal, using Python and Matplotlib for the visualization.

Here are the comparative evaluations of daily maximum and minimum temperatures for each month. The colors represent the different years:

• 2022: Purple (Data from November)
• 2023: Green
• 2024: Cyan
• 2025: Pink
• 2026: Yellow/Orange (Data until April)

Start of heading level 2: ## Yearly Overviews (Smoothed) End of heading.

To provide a better overview of the trends, this summary shows the progression over the entire year. The data has been smoothed by dividing each month into 5 segments (approx. 6-day intervals). This removes the daily “spikes” and makes the seasonal trend visible.

My database contains some interesting extremes: The hottest day so far was July 2nd, 2025, with a solid 36.2 °C. On the other hand, January 11th, 2026, holds the cold record with a frosty -17.7 °C.

Looking at the average temperatures, it is clear that 2024, with an average of approx. 11.5 °C, was slightly warmer than 2023 (11.2 °C).

Start of heading level 2: ## Rainfall Comparison End of heading.

Besides temperature, rainfall is one of the most important parameters. December 2023 stands out, being the wettest month in my records with a total of 122.4 mm of precipitation.

The diagrams show the total monthly amount and the number of days it rained (at least 0.1 mm). It is quite visible that 2024 was generally a “wet” year compared to the others.

Start of heading level 2: ## Sunshine Comparison End of heading.

How many hours does the sun shine? For this analysis, I count every period where the light intensity at the station reached at least 20 klux as a “sunshine hour”. This is a good indicator for direct sunlight or at least a very bright sky.

The sunniest year so far was 2024 with a total of 1,421 sunshine hours. The diagram below shows the smoothed daily averages per month.

Start of heading level 2: ## Monthly Detailed Views End of heading.

For those who want to know more, you can find the raw daily values in direct comparison across the years here. You can also see the gaps in the data where the station didn’t feel like logging or the server had a hiccup.

Start of heading level 3: ### January End of heading.

Start of heading level 3: ### February End of heading.

Start of heading level 3: ### March End of heading.

Start of heading level 3: ### April End of heading.

Start of heading level 3: ### May End of heading.

Start of heading level 3: ### June End of heading.

Start of heading level 3: ### July End of heading.

Start of heading level 3: ### August End of heading.

Start of heading level 3: ### September End of heading.

Start of heading level 3: ### October End of heading.

Start of heading level 3: ### November End of heading.

Start of heading level 3: ### December End of heading.