Martinsburg, Sunday, 9 August, 12:03
Overcast. Feels like 89°. High 93°, low 72°.
In December, Martinsburg, MO averages a high of 41.6° and a low of 27.6°. About 2.5 inches of precipitation fall over the month (8 wet days). The record high is 72.9° (2021) and the record low -25.4° (1989). Normals are computed over the last 60 years.
| Day | High | Low | Chance of precip. | Record high | Record low |
|---|---|---|---|---|---|
| 1 | 45.1° | 31.8° | 28% | 66.2° (2012) | 6.4° (1985) |
| 2 | 46.8° | 31.8° | 23% | 68.5° (1982) | 5.4° (2006) |
| 3 | 45.7° | 31.6° | 25% | 71.6° (2012) | 8.2° (1985) |
| 4 | 44.4° | 30.6° | 28% | 68° (1998) | 1.4° (2006) |
| 5 | 45° | 30.4° | 25% | 70° (1998) | 10.4° (2006) |
| 6 | 42.1° | 29.7° | 33% | 66.7° (1980) | -2° (1964) |
| 7 | 41.9° | 28.8° | 18% | 67.3° (1980) | -2.6° (1977) |
| 8 | 42.4° | 28.8° | 25% | 70° (1991) | -6.3° (2006) |
| 9 | 41.9° | 28.6° | 28% | 62.6° (2021) | -0.2° (1977) |
| 10 | 42.3° | 27.3° | 25% | 63.5° (1965) | -5.6° (1977) |
| 11 | 42.4° | 27.3° | 23% | 63.7° (1979) | 1° (1972) |
| 12 | 42.3° | 29.3° | 13% | 68.2° (2015) | 1.4° (1962) |
| 13 | 42.3° | 28.9° | 23% | 64.8° (1975) | -6.5° (1961) |
| 14 | 43° | 28.4° | 37% | 65.5° (1975) | 2.5° (1963) |
| 15 | 42.6° | 28.6° | 33% | 72.9° (2021) | -8.7° (1989) |
| 16 | 40.6° | 27.1° | 18% | 69.6° (2021) | -10.5° (1989) |
| 17 | 39.9° | 25.3° | 17% | 58.3° (2006) | -10.8° (1972) |
| 18 | 40.5° | 25.9° | 32% | 57.9° (2002) | -6.5° (1983) |
| 19 | 40.3° | 26.2° | 25% | 57.9° (1976) | -17.3° (1983) |
| 20 | 40.5° | 25.7° | 30% | 61.5° (1967) | -10.3° (1981) |
| 21 | 39.6° | 25.9° | 27% | 61.2° (1967) | -12.6° (1989) |
| 22 | 40.5° | 25.7° | 20% | 58.6° (1965) | -20.9° (1989) |
| 23 | 39.9° | 26.2° | 25% | 64° (1982) | -25.4° (1989) |
| 24 | 37.6° | 24.3° | 28% | 68.2° (2021) | -18.8° (1983) |
| 25 | 38.3° | 24.1° | 17% | 64.2° (2021) | -18.9° (1983) |
| 26 | 39.7° | 25.7° | 17% | 64.2° (2019) | -5.1° (1983) |
| 27 | 41.2° | 27.1° | 27% | 62.1° (2008) | 2.5° (2017) |
| 28 | 41.9° | 27° | 25% | 70.5° (2025) | -2.4° (2000) |
| 29 | 39.7° | 26.2° | 23% | 67.1° (1984) | -7.1° (1983) |
| 30 | 40.3° | 26.1° | 30% | 64.4° (1965) | -13.9° (1983) |
| 31 | 37.9° | 24.6° | 27% | 62.1° (2004) | -8° (1968) |