Saint Clair, Missouri Climate
United States
Pop. 4,724 Elev. 238 m / 781 ft
TZ: America/Chicago (UTC-5) ·
Saint Clair sees warm summers peaking at 88°F (31°C) in July, and frigid winters that bottom out around 22°F (-6°C) in January. Humidity pushes the summer feels-like temperature to around 105°F (41°C). Precipitation occurs on roughly 65 days per year (39.5 in / 1002 mm total), with snow on 5 days and 25 in (637 mm) of annual accumulation. The city averages 123 sunny days per year and around 48 thunderstorm days. Nearby lake water reaches 83°F (28°C) in summer.
| Temperature | 88°F (31°C) high | 22°F (-6°C) low |
| Feels like | 105°F (41°C) high | 16°F (-9°C) low |
| Rain | 65 days | 39.5 in (1002 mm) /yr |
| Snow | 5 days | 25.1 in (637 mm) /yr |
| Sky | 123 sunny | 48 stormy |
| Wind | 2.3 mph (1.0 m/s) avg |
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Explore on the MapMonthly Climate Chart
Best months to visit: Mar, Jul, Aug, Oct
Sky & Air by Month
Cloud cover (%)
47
Jan 60
Feb 52
Mar 67
Apr 63
May 59
Jun 57
Jul 45
Aug 46
Sep 41
Oct 53
Nov 55
Dec Humidity (%)
61
Jan 65
Feb 49
Mar 65
Apr 73
May 79
Jun 80
Jul 66
Aug 64
Sep 68
Oct 67
Nov 69
Dec Weather Days by Month
Water Temperatures
Cities with Similar Climate
Find similar cities on the map →Nearby Cities
Nearby
Commercial airport 43 mi St. Louis Lambert International Airport (STL)
Ski resort 22 mi Hidden Valley
National park 114 mi Emmett Till and Mamie Till-Mobley National Monument
Hospital 14 mi Mercy Hospital Washington
Hiking trail 12 mi Wildflower Trail
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Monthly Weather Data
↑ See chart| Month | Avg High | Avg Low | Rainfall | Snowfall | Sunny Days |
|---|---|---|---|---|---|
| January | 38°F 3°C | 22°F -6°C | 1.5 in 38 mm | 8.4 in215 mm | 14 |
| February | 44°F 7°C | 26°F -3°C | 0.8 in 21 mm | 10.4 in265 mm | 8 |
| March | 67°F 19°C | 43°F 6°C | 3.0 in 77 mm | 0.8 in19 mm | 10 |
| April | 70°F 21°C | 49°F 10°C | 6.6 in 168 mm | 0.0 in0 mm | 5 |
| May | 72°F 22°C | 55°F 13°C | 4.9 in 124 mm | — | 9 |
| June | 83°F 28°C | 68°F 20°C | 8.1 in 207 mm | — | 9 |
| July | 88°F 31°C | 73°F 23°C | 3.5 in 89 mm | — | 9 |
| August | 86°F 30°C | 65°F 18°C | 0.4 in 10 mm | — | 14 |
| September | 84°F 29°C | 59°F 15°C | 4.3 in 110 mm | — | 12 |
| October | 72°F 22°C | 52°F 11°C | 3.0 in 77 mm | — | 16 |
| November | 59°F 15°C | 41°F 5°C | 2.6 in 67 mm | 4.0 in101 mm | 9 |
| December | 48°F 9°C | 31°F -1°C | 0.5 in 13 mm | 1.4 in37 mm | 8 |
Weather Days by Month
↑ See chart| Month | Sunny Days | Storm Days |
|---|---|---|
| January | 14 | 2 |
| February | 8 | 0 |
| March | 10 | 4 |
| April | 5 | 7 |
| May | 9 | 6 |
| June | 9 | 12 |
| July | 9 | 8 |
| August | 14 | 1 |
| September | 12 | 2 |
| October | 16 | 2 |
| November | 9 | 4 |
| December | 8 | 0 |
Water Temperatures Data
↑ See chart| Month | Lake Avg High |
|---|---|
| January | 33°F 0°C |
| February | 32°F 0°C |
| March | 48°F 9°C |
| April | 58°F 14°C |
| May | 65°F 18°C |
| June | 76°F 25°C |
| July | 83°F 28°C |
| August | 77°F 25°C |
| September | 72°F 22°C |
| October | 62°F 17°C |
| November | 47°F 8°C |
| December | 34°F 1°C |