Updated October 2026
River Raisin National Battlefield Park Weather by Month
River Raisin National Battlefield Park is warmest in July, when the nearest NOAA climate station averages a high of 85°F and a low of 63°F, and coldest in January, with an average high of 33°F and an average low of 18°F.
These figures are NOAA's 1991–2020 climate normals, the 30-year average for each calendar month, from the nearest long-record weather station, 2.1 miles from the park's reference point. A single station cannot describe a whole park: temperatures elsewhere in River Raisin National Battlefield Park can differ from these, particularly with elevation.
Warmest month
Jul
85°F avg high
Coldest month
Jan
18°F avg low
Longest days
Jun
15.0 h of daylight
Average weather at River Raisin by month
| Month | Avg high | Avg low | Daylight |
|---|---|---|---|
| January | 33°F | 18°F | 9.3 h |
| February | 35°F | 19°F | 10.4 h |
| March | 45°F | 27°F | 11.7 h |
| April | 58°F | 38°F | 13.1 h |
| May | 69°F | 49°F | 14.4 h |
| June | 80°F | 59°F | 15.0 h |
| July | 85°F | 63°F | 14.8 h |
| August | 82°F | 61°F | 13.7 h |
| September | 75°F | 54°F | 12.3 h |
| October | 63°F | 42°F | 10.8 h |
| November | 49°F | 33°F | 9.6 h |
| December | 38°F | 24°F | 9.0 h |
NOAA 1991–2020 climate normals from station USC00205563, 2.1 miles from the park's reference point. Daylight is the monthly average, computed from the park's latitude. Each month links to how crowded River Raisin is at that time of year.
River Raisin weather by season
Winter: December to February
Average highs bottom out at 33°F in January, between 38°F in December and 35°F in February, with average lows between 18°F and 24°F. The average low is at or below freezing in all three months. Daylight is at its shortest, about 9.0 hours in December.
Spring: March to May
Average highs climb from 45°F in March to 69°F in May, with average lows between 27°F and 49°F. The average low is at or below freezing in March. Daylight lengthens from about 11.7 hours in March to 14.4 in May.
Summer: June to August
Average highs peak at 85°F in July, between 80°F in June and 82°F in August, with average lows between 59°F and 63°F. Daylight is at its longest, about 15.0 hours in June.
Fall: September to November
Average highs fall from 75°F in September to 49°F in November, with average lows between 33°F and 54°F. Daylight shortens from about 12.3 hours in September to 9.6 in November.
What the National Park Service says about the weather
There is a saying about Michigan weather: "If you don't like the weather wait five minutes and it will change!" Seasonal average temperatures for Monroe area: Winter: highs range from 30 F- 45 F and lows range from 15 F- 30 F Spring: highs range from 40 F - 70 F and lows range from 25 F - 55 F Summer: highs range from 70 F - 85 F and lows range from 50 F - 65 F Fall: highs range from 40 F - 80 F and lows range from 60 F - 30 F
Weather description courtesy of the National Park Service — official park site.
Today's forecast for River Raisin
Averages describe a typical month, not this week. For current conditions and the seven-day outlook, the National Weather Service issues a forecast for the park's reference point at 41.91°N, 83.38°W. It covers that one spot, so other elevations in the park can differ from it, as they do from the averages above.
National Weather Service forecast for River Raisin National Battlefield Park →
Weather and crowds together
July is both the warmest month and the busiest, with about 1.5× the visitors of the park's average month. November is the quietest. To see those crowds set against the weather for all twelve months, read the best time to visit River Raisin National Battlefield Park. For hotels, cabins and rentals close to the park, see where to stay near River Raisin.
Where to stay near River Raisin
Picked a month for River Raisin National Battlefield Park? Compare hotels, cabins and vacation rentals near the park with live availability and prices.
Top-rated places to stay near River Raisin
Prices for Oct 16–18, 4 adults. Change dates on the map below.
Availability and prices from Stay22 partners (Booking.com, Vrbo, Expedia). We may earn a commission from bookings, at no extra cost to you.
Planning a trip to River Raisin?
Get crowd forecasts and lodging deals for River Raisin by email. No spam, unsubscribe anytime.
Frequently Asked Questions
July is the warmest month at River Raisin National Battlefield Park, with an average high of 85°F and an average low of 63°F. That is the 1991–2020 average at the nearest long-record NOAA station, 2.1 miles from the park's reference point. Temperatures inside the park can differ, particularly with elevation.
January is the coldest month at River Raisin National Battlefield Park, with an average low of 18°F and an average high of 33°F, based on NOAA 1991–2020 climate normals.
Daylight at River Raisin National Battlefield Park runs from about 9.0 hours a day in December to about 15.0 hours in June, computed from the park's latitude.
Weather at nearby parks
34 mi away · warmest in July (82°F)
104 mi away · warmest in July (82°F)
106 mi away · warmest in July (82°F)
129 mi away · warmest in July (84°F)
Keep exploring
Sources: NOAA NCEI U.S. Climate Normals 1991–2020 (station USC00205563), daylight computed from latitude, weather description from the National Park Service, crowd levels from National Park Service Visitor Use Statistics (2011–2025). Updated 2026-10-11. Lodging results are provided by Stay22; WhenToVisitParks may earn a commission from bookings, at no extra cost to you.