Juneau Weather in 2018

Historical record of Juneau, Alaska weather for the year 2018 based on NOAA data.

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2018 Juneau Weather Extremes
Highest temperature	85 °F	June 20
Lowest temperature	4 °F	February 10
Highest daily low	60 °F	July 6
Lowest daily high	15 °F	January 10
Most daily precipitation	1.8 inches	October 14
Most daily snow	6.7 inches	March 7
Total annual precipitation	55.8 inches	-
Total annual snow	63.8 inches	-

What was the hottest temperature in Juneau in 2018?

The highest temperature recorded in Juneau, Alaska in 2018 was 85 °F which happened on June 20.

Highest Temperatures: All-Time By Year

Highest Temperatures in Juneau in 2018

Rank	Temperature	Date
1	85 °F	Jun 20
2	84 °F	Jul 5
2	84 °F	Jul 4
4	83 °F	Jul 3
5	81 °F	Jun 19
6	80 °F	Jul 23
7	79 °F	Jul 30
7	79 °F	Jul 24
7	79 °F	Jul 22
10	78 °F	Aug 5

What was the coldest temperature in Juneau in 2018?

The lowest temperature recorded in Juneau, Alaska in 2018 was 4 °F which happened 2 different times.

Lowest Temperatures: All-Time By Year

Lowest Temperatures in Juneau in 2018

Rank	Temperature	Date
1	4 °F	February 10
1	4 °F	February 9
3	5 °F	February 11
4	6 °F	February 18
4	6 °F	February 4
4	6 °F	February 3
7	8 °F	February 25
7	8 °F	February 17
7	8 °F	February 5
7	8 °F	January 28

January 2018 Juneau Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
January 1	40	18	0.51	3.7
January 2	41	38	1.29	0.0
January 3	40	37	0.55	0.0
January 4	37	33	1.30	0.0
January 5	37	33	0.28	0.0
January 6	39	36	0.48	0.0
January 7	39	30	0.00	0.0
January 8	30	21	0.00	0.0
January 9	24	11	0.00	0.0
January 10	15	9	0.00	0.0
January 11	17	9	0.00	0.0
January 12	27	15	0.31	4.8
January 13	44	27	0.45	0.6
January 14	52	42	0.03	0.0
January 15	53	33	0.03	0.0
January 16	45	34	0.19	0.0
January 17	41	26	0.00	0.0
January 18	33	22	0.00	0.0
January 19	35	30	0.06	0.0
January 20	34	31	0.00	0.0
January 21	32	25	0.00	0.0
January 22	34	27	0.10	2.8
January 23	32	18	0.00	0.0
January 24	32	19	0.08	1.6
January 25	25	14	0.00	0.0
January 26	31	13	0.00	0.0
January 27	30	13	0.00	0.0
January 28	31	8	0.02	0.9
January 29	25	21	0.02	0.5
January 30	28	16	0.00	0.0
January 31	25	20	0.00	0.0

February 2018 Juneau Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
February 1	21	17	0.00	0.0
February 2	20	13	0.00	0.0
February 3	23	6	0.00	0.0
February 4	30	6	0.00	0.0
February 5	27	8	0.00	0.0
February 6	28	17	0.07	0.1
February 7	31	16	0.05	0.4
February 8	30	9	0.00	0.0
February 9	28	4	0.00	0.0
February 10	28	4	0.00	0.0
February 11	29	5	0.00	0.0
February 12	33	27	0.52	2.0
February 13	38	26	0.20	0.2
February 14	32	20	0.00	0.0
February 15	33	28	0.17	2.1
February 16	30	15	0.00	0.0
February 17	32	8	0.00	0.0
February 18	30	6	0.00	0.0
February 19	33	16	0.00	0.0
February 20	33	14	0.01	0.5
February 21	36	19	0.00	0.0
February 22	35	18	0.32	0.3
February 23	38	23	0.25	0.5
February 24	31	20	0.33	4.1
February 25	32	8	0.02	0.3
February 26	39	11	0.20	2.2
February 27	36	32	0.14	1.9
February 28	34	27	0.07	1.6

March 2018 Juneau Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
March 1	32	20	0.00	0.0
March 2	30	11	0.00	0.0
March 3	36	11	0.00	0.0
March 4	36	15	0.00	0.0
March 5	32	12	0.00	0.0
March 6	31	10	0.00	0.6
March 7	32	29	0.25	6.7
March 8	36	31	0.04	1.0
March 9	39	31	0.16	1.2
March 10	39	33	0.27	0.1
March 11	42	33	0.53	0.0
March 12	38	33	0.01	0.0
March 13	44	33	0.00	0.0
March 14	43	34	0.05	0.0
March 15	47	32	0.00	0.0
March 16	44	32	0.04	0.0
March 17	43	29	0.00	0.0
March 18	41	27	0.03	0.0
March 19	38	34	0.27	0.0
March 20	39	30	0.22	0.1
March 21	40	26	0.05	0.5
March 22	39	32	0.00	0.0
March 23	42	24	0.00	0.0
March 24	39	21	0.00	0.0
March 25	34	23	0.00	0.0
March 26	33	18	0.29	4.9
March 27	38	27	0.26	4.3
March 28	41	32	0.06	0.0
March 29	49	28	0.00	0.0
March 30	41	23	0.00	0.0
March 31	40	22	0.00	0.0

April 2018 Juneau Weather

Day	High (°F)	Low (°F)	Precip. (inches)
April 1	42	19	0.00
April 2	37	29	0.00
April 3	38	22	0.00
April 4	41	20	0.00
April 5	46	21	0.00
April 6	48	30	0.00
April 7	57	26	0.00
April 8	57	26	0.08
April 9	50	37	0.05
April 10	54	34	0.07
April 11	58	36	0.00
April 12	53	41	0.00
April 13	55	33	0.00
April 14	50	31	0.05
April 15	53	28	0.00
April 16	47	26	0.00
April 17	50	25	0.00
April 18	42	34	0.38
April 19	45	38	0.38
April 20	48	31	0.09
April 21	46	29	0.03
April 22	42	40	0.31
April 23	43	40	1.02
April 24	44	40	0.09
April 25	45	41	0.06
April 26	47	41	0.44
April 27	51	34	0.00
April 28	51	37	0.00
April 29	52	32	0.00
April 30	43	40	0.10

May 2018 Juneau Weather

Day	High (°F)	Low (°F)	Precip. (inches)
May 1	45	41	0.55
May 2	50	34	0.14
May 3	49	31	0.03
May 4	48	42	0.29
May 5	49	46	0.37
May 6	58	41	0.00
May 7	67	39	0.00
May 8	67	37	0.00
May 9	69	39	0.04
May 10	62	50	0.01
May 11	54	48	0.24
May 12	58	48	0.23
May 13	53	47	0.31
May 14	49	43	0.09
May 15	55	35	0.01
May 16	60	33	0.00
May 17	66	36	0.00
May 18	74	40	0.00
May 19	66	39	0.00
May 20	54	48	0.26
May 21	55	48	0.70
May 22	53	43	0.81
May 23	57	41	0.06
May 24	54	43	0.03
May 25	50	45	0.25
May 26	49	44	0.50
May 27	53	43	0.22
May 28	48	43	0.03
May 29	55	44	0.10
May 30	61	41	0.00
May 31	64	37	0.00

June 2018 Juneau Weather

Day	High (°F)	Low (°F)	Precip. (inches)
June 1	64	39	0.00
June 2	58	41	0.07
June 3	62	36	0.00
June 4	50	46	0.64
June 5	62	44	0.00
June 6	61	45	0.01
June 7	59	42	0.06
June 8	61	43	0.04
June 9	57	42	0.44
June 10	52	44	0.22
June 11	58	47	0.13
June 12	64	47	0.00
June 13	67	48	0.16
June 14	52	48	0.11
June 15	63	48	0.00
June 16	56	49	0.15
June 17	61	53	0.05
June 18	74	54	0.00
June 19	81	50	0.00
June 20	85	55	0.00
June 21	73	57	0.00
June 22	68	54	0.00
June 23	62	49	0.01
June 24	61	51	0.02
June 25	64	49	0.00
June 26	59	49	0.09
June 27	61	49	0.01
June 28	61	50	0.00
June 29	58	51	0.83
June 30	62	50	0.03

July 2018 Juneau Weather

Day	High (°F)	Low (°F)	Precip. (inches)
July 1	63	49	0.01
July 2	70	50	0.00
July 3	83	48	0.00
July 4	84	50	0.00
July 5	84	49	0.00
July 6	74	60	0.00
July 7	65	57	0.00
July 8	67	56	0.00
July 9	67	55	0.00
July 10	61	54	0.45
July 11	54	51	0.33
July 12	67	50	0.02
July 13	72	47	0.00
July 14	60	51	0.16
July 15	54	50	1.04
July 16	59	50	0.68
July 17	63	50	0.01
July 18	60	48	0.01
July 19	67	50	0.11
July 20	73	48	0.00
July 21	77	50	0.00
July 22	79	51	0.00
July 23	80	50	0.00
July 24	79	51	0.00
July 25	77	51	0.00
July 26	74	56	0.00
July 27	73	58	0.00
July 28	74	54	0.00
July 29	77	51	0.00
July 30	79	53	0.00
July 31	76	55	0.00

August 2018 Juneau Weather

Day	High (°F)	Low (°F)	Precip. (inches)
August 1	70	53	0.00
August 2	62	55	0.03
August 3	62	57	0.12
August 4	72	53	0.00
August 5	78	48	0.00
August 6	64	58	0.17
August 7	62	57	0.39
August 8	61	56	0.90
August 9	62	53	0.87
August 10	62	53	0.12
August 11	68	49	0.00
August 12	59	53	0.12
August 13	59	55	0.32
August 14	63	52	0.22
August 15	63	50	0.01
August 16	64	50	0.01
August 17	65	49	0.15
August 18	68	46	0.00
August 19	69	43	0.00
August 20	73	45	0.00
August 21	71	46	0.30
August 22	57	54	0.31
August 23	57	53	0.06
August 24	55	53	0.33
August 25	58	50	0.46
August 26	66	46	0.00
August 27	57	54	0.33
August 28	60	52	1.08
August 29	67	50	0.00
August 30	58	52	0.19
August 31	58	52	0.52

September 2018 Juneau Weather

Day	High (°F)	Low (°F)	Precip. (inches)
September 1	57	49	0.25
September 2	64	46	0.00
September 3	66	40	0.00
September 4	65	39	0.00
September 5	69	40	0.00
September 6	67	44	0.00
September 7	60	41	0.06
September 8	66	43	0.00
September 9	68	47	0.00
September 10	72	41	0.00
September 11	72	39	0.00
September 12	66	39	0.00
September 13	57	38	0.01
September 14	63	35	0.00
September 15	60	33	0.00
September 16	59	29	0.00
September 17	58	29	0.00
September 18	59	30	0.00
September 19	59	30	0.00
September 20	61	30	0.00
September 21	60	30	0.00
September 22	54	30	0.10
September 23	54	48	0.39
September 24	54	49	0.06
September 25	54	51	0.97
September 26	53	45	0.41
September 27	53	44	0.02
September 28	53	39	0.01
September 29	65	35	0.00
September 30	63	31	0.00

October 2018 Juneau Weather

Day	High (°F)	Low (°F)	Precip. (inches)
October 1	63	34	0.00
October 2	54	28	0.00
October 3	53	26	0.00
October 4	50	36	0.04
October 5	45	42	0.57
October 6	49	45	0.31
October 7	50	42	0.34
October 8	54	31	0.53
October 9	49	30	0.00
October 10	45	31	0.43
October 11	49	44	0.14
October 12	50	42	0.02
October 13	51	46	0.64
October 14	52	49	1.75
October 15	54	47	1.04
October 16	53	46	1.02
October 17	53	46	0.19
October 18	52	45	0.39
October 19	53	46	0.94
October 20	52	47	0.03
October 21	53	45	0.06
October 22	50	44	0.83
October 23	54	45	0.14
October 24	54	46	0.02
October 25	51	44	0.40
October 26	47	38	0.21
October 27	51	32	0.00
October 28	53	30	0.00
October 29	48	39	0.00
October 30	48	39	0.37
October 31	44	30	0.01

November 2018 Juneau Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
November 1	40	29	0.12	0.7
November 2	40	31	0.01	0.1
November 3	35	31	0.20	2.4
November 4	36	33	0.09	0.0
November 5	38	23	0.00	0.0
November 6	37	21	0.00	0.0
November 7	36	20	0.06	0.0
November 8	44	36	0.33	0.0
November 9	43	38	0.45	0.0
November 10	44	41	0.05	0.0
November 11	46	42	0.50	0.0
November 12	48	39	0.00	0.0
November 13	48	41	0.92	0.0
November 14	45	41	0.14	0.0
November 15	43	35	0.05	0.0
November 16	38	28	0.07	0.0
November 17	46	37	1.16	0.0
November 18	50	45	0.39	0.0
November 19	51	45	0.20	0.0
November 20	47	42	0.43	0.0
November 21	44	36	0.02	0.0
November 22	40	32	0.01	0.0
November 23	38	26	0.00	0.0
November 24	39	26	0.08	0.0
November 25	46	38	0.05	0.0
November 26	48	41	0.24	0.0
November 27	43	39	0.00	0.0
November 28	40	36	0.02	0.0
November 29	41	35	0.00	0.0
November 30	38	31	0.00	0.0

December 2018 Juneau Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
December 1	31	20	0.00	0.0
December 2	29	19	0.00	0.0
December 3	33	18	0.03	0.4
December 4	35	32	0.03	0.1
December 5	36	33	0.01	0.0
December 6	37	33	0.00	0.0
December 7	41	30	0.00	0.0
December 8	48	39	0.19	0.0
December 9	47	37	0.58	0.0
December 10	42	37	1.19	0.0
December 11	40	33	0.59	0.2
December 12	37	32	0.02	0.1
December 13	35	32	0.30	0.0
December 14	34	17	0.00	n/a
December 15	36	15	0.00	0.0
December 16	40	34	0.11	0.0
December 17	43	35	0.25	0.0
December 18	43	30	0.31	0.0
December 19	43	33	0.14	0.0
December 20	36	30	0.29	3.9
December 21	34	27	0.00	0.0
December 22	34	22	0.00	0.0
December 23	34	26	0.03	0.5
December 24	32	29	0.20	3.3
December 25	33	28	0.01	0.0
December 26	37	30	0.00	0.0
December 27	39	32	0.35	1.6
December 28	40	29	0.00	0.0
December 29	34	24	0.00	0.0
December 30	38	28	0.00	0.0
December 31	41	37	1.00	0.0

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Weather Station Details

Years	Station	Coordinates
1960–2024	Juneau International Airport	location
1890–1959	Downtown Juneau	location