September weather in Garden City, ID
The average temperature in Garden City in September is 63.1°F (50.1°F–76.0°F). Average precipitation: 0.57 inches.
September is a fall month in Garden City, and is warmer than the annual average of 49.8°F. Daily temperatures swing about 25.9°F between overnight low and afternoon high. Expect about 5 days with precipitation. Daylight averages about 12h 17m. For travel, September is one of the best months of the year to visit.
Avg High
76.0°F
Avg Low
50.1°F
Precipitation
0.57 in
Daylight
12h 17m
September records in Garden City
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 100.0°F (1987) | 36.0°F (1973) | 0.11 in (1983) |
| September 2 | 95.0°F (2025) | 39.9°F (1975) | 0.32 in (2000) |
| September 3 | 97.0°F (2007) | 39.0°F (1980) | 0.28 in (2023) |
| September 4 | 95.0°F (1998) | 41.0°F (2014) | 0.03 in (1992) |
| September 5 | 93.9°F (1973) | 39.9°F (2015) | 0.34 in (2000) |
| September 6 | 93.0°F (1988) | 37.0°F (2010) | 0.69 in (1978) |
| September 7 | 95.0°F (1979) | 34.0°F (1976) | 0.55 in (1978) |
| September 8 | 93.0°F (2024) | 36.0°F (1976) | 1.14 in (1986) |
| September 9 | 91.0°F (1981) | 37.9°F (2000) | 0.58 in (1998) |
| September 10 | 93.0°F (1990) | 37.0°F (2005) | 1.96 in (1980) |
| September 11 | 91.0°F (1990) | 37.0°F (1982) | 1.50 in (1976) |
| September 12 | 90.0°F (1981) | 37.0°F (2014) | 0.29 in (2004) |
| September 13 | 88.0°F (1981) | 32.0°F (1992) | 0.49 in (1980) |
| September 14 | 98.1°F (2000) | 35.1°F (1993) | 0.40 in (2013) |
| September 15 | 90.0°F (1981) | 39.0°F (2006) | 0.46 in (1996) |
| September 16 | 90.0°F (1981) | 35.1°F (1987) | 0.31 in (2024) |
| September 17 | 95.0°F (1981) | 35.1°F (1996) | 0.73 in (1985) |
| September 18 | 93.9°F (1981) | 35.1°F (1978) | 0.35 in (1980) |
| September 19 | 95.0°F (2003) | 33.1°F (1978) | 1.01 in (1982) |
| September 20 | 93.9°F (2008) | 28.0°F (1983) | 1.03 in (2008) |
| September 21 | 87.1°F (1979) | 30.9°F (1993) | 0.34 in (2008) |
| September 22 | 91.0°F (1992) | 32.0°F (1993) | 0.14 in (2017) |
| September 23 | 91.0°F (2001) | 30.9°F (1996) | 0.45 in (2007) |
| September 24 | 90.0°F (2011) | 27.0°F (1984) | 0.90 in (1977) |
| September 25 | 89.1°F (2015) | 28.0°F (2000) | 0.41 in (2013) |
| September 26 | 88.0°F (1978) | 32.0°F (1999) | 0.55 in (1986) |
| September 27 | 97.0°F (2000) | 30.0°F (1999) | 0.49 in (1986) |
| September 28 | 89.1°F (2022) | 30.0°F (1999) | 0.24 in (1982) |
| September 29 | 90.0°F (1992) | 30.0°F (2019) | 0.56 in (2014) |
| September 30 | 91.9°F (1992) | 30.0°F (2019) | 0.52 in (1983) |