Slidell (LA) Monthly Rainfall & Precipitation

This page shows both the average monthly rainfall and the number of rainy days in Slidell, Louisiana, United States of America. The figures are based on a 30-year period (1990–2020) to provide a reliable average. Now, let's break down all the details for a clearer picture.

Slidell has a notably wet climate with abundant precipitation, recording 1498 mm (59 in) of rainfall per year.

Monthly Precipitation Levels

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

Significant seasonal changes in precipitation occur throughout the year. During the wettest month, August receives substantial rainfall, averaging 197 mm (7.8 in) of precipitation, recorded across 17 rainy days.

In contrast, the driest month, November brings less rainfall, with 69 mm (2.7 in) over 7 rainy days.

August, the wettest month, has a maximum daytime temperature of 33°C (91°F). The city receives 251 hours of sunshine in this period. During the driest month November you can expect a temperature of 21°C (70°F). For more detailed insights into the city's temperatures, visit our Slidell Temperature page.

Slidell's average annual precipitation is 1498 mm (59 in). Let's compare this to some popular worldwide tourist destinations:

In Lisbon, Portugal, the average annual precipitation is 774 mm (30 in), characterized by wet winters and dry summers typical of the Mediterranean climate.

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

Perth, Australia, receives 565 mm (22 in) of rainfall annually, mostly during the winter months.

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.

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.

• 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 Slidell (LA)'s weather, including sunshine hours, humidity levels, and temperature data, visit our Slidell (LA) Climate page.