West Yellowstone (MT) Rainfall & Precipitation: Monthly Averages and Year-Round Insights

This page shows the average amount of rainfall per month in West Yellowstone (MT). The numbers are calculated over a 30-year period to provide a reliable average. Now, let’s break down all the details for a clearer picture.

Generally, West Yellowstone experiences moderate precipitation patterns, averaging 648 mm yearly.

Monthly Precipitation Levels

The average number of days each month with precipitation (> 0.2 mm)

The seasons in West Yellowstone, bring significant changes in precipitation. The wettest month, December, receives moderate snowfall, with an average of 80 mm of precipitation.

This snowfall is distributed across 16 snowy days. In contrast, the driest month, August, experiences much less rainfall, totaling 27 mm over 8 rainy days. These distinct seasonal differences provide diverse experiences throughout the year.

Annual Precipitation in the United States of America

The map below shows the annual precipitation across the United States of America. You can also select the different months in case you are interested in a specific month.

Amsterdam Precipitation Compared World Wide

West Yellowstone’s average annual precipitation is 648 mm. Let’s compare this to some popular worldwide tourist destinations:

The city of Rome, Italy, has an average annual precipitation of 832 mm, spread fairly evenly throughout the year.

In Seoul, South Korea, the average annual precipitation is 1237 mm, with most rain falling during the summer monsoon season.

In Tokyo, Japan, the average annual precipitation is 1528 mm, with significant summer rains due to typhoon season.

Bangkok, Thailand, experiences a tropical monsoon climate with 1668 mm of annual rainfall, with the heaviest precipitation occurring during September and October.

How is Precipitation Measured?

Precipitation amounts are measured using specific gauges installed at weather stations, collecting both rain and snow and any other type of precipitation. Rainfall is measured directly in millimeters, while that from snow and ice is obtained by melting it. Automated systems often incorporate heaters to make this easier.

Information from these stations is transmitted via Wi-Fi, satellite, GPS, or telephone connections to central monitoring networks. This information is immediately updated and integrated into weather models and forecasts.

Interesting weather facts

• Mawsynram in India is noted as being the wettest place on earth, with over 11 meters of rain falling every year.
• In contrast, Antofagasta in Chile is among the driest places on the planet, getting less than 0.1mm per year, with some years recording virtually no rainfall.
• Nearly 1,650 thunderstorm cells are estimated over the planet at any given time.

For more detailed information about West Yellowstone (MT)’s weather, including sunshine hours, humidity levels, and temperature data, visit our West Yellowstone (MT) Climate page.