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Foothill Ranch (CA) Monthly Rainfall & Precipitation

This page shows both the average monthly rainfall and the number of rainy days in Foothill Ranch, California, 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.

Foothill Ranch tends toward drier weather patterns, receiving approximately 301 mm (12 in) of rain per year. The city experiences a distinct dry season during certain months, contributing to seasonal contrasts shown in the charts below.

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, December receives substantial rainfall, averaging 94 mm (3.7 in) of precipitation, recorded across 8 rainy days.

In contrast, the driest month, June brings less rainfall, with 0.4 mm (0.02 in) over 0 rainy days.

December, the wettest month, has a maximum daytime temperature of 19°C (66°F). The city receives 205 hours of sunshine in this period. During the driest month June you can expect a temperature of 28°C (82°F). For more detailed insights into the city's temperatures, visit our Foothill Ranch Temperature page.

Annual Rainfall in the United States of America: City Comparison

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

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).

Foothill Ranch vs World: Rainfall Compared

Foothill Ranch's average annual precipitation is 301 mm (12 in). Let's compare this to some popular worldwide tourist destinations:

Seville, Spain, experiences 541 mm (21 in) of rainfall annually, with wet winters and dry summers typical of southern Spain.

Beijing, China, receives 560 mm (22 in) of annual precipitation, concentrated in the summer months.

In Brisbane, Australia, the annual precipitation is 979 mm (39 in), making it wetter than Sydney.

Singapore, situated near the equator, gets 2581 mm (102 in) of rainfall annually, with no distinct dry season and consistent monthly precipitation.

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.

Sea vs. Land Precipitation

The proximity of a location to a large body of water can significantly affect its rainfall patterns:

  • Ocean Influence: Coastal regions typically receive more rainfall due to the presence of moisture-laden winds from the ocean. These regions tend to have more humid climates and experience more frequent precipitation, especially in winter.
  • Continental Climates: Areas further from the sea, such as inland or continental regions, experience less frequent rainfall and more extreme seasonal variations in precipitation.
Interesting weather facts

  • "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 Foothill Ranch (CA)'s weather, including sunshine hours, humidity levels, and temperature data, visit our Foothill Ranch (CA) Climate page.


Current rainfall in Foothill Ranch (CA)

More climate data for Foothill Ranch