September Rainfall and Precipitation in Idaho
Average rainfall, rainy days and the driest cities in Idaho, the United States of America in September.
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Best Places to Visit in Idaho in September
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Monthly precipitation
0 mm (0 in) dry → 150 mm (5.9 in) wet
Marker color shows total monthly precipitation in September: pale blue is dry, deep blue is wet.
Idaho precipitation in September: frequently asked questions
How much rainfall does Idaho, the United States of America receive in September?
Rainfall in Boise during September is on the lighter side, averaging about 13 mm (0.5 in). Expect predominantly dry weather punctuated by short showers.
How many days does it rain in Idaho, the United States of America in September?
Rainfall in Boise typically falls on roughly 5 days days in September.
Is September part of the rainy season in Idaho, the United States of America?
No. September sits outside the typical rainy season in Idaho, the United States of America, so you can expect drier conditions overall.
What is the wettest city in September in Idaho, the United States of America?
Based on our records, Victor receives the most rainfall in Idaho, the United States of America in September, averaging about 47 mm (1.9 in).
What is the driest city in September in Idaho, the United States of America?
Based on our database, Hagerman sees the least rainfall in Idaho, the United States of America in September, with around 8.6 mm (0.3 in) on average.
Interested in more climate information?
We have much more information about the climate in Idaho.
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