Helena Weather in 2021

Historical record of Helena, Montana weather for the year 2021 based on NOAA data.

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2021 Helena Weather Extremes
Highest temperature	104 °F	June 14
Lowest temperature	-23 °F	February 13
Highest daily low	72 °F	July 28
Lowest daily high	-9 °F	February 11
Most daily precipitation	0.7 inches	August 17
Most daily snow	7.0 inches	May 21
Total annual precipitation	8.6 inches	-
Total annual snow	43.7 inches	-

What was the hottest temperature in Helena in 2021?

The highest temperature recorded in Helena, Montana in 2021 was 104 °F which happened on June 14.

Highest Temperatures: All-Time By Year

Highest Temperatures in Helena in 2021

Rank	Temperature	Date
1	104 °F	Jun 14
2	102 °F	Jul 18
3	101 °F	Jul 3
4	100 °F	Jul 26
4	100 °F	Jul 1
4	100 °F	Jun 30
7	98 °F	Aug 1
7	98 °F	Jul 31
7	98 °F	Jul 30
7	98 °F	Jul 6
7	98 °F	Jul 2
7	98 °F	Jun 29

What was the coldest temperature in Helena in 2021?

The lowest temperature recorded in Helena, Montana in 2021 was -23 °F which happened on Feb 13.

Lowest Temperatures: All-Time By Year

Lowest Temperatures in Helena in 2021

Rank	Temperature	Date
1	-23 °F	February 13
2	-20 °F	February 12
3	-16 °F	February 11
4	-12 °F	December 27
4	-12 °F	February 14
4	-12 °F	February 10
7	-11 °F	December 28
8	-10 °F	February 7
9	-9 °F	December 26
10	-8 °F	February 9
10	-8 °F	February 8

January 2021 Helena Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
January 1	45	30	0.00	0.0
January 2	47	26	0.00	0.0
January 3	52	30	0.00	0.0
January 4	46	21	0.00	0.0
January 5	44	27	0.01	0.0
January 6	49	25	0.00	0.0
January 7	38	30	0.14	2.7
January 8	34	19	0.00	0.0
January 9	25	10	0.00	0.0
January 10	30	10	0.00	0.0
January 11	31	13	0.00	0.0
January 12	49	15	0.00	0.0
January 13	53	33	0.03	0.0
January 14	39	22	0.00	0.0
January 15	39	18	0.00	0.0
January 16	41	35	0.00	0.0
January 17	44	36	0.00	0.0
January 18	39	27	0.00	0.0
January 19	38	14	0.00	0.0
January 20	46	29	0.00	0.0
January 21	34	24	0.04	0.7
January 22	32	16	0.00	0.0
January 23	33	11	0.00	0.0
January 24	32	12	0.00	0.0
January 25	31	12	0.00	0.0
January 26	28	9	0.00	0.0
January 27	39	7	0.00	0.0
January 28	49	25	0.00	0.0
January 29	38	30	0.06	0.5
January 30	43	24	0.00	0.0
January 31	43	20	0.00	0.0

February 2021 Helena Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
February 1	46	19	0.00	0.0
February 2	58	23	0.05	0.0
February 3	41	25	0.00	0.0
February 4	36	29	0.00	0.0
February 5	41	5	0.04	1.4
February 6	16	0	0.26	3.5
February 7	4	-10	0.08	1.5
February 8	0	-8	0.07	1.8
February 9	-2	-8	0.06	1.7
February 10	-2	-12	0.04	1.1
February 11	-9	-16	0.03	0.2
February 12	2	-20	0.00	0.0
February 13	4	-23	0.00	0.0
February 14	4	-12	0.02	0.2
February 15	15	2	0.02	0.5
February 16	34	13	0.00	0.0
February 17	29	14	0.05	0.9
February 18	25	11	0.00	0.0
February 19	41	17	0.00	0.0
February 20	38	22	0.00	0.0
February 21	42	30	0.00	0.0
February 22	50	36	0.11	0.0
February 23	41	25	0.02	0.0
February 24	37	22	0.00	0.0
February 25	41	17	0.00	0.0
February 26	39	28	0.00	0.0
February 27	33	20	0.02	0.3
February 28	39	22	0.00	0.0

March 2021 Helena Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
March 1	50	24	0.00	0.0
March 2	52	26	0.00	0.0
March 3	55	27	0.00	0.0
March 4	54	23	0.00	0.0
March 5	57	25	0.00	0.0
March 6	54	30	0.00	0.0
March 7	51	30	0.00	0.0
March 8	38	28	0.09	1.2
March 9	39	25	0.07	1.0
March 10	43	20	0.00	0.0
March 11	47	27	0.00	0.0
March 12	49	23	0.00	0.0
March 13	56	22	0.00	0.0
March 14	60	24	0.00	0.0
March 15	59	26	0.00	0.0
March 16	54	30	0.00	0.0
March 17	59	26	0.00	0.0
March 18	65	28	0.00	0.0
March 19	56	34	0.02	0.0
March 20	51	33	0.00	0.0
March 21	49	33	0.00	0.0
March 22	48	31	0.00	0.0
March 23	43	25	0.00	0.0
March 24	46	26	0.00	0.0
March 25	45	31	0.02	0.0
March 26	47	24	0.00	0.0
March 27	58	40	0.00	0.0
March 28	71	31	0.00	0.0
March 29	49	27	0.00	0.0
March 30	42	21	0.06	1.0
March 31	56	30	0.00	0.0

April 2021 Helena Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
April 1	73	29	0.00	0.0
April 2	71	35	0.00	0.0
April 3	73	34	0.00	0.0
April 4	72	37	0.00	0.0
April 5	52	33	0.36	1.9
April 6	59	33	0.00	0.0
April 7	69	31	0.00	0.0
April 8	51	33	0.00	0.0
April 9	60	29	0.00	0.0
April 10	52	30	0.00	0.0
April 11	40	28	0.00	0.0
April 12	43	24	0.00	0.0
April 13	41	22	0.00	0.0
April 14	38	26	0.00	0.0
April 15	49	33	0.00	0.0
April 16	56	33	0.00	0.0
April 17	68	28	0.00	0.0
April 18	62	30	0.12	0.5
April 19	40	28	0.06	0.5
April 20	45	27	0.00	0.0
April 21	58	22	0.00	0.0
April 22	51	28	0.00	0.0
April 23	47	28	0.04	1.0
April 24	49	31	0.36	0.0
April 25	50	35	0.06	0.0
April 26	59	36	0.00	0.0
April 27	63	31	0.00	0.0
April 28	68	48	0.00	0.0
April 29	69	51	0.00	0.0
April 30	81	47	0.00	0.0

May 2021 Helena Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
May 1	74	54	0.00	0.0
May 2	54	39	0.04	0.0
May 3	62	32	0.00	0.0
May 4	64	45	0.00	0.0
May 5	67	39	0.00	0.0
May 6	78	36	0.00	0.0
May 7	65	43	0.11	0.0
May 8	51	39	0.00	0.0
May 9	50	39	0.05	0.0
May 10	57	36	0.00	0.0
May 11	63	33	0.03	0.0
May 12	67	34	0.00	0.0
May 13	73	46	0.00	0.0
May 14	72	46	0.00	0.0
May 15	75	41	0.00	0.0
May 16	80	43	0.00	0.0
May 17	86	43	0.00	0.0
May 18	75	49	0.00	0.0
May 19	56	37	0.14	0.0
May 20	39	28	0.64	0.8
May 21	33	27	0.44	7.0
May 22	43	29	0.00	0.0
May 23	46	33	0.44	0.2
May 24	62	42	0.00	0.0
May 25	68	49	0.26	0.0
May 26	56	45	0.11	0.0
May 27	77	38	0.00	0.0
May 28	65	47	0.00	0.0
May 29	68	39	0.00	0.0
May 30	76	39	0.00	0.0
May 31	82	44	0.00	0.0

June 2021 Helena Weather

Day	High (°F)	Low (°F)	Precip. (inches)
June 1	84	50	0.00
June 2	92	54	0.00
June 3	94	57	0.00
June 4	92	59	0.02
June 5	85	55	0.00
June 6	71	47	0.00
June 7	77	46	0.00
June 8	73	54	0.01
June 9	81	50	0.00
June 10	76	48	0.00
June 11	74	37	0.00
June 12	78	47	0.00
June 13	95	50	0.01
June 14	104	56	0.00
June 15	94	59	0.00
June 16	81	52	0.00
June 17	85	50	0.00
June 18	88	51	0.00
June 19	83	55	0.00
June 20	66	50	0.37
June 21	84	47	0.00
June 22	93	55	0.00
June 23	85	61	0.00
June 24	87	51	0.00
June 25	82	55	0.00
June 26	86	58	0.00
June 27	90	59	0.00
June 28	95	57	0.00
June 29	98	62	0.00
June 30	100	60	0.00

July 2021 Helena Weather

Day	High (°F)	Low (°F)	Precip. (inches)
July 1	100	60	0.00
July 2	98	63	0.00
July 3	101	67	0.00
July 4	95	62	0.00
July 5	86	63	0.00
July 6	98	59	0.00
July 7	90	60	0.01
July 8	92	57	0.00
July 9	86	59	0.00
July 10	97	55	0.00
July 11	96	59	0.00
July 12	94	54	0.00
July 13	82	60	0.07
July 14	92	51	0.00
July 15	97	58	0.00
July 16	92	67	0.01
July 17	94	57	0.00
July 18	102	59	0.00
July 19	91	66	0.00
July 20	95	65	0.00
July 21	94	62	0.00
July 22	94	57	0.00
July 23	91	57	0.00
July 24	93	54	0.00
July 25	97	59	0.00
July 26	100	59	0.00
July 27	97	67	0.00
July 28	92	72	0.00
July 29	96	69	0.00
July 30	98	61	0.00
July 31	98	64	0.00

August 2021 Helena Weather

Day	High (°F)	Low (°F)	Precip. (inches)
August 1	98	68	0.14
August 2	86	66	0.02
August 3	92	63	0.00
August 4	94	58	0.00
August 5	91	63	0.11
August 6	88	59	0.00
August 7	93	61	0.00
August 8	78	52	0.21
August 9	77	52	0.00
August 10	86	59	0.00
August 11	95	66	0.00
August 12	88	62	0.00
August 13	92	56	0.00
August 14	95	58	0.00
August 15	97	61	0.00
August 16	97	58	0.00
August 17	73	50	0.74
August 18	52	48	0.17
August 19	67	47	0.00
August 20	70	53	0.07
August 21	69	53	0.52
August 22	77	52	0.00
August 23	80	48	0.00
August 24	73	46	0.00
August 25	78	45	0.00
August 26	78	51	0.00
August 27	72	52	0.00
August 28	77	49	0.00
August 29	83	46	0.00
August 30	86	48	0.00
August 31	82	50	0.00

September 2021 Helena Weather

Day	High (°F)	Low (°F)	Precip. (inches)
September 1	78	45	0.00
September 2	73	49	0.00
September 3	79	44	0.00
September 4	84	45	0.00
September 5	90	50	0.00
September 6	87	48	0.00
September 7	88	51	0.00
September 8	92	51	0.00
September 9	86	57	0.00
September 10	85	57	0.02
September 11	76	55	0.01
September 12	81	45	0.00
September 13	77	50	0.00
September 14	78	44	0.00
September 15	81	46	0.00
September 16	66	40	0.00
September 17	81	36	0.00
September 18	88	48	0.00
September 19	64	49	0.00
September 20	61	45	0.00
September 21	75	34	0.00
September 22	82	40	0.00
September 23	73	52	0.00
September 24	79	40	0.00
September 25	86	44	0.00
September 26	87	45	0.00
September 27	86	45	0.00
September 28	64	44	0.00
September 29	65	42	0.00
September 30	71	30	0.00

October 2021 Helena Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
October 1	70	37	0.00	0.0
October 2	75	39	0.00	0.0
October 3	80	40	0.00	0.0
October 4	80	40	0.00	0.0
October 5	84	47	0.00	0.0
October 6	76	53	0.00	0.0
October 7	58	44	0.01	0.0
October 8	54	41	0.00	0.0
October 9	n/a	n/a	0.00	0.0
October 10	64	n/a	0.00	0.0
October 11	39	34	n/a	n/a
October 12	39	32	0.00	0.0
October 13	48	29	0.00	0.0
October 14	48	37	0.00	0.0
October 15	58	36	0.00	0.0
October 16	73	40	0.00	0.0
October 17	74	34	0.00	0.0
October 18	65	39	0.00	0.0
October 19	59	38	0.00	0.0
October 20	64	29	0.00	0.0
October 21	65	39	0.00	0.0
October 22	65	36	0.00	0.0
October 23	63	39	0.00	0.0
October 24	58	28	0.00	0.0
October 25	55	44	0.18	0.0
October 26	53	39	0.00	0.0
October 27	52	39	0.06	0.0
October 28	63	42	0.00	0.0
October 29	74	45	0.00	0.0
October 30	46	29	0.00	0.0
October 31	41	23	0.00	0.0

November 2021 Helena Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
November 1	43	16	0.00	0.0
November 2	48	23	0.00	0.0
November 3	57	28	0.00	0.0
November 4	57	32	0.00	0.0
November 5	64	35	0.00	0.0
November 6	54	30	0.00	0.0
November 7	46	24	0.00	0.0
November 8	47	15	0.00	0.0
November 9	43	17	0.00	0.0
November 10	45	32	0.00	0.0
November 11	38	24	0.00	0.0
November 12	56	30	0.00	0.0
November 13	56	40	0.00	0.0
November 14	66	37	0.00	0.0
November 15	69	46	0.08	0.0
November 16	48	25	0.01	0.0
November 17	37	19	0.00	0.0
November 18	41	18	0.00	0.0
November 19	49	31	0.02	0.0
November 20	45	31	0.00	0.0
November 21	45	27	0.00	0.0
November 22	54	26	0.00	0.0
November 23	43	16	0.08	0.5
November 24	41	21	0.00	0.0
November 25	48	28	0.00	0.0
November 26	57	31	0.00	0.0
November 27	54	38	0.01	0.0
November 28	66	46	0.00	0.0
November 29	56	39	0.00	0.0
November 30	55	31	0.00	0.0

December 2021 Helena Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
December 1	70	51	0.00	0.0
December 2	64	46	0.00	0.0
December 3	50	32	0.00	0.0
December 4	50	31	0.02	0.0
December 5	38	13	0.07	0.0
December 6	27	10	0.05	0.5
December 7	47	21	0.00	0.0
December 8	50	32	0.00	0.0
December 9	34	24	0.00	0.0
December 10	34	15	0.00	0.0
December 11	47	29	0.00	0.0
December 12	50	29	0.00	0.0
December 13	43	26	0.05	0.7
December 14	52	32	0.00	0.0
December 15	32	12	0.00	0.0
December 16	31	9	0.00	0.0
December 17	16	0	0.06	0.8
December 18	44	0	0.00	0.0
December 19	44	14	0.27	4.5
December 20	36	13	0.05	0.8
December 21	45	28	0.00	0.0
December 22	48	19	0.00	0.0
December 23	46	22	0.16	0.0
December 24	32	10	0.00	0.0
December 25	17	5	0.00	0.1
December 26	5	-9	0.07	1.6
December 27	1	-12	0.03	0.4
December 28	10	-11	0.01	0.0
December 29	6	-6	0.02	0.3
December 30	19	-4	0.03	0.5
December 31	7	-7	0.09	0.9

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Weather Station Details

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