Has it Ever Snowed in Phoenix, Arizona?
Yes, it has snowed in Phoenix, Arizona, though it’s a rare occurrence. While snow in Phoenix is uncommon, accumulating snow is even rarer, happening only a few times a century.
Phoenix, known for its scorching desert climate, experiences very mild winters. The average low temperature in January, the coldest month, is around 45°F (7°C), barely flirting with freezing. So, when snow does fall, it’s a notable event.
How Often Does it Snow in Phoenix?
Snowfall in Phoenix is infrequent. Measurable snowfall, defined as at least 0.1 inches of accumulation, occurs only once every few years. Often, even when snow is observed, it’s just a few flurries that don’t stick to the ground. Actual accumulating snowfall that impacts the city is much less frequent, perhaps every couple of decades. The most recent significant snowfall was in 1990, and then again in 2019.
Historical Snowfall Events in Phoenix
Throughout recorded weather history, several snowfall events have been documented in Phoenix. Some of the most notable include:
- January 20, 1933: This event brought a significant snowfall, considered by many to be the most substantial snowfall in Phoenix history.
- January 21-22, 1937: Another notable snowfall event occurred during this period.
- February 2, 1939: Phoenix experienced more snowfall.
- December 20, 1990: This was a more recent event, with measurable snow falling across the city.
- February 22, 2019: Light snow fell in parts of the Phoenix metropolitan area. While not a major event, it was enough to excite locals unaccustomed to seeing snow.
To learn more about historical climate data and averages in Phoenix, you can consult Wikipedia’s article on the climate of Phoenix, Arizona.
Why is Snow So Rare in Phoenix?
Several factors contribute to the rarity of snowfall in Phoenix:
- Low Elevation: Phoenix sits at a relatively low elevation (around 1,100 feet above sea level), meaning temperatures are generally warmer compared to higher-elevation areas.
- Desert Climate: As a desert city, Phoenix is typically dry. Snow formation requires both cold temperatures and sufficient moisture, which are often lacking.
- Geographic Location: Phoenix is located in a region where cold air masses from the north rarely penetrate deeply enough to bring freezing temperatures and precipitation simultaneously.
Impact of Snow on Phoenix
Even a small amount of snow can cause significant disruption in Phoenix. Residents are not accustomed to driving in snowy conditions, leading to traffic accidents and delays. Schools and businesses may close. The novelty of snow also draws people outdoors, creating a festive atmosphere mixed with potential chaos.
Frequently Asked Questions
What is the record snowfall in Phoenix?
While difficult to pinpoint the exact amount, the snowfall on January 20, 1933, is widely considered the most significant in Phoenix history.
When was the last time it snowed in Phoenix?
Light snow fell in parts of the Phoenix metropolitan area on February 22, 2019.
Does it snow in other parts of Arizona more frequently?
Yes, areas like Flagstaff, located at a much higher elevation, experience significant snowfall every winter.
What temperature does it have to be for snow in Phoenix?
The air temperature needs to be at or below freezing (32°F or 0°C), but the ground temperature also plays a role.
How do Phoenix residents react to snow?
Phoenix residents are generally excited by even the smallest amount of snow, as it is such a rare event. It often leads to widespread social media posts and impromptu snow activities.
Summary
While snow in Phoenix is a rare occurrence, it has happened throughout history. Due to its low elevation, desert climate, and geographic location, Phoenix does not typically experience the conditions necessary for snowfall. When it does snow, it’s a notable event that brings excitement and some disruption to the city.