Tiffin, Sunday, 9 August, 12:00
Overcast. Feels like 87°. High 92°, low 67°.
In July, Tiffin, IA averages a high of 83° and a low of 66.6°. About 3.7 inches of precipitation fall over the month (9 wet days). The record high is 101.1° (2012) and the record low 48° (1971). Normals are computed over the last 60 years.
| Day | High | Low | Chance of precip. | Record high | Record low |
|---|---|---|---|---|---|
| 1 | 81.1° | 64.2° | 13% | 93.6° (1963) | 52.5° (1995) |
| 2 | 81.7° | 64.2° | 23% | 94.8° (2012) | 51.8° (1995) |
| 3 | 82.6° | 64.8° | 30% | 95.5° (2012) | 49.8° (1968) |
| 4 | 82.4° | 66.7° | 30% | 96.6° (2012) | 48.4° (1967) |
| 5 | 82.6° | 65.7° | 28% | 97° (2012) | 49.3° (1972) |
| 6 | 82.9° | 65.5° | 25% | 99° (2012) | 48.4° (1972) |
| 7 | 83.1° | 66.2° | 42% | 96.4° (2012) | 50.7° (1984) |
| 8 | 83.5° | 67.1° | 30% | 95.4° (1985) | 54° (2004) |
| 9 | 83.5° | 67.5° | 30% | 96.4° (1989) | 52.7° (1961) |
| 10 | 83.1° | 66.7° | 33% | 96.3° (1976) | 52.7° (1996) |
| 11 | 82.9° | 66.9° | 40% | 95.2° (1966) | 55.4° (1975) |
| 12 | 83.1° | 66.7° | 42% | 94.5° (1966) | 55.2° (1975) |
| 13 | 84° | 66.7° | 25% | 97° (1995) | 49.8° (1975) |
| 14 | 83.8° | 67.3° | 33% | 97.2° (1980) | 51.8° (1967) |
| 15 | 83.1° | 67.1° | 23% | 97.2° (1988) | 52.7° (1967) |
| 16 | 83.7° | 66.6° | 27% | 94.6° (2006) | 54.1° (2014) |
| 17 | 84.6° | 67.8° | 18% | 99.1° (2006) | 52.9° (2014) |
| 18 | 84.4° | 68.9° | 33% | 96.8° (2012) | 56.1° (1984) |
| 19 | 84.4° | 68.7° | 45% | 95.9° (2019) | 55.2° (2024) |
| 20 | 83.8° | 68.7° | 40% | 97.3° (1983) | 54.3° (2009) |
| 21 | 82.9° | 67.3° | 37% | 97.7° (1983) | 51.6° (1970) |
| 22 | 82.8° | 67.1° | 32% | 97.7° (1983) | 54° (1970) |
| 23 | 82.9° | 66.9° | 32% | 100.2° (2012) | 56.8° (2000) |
| 24 | 82.9° | 66.7° | 27% | 97.5° (2005) | 55° (2003) |
| 25 | 83.3° | 66.7° | 27% | 101.1° (2012) | 55.9° (2004) |
| 26 | 82.9° | 67.1° | 38% | 94.8° (1987) | 52.9° (1962) |
| 27 | 82.6° | 66.6° | 35% | 93.7° (2011) | 51.1° (1962) |
| 28 | 82.2° | 66.6° | 37% | 97.3° (1983) | 55.2° (2013) |
| 29 | 81.5° | 65.3° | 28% | 99.3° (1999) | 51.1° (1971) |
| 30 | 82° | 65.8° | 28% | 98.2° (1999) | 50.9° (1971) |
| 31 | 82.4° | 65.7° | 18% | 98.8° (2006) | 48° (1971) |