Idaho Falls Weather Records

Idaho Falls, Idaho weather averages and records from 1948–2023 based on data made available by the NOAA.

All-Time Recorded High

The highest temperature ever recorded in Idaho Falls, Idaho was 102 °F which occurred on June 25, 1988.

Highest Temperatures: All-Time By Year

All-Time Recorded Low

The lowest temperature ever recorded in Idaho Falls, Idaho was -38 °F which occurred on February 1, 1985.

Lowest Temperatures: All-Time By Year

Idaho Falls Weather by Month

Averages based on the years 1991–2020

Month	Average (°F)		Record (°F)		Average (inches)
Month	High ☀️	Low 🌙	High ☀️	Low 🌙	Precipitation 💧
January	28.7	11.9	57	-33	0.6
February	34.1	15.5	62	-38	0.5
March	47.2	25.8	73	-16	0.8
April	57.7	31.8	86	13	1.1
May	67.6	38.8	94	17	1.5
June	76.5	44.7	102	29	1.1
July	87.2	49.6	101	33	0.4
August	85.7	47.8	100	28	0.6
September	75.1	40.5	100	18	0.9
October	59.6	31.2	88	-3	0.9
November	43.2	21.9	71	-19	0.6
December	30.6	13.5	58	-31	0.7
Entire year	58.0	31.3	102	-38	9.8

More Idaho Falls Weather Records 1948–2023
Highest daily low	71 °F	August 8, 1983
Lowest daily high	-13 °F	January 1, 1979
Greatest daily range (Difference of high and low)	57 °F	August 4, 1979
Difference in high temperature over two conscutive days	38 °F	Jun 6–7, 1950
Most daily precipitation	1.7 inches	May 6, 1993
Most monthly precipitation	4.3 inches	May 1981
Most yearly precipitation	15.8 inches	1980
Earliest freeze	August 25	1992
Earliest day ≥ 70 °F	March 15	2015
Earliest day ≥ 80 °F	April 15	1985
Earliest day ≥ 90 °F	May 16	1964
Latest freeze	June 26	1976
Latest day ≥ 70 °F	November 6	2020
Latest day ≥ 80 °F	October 14	1958
Latest day ≥ 90 °F	September 30	1957
Most days in a year < 0 °F	43	1985
Most days in a year < 32 °F	199	2002
Most days in a year ≥ 80 °F	100	2021
Most days in a year ≥ 90 °F	58	2022
Most days in a year ≥ 100 °F	2	2002

Idaho Falls Weather Streaks Most consecutive days...
With precipitation	13 days	Jan 3–15, 1980
Without precipitation	63 days	Sep 12 – Nov 13, 1952
Freezing temperatures High temperature ≤ 32 °F	49 days	Jan 22 – Mar 10, 1964
High temperature ≥ 80 °F	73 days	Jun 29 – Sep 9, 1998
High temperature ≥ 90 °F	18 days	Jul 15 – Aug 1, 2023

Idaho Falls Weather by Year

More Idaho Falls Weather

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Weather Station Details

Years	Station	Coordinates
1948–2023	Idaho Falls Fanning Field	location