Phoenix experiences a significant number of days with temperatures reaching 110 degrees Fahrenheit (43.3 degrees Celsius) or higher each year. While the average annual count between 1991 and 2020 was 21 days, the city has recently seen a dramatic increase, recording an unprecedented 55 such days in a recent year.
Understanding Phoenix's Extreme Heat
Phoenix is renowned for its intense summer heat, where temperatures frequently soar into triple digits. Days hitting 110°F or more are a defining characteristic of the city's climate, posing unique challenges for residents and visitors alike. Understanding the frequency and patterns of these extreme heat days is crucial for planning and adaptation.
Key Statistics on 110-Degree Days in Phoenix
The frequency of 110-degree days in Phoenix can vary significantly from year to year, but historical data provides a clear picture of what to expect.
Historical Averages and Records
Based on meteorological data, particularly from the period between 1991 and 2020, Phoenix has established a clear pattern for its hottest days.
- Average Annual Occurrences: The city of Phoenix typically averages 21 days per year where temperatures reach or exceed 110 degrees Fahrenheit. This figure represents the long-term normal for extreme heat events.
- Record-Breaking Year: In a recent record-setting year, Phoenix experienced 55 days at or above 110 degrees Fahrenheit. This far surpassed the historical average, highlighting the potential for increasingly intense and prolonged heat waves.
- Typical Seasonality: The period for 110-degree days in Phoenix usually begins around June 11, which is the average date for the first occurrence of such extreme heat. These intense temperatures typically persist through August.
Summary Table
To provide a clear overview, here are the key statistics regarding 110-degree days in Phoenix:
| Metric | Value | Period/Notes |
|---|---|---|
| Average Annual 110°+ Days | 21 | Based on 1991-2020 data |
| Record 110°+ Days in a Year | 55 | Occurred in a recent, single year |
| Average First 110°+ Day | June 11 | Based on 1991-2020 data |
| Average Last 110°+ Day | August | Month typically marking the end of the season |
Implications of Extreme Heat in Phoenix
The increasing number of 110-degree days has significant implications for public health, infrastructure, and daily life in Phoenix. Residents and authorities often implement strategies to cope with and mitigate the effects of these extreme temperatures.
- Public Health Concerns: Extended periods of high heat increase the risk of heat-related illnesses, such as heatstroke and heat exhaustion.
- Energy Consumption: Air conditioning usage surges, putting a strain on the power grid and leading to higher energy bills.
- Outdoor Activities: Many outdoor activities are restricted or moved indoors during the hottest parts of the day.
For more detailed insights into Phoenix's climate and how these extreme temperatures are projected to evolve, resources like Axios Phoenix provide valuable information.
