Princeton, Illinois Climate
United States
Pop. 7,594 Elev. 219 m / 719 ft
TZ: America/Chicago (UTC-5) ·
Dry and warm, Princeton sees July highs of 88°F (31°C) and cold January lows of 16°F (-9°C). Humidity pushes the summer feels-like temperature to 100°F (38°C), while wind chill can drive winter lows to 7°F (-14°C). Expect around 42 rainy days annually (28.3 in / 719 mm total), with snow on 3 days and 31 in (787 mm) of annual accumulation. The city averages 127 sunny days per year and around 30 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 | 42 days | 28.3 in (719 mm) /yr |
| Snow | 3 days | 31.0 in (787 mm) /yr |
| Sky | 127 sunny | 30 stormy |
| Wind | 2.7 mph (1.2 m/s) avg |
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Explore on the MapMonthly Climate Chart
Best months to visit: Apr, Jun, Sep, Oct
Sky & Air by Month
Cloud cover (%)
52
Jan 60
Feb 52
Mar 67
Apr 57
May 52
Jun 64
Jul 51
Aug 38
Sep 44
Oct 54
Nov 73
Dec Humidity (%)
61
Jan 65
Feb 58
Mar 60
Apr 58
May 62
Jun 71
Jul 74
Aug 59
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 50 mi General Wayne A. Downing Peoria International Airport (PIA)
Ski resort 70 mi
National park 99 mi Historic Pullman Foundation Exhibit Hall
Hospital 0 mi OSF Saint Clare Medical Center
Hiking trail 26 mi ADT - Illinois - I - Seg 3
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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 | 0.7 in 18 mm | 4.0 in101 mm | 14 |
| February | 36°F 2°C | 21°F -6°C | 0.2 in 6 mm | 5.4 in136 mm | 8 |
| March | 58°F 15°C | 37°F 3°C | 3.2 in 80 mm | 5.5 in138 mm | 12 |
| April | 64°F 18°C | 45°F 7°C | 3.0 in 75 mm | — | 6 |
| May | 73°F 23°C | 52°F 11°C | 3.6 in 91 mm | — | 10 |
| June | 87°F 30°C | 66°F 19°C | 2.7 in 70 mm | — | 10 |
| July | 88°F 31°C | 71°F 22°C | 5.7 in 145 mm | — | 7 |
| August | 81°F 27°C | 64°F 18°C | 3.4 in 85 mm | — | 15 |
| September | 82°F 28°C | 57°F 14°C | 1.2 in 29 mm | — | 19 |
| October | 70°F 21°C | 50°F 10°C | 1.9 in 48 mm | — | 13 |
| November | 52°F 11°C | 36°F 2°C | 1.1 in 28 mm | 9.2 in233 mm | 10 |
| December | 35°F 2°C | 20°F -7°C | 1.8 in 44 mm | 7.0 in179 mm | 3 |
Weather Days by Month
↑ See chart| Month | Sunny Days | Storm Days |
|---|---|---|
| January | 14 | 0 |
| February | 8 | 0 |
| March | 12 | 5 |
| April | 6 | 2 |
| May | 10 | 2 |
| June | 10 | 3 |
| July | 7 | 7 |
| August | 15 | 5 |
| September | 19 | 2 |
| October | 13 | 2 |
| November | 10 | 1 |
| December | 3 | 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 |