Colorado · National Park
Best time to visit Rocky Mountain
Checked Oct 26, 2026 · Source: NPS + NOAA
For Rocky Mountain, the mild and quiet months are April and May: average highs of 50 to 85°F at the nearest NOAA station and visits at or below the yearly monthly average. July is busiest, with 18% of 2025 recreation visits. January was quietest, with an average high of 37°F.
Crowd index by month
Each bar is that month’s NPS recreation visits compared with the average month of 2025 (100 = average). July scored 220; January scored 28.
Source: NPS IRMA Stats, recreation visitors, 2025, pulled Oct 26, 2026. Index = month ÷ average month × 100.
Weather normals by month
| Month | Avg high °F | Avg low °F | Precip in | Crowd index |
|---|---|---|---|---|
| January | 37.1 | 16.1 | 0.82 | 28 |
| February | 37.5 | 15.8 | 0.68 | 29 |
| March | 45.0 | 21.2 | 1.58 | 47 |
| April | 51.5 | 26.1 | 2.26 | 50 |
| May | 61.2 | 34.7 | 2.27 | 92 |
| June | 73.9 | 42.6 | 1.37 | 178 |
| July | 80.2 | 48.2 | 2.55 | 220 |
| August | 77.7 | 46.4 | 1.71 | 194 |
| September | 69.6 | 39.2 | 1.65 | 166 |
| October | 56.6 | 30.2 | 1.12 | 110 |
| November | 44.1 | 23.5 | 0.74 | 47 |
| December | 36.2 | 16.4 | 0.67 | 39 |
Source: NOAA NCEI U.S. Climate Normals 1991-2020 (monthly), station USC00052761. The station may sit at a different elevation than the places you visit, so expect cooler temperatures higher up.
Mild and quiet months
- April
- May
Our rule, applied to the data above: average high between 50 and 85°F, and recreation visits no higher than the average month. It is arithmetic, not a forecast. Roads, trails and facilities can still be closed in these months.
Closures and seasonal dates
| Campground | Closed from | Until |
|---|---|---|
| Timber Creek Campground | Oct 5, 2026 | May 25, 2027 |
| Aspenglen Campground | Sep 28, 2026 | May 25, 2027 |
Park Closure Trail Ridge Road Status Update
Trail Ridge Road will be closing at 5 p.m. on Friday, October 23, due to the forecast for snow, low visibility and freezing temperatures at higher elevations. The closure points will be at Many Parks Curve on the east side and Colorado River Trailhead on the west side. Details on nps.gov
Source: NPS API campgrounds and alerts, checked Oct 26, 2026.
Hours
While certain roads and facilities may be closed for the winter season, Rocky Mountain National Park is open 24 hours a day, 365 days a year.
Source: NPS API operating hours, checked Oct 26, 2026.
More on Rocky Mountain: tour or DIY overview. TourOrDIY is independent and not affiliated with the National Park Service. See the accuracy disclaimer and our method.