Green River (WY) Rainfall & Precipitation: Monthly Averages and Year-Round Insights

This page shows the average amount of rainfall per month in Green River (WY). The numbers are calculated over a 30-year period to provide a reliable average. Let's now guide you through the details for a complete overview.

Green River sits in an arid zone with minimal moisture, averaging 240 mm of rain/snowfall per year.

Monthly Precipitation Levels

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

The seasons in Green River, bring significant changes in precipitation. The wettest month, May, receives moderate rainfall, with an average of 44 mm of precipitation.

This rainfall is distributed across 9 rainy days. In contrast, the driest month, January, experiences much less snowfall, totaling 7.1 mm over 5 snowy days. These distinct seasonal differences provide diverse experiences throughout the year.

May, the city’s wettest month, has a maximum daytime temperature of 18°C. During the driest month January you can expect a temperature of 1°C. For more detailed insights into the city’s temperatures, visit our Green River Temperature page.

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

Green River’s average annual precipitation is 240 mm. Let’s compare this to some popular worldwide tourist destinations:

In Barcelona, Spain, the average annual precipitation is 620 mm, evenly distributed across the year with no extreme wet or dry seasons.

In Shanghai, China, the annual average precipitation is 1347 mm, with a humid subtropical climate.

Adelaide, Australia, enjoys 511 mm of annual precipitation, with dry summers and wet winters.

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

• The U.S. has a significant number of thunderstorms every year, with over 14.6 million taking place across the world annually.
• Approximately 70% of lightning bolts strike land rather than oceans.
• A storm named John was the longest-lasting Pacific tropical storm, continuing for 31 days. As it crossed the dateline twice, it changed status from a hurricane to a typhoon and back to a hurricane.

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