Idaho Falls January Weather

Typical Idaho Falls January Weather 1991–2020
Average daily high	28.7 °F
Average daily low	11.9 °F
Average monthly precipitation	0.6 inches

Idaho Falls January Weather Records 1948–2023
Highest temperature	57 °F	January 31, 2003
Lowest temperature	-33 °F	January 31, 1985
Highest daily low	41 °F	January 31, 2003
Lowest daily high	-13 °F	January 1, 1979
Hottest average temperature	12.1 °F above average	1953
Coldest average temperature	-16.4 °F below average	1949
Most daily precipitation	0.8 inches	January 21, 1969
Most monthly precipitation	2.4 inches	1969

Day	Average (°F)		Record (°F)
	High	Low	High	Low
January 1	28.4	11.7	53	-33
January 2	28.3	11.7	45	-25
January 3	28.2	11.6	46	-14
January 4	28.1	11.5	45	-20
January 5	28.1	11.6	47	-24
January 6	28.2	11.5	47	-23
January 7	28.3	11.5	51	-22
January 8	28.3	11.5	46	-22
January 9	28.3	11.6	51	-23
January 10	28.4	11.7	49	-16
January 11	28.6	11.9	44	-27
January 12	28.6	11.9	48	-33
January 13	28.6	11.9	48	-21
January 14	28.6	11.9	45	-19
January 15	28.7	12.0	45	-21
January 16	28.8	12.0	48	-14
January 17	28.9	12.2	44	-24
January 18	29.1	12.3	48	-27
January 19	29.2	12.4	45	-22
January 20	29.3	12.5	51	-21
January 21	29.5	12.6	44	-29
January 22	29.6	12.8	50	-27
January 23	29.7	12.6	52	-29
January 24	29.9	12.6	46	-18
January 25	30.0	12.6	53	-25
January 26	30.1	12.6	47	-18
January 27	30.2	12.7	46	-29
January 28	30.3	12.7	46	-25
January 29	30.5	12.8	47	-29
January 30	30.7	13.0	50	-27
January 31	31.0	13.2	57	-33