Klamath Falls, OR

28 September 2026: September 2026 so far averaged 54.4°F in Klamath Falls, OR, the coldest 1 to 28 September since 2005, 6th coldest of 119.

Monday 28 September 2026

High: 72°F; Coldest since 2023; 45th coldest of 121
Low: 31°F; Coldest since 2023; 7th coldest of 121

No measurable precipitation in Klamath Falls, OR for 12 days to Monday 28 September 2026.

Every 28 September low in Klamath Falls, OR since 1898: 31°F in 2026; the lowest is 25°F, in 2023.

Normal range, 34 to 46.5°F

Every year as a table

Every 28 September high in Klamath Falls, OR since 1898: 72°F in 2026; the highest is 91°F, in 1994.

Year	High, °F	Low, °F
2026	72	31
2025	77	40
2024	87	38
2023	65	25
2022	73	46
2021	53	34
2020	84	42
2019	49	34
2018	84	36
2017	79	34
2016	85	40
2015	81	38
2014	65	51
2013	66	38
2012	82	41
2011	75	37
2010	87	39
2009	78	38
2008	85	37
2007	52	30
2006	83	37
2005	75	35
2004	80	43
2003	87	45
2002	67	39
2001	65	31
2000	74	39
1997	76	45
1996	86	41
1995	67	44
1994	91	56
1993	83	42
1992	87	37
1991	79	50
1990	80	56
1989	78	49
1988	74	34
1987	79	48
1986	50	31
1985	68	41
1984	73	44
1981	61	32
1980	76	39
1979	79	42
1977	60	49
1976	74	47
1975	82	42
1974	78	34
1973	82	43
1972	62	40
1971	55	36
1970	80	34
1969	75	40
1968	75	36
1967	88	45
1966	80	42
1965	60	33
1964	74	34
1963	88	46
1962	55	44
1961	73	45
1960	80	40
1959	55	29
1958	81	51
1957	57	40
1956	65	39
1955	73	41
1954	70	34
1953	63	43
1952	80	49
1951	76	45
1950	64	40
1949	61	48
1948	66	36
1947	75	41
1946	72	43
1945	76	37
1944	79	46
1943	75	42
1942	72	46
1941	70	38
1940	53	42
1939	70	41
1938	65	46
1937	70	50
1936	79	43
1935	74	45
1934	80	37
1933	80	40
1932	80	52
1931	64	34
1930	68	39
1929	58	33
1928	67	33
1927	57	44
1926	72	34
1925	57	43
1924	79	41
1923	66	37
1922	62	27
1921	73	48
1920	78	38
1919	66	38
1918	76	50
1917	80	41
1916	82	37
1915	68	36
1914	76	40
1913	76	46
1912	73	50
1911	68	33
1910	73	40
1909	72	43
1908	79	42
1907	76	33
1906	83	41
1905	56	27
1902	80	30
1901	63	34
1899	87	53
1898	56	32

The forecast

Date	High	Low
6 October	86°FRecord 89°F, 1907	42°FRecord 23°F, 2007, 1927
7 October	Record 89°F, 1907	Record 23°F, 1959

The month and the year

Every year's 1 to 28 September in Klamath Falls, OR, ranked by its mean temperature: September 2026 so far is the 114th warmest of 119.

Every year, ranked, as a table

Rank	Year	Mean, °F
1	1943	66.5
2	1899	66.3
3	1991	66.1
4	1974	65.7
5	1975	65.6
6	1902	64.8
7	1995	64.6
8	1932	64.5
9	1953	64.4
10	1951	64.2
11	1967	63.4
11	1935	63.4
13	1990	63.1
13	1944	63.1
15	1937	62.9
16	1987	62.8
17	1979	62.7
18	1938	62.6
18	1918	62.6
20	1942	62.4
21	1962	62.3
22	1963	62.1
22	1939	62.1
24	1981	62
24	1950	62
26	2020	61.9
26	1923	61.9
28	2024	61.8
28	1949	61.8
28	1922	61.8
28	1905	61.8
32	2022	61.7
32	2009	61.7
32	1993	61.7
35	1960	61.6
36	1898	61.4
37	2014	61.3
37	1976	61.3
37	1969	61.3
37	1916	61.3
37	1906	61.3
42	2012	61.2
42	1947	61.2
44	2011	61.1
44	1934	61.1
46	1992	61
46	1957	61
46	1936	61
49	1997	60.9
50	1913	60.8
51	1989	60.7
51	1909	60.7
53	2025	60.6
54	2003	60.4
54	1988	60.4
56	1983	60.3
57	1966	60.2
58	1980	60.1
58	1919	60.1
60	1928	60
61	1955	59.9
61	1945	59.9
61	1917	59.9
64	1968	59.7
65	2017	59.5
66	1973	59.3
67	2008	59.1
67	1908	59.1
69	1956	59
70	1996	58.9
71	2021	58.7
72	2002	58.5
72	1984	58.5
72	1977	58.5
75	1924	58.4
76	1946	58.3
76	1940	58.3
78	1930	58.2
79	1931	58.1
80	1948	57.9
81	1933	57.8
82	2015	57.7
82	1915	57.7
84	1920	57.6
85	2006	57.5
85	2001	57.5
85	1921	57.5
88	1954	57.4
89	2013	57.3
89	1929	57.3
91	1958	56.8
92	2010	56.7
92	1907	56.7
94	2019	56.6
94	1964	56.6
96	1971	56.5
97	1972	56.4
98	1961	56.3
99	2023	56.2
99	1959	56.2
101	2018	56.1
102	2016	55.9
103	2007	55.8
103	1970	55.8
103	1965	55.8
106	1925	55.7
107	2000	55.3
108	2004	55
108	1901	55
110	1926	54.9
110	1910	54.9
112	1912	54.7
113	1941	54.5
114	2026	54.4
115	1985	54.1
116	2005	54
117	1986	53.8
118	1927	53.5
119	1911	53.3

Every day as a table

Daily highs and lows in Klamath Falls, OR, 1 to 28 September 2026, with each date's record range and its 1991 to 2020 normal range.

Day	High, °F	Low, °F	Record high	Year	Record low	Year	Normal high	Normal low
1 September 2026	73	37	97	1902	30	1973	83	43
2 September 2026	57	42	99	1988	29	1964	85	45
3 September 2026	52	40	100	1988	32	2021	83.5	44
4 September 2026	61	32	96	2020	32	1912	81	42
5 September 2026	63	35	98	2017	29	2015	79.5	41
6 September 2026	61	40	99	2022	25	1973	83	44
7 September 2026	69	31	98	1902	31	1999	80.5	43
8 September 2026	78	36	102	1902	31	2002	80	44
9 September 2026	85	38	103	1902	30	1983	81	41
10 September 2026	86	49	95	1944	27	2010	82	41
11 September 2026	79	41	95	1922	29	1909	80	42
12 September 2026	78	36	94	1899	28	1966	82.5	42.5
13 September 2026	62	37	93	1995	21	1970	79	42.5
14 September 2026	70	32	95	1937	28	2018	77	41
15 September 2026	76	31	94	1981	30	1927	76	40
16 September 2026	71	48	94	1981	28	2018	74	40
17 September 2026	67	42	93	1981	28	2003	74	40
18 September 2026	75	39	91	1991	29	2015	73.5	39
19 September 2026	76	36	91	1991	31	1978	78	40
20 September 2026	81	39	92	1936	28	2006	77.5	37
21 September 2026	82	39	90	1987	25	1968	78	40
22 September 2026	79	39	92	1987	25	2017	76	38
23 September 2026	77	35	91	1994	26	2016	75	38
24 September 2026	73	36	89	1994	20	1973	77	39
25 September 2026	63	40	90	2009	26	1934	77	36
26 September 2026	67	33	91	1994	26	1934	78	36.5
27 September 2026	69	32	91	1994	26	2013	78	38
28 September 2026	72	31	91	1994	25	2023	79.5	39

The warmest, coldest and wettest on this date

The 20 warmest 28 September highs in Klamath Falls, OR since 1898.
Rank	Year	High, °F
1	1994	91
2	1967	88
2	1963	88
4	2024	87
4	2010	87
4	2003	87
4	1992	87
4	1899	87
9	1996	86
10	2016	85
10	2008	85
12	2020	84
12	2018	84
14	2006	83
14	1993	83
14	1906	83
17	2012	82
17	1975	82
17	1973	82
17	1916	82

The 20 coldest 28 September lows in Klamath Falls, OR since 1898.
Rank	Year	Low, °F
1	2023	25
2	1922	27
2	1905	27
4	1959	29
5	2007	30
5	1902	30
7	2026	31
7	2001	31
7	1986	31
10	1981	32
10	1898	32
12	1965	33
12	1929	33
12	1928	33
12	1911	33
12	1907	33
17	2021	34
17	2019	34
17	2017	34
17	1988	34

The 20 wettest 28 September days in Klamath Falls, OR since 1898.
Rank	Year	Precipitation, in
1	1962	0.51
2	1977	0.41
3	1938	0.33
4	1957	0.21
5	1927	0.13
6	1930	0.11
7	2007	0.08
8	1940	0.07
8	1913	0.07
10	1971	0.05
11	1949	0.03
11	1919	0.03
13	2019	0.02
13	2014	0.02
15	2021	0.01
15	1951	0.01
15	1925	0.01
18	2008	trace
18	1955	trace
18	1953	trace

Every answer in words

Monday 28 September 2026: a high of 72°F in Klamath Falls, OR, the coldest 28 September day since 2023, tied 45th coldest of 121 (with 1946, 1942, 1926 and 1 other year).
Monday 28 September 2026: a low of 31°F in Klamath Falls, OR, the coldest 28 September night since 2023, tied 7th coldest of 121 (with 2001 and 1986).
Forecast for Tuesday 6 October 2026: a high of 86°F in Klamath Falls, OR, which would be the warmest 6 October since 1907, 2nd warmest of 124 (National Weather Service forecast).
Forecast for Tuesday 6 October 2026: a low of 42°F in Klamath Falls, OR, which would be the warmest 6 October night since 2023, tied 26th warmest of 124 (with 2010, 1997, 1991 and 3 other years) (National Weather Service forecast).
Klamath Falls, OR on 6 October: record high 89°F (1907), record low 23°F (2007 and 1927).
Klamath Falls, OR on 7 October: record high 89°F (1907), record low 23°F (1959).
September 2026 so far brought 0.83 in of precipitation in Klamath Falls, OR, the wettest 1 to 28 September since 2019, tied 21st wettest of 124 (with 2001).
Fall 2026 so far averaged 54.4°F in Klamath Falls, OR, the coldest 1 to 28 September since 2005, 6th coldest of 119.
Fall 2026 so far brought 0.83 in of precipitation in Klamath Falls, OR, the wettest 1 to 28 September since 2019, tied 21st wettest of 124 (with 2001).
2026 so far averaged 51.3°F in Klamath Falls, OR (1 day missing), the warmest 1 January to 28 September since 2025, tied 40th warmest of 119 (with 1968 and 1902).
2026 so far brought 5.55 in of precipitation in Klamath Falls, OR, the driest 1 January to 28 September since 2022, 19th driest of 116.
The 30 days to Monday 28 September 2026 brought 0.83 in of precipitation in Klamath Falls, OR, the driest 30 days to 28 September since 2025, tied 102nd driest of 124 (with 2001).
The 60 days to Monday 28 September 2026 brought 0.83 in of precipitation in Klamath Falls, OR, the driest 60 days to 28 September since 2021, 75th driest of 122.
The 90 days to Monday 28 September 2026 brought 0.83 in of precipitation in Klamath Falls, OR, the driest 90 days to 28 September since 2021, tied 56th driest of 121 (with 1920 and 1919).
Klamath Falls, OR has had 16 days at 90°F or above in 2026 through 28 September (1 day missing), the most by that date since 2025, tied 71st most of 119 (with 1946 and 1927).
Klamath Falls, OR has had 116 freezing nights (a low of 32°F or below) in 2026 through 28 September (1 day missing), the most by that date since 2022, tied 15th most of 119 (with 2004, 1922 and 1917).
The first freeze of fall 2026 in Klamath Falls, OR came on Friday 4 September 2026, the earliest since 2025, tied 27th earliest of 120 (with 1912).
The last freeze of spring 2026 in Klamath Falls, OR came on Wednesday 1 July 2026, the latest since 2020, tied 18th latest of 121 (with 1927).

Nearby

Medford, OR 59.2 mi
Mount Shasta, CA 65.5 mi
Alturas, CA 77.4 mi
Redding, CA 117.4 mi
Brookings, OR 130.1 mi
Klamath County, OR county average
Oregon every city and county

All-time records

About these figures

Daily records for Klamath Falls, OR run from 1897 to 28 September 2026, with 1598 days missing; current station KLAMATH FALLS AG STA.

Our calculation from NOAA records for Klamath Falls, OR, 1897 to 2026. Preliminary until NOAA's final data.