Best time to visit Grand Portage National Monument
May, June and September have the mildest temperatures at Grand Portage National Monument, though they are among the wetter months. August is busiest, with about 22,000 visitors. April is the quietest, with highs near 45°F.
- Quiet
- Moderate
- Busy
- Very busy
- Few or no visits (may be closed)
- Best months
Month by month
- Station
- Grand Portage, MN USC00213296
- Lat / lon
- 47.97, -89.69
- Elevation
- 730 ft
- From park center
- 1.7 mi
- Normals
- 1991–2020
- Visits
- 2023–2025
| Field | Jan | Feb | Mar | Apr | Maybest | Junbest | Jul | Aug | Sepbest | Oct | Nov | Dec | Year |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| High, °F | 20° | 24° | 34° | 45° | 58° | 68° | 74° | 73° | 65° | 51° | 38° | 26° | 48° |
| Low, °F | 1° | 2° | 13° | 26° | 37° | 46° | 52° | 52° | 44° | 33° | 22° | 9° | 28° |
| Precipitation, in | 1.4 | 1.0 | 1.3 | 2.8 | 3.1 | 3.6 | 3.4 | 3.0 | 3.1 | 3.4 | 2.6 | 1.7 | 30.6 |
| Snow, in | 12.2 | 8.0 | 8.0 | 7.7 | 0.2 | 0 | 0 | 0 | 0 | 0.5 | 6.7 | 11.9 | 55.2 |
| Daylight, h:mm | 8:47 | 10:08 | 11:44 | 13:34 | 15:08 | 16:01 | 15:40 | 14:18 | 12:31 | 10:45 | 9:11 | 8:24 | |
| Visitors, thousands | 2 | 1 | 2 | 2 | 6 | 14 | 19 | 22 | 12 | 6 | 1 | 1 | 88 |
| Crowds | Quiet | Quiet | Quiet | Quiet | Quiet | Busy | Very busy | Very busy | Busy | Quiet | Quiet | Quiet | |
| Weather | Cold | Cold | Cold | Cool | Mild, wet | Mild, wet | Mild, wet | Mild, wet | Mild, wet | Cool | Cold | Cold |
| Month | High °F | Low °F | Precip., in | Snow, in | Daylight | Visitors | Crowds | Weather |
|---|---|---|---|---|---|---|---|---|
| January | 20° | 1° | 1.4 | 12.2 | 8:47 | 1,500 | Quiet | Cold |
| February | 24° | 2° | 1.0 | 8.0 | 10:08 | 1,400 | Quiet | Cold |
| March | 34° | 13° | 1.3 | 8.0 | 11:44 | 1,900 | Quiet | Cold |
| April | 45° | 26° | 2.8 | 7.7 | 13:34 | 1,800 | Quiet | Cool |
| Maybest | 58° | 37° | 3.1 | 0.2 | 15:08 | 5,700 | Quiet | Mild, wet |
| Junebest | 68° | 46° | 3.6 | 0 | 16:01 | 14,000 | Busy | Mild, wet |
| July | 74° | 52° | 3.4 | 0 | 15:40 | 19,000 | Very busy | Mild, wet |
| August | 73° | 52° | 3.0 | 0 | 14:18 | 22,000 | Very busy | Mild, wet |
| Septemberbest | 65° | 44° | 3.1 | 0 | 12:31 | 12,000 | Busy | Mild, wet |
| October | 51° | 33° | 3.4 | 0.5 | 10:45 | 6,500 | Quiet | Cool |
| November | 38° | 22° | 2.6 | 6.7 | 9:11 | 1,300 | Quiet | Cold |
| December | 26° | 9° | 1.7 | 11.9 | 8:24 | 1,300 | Quiet | Cold |
| Year | 48° | 28° | 30.6 | 55.2 | 88,000 | |||
Year: average high and low, total precipitation and snowfall, total visitors. T = trace (under 0.05 in). – = not measured at this station. Updated .
- Hottest July, average high 74°F
- Coldest nights January, average low 1°F
- Source NOAA National Centers for Environmental Information; National Park Service
- Visitors a year about 88,000 (2023–2025 average)
- State Minnesota
Closures, reservations and alerts: Grand Portage National Monument on nps.gov
Nearby
- Isle Royale National ParkBest: May, Jun and Sep · Michigan
- Apostle Islands National LakeshoreBest: May, Jun and Sep · Wisconsin
- Voyageurs National ParkBest: May, Jun and Sep · Minnesota
- Saint Croix National Scenic RiverwayBest: May, Sep and Oct · Minnesota and Wisconsin