Helena Weather in 1977

Historical record of Helena, Montana weather for the year 1977 based on NOAA data.

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1977 Helena Weather Extremes
Highest temperature	93 °F	August 19
Lowest temperature	-20 °F	December 31
Highest daily low	65 °F	July 23
Lowest daily high	-7 °F	December 8
Most daily precipitation	1.1 inches	May 14
Most daily snow	5.8 inches	December 4
Total annual precipitation	11.3 inches	-
Total annual snow	56.9 inches	-

What was the hottest temperature in Helena in 1977?

The highest temperature recorded in Helena, Montana in 1977 was 93 °F which happened 3 different times.

Highest Temperatures: All-Time By Year

Highest Temperatures in Helena in 1977

Rank	Temperature	Date
1	93 °F	Aug 19
1	93 °F	Aug 1
1	93 °F	Jul 16
4	92 °F	Jul 23
4	92 °F	Jul 22
6	91 °F	Aug 18
6	91 °F	Aug 2
6	91 °F	Jul 28
6	91 °F	Jun 24
6	91 °F	Jun 1

What was the coldest temperature in Helena in 1977?

The lowest temperature recorded in Helena, Montana in 1977 was -20 °F which happened on Dec 31.

Lowest Temperatures: All-Time By Year

Lowest Temperatures in Helena in 1977

Rank	Temperature	Date
1	-20 °F	December 31
2	-19 °F	January 5
3	-16 °F	December 8
3	-16 °F	January 9
5	-15 °F	January 8
6	-13 °F	December 7
7	-12 °F	November 21
8	-11 °F	January 2
9	-10 °F	December 9
10	-8 °F	November 20

January 1977 Helena Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
January 1	14	-7	0.02	0.3
January 2	9	-11	0.00	0.0
January 3	20	7	0.16	5.5
January 4	15	-4	0.02	0.6
January 5	6	-19	0.00	0.0
January 6	19	4	0.04	0.4
January 7	32	5	0.03	0.4
January 8	8	-15	0.00	0.0
January 9	8	-16	0.00	0.0
January 10	26	7	0.00	0.0
January 11	26	8	0.00	0.0
January 12	31	18	0.00	0.0
January 13	37	28	0.00	0.0
January 14	35	5	0.10	1.5
January 15	14	5	0.21	4.2
January 16	23	2	0.00	0.0
January 17	47	21	0.00	0.0
January 18	51	33	0.07	0.9
January 19	35	22	0.00	0.0
January 20	30	19	0.00	0.0
January 21	26	16	0.00	0.0
January 22	31	14	0.00	0.0
January 23	30	8	0.00	0.0
January 24	26	10	0.00	0.0
January 25	31	6	0.00	0.0
January 26	34	15	0.00	0.0
January 27	45	15	0.00	0.0
January 28	37	18	0.00	0.0
January 29	37	17	0.00	0.0
January 30	34	15	0.00	0.0
January 31	36	17	0.00	0.0

February 1977 Helena Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
February 1	41	22	0.00	0.0
February 2	40	17	0.00	0.0
February 3	41	18	0.00	0.0
February 4	39	15	0.00	0.0
February 5	44	15	0.00	0.0
February 6	42	12	0.00	0.0
February 7	41	16	0.00	0.0
February 8	48	16	0.00	0.0
February 9	50	18	0.00	0.0
February 10	44	23	0.03	0.0
February 11	49	33	0.00	0.0
February 12	51	35	0.00	0.0
February 13	51	26	0.06	0.3
February 14	48	20	0.00	0.0
February 15	46	24	0.00	0.0
February 16	59	26	0.00	0.0
February 17	55	33	0.00	0.0
February 18	53	30	0.00	0.0
February 19	55	22	0.00	0.0
February 20	57	19	0.00	0.0
February 21	53	27	0.00	0.0
February 22	45	33	0.00	0.0
February 23	44	28	0.00	0.0
February 24	36	16	0.02	0.3
February 25	37	15	0.00	0.0
February 26	37	27	0.02	0.2
February 27	40	18	0.00	0.0
February 28	39	17	0.00	0.0

March 1977 Helena Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
March 1	39	23	0.32	4.0
March 2	38	26	0.12	2.3
March 3	36	21	0.00	0.0
March 4	38	16	0.00	0.0
March 5	43	24	0.00	0.0
March 6	54	21	0.00	0.0
March 7	54	30	0.00	0.0
March 8	47	29	0.01	0.1
March 9	51	28	0.06	0.2
March 10	43	30	0.00	0.0
March 11	47	18	0.00	0.0
March 12	49	24	0.00	0.0
March 13	37	25	0.17	1.9
March 14	34	16	0.00	0.0
March 15	36	7	0.00	0.0
March 16	44	16	0.00	0.0
March 17	41	25	0.00	0.0
March 18	38	22	0.00	0.0
March 19	29	15	0.16	1.7
March 20	35	3	0.00	0.0
March 21	49	25	0.00	0.0
March 22	57	29	0.00	0.0
March 23	65	25	0.00	0.0
March 24	49	27	0.00	0.0
March 25	50	24	0.00	0.0
March 26	46	29	0.00	0.0
March 27	43	29	0.10	0.2
March 28	33	22	0.02	0.3
March 29	25	20	0.15	3.4
March 30	37	15	0.00	0.0
March 31	40	17	0.00	0.0

April 1977 Helena Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
April 1	39	24	0.00	0.0
April 2	43	20	0.00	0.0
April 3	47	18	0.00	0.0
April 4	57	33	0.00	0.0
April 5	68	26	0.00	0.0
April 6	72	29	0.00	0.0
April 7	74	29	0.00	0.0
April 8	79	31	0.00	0.0
April 9	59	41	0.00	0.0
April 10	55	33	0.00	0.0
April 11	59	22	0.00	0.0
April 12	60	28	0.00	0.0
April 13	64	24	0.00	0.0
April 14	52	30	0.04	0.0
April 15	66	21	0.00	0.0
April 16	68	30	0.00	0.0
April 17	53	32	0.00	0.0
April 18	55	22	0.00	0.0
April 19	49	28	0.00	0.0
April 20	52	31	0.05	0.5
April 21	64	29	0.00	0.0
April 22	73	37	0.00	0.0
April 23	78	34	0.00	0.0
April 24	80	37	0.00	0.0
April 25	80	35	0.00	0.0
April 26	72	39	0.00	0.0
April 27	67	38	0.00	0.0
April 28	73	33	0.00	0.0
April 29	74	38	0.01	0.0
April 30	72	37	0.00	0.0

May 1977 Helena Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
May 1	72	41	0.00	0.0
May 2	70	45	0.00	0.0
May 3	63	40	0.07	0.0
May 4	52	37	0.00	0.0
May 5	54	33	0.00	0.0
May 6	55	33	0.12	0.0
May 7	68	37	0.03	0.0
May 8	72	41	0.00	0.0
May 9	79	43	0.02	0.0
May 10	66	44	0.00	0.0
May 11	64	41	0.00	0.0
May 12	78	33	0.00	0.0
May 13	75	45	0.00	0.0
May 14	70	42	1.07	0.0
May 15	58	35	0.03	0.0
May 16	47	34	0.07	0.0
May 17	41	34	0.21	1.0
May 18	49	33	0.00	0.0
May 19	49	31	0.00	0.0
May 20	60	34	0.00	0.0
May 21	64	36	0.04	0.0
May 22	65	36	0.02	0.0
May 23	72	45	0.05	0.0
May 24	63	45	0.01	0.0
May 25	55	47	0.01	0.0
May 26	63	36	0.04	0.0
May 27	56	41	0.03	0.0
May 28	53	32	0.00	0.0
May 29	61	36	0.00	0.0
May 30	69	29	0.00	0.0
May 31	83	40	0.00	0.0

June 1977 Helena Weather

Day	High (°F)	Low (°F)	Precip. (inches)
June 1	91	46	0.11
June 2	70	49	0.00
June 3	77	46	0.00
June 4	86	55	0.00
June 5	88	52	0.00
June 6	88	53	0.00
June 7	85	58	0.00
June 8	79	60	0.11
June 9	72	51	0.00
June 10	59	47	0.08
June 11	58	46	0.13
June 12	68	46	0.00
June 13	68	47	0.21
June 14	70	50	0.55
June 15	70	46	0.09
June 16	68	47	0.00
June 17	73	43	0.00
June 18	80	44	0.00
June 19	82	49	0.00
June 20	76	52	0.09
June 21	76	51	0.00
June 22	80	51	0.00
June 23	81	48	0.00
June 24	91	49	0.00
June 25	89	53	0.00
June 26	87	62	0.00
June 27	79	52	0.00
June 28	83	46	0.00
June 29	71	50	0.00
June 30	80	42	0.00

July 1977 Helena Weather

Day	High (°F)	Low (°F)	Precip. (inches)
July 1	88	48	0.00
July 2	80	52	0.00
July 3	75	43	0.04
July 4	65	44	0.01
July 5	75	47	0.00
July 6	68	46	0.01
July 7	73	41	0.00
July 8	82	44	0.00
July 9	80	52	0.08
July 10	75	49	0.67
July 11	76	43	0.00
July 12	85	50	0.05
July 13	72	52	0.17
July 14	80	43	0.00
July 15	90	49	0.00
July 16	93	52	0.00
July 17	88	53	0.00
July 18	80	57	0.00
July 19	81	56	0.09
July 20	86	51	0.02
July 21	90	55	0.00
July 22	92	54	0.00
July 23	92	65	0.00
July 24	79	60	0.12
July 25	76	58	0.11
July 26	83	54	0.00
July 27	84	50	0.00
July 28	91	50	0.00
July 29	81	57	0.00
July 30	83	55	0.00
July 31	88	52	0.00

August 1977 Helena Weather

Day	High (°F)	Low (°F)	Precip. (inches)
August 1	93	52	0.00
August 2	91	50	0.00
August 3	84	53	0.00
August 4	68	53	0.02
August 5	72	53	0.00
August 6	74	52	0.12
August 7	82	50	0.00
August 8	80	50	0.00
August 9	71	49	0.00
August 10	76	46	0.00
August 11	85	40	0.00
August 12	85	45	0.00
August 13	79	55	0.00
August 14	76	51	0.00
August 15	76	48	0.01
August 16	83	47	0.00
August 17	90	47	0.00
August 18	91	53	0.00
August 19	93	58	0.00
August 20	81	55	0.00
August 21	87	49	0.00
August 22	78	52	0.00
August 23	86	46	0.00
August 24	89	48	0.00
August 25	70	49	0.00
August 26	64	47	0.16
August 27	67	45	0.00
August 28	73	36	0.00
August 29	70	51	0.00
August 30	53	43	0.41
August 31	64	36	0.00

September 1977 Helena Weather

Day	High (°F)	Low (°F)	Precip. (inches)
September 1	71	45	0.00
September 2	75	43	0.00
September 3	80	45	0.00
September 4	87	49	0.00
September 5	86	52	0.00
September 6	88	49	0.00
September 7	87	47	0.02
September 8	66	47	0.01
September 9	77	35	0.00
September 10	81	39	0.00
September 11	77	45	0.00
September 12	78	39	0.00
September 13	83	40	0.00
September 14	83	40	0.00
September 15	64	49	0.29
September 16	61	47	0.36
September 17	62	40	0.06
September 18	70	34	0.00
September 19	71	42	0.00
September 20	66	46	0.13
September 21	62	40	0.14
September 22	58	38	0.00
September 23	64	32	0.00
September 24	60	38	0.06
September 25	60	30	0.00
September 26	65	35	0.00
September 27	68	33	0.02
September 28	59	44	0.13
September 29	60	43	0.30
September 30	58	42	0.41

October 1977 Helena Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
October 1	56	35	0.00	0.0
October 2	61	31	0.00	0.0
October 3	54	34	0.00	0.0
October 4	50	25	0.00	0.0
October 5	50	30	0.00	0.0
October 6	57	28	0.06	0.0
October 7	56	38	0.00	0.0
October 8	60	35	0.00	0.0
October 9	49	30	0.01	0.0
October 10	49	25	0.01	0.1
October 11	60	22	0.00	0.0
October 12	69	28	0.00	0.0
October 13	69	38	0.00	0.0
October 14	62	33	0.00	0.0
October 15	68	29	0.00	0.0
October 16	70	30	0.00	0.0
October 17	68	30	0.00	0.0
October 18	68	27	0.00	0.0
October 19	66	31	0.00	0.0
October 20	63	37	0.00	0.0
October 21	62	31	0.00	0.0
October 22	63	30	0.00	0.0
October 23	68	27	0.00	0.0
October 24	70	33	0.00	0.0
October 25	65	44	0.08	0.0
October 26	58	32	0.00	0.0
October 27	56	24	0.00	0.0
October 28	58	29	0.00	0.0
October 29	61	35	0.00	0.0
October 30	55	28	0.00	0.0
October 31	47	29	0.01	0.3

November 1977 Helena Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
November 1	57	28	0.00	0.0
November 2	58	32	0.00	0.0
November 3	47	21	0.00	0.0
November 4	52	24	0.00	0.0
November 5	52	26	0.02	0.0
November 6	49	29	0.00	0.0
November 7	50	29	0.00	0.0
November 8	39	17	0.00	0.0
November 9	41	17	0.00	0.0
November 10	51	27	0.00	0.0
November 11	53	24	0.00	0.0
November 12	55	27	0.00	0.0
November 13	54	24	0.00	0.0
November 14	54	30	0.06	0.0
November 15	44	34	0.00	0.0
November 16	43	29	0.00	0.0
November 17	36	22	0.00	0.0
November 18	27	14	0.06	0.7
November 19	15	2	0.01	0.1
November 20	6	-8	0.00	0.0
November 21	13	-12	0.00	0.0
November 22	14	4	0.20	4.7
November 23	14	-1	0.01	0.1
November 24	43	2	0.00	0.1
November 25	55	32	0.01	0.0
November 26	55	20	0.11	1.1
November 27	44	23	0.00	0.0
November 28	47	32	0.00	0.0
November 29	52	32	0.00	0.0
November 30	43	29	0.00	0.0

December 1977 Helena Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
December 1	36	29	0.07	0.7
December 2	50	30	0.20	0.9
December 3	52	34	0.00	0.0
December 4	39	3	0.32	5.8
December 5	8	-5	0.08	1.4
December 6	19	6	0.09	0.9
December 7	37	-13	0.08	0.6
December 8	-7	-16	0.04	0.4
December 9	4	-10	0.01	0.1
December 10	20	-1	0.00	0.0
December 11	53	14	0.02	0.0
December 12	45	36	0.00	0.0
December 13	47	34	0.00	0.0
December 14	50	35	0.00	0.0
December 15	44	35	0.02	0.0
December 16	40	28	0.00	0.0
December 17	32	18	0.02	0.4
December 18	34	20	0.00	0.0
December 19	37	19	0.00	0.0
December 20	31	13	0.00	0.0
December 21	27	15	0.00	0.0
December 22	39	20	0.00	0.0
December 23	33	12	0.14	2.8
December 24	16	-4	0.01	0.2
December 25	36	-5	0.00	0.0
December 26	33	4	0.00	0.0
December 27	21	-2	0.00	0.0
December 28	20	-5	0.00	0.0
December 29	26	5	0.16	2.2
December 30	23	2	0.22	3.1
December 31	5	-20	0.00	0.0

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Weather Station Details

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