Best Time to Visit Rocky Mountain National Park
The best months to visit Rocky Mountain National Park are March, April and May — computed from official NPS visitation (2021–2025 average), NOAA weather normals and daylight. July is the crowd peak (794,537 monthly visits); February is quietest at 14% of peak.
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Monthly crowd curve
Average monthly recreation visits, 2021–2025 (NPS Visitor Use Statistics). Amber bar = current month.
Rocky Mountain month by month
| Month | Verdict | Avg visits | % of peak | High / Low | Precip | Daylight |
|---|---|---|---|---|---|---|
| January | Shoulder | 119,123 | 15% | 37°F / 16°F | 0.8″ | 9.6h |
| February | Shoulder | 111,660 | 14% | 38°F / 16°F | 0.7″ | 10.7h |
| March | Best window | 153,039 | 19% | 45°F / 21°F | 1.6″ | 11.9h |
| April | Best window | 166,885 | 21% | 52°F / 26°F | 2.3″ | 13.3h |
| May | Best window | 320,085 | 40% | 61°F / 35°F | 2.3″ | 14.4h |
| June | Peak crowds | 627,290 | 79% | 74°F / 43°F | 1.4″ | 15h |
| July | Peak crowds | 794,537 | 100% | 80°F / 48°F | 2.5″ | 14.8h |
| August | Peak crowds | 673,675 | 85% | 78°F / 46°F | 1.7″ | 13.8h |
| September | Peak crowds | 592,233 | 75% | 70°F / 39°F | 1.6″ | 12.5h |
| October | Shoulder | 400,367 | 50% | 57°F / 30°F | 1.1″ | 11.2h |
| November | Shoulder | 150,002 | 19% | 44°F / 24°F | 0.7″ | 10h |
| December | Shoulder | 126,482 | 16% | 36°F / 16°F | 0.7″ | 9.3h |
Crowds: NPS Visitor Use Statistics, mean of 2021–2025 (2020 excluded as a COVID-19 anomaly). Weather: NOAA 1991–2020 monthly normals, station ESTES PARK 3 SSE, CO US (9 mi from park coordinates). Daylight: computed for the 15th of each month at the park's location. Methodology.
How many people visit Rocky Mountain each year
Rocky Mountain National Park had 4,171,431 recreation visits in 2025, about the same as 2024 (NPS Visitor Use Statistics). The busiest year since 2015 was 2019, with 4,670,053. Over 2021–2025 it averaged 4,235,378 visits a year, which makes it the 5th most-visited of the 63 national parks.
| Year | Recreation visits | vs. year before |
|---|---|---|
| 2025 | 4,171,431 | 0% |
| 2024 | 4,154,349 | +1% |
| 2023 | 4,115,837 | −4% |
| 2022 | 4,300,424 | −3% |
| 2021 | 4,434,848 | +34% |
| 2020 | 3,305,199 | −29% |
| 2019 | 4,670,053 | +2% |
| 2018 | 4,590,493 | +3% |
| 2017 | 4,437,215 | −2% |
| 2016 | 4,517,585 | +9% |
| 2015 | 4,155,916 | — |
Calendar-year recreation visits as published by NPS Visitor Use Statistics. 2020 is shown here but left out of the monthly averages above, because the COVID-19 pandemic makes it unrepresentative. See how every park compares: all 63 parks ranked by visits.
What to pack for Rocky Mountain in March
Computed from March's weather normals — Rocky Mountain's best month above. Visiting another month? Each month page has its own weather-computed list.
- Insulated jacket, beanie and gloves — nights average 21°F, below freezing
- Traction devices (microspikes) and gaiters — 19″ normal snowfall (compare other options)
- Insulated, waterproof boots — plus navigation and a basic first-aid kit — 19″ of snow is normal this month
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Common questions
What is the best month to visit Rocky Mountain?
March, April and May rank best for Rocky Mountain on VisitWhen's computed score — the strongest balance of low crowds (NPS data), comfortable weather (NOAA normals) and daylight, among months when the park’s headline access is typically open.
What is the most crowded month at Rocky Mountain?
July: an average of 794,537 recreation visits (NPS, 2021–2025). The quietest is February, at 14% of the July peak.
When is Rocky Mountain least crowded with decent conditions?
February. It is the park's quietest month (14% of the July peak, 111,660 average visits) without harsh-season weather.
How many people visit Rocky Mountain per year?
Rocky Mountain National Park had 4,171,431 recreation visits in 2025, about the same as 2024 (NPS Visitor Use Statistics). The busiest year since 2015 was 2019, with 4,670,053. Over 2021–2025 it averaged 4,235,378 visits a year.
What is the weather like at Rocky Mountain through the year?
The warmest month is July, with average highs of 80°F. The coldest nights come in February, averaging 16°F. The wettest month is July, with 2.5″ of precipitation. (NOAA 1991–2020 normals, ESTES PARK 3 SSE, CO US station.)
Is Rocky Mountain open all year?
Trail Ridge Road typically closes mid-October through late May; the Bear Lake corridor stays open year-round. Dates shift with snow and weather each year, so check the park's current NPS conditions before you go.
Dive into a month
Comparing parks for the same trip? See how Rocky Mountain ranks against all 63 parks in March, April and May.
Last verified 2026-09-24 · all parks