Idyllwild (CA) Monthly Rainfall & Precipitation

This page shows both the average monthly rainfall and the number of rainy days in Idyllwild, California, United States of America. 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.

Generally, Idyllwild has a moderate amount of precipitation, averaging 565 mm (22 in) of rain/snowfall annually. However, it does experience a distinct dry season during certain months. Take a look at our detailed charts below to see the seasonal variation.

Monthly Precipitation Levels

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

Idyllwild can be quite wet during December, receiving approximately 135 mm (5.3 in) of precipitation over 9 rainy days.

In contrast June, experiences much drier conditions, with 1.2 mm (0.05 in) of rainfall, spread across a single rainy day.

December, the wettest month, has a maximum daytime temperature of 11°C (52°F). During the driest month June you can expect a temperature of 26°C (79°F). For more detailed insights into the city's temperatures, visit our Idyllwild Temperature page.

Idyllwild's average annual precipitation is 565 mm (22 in). Let's compare this to some popular worldwide tourist destinations:

New York City, USA, receives 1276 mm (50 in) of rainfall annually, with precipitation evenly distributed throughout the year.

In Seoul, South Korea, the average annual precipitation is 1237 mm (49 in), with most rain falling during the summer monsoon season.

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

Mumbai, India, experiences a tropical monsoon climate with 1860 mm (73 in) of annual rainfall, with the majority of precipitation happening during the monsoon season from June to September.

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.

• "Ginger" was the longest-lasting Atlantic tropical storm, which spun around the open ocean for 28 days in 1971.
• The world's largest snowflake was recorded in the Guinness Book of Records, at 38 cm (15 inches) wide and 20 cm (7.9 inches) thick. The snowflake fell at Fort Keogh, Montana, USA, on 28 January 1887.
• The greatest snowfall recorded was on Mt. Rainier, Washington State, USA, over 31.5 meters (103 feet) fell during the winter of 1972.

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