Updated October 2026
Rocky Mountain National Park Weather by Month
Rocky Mountain National Park is warmest in July, when the nearest NOAA climate station averages a high of 80°F and a low of 48°F, and coldest in February, with an average high of 38°F and an average low of 16°F. July is the wettest month, with about 2.6 inches of precipitation. Snowfall is heaviest in April, at about 19 inches.
These figures are NOAA's 1991–2020 climate normals, the 30-year average for each calendar month, from the nearest long-record weather station, 9.3 miles from the park's reference point. A single station cannot describe a whole park: temperatures elsewhere in Rocky Mountain National Park can differ from these, particularly with elevation.
Warmest month
Jul
80°F avg high
Coldest month
Feb
16°F avg low
Wettest month
Jul
2.6 in avg
Snowiest month
Apr
19.3 in avg
Longest days
Jun
14.9 h of daylight
Average weather at Rocky Mountain by month
| Month | Avg high | Avg low | Precipitation | Snowfall | Daylight |
|---|---|---|---|---|---|
| January | 37°F | 16°F | 0.8 in | 9.8 in | 9.4 h |
| February | 38°F | 16°F | 0.7 in | 13.3 in | 10.5 h |
| March | 45°F | 21°F | 1.6 in | 18.8 in | 11.7 h |
| April | 52°F | 26°F | 2.3 in | 19.3 in | 13.1 h |
| May | 61°F | 35°F | 2.3 in | 9.5 in | 14.2 h |
| June | 74°F | 43°F | 1.4 in | 0.0 in | 14.9 h |
| July | 80°F | 48°F | 2.6 in | 0.0 in | 14.6 h |
| August | 78°F | 46°F | 1.7 in | 0.0 in | 13.6 h |
| September | 70°F | 39°F | 1.7 in | 0.5 in | 12.3 h |
| October | 57°F | 30°F | 1.1 in | 9.1 in | 10.9 h |
| November | 44°F | 24°F | 0.7 in | 11.0 in | 9.7 h |
| December | 36°F | 16°F | 0.7 in | 12.7 in | 9.1 h |
| Year total | 17.6 in | 104.0 in |
NOAA 1991–2020 climate normals from station USC00052761, 9.3 miles from the park's reference point. Daylight is the monthly average, computed from the park's latitude. Each month links to how crowded Rocky Mountain is at that time of year.
Rocky Mountain weather by season
Winter: December to February
Average highs hold near 37°F in all three months, with average lows near 16°F. The average low is at or below freezing in all three months. Together the three months average 2.2 inches of precipitation, about 13% of the yearly total and less than in any other season. Snowfall averages about 36 inches for the season. Daylight is at its shortest, about 9.1 hours in December.
Spring: March to May
Average highs climb from 45°F in March to 61°F in May, with average lows between 21°F and 35°F. The average low is at or below freezing in March and April. Together the three months average 6.2 inches of precipitation, about 35% of the yearly total and more than in any other season. Snowfall averages about 48 inches for the season. Daylight lengthens from about 11.7 hours in March to 14.2 in May.
Summer: June to August
Average highs peak at 80°F in July, between 74°F in June and 78°F in August, with average lows between 43°F and 48°F. Together the three months average 5.7 inches of precipitation, about 32% of the yearly total. Daylight is at its longest, about 14.9 hours in June.
Fall: September to November
Average highs fall from 70°F in September to 44°F in November, with average lows between 24°F and 39°F. The average low is at or below freezing in October and November. Together the three months average 3.5 inches of precipitation, about 20% of the yearly total. Snowfall averages about 21 inches for the season. Daylight shortens from about 12.3 hours in September to 9.7 in November.
What the National Park Service says about the weather
Weather can change quickly in Rocky Mountain National Park due to the mountains and elevation. Elevation in the park ranges from 7,800 feet above sea level to over 14,000 feet at the top of the tallest mountain peaks. Weather conditions can change quickly throughout the day. For detailed weather information, visit https://www.nps.gov/romo/planyourvisit/all-about-weather.htm For the most up-to-date weather forecasts, visit the National Weather Service webpage for Rocky at https://www.weather.gov/bou/rmnp
Weather description courtesy of the National Park Service — official park site.
Today's forecast for Rocky Mountain
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 40.36°N, 105.70°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 Rocky Mountain National Park →
Weather and crowds together
July is both the warmest month and the busiest, with about 2.4× the visitors of the park's average month. February is the quietest. To see those crowds set against the weather for all twelve months, read the best time to visit Rocky Mountain National Park. For hotels, cabins and rentals close to the park, see where to stay near Rocky Mountain.
Where to stay near Rocky Mountain
Picked a month for Rocky Mountain National Park? Compare hotels, cabins and vacation rentals near the park with live availability and prices.
Top-rated places to stay near Rocky Mountain
Prices for Oct 16–18, 4 adults. Change dates on the map below.
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Frequently Asked Questions
July is the warmest month at Rocky Mountain National Park, with an average high of 80°F and an average low of 48°F. That is the 1991–2020 average at the nearest long-record NOAA station, 9.3 miles from the park's reference point. Temperatures inside the park can differ, particularly with elevation.
February is the coldest month at Rocky Mountain National Park, with an average low of 16°F and an average high of 38°F, based on NOAA 1991–2020 climate normals.
July is the wettest month, with about 2.6 inches of precipitation. February, November and December are the driest, at about 0.7 inches each. The station records about 17.6 inches of precipitation in an average year.
Yes. The nearest long-record NOAA station, 9.3 miles from the park's reference point, averages about 104 inches of snow a year. April is the snowiest month, at about 19 inches. The station averages at least a tenth of an inch of snow in 9 of the 12 months.
Weather at nearby parks
Keep exploring
Sources: NOAA NCEI U.S. Climate Normals 1991–2020 (station USC00052761), daylight computed from latitude, weather description from the National Park Service, crowd levels from National Park Service Visitor Use Statistics (1979–2025). Updated 2026-10-11. Lodging results are provided by Stay22; WhenToVisitParks may earn a commission from bookings, at no extra cost to you.