July weather in Thomson, IL
The average temperature in Thomson in July is 74.6°F (65.2°F–84.0°F). Average precipitation: 3.40 inches.
July is a summer month in Thomson, and is warmer than the annual average of 49.9°F. Daily temperatures swing about 18.8°F between overnight low and afternoon high. Expect about 8 days with precipitation. Daylight averages about 14h 46m. For travel, July is a comfortable month to visit.
Avg High
84.0°F
Avg Low
65.2°F
Precipitation
3.40 in
Daylight
14h 46m
July records in Thomson
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| July 1 | 97.0°F (1963) | 48.9°F (2000) | 1.34 in (2014) |
| July 2 | 97.0°F (1966) | 53.1°F (1959) | 1.68 in (1983) |
| July 3 | 95.0°F (1949) | 52.0°F (1940) | 1.73 in (2006) |
| July 4 | 95.0°F (1949) | 52.0°F (1940) | 2.02 in (2007) |
| July 5 | 97.0°F (2012) | 50.0°F (1972) | 2.10 in (1995) |
| July 6 | 98.1°F (2012) | 50.0°F (1967) | 2.70 in (2016) |
| July 7 | 100.0°F (2012) | 48.0°F (2000) | 2.50 in (2015) |
| July 8 | 100.0°F (2012) | 52.0°F (2009) | 2.37 in (1956) |
| July 9 | 93.9°F (1946) | 54.0°F (1963) | 2.35 in (1951) |
| July 10 | 99.0°F (1966) | 53.1°F (1963) | 1.51 in (2007) |
| July 11 | 97.0°F (1989) | 52.0°F (1945) | 2.40 in (2025) |
| July 12 | 96.1°F (1939) | 52.0°F (1975) | 1.87 in (2025) |
| July 13 | 98.1°F (1981) | 51.1°F (1940) | 1.14 in (1938) |
| July 14 | 99.0°F (1995) | 50.0°F (1950) | 2.12 in (1992) |
| July 15 | 97.0°F (1988) | 50.0°F (2000) | 0.91 in (2021) |
| July 16 | 99.0°F (1988) | 46.0°F (2000) | 1.60 in (2024) |
| July 17 | 95.0°F (2006) | 52.0°F (2005) | 3.51 in (1939) |
| July 18 | 95.0°F (1966) | 55.9°F (1979) | 2.04 in (1952) |
| July 19 | 97.0°F (2012) | 54.0°F (2003) | 4.66 in (1963) |
| July 20 | 96.1°F (2011) | 45.0°F (1997) | 1.61 in (1994) |
| July 21 | 99.0°F (1983) | 52.0°F (2009) | 2.20 in (1949) |
| July 22 | 95.0°F (1955) | 48.0°F (2000) | 5.33 in (2017) |
| July 23 | 97.0°F (1991) | 51.1°F (1947) | 1.01 in (1983) |
| July 24 | 99.0°F (1940) | 55.0°F (1947) | 1.30 in (2010) |
| July 25 | 102.0°F (2005) | 50.0°F (1962) | 0.87 in (2009) |
| July 26 | 98.1°F (2012) | 54.0°F (1962) | 1.00 in (1944) |
| July 27 | 99.0°F (1939) | 53.1°F (1971) | 1.56 in (1969) |
| July 28 | 97.0°F (1955) | 53.1°F (1991) | 1.50 in (1999) |
| July 29 | 98.1°F (1983) | 53.1°F (1965) | 1.71 in (1990) |
| July 30 | 99.0°F (1955) | 48.9°F (1971) | 1.88 in (1970) |
| July 31 | 96.1°F (1955) | 46.9°F (1998) | 2.87 in (1965) |