La Salle, Illinois Climate
United States
Pop. 9,609 Elev. 175 m / 574 ft
TZ: America/Chicago (UTC-5) ·
La Salle has a dry climate with warm summers reaching 88°F (31°C) in July and cold winters averaging 16°F (-9°C) in January. Humidity pushes the summer feels-like temperature to 100°F (38°C), while wind chill can drive winter lows to 7°F (-14°C). Rain falls on about 44 days per year (27.9 in / 708 mm total), with snow on 3 days and 31 in (790 mm) of annual accumulation. The city averages 126 sunny days per year and around 31 thunderstorm days. Nearby lake water reaches 79°F (26°C) in summer.
| Temperature | 88°F (31°C) high | 16°F (-9°C) low |
| Feels like | 100°F (38°C) high | 7°F (-14°C) low |
| Rain | 44 days | 27.9 in (708 mm) /yr |
| Snow | 3 days | 31.1 in (790 mm) /yr |
| Sky | 126 sunny | 31 stormy |
| Wind | 2.8 mph (1.2 m/s) avg |
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Explore on the MapMonthly Climate Chart
Best months to visit: Apr, Sep, Oct
Sky & Air by Month
Cloud cover (%)
53
Jan 61
Feb 53
Mar 67
Apr 58
May 52
Jun 65
Jul 52
Aug 36
Sep 44
Oct 55
Nov 73
Dec Humidity (%)
61
Jan 65
Feb 57
Mar 59
Apr 59
May 63
Jun 71
Jul 73
Aug 60
Sep 60
Oct 65
Nov 77
Dec Weather Days by Month
Water Temperatures
Cities with Similar Climate
Find similar cities on the map →Nearby Cities
Nearby
Commercial airport 60 mi Chicago Rockford International Airport (RFD)
Ski resort 56 mi
National park 81 mi Historic Pullman Foundation Exhibit Hall
Hospital 2 mi Illinois Valley Community Hospital
Hiking trail 18 mi Spring Lake Park
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Monthly Weather Data
↑ See chart| Month | Avg High | Avg Low | Rainfall | Snowfall | Sunny Days |
|---|---|---|---|---|---|
| January | 32°F 0°C | 16°F -9°C | 0.6 in 16 mm | 4.6 in116 mm | 14 |
| February | 37°F 3°C | 21°F -6°C | 0.2 in 6 mm | 5.7 in146 mm | 8 |
| March | 59°F 15°C | 37°F 3°C | 3.1 in 78 mm | 4.6 in118 mm | 11 |
| April | 64°F 18°C | 45°F 7°C | 2.8 in 71 mm | — | 6 |
| May | 73°F 23°C | 52°F 11°C | 3.4 in 85 mm | — | 9 |
| June | 86°F 30°C | 66°F 19°C | 3.3 in 84 mm | — | 10 |
| July | 88°F 31°C | 71°F 22°C | 4.9 in 125 mm | — | 7 |
| August | 81°F 27°C | 64°F 18°C | 3.4 in 86 mm | — | 15 |
| September | 82°F 28°C | 57°F 14°C | 1.1 in 29 mm | — | 20 |
| October | 70°F 21°C | 50°F 10°C | 2.1 in 54 mm | — | 13 |
| November | 52°F 11°C | 36°F 2°C | 1.1 in 29 mm | 9.3 in235 mm | 9 |
| December | 36°F 2°C | 20°F -6°C | 1.8 in 45 mm | 6.9 in176 mm | 4 |
Weather Days by Month
↑ See chart| Month | Sunny Days | Storm Days |
|---|---|---|
| January | 14 | 1 |
| February | 8 | 0 |
| March | 11 | 4 |
| April | 6 | 1 |
| May | 9 | 3 |
| June | 10 | 4 |
| July | 7 | 8 |
| August | 15 | 5 |
| September | 20 | 2 |
| October | 13 | 2 |
| November | 9 | 0 |
| December | 4 | 1 |
Water Temperatures Data
↑ See chart| Month | Lake Avg High |
|---|---|
| January | 32°F 0°C |
| February | 32°F 0°C |
| March | 42°F 6°C |
| April | 53°F 12°C |
| May | 61°F 16°C |
| June | 73°F 23°C |
| July | 79°F 26°C |
| August | 75°F 24°C |
| September | 68°F 20°C |
| October | 59°F 15°C |
| November | 43°F 6°C |
| December | 32°F 0°C |