September weather in Jerome, ID
The average temperature in Jerome in September is 63.2°F (48.4°F–78.0°F). Average precipitation: 0.43 inches.
September is a fall month in Jerome, and is warmer than the annual average of 50.1°F. Daily temperatures swing about 29.6°F between overnight low and afternoon high. Expect about 3 days with precipitation. Daylight averages about 12h 16m. For travel, September is a comfortable month to visit.
Avg High
78.0°F
Avg Low
48.4°F
Precipitation
0.43 in
Daylight
12h 16m
September records in Jerome
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 100.0°F (2022) | 36.0°F (1999) | 0.54 in (1964) |
| September 2 | 100.9°F (1950) | 37.0°F (2006) | 0.18 in (1985) |
| September 3 | 99.0°F (2022) | 34.0°F (2008) | 0.52 in (2023) |
| September 4 | 100.9°F (2007) | 34.0°F (1921) | 0.21 in (1946) |
| September 5 | 102.0°F (1955) | 35.1°F (1940) | 0.45 in (1978) |
| September 6 | 100.9°F (1955) | 35.1°F (1948) | 0.98 in (1978) |
| September 7 | 100.0°F (2022) | 32.0°F (1948) | 0.43 in (2002) |
| September 8 | 99.0°F (2022) | 30.9°F (1948) | 0.27 in (1980) |
| September 9 | 95.0°F (1990) | 34.0°F (1948) | 1.66 in (1961) |
| September 10 | 97.0°F (1959) | 30.9°F (1916) | 0.43 in (1991) |
| September 11 | 98.1°F (1943) | 26.1°F (2003) | 0.57 in (1976) |
| September 12 | 96.1°F (2001) | 30.9°F (1949) | 0.34 in (1976) |
| September 13 | 91.9°F (1943) | 28.0°F (2003) | 0.52 in (1939) |
| September 14 | 95.0°F (2007) | 27.0°F (1915) | 0.68 in (1959) |
| September 15 | 100.0°F (2000) | 27.0°F (1936) | 0.20 in (1959) |
| September 16 | 95.0°F (1995) | 28.0°F (1921) | 0.54 in (2015) |
| September 17 | 96.1°F (1929) | 28.9°F (1949) | 0.47 in (1919) |
| September 18 | 95.0°F (1938) | 26.1°F (1965) | 0.19 in (1978) |
| September 19 | 95.0°F (1939) | 24.1°F (1965) | 0.72 in (1940) |
| September 20 | 93.9°F (1939) | 28.9°F (1947) | 0.46 in (1940) |
| September 21 | 93.9°F (1966) | 30.0°F (1924) | 0.39 in (1968) |
| September 22 | 96.1°F (1966) | 27.0°F (1961) | 0.10 in (2014) |
| September 23 | 95.0°F (1949) | 28.9°F (1996) | 0.60 in (1918) |
| September 24 | 93.9°F (2001) | 23.0°F (1926) | 0.52 in (2016) |
| September 25 | 96.1°F (2001) | 21.0°F (1926) | 0.47 in (1915) |
| September 26 | 93.9°F (2014) | 23.0°F (1926) | 1.32 in (1923) |
| September 27 | 93.0°F (1963) | 21.0°F (2009) | 0.28 in (1972) |
| September 28 | 93.0°F (1963) | 27.0°F (1950) | 0.13 in (1949) |
| September 29 | 93.0°F (1994) | 26.1°F (1922) | 0.74 in (2014) |
| September 30 | 91.9°F (2008) | 27.0°F (1954) | 0.37 in (1959) |