Glacier Bay National Park and Preserve (AK) Rainfall & Precipitation: Monthly Averages and Year-Round Insights

This page shows the average amount of rainfall per month in Glacier Bay National Park and Preserve (AK). 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.

Glacier Bay National Park and Preserve has a relatively rain/snowy climate with high precipitation levels, averaging 4303 mm of rain/snowfall annually.

Monthly Precipitation Levels

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

Significant seasonal changes in precipitation occur throughout the year. During the wet season, October receives substantial snow/rainfall, averaging 522 mm of precipitation, recorded across 21 snowy/rainy days.

In contrast, the drier season, June brings less rainfall, with 165 mm over 12 rainy days.

October, the city’s wettest month, has a maximum daytime temperature of 3°C. During the driest month June you can expect a temperature of 9°C. For more detailed insights into the city’s temperatures, visit our Glacier Bay National Park and Preserve 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

Glacier Bay National Park and Preserve’s average annual precipitation is 4303 mm. Let’s compare this to some popular worldwide tourist destinations:

The climate in San Francisco, USA, is influenced by coastal weather, with 469 mm of rainfall mostly during the winter months.

Beijing, China, receives 560 mm of annual precipitation, concentrated in the summer months.

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

Ho Chi Minh City, Vietnam, receives 1955 mm of annual rainfall, with a pronounced wet season from May to November, typical of its tropical monsoon climate.

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 Glacier Bay National Park and Preserve (AK)’s weather, including sunshine hours, humidity levels, and temperature data, visit our Glacier Bay National Park and Preserve (AK) Climate page.