Harriman (TN) Rainfall & Precipitation: Monthly Averages and Year-Round Insights

This page shows the average amount of rainfall per month in Harriman (TN). 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.

Harriman has a relatively rain/snowy climate with high precipitation levels, averaging 1451 mm of rain/snowfall annually.

Monthly Precipitation Levels

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

Harriman offers a pleasant mix of wetter and slightly drier months. The difference in precipitation between July (176 mm) and October (92 mm) is not too significant, making the climate enjoyable for visitors and residents alike.

July, the city’s wettest month, has a maximum daytime temperature of 31°C and receives 288 hours of sunshine. During the driest month October you can expect a temperature of 21°C. For more detailed insights into the city’s temperatures, visit our Harriman 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

Harriman’s average annual precipitation is 1451 mm. Let’s compare this to some popular worldwide tourist destinations:

In Toronto, Canada, annual precipitation averages [964 mm], with snowy winters and rainy summers.

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

Perth, Australia, receives 565 mm of rainfall annually, mostly during the winter months.

Singapore, situated near the equator, gets 2581 mm of rainfall annually, with no distinct dry season and consistent monthly precipitation.

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 Harriman (TN)’s weather, including sunshine hours, humidity levels, and temperature data, visit our Harriman (TN) Climate page.