Phoenix (Phoenix, AZ) is the capital of the state of Arizona in the United States, known for its vast desert and hot climate. This city experiences a dry desert climate, with dry weather persisting for most of the year. In this blog post, we will take a closer look at the average number of rainy days in Phoenix, monthly average precipitation, annual average snowfall, monthly average snowfall, the highest recorded rainfall and snowfall, and the climate characteristics.

Average Annual Rainy Days

Phoenix receives an average of about 35 days of rain per year. This is relatively low compared to other major cities in the United States. Rainfall is mainly concentrated in the spring and summer monsoon season, with short and intense downpours occurring frequently in the summer. In winter, rainfall is relatively less, but it still remains dry.

Monthly Average Precipitation

The monthly average precipitation in Phoenix varies greatly depending on the season and the monsoon. The average precipitation for each month is as follows:

• January: About 1.2 inches of rain.
• February: About 1.4 inches of rain.
• March: About 1.8 inches of rain.
• April: About 1.0 inch of rain.
• May: About 0.8 inches of rain.
• June: About 0.5 inches of rain.
• July: About 0.4 inches of rain.
• August: About 0.5 inches of rain.
• September: About 1.0 inch of rain.
• October: About 0.7 inches of rain.
• November: About 1.0 inch of rain.
• December: About 1.2 inches of rain.

Main Features:

• Spring (March to May): During spring, rainfall gradually decreases, and dry weather persists. However, occasional heavy thunderstorms can lead to downpours.

• Summer (June to August): Summer is the monsoon season, with frequent short and intense thunderstorms. These downpours can bring a lot of rain in a short time, posing a flood risk.

• Autumn (September to November): In autumn, rainfall increases again, especially in September and November, where precipitation may rise due to the monsoon influence.

• Winter (December to February): Winter is relatively dry, but there are days with rain. Snowfall is rare, and mild temperatures persist.

Average Annual Snowfall

Phoenix has a primarily desert climate, resulting in very little snowfall. The average annual snowfall is less than 0.5 inches, with most weather being rain rather than snow. Only a small amount of snow may fall in rare cases of high elevation or unusually cold weather.

Record Highs

Highest Recorded Rainfall: The highest recorded rainfall in Phoenix occurred during a monsoon downpour in July 1995, with 5.0 inches (about 127mm) of rain. This amount of rainfall was concentrated over a short period, resulting in severe flooding and inundation in the area.

Highest Recorded Snowfall: The highest recorded snowfall in Phoenix was 0.6 inches (about 15mm) of snow that fell in February 1932. This was a very rare event, as snow rarely falls.

Climate Characteristics

Phoenix has a vast desert climate, with dry weather persisting for most of the year. Here are the climate characteristics of Phoenix:

• Desert Climate: Phoenix has a desert climate (Dry Desert Climate), characterized by very low annual rainfall and predominantly dry weather. In summer, extremely high temperatures and low humidity are experienced.

• Monsoon Influence: In summer, the influence of the northwestern monsoon can lead to short and intense thunderstorms, bringing sudden downpours. This increases the risk of flooding and inundation.

• Temperature Variation: Phoenix records very high temperatures in summer while maintaining mild temperatures in winter. Extreme temperature variations are rare, but temperatures can drop sharply at night.

In the event of unusual downpours, significant impacts can occur on transportation and daily life.