Idaho Falls Weather in 1966

Historical record of Idaho Falls, Idaho weather for the year 1966 based on NOAA data.

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1966 Idaho Falls Weather Extremes
Highest temperature	100 °F	July 30
Lowest temperature	-15 °F	December 30
Highest daily low	64 °F	July 31
Lowest daily high	15 °F	December 28
Most daily precipitation	0.8 inches	May 10
Most daily snow	4.0 inches	December 29
Total annual precipitation	7.0 inches	-
Total annual snow	18.7 inches	-

What was the hottest temperature in Idaho Falls in 1966?

The highest temperature recorded in Idaho Falls, Idaho in 1966 was 100 °F which happened on July 30.

Highest Temperatures: All-Time By Year

Highest Temperatures in Idaho Falls in 1966

Rank	Temperature	Date
1	100 °F	Jul 30
2	99 °F	Jul 19
3	97 °F	Jul 6
3	97 °F	Jun 28
5	96 °F	Jul 23
5	96 °F	Jul 18
7	95 °F	Aug 25
7	95 °F	Aug 2
7	95 °F	Jul 27
7	95 °F	Jul 17
7	95 °F	Jul 15

What was the coldest temperature in Idaho Falls in 1966?

The lowest temperature recorded in Idaho Falls, Idaho in 1966 was -15 °F which happened 4 different times.

Lowest Temperatures: All-Time By Year

Lowest Temperatures in Idaho Falls in 1966

Rank	Temperature	Date
1	-15 °F	December 30
1	-15 °F	February 15
1	-15 °F	January 25
1	-15 °F	January 24
5	-7 °F	December 27
5	-7 °F	February 10
7	-6 °F	January 2
8	-5 °F	February 3
9	-4 °F	January 21
10	-3 °F	March 4
10	-3 °F	January 20

January 1966 Idaho Falls Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
January 1	18	-1	0.00	0.0
January 2	24	-6	0.00	0.0
January 3	32	23	0.00	0.0
January 4	34	28	0.03	0.3
January 5	38	29	0.00	0.0
January 6	41	35	0.00	0.0
January 7	37	28	0.00	0.0
January 8	39	26	0.00	0.0
January 9	32	21	0.00	0.0
January 10	37	23	0.00	0.0
January 11	33	26	0.00	0.1
January 12	29	25	0.00	0.0
January 13	34	28	0.00	0.0
January 14	37	26	0.00	0.0
January 15	36	19	0.00	0.0
January 16	31	11	0.00	0.0
January 17	30	8	0.00	0.0
January 18	30	4	0.00	0.0
January 19	21	9	0.02	0.0
January 20	16	-3	0.00	0.0
January 21	18	-4	0.00	0.0
January 22	23	6	0.07	2.0
January 23	22	12	0.11	2.0
January 24	23	-15	0.06	1.0
January 25	16	-15	0.00	0.0
January 26	26	6	0.00	0.0
January 27	24	-1	0.00	0.0
January 28	29	3	0.00	0.0
January 29	30	5	0.00	0.0
January 30	32	6	0.00	0.0
January 31	29	18	0.04	1.0

February 1966 Idaho Falls Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
February 1	27	6	0.12	0.5
February 2	25	6	0.00	0.0
February 3	25	-5	0.00	n/a
February 4	30	7	0.00	0.0
February 5	33	18	0.00	0.0
February 6	33	12	0.04	0.2
February 7	27	12	0.00	0.0
February 8	23	2	0.00	0.0
February 9	23	3	0.00	0.0
February 10	26	-7	0.00	0.0
February 11	25	11	0.00	0.0
February 12	25	1	0.09	2.0
February 13	20	3	0.00	0.0
February 14	22	13	0.08	1.1
February 15	17	-15	0.00	0.0
February 16	26	8	0.00	0.0
February 17	32	8	0.00	0.0
February 18	37	18	0.00	0.0
February 19	32	10	0.00	0.0
February 20	33	12	0.00	0.0
February 21	34	10	0.00	0.0
February 22	31	3	0.00	0.0
February 23	34	2	0.00	0.0
February 24	35	6	0.00	0.0
February 25	33	16	0.00	0.0
February 26	35	23	0.01	0.1
February 27	37	23	0.00	0.0
February 28	39	29	0.00	0.0

March 1966 Idaho Falls Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
March 1	34	27	0.00	0.0
March 2	28	10	0.00	0.0
March 3	22	4	0.00	0.0
March 4	25	-3	0.00	0.0
March 5	26	1	0.00	0.0
March 6	36	9	0.00	0.0
March 7	37	28	0.01	0.1
March 8	41	32	0.01	0.0
March 9	51	32	0.00	0.0
March 10	45	32	0.01	0.0
March 11	44	26	0.00	0.0
March 12	51	24	0.00	0.0
March 13	55	30	0.00	0.0
March 14	55	28	0.00	0.0
March 15	53	30	0.00	0.0
March 16	41	28	0.14	0.0
March 17	37	23	0.00	0.0
March 18	44	19	0.00	0.0
March 19	55	26	0.00	0.0
March 20	45	23	0.00	0.0
March 21	36	25	0.00	0.0
March 22	39	21	0.00	0.0
March 23	44	16	0.00	0.0
March 24	54	20	0.00	0.0
March 25	60	24	0.00	0.0
March 26	64	26	0.00	0.0
March 27	65	27	0.00	0.0
March 28	66	27	0.00	0.0
March 29	67	27	0.00	0.0
March 30	69	27	0.00	0.0
March 31	71	42	0.00	0.0

April 1966 Idaho Falls Weather

Day	High (°F)	Low (°F)	Precip. (inches)
April 1	70	32	0.00
April 2	54	32	0.00
April 3	49	24	0.00
April 4	51	20	0.00
April 5	62	20	0.00
April 6	66	27	0.00
April 7	65	32	0.00
April 8	71	28	0.00
April 9	64	40	0.00
April 10	50	38	0.22
April 11	49	36	0.17
April 12	55	31	0.00
April 13	55	28	0.00
April 14	63	25	0.00
April 15	70	31	0.00
April 16	69	35	0.00
April 17	50	26	0.14
April 18	37	24	0.03
April 19	38	20	0.00
April 20	44	18	0.02
April 21	48	31	0.00
April 22	55	25	0.00
April 23	62	30	0.00
April 24	65	27	0.00
April 25	70	38	0.01
April 26	49	26	0.00
April 27	51	26	0.00
April 28	58	24	0.00
April 29	54	25	0.00
April 30	64	24	0.00

May 1966 Idaho Falls Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
May 1	71	24	0.00	0.0
May 2	80	32	0.00	0.0
May 3	85	36	0.00	0.0
May 4	86	38	0.00	0.0
May 5	85	41	0.00	0.0
May 6	85	44	0.00	0.0
May 7	81	49	0.00	0.0
May 8	79	43	0.00	0.0
May 9	69	46	0.37	0.0
May 10	56	43	0.78	0.0
May 11	55	37	0.01	0.0
May 12	59	29	0.00	0.0
May 13	63	43	0.00	0.0
May 14	52	37	0.00	0.0
May 15	65	31	0.00	0.0
May 16	65	43	0.00	0.0
May 17	63	29	0.00	0.0
May 18	62	30	0.00	0.0
May 19	74	34	0.00	0.0
May 20	79	38	0.00	0.0
May 21	78	42	0.00	0.0
May 22	61	29	0.02	0.1
May 23	59	25	0.00	0.0
May 24	72	32	0.00	0.0
May 25	80	37	0.00	0.0
May 26	84	38	0.00	0.0
May 27	88	44	0.00	0.0
May 28	86	50	0.00	0.0
May 29	87	50	0.00	0.0
May 30	85	53	0.00	0.0
May 31	78	50	0.00	0.0

June 1966 Idaho Falls Weather

Day	High (°F)	Low (°F)	Precip. (inches)
June 1	78	42	0.00
June 2	75	44	0.00
June 3	64	42	0.00
June 4	64	41	0.00
June 5	69	35	0.00
June 6	74	37	0.00
June 7	70	51	0.01
June 8	73	46	0.13
June 9	79	43	0.00
June 10	75	50	0.09
June 11	65	42	0.00
June 12	67	39	0.00
June 13	75	34	0.00
June 14	84	49	0.00
June 15	78	46	0.00
June 16	84	49	0.00
June 17	83	52	0.03
June 18	86	46	0.00
June 19	88	48	0.00
June 20	82	57	0.00
June 21	86	58	0.02
June 22	64	51	0.00
June 23	71	39	0.00
June 24	68	39	0.03
June 25	72	32	0.00
June 26	87	38	0.00
June 27	91	44	0.00
June 28	97	49	0.00
June 29	94	59	0.00
June 30	88	56	0.00

July 1966 Idaho Falls Weather

Day	High (°F)	Low (°F)	Precip. (inches)
July 1	87	57	0.74
July 2	83	54	0.00
July 3	77	48	0.00
July 4	85	44	0.00
July 5	88	47	0.00
July 6	97	48	0.00
July 7	94	50	0.00
July 8	92	51	0.00
July 9	88	52	0.00
July 10	91	54	0.00
July 11	92	59	0.02
July 12	92	59	0.00
July 13	92	54	0.00
July 14	92	48	0.00
July 15	95	47	0.00
July 16	93	53	0.00
July 17	95	61	0.00
July 18	96	55	0.00
July 19	99	56	0.00
July 20	91	57	0.00
July 21	89	64	0.00
July 22	93	54	0.00
July 23	96	53	0.00
July 24	94	53	0.00
July 25	87	59	0.00
July 26	91	48	0.00
July 27	95	49	0.00
July 28	92	52	0.00
July 29	92	49	0.00
July 30	100	48	0.00
July 31	78	64	0.35

August 1966 Idaho Falls Weather

Day	High (°F)	Low (°F)	Precip. (inches)
August 1	87	59	0.00
August 2	95	58	0.00
August 3	75	56	0.00
August 4	84	49	0.12
August 5	90	51	0.00
August 6	87	50	0.00
August 7	85	47	0.00
August 8	88	50	0.00
August 9	85	54	0.00
August 10	87	52	0.00
August 11	83	54	0.00
August 12	80	45	0.00
August 13	85	45	0.00
August 14	83	46	0.00
August 15	88	50	0.00
August 16	94	47	0.00
August 17	94	50	0.00
August 18	88	58	0.00
August 19	83	54	0.23
August 20	71	46	0.00
August 21	72	38	0.00
August 22	84	37	0.00
August 23	88	40	0.00
August 24	91	41	0.00
August 25	95	44	0.00
August 26	84	55	0.05
August 27	74	48	0.00
August 28	87	42	0.00
August 29	89	48	0.00
August 30	79	48	0.00
August 31	74	49	0.00

September 1966 Idaho Falls Weather

Day	High (°F)	Low (°F)	Precip. (inches)
September 1	61	52	0.36
September 2	71	51	0.12
September 3	79	45	0.00
September 4	84	45	0.00
September 5	87	46	0.00
September 6	89	47	0.00
September 7	89	49	0.00
September 8	87	51	0.00
September 9	90	43	0.00
September 10	88	47	0.00
September 11	82	53	0.00
September 12	80	47	0.00
September 13	80	40	0.14
September 14	52	41	0.25
September 15	49	43	0.10
September 16	66	36	0.00
September 17	77	40	0.00
September 18	86	42	0.00
September 19	84	46	0.00
September 20	83	47	0.00
September 21	86	48	0.00
September 22	87	48	0.00
September 23	87	48	0.00
September 24	85	43	0.00
September 25	73	45	0.00
September 26	62	45	0.00
September 27	68	40	0.00
September 28	71	42	0.00
September 29	75	42	0.00
September 30	63	34	0.00

October 1966 Idaho Falls Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
October 1	73	28	0.00	0.0
October 2	60	35	0.25	0.0
October 3	53	31	0.00	0.0
October 4	61	27	0.00	0.0
October 5	70	31	0.00	0.0
October 6	71	32	0.00	0.0
October 7	71	34	0.00	0.0
October 8	69	41	0.00	0.0
October 9	61	32	0.00	0.0
October 10	68	25	0.00	0.0
October 11	70	27	0.00	0.0
October 12	54	35	0.00	0.0
October 13	40	26	0.11	1.1
October 14	44	17	0.00	0.0
October 15	49	16	0.00	0.0
October 16	52	17	0.00	0.0
October 17	57	27	0.00	0.0
October 18	50	18	0.00	0.0
October 19	66	19	0.00	0.0
October 20	62	39	0.00	0.0
October 21	49	29	0.00	0.0
October 22	41	25	0.00	0.0
October 23	55	31	0.00	0.0
October 24	59	28	0.00	0.0
October 25	66	27	0.00	0.0
October 26	67	25	0.00	0.0
October 27	65	33	0.00	0.0
October 28	63	25	0.00	0.0
October 29	62	23	0.00	0.0
October 30	62	28	0.00	0.0
October 31	59	32	0.00	0.0

November 1966 Idaho Falls Weather

Day	High (°F)	Low (°F)	Precip. (inches)
November 1	55	21	0.00
November 2	51	20	0.00
November 3	53	12	0.00
November 4	50	17	0.00
November 5	55	33	0.00
November 6	47	40	0.10
November 7	42	35	0.00
November 8	37	15	0.00
November 9	32	13	0.00
November 10	38	29	0.02
November 11	39	29	0.02
November 12	47	35	0.00
November 13	58	31	0.00
November 14	60	30	0.00
November 15	48	30	0.04
November 16	50	31	0.04
November 17	48	24	0.00
November 18	53	23	0.00
November 19	56	25	0.00
November 20	62	27	0.00
November 21	50	24	0.01
November 22	43	23	0.00
November 23	33	24	0.00
November 24	31	22	0.00
November 25	39	19	0.00
November 26	37	22	0.00
November 27	42	21	0.00
November 28	46	22	0.00
November 29	42	35	0.06
November 30	45	35	0.00

December 1966 Idaho Falls Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
December 1	43	32	0.00	0.0
December 2	42	34	0.14	0.0
December 3	44	32	0.19	0.0
December 4	45	25	0.00	0.0
December 5	38	29	0.28	0.0
December 6	34	20	0.04	1.0
December 7	32	27	0.00	0.0
December 8	30	13	0.00	0.0
December 9	24	11	0.00	0.0
December 10	25	15	0.01	0.0
December 11	29	19	0.00	0.0
December 12	37	14	0.00	0.0
December 13	35	19	0.00	0.0
December 14	34	22	0.07	0.0
December 15	31	17	0.00	0.0
December 16	31	11	0.00	0.0
December 17	31	13	0.00	0.0
December 18	33	12	0.00	0.0
December 19	32	14	0.00	0.0
December 20	31	10	0.00	0.0
December 21	29	4	0.01	0.0
December 22	18	-2	0.00	0.0
December 23	24	1	0.00	0.0
December 24	23	1	0.00	0.0
December 25	22	3	0.02	1.0
December 26	27	0	0.00	0.0
December 27	16	-7	0.01	0.1
December 28	15	8	0.01	0.0
December 29	16	13	0.10	4.0
December 30	21	-15	0.02	1.0
December 31	23	14	0.00	0.0

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Weather Station Details

Years	Station	Coordinates
1948–2024	Idaho Falls Fanning Field	location