Helena Weather in 1921

Historical record of Helena, Montana weather for the year 1921 based on NOAA data.

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1921 Helena Weather Extremes
Highest temperature	98 °F	July 20
Lowest temperature	-17 °F	December 19
Highest daily low	67 °F	July 20
Lowest daily high	-6 °F	December 19
Most daily precipitation	0.8 inches	September 9
Most daily snow	10.1 inches	November 21
Total annual precipitation	11.1 inches	-
Total annual snow	69.4 inches	-

What was the hottest temperature in Helena in 1921?

The highest temperature recorded in Helena, Montana in 1921 was 98 °F which happened on July 20.

Highest Temperatures: All-Time By Year

Highest Temperatures in Helena in 1921

Rank	Temperature	Date
1	98 °F	Jul 20
2	97 °F	Jul 8
3	94 °F	Jul 19
4	93 °F	Aug 30
4	93 °F	Jul 15
6	91 °F	Jul 23
6	91 °F	Jul 7
6	91 °F	Jun 13
9	90 °F	Aug 29
9	90 °F	Jul 22
9	90 °F	Jul 14

What was the coldest temperature in Helena in 1921?

The lowest temperature recorded in Helena, Montana in 1921 was -17 °F which happened on Dec 19.

Lowest Temperatures: All-Time By Year

Lowest Temperatures in Helena in 1921

Rank	Temperature	Date
1	-17 °F	December 19
2	-16 °F	December 20
3	-13 °F	November 19
4	-10 °F	November 21
5	-9 °F	December 18
6	-8 °F	November 18
7	-7 °F	November 20
8	-6 °F	November 22
9	-5 °F	March 12
10	-2 °F	December 22
10	-2 °F	December 21

January 1921 Helena Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
January 1	40	28	0.04	0.9
January 2	46	34	0.16	0.0
January 3	39	27	0.00	0.2
January 4	42	22	0.00	0.0
January 5	52	29	0.13	0.6
January 6	29	20	0.00	0.2
January 7	27	13	0.00	0.0
January 8	36	25	0.00	0.0
January 9	36	14	0.01	0.1
January 10	25	10	0.00	0.0
January 11	20	6	0.00	0.0
January 12	36	6	0.00	0.0
January 13	34	28	0.00	0.0
January 14	50	30	0.00	0.0
January 15	51	22	0.00	0.0
January 16	23	15	0.02	0.1
January 17	30	18	0.00	0.2
January 18	52	27	0.00	0.0
January 19	42	30	0.00	0.0
January 20	34	21	0.00	0.0
January 21	32	17	0.00	0.0
January 22	40	23	0.00	0.0
January 23	31	16	0.00	0.0
January 24	36	21	0.00	0.0
January 25	40	22	0.00	0.0
January 26	44	26	0.00	0.0
January 27	46	32	0.00	0.0
January 28	42	25	0.00	0.0
January 29	39	16	0.00	0.0
January 30	44	28	0.00	0.0
January 31	39	27	0.00	0.2

February 1921 Helena Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
February 1	43	29	0.00	0.0
February 2	43	25	0.00	0.0
February 3	36	25	0.00	0.0
February 4	33	18	0.00	0.0
February 5	34	16	0.00	0.0
February 6	28	19	0.00	0.0
February 7	39	16	0.00	0.0
February 8	39	27	0.00	0.0
February 9	46	27	0.00	0.0
February 10	55	34	0.02	0.0
February 11	59	37	0.00	0.0
February 12	63	45	0.00	0.0
February 13	51	32	0.00	0.0
February 14	58	24	0.00	0.0
February 15	24	1	0.18	2.3
February 16	18	1	0.01	0.3
February 17	23	-1	0.00	0.0
February 18	22	7	0.00	0.0
February 19	32	11	0.00	0.0
February 20	36	28	0.00	0.0
February 21	37	24	0.04	0.5
February 22	45	22	0.00	0.0
February 23	58	40	0.00	0.0
February 24	60	36	0.00	0.0
February 25	56	38	0.00	0.0
February 26	60	31	0.00	0.0
February 27	57	36	0.00	0.0
February 28	52	39	0.00	0.0

March 1921 Helena Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
March 1	53	34	0.00	0.0
March 2	51	31	0.00	0.0
March 3	68	35	0.00	0.0
March 4	55	29	0.19	0.0
March 5	44	23	0.00	2.3
March 6	45	34	0.00	0.0
March 7	34	20	0.01	0.3
March 8	39	18	0.07	2.3
March 9	50	29	0.00	0.0
March 10	35	9	0.40	6.0
March 11	13	2	0.11	2.8
March 12	19	-5	0.00	0.0
March 13	23	0	0.02	0.0
March 14	43	16	0.09	1.6
March 15	44	14	0.00	0.0
March 16	50	39	0.00	0.0
March 17	57	38	0.00	0.0
March 18	50	33	0.16	0.8
March 19	40	13	0.04	0.0
March 20	37	8	0.00	0.6
March 21	50	25	0.00	0.0
March 22	54	32	0.00	0.0
March 23	50	39	0.00	0.0
March 24	48	36	0.01	0.1
March 25	43	28	0.05	0.4
March 26	39	18	0.02	0.2
March 27	42	17	0.01	0.8
March 28	62	38	0.00	0.0
March 29	53	26	0.06	1.8
March 30	51	21	0.00	0.0
March 31	63	30	0.00	0.0

April 1921 Helena Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
April 1	67	44	0.00	0.0
April 2	73	44	0.00	0.0
April 3	48	33	0.22	0.0
April 4	34	28	0.16	2.2
April 5	32	25	0.06	0.8
April 6	32	20	0.08	0.8
April 7	37	19	0.00	0.0
April 8	39	22	0.00	0.0
April 9	53	15	0.00	0.0
April 10	63	26	0.00	0.0
April 11	65	35	0.00	0.0
April 12	63	38	0.00	0.0
April 13	58	37	0.10	0.0
April 14	51	39	0.24	0.0
April 15	53	34	0.00	0.0
April 16	62	29	0.00	0.0
April 17	60	33	0.00	0.0
April 18	59	36	0.04	0.0
April 19	55	40	0.00	0.0
April 20	47	37	0.00	0.0
April 21	53	33	0.00	0.0
April 22	56	37	0.01	0.0
April 23	43	32	0.00	0.0
April 24	40	31	0.11	0.4
April 25	44	31	0.00	0.8
April 26	48	35	0.00	0.0
April 27	50	35	0.00	0.0
April 28	51	35	0.03	0.3
April 29	55	32	0.02	0.2
April 30	47	31	0.00	0.0

May 1921 Helena Weather

Day	High (°F)	Low (°F)	Precip. (inches)
May 1	67	27	0.00
May 2	60	32	0.01
May 3	62	30	0.00
May 4	76	37	0.00
May 5	71	48	0.00
May 6	58	46	0.28
May 7	61	45	0.11
May 8	50	42	0.27
May 9	51	40	0.19
May 10	67	35	0.01
May 11	50	40	0.00
May 12	56	35	0.00
May 13	54	38	0.00
May 14	56	36	0.00
May 15	48	35	0.01
May 16	45	41	0.03
May 17	64	42	0.00
May 18	71	45	0.40
May 19	66	46	0.01
May 20	69	46	0.00
May 21	71	45	0.00
May 22	63	46	0.00
May 23	70	48	0.08
May 24	76	44	0.00
May 25	78	48	0.00
May 26	74	54	0.00
May 27	54	37	0.03
May 28	48	40	0.01
May 29	58	40	0.00
May 30	62	45	0.00
May 31	66	42	0.20

June 1921 Helena Weather

Day	High (°F)	Low (°F)	Precip. (inches)
June 1	56	44	0.17
June 2	56	44	0.00
June 3	68	47	0.00
June 4	76	48	0.01
June 5	75	52	0.00
June 6	81	52	0.00
June 7	81	54	0.00
June 8	74	52	0.00
June 9	80	52	0.00
June 10	78	52	0.00
June 11	74	54	0.00
June 12	84	45	0.00
June 13	91	53	0.00
June 14	76	52	0.25
June 15	55	44	0.40
June 16	58	43	0.26
June 17	67	42	0.03
June 18	70	48	0.00
June 19	70	50	0.00
June 20	73	55	0.00
June 21	83	53	0.00
June 22	89	58	0.00
June 23	83	57	0.00
June 24	84	53	0.24
June 25	78	54	0.00
June 26	85	51	0.00
June 27	86	55	0.00
June 28	85	57	0.01
June 29	89	56	0.28
June 30	80	58	0.00

July 1921 Helena Weather

Day	High (°F)	Low (°F)	Precip. (inches)
July 1	74	46	0.01
July 2	49	42	0.04
July 3	56	44	0.03
July 4	75	41	0.00
July 5	83	49	0.00
July 6	87	55	0.00
July 7	91	57	0.00
July 8	97	57	0.00
July 9	85	60	0.00
July 10	82	53	0.00
July 11	83	56	0.00
July 12	82	57	0.10
July 13	84	59	0.00
July 14	90	59	0.00
July 15	93	62	0.00
July 16	86	58	0.00
July 17	84	56	0.00
July 18	87	54	0.00
July 19	94	60	0.00
July 20	98	67	0.01
July 21	86	61	0.00
July 22	90	58	0.00
July 23	91	60	0.00
July 24	87	60	0.00
July 25	78	55	0.09
July 26	74	57	0.00
July 27	78	53	0.00
July 28	85	51	0.00
July 29	84	51	0.00
July 30	83	50	0.00
July 31	83	62	0.01

August 1921 Helena Weather

Day	High (°F)	Low (°F)	Precip. (inches)
August 1	81	52	0.00
August 2	86	54	0.00
August 3	85	62	0.06
August 4	76	57	0.00
August 5	76	55	0.00
August 6	77	53	0.00
August 7	85	51	0.00
August 8	86	56	0.00
August 9	87	61	0.00
August 10	84	57	0.00
August 11	82	53	0.05
August 12	75	57	0.01
August 13	80	50	0.00
August 14	84	58	0.00
August 15	77	57	0.15
August 16	74	53	0.20
August 17	86	53	0.00
August 18	71	53	0.04
August 19	76	45	0.00
August 20	83	49	0.00
August 21	84	55	0.00
August 22	81	52	0.00
August 23	84	53	0.00
August 24	83	52	0.02
August 25	82	53	0.00
August 26	80	54	0.15
August 27	75	51	0.00
August 28	87	48	0.00
August 29	90	56	0.00
August 30	93	55	0.00
August 31	89	57	0.00

September 1921 Helena Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
September 1	78	55	0.00	0.0
September 2	65	49	0.17	0.0
September 3	59	47	0.02	0.0
September 4	61	43	0.00	0.0
September 5	66	46	0.00	0.0
September 6	70	42	0.00	0.0
September 7	67	48	0.00	0.0
September 8	63	41	0.04	0.0
September 9	41	31	0.77	1.2
September 10	35	30	0.00	0.0
September 11	35	28	0.03	0.0
September 12	37	30	0.00	0.3
September 13	54	29	0.00	0.0
September 14	47	36	0.00	0.0
September 15	50	37	0.02	0.0
September 16	63	38	0.00	0.0
September 17	71	36	0.00	0.0
September 18	69	39	0.00	0.0
September 19	62	44	0.00	0.0
September 20	59	44	0.00	0.0
September 21	65	47	0.00	0.0
September 22	66	47	0.03	0.0
September 23	63	44	0.00	0.0
September 24	70	34	0.00	0.0
September 25	66	41	0.00	0.0
September 26	74	46	0.00	0.0
September 27	75	50	0.00	0.0
September 28	65	42	0.01	0.0
September 29	64	36	0.00	0.0
September 30	64	46	0.00	0.0

October 1921 Helena Weather

Day	High (°F)	Low (°F)	Precip. (inches)
October 1	60	39	0.00
October 2	66	44	0.00
October 3	78	41	0.00
October 4	79	44	0.00
October 5	77	40	0.00
October 6	62	29	0.00
October 7	68	25	0.00
October 8	80	41	0.00
October 9	75	50	0.00
October 10	61	42	0.00
October 11	67	37	0.00
October 12	70	38	0.00
October 13	68	45	0.00
October 14	68	40	0.00
October 15	62	46	0.00
October 16	57	41	0.04
October 17	64	36	0.00
October 18	67	53	0.00
October 19	76	44	0.00
October 20	80	45	0.00
October 21	51	35	0.00
October 22	45	33	0.00
October 23	55	35	0.00
October 24	51	34	0.00
October 25	53	33	0.00
October 26	56	31	0.00
October 27	46	38	0.00
October 28	58	37	0.00
October 29	68	44	0.00
October 30	62	35	0.00
October 31	54	28	0.00

November 1921 Helena Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
November 1	58	42	0.00	0.0
November 2	60	34	0.00	0.0
November 3	62	34	0.00	0.0
November 4	60	39	0.00	0.0
November 5	55	48	0.00	0.0
November 6	58	40	0.00	0.0
November 7	46	21	0.18	0.0
November 8	31	13	0.00	2.6
November 9	46	20	0.00	0.0
November 10	55	34	0.00	0.0
November 11	62	33	0.00	0.0
November 12	51	41	0.00	0.0
November 13	47	31	0.00	0.0
November 14	38	27	0.08	0.0
November 15	39	19	0.01	1.8
November 16	23	13	0.03	1.1
November 17	30	9	0.00	0.0
November 18	12	-8	0.27	3.6
November 19	1	-13	0.01	0.0
November 20	8	-7	0.36	3.7
November 21	-4	-10	0.52	10.1
November 22	24	-6	0.05	0.6
November 23	40	8	0.01	0.3
November 24	45	21	0.00	0.0
November 25	47	30	0.06	0.0
November 26	43	33	0.00	0.0
November 27	50	30	0.00	0.0
November 28	39	23	0.00	0.0
November 29	47	22	0.00	0.0
November 30	48	29	0.07	0.0

December 1921 Helena Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
December 1	47	32	0.15	0.0
December 2	34	22	0.63	6.6
December 3	36	22	0.00	0.0
December 4	36	19	0.00	0.0
December 5	29	13	0.00	0.0
December 6	41	14	0.00	0.0
December 7	25	14	0.00	0.0
December 8	27	12	0.00	0.0
December 9	46	20	0.00	0.0
December 10	51	33	0.00	0.0
December 11	56	37	0.00	0.0
December 12	62	50	0.00	0.0
December 13	53	36	0.00	0.0
December 14	38	24	0.02	0.3
December 15	24	16	0.19	3.7
December 16	23	8	0.00	0.0
December 17	24	8	0.01	0.0
December 18	8	-9	0.01	0.4
December 19	-6	-17	0.01	0.2
December 20	0	-16	0.00	0.0
December 21	8	-2	0.03	0.6
December 22	17	-2	0.00	0.0
December 23	9	2	0.00	0.0
December 24	14	-1	0.00	0.0
December 25	18	5	0.00	0.0
December 26	25	11	0.00	0.0
December 27	31	12	0.00	0.0
December 28	43	24	0.00	0.0
December 29	41	21	0.00	0.0
December 30	41	21	0.08	1.2
December 31	21	9	0.00	0.0

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Weather Station Details

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