August weather in Nampa, ID
The average temperature in Nampa in August is 73.6°F (55.5°F–91.6°F). Average precipitation: 0.20 inches.
August is a summer month in Nampa, and is warmer than the annual average of 52°F. Daily temperatures swing about 36.1°F between overnight low and afternoon high. Expect about 2 days with precipitation. Daylight averages about 13h 48m. For travel, August is hot.
Avg High
91.6°F
Avg Low
55.5°F
Precipitation
0.20 in
Daylight
13h 48m
August records in Nampa
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| August 1 | 102.0°F (1992) | 45.0°F (1981) | 0.04 in (1985) |
| August 2 | 102.9°F (2015) | 46.0°F (2014) | 0.03 in (1985) |
| August 3 | 104.0°F (2015) | 48.9°F (1985) | 0.00 in (1977) |
| August 4 | 100.9°F (2000) | 41.0°F (1980) | 0.03 in (2003) |
| August 5 | 100.0°F (1994) | 44.1°F (1980) | 0.00 in (1977) |
| August 6 | 102.9°F (1990) | 48.0°F (1979) | 0.11 in (2007) |
| August 7 | 102.9°F (2001) | 46.9°F (1980) | 0.29 in (2009) |
| August 8 | 104.0°F (1983) | 45.0°F (1995) | 0.29 in (2009) |
| August 9 | 107.1°F (1990) | 42.1°F (1995) | 0.24 in (1983) |
| August 10 | 102.9°F (1991) | 46.9°F (1985) | 0.03 in (1983) |
| August 11 | 102.9°F (1986) | 46.9°F (1997) | 0.34 in (1983) |
| August 12 | 102.9°F (2014) | 46.0°F (1985) | 0.28 in (2010) |
| August 13 | 102.0°F (1992) | 46.9°F (1995) | 0.15 in (1978) |
| August 14 | 100.9°F (1990) | 43.0°F (1995) | 0.83 in (2014) |
| August 15 | 105.1°F (1994) | 39.9°F (1999) | 0.05 in (1993) |
| August 16 | 100.0°F (2003) | 43.0°F (1993) | 0.15 in (1993) |
| August 17 | 100.0°F (2001) | 37.0°F (1978) | 0.13 in (2004) |
| August 18 | 100.9°F (2001) | 37.0°F (1978) | 0.16 in (2004) |
| August 19 | 102.9°F (2008) | 42.1°F (1980) | 0.05 in (1985) |
| August 20 | 100.9°F (1992) | 41.0°F (1988) | 0.12 in (1990) |
| August 21 | 100.0°F (2009) | 42.1°F (1980) | 0.29 in (1990) |
| August 22 | 100.0°F (2005) | 45.0°F (1981) | 0.01 in (2004) |
| August 23 | 99.0°F (2011) | 39.9°F (1978) | 0.93 in (2003) |
| August 24 | 98.1°F (2000) | 36.0°F (1992) | 0.20 in (1997) |
| August 25 | 98.1°F (2011) | 39.9°F (1992) | 0.25 in (1989) |
| August 26 | 98.1°F (1988) | 37.0°F (1992) | 0.07 in (1977) |
| August 27 | 100.0°F (2010) | 37.0°F (1994) | 0.03 in (1990) |
| August 28 | 99.0°F (1986) | 36.0°F (1994) | 0.00 in (1977) |
| August 29 | 99.0°F (2011) | 37.9°F (1980) | 0.08 in (2011) |
| August 30 | 100.0°F (1998) | 41.0°F (2014) | 0.18 in (1982) |
| August 31 | 97.0°F (2007) | 37.0°F (1977) | 0.30 in (1979) |