Casper (WY) Temperatures: Monthly Averages and Year-Round Insights
On this page, we’ll explore Casper’s temperature statistics in detail, including day and night variations and monthly averages. We’ll also compare the annual temperature to other cities in the United States of America.
Monthly Temperature Averages
The climate in Casper is dynamic, ranging widely from very cold in winter to very warm in summer. On average, maximum daytime temperatures range from a very warm 31°C in July to a very cold 2°C in December. Nighttime temperatures can drop, with averages reaching -9°C in December.
The chart below illustrates the average maximum day and minimum night temperatures in Casper by month:
The minimum temperature is often recorded between 4 AM and 6 AM, while the highest temperature is usually reached at 3 PM. During this time the sun's heating effect is the strongest.
The chart below shows the average temperature throughout the year:
July, the city’s warmest month, also receives about 29 mm of rainfall spread over roughly 8 days. For more information, please visit our Casper Precipitation page.
Annual Temperatures in the United States of America Compared
The map below shows the annual temperature across the United States of America. You can also select the different months in case you are interested in a specific month.
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Casper Temperatures Compared World Wide
Casper’s average annual maximum temperature is 15°C. Let’s compare this with some popular tourist destinations:
Athens, Greece, experiences an average annual temperature of 23°C, with hot summers and mild winters typical of a Mediterranean climate.
In contrast, in Zermatt, Switzerland, the average annual temperature is significantly lower at 4°C, with mild summers and very cold winters.
Meanwhile, New York City, USA, experiences a more pronounced seasonal variation with an average annual temperature of 17°C.
Perth, Australia, experiences a Mediterranean climate, with a pleasant average temperature of 25°C.
How are these Temperatures Measured?
Generally, temperature data depicting climate is usually given over a 30-year average in order to reduce short-term fluctuations and reveal better long-term trends in climate conditions.
This temperature data is taken from land-based thermometers, ocean buoys, ships, and satellites. These measurements are transmitted to weather stations and climate centers around the globe where they are processed, averaged, and analyzed in order to monitor the trends and create climate models.
Temperatures in the Mountains
Although not all regions have mountains, elevated areas exhibit distinct temperature variations.
- Sun Exposure: Sunlit slopes tend to be warmer, while shaded areas remain cooler.
- Altitude Effects: Temperatures drop by approximately 6°C for every 1,000 meters of elevation, creating distinct microclimates.
For more detailed information about Casper’s weather, including monthly rainfall, sunshine hours, and humidity levels, visit our Casper climate page.
Current temperature in Casper (WY)
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