Stationsweb Help - Graphical Statistics
Climate Diagram Walter/Lieth
The Walter-Lieth diagram is a standardised climate diagram widely used in ecology and geography. It shows the mean temperature and total rainfall across all months with available data. Humid and arid periods are shaded for easy visual identification. Values are updated every 24 hours.
Required data: More than 1 year of data, with each month having at least 80% data availability.
Climate Diagram
This diagram shows the average temperature and total rainfall across all months with available data. The average monthly temperature and rainfall totals for the current year are shown for comparison. The value table displays the absolute and relative differences between the long-term average and the current year. Values are updated every 24 hours.
Required data: At least 1 year with all months at at least 80% data availability. For current year values, months with more than 50% data availability are also required.
Yearly Values
This diagram shows the average annual temperature and annual rainfall total. Values for the current year are displayed separately. The value table shows the average over all years as well as the absolute and relative deviations from the multi-year averages. Values are updated every 24 hours.
Required data: At least two complete previous years, each with at least 80% data availability.
Solar Radiation
This diagram shows the solar energy per year and the average solar energy per month. Values for the current year are also displayed. Using the input field, the energy values can be scaled to a custom surface area — for example, the size of a solar panel array — to estimate potential yield. Please note that the data is sourced from the station’s solar radiation sensor and actual yields of a photovoltaic system may differ. Values are updated every 24 hours.
Required data: At least one year with at least 80% data availability per month.
Climatological Threshold Days
This diagram shows the following climatological characteristic days, broken down by year:
- Frost days – daily minimum temperature ≤ 0 °C
- Tropical nights – nightly minimum temperature ≥ 20 °C
- Heat days – daily maximum temperature ≥ 30 °C
- Summer days – daily maximum temperature ≥ 25 °C
- Precipitation days – precipitation ≥ 0.2 mm
- Storm days – maximum wind gusts ≥ 70 km/h
- Hours of sunshine – average solar radiation ≥ 120 W/m²
Values are updated every 24 hours.
Required data: At least 48 hours of data per year.
Boxplot
This diagram shows selected sensors (temperature, humidity, air pressure, wind speed, wind gusts, all additional temperature sensors, all additional humidity sensors and particulate matter) grouped by month or year (selectable) as boxplots. The Tukey method is used for the outer quartiles (Q0 and Q4), meaning the whiskers represent the typical data range — at most 1.5 times the interquartile range — rather than the absolute minima and maxima, which helps reduce the influence of outliers. All available periods are included in the quartile calculations (i.e. all Januaries across all years are combined for a monthly grouping, etc.). Values are updated every 72 hours.
Required data: Monthly grouping: at least one month with 80% data availability. Yearly grouping: at least one year with 80% data availability.
Heatmap
This diagram shows absolute values or deviations from the monthly average for all months across all years, for the temperature, precipitation and solar radiation (energy) sensors. The value table displays the monthly average, the value for the selected month and the deviation. Values are updated every 24 hours.
Required data: At least 1 year with more than 80% data availability per month.