Juneau, AK: September

30 September 2026: September 2026 averaged 51.4°F in Juneau, AK, the warmest September since 2025, tied 11th warmest of 84 (with 1975).

September 2026

Mean temperature: 51.4°F; Warmest since 2025; 11th warmest of 84
Precipitation: 6.36 in; Driest since 2020; 32nd driest of 84

A normal September in Juneau, AK (1991 to 2020): a mean temperature of 50°F, between 48.8°F and 51.7°F in eight years of ten and 9.16 in of precipitation, between 6.16 in and 11.52 in in eight years of ten.

The mean temperature of every September in Juneau, AK since 1943: 51.4°F in 2026; the highest is 53.8°F, in 1995.

Normal range, 48.8 to 51.7°F

Every year, ranked, as a table

Every September in Juneau, AK from 1943 to 2026, ranked: the mean temperature, the mean high and the mean low from the warmest, the precipitation from the wettest; a year missing more than a tenth of its days is not ranked.

Year	Mean, °F	Rank	High, °F	Rank	Low, °F	Rank	Precipitation, in	Rank
2026	51.4	11	58.7	9	44.1	31	6.36	53
2025	52.5	3	58.3	13	46.7	5	12.84	4
2024	50.2	32	54.9	55	45.5	18	9.01	30
2023	50.9	18	55.4	45	46.3	9	13.64	2
2022	52	7	57.5	20	46.4	8	11.66	5
2021	50.6	24	55.4	45	45.7	15	9.95	23
2020	50.9	18	58.1	15	43.6	43	5.01	71
2019	51.7	9	59.4	5	43.9	34	6.78	52
2018	49.9	41	61	1	38.8	84	2.28	84
2017	51.3	13	57	28	45.6	16	8.30	39
2016	51.2	14	57.5	20	44.9	22	11.64	6
2015	49.2	54	54.8	58	43.5	44	11.51	8
2014	51.7	9	57.2	24	46.3	9	9.31	27
2013	51.9	8	57.4	23	46.3	9	7.53	45
2012	49.6	47	53.7	78	45.5	18	11.02	15
2011	48.8	64	54.4	68	43.3	47	8.58	33
2010	50.9	18	59.1	7	42.7	56	6.24	54
2009	49.8	42	55.7	38	43.8	39	8.92	31
2008	49.5	50	53.6	80	45.4	20	10.84	16
2007	49.7	43	54.5	64	44.9	22	9.09	29
2006	50	37	55.5	42	44.4	28	13.01	3
2005	51.1	17	55.1	51	47	3	9.92	24
2004	48.8	64	55	53	42.6	59	9.23	28
2003	48.8	64	54.1	72	43.5	44	11.41	11
2002	49.6	47	55.1	51	44	33	6.08	59
2001	50.3	29	55.7	38	44.9	22	8.37	37
2000	49	60	54.9	55	43	50	10.05	22
1999	49.7	43	53.7	78	45.6	16	10.62	20
1998	49.3	53	54.8	58	43.9	34	6.17	56
1997	53.3	2	60	4	46.5	6	8.26	40
1996	48.9	62	55.6	40	42.1	66	10.68	18
1995	53.8	1	60.4	2	47.2	2	7.43	46
1994	50.2	32	55.4	45	44.9	22	11.17	13
1993	51.2	14	57	28	45.4	20	8.44	36
1992	46.7	83	52.3	82	41.2	75	11.45	10
1991	50.3	29	54	73	46.5	6	15.14	1
1990	51.2	14	55.5	42	46.9	4	10.63	19
1989	52.4	4	58.5	10	46.3	9	7.29	49
1988	48.1	73	53.9	77	42.4	61	5.46	64
1987	50.1	36	54	73	46.1	14	8.92	31
1986	50.7	22	59.2	6	42.2	64	2.40	82
1985	48.9	62	55.6	40	42.2	64	4.81	75
1984	50	37	56.5	31	43.4	46	3.39	79
1983	48	74	54	73	42	67	6.13	58
1982	50.3	29	56.4	33	44.2	30	5.10	68
1981	49.2	54	55.2	49	43.1	48	11.61	7
1980	49	60	55.3	48	42.7	56	7.91	43
1979	50.9	18	57.5	20	44.4	28	4.89	74
1978	50.6	24	58.4	11	42.7	56	3.07	80
1977	50.5	26	57.2	24	43.8	39	5.57	62
1976	50.5	26	57	28	44.1	31	8.32	38
1975	51.4	11	56.5	31	46.2	13	7.25	50
1974	50	37	57.7	17	42.3	62	5.96	60
1973	48	74	56	37	39.9	79	4.95	72
1972	47	81	54	73	39.9	79	6.24	54
1971	48	74	54.5	64	41.6	70	5.36	67
1970	46.3	84	52	84	40.6	76	9.86	25
1969	47.4	79	54.6	63	40.1	77	5.44	65
1968	47.6	78	52.3	82	42.9	52	10.14	21
1967	50	37	56.1	36	43.9	34	8.53	34
1966	49.2	54	55.5	42	42.9	52	8.20	41
1965	50.2	32	58.8	8	41.7	68	2.34	83
1964	49.7	43	57.8	16	41.5	72	2.59	81
1963	52.2	6	57.1	26	47.3	1	8.05	42
1962	48.5	68	54.7	62	42.3	62	9.75	26
1961	47.7	77	56.3	34	39	83	7.01	51
1960	49.2	54	54.5	64	43.9	34	8.47	35
1959	48.2	70	54.8	58	41.6	70	5.51	63
1958	47.4	79	54.9	55	39.8	81	5.06	69
1957	52.4	4	60.2	3	44.5	27	5.61	61
1956	48.2	70	55	53	41.3	74	4.59	76
1955	47	81	54.4	68	39.5	82	5.39	66
1954	49.2	54	58.4	11	40	78	5.03	70
1953	49.1	59	54.3	71	43.9	34	6.17	56
1952	48.7	67	54.4	68	43	50	10.84	16
1951	50.5	26	58.2	14	42.9	52	3.85	77
1950	49.6	47	56.2	35	42.9	52	7.32	47
1949	50.7	22	57.7	17	43.8	39	7.80	44
1948	48.2	70	54.8	58	41.5	72	11.51	8
1947	49.5	50	55.2	49	43.8	39	11.09	14
1946	49.4	52	57.1	26	41.7	68	4.90	73
1945	48.4	69	53.6	80	43.1	48	7.31	48
1944	50.2	32	57.7	17	42.6	59	3.69	78
1943	49.7	43	54.5	64	44.8	26	11.24	12

Warmest, coldest, wettest and driest

Warmest
Year	Mean, °F
1995	53.8
1997	53.3
2025	52.5
1989	52.4
1957	52.4
1963	52.2
2022	52
2013	51.9
2019	51.7
2014	51.7

Coldest
Year	Mean, °F
1970	46.3
1992	46.7
1972	47
1955	47
1969	47.4
1958	47.4
1968	47.6
1961	47.7
1983	48
1973	48
More years share the last value

Wettest
Year	Precipitation, in
1991	15.14
2023	13.64
2006	13.01
2025	12.84
2022	11.66
2016	11.64
1981	11.61
2015	11.51
1948	11.51
1992	11.45

Driest
Year	Precipitation, in
2018	2.28
1965	2.34
1986	2.40
1964	2.59
1978	3.07
1984	3.39
1944	3.69
1951	3.85
1956	4.59
1985	4.81

The hottest, coldest and wettest days

Hottest day: 71°F; 3 September 2026
Coldest night: 32°F; 25 September 2026
Wettest day: 1.53 in; 27 September 2026

Every month, season and year

Months

Seasons

Years

Juneau, AK the day's answers

All-time records

Every answer in words

September 2026 brought 6.36 in of precipitation in Juneau, AK, the driest September since 2020, 32nd driest of 84.
The hottest day of September 2026 in Juneau, AK: 71°F on Thursday 3 September 2026.
The coldest night of September 2026 in Juneau, AK: a low of 32°F on Friday 25 September 2026.
The wettest day of September 2026 in Juneau, AK: 1.53 in on Sunday 27 September 2026.