Updated October 2026
Rock Cut State Park: Weather by Month and When to Go
Rock Cut State Park is a state park in Illinois. The USGS Protected Areas Database maps about 3,100 acres under its name. Average highs range from 25°F in January to 80°F in July.
Average highs sit between 60°F and 80°F in May through September. They stay below 60°F in October through April. The figures are NOAA climate normals for 1991–2020, measured at a weather station 10.6 miles from the park.
Warmest average high
80°F
July
Coldest average low
11°F
January
Most precipitation
5.6 in
June
Longest days
15.1 h
June
Rock Cut State Park weather by month
| Month | Average high | Average low | Precipitation | Snowfall | Daylight |
|---|---|---|---|---|---|
| January | 25°F | 11°F | 1.6 in | 9.8 in | 9.2 h |
| February | 29°F | 14°F | 1.5 in | 7.3 in | 10.3 h |
| March | 42°F | 24°F | 2.1 in | 4.3 in | 11.7 h |
| April | 55°F | 34°F | 3.7 in | 1.1 in | 13.2 h |
| May | 67°F | 46°F | 4.3 in | 0.0 in | 14.4 h |
| June | 76°F | 56°F | 5.6 in | 0.0 in | 15.1 h |
| July | 80°F | 60°F | 3.4 in | 0.0 in | 14.8 h |
| August | 78°F | 58°F | 4.1 in | 0.0 in | 13.7 h |
| September | 71°F | 50°F | 3.8 in | 0.0 in | 12.3 h |
| October | 58°F | 39°F | 2.8 in | 0.2 in | 10.8 h |
| November | 43°F | 27°F | 2.4 in | 2.7 in | 9.5 h |
| December | 31°F | 17°F | 2.0 in | 10.2 in | 8.9 h |
Temperature, precipitation and snowfall figures are NOAA climate normals for 1991–2020 from station USC00470696, the nearest station with a complete set of temperature normals, 10.6 miles from the park. Conditions in the park can differ from the station's, most of all where the two sit at different elevations. Daylight is calculated for the park's latitude at the middle of each month. The acreage is what the USGS Protected Areas Database maps under the park's name. The state's own figure can differ, because the database may hold part of a park under another name.
What the averages show
- Temperature. July is the warmest month, with an average high of 80°F and an average low of 60°F. January is the coldest month, with an average low of 11°F and an average high of 25°F.
- Precipitation. June is the wettest month, averaging 5.6 inches of precipitation, and February is the driest, at 1.5 inches. An average year brings about 37.3 inches in total.
- Snowfall. The station averages 35.6 inches of snow a year, with the most in December (10.2 inches).
- Daylight. Days run from about 8.9 hours of daylight in December to 15.1 hours in June.
Camping, trails, maps and fees
Whether Rock Cut State Park has camping or cabins, where its trails run, when it opens and what it charges are all published by the agency that runs the park. Its official page is the place to check before a trip.
Official Rock Cut State Park page
For the forecast rather than the averages, the National Weather Service issues a point forecast for the park's location.
Where to stay near Rock Cut State Park
Hotels, cabins and vacation rentals near Rock Cut State Park, with live availability and prices.
Top-rated places to stay near Rock Cut State Park
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Frequently Asked Questions
July is the warmest month, with an average high of 80°F and an average low of 60°F. January is the coldest month, with an average low of 11°F and an average high of 25°F. These are NOAA 1991–2020 climate normals from a weather station 10.6 miles from the park.
Average highs sit between 60°F and 80°F in May through September. They stay below 60°F in October through April.
June is the wettest month, averaging 5.6 inches of precipitation, and February is the driest, at 1.5 inches. An average year brings about 37.3 inches in total. Snowfall averages 35.6 inches a year, with the most in December.
Days run from about 8.9 hours of daylight in December to 15.1 hours in June. The hours are calculated for the park's latitude.
Nearest National Park Service sites
- Pullman National Historical Park84 miles away
- Indiana Dunes National Park109 miles away
- Ice Age National Scenic Trail117 miles away
Nearby state parks
- Governor Dodge State Park74 miles away · Wisconsin
- Matthiessen State Park74 miles away
- Maquoketa Caves State Park93 miles away · Iowa
- Mirror Lake State Park94 miles away · Wisconsin
Distances are measured in a straight line from the park, so the drive is longer.
Sources: NOAA NCEI U.S. Climate Normals 1991–2020; USGS Protected Areas Database for location and acreage; the official Illinois state park listing for the park's name.