St. Mary, Sunday, 9 August, 06:58
Clear. Feels like 72°. High 96°, low 71°.
In January, St. Mary, MO averages a high of 40.8° and a low of 25.4°. About 2.7 inches of precipitation fall over the month (8 wet days). The record high is 69.1° (2023) and the record low -17.5° (1982). Normals are computed over the last 60 years.
| Day | High | Low | Chance of precip. | Record high | Record low |
|---|---|---|---|---|---|
| 1 | 41° | 26.4° | 18% | 63.9° (1965) | -0.8° (2018) |
| 2 | 40.5° | 26.8° | 32% | 66.2° (2005) | -2.4° (2001) |
| 3 | 41.2° | 27.1° | 28% | 69.1° (2023) | 3° (2001) |
| 4 | 39.7° | 24.6° | 22% | 65.7° (1997) | -0° (1999) |
| 5 | 38.8° | 24.4° | 23% | 61.5° (2019) | -6.5° (1999) |
| 6 | 38.8° | 25.7° | 30% | 63.9° (2008) | -8.9° (2014) |
| 7 | 38.5° | 23.9° | 25% | 67.3° (2008) | -11.9° (2014) |
| 8 | 38.1° | 23.2° | 27% | 66.9° (1965) | -7.8° (1968) |
| 9 | 39.6° | 24.4° | 22% | 60.4° (2002) | -0.6° (1970) |
| 10 | 39.2° | 24.4° | 30% | 64° (1975) | -10.8° (1982) |
| 11 | 41° | 25.3° | 30% | 66.7° (2017) | -11.7° (1977) |
| 12 | 41.5° | 26.2° | 27% | 67.6° (2005) | -6.3° (1997) |
| 13 | 40.6° | 24.3° | 32% | 62.4° (1960) | -6.9° (1997) |
| 14 | 39.4° | 24.3° | 18% | 58.6° (1960) | -4.5° (1964) |
| 15 | 38.7° | 23.7° | 15% | 59.7° (1990) | -11.7° (1979) |
| 16 | 40.8° | 24.1° | 18% | 63.9° (1990) | -5.8° (1977) |
| 17 | 40.8° | 25.9° | 32% | 62.1° (1996) | -17.5° (1982) |
| 18 | 40.6° | 24.8° | 27% | 63° (1974) | -6.9° (1994) |
| 19 | 39.2° | 23.5° | 28% | 62.4° (2006) | -14.4° (1994) |
| 20 | 38.8° | 24.3° | 22% | 59.9° (2006) | -15.5° (1985) |
| 21 | 40.5° | 24.1° | 18% | 69.1° (2017) | -16.2° (1970) |
| 22 | 42.4° | 26.8° | 30% | 62.1° (1964) | -7.4° (1970) |
| 23 | 43.3° | 27.5° | 22% | 66.4° (1967) | -6.9° (1963) |
| 24 | 43.3° | 26.2° | 18% | 66° (1972) | -3.5° (1963) |
| 25 | 42.1° | 27.1° | 23% | 61.3° (1967) | 2.8° (1979) |
| 26 | 41.5° | 25.7° | 18% | 57.4° (2014) | 4.3° (1978) |
| 27 | 41.7° | 25.9° | 30% | 65.8° (1999) | 0.5° (1963) |
| 28 | 43.3° | 26.4° | 23% | 68.2° (1970) | -8° (1961) |
| 29 | 43.9° | 27° | 35% | 66.2° (2002) | -4.5° (1966) |
| 30 | 42.1° | 25.9° | 27% | 62.2° (2013) | -3.8° (1966) |
| 31 | 43.9° | 26.2° | 25% | 66.2° (2016) | -0.4° (1965) |