Alta (WY) Temperature by Month
Alta, Wyoming, United States of America has an average annual maximum temperature of 11°C (52°F), ranging from -2°C (28°F) in January to 26°C (79°F) in July. Below you'll find a full monthly breakdown and a comparison with cities worldwide.
Alta Monthly Temperatures
Depending on the time of the year, temperatures range from warm to very cold in Alta. Nighttime lows follow the same pattern, ranging from 9°C (48°F) to -12°C (10°F).
The chart below illustrates the average maximum day and minimum night temperatures in Alta by month:
The coolest part of the day is typically between 4 AM and 6 AM, while 3 PM is usually the warmest, when solar heating is at its peak. July, the city's warmest month, averages 340 hours of sunshine.
The chart below shows the average temperature throughout the year:
Temperature: Alta vs the United States of America
The map below shows the annual temperature across the United States of America. You can also select individual months if you want to compare a specific time of year.
very warm
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pleasant
moderate
cold
very cold
Alta vs World: Temperature Compared
Alta's average annual maximum temperature is 11°C (52°F). To put that in context, here's how it compares to a few well-known destinations:
Barcelona, Spain has an annual average of around 21°C (70°F), with warm summers and mild, fairly short winters.
On the cooler end, Oslo, Norway averages just 10°C (50°F) annually, with pleasant summers but long, cold winters.
Shanghai, China averages 21°C (70°F) a year, with warm summers, mild winters, and a noticeable spring and autumn.
Melbourne, Australia averages 20°C (68°F) annually — known for unpredictable weather, with four seasons sometimes happening in one day.
Climate temperature data is typically calculated as a 30-year average. This smooths out year-to-year variability and gives a more reliable picture of what a place is actually like, rather than what happened in any single unusual year.
The readings come from a range of sources — land-based weather stations, ocean buoys, ships, and satellites. That data is collected by weather services around the world, then pooled, quality-checked, and averaged to produce the climate records you see here.
Whether a city sits on the coast or deep inland makes a significant difference to its climate. Coastal areas tend to have more stable temperatures year-round — large bodies of water absorb heat slowly in summer and release it gradually in winter, keeping extremes in check. Cities far from the sea don't benefit from that buffer, which is why continental climates tend to have hotter summers and colder winters than their coastal counterparts at the same latitude.
For more on Alta's weather — including monthly rainfall, sunshine hours, and humidity — visit our Alta climate page.
