Helena Weather in 1991

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

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1991 Helena Weather Extremes
Highest temperature	98 °F	August 10
Lowest temperature	-19 °F	January 29
Highest daily low	64 °F	September 1
Lowest daily high	3 °F	January 6
Most daily precipitation	0.9 inches	September 11
Most daily snow	9.8 inches	December 13
Total annual precipitation	11.9 inches	-
Total annual snow	57.2 inches	-

What was the hottest temperature in Helena in 1991?

The highest temperature recorded in Helena, Montana in 1991 was 98 °F which happened on August 10.

Highest Temperatures: All-Time By Year

Highest Temperatures in Helena in 1991

Rank	Temperature	Date
1	98 °F	Aug 10
2	97 °F	Aug 8
3	96 °F	Aug 31
3	96 °F	Jul 29
5	95 °F	Aug 21
5	95 °F	Jul 13
7	94 °F	Aug 23
7	94 °F	Aug 22
7	94 °F	Aug 9
7	94 °F	Aug 7

What was the coldest temperature in Helena in 1991?

The lowest temperature recorded in Helena, Montana in 1991 was -19 °F which happened on Jan 29.

Lowest Temperatures: All-Time By Year

Lowest Temperatures in Helena in 1991

Rank	Temperature	Date
1	-19 °F	January 29
2	-17 °F	January 28
3	-15 °F	January 6
4	-13 °F	November 2
5	-9 °F	November 30
5	-9 °F	November 1
7	-8 °F	November 3
7	-8 °F	October 30
7	-8 °F	January 5
10	-7 °F	March 2
10	-7 °F	January 4

January 1991 Helena Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
January 1	35	4	0.01	0.3
January 2	16	3	0.00	0.0
January 3	12	-1	0.00	0.1
January 4	10	-7	0.00	0.1
January 5	10	-8	0.01	0.3
January 6	3	-15	0.00	0.0
January 7	16	-5	0.01	0.1
January 8	13	2	0.00	0.0
January 9	23	5	0.00	0.0
January 10	30	6	0.00	0.0
January 11	36	17	0.00	0.0
January 12	50	24	0.00	0.0
January 13	45	36	0.00	0.0
January 14	43	33	0.00	0.0
January 15	45	31	0.04	0.3
January 16	39	33	0.00	0.0
January 17	47	36	0.00	0.0
January 18	44	28	0.01	0.0
January 19	37	13	0.03	1.1
January 20	29	9	0.00	0.0
January 21	35	7	0.00	0.0
January 22	37	25	0.01	0.4
January 23	27	16	0.00	0.1
January 24	25	4	0.02	0.3
January 25	19	-1	0.00	0.0
January 26	26	-3	0.00	0.0
January 27	33	19	0.01	0.1
January 28	20	-17	0.12	2.7
January 29	17	-19	0.00	0.0
January 30	29	-4	0.00	0.0
January 31	48	5	0.00	0.0

February 1991 Helena Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
February 1	50	24	0.00	0.0
February 2	56	25	0.00	0.0
February 3	53	31	0.00	0.0
February 4	55	29	0.00	0.0
February 5	54	31	0.00	0.0
February 6	48	22	0.00	0.0
February 7	53	19	0.00	0.0
February 8	43	22	0.00	0.0
February 9	48	21	0.00	0.0
February 10	51	18	0.00	0.0
February 11	50	19	0.00	0.0
February 12	50	24	0.00	0.0
February 13	48	35	0.00	0.0
February 14	49	34	0.00	0.0
February 15	51	31	0.00	0.0
February 16	55	36	0.00	0.0
February 17	46	34	0.00	0.0
February 18	43	29	0.00	0.0
February 19	55	31	0.00	0.0
February 20	55	41	0.00	0.0
February 21	51	29	0.00	0.0
February 22	55	23	0.02	0.7
February 23	46	16	0.00	0.0
February 24	43	19	0.00	0.1
February 25	47	25	0.00	0.0
February 26	49	18	0.00	0.0
February 27	44	24	0.00	0.0
February 28	31	7	0.00	0.0

March 1991 Helena Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
March 1	8	3	0.12	3.5
March 2	38	-7	0.04	0.2
March 3	53	32	0.01	0.0
March 4	60	34	0.07	0.0
March 5	36	22	0.00	0.0
March 6	38	26	0.00	0.0
March 7	40	28	0.00	0.0
March 8	44	24	0.00	0.0
March 9	57	17	0.00	0.0
March 10	58	29	0.00	0.0
March 11	45	22	0.00	0.0
March 12	49	21	0.00	0.0
March 13	42	26	0.00	0.0
March 14	49	27	0.00	0.0
March 15	45	30	0.00	0.0
March 16	45	32	0.19	2.4
March 17	45	22	0.00	0.0
March 18	57	20	0.00	0.0
March 19	62	24	0.00	0.0
March 20	56	30	0.00	0.0
March 21	47	35	0.11	0.0
March 22	51	31	0.00	0.0
March 23	49	26	0.02	0.2
March 24	42	27	0.18	1.1
March 25	30	15	0.10	2.9
March 26	30	14	0.06	1.9
March 27	42	15	0.00	0.0
March 28	46	32	0.00	0.0
March 29	49	31	0.00	0.0
March 30	59	34	0.00	0.0
March 31	67	27	0.00	0.0

April 1991 Helena Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
April 1	69	33	0.00	0.0
April 2	60	41	0.03	0.0
April 3	60	35	0.02	0.0
April 4	70	35	0.00	0.0
April 5	70	43	0.00	0.0
April 6	52	34	0.00	0.0
April 7	49	22	0.02	0.2
April 8	49	28	0.00	0.0
April 9	54	25	0.00	0.0
April 10	46	30	0.00	0.0
April 11	36	31	0.26	2.8
April 12	44	32	0.00	0.0
April 13	48	32	0.00	0.0
April 14	55	27	0.00	0.0
April 15	51	30	0.00	0.0
April 16	40	35	0.16	0.6
April 17	42	33	0.18	2.0
April 18	45	34	0.06	0.0
April 19	56	36	0.00	0.0
April 20	64	30	0.00	0.0
April 21	66	32	0.00	0.0
April 22	71	31	0.00	0.0
April 23	69	35	0.00	0.0
April 24	64	38	0.01	0.0
April 25	44	35	0.00	0.0
April 26	51	36	0.00	0.0
April 27	50	36	0.00	0.0
April 28	55	39	0.00	0.0
April 29	50	31	0.01	0.0
April 30	55	31	0.00	0.0

May 1991 Helena Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
May 1	54	26	0.00	0.0
May 2	41	34	0.02	0.2
May 3	44	33	0.01	0.2
May 4	51	33	0.00	0.0
May 5	63	26	0.00	0.0
May 6	68	44	0.00	0.0
May 7	65	42	0.00	0.0
May 8	72	38	0.01	0.0
May 9	53	42	0.00	0.0
May 10	54	40	0.02	0.0
May 11	57	44	0.74	0.0
May 12	60	40	0.00	0.0
May 13	70	43	0.00	0.0
May 14	60	50	0.00	0.0
May 15	67	47	0.00	0.0
May 16	73	41	0.00	0.0
May 17	76	45	0.10	0.0
May 18	64	44	0.50	0.0
May 19	73	36	0.00	0.0
May 20	74	43	0.22	0.0
May 21	74	40	0.00	0.0
May 22	78	45	0.00	0.0
May 23	76	48	0.00	0.0
May 24	77	52	0.00	0.0
May 25	63	47	0.02	0.0
May 26	63	43	0.00	0.0
May 27	60	43	0.00	0.0
May 28	63	41	0.02	0.0
May 29	68	37	0.01	0.0
May 30	62	41	0.00	0.0
May 31	70	48	0.04	0.0

June 1991 Helena Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
June 1	78	42	0.00	0.0
June 2	83	48	0.04	0.0
June 3	79	49	0.00	0.0
June 4	66	48	0.21	0.0
June 5	57	48	0.55	0.0
June 6	64	49	0.14	0.0
June 7	70	51	0.15	0.0
June 8	72	43	0.00	0.0
June 9	76	45	0.00	0.0
June 10	85	47	0.00	0.0
June 11	78	50	0.00	0.0
June 12	75	48	0.00	0.0
June 13	70	45	0.00	0.0
June 14	63	45	0.00	0.0
June 15	75	42	0.00	0.0
June 16	67	45	0.00	0.0
June 17	68	45	0.00	0.0
June 18	77	36	0.00	0.0
June 19	66	49	0.69	0.5
June 20	69	48	0.33	0.0
June 21	78	42	0.03	0.0
June 22	69	52	0.45	0.0
June 23	70	46	0.00	0.0
June 24	67	47	0.08	0.0
June 25	72	50	0.00	0.0
June 26	72	45	0.03	0.0
June 27	74	50	0.09	0.0
June 28	75	53	0.22	0.0
June 29	76	49	0.16	0.0
June 30	69	53	0.10	0.0

July 1991 Helena Weather

Day	High (°F)	Low (°F)	Precip. (inches)
July 1	75	52	0.00
July 2	82	48	0.00
July 3	91	51	0.00
July 4	93	53	0.00
July 5	88	57	0.00
July 6	83	57	0.00
July 7	76	51	0.00
July 8	85	49	0.00
July 9	88	53	0.16
July 10	82	55	0.03
July 11	85	50	0.00
July 12	92	51	0.00
July 13	95	55	0.03
July 14	82	56	0.11
July 15	91	52	0.02
July 16	92	57	0.00
July 17	88	57	0.00
July 18	81	52	0.00
July 19	86	49	0.00
July 20	92	54	0.00
July 21	89	59	0.00
July 22	84	59	0.00
July 23	87	59	0.00
July 24	88	59	0.00
July 25	86	58	0.37
July 26	84	55	0.00
July 27	87	51	0.00
July 28	93	54	0.00
July 29	96	56	0.00
July 30	91	56	0.00
July 31	93	54	0.00

August 1991 Helena Weather

Day	High (°F)	Low (°F)	Precip. (inches)
August 1	73	58	0.19
August 2	80	50	0.00
August 3	88	49	0.00
August 4	91	55	0.00
August 5	87	55	0.00
August 6	92	57	0.00
August 7	94	51	0.00
August 8	97	60	0.00
August 9	94	62	0.00
August 10	98	61	0.00
August 11	89	63	0.00
August 12	84	63	0.00
August 13	89	62	0.00
August 14	88	58	0.00
August 15	84	56	0.00
August 16	86	52	0.00
August 17	89	55	0.00
August 18	92	55	0.00
August 19	93	54	0.00
August 20	92	56	0.00
August 21	95	54	0.00
August 22	94	56	0.00
August 23	94	63	0.00
August 24	88	57	0.00
August 25	89	52	0.00
August 26	90	53	0.00
August 27	88	59	0.42
August 28	82	57	0.09
August 29	89	50	0.00
August 30	93	50	0.00
August 31	96	50	0.00

September 1991 Helena Weather

Day	High (°F)	Low (°F)	Precip. (inches)
September 1	91	64	0.00
September 2	80	57	0.00
September 3	79	47	0.00
September 4	84	44	0.00
September 5	84	51	0.00
September 6	89	48	0.00
September 7	84	55	0.00
September 8	66	48	0.20
September 9	52	45	0.07
September 10	74	48	0.00
September 11	66	50	0.90
September 12	75	44	0.00
September 13	75	47	0.05
September 14	51	42	0.01
September 15	68	40	0.00
September 16	66	47	0.00
September 17	56	38	0.03
September 18	64	31	0.00
September 19	77	37	0.00
September 20	82	40	0.00
September 21	59	40	0.00
September 22	62	31	0.00
September 23	67	44	0.00
September 24	79	39	0.00
September 25	78	39	0.00
September 26	79	39	0.00
September 27	79	41	0.00
September 28	69	40	0.00
September 29	73	44	0.00
September 30	78	36	0.00

October 1991 Helena Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
October 1	80	47	0.00	0.0
October 2	71	39	0.00	0.0
October 3	55	36	0.00	0.0
October 4	52	31	0.00	0.0
October 5	62	26	0.00	0.0
October 6	74	31	0.00	0.0
October 7	77	36	0.00	0.0
October 8	72	35	0.00	0.0
October 9	74	31	0.00	0.0
October 10	82	37	0.00	0.0
October 11	79	36	0.00	0.0
October 12	80	36	0.00	0.0
October 13	68	39	0.00	0.0
October 14	76	53	0.00	0.0
October 15	83	43	0.00	0.0
October 16	80	44	0.01	0.0
October 17	50	33	0.00	0.0
October 18	48	28	0.00	0.0
October 19	60	42	0.00	0.0
October 20	65	36	0.00	0.0
October 21	72	42	0.07	0.0
October 22	44	25	0.00	0.0
October 23	45	18	0.00	0.0
October 24	47	21	0.00	0.0
October 25	46	26	0.00	0.0
October 26	31	18	0.44	5.0
October 27	19	13	0.10	1.5
October 28	21	3	0.00	0.1
October 29	18	-2	0.00	0.0
October 30	18	-8	0.00	0.0
October 31	25	12	0.03	0.7

November 1991 Helena Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
November 1	21	-9	0.00	0.0
November 2	12	-13	0.00	0.0
November 3	18	-8	0.00	0.0
November 4	45	18	0.00	0.0
November 5	43	28	0.21	0.0
November 6	40	18	0.00	0.0
November 7	44	24	0.00	0.0
November 8	48	28	0.00	0.0
November 9	55	30	0.00	0.0
November 10	53	27	0.00	0.0
November 11	47	25	0.00	0.0
November 12	54	35	0.01	0.0
November 13	47	36	0.01	0.0
November 14	45	23	0.00	0.0
November 15	41	16	0.00	0.0
November 16	43	13	0.00	0.0
November 17	52	26	0.00	0.0
November 18	45	35	0.00	0.0
November 19	48	28	0.00	0.0
November 20	53	32	0.00	0.0
November 21	40	29	0.02	0.2
November 22	36	20	0.00	0.0
November 23	34	13	0.00	0.0
November 24	47	28	0.00	0.0
November 25	49	29	0.00	0.0
November 26	43	29	0.00	0.0
November 27	36	10	0.55	6.9
November 28	35	9	0.05	1.2
November 29	28	-1	0.03	0.5
November 30	12	-9	0.00	0.0

December 1991 Helena Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
December 1	31	0	0.03	0.4
December 2	31	16	0.14	1.8
December 3	43	19	0.00	0.0
December 4	45	28	0.00	0.0
December 5	43	33	0.00	0.0
December 6	49	35	0.04	0.0
December 7	42	31	0.01	0.0
December 8	38	29	0.18	2.8
December 9	50	29	0.02	0.0
December 10	37	19	0.00	0.0
December 11	43	18	0.00	0.0
December 12	45	28	0.08	0.9
December 13	33	8	0.29	9.8
December 14	27	3	0.00	0.0
December 15	20	0	0.00	0.0
December 16	34	10	0.00	0.0
December 17	23	4	0.00	0.0
December 18	36	0	0.00	0.0
December 19	37	21	0.00	0.0
December 20	29	10	0.00	0.0
December 21	31	8	0.00	0.0
December 22	34	14	0.00	0.0
December 23	30	12	0.00	0.0
December 24	24	7	0.00	0.0
December 25	27	8	0.00	0.0
December 26	20	6	0.00	0.0
December 27	20	0	0.00	0.0
December 28	17	-1	0.00	0.0
December 29	27	3	0.00	0.0
December 30	23	2	0.00	0.0
December 31	25	6	0.00	0.0

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Weather Station Details

Years	Station	Coordinates
1939–2024	Helena Regional Airport	location
1893–1938	Helna	location