July weather in Grimes, IA
The average temperature in Grimes in July is 75.2°F (65.6°F–84.7°F). Average precipitation: 4.27 inches.
July is a summer month in Grimes, and is warmer than the annual average of 50.3°F. Daily temperatures swing about 19.1°F between overnight low and afternoon high. Expect about 9 days with precipitation. Daylight averages about 14h 44m. For travel, July is a comfortable month to visit.
Avg High
84.7°F
Avg Low
65.6°F
Precipitation
4.27 in
Daylight
14h 44m
July records in Grimes
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| July 1 | 95.0°F (2006) | 55.0°F (2013) | 0.81 in (2023) |
| July 2 | 93.9°F (2012) | 53.1°F (2014) | 0.80 in (2024) |
| July 3 | 96.1°F (2012) | 50.0°F (2014) | 0.37 in (2009) |
| July 4 | 98.1°F (2012) | 53.1°F (1997) | 1.56 in (2022) |
| July 5 | 99.0°F (2012) | 51.1°F (1997) | 1.86 in (2014) |
| July 6 | 100.0°F (2012) | 53.1°F (2023) | 3.47 in (1998) |
| July 7 | 93.9°F (2012) | 51.1°F (2023) | 2.24 in (2025) |
| July 8 | 98.1°F (2002) | 55.0°F (2015) | 0.58 in (2003) |
| July 9 | 93.9°F (2006) | 53.1°F (2023) | 2.05 in (2021) |
| July 10 | 91.9°F (2020) | 48.9°F (1996) | 1.83 in (2002) |
| July 11 | 91.9°F (2017) | 55.9°F (2007) | 1.46 in (2002) |
| July 12 | 95.0°F (2018) | 55.9°F (2007) | 1.40 in (2023) |
| July 13 | 93.0°F (2006) | 53.1°F (2007) | 0.60 in (1997) |
| July 14 | 93.9°F (2010) | 53.1°F (2014) | 2.73 in (2020) |
| July 15 | 96.1°F (2012) | 50.0°F (2014) | 0.34 in (2024) |
| July 16 | 97.0°F (2006) | 54.0°F (2009) | 1.28 in (2015) |
| July 17 | 98.1°F (2012) | 50.0°F (2009) | 3.26 in (2008) |
| July 18 | 100.0°F (2012) | 55.0°F (2023) | 2.70 in (2010) |
| July 19 | 99.0°F (2006) | 55.0°F (2009) | 1.97 in (2008) |
| July 20 | 97.0°F (1998) | 57.0°F (2009) | 1.71 in (2025) |
| July 21 | 97.0°F (2017) | 50.0°F (2000) | 0.89 in (2008) |
| July 22 | 100.9°F (2012) | 53.1°F (2000) | 1.27 in (2025) |
| July 23 | 104.0°F (2012) | 54.0°F (2003) | 1.07 in (2010) |
| July 24 | 99.0°F (2012) | 57.0°F (2004) | 4.45 in (1997) |
| July 25 | 102.9°F (2012) | 53.1°F (2004) | 0.32 in (2012) |
| July 26 | 95.0°F (1997) | 51.1°F (2004) | 1.68 in (2006) |
| July 27 | 93.0°F (2002) | 53.1°F (2005) | 1.86 in (2008) |
| July 28 | 98.1°F (2023) | 48.9°F (2013) | 1.72 in (2015) |
| July 29 | 99.0°F (1999) | 53.1°F (2009) | 1.00 in (2025) |
| July 30 | 98.1°F (1999) | 53.1°F (2014) | 1.42 in (2010) |
| July 31 | 99.0°F (2006) | 53.1°F (2009) | 1.19 in (2024) |