The highest temperature ever recorded in Phoenix, AZ was 122F. Express this temperature in C.
The correct answer and explanation is :
To convert Fahrenheit (°F) to Celsius (°C), we use the formula:
[
C = \frac{5}{9} (F – 32)
]
Substituting ( F = 122 ):
[
C = \frac{5}{9} (122 – 32)
]
[
C = \frac{5}{9} (90)
]
[
C = 50
]
So, the highest temperature ever recorded in Phoenix, AZ, 122°F, is equivalent to 50°C.
Explanation
The Fahrenheit and Celsius scales are two common temperature measurement systems. Fahrenheit is used primarily in the United States, while Celsius is the standard in most other countries and for scientific purposes.
The formula for conversion, ( C = \frac{5}{9} (F – 32) ), adjusts for the different starting points and scaling of these two systems:
- 32°F is the freezing point of water, while in Celsius, it’s 0°C.
- 212°F is the boiling point of water, corresponding to 100°C.
- The scale increments are different: 1°C represents a larger change in temperature than 1°F.
Phoenix, Arizona, is known for its extreme summer heat due to its desert climate. A temperature of 50°C is dangerously high, with potential for heat-related illnesses such as heat exhaustion or heat stroke. This temperature is rare globally but is becoming more common in some hot regions due to climate change.
For perspective, 50°C is hotter than the average temperature in the Sahara Desert during peak summer. At this temperature, asphalt can reach over 70°C (158°F), which is hot enough to cause burns. This highlights the importance of staying hydrated and seeking shade during extreme heat events.