Great Falls Weather in 2015

Historical record of Great Falls, Montana weather for the year 2015 based on NOAA data.

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2015 Great Falls Weather Extremes
Highest temperature	100 °F	August 14
Lowest temperature	-18 °F	January 9
Highest daily low	68 °F	August 13
Lowest daily high	1 °F	January 4
Most daily precipitation	2.3 inches	October 3
Most daily snow	8.2 inches	December 14
Total annual precipitation	15.7 inches	-
Total annual snow	55.7 inches	-

What was the hottest temperature in Great Falls in 2015?

The highest temperature recorded in Great Falls, Montana in 2015 was 100 °F which happened on August 14.

Highest Temperatures: All-Time By Year

Highest Temperatures in Great Falls in 2015

Rank	Temperature	Date
1	100 °F	Aug 14
2	99 °F	Aug 13
2	99 °F	Jun 28
4	98 °F	Jun 27
5	97 °F	Aug 11
5	97 °F	Aug 1
5	97 °F	Jun 29
8	96 °F	Aug 3
9	95 °F	Jul 3
10	94 °F	Aug 24
10	94 °F	Aug 10
10	94 °F	Jul 21
10	94 °F	Jun 26

What was the coldest temperature in Great Falls in 2015?

The lowest temperature recorded in Great Falls, Montana in 2015 was -18 °F which happened on Jan 9.

Lowest Temperatures: All-Time By Year

Lowest Temperatures in Great Falls in 2015

Rank	Temperature	Date
1	-18 °F	January 9
2	-12 °F	January 3
3	-11 °F	January 8
4	-7 °F	November 26
4	-7 °F	November 25
4	-7 °F	February 1
7	-6 °F	March 3
8	-5 °F	December 25
8	-5 °F	January 4
10	-3 °F	December 30
10	-3 °F	December 26
10	-3 °F	February 22
10	-3 °F	January 12

January 2015 Great Falls Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
January 1	27	18	0.00	0.0
January 2	37	3	0.15	2.7
January 3	3	-12	0.05	1.7
January 4	1	-5	0.12	1.1
January 5	37	1	0.37	4.1
January 6	9	5	0.03	0.3
January 7	36	0	0.00	0.0
January 8	33	-11	0.15	3.4
January 9	32	-18	0.00	0.0
January 10	33	14	0.00	0.0
January 11	22	3	0.03	0.7
January 12	14	-3	0.00	0.0
January 13	26	-2	0.00	0.0
January 14	37	24	0.00	0.0
January 15	43	31	0.00	0.0
January 16	41	29	0.00	0.0
January 17	40	29	0.00	0.0
January 18	44	33	0.00	0.0
January 19	40	26	0.00	0.0
January 20	40	27	0.00	0.0
January 21	35	18	0.00	0.0
January 22	43	30	0.00	0.0
January 23	44	31	0.00	0.0
January 24	53	42	0.00	0.0
January 25	59	43	0.00	0.0
January 26	67	48	0.00	0.0
January 27	64	46	0.00	0.0
January 28	49	27	0.00	0.0
January 29	52	22	0.00	0.0
January 30	50	22	0.00	0.0
January 31	35	-2	0.11	2.9

February 2015 Great Falls Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
February 1	35	-7	0.00	0.0
February 2	39	12	0.00	0.0
February 3	24	11	0.01	0.1
February 4	38	11	0.00	0.0
February 5	56	36	0.00	0.0
February 6	65	47	0.00	0.0
February 7	56	41	0.00	0.0
February 8	57	38	0.00	0.0
February 9	53	34	0.09	0.0
February 10	45	21	0.02	0.1
February 11	31	19	0.00	0.0
February 12	58	30	0.00	0.0
February 13	64	35	0.00	0.0
February 14	54	34	0.00	0.0
February 15	40	27	0.08	1.1
February 16	35	17	0.04	0.5
February 17	39	18	0.01	0.2
February 18	53	21	0.00	0.0
February 19	53	35	0.00	0.0
February 20	42	24	0.04	0.1
February 21	25	-2	0.05	1.0
February 22	21	-3	0.00	0.0
February 23	40	13	0.00	0.0
February 24	45	32	0.00	0.0
February 25	35	13	0.03	1.5
February 26	16	3	0.01	0.3
February 27	20	2	0.00	0.4
February 28	24	10	0.01	0.5

March 2015 Great Falls Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
March 1	36	9	0.00	0.0
March 2	33	12	0.01	0.1
March 3	19	-6	0.00	0.0
March 4	36	0	0.00	0.0
March 5	51	26	0.00	0.0
March 6	60	29	0.00	0.0
March 7	53	26	0.00	0.0
March 8	57	26	0.00	0.0
March 9	62	34	0.00	0.0
March 10	65	29	0.00	0.0
March 11	62	42	0.00	0.0
March 12	63	36	0.00	0.0
March 13	66	32	0.00	0.0
March 14	71	52	0.00	0.0
March 15	63	42	0.00	0.0
March 16	54	29	0.00	0.0
March 17	39	29	0.05	0.0
March 18	51	31	0.00	0.0
March 19	62	31	0.00	0.0
March 20	66	43	0.00	0.0
March 21	65	37	0.00	0.0
March 22	62	32	0.00	0.0
March 23	55	26	0.00	0.0
March 24	49	29	0.03	0.7
March 25	50	28	0.00	0.0
March 26	67	43	0.00	0.0
March 27	74	38	0.00	0.0
March 28	62	39	0.00	0.0
March 29	60	37	0.00	0.0
March 30	70	41	0.00	0.0
March 31	76	40	0.00	0.0

April 2015 Great Falls Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
April 1	51	32	0.00	0.0
April 2	46	25	0.00	0.0
April 3	48	20	0.00	0.0
April 4	54	22	0.00	0.0
April 5	41	22	0.01	0.0
April 6	43	29	0.00	0.1
April 7	55	24	0.00	0.0
April 8	56	20	0.00	0.0
April 9	60	24	0.00	0.0
April 10	63	37	0.00	0.0
April 11	61	28	0.00	0.0
April 12	49	24	0.00	0.0
April 13	68	32	0.00	0.0
April 14	66	32	0.39	0.4
April 15	52	32	0.13	0.3
April 16	63	31	0.00	0.0
April 17	68	31	0.00	0.0
April 18	48	33	0.22	0.0
April 19	54	27	0.00	0.0
April 20	66	26	0.00	0.0
April 21	68	29	0.00	0.0
April 22	73	34	0.00	0.0
April 23	65	32	0.00	0.0
April 24	53	40	0.14	0.0
April 25	55	35	0.00	0.0
April 26	47	29	0.00	0.0
April 27	64	28	0.00	0.0
April 28	76	38	0.00	0.0
April 29	77	46	0.00	0.0
April 30	65	35	0.00	0.0

May 2015 Great Falls Weather

Day	High (°F)	Low (°F)	Precip. (inches)
May 1	73	42	0.00
May 2	68	44	0.00
May 3	65	30	0.00
May 4	76	33	0.00
May 5	73	41	0.00
May 6	58	38	0.00
May 7	53	27	0.00
May 8	55	28	0.01
May 9	58	25	0.00
May 10	61	27	0.00
May 11	61	31	0.00
May 12	55	40	0.00
May 13	57	42	0.05
May 14	52	42	0.16
May 15	50	45	0.10
May 16	47	41	1.21
May 17	43	36	0.27
May 18	54	32	0.00
May 19	62	40	0.00
May 20	67	37	0.00
May 21	71	37	0.00
May 22	71	41	0.00
May 23	63	48	0.40
May 24	65	39	0.00
May 25	72	40	0.25
May 26	66	50	0.31
May 27	66	46	0.01
May 28	57	45	0.26
May 29	68	45	0.00
May 30	70	47	0.39
May 31	80	47	0.00

June 2015 Great Falls Weather

Day	High (°F)	Low (°F)	Precip. (inches)
June 1	76	52	0.20
June 2	69	48	0.16
June 3	69	44	0.03
June 4	73	46	0.00
June 5	77	46	0.00
June 6	81	48	0.00
June 7	84	52	0.00
June 8	90	58	0.00
June 9	91	50	0.00
June 10	79	54	0.01
June 11	85	53	0.00
June 12	80	44	0.00
June 13	74	37	0.00
June 14	66	41	0.00
June 15	68	36	0.00
June 16	78	42	0.00
June 17	79	49	0.00
June 18	82	45	0.00
June 19	83	49	0.00
June 20	79	44	0.00
June 21	74	44	0.00
June 22	78	41	0.00
June 23	83	44	0.00
June 24	83	45	0.00
June 25	87	57	0.00
June 26	94	50	0.00
June 27	98	56	0.00
June 28	99	62	0.00
June 29	97	59	0.04
June 30	93	65	0.00

July 2015 Great Falls Weather

Day	High (°F)	Low (°F)	Precip. (inches)
July 1	90	54	0.00
July 2	85	54	0.00
July 3	95	58	0.00
July 4	90	59	0.00
July 5	59	49	0.39
July 6	74	46	0.00
July 7	68	49	0.01
July 8	83	45	0.00
July 9	90	54	0.00
July 10	92	55	0.00
July 11	77	63	0.01
July 12	83	56	0.00
July 13	84	50	0.01
July 14	84	55	0.00
July 15	86	51	0.00
July 16	78	48	0.00
July 17	71	41	0.03
July 18	79	52	0.00
July 19	83	54	0.00
July 20	92	50	0.00
July 21	94	54	0.00
July 22	86	52	0.01
July 23	82	58	0.00
July 24	90	58	0.00
July 25	88	51	0.07
July 26	85	53	0.15
July 27	58	50	0.72
July 28	76	50	0.03
July 29	83	50	0.00
July 30	88	47	0.00
July 31	93	50	0.00

August 2015 Great Falls Weather

Day	High (°F)	Low (°F)	Precip. (inches)
August 1	97	51	0.00
August 2	88	52	0.00
August 3	96	55	0.00
August 4	87	60	0.00
August 5	80	49	0.04
August 6	78	49	0.00
August 7	80	43	0.00
August 8	76	45	0.00
August 9	89	54	0.00
August 10	94	56	0.00
August 11	97	58	0.00
August 12	92	56	0.00
August 13	99	68	0.00
August 14	100	62	0.16
August 15	79	51	0.00
August 16	71	50	0.00
August 17	68	46	0.00
August 18	68	44	0.04
August 19	85	46	0.00
August 20	88	56	0.00
August 21	85	39	0.12
August 22	65	40	0.00
August 23	82	39	0.00
August 24	94	50	0.00
August 25	91	51	0.00
August 26	91	51	0.00
August 27	90	56	0.00
August 28	93	57	0.00
August 29	92	60	0.02
August 30	81	54	0.00
August 31	77	51	0.00

September 2015 Great Falls Weather

Day	High (°F)	Low (°F)	Precip. (inches)
September 1	84	56	0.00
September 2	86	49	0.00
September 3	63	49	0.44
September 4	52	48	0.66
September 5	53	40	0.68
September 6	64	43	0.00
September 7	65	42	0.00
September 8	71	38	0.00
September 9	78	46	0.00
September 10	75	45	0.00
September 11	80	43	0.00
September 12	88	47	0.00
September 13	75	49	0.00
September 14	74	47	0.03
September 15	63	43	0.32
September 16	49	38	0.41
September 17	64	33	0.00
September 18	66	43	0.00
September 19	74	44	0.00
September 20	77	53	0.00
September 21	65	48	0.00
September 22	73	36	0.00
September 23	82	47	0.00
September 24	83	42	0.00
September 25	89	48	0.00
September 26	81	47	0.00
September 27	71	41	0.00
September 28	64	29	0.00
September 29	77	30	0.00
September 30	79	36	0.00

October 2015 Great Falls Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
October 1	63	44	0.00	0.0
October 2	64	47	0.00	0.0
October 3	52	32	2.28	2.7
October 4	38	31	0.10	1.0
October 5	62	25	0.00	0.0
October 6	68	32	0.00	0.0
October 7	66	49	0.02	0.0
October 8	68	44	0.00	0.0
October 9	80	52	0.00	0.0
October 10	81	56	0.00	0.0
October 11	62	38	0.00	0.0
October 12	72	42	0.00	0.0
October 13	72	42	0.00	0.0
October 14	67	35	0.00	0.0
October 15	58	26	0.00	0.0
October 16	60	29	0.00	0.0
October 17	67	30	0.00	0.0
October 18	73	38	0.00	0.0
October 19	61	36	0.00	0.0
October 20	53	40	0.01	0.0
October 21	65	38	0.00	0.0
October 22	65	35	0.00	0.0
October 23	57	29	0.00	0.0
October 24	58	27	0.00	0.0
October 25	48	28	0.00	0.0
October 26	53	31	0.01	0.0
October 27	43	27	0.02	0.0
October 28	56	22	0.00	0.0
October 29	54	28	0.00	0.0
October 30	56	36	0.00	0.0
October 31	62	41	0.04	0.0

November 2015 Great Falls Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
November 1	60	37	0.00	0.0
November 2	51	32	0.00	0.0
November 3	38	31	0.42	2.0
November 4	36	27	0.17	1.1
November 5	38	25	0.00	0.0
November 6	41	20	0.00	0.0
November 7	54	34	0.00	0.0
November 8	58	39	0.00	0.0
November 9	45	29	0.11	0.8
November 10	37	26	0.03	0.7
November 11	43	26	0.00	0.0
November 12	42	23	0.00	0.0
November 13	56	40	0.00	0.0
November 14	60	43	0.00	0.0
November 15	56	39	0.00	0.0
November 16	44	23	0.27	0.0
November 17	52	27	0.00	0.0
November 18	50	17	0.09	0.4
November 19	37	16	0.00	0.0
November 20	23	12	0.15	2.4
November 21	37	19	0.00	0.0
November 22	46	32	0.00	0.0
November 23	51	26	0.00	0.0
November 24	41	13	0.26	3.9
November 25	13	-7	0.05	0.9
November 26	17	-7	0.00	0.0
November 27	22	5	0.00	0.0
November 28	23	4	0.00	0.0
November 29	25	7	0.00	0.0
November 30	28	6	0.00	0.0

December 2015 Great Falls Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
December 1	36	24	0.00	0.0
December 2	37	26	0.00	0.0
December 3	45	31	0.00	0.0
December 4	49	34	0.00	0.0
December 5	44	30	0.00	0.0
December 6	52	35	0.00	0.0
December 7	50	38	0.00	0.0
December 8	55	39	0.00	0.0
December 9	57	36	0.00	0.0
December 10	42	29	0.04	0.2
December 11	45	21	0.00	0.0
December 12	41	18	0.00	0.0
December 13	46	32	0.00	0.0
December 14	32	15	0.77	8.2
December 15	28	5	0.00	0.0
December 16	27	6	0.11	4.2
December 17	22	2	0.00	0.0
December 18	40	15	0.00	0.2
December 19	40	22	0.03	0.2
December 20	32	16	0.00	0.0
December 21	33	23	0.00	0.0
December 22	29	11	0.00	0.0
December 23	26	9	0.00	0.0
December 24	29	7	0.00	0.0
December 25	12	-5	0.00	0.1
December 26	23	-3	0.00	0.0
December 27	29	19	0.00	0.0
December 28	26	14	0.06	0.6
December 29	15	5	0.05	1.0
December 30	20	-3	0.00	0.0
December 31	25	13	0.01	0.8

Next Year >

Weather Station Details

Years	Station	Coordinates
1937–2024	Great Falls International Airport	location
1892–1937	Great Falls 16th Street	location