September weather in Sandy, OR
The average temperature in Sandy in September is 61.3°F (50.9°F–71.7°F). Average precipitation: 3.42 inches.
September is a fall month in Sandy, and is warmer than the annual average of 51.4°F. Daily temperatures swing about 20.8°F between overnight low and afternoon high. Expect about 9 days with precipitation. Daylight averages about 12h 18m. For travel, September is one of the best months of the year to visit.
Avg High
71.7°F
Avg Low
50.9°F
Precipitation
3.42 in
Daylight
12h 18m
September records in Sandy
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 97.0°F (1924) | 30.0°F (1902) | 1.58 in (1971) |
| September 2 | 104.0°F (1988) | 39.9°F (1960) | 1.10 in (1979) |
| September 3 | 97.0°F (1988) | 39.0°F (1932) | 1.60 in (1913) |
| September 4 | 97.0°F (1955) | 39.9°F (1932) | 1.77 in (1945) |
| September 5 | 102.9°F (1944) | 39.0°F (1910) | 1.45 in (1919) |
| September 6 | 95.0°F (1944) | 36.0°F (1910) | 1.70 in (1919) |
| September 7 | 100.0°F (1958) | 37.9°F (1913) | 1.67 in (1973) |
| September 8 | 96.1°F (1944) | 35.1°F (1913) | 1.12 in (2003) |
| September 9 | 96.1°F (1907) | 35.1°F (1913) | 1.40 in (2003) |
| September 10 | 97.0°F (1944) | 35.1°F (1913) | 1.67 in (1985) |
| September 11 | 96.1°F (1922) | 35.1°F (1913) | 1.81 in (1927) |
| September 12 | 93.0°F (1918) | 35.1°F (1913) | 2.02 in (1920) |
| September 13 | 93.9°F (1937) | 34.0°F (1921) | 1.57 in (1906) |
| September 14 | 99.0°F (1937) | 34.0°F (1911) | 5.30 in (1933) |
| September 15 | 98.1°F (1981) | 34.0°F (1911) | 1.49 in (1933) |
| September 16 | 96.1°F (1981) | 36.0°F (1911) | 1.71 in (1963) |
| September 17 | 96.1°F (1938) | 35.1°F (1965) | 2.07 in (2016) |
| September 18 | 91.9°F (1999) | 28.9°F (1911) | 2.84 in (2021) |
| September 19 | 91.9°F (1999) | 34.0°F (1944) | 2.30 in (1921) |
| September 20 | 96.1°F (1994) | 36.0°F (1971) | 2.68 in (1982) |
| September 21 | 93.0°F (1952) | 37.0°F (1932) | 1.95 in (1972) |
| September 22 | 95.0°F (1952) | 30.0°F (1911) | 1.20 in (1948) |
| September 23 | 93.0°F (1942) | 34.0°F (1908) | 1.65 in (1973) |
| September 24 | 91.9°F (1974) | 33.1°F (1908) | 1.57 in (1933) |
| September 25 | 93.9°F (1991) | 30.0°F (1908) | 1.84 in (1971) |
| September 26 | 93.9°F (1949) | 30.9°F (1908) | 2.50 in (1914) |
| September 27 | 91.9°F (1967) | 34.0°F (1972) | 3.16 in (1940) |
| September 28 | 89.1°F (1932) | 36.0°F (1945) | 1.68 in (1995) |
| September 29 | 91.0°F (1932) | 34.0°F (1919) | 2.60 in (1927) |
| September 30 | 89.1°F (1923) | 35.1°F (1950) | 2.18 in (1951) |