+38.6273° · -90.1979° · ELEV 0m
St. Louis
United States · Missouri
Monthly weather averages for St. Louis, United States — temperature highs and lows, rainfall, sunshine hours by month, and the best time to visit.
№ 01
July → JanuaryClimate Overview
St. Louis has a continental climate. The warmest month is July (31°C average high) and the coolest is January (5°C).
№ 02
1340 mm / yearRainfall by Month
St. Louis sees 1340 mm of rain a year. The wettest month is July (162 mm); the driest is February (72 mm).
№ 03
May–SeptemberBest Time to Visit
May–September
14°C – 31°C · 11.0h sun
The best time to visit St. Louis is May–September, when temperatures average 14°C–31°C with 11.0 sunshine hours per day.
Some visitors prefer March–April for cooler, drier conditions.
№ 04
12 months · °C · mm · hoursMonthly Breakdown
| January | 4.9°C | -4.1°C | 73 mm | 6.0 h | 07:17 | 17:02 |
|---|---|---|---|---|---|---|
| February | 6.9°C | -3.7°C | 72 mm | 7.0 h | 06:51 | 17:38 |
| March | 13.2°C | 2.5°C | 136 mm | 7.5 h | 07:12 | 19:07 |
| April | 18.8°C | 7.7°C | 130 mm | 9.0 h | 06:24 | 19:36 |
| May | 24.4°C | 14.2°C | 133 mm | 10.2 h | 05:49 | 20:05 |
| June | 29.9°C | 19.5°C | 124 mm | 11.6 h | 05:35 | 20:26 |
| July | 30.9°C | 21.4°C | 162 mm | 11.9 h | 05:48 | 20:24 |
| August | 29.6°C | 20.4°C | 141 mm | 10.9 h | 06:14 | 19:55 |
| September | 27.4°C | 17.3°C | 113 mm | 10.3 h | 06:42 | 19:10 |
| October | 20.2°C | 10.6°C | 103 mm | 7.8 h | 07:09 | 18:23 |
| November | 12.4°C | 2.8°C | 75 mm | 7.1 h | 06:42 | 16:48 |
| December | 8.1°C | -0.5°C | 78 mm | 6.0 h | 07:11 | 16:40 |
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Temperature, rainfall and sunshine, month by month.