Plattsburgh, NY: September

30 September 2026: September 2026 averaged 60.5°F in Plattsburgh, NY, the warmest September since 2025, tied 33rd warmest of 77 (with 1973, 1969 and 1953).

September 2026

Mean temperature: 60.5°F; Warmest since 2025; 33rd warmest of 77
Precipitation: 1.68 in; Driest since 2014; 15th driest of 77

A normal September in Plattsburgh, NY (1991 to 2020): a mean temperature of 59.8°F, between 57.6°F and 62.5°F in eight years of ten and 2.60 in of precipitation, between 1.30 in and 4.81 in in eight years of ten.

The mean temperature of every September in Plattsburgh, NY since 1946: 60.5°F in 2026; the highest is 67.9°F, in 1961.

Normal range, 57.6 to 62.5°F

Every year, ranked, as a table

Every September in Plattsburgh, NY from 1946 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	Days missing
2026	60.5	33	70.1	44	51	23	1.68	63	0
2025	61.5	24	72.5	22	50.4	28	2.27	46	2
2024	64.5	4	75.5	6	53.5	5	1.70	62	0
2023	62.5	12	72	24	53	6	2.73	37	0
2022	59.5	45	68.9	53	50.1	32	2.78	34	0
2021	61.7	22	72	24	51.5	16	3.25	24	0
2020	58	66	69.2	48	46.8	68	2.17	52	0
2019	59.6	44	70.4	40	48.9	54	2.81	30	0
2018	62.7	9	72.7	21	52.7	7	2.78	34	0
2017	62.2	17	73.5	15	50.9	25	2.45	44	0
2016	62.6	11	75	9	50.2	30	1.75	59	0
2015	63.8	6	75.4	7	52.2	11	3.46	21	0
2014	58.8	55	71	29	46.6	69	0.86	75	0
2013	58.2	63	69.1	50	47.2	66	2.91	27	0
2012	58.6	58	69.9	45	47.3	64	4.28	14	0
2011	61.6	23	71.1	28	52.1	13	5.23	6	0
2010	61	28	70.7	36	51.2	19	4.97	7	0
2009	57.4	70	68.9	53	45.8	73	2.60	41	0
2008	60.4	37	70.9	32	49.8	41	1.27	70	0
2007	61	28	73.6	14	48.4	58	1.83	56	0
2006	59	53	69.6	47	48.4	58	0.94	73	0
2005	62.5	12	73.8	12	51.6	15	2.18	50	1
2004	60.1	39	70.8	34	49.3	48	3.01	25	0
2003	61.4	25	73.1	18	49.6	47	2.35	45	0
2002	62.5	12	74.9	10	50	36	4.70	11	0
2001	59.4	47	70.6	37	48.1	61	1.32	69	0
2000	56.3	73	67.3	69	45.2	76	1.75	59	0
1999	61.8	21	73.2	17	50.3	29	6.62	2	0
1998	59.8	40	70.5	39	49.1	50	2.79	33	0
1994	59.4	47	68.6	58	50.1	32	2.01	54	0
1993	58.1	65	67.6	68	48.7	57	2.94	26	0
1992	57.8	67	68.5	60	46.6	69	2.20	49	2
1991	56	76	66.3	73	45.7	74	3.92	15	0
1990	58.2	63	66.2	74	49.7	45	2.15	53	1
1989	58.8	55	68.5	60	49.1	50	4.88	8	0
1988	56.8	71	67.9	65	45.6	75	0.95	72	0
1987	59.8	40	68.4	63	51.3	18	3.68	18	0
1986	55.7	77	64.7	76	47.6	62	2.91	27	2
1985	58.5	60	68.9	53	48.8	55	2.80	32	2
1983	64.2	5	76.3	3	52.2	11	2.70	38	0
1982	60.2	38	70.2	42	50.1	32	2.25	47	0
1981	56.3	73	63.7	77	48.8	55	5.26	5	0
1980	62.5	12	70.9	32	54	4	4.84	9	0
1979	59.5	45	69.1	50	50	36	5.75	3	0
1978	57.5	69	67.8	67	47.3	64	2.62	40	0
1977	59.7	43	66.8	72	52.5	9	9.41	1	0
1976	58.6	58	66.9	71	50.2	30	3.85	16	1
1975	59.2	50	67.3	69	51	23	4.79	10	0
1974	59.2	50	68.7	56	49.8	41	3.66	19	0
1973	60.5	33	68.6	58	52.4	10	4.69	12	0
1972	60.8	31	71.8	26	49.8	41	1.05	71	0
1971	65.4	3	75.9	4	55	2	1.53	66	0
1970	62	18	72.9	19	51.2	19	2.49	43	0
1969	60.5	33	70.2	42	50.7	26	2.84	29	0
1968	63.7	7	74.7	11	52.7	7	1.81	58	0
1967	60.7	32	72.3	23	49.1	50	1.40	68	0
1966	58.3	62	69	52	47.6	62	3.39	22	0
1965	61.1	27	70.6	37	51.7	14	2.81	30	0
1964	58.9	54	70.8	34	46.9	67	0.72	77	0
1963	56.6	72	69.2	48	44	77	1.61	64	0
1962	58.8	55	68.4	63	49.2	49	2.51	42	0
1961	67.9	1	78.5	1	57.2	1	2.18	50	0
1960	60.9	30	71.2	27	50.6	27	3.27	23	0
1959	66.1	2	77.5	2	54.6	3	0.84	76	0
1958	61.3	26	71	29	51.5	16	4.31	13	0
1957	62.3	16	73.4	16	51.2	19	3.61	20	0
1956	57.6	68	68.5	60	46.6	69	1.83	56	0
1955	59.4	47	70.4	40	48.3	60	1.88	55	1
1954	58.4	61	67.9	65	49	53	5.57	4	0
1953	60.5	33	71	29	49.9	39	3.73	17	0
1952	61.9	19	72.8	20	51.1	22	1.57	65	0
1951	59.8	40	69.7	46	49.9	39	1.75	59	0
1950	56.1	75	66.1	75	46.1	72	2.22	48	0
1949	59.2	50	68.7	56	49.7	45	1.53	66	0
1948	62.7	9	75.4	7	50	36	0.93	74	0
1947	61.9	19	73.7	13	50.1	32	2.75	36	0
1946	62.8	8	75.8	5	49.8	41	2.70	38	0

Warmest, coldest, wettest and driest

Warmest
Year	Mean, °F
1961	67.9
1959	66.1
1971	65.4
2024	64.5
1983	64.2
2015	63.8
1968	63.7
1946	62.8
2018	62.7
1948	62.7

Coldest
Year	Mean, °F
1986	55.7
1991	56
1950	56.1
2000	56.3
1981	56.3
1963	56.6
1988	56.8
2009	57.4
1978	57.5
1956	57.6

Wettest
Year	Precipitation, in
1977	9.41
1999	6.62
1979	5.75
1954	5.57
1981	5.26
2011	5.23
2010	4.97
1989	4.88
1980	4.84
1975	4.79

Driest
Year	Precipitation, in
1964	0.72
1959	0.84
2014	0.86
1948	0.93
2006	0.94
1988	0.95
1972	1.05
2008	1.27
2001	1.32
1967	1.40

The hottest, coldest and wettest days

Hottest day: 82°F; 3 September 2026
Coldest night: 36°F; 24 September 2026
Wettest day: 0.60 in; 9 September 2026

Every month, season and year

Months

Seasons

Years

Plattsburgh, NY the day's answers

All-time records

Every answer in words

September 2026 brought 1.68 in of precipitation in Plattsburgh, NY, the driest September since 2014, 15th driest of 77.
The hottest day of September 2026 in Plattsburgh, NY: 82°F on Thursday 3 September 2026.
The coldest night of September 2026 in Plattsburgh, NY: a low of 36°F on Thursday 24 September 2026.
The wettest day of September 2026 in Plattsburgh, NY: 0.60 in on Wednesday 9 September 2026.