Rocky Mountain National Park in May

Rocky Mountain National Park · crowd + weather almanac

May crowd level quiet

about 296,000 visits in a typical May

The 6th-busiest month of the year · median of 2016–2025 official NPS counts

May is the 6th-busiest month of the year at Rocky Mountain National Park: about 296,000 recreation visits in a typical May (7% of the year's traffic, and 35% of what the peak month, July, sees). This is one of the quieter months of the year here. Weather-wise, May days at the Estes Park 3 Sse, CO station typically top out around 61°F with nights near 35°F, and about 2.3 inches of precipitation falls over the month. The station's long-term normal includes about 10 inches of May snowfall.

Typical May: 296,228 recreation visits (median 2016–2025); the range across those years ran 63,051 (2020) to 335,060 (2021).
Busier than 6 of the other 11 months.
1991–2020 May normals at Estes Park 3 Sse, CO: high 61°F, low 35°F, 2.27 in precipitation, 9.5 in snow.

Typical (median) monthly recreation visits at Rocky Mountain National Park, 2016–2025. May highlighted. Source: NPS Visitor Use Statistics.

May weather (1991–2020 normals)

Typical daytime high	61°F
Typical overnight low	35°F
Precipitation (monthly normal)	2.27 in
Snowfall (monthly normal)	9.5 in
Measured at	Estes Park 3 Sse, CO (USC00052761), 3.2 mi from the park reference point, elev. 7,812 ft

Every month at Rocky Mountain

Month	Typical visits	Crowds	High / Low	Precip
January	116,141	quietest stretch	37°F / 16°F	0.8 in
February	103,129	quietest stretch	38°F / 16°F	0.7 in
March	146,083	quiet	45°F / 21°F	1.6 in
April	158,630	quiet	52°F / 26°F	2.3 in
May	296,228	quiet	61°F / 35°F	2.3 in
June	656,255	busy	74°F / 43°F	1.4 in
July	848,669	busiest stretch	80°F / 48°F	2.5 in
August	711,030	busy	78°F / 46°F	1.7 in
September	633,288	busy	70°F / 39°F	1.6 in
October	378,083	moderate	57°F / 30°F	1.1 in
November	144,220	quiet	44°F / 24°F	0.7 in
December	121,697	quietest stretch	36°F / 16°F	0.7 in

Official NPS page for Rocky Mountain →