September weather in Bonanza, OR
The average temperature in Bonanza in September is 58.6°F (39.2°F–78.0°F). Average precipitation: inches.
September is a fall month in Bonanza, and is warmer than the annual average of 46.6°F. Daily temperatures swing about 38.8°F between overnight low and afternoon high. Daylight averages about 12h 16m. For travel, September is a comfortable month to visit.
Avg High
78.0°F
Avg Low
39.2°F
Precipitation
in
Daylight
12h 16m
September records in Bonanza
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 98.1°F (1950) | 36.0°F (2021) | 0.20 in (1941) |
| September 2 | 102.0°F (1955) | 32.0°F (1944) | 0.46 in (1941) |
| September 3 | 102.9°F (1955) | 36.0°F (1944) | 0.10 in (1936) |
| September 4 | 104.0°F (1955) | 37.9°F (1948) | 0.04 in (1936) |
| September 5 | 102.0°F (1955) | 33.1°F (1954) | 0.00 in (1926) |
| September 6 | 97.0°F (1955) | 34.0°F (1954) | 0.03 in (1927) |
| September 7 | 93.9°F (2020) | 36.0°F (1946) | 0.38 in (1931) |
| September 8 | 93.9°F (2020) | 32.0°F (1946) | 0.22 in (1930) |
| September 9 | 91.9°F (1948) | 35.1°F (1947) | 0.57 in (1942) |
| September 10 | 93.9°F (1948) | 34.0°F (1947) | 0.39 in (1930) |
| September 11 | 93.9°F (1953) | 34.0°F (1946) | 0.17 in (1941) |
| September 12 | 91.9°F (1945) | 32.0°F (1949) | 1.08 in (1939) |
| September 13 | 93.0°F (1953) | 34.0°F (1952) | 0.12 in (1939) |
| September 14 | 91.9°F (1945) | 30.9°F (1944) | 0.83 in (1955) |
| September 15 | 95.0°F (1951) | 28.0°F (1944) | 0.11 in (1954) |
| September 16 | 93.0°F (1951) | 26.1°F (1944) | 0.32 in (1946) |
| September 17 | 89.1°F (1956) | 26.1°F (1949) | 0.98 in (1948) |
| September 18 | 90.0°F (1952) | 26.1°F (1954) | 0.86 in (1940) |
| September 19 | 91.0°F (1951) | 25.0°F (1947) | 0.14 in (1950) |
| September 20 | 87.1°F (1952) | 30.9°F (1954) | 0.18 in (1937) |
| September 21 | 87.1°F (1952) | 24.1°F (1956) | 0.77 in (1944) |
| September 22 | 91.9°F (1949) | 30.0°F (1945) | 0.42 in (1948) |
| September 23 | 90.0°F (1949) | 26.1°F (1945) | 0.25 in (1934) |
| September 24 | 90.0°F (1947) | 27.0°F (1945) | 0.39 in (1930) |
| September 25 | 91.9°F (1952) | 27.0°F (1955) | 0.08 in (1948) |
| September 26 | 89.1°F (1954) | 26.1°F (1955) | 0.10 in (1948) |
| September 27 | 87.1°F (1954) | 28.9°F (1945) | 0.27 in (1940) |
| September 28 | 86.0°F (2018) | 28.0°F (1945) | 0.56 in (1927) |
| September 29 | 84.0°F (1946) | 27.0°F (1945) | 0.11 in (1944) |
| September 30 | 86.0°F (2020) | 21.0°F (1950) | 0.41 in (1951) |