Glendale (AZ) Monthly Rainfall & Precipitation

This page shows both the average monthly rainfall and the number of rainy days in Glendale, Arizona, 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.

Glendale sits in an arid zone with minimal moisture, averaging 173 mm (6.8 in) of rainfall per year.

Monthly Precipitation Levels

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

Glendale can be quite wet during August, receiving approximately 30 mm (1.2 in) of precipitation over 7 rainy days.

In contrast June, experiences much drier conditions, with 1.3 mm (0.1 in) of rainfall, spread across a single rainy day.

August, the wettest month, has a maximum daytime temperature of 40°C (104°F). The city receives 360 hours of sunshine in this period. During the driest month June you can expect a temperature of 40°C (104°F). For more detailed insights into the city's temperatures, visit our Glendale Temperature page.

Glendale's average annual precipitation is 173 mm (6.8 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.

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

Melbourne, Australia, has 690 mm (27 in) of rainfall annually, spread fairly evenly throughout the year.

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.

Precipitation has a very strong role in determining the local climate and ecosystem:

• Changing Rainfall Patterns: Global warming causes drastic changes in the patterns of rainfall. Some areas have been experiencing increased frequency and intensity of rainfall, while other areas experience longer dry spells or even droughts.
• Local Impacts: Many regions are experiencing heavier rainfall in the winter months and drier, hotter summers. This affects agriculture, water resources, and ecosystems.

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