Great Falls Weather in 1991

Historical record of Great Falls, Montana weather for the year 1991 based on NOAA data.

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1991 Great Falls Weather Extremes
Highest temperature	99 °F	August 10
Lowest temperature	-16 °F	November 2
Highest daily low	63 °F	August 9
Lowest daily high	-2 °F	January 6
Most daily precipitation	1.9 inches	June 20
Most daily snow	9.9 inches	March 17
Total annual precipitation	14.0 inches	-
Total annual snow	67.4 inches	-

What was the hottest temperature in Great Falls in 1991?

The highest temperature recorded in Great Falls, Montana in 1991 was 99 °F which happened on August 10.

Highest Temperatures: All-Time By Year

Highest Temperatures in Great Falls in 1991

Rank	Temperature	Date
1	99 °F	Aug 10
2	98 °F	Aug 31
2	98 °F	Aug 8
4	97 °F	Aug 9
5	96 °F	Aug 7
6	94 °F	Aug 30
6	94 °F	Aug 21
6	94 °F	Jul 29
6	94 °F	Jul 13
10	93 °F	Aug 23

What was the coldest temperature in Great Falls in 1991?

The lowest temperature recorded in Great Falls, Montana in 1991 was -16 °F which happened on Nov 2.

Lowest Temperatures: All-Time By Year

Lowest Temperatures in Great Falls in 1991

Rank	Temperature	Date
1	-16 °F	November 2
2	-15 °F	January 6
3	-12 °F	November 1
3	-12 °F	January 9
3	-12 °F	January 4
6	-11 °F	October 30
6	-11 °F	January 28
6	-11 °F	January 8
9	-10 °F	January 3
10	-9 °F	January 5
10	-9 °F	January 2

January 1991 Great Falls Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
January 1	0	-4	0.09	1.9
January 2	4	-9	0.01	0.1
January 3	8	-10	0.00	0.0
January 4	11	-12	0.00	0.0
January 5	4	-9	0.00	0.1
January 6	-2	-15	0.00	0.0
January 7	4	-5	0.02	0.4
January 8	1	-11	0.00	0.0
January 9	25	-12	0.00	0.0
January 10	37	25	0.00	0.0
January 11	43	24	0.00	0.0
January 12	49	39	0.00	0.0
January 13	46	32	0.00	0.0
January 14	46	31	0.00	0.0
January 15	45	31	0.00	0.0
January 16	44	26	0.00	0.0
January 17	50	34	0.00	0.0
January 18	52	20	0.13	1.5
January 19	28	12	0.09	1.2
January 20	32	9	0.00	0.0
January 21	36	20	0.00	0.0
January 22	36	23	0.01	0.1
January 23	30	8	0.00	0.0
January 24	31	11	0.14	2.1
January 25	17	2	0.00	0.1
January 26	28	8	0.00	0.0
January 27	32	15	0.07	0.8
January 28	15	-11	0.07	0.9
January 29	23	-6	0.00	0.0
January 30	37	16	0.00	0.0
January 31	48	34	0.00	0.0

February 1991 Great Falls Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
February 1	52	40	0.00	0.0
February 2	60	43	0.00	0.0
February 3	53	42	0.00	0.0
February 4	57	40	0.00	0.0
February 5	55	29	0.00	0.0
February 6	54	27	0.00	0.0
February 7	58	39	0.00	0.0
February 8	55	36	0.00	0.0
February 9	55	27	0.00	0.0
February 10	58	26	0.00	0.0
February 11	59	30	0.00	0.0
February 12	50	37	0.00	0.0
February 13	48	30	0.00	0.0
February 14	40	27	0.00	0.0
February 15	52	30	0.00	0.0
February 16	48	32	0.04	0.0
February 17	48	23	0.00	0.0
February 18	43	18	0.00	0.0
February 19	52	27	0.00	0.0
February 20	54	35	0.00	0.0
February 21	49	26	0.00	0.0
February 22	55	21	0.01	0.1
February 23	44	15	0.02	0.2
February 24	42	16	0.00	0.0
February 25	46	25	0.00	0.0
February 26	49	14	0.00	0.0
February 27	40	28	0.01	0.1
February 28	34	1	0.13	2.7

March 1991 Great Falls Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
March 1	3	-2	0.11	2.2
March 2	44	-1	0.01	0.1
March 3	51	35	0.00	0.0
March 4	61	10	0.03	0.2
March 5	36	9	0.01	0.2
March 6	34	19	0.00	0.0
March 7	42	20	0.00	0.0
March 8	46	19	0.00	0.0
March 9	55	30	0.00	0.0
March 10	57	31	0.00	0.0
March 11	43	26	0.00	0.0
March 12	48	25	0.00	0.0
March 13	45	29	0.00	0.0
March 14	50	29	0.02	0.8
March 15	48	26	0.00	0.0
March 16	45	31	0.01	0.2
March 17	39	29	0.51	9.9
March 18	53	29	0.00	0.0
March 19	61	34	0.00	0.0
March 20	59	31	0.00	0.0
March 21	56	30	0.02	0.0
March 22	52	30	0.24	0.2
March 23	46	27	0.00	0.0
March 24	43	32	0.02	0.0
March 25	35	15	0.11	2.7
March 26	24	12	0.06	5.3
March 27	41	10	0.00	0.0
March 28	49	28	0.01	0.3
March 29	48	26	0.05	1.8
March 30	58	32	0.00	0.0
March 31	66	31	0.00	0.0

April 1991 Great Falls Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
April 1	70	39	0.00	0.0
April 2	63	36	0.00	0.0
April 3	57	38	0.00	0.0
April 4	68	48	0.00	0.0
April 5	67	45	0.00	0.0
April 6	53	28	0.00	0.0
April 7	49	20	0.00	0.0
April 8	49	28	0.04	0.6
April 9	54	30	0.00	0.0
April 10	48	30	0.02	0.4
April 11	36	32	0.75	4.0
April 12	47	26	0.00	0.0
April 13	44	28	0.00	0.0
April 14	51	30	0.00	0.0
April 15	50	23	0.00	0.0
April 16	39	32	0.24	0.4
April 17	40	34	0.23	0.1
April 18	44	36	0.03	0.0
April 19	56	36	0.00	0.0
April 20	63	29	0.00	0.0
April 21	65	32	0.00	0.0
April 22	69	34	0.00	0.0
April 23	70	39	0.00	0.0
April 24	65	40	0.00	0.0
April 25	45	31	0.00	0.0
April 26	53	31	0.00	0.0
April 27	43	32	0.10	0.3
April 28	52	34	0.06	0.2
April 29	45	32	0.06	0.0
April 30	51	27	0.01	0.0

May 1991 Great Falls Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
May 1	49	27	0.00	0.0
May 2	43	26	0.04	0.5
May 3	37	30	0.25	3.3
May 4	44	31	0.06	0.2
May 5	63	32	0.00	0.0
May 6	65	42	0.00	0.0
May 7	64	41	0.00	0.0
May 8	70	45	0.08	0.0
May 9	54	40	0.00	0.0
May 10	58	39	0.00	0.0
May 11	51	44	0.48	0.0
May 12	59	44	0.00	0.0
May 13	65	48	0.00	0.0
May 14	62	37	0.00	0.0
May 15	65	47	0.00	0.0
May 16	72	44	0.00	0.0
May 17	71	50	0.00	0.0
May 18	66	49	0.39	0.0
May 19	72	46	0.00	0.0
May 20	71	43	0.09	0.0
May 21	70	39	0.00	0.0
May 22	71	38	0.00	0.0
May 23	68	40	0.00	0.0
May 24	73	46	0.00	0.0
May 25	58	39	0.10	0.0
May 26	61	36	0.00	0.0
May 27	62	34	0.05	0.0
May 28	59	36	0.00	0.0
May 29	72	39	0.00	0.0
May 30	66	44	0.00	0.0
May 31	73	45	0.00	0.0

June 1991 Great Falls Weather

Day	High (°F)	Low (°F)	Precip. (inches)
June 1	78	44	0.00
June 2	79	43	0.00
June 3	81	50	0.00
June 4	66	48	0.13
June 5	51	48	0.77
June 6	59	47	0.00
June 7	68	50	0.02
June 8	69	47	0.00
June 9	73	45	0.00
June 10	83	46	0.00
June 11	81	47	0.01
June 12	73	41	0.00
June 13	68	38	0.00
June 14	61	40	0.00
June 15	73	38	0.00
June 16	70	49	0.00
June 17	67	41	0.00
June 18	74	36	0.00
June 19	61	45	0.46
June 20	67	47	1.91
June 21	72	45	0.00
June 22	69	50	0.36
June 23	71	44	0.00
June 24	65	48	0.19
June 25	66	47	0.18
June 26	71	47	0.00
June 27	72	46	0.00
June 28	71	53	0.01
June 29	75	48	0.05
June 30	69	50	0.06

July 1991 Great Falls Weather

Day	High (°F)	Low (°F)	Precip. (inches)
July 1	73	50	0.00
July 2	79	51	0.00
July 3	87	52	0.00
July 4	89	56	0.00
July 5	84	50	0.00
July 6	80	50	0.00
July 7	69	47	0.00
July 8	80	45	0.00
July 9	85	49	0.03
July 10	75	50	0.53
July 11	77	49	0.00
July 12	87	52	0.00
July 13	94	56	0.00
July 14	82	58	0.01
July 15	89	54	0.00
July 16	92	55	0.05
July 17	85	54	0.00
July 18	77	49	0.00
July 19	83	44	0.00
July 20	89	46	0.00
July 21	85	53	0.00
July 22	81	55	0.00
July 23	83	52	0.00
July 24	86	55	0.00
July 25	85	56	0.13
July 26	84	53	0.00
July 27	87	50	0.00
July 28	90	54	0.00
July 29	94	54	0.00
July 30	89	53	0.00
July 31	89	53	0.00

August 1991 Great Falls Weather

Day	High (°F)	Low (°F)	Precip. (inches)
August 1	75	55	0.20
August 2	74	47	0.00
August 3	84	50	0.00
August 4	88	52	0.00
August 5	90	54	0.00
August 6	89	61	0.01
August 7	96	52	0.00
August 8	98	58	0.00
August 9	97	63	0.00
August 10	99	62	0.02
August 11	87	54	0.55
August 12	81	60	0.00
August 13	85	56	0.00
August 14	79	52	0.05
August 15	78	49	0.00
August 16	83	51	0.00
August 17	87	52	0.00
August 18	91	54	0.00
August 19	91	58	0.00
August 20	92	61	0.00
August 21	94	60	0.00
August 22	91	57	0.00
August 23	93	57	0.00
August 24	91	53	0.00
August 25	80	56	0.00
August 26	88	52	0.00
August 27	86	58	0.47
August 28	79	57	0.05
August 29	86	57	0.00
August 30	94	51	0.00
August 31	98	57	0.00

September 1991 Great Falls Weather

Day	High (°F)	Low (°F)	Precip. (inches)
September 1	89	62	0.00
September 2	78	48	0.00
September 3	76	41	0.00
September 4	80	42	0.00
September 5	79	38	0.00
September 6	91	46	0.00
September 7	82	56	0.00
September 8	59	45	0.44
September 9	53	43	0.01
September 10	72	44	0.00
September 11	72	48	0.00
September 12	77	53	0.00
September 13	76	48	0.08
September 14	51	41	0.20
September 15	68	41	0.05
September 16	65	47	0.10
September 17	53	41	0.01
September 18	65	29	0.00
September 19	78	35	0.00
September 20	82	46	0.02
September 21	49	39	0.08
September 22	61	33	0.00
September 23	63	44	0.00
September 24	80	46	0.00
September 25	78	41	0.00
September 26	78	38	0.00
September 27	79	42	0.00
September 28	79	44	0.00
September 29	65	46	0.01
September 30	78	37	0.00

October 1991 Great Falls Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
October 1	80	46	0.00	0.0
October 2	66	36	0.00	0.0
October 3	46	31	0.23	2.2
October 4	50	29	0.00	0.0
October 5	63	26	0.00	0.0
October 6	78	45	0.00	0.0
October 7	73	42	0.00	0.0
October 8	65	34	0.00	0.0
October 9	76	39	0.00	0.0
October 10	84	57	0.00	0.0
October 11	85	55	0.00	0.0
October 12	79	45	0.00	0.0
October 13	58	35	0.00	0.0
October 14	77	41	0.00	0.0
October 15	80	53	0.00	0.0
October 16	78	49	0.00	0.0
October 17	49	22	0.02	0.4
October 18	53	18	0.00	0.0
October 19	58	32	0.00	0.0
October 20	68	37	0.00	0.0
October 21	69	31	0.00	0.0
October 22	31	19	0.00	0.0
October 23	44	12	0.04	1.2
October 24	47	30	0.00	0.0
October 25	45	24	0.01	0.1
October 26	24	18	0.41	4.5
October 27	18	5	0.04	1.6
October 28	13	-2	0.01	0.2
October 29	13	-5	0.00	0.0
October 30	27	-11	0.00	0.0
October 31	32	5	0.05	1.0

November 1991 Great Falls Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
November 1	8	-12	0.01	0.1
November 2	16	-16	0.00	0.0
November 3	33	11	0.00	0.0
November 4	48	32	0.02	0.0
November 5	41	14	0.36	4.5
November 6	23	10	0.01	0.1
November 7	47	9	0.00	0.0
November 8	58	43	0.04	0.0
November 9	46	26	0.11	0.4
November 10	54	31	0.00	0.0
November 11	57	31	0.00	0.0
November 12	55	39	0.00	0.0
November 13	50	29	0.00	0.0
November 14	43	20	0.00	0.0
November 15	46	18	0.00	0.0
November 16	53	33	0.00	0.0
November 17	51	30	0.00	0.0
November 18	47	29	0.00	0.0
November 19	48	28	0.00	0.0
November 20	53	33	0.00	0.0
November 21	38	27	0.07	1.1
November 22	34	17	0.01	0.1
November 23	37	17	0.00	0.0
November 24	49	32	0.00	0.0
November 25	53	30	0.00	0.0
November 26	45	27	0.00	0.0
November 27	32	21	0.00	0.0
November 28	39	22	0.10	1.8
November 29	27	8	0.04	1.0
November 30	24	7	0.00	0.0

December 1991 Great Falls Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
December 1	37	17	0.00	0.0
December 2	35	8	0.06	0.9
December 3	41	8	0.00	0.0
December 4	46	36	0.00	0.0
December 5	51	37	0.00	0.0
December 6	50	39	0.00	0.0
December 7	45	29	0.00	0.0
December 8	42	25	0.00	0.0
December 9	49	32	0.02	0.0
December 10	38	26	0.00	0.0
December 11	44	27	0.00	0.0
December 12	46	20	0.00	0.0
December 13	33	18	0.00	0.0
December 14	40	21	0.00	0.0
December 15	44	29	0.00	0.0
December 16	44	23	0.00	0.0
December 17	38	12	0.00	0.0
December 18	52	23	0.00	0.0
December 19	43	23	0.00	0.0
December 20	39	23	0.00	0.0
December 21	48	36	0.00	0.0
December 22	45	29	0.00	0.0
December 23	48	29	0.00	0.0
December 24	48	32	0.00	0.0
December 25	47	28	0.00	0.0
December 26	50	30	0.00	0.0
December 27	52	28	0.00	0.0
December 28	49	26	0.00	0.0
December 29	46	26	0.00	0.0
December 30	44	26	0.00	0.0
December 31	43	23	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