Idaho Falls Weather Year-Round — Best Time to Visit
Idaho Falls, United States has cool weather year-round. The best time to visit is July (score: 95/100). Annual average high: 14.4°C, total rainfall: 354mm.
When is the best time to visit Idaho Falls?
95
July is the best month to visit Idaho Falls with a travel score of 95/100 (Excellent).
Expect highs of 31.7°C, 2 rain days, and 14.3 hours of daily sunshine.
View July weather details →Travel Score by Month
42
Jan
50
Feb
62
Mar
69
Apr
77
May
89
Jun
95
Jul
95
Aug
90
Sep
75
Oct
58
Nov
42
Dec
Excellent (80+)
Good (60-79)
Mixed (40-59)
Poor (<40)
What are the average temperatures in Idaho Falls each month?
14.4°C
Avg High
2.1°C
Avg Low
354mm
Annual Rain
How much rain does Idaho Falls get?
Idaho Falls receives 354mm of rain annually. The wettest month is typically May with 46mm, while July is the driest.
What is the weather like each month in Idaho Falls?
January
42
-1°C
Low: -10°C
9 rain days
Mixed
February
50
2°C
Low: -8°C
8 rain days
Mixed
March
62
8°C
Low: -3°C
8 rain days
Good
April
69
13°C
Low: 0°C
10 rain days
Good
May
77
19°C
Low: 5°C
9 rain days
Good
June
89
25°C
Low: 11°C
5 rain days
Excellent
July
Best time to visit95
32°C
Low: 16°C
2 rain days
Excellent
August
95
30°C
Low: 14°C
3 rain days
Excellent
September
90
24°C
Low: 9°C
4 rain days
Excellent
October
75
15°C
Low: 3°C
6 rain days
Good
November
58
6°C
Low: -3°C
7 rain days
Mixed
December
42
0°C
Low: -8°C
9 rain days
Mixed
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Data based on 1994–2024 averages · Last updated: 2024-12-31