Great Falls Weather in 1966

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

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1966 Great Falls Weather Extremes
Highest temperature	97 °F	August 2
Lowest temperature	-23 °F	January 20
Highest daily low	64 °F	July 31
Lowest daily high	-11 °F	January 5
Most daily precipitation	1.0 inches	May 10
Most daily snow	7.2 inches	January 3
Total annual precipitation	14.1 inches	-
Total annual snow	64.8 inches	-

What was the hottest temperature in Great Falls in 1966?

The highest temperature recorded in Great Falls, Montana in 1966 was 97 °F which happened on August 2.

Highest Temperatures: All-Time By Year

Highest Temperatures in Great Falls in 1966

Rank	Temperature	Date
1	97 °F	Aug 2
2	96 °F	Jul 19
3	95 °F	Aug 3
3	95 °F	Jul 30
3	95 °F	Jul 16
3	95 °F	Jun 28
7	94 °F	Aug 16
8	93 °F	Sep 23
8	93 °F	Aug 25
10	92 °F	Sep 18
10	92 °F	Aug 1
10	92 °F	Jul 29

What was the coldest temperature in Great Falls in 1966?

The lowest temperature recorded in Great Falls, Montana in 1966 was -23 °F which happened on Jan 20.

Lowest Temperatures: All-Time By Year

Lowest Temperatures in Great Falls in 1966

Rank	Temperature	Date
1	-23 °F	January 20
2	-20 °F	January 4
3	-17 °F	January 5
4	-16 °F	January 3
5	-14 °F	December 9
5	-14 °F	January 19
7	-13 °F	March 4
7	-13 °F	January 6
9	-12 °F	January 24
10	-11 °F	December 8
10	-11 °F	November 11

January 1966 Great Falls Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
January 1	28	18	0.00	0.0
January 2	35	-9	0.21	2.1
January 3	-9	-16	0.62	7.2
January 4	-11	-20	0.10	1.0
January 5	-11	-17	0.04	0.4
January 6	41	-13	0.05	0.3
January 7	44	36	0.00	0.0
January 8	47	29	0.00	0.0
January 9	33	14	0.00	0.0
January 10	41	30	0.00	0.0
January 11	40	26	0.00	0.0
January 12	40	27	0.00	0.0
January 13	45	37	0.00	0.0
January 14	43	32	0.03	0.2
January 15	33	15	0.24	2.4
January 16	32	7	0.00	0.0
January 17	39	26	0.00	0.0
January 18	36	3	0.05	0.5
January 19	3	-14	0.06	0.6
January 20	16	-23	0.00	0.0
January 21	20	0	0.00	0.0
January 22	3	-1	0.11	1.0
January 23	3	-5	0.07	0.7
January 24	9	-12	0.03	0.3
January 25	31	-1	0.00	0.0
January 26	-1	-8	0.00	0.0
January 27	-5	-10	0.01	0.1
January 28	0	-9	0.01	0.1
January 29	20	-3	0.00	0.0
January 30	26	8	0.00	0.0
January 31	30	11	0.00	0.0

February 1966 Great Falls Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
February 1	35	20	0.01	0.1
February 2	28	17	0.00	0.0
February 3	37	8	0.00	0.0
February 4	44	31	0.00	0.0
February 5	44	35	0.00	0.0
February 6	40	29	0.00	0.0
February 7	37	21	0.04	0.5
February 8	36	25	0.00	0.0
February 9	34	23	0.00	0.0
February 10	34	19	0.00	0.0
February 11	39	19	0.04	0.6
February 12	27	13	0.15	1.5
February 13	29	16	0.04	0.4
February 14	18	-1	0.10	1.0
February 15	21	-10	0.01	0.1
February 16	38	16	0.00	0.0
February 17	38	1	0.00	0.0
February 18	12	-3	0.00	0.0
February 19	11	-4	0.00	0.0
February 20	43	2	0.00	0.0
February 21	45	28	0.00	0.0
February 22	49	32	0.00	0.0
February 23	51	33	0.00	0.0
February 24	48	31	0.00	0.0
February 25	40	26	0.00	0.0
February 26	46	30	0.00	0.0
February 27	43	31	0.00	0.0
February 28	35	23	0.12	1.6

March 1966 Great Falls Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
March 1	32	17	0.04	0.4
March 2	17	8	0.42	4.2
March 3	10	-7	0.07	0.7
March 4	19	-13	0.00	0.0
March 5	32	-2	0.00	0.0
March 6	42	20	0.00	0.0
March 7	42	30	0.00	0.0
March 8	49	30	0.00	0.0
March 9	56	40	0.00	0.0
March 10	50	33	0.00	0.0
March 11	52	34	0.00	0.0
March 12	57	35	0.00	0.0
March 13	55	38	0.00	0.0
March 14	60	37	0.02	0.0
March 15	54	34	0.00	0.0
March 16	49	29	0.09	0.9
March 17	41	27	0.00	0.0
March 18	51	23	0.00	0.0
March 19	60	30	0.00	0.0
March 20	42	21	0.00	0.0
March 21	28	17	0.14	1.4
March 22	30	4	0.01	0.1
March 23	46	16	0.00	0.0
March 24	58	30	0.00	0.0
March 25	52	23	0.00	0.0
March 26	65	28	0.00	0.0
March 27	71	33	0.00	0.0
March 28	69	32	0.00	0.0
March 29	72	40	0.00	0.0
March 30	71	46	0.00	0.0
March 31	58	34	0.00	0.0

April 1966 Great Falls Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
April 1	70	33	0.00	0.0
April 2	47	32	0.01	0.1
April 3	41	27	0.10	1.0
April 4	50	25	0.00	0.0
April 5	63	30	0.00	0.0
April 6	62	33	0.00	0.0
April 7	42	30	0.08	0.8
April 8	52	32	0.00	0.0
April 9	58	42	0.00	0.0
April 10	60	39	0.00	0.0
April 11	60	31	0.00	0.0
April 12	61	36	0.00	0.0
April 13	53	27	0.00	0.0
April 14	63	36	0.00	0.0
April 15	61	41	0.00	0.0
April 16	44	27	0.17	1.7
April 17	32	23	0.00	0.0
April 18	27	18	0.00	0.0
April 19	33	15	0.00	0.0
April 20	47	24	0.00	0.0
April 21	54	29	0.00	0.0
April 22	59	31	0.00	0.0
April 23	61	39	0.00	0.0
April 24	63	38	0.00	0.0
April 25	68	38	0.00	0.0
April 26	46	25	0.30	1.6
April 27	31	22	0.03	0.3
April 28	26	16	0.05	0.5
April 29	39	15	0.00	0.0
April 30	59	25	0.00	0.0

May 1966 Great Falls Weather

Day	High (°F)	Low (°F)	Precip. (inches)
May 1	65	39	0.00
May 2	70	34	0.00
May 3	84	40	0.00
May 4	85	51	0.00
May 5	83	41	0.00
May 6	87	45	0.00
May 7	71	43	0.00
May 8	69	40	0.00
May 9	73	41	0.00
May 10	63	43	0.97
May 11	43	32	0.00
May 12	45	29	0.01
May 13	56	36	0.00
May 14	51	39	0.01
May 15	57	35	0.00
May 16	56	40	0.00
May 17	53	35	0.00
May 18	58	35	0.00
May 19	68	40	0.00
May 20	76	50	0.00
May 21	77	56	0.00
May 22	56	40	0.00
May 23	64	36	0.00
May 24	77	41	0.00
May 25	82	42	0.00
May 26	88	46	0.00
May 27	87	56	0.00
May 28	80	56	0.20
May 29	84	52	0.27
May 30	75	52	0.00
May 31	60	50	0.08

June 1966 Great Falls Weather

Day	High (°F)	Low (°F)	Precip. (inches)
June 1	62	46	0.00
June 2	51	41	0.43
June 3	57	40	0.52
June 4	53	44	0.06
June 5	54	44	0.02
June 6	66	41	0.00
June 7	71	49	0.00
June 8	74	51	0.00
June 9	78	56	0.03
June 10	71	54	0.00
June 11	64	48	0.00
June 12	64	44	0.00
June 13	70	42	0.01
June 14	75	51	0.00
June 15	67	44	0.00
June 16	76	41	0.00
June 17	87	56	0.00
June 18	81	56	0.00
June 19	83	50	0.07
June 20	74	50	0.08
June 21	77	51	0.04
June 22	70	49	0.13
June 23	72	47	0.00
June 24	56	43	0.62
June 25	70	43	0.11
June 26	82	49	0.00
June 27	87	52	0.00
June 28	95	53	0.00
June 29	81	60	0.00
June 30	75	53	0.05

July 1966 Great Falls Weather

Day	High (°F)	Low (°F)	Precip. (inches)
July 1	83	55	0.13
July 2	84	51	0.77
July 3	73	50	0.04
July 4	75	51	0.00
July 5	78	52	0.00
July 6	87	55	0.00
July 7	91	55	0.02
July 8	89	64	0.00
July 9	91	59	0.00
July 10	88	59	0.02
July 11	88	54	0.00
July 12	81	53	0.79
July 13	70	55	0.00
July 14	85	54	0.04
July 15	89	53	0.00
July 16	95	59	0.00
July 17	90	60	0.00
July 18	87	57	0.00
July 19	96	56	0.00
July 20	87	57	0.00
July 21	81	54	0.00
July 22	84	46	0.00
July 23	91	53	0.00
July 24	82	54	0.00
July 25	85	56	0.00
July 26	84	46	0.00
July 27	84	47	0.00
July 28	86	51	0.00
July 29	92	51	0.00
July 30	95	50	0.00
July 31	90	64	0.00

August 1966 Great Falls Weather

Day	High (°F)	Low (°F)	Precip. (inches)
August 1	92	54	0.00
August 2	97	55	0.00
August 3	95	53	0.00
August 4	89	55	0.04
August 5	86	60	0.00
August 6	75	54	0.00
August 7	73	51	0.00
August 8	79	50	0.00
August 9	84	52	0.00
August 10	88	58	0.00
August 11	71	50	0.00
August 12	79	38	0.00
August 13	77	47	0.00
August 14	81	53	0.00
August 15	90	54	0.00
August 16	94	55	0.00
August 17	80	44	0.00
August 18	80	50	0.00
August 19	60	47	0.00
August 20	51	45	0.44
August 21	65	40	0.00
August 22	70	44	0.00
August 23	76	41	0.00
August 24	89	48	0.00
August 25	93	49	0.00
August 26	88	54	0.18
August 27	71	56	0.00
August 28	81	54	0.00
August 29	80	46	0.01
August 30	72	50	0.10
August 31	73	46	0.00

September 1966 Great Falls Weather

Day	High (°F)	Low (°F)	Precip. (inches)
September 1	77	40	0.00
September 2	79	45	0.00
September 3	81	48	0.00
September 4	88	50	0.00
September 5	90	50	0.00
September 6	91	58	0.00
September 7	91	57	0.00
September 8	84	61	0.03
September 9	88	53	0.00
September 10	91	55	0.00
September 11	78	57	0.01
September 12	63	54	0.00
September 13	69	54	0.01
September 14	74	51	0.00
September 15	61	49	0.01
September 16	76	47	0.00
September 17	83	48	0.00
September 18	92	62	0.00
September 19	75	52	0.00
September 20	85	57	0.00
September 21	88	51	0.00
September 22	85	48	0.00
September 23	93	52	0.00
September 24	64	51	0.00
September 25	67	42	0.00
September 26	64	47	0.06
September 27	70	46	0.00
September 28	76	54	0.00
September 29	61	34	0.09
September 30	63	32	0.00

October 1966 Great Falls Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
October 1	71	45	0.04	0.0
October 2	46	34	0.64	0.0
October 3	56	31	0.00	0.0
October 4	65	41	0.00	0.0
October 5	76	49	0.00	0.0
October 6	79	50	0.00	0.0
October 7	69	51	0.00	0.0
October 8	64	37	0.00	0.0
October 9	62	32	0.00	0.0
October 10	68	36	0.00	0.0
October 11	67	39	0.00	0.0
October 12	46	32	0.57	3.0
October 13	32	25	0.06	0.4
October 14	45	24	0.00	0.0
October 15	47	29	0.00	0.0
October 16	54	29	0.00	0.0
October 17	50	30	0.00	0.0
October 18	50	27	0.00	0.0
October 19	68	47	0.00	0.0
October 20	62	33	0.00	0.0
October 21	43	27	0.01	0.0
October 22	44	27	0.00	0.0
October 23	59	40	0.00	0.0
October 24	64	51	0.00	0.0
October 25	74	48	0.00	0.0
October 26	73	50	0.00	0.0
October 27	55	34	0.00	0.0
October 28	43	30	0.00	0.0
October 29	64	39	0.00	0.0
October 30	59	44	0.00	0.0
October 31	48	24	0.00	0.0

November 1966 Great Falls Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
November 1	55	20	0.00	0.0
November 2	55	29	0.00	0.0
November 3	43	21	0.00	0.0
November 4	43	24	0.12	1.5
November 5	54	22	0.06	0.6
November 6	22	2	0.30	3.0
November 7	12	-3	0.14	1.4
November 8	19	3	0.04	0.4
November 9	37	19	0.00	0.0
November 10	35	2	0.36	3.7
November 11	18	-11	0.00	0.0
November 12	44	12	0.00	0.0
November 13	37	25	0.00	0.0
November 14	58	24	0.00	0.0
November 15	60	35	0.00	0.0
November 16	38	12	0.07	0.7
November 17	19	7	0.00	0.0
November 18	52	11	0.00	0.0
November 19	58	38	0.00	0.0
November 20	63	37	0.00	0.0
November 21	48	34	0.10	0.0
November 22	36	18	0.00	0.0
November 23	41	16	0.00	0.0
November 24	42	30	0.00	0.0
November 25	51	30	0.00	0.0
November 26	34	18	0.12	1.4
November 27	47	25	0.00	0.0
November 28	52	28	0.06	0.0
November 29	28	5	0.08	0.8
November 30	5	1	0.17	1.7

December 1966 Great Falls Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
December 1	9	3	0.29	2.8
December 2	10	-2	0.00	0.0
December 3	19	4	0.16	1.6
December 4	40	4	0.00	0.0
December 5	40	8	0.00	0.0
December 6	35	0	0.00	0.0
December 7	34	5	0.00	0.0
December 8	5	-11	0.25	2.5
December 9	24	-14	0.00	0.0
December 10	38	22	0.00	0.0
December 11	42	34	0.00	0.0
December 12	46	38	0.00	0.0
December 13	53	40	0.00	0.0
December 14	46	32	0.00	0.0
December 15	47	30	0.00	0.0
December 16	57	38	0.00	0.0
December 17	53	40	0.00	0.0
December 18	52	45	0.00	0.0
December 19	50	44	0.00	0.0
December 20	48	36	0.00	0.0
December 21	36	28	0.12	1.2
December 22	34	20	0.00	0.0
December 23	40	23	0.00	0.0
December 24	39	24	0.00	0.0
December 25	27	16	0.00	0.0
December 26	24	17	0.15	1.5
December 27	29	10	0.01	0.1
December 28	29	17	0.00	0.0
December 29	36	24	0.01	0.1
December 30	34	18	0.00	0.0
December 31	40	22	0.00	0.0

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Weather Station Details

Years	Station	Coordinates
1937–2024	Great Falls International Airport	location
1892–1937	Great Falls 16th Street	location