Climate almanac
Saint John
Missouri, US · 38.71°, -90.35°
What is the climate like in Saint John?
The best time to visit Saint John is typically September – October, with trip comfort peaking in September (7.2/10). Saint John is warmest in July, when daily highs average 88°F (31°C), and coolest in January, when lows fall to about 26°F (-3°C). The wettest month is typically April and the driest is December; the year sees roughly 45 in 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 26°F (-3°C)
- Wettest monthApril (5.1 in)
- Driest monthDecember (2.4 in)
- Annual precipitation45 in