September weather in Rockland, ID
The average temperature in Rockland in September is 60.1°F (42.8°F–77.4°F). Average precipitation: 0.88 inches.
September is a fall month in Rockland, and is warmer than the annual average of 47.3°F. Daily temperatures swing about 34.6°F between overnight low and afternoon high. Expect about 6 days with precipitation. Daylight averages about 12h 16m. For travel, September is a comfortable month to visit.
Avg High
77.4°F
Avg Low
42.8°F
Precipitation
0.88 in
Daylight
12h 16m
September records in Rockland
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 100.0°F (1995) | 35.1°F (2005) | 0.48 in (2012) |
| September 2 | 97.0°F (1978) | 35.1°F (1974) | 0.57 in (1973) |
| September 3 | 98.1°F (1978) | 33.1°F (1975) | 0.32 in (2013) |
| September 4 | 102.9°F (2022) | 36.0°F (1975) | 0.50 in (2023) |
| September 5 | 98.1°F (1998) | 37.0°F (1975) | 0.36 in (2007) |
| September 6 | 99.0°F (2020) | 34.0°F (2015) | 0.25 in (1978) |
| September 7 | 102.9°F (2022) | 30.9°F (1992) | 0.73 in (2002) |
| September 8 | 99.0°F (2022) | 28.9°F (1976) | 0.37 in (1973) |
| September 9 | 96.1°F (1988) | 26.1°F (1976) | 0.42 in (1986) |
| September 10 | 98.1°F (2021) | 30.0°F (2001) | 0.61 in (1991) |
| September 11 | 100.9°F (1990) | 33.1°F (1989) | 0.60 in (1997) |
| September 12 | 95.0°F (1990) | 32.0°F (1979) | 0.76 in (1985) |
| September 13 | 93.9°F (2022) | 28.0°F (1974) | 0.29 in (2001) |
| September 14 | 99.0°F (1990) | 28.0°F (1974) | 0.60 in (2001) |
| September 15 | 97.0°F (1995) | 30.9°F (1974) | 0.37 in (2016) |
| September 16 | 96.1°F (2000) | 34.0°F (1994) | 0.60 in (2022) |
| September 17 | 96.1°F (2000) | 30.0°F (1987) | 0.37 in (1989) |
| September 18 | 98.1°F (2004) | 28.0°F (1975) | 0.57 in (2024) |
| September 19 | 93.0°F (1981) | 30.9°F (1975) | 0.25 in (2020) |
| September 20 | 88.0°F (1979) | 21.0°F (1983) | 0.69 in (1982) |
| September 21 | 88.0°F (2008) | 25.0°F (1975) | 0.89 in (2017) |
| September 22 | 93.0°F (1992) | 25.0°F (1995) | 0.54 in (2022) |
| September 23 | 93.9°F (2015) | 26.1°F (1996) | 0.79 in (2016) |
| September 24 | 95.0°F (1987) | 27.0°F (2000) | 0.62 in (2016) |
| September 25 | 95.0°F (2001) | 25.0°F (1996) | 0.20 in (1981) |
| September 26 | 97.0°F (2015) | 26.1°F (1996) | 0.24 in (1986) |
| September 27 | 91.0°F (1978) | 25.0°F (2012) | 0.47 in (2014) |
| September 28 | 93.0°F (1994) | 24.1°F (1999) | 0.33 in (2014) |
| September 29 | 95.0°F (2024) | 27.0°F (1999) | 0.81 in (2019) |
| September 30 | 93.0°F (1979) | 26.1°F (1985) | 0.48 in (2009) |