Calw Monthly Rainfall & Precipitation

This page shows both the average monthly rainfall and the number of rainy days in Calw, Baden-Württemberg, Germany. This average is based on long-term data collected between 1990 and 2020. Let's explore the details to provide you with a complete overview.

Calw experiences significant rain/snowfall throughout the year, averaging 1177 mm (46 in) of precipitation annually.

Monthly Precipitation Levels

The average number of days each month with precipitation (> 0.2 mm (0.01 in))

Precipitation levels in Calw remain relatively steady throughout the year. July has the most rain, with 121 mm (4.8 in) over 15 days. In April, this drops slightly to 81 mm (3.2 in), making the city's climate fairly predictable.

July, the wettest month, has a maximum daytime temperature of 24°C (75°F). The city receives 235 hours of sunshine in this period. During the driest month April you can expect a temperature of 15°C (59°F). For more detailed insights into the city's temperatures, visit our Calw Temperature page.

Annual Rainfall in Germany: City Comparison

The map below shows the annual precipitation across Germany. You can also select the different months in case you are interested in a specific month.

Annual

Annual

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Legend

heavy rainfall

high

moderate

low

almost none

Heavy annual rainfall has been defined as more than 1000 mm (39 in) precipitation. High: 600 mm (24 in) to 1000 mm (39 in). Moderate: 250 mm (9.8 in) to 600 mm (24 in). Low: less than 250 mm (9.8 in).

Calw vs World: Rainfall Compared

Calw's average annual precipitation is 1177 mm (46 in). Let's compare this to some popular worldwide tourist destinations:

Boston, USA, experiences 1238 mm (49 in) of annual precipitation, including significant snowfall during the winter.

Osaka, Japan, experiences 1507 mm (59 in) of rainfall annually, spread across the year with wetter summers.

Adelaide, Australia, enjoys 511 mm (20 in) of annual precipitation, with dry summers and wet winters.

Ho Chi Minh City, Vietnam, receives 1955 mm (77 in) of annual rainfall, with a pronounced wet season from May to November, typical of its tropical monsoon climate.

How is Precipitation Measured?

Precipitation amounts are measured using specific gauges installed at weather stations, collecting both rain and snow and any other type of precipitation. Rainfall is measured directly in millimeters, while that from snow and ice is obtained by melting it. Automated systems often incorporate heaters to make this easier.

Information from these stations is transmitted via Wi-Fi, satellite, GPS, or telephone connections to central monitoring networks. This information is immediately updated and integrated into weather models and forecasts.

Rainy Seasons: Many parts of the world have well-defined wet seasons where precipitation is distinctly higher. These are normally accompanied by lush vegetation and temperature patterns.

Dry Seasons: In areas where the climate is either desert or Mediterranean, the amount of precipitation is drastically reduced, leading to a shortage of water and arid conditions.

Interesting weather facts

Mawsynram in India is noted as being the wettest place on earth, with over 11 meters (36 feet) of rain falling every year.
In contrast, Antofagasta in Chile is among the driest places on the planet, getting less than 0.1mm (0.004 inches) per year, with some years recording virtually no rainfall.
Nearly 1,650 thunderstorm cells are estimated over the planet at any given time.

For more detailed information about Calw's weather, including sunshine hours, humidity levels, and temperature data, visit our Calw Climate page.

Current rainfall in Calw

10-Day Forecast