Helena Weather in 2018

Historical record of Helena, Montana weather for the year 2018 based on NOAA data.

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2018 Helena Weather Extremes
Highest temperature	100 °F	August 10
Lowest temperature	-17 °F	January 2
Highest daily low	63 °F	July 17
Lowest daily high	3 °F	January 2
Most daily precipitation	1.0 inches	May 31
Most daily snow	5.7 inches	March 4
Total annual precipitation	12.9 inches	-
Total annual snow	37.1 inches	-

What was the hottest temperature in Helena in 2018?

The highest temperature recorded in Helena, Montana in 2018 was 100 °F which happened on August 10.

Highest Temperatures: All-Time By Year

Highest Temperatures in Helena in 2018

Rank	Temperature	Date
1	100 °F	Aug 10
2	99 °F	Aug 9
3	98 °F	Aug 11
4	96 °F	Aug 1
4	96 °F	Jul 9
4	96 °F	Jul 6
7	95 °F	Aug 8
7	95 °F	Jul 18
7	95 °F	Jul 13
10	94 °F	Jul 21
10	94 °F	Jul 20
10	94 °F	Jul 10

What was the coldest temperature in Helena in 2018?

The lowest temperature recorded in Helena, Montana in 2018 was -17 °F which happened on Jan 2.

Lowest Temperatures: All-Time By Year

Lowest Temperatures in Helena in 2018

Rank	Temperature	Date
1	-17 °F	January 2
2	-13 °F	February 21
2	-13 °F	February 20
2	-13 °F	January 1
5	-7 °F	February 10
6	-6 °F	February 19
6	-6 °F	February 13
6	-6 °F	January 3
9	-5 °F	February 23
9	-5 °F	February 12
9	-5 °F	January 4

January 2018 Helena Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
January 1	3	-13	0.00	0.0
January 2	3	-17	0.00	0.0
January 3	14	-6	0.00	0.0
January 4	12	-5	0.00	0.0
January 5	24	11	0.00	0.0
January 6	47	17	0.00	0.0
January 7	44	31	0.00	0.0
January 8	39	24	0.00	0.0
January 9	39	20	0.00	0.0
January 10	33	7	0.08	1.6
January 11	12	2	0.11	1.5
January 12	18	7	0.03	0.3
January 13	45	16	0.00	0.0
January 14	34	20	0.00	0.0
January 15	31	14	0.00	0.0
January 16	24	3	0.00	0.0
January 17	29	9	0.00	0.0
January 18	44	18	0.10	0.0
January 19	38	28	0.01	0.0
January 20	37	20	0.00	0.0
January 21	31	9	0.00	0.0
January 22	36	16	0.00	0.0
January 23	32	20	0.00	0.0
January 24	45	17	0.00	0.0
January 25	42	21	0.00	0.0
January 26	33	17	0.00	0.0
January 27	37	13	0.00	0.0
January 28	38	23	0.00	0.0
January 29	42	24	0.00	0.0
January 30	51	30	0.01	0.0
January 31	35	23	0.00	0.0

February 2018 Helena Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
February 1	30	15	0.00	0.0
February 2	49	23	0.00	0.0
February 3	45	1	0.22	1.5
February 4	19	0	0.16	2.5
February 5	21	13	0.14	0.8
February 6	25	10	0.08	0.8
February 7	46	16	0.00	0.0
February 8	48	4	0.05	0.5
February 9	9	1	0.19	2.0
February 10	14	-7	0.00	0.0
February 11	21	3	0.01	0.2
February 12	12	-5	0.00	0.0
February 13	29	-6	0.00	0.0
February 14	44	13	0.10	1.3
February 15	20	2	0.03	0.4
February 16	31	4	0.01	0.0
February 17	30	12	0.01	0.5
February 18	12	0	0.07	1.6
February 19	6	-6	0.02	0.4
February 20	8	-13	0.00	0.0
February 21	15	-13	0.00	0.0
February 22	20	-3	0.00	0.0
February 23	25	-5	0.00	0.0
February 24	32	18	0.00	0.0
February 25	40	25	0.00	0.0
February 26	35	19	0.00	0.0
February 27	31	19	0.00	0.0
February 28	35	11	0.00	0.0

March 2018 Helena Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
March 1	38	15	0.00	0.0
March 2	30	16	0.10	1.2
March 3	25	13	0.00	1.0
March 4	24	11	0.30	5.7
March 5	36	9	0.00	0.2
March 6	36	15	0.00	0.0
March 7	39	8	0.00	0.0
March 8	42	22	0.00	0.0
March 9	48	31	0.02	0.2
March 10	39	23	0.00	0.0
March 11	42	16	0.00	0.0
March 12	44	19	0.00	0.0
March 13	44	18	0.00	0.0
March 14	48	23	0.16	0.0
March 15	44	31	0.38	0.0
March 16	47	26	0.00	0.0
March 17	39	25	0.01	0.0
March 18	38	31	0.11	1.4
March 19	45	25	0.00	0.0
March 20	46	24	0.00	0.0
March 21	50	23	0.00	0.0
March 22	52	35	0.00	0.0
March 23	55	34	0.00	0.0
March 24	49	29	0.00	0.0
March 25	46	21	0.00	0.0
March 26	45	22	0.00	0.0
March 27	54	38	0.00	0.0
March 28	51	35	0.04	0.0
March 29	52	31	0.00	0.0
March 30	58	16	0.00	0.0
March 31	24	12	0.06	1.0

April 2018 Helena Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
April 1	40	14	0.08	0.3
April 2	33	13	0.12	1.5
April 3	40	10	0.00	0.0
April 4	51	27	0.00	0.0
April 5	41	18	0.18	1.5
April 6	29	14	0.17	1.5
April 7	43	20	0.06	0.0
April 8	54	32	0.00	0.0
April 9	57	38	0.00	0.0
April 10	57	29	0.00	0.0
April 11	59	37	0.05	0.0
April 12	41	31	0.44	1.3
April 13	50	32	0.00	0.0
April 14	59	35	0.00	0.0
April 15	61	32	0.06	0.0
April 16	51	37	0.23	0.0
April 17	50	34	0.00	0.0
April 18	53	26	0.00	0.0
April 19	62	30	0.00	0.0
April 20	65	33	0.00	0.0
April 21	67	31	0.00	0.0
April 22	64	39	0.00	0.0
April 23	48	34	0.03	0.0
April 24	62	27	0.00	0.0
April 25	67	33	0.00	0.0
April 26	72	32	0.00	0.0
April 27	79	39	0.00	0.0
April 28	85	43	0.00	0.0
April 29	59	41	0.14	0.0
April 30	53	39	0.05	0.0

May 2018 Helena Weather

Day	High (°F)	Low (°F)	Precip. (inches)
May 1	56	38	0.12
May 2	62	36	0.00
May 3	71	43	0.00
May 4	77	42	0.00
May 5	72	50	0.00
May 6	78	44	0.14
May 7	65	43	0.03
May 8	77	44	0.00
May 9	71	45	0.53
May 10	66	46	0.29
May 11	48	41	0.30
May 12	62	42	0.00
May 13	61	37	0.00
May 14	75	42	0.01
May 15	78	46	0.00
May 16	77	47	0.15
May 17	66	48	0.00
May 18	49	44	0.31
May 19	58	44	0.08
May 20	73	38	0.00
May 21	69	49	0.00
May 22	71	52	0.00
May 23	67	47	0.01
May 24	77	48	0.00
May 25	81	50	0.02
May 26	76	52	0.00
May 27	80	52	0.00
May 28	82	53	0.00
May 29	80	50	0.00
May 30	76	53	0.32
May 31	66	49	0.95

June 2018 Helena Weather

Day	High (°F)	Low (°F)	Precip. (inches)
June 1	61	49	0.05
June 2	75	44	0.00
June 3	81	48	0.00
June 4	82	55	0.00
June 5	79	54	0.00
June 6	81	47	0.00
June 7	77	56	0.48
June 8	80	50	0.00
June 9	92	51	0.00
June 10	60	46	0.20
June 11	58	39	0.00
June 12	72	42	0.00
June 13	86	40	0.00
June 14	72	52	0.01
June 15	70	49	0.00
June 16	57	49	0.73
June 17	60	51	0.00
June 18	62	53	0.87
June 19	64	53	0.50
June 20	74	54	0.01
June 21	73	53	0.26
June 22	79	61	0.00
June 23	67	53	0.06
June 24	75	54	0.02
June 25	85	51	0.05
June 26	75	56	0.00
June 27	82	43	0.00
June 28	81	51	0.11
June 29	69	55	0.01
June 30	75	50	0.00

July 2018 Helena Weather

Day	High (°F)	Low (°F)	Precip. (inches)
July 1	76	56	0.00
July 2	74	55	0.00
July 3	61	46	0.00
July 4	78	39	0.00
July 5	91	49	0.00
July 6	96	58	0.00
July 7	91	56	0.00
July 8	89	53	0.00
July 9	96	57	0.00
July 10	94	62	0.00
July 11	85	59	0.00
July 12	90	58	0.00
July 13	95	57	0.00
July 14	76	58	0.00
July 15	90	51	0.00
July 16	93	54	0.00
July 17	81	63	0.00
July 18	95	53	0.00
July 19	91	62	0.00
July 20	94	56	0.00
July 21	94	60	0.00
July 22	87	56	0.00
July 23	91	52	0.00
July 24	88	56	0.00
July 25	86	57	0.00
July 26	89	57	0.00
July 27	79	56	0.01
July 28	83	50	0.00
July 29	86	52	0.00
July 30	90	49	0.00
July 31	89	55	0.00

August 2018 Helena Weather

Day	High (°F)	Low (°F)	Precip. (inches)
August 1	96	58	0.00
August 2	93	61	0.00
August 3	88	56	0.00
August 4	84	54	0.00
August 5	79	53	0.00
August 6	86	48	0.00
August 7	90	53	0.00
August 8	95	56	0.00
August 9	99	58	0.00
August 10	100	58	0.00
August 11	98	59	0.00
August 12	91	57	0.00
August 13	78	56	0.00
August 14	88	52	0.00
August 15	93	53	0.00
August 16	92	52	0.00
August 17	91	57	0.05
August 18	81	60	0.00
August 19	85	51	0.00
August 20	63	49	0.27
August 21	62	50	0.00
August 22	76	45	0.00
August 23	85	54	0.00
August 24	82	50	0.00
August 25	80	46	0.00
August 26	68	54	0.00
August 27	54	46	0.08
August 28	71	40	0.00
August 29	82	44	0.00
August 30	82	48	0.00
August 31	77	53	0.00

September 2018 Helena Weather

Day	High (°F)	Low (°F)	Precip. (inches)
September 1	78	44	0.00
September 2	82	43	0.00
September 3	85	44	0.00
September 4	71	46	0.00
September 5	82	44	0.00
September 6	88	48	0.00
September 7	88	54	0.01
September 8	84	53	0.00
September 9	80	57	0.00
September 10	86	45	0.00
September 11	75	48	0.00
September 12	68	47	0.00
September 13	64	43	0.04
September 14	70	35	0.00
September 15	72	44	0.27
September 16	75	45	0.00
September 17	73	42	0.00
September 18	71	42	0.00
September 19	52	47	0.26
September 20	66	43	0.01
September 21	73	37	0.00
September 22	78	43	0.00
September 23	65	50	0.05
September 24	59	40	0.00
September 25	65	35	0.00
September 26	70	40	0.00
September 27	60	40	0.02
September 28	52	39	0.02
September 29	45	35	0.00
September 30	40	33	0.08

October 2018 Helena Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
October 1	64	33	0.00	0.0
October 2	52	41	0.05	0.0
October 3	55	31	0.04	0.0
October 4	44	31	0.04	0.0
October 5	55	41	0.00	0.0
October 6	49	39	0.03	0.0
October 7	57	37	0.00	0.0
October 8	56	30	0.00	0.0
October 9	38	32	0.30	0.2
October 10	38	32	0.00	0.2
October 11	51	33	0.00	0.0
October 12	60	40	0.00	0.0
October 13	41	29	0.06	0.0
October 14	46	28	0.00	0.0
October 15	56	29	0.00	0.0
October 16	59	29	0.00	0.0
October 17	64	25	0.00	0.0
October 18	69	29	0.00	0.0
October 19	68	33	0.00	0.0
October 20	70	31	0.00	0.0
October 21	65	32	0.00	0.0
October 22	64	33	0.00	0.0
October 23	61	31	0.00	0.0
October 24	65	33	0.00	0.0
October 25	61	46	0.00	0.0
October 26	64	43	0.00	0.0
October 27	61	35	0.00	0.0
October 28	59	33	0.01	0.0
October 29	53	38	0.00	0.0
October 30	49	35	0.00	0.0
October 31	45	30	0.00	0.0

November 2018 Helena Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
November 1	53	43	0.00	0.0
November 2	58	39	0.01	0.0
November 3	49	34	0.02	0.0
November 4	55	41	0.00	0.0
November 5	48	31	0.01	0.0
November 6	34	25	0.05	0.4
November 7	26	16	0.03	0.9
November 8	38	10	0.00	0.0
November 9	36	17	0.00	0.0
November 10	40	22	0.00	0.0
November 11	34	19	0.01	0.0
November 12	35	12	0.00	0.0
November 13	43	17	0.00	0.0
November 14	51	19	0.00	0.0
November 15	53	41	0.00	0.0
November 16	50	18	0.01	0.0
November 17	30	17	0.00	0.0
November 18	45	12	0.00	0.0
November 19	49	18	0.00	0.0
November 20	48	20	0.00	0.0
November 21	43	16	0.00	0.0
November 22	41	23	0.00	0.0
November 23	49	29	0.01	0.1
November 24	34	25	0.05	0.5
November 25	41	18	0.00	0.0
November 26	40	19	0.00	0.0
November 27	46	29	0.00	0.0
November 28	47	30	0.00	0.0
November 29	44	22	0.00	0.0
November 30	32	15	0.02	0.1

December 2018 Helena Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
December 1	36	20	0.02	0.3
December 2	30	22	0.00	0.0
December 3	31	26	0.00	0.0
December 4	35	26	0.00	0.0
December 5	27	8	0.01	0.1
December 6	23	1	0.00	0.0
December 7	25	1	0.00	0.0
December 8	36	5	0.00	0.0
December 9	34	13	0.00	0.0
December 10	38	15	0.00	0.0
December 11	43	30	0.00	0.0
December 12	44	32	0.00	0.0
December 13	44	27	0.00	0.0
December 14	41	23	0.00	0.0
December 15	48	21	0.00	0.0
December 16	46	19	0.00	0.0
December 17	44	24	0.00	0.0
December 18	50	23	0.00	0.0
December 19	44	34	0.00	0.0
December 20	47	29	0.00	0.0
December 21	45	28	0.00	0.0
December 22	35	16	0.00	0.0
December 23	41	17	0.00	0.0
December 24	36	28	0.03	0.3
December 25	30	25	0.00	0.0
December 26	30	8	0.00	0.0
December 27	29	21	0.03	0.3
December 28	31	19	0.00	0.0
December 29	45	23	0.00	0.0
December 30	45	11	0.07	1.0
December 31	15	-4	0.00	0.0

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Weather Station Details

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