Climate almanac
Flat River
Missouri, United States · 37.85°, -90.52°
What is the climate like in Flat River?
The best time to visit Flat River is typically September – October, with trip comfort peaking in September (7.2/10). Flat River is warmest in July, when daily highs average 88°F (31°C), and coolest in January, when lows fall to about 27°F (-3°C). The wettest month is typically April and the driest is November; the year sees roughly 48 in (1217 mm) of precipitation.
- Best time to visitSeptember – October — comfort peaks in September (7.2/10)
- Warmest monthJuly — average high 88°F (31°C)
- Coolest monthJanuary — average low 27°F (-3°C)
- Wettest monthApril (6.3 in (159 mm))
- Driest monthNovember (2.5 in (64 mm))
- Annual precipitation48 in (1217 mm)
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)
- Records fromFarmington, 11 km away (1906-2024)