Post Falls (ID) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Post Falls.
Climate overview of Post Falls
Temperatures in Post Falls, Idaho, United States of America, vary greatly throughout the year. July is the hottest month at 29°C (84°F), while December is the coldest at 1°C (34°F).
The city receives around 688 mm (27 in) of rain/snowfall per year. It experiences a distinct dry season from July to September. December is the wettest month and July the driest. Sunshine peaks in July, when the city sees around 12.8 hours of sunshine per day.
Post Falls Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Post Falls — and find the best time to visit.
Monthly Temperature in Post Falls
The climate in Post Falls is known for significant temperature differences throughout the year, making the weather dynamic. On average, daytime temperatures range from a comfortable 29°C (84°F) in July to a very cold 1°C (34°F) in December.
Nighttime temperatures range from 12°C (54°F) in July to -5°C (23°F) in December.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Post Falls
Generally, Post Falls receives mid-range precipitation levels, with 688 mm (27 in) annually. The seasons in Post Falls bring significant changes in precipitation. The wettest month, December, receives moderate snow/rainfall, with an average of 100 mm (3.9 in) of precipitation. This snow/rainfall is distributed across 18 snowy/rainy days.
In contrast, the driest month, July, experiences much less rainfall, totaling 17 mm (0.7 in) over 5 rainy days. These distinct seasonal differences provide diverse experiences throughout the year. For more details, please visit our Post Falls Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Sunshine Hours in Post Falls
In Post Falls, summer days are longer and more sunny, with daily sunshine hours peaking at 12.8 hours in July. As the darker season arrives, the brightness of the sun becomes less. December sees a soft sun for only 2.0 hours per average day.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Daily percentage of sunshine
Humidity in Post Falls by Month
The relative humidity is high throughout the year in Post Falls.
The city experiences its highest humidity in December, reaching 86%. In July, the humidity drops to its lowest level at 44%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Best Time to Visit Post Falls
Frequently asked questions about the climate in Post Falls
What is the best time to visit Post Falls?
June, July, August and September typically offer the most optimal weather in Post Falls. In contrast, January, February, March, November and December tend to have less optimal conditions. Post Falls has a distinct dry season from July to September.
What temperatures can I expect in Post Falls?
Daytime highs range from 1°C (34°F) in December to 29°C (84°F) in July. Nighttime lows range from -5°C (23°F) to 12°C (54°F). Temperatures vary considerably through the year.
How much rain does Post Falls get?
Annual rainfall is around 688 mm (27 in). December is the wettest month with 100 mm (3.9 in), while July is the driest with 17 mm (0.7 in). In the coldest months, precipitation may fall as snow/rain.
How sunny is Post Falls?
Post Falls receives around 2,579 hours of sunshine per year. July is the sunniest month with 383 hours, while December is the cloudiest with just 60 hours. Overall, Post Falls enjoys abundant sunshine.
Post Falls 3-Day Forecast
Post Falls (ID) 3-Day Forecast
Post Falls on the map
Post Falls is highlighted — select any city to see its climate.
Popular this month
Where to go in July — average daytime high across popular destinations.
Bucket list
Need travel inspiration? Check out our bucket list articles and be inspired.
Yosemite National Park is definitely worth a visit
Vast forests, blue lakes, towering sequoias, and majestic waterfalls hint at the beauty of Yosemite National Park—a true natural masterpiece.
The 10 most alternative cities in the United States
Discover the top 10 fun and alternative U.S. cities rich in art, culture, and adventure. From Portland's hippy charm to Sedona's stunning landscapes.
Sedona: Explore Majestic Red Rock Landscapes
A picturesque artists' town surrounded by red rocks and known for its spirituality, vortex energy, and stunning hikes like Cathedral Rock.
10 most idyllic villages to visit in the United States
Discover 10 idyllic villages in the USA, from California to Vermont. Explore their unique charm, rich history, stunning nature, and vibrant arts scenes.