Geography & Climate

Idaho Falls is located at an elevation of 4,730 feet on the eastern edge of the curved depression of the Snake River Plain that runs across southern Idaho. The Snake River Plain geology results from volcanic activity that is responsible for lava flows including Craters of the Moon and the geysers and hot springs of nearby Yellowstone National Park.

 

The immediate area around Idaho Falls is known as high-altitude sagebrush-grassland steppe, and is considered a high desert, with annual precipitation of 10.9 in, mostly falling as winter snow and early spring and fall rains. The average snowfall is 37.5 in. Seasonal and daily temperature extremes vary widely, from a high average in July of 86 °F to the average low in January of 10 °F.

 

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Annual
Average Max. Temperature (F)	27	34	44	57	67	76	86	84	74	60	42	30	56.8
Average Min. Temperature (F)	10	15	24	31	39	46	51	49	41	31	22	13	30.9
Average Total Precipitation (in.)	0.8	0.7	0.8	0.9	1.38	1.2	0.5	0.7	0.7	0.8	0.8	0.8	10.03
Average Total SnowFall (in.)	8.7	6.4	3.8	2.2	0.5	0	0	0	0	0.7	4.5	8.6	35.5
Average Snow Depth (in.)	5	4	2	0	0	0	0	0	0	0	0	3	1