Great Falls (MT) Temperatures: Monthly Averages and Year-Round Insights
On this page, we’ll explore Great Falls’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 Great Falls is known for significant temperature differences throughout the year. Typically, maximum daytime temperatures range from a comfortable 30°C in July to a very cold 2°C in the coolest month, December. Nights are cooler, with temperatures generally dropping to -9°C, particularly during the colder months.
The chart below illustrates the average maximum day and minimum night temperatures in Great Falls 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. July, the city’s warmest month receives 376 hours of sunshine.
The chart below shows the average temperature throughout the year:
December, the city’s coldest month, receives about 18 mm of rainfall spread over roughly 7 days. For more information, please visit our Great Falls 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.
very warm
warm
pleasant
moderate
cold
very cold
Great Falls Temperatures Compared World Wide
Great Falls’s average annual maximum temperature is 14°C. Let’s compare this with some popular tourist destinations:
In Barcelona, Spain, the average annual temperature is around 21°C, resulting in warm summers and mild winters throughout the year.
In contrast, in ReykjavÃk, Iceland, the average annual temperature is significantly lower at 9°C, with mild summers and cold winters.
Meanwhile, New York City, USA, experiences a more pronounced seasonal variation with an average annual temperature of 17°C.
In Brisbane, Australia, the average annual temperature is 26°C, making it warmer than Sydney.
How does the temperature feel?
Humidity is an essential factor in how you experience temperature. When a warm period is accompanied by high humidity, it results in a higher perceived temperature. This is especially true when temperatures exceed 25°C, as it can cause greater discomfort.
On the other hand, in cooler months, especially when temperatures dip below 10°C, high humidity can intensify the cold. This makes the air feel much colder than it really is.
In Great Falls, during the coolest month, December, you will experience 59% humidity, which is considered moderate. This is accompanied by an average maximum temperature of 2°C. In the warmest month, July, the humidity is 37% combined with an average maximum temperature of 30°C, which creates a low-feel temperature. Explore our detailed page on humidity levels for further details.
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.
Effects of Temperature on Weather and Climate
Temperature variations influence precipitation patterns in Amsterdam:
Rainfall: Warm air holds more moisture, leading to heavier rain during warmer months. However, precipitation is generally moderate year-round.
Snow: Occasional snowfall occurs in winter, though it rarely lasts very long.
For more detailed information about Great Falls’s weather, including monthly rainfall, sunshine hours, and humidity levels, visit our Great Falls climate page.
Current temperature in Great Falls (MT)
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