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Mid-spring · Weather & things to do

Rocky Mountain NP in April

Rocky Mountain NP warms up: highs climb to 43°F (6°C), from 34°F in March, with lows of 20°F (-7°C) and about 2.6 in (65 mm) of rain or snow.

Our comfort score puts it mid-table at 50/100, 9th of 12.

Rocky Mountain NP, Colorado, United States
Avg high
43°F (6°C)
Avg low
20°F (-7°C)
Rain or snow
2.6 in (65 mm)
Humidity
64%
Cloud cover
67%
Daylight
~13 h 05 min
Comfort score
50/100 · Fair

What April feels like

It's cool, with highs near 43°F (6°C), so a proper jacket stays on most of the day.

Nights drop below freezing, with an average low of 20°F (-7°C), so expect frost and ice.

About 2.6 in (65 mm) of rain or snow falls in the month, and with temperatures averaging below freezing, much of it may come as snow.

Rocky Mountain NP: April compared with the months either side
MarchAprilMay
Avg high34°F1°C43°F6°C54°F12°C
Avg low13°F-10°C20°F-7°C28°F-2°C
Rain/snow1.9 in47 mm2.6 in65 mm2.7 in69 mm
Daylight11 h 41 min13 h 05 min14 h 14 min
Comfort485067

Plan around April

April sits mid-table; the best months are June – September.

What to pack for April

What to do in Rocky Mountain NP in April

Weather can go either way, so the picks below mix open-air spots with indoor backups.

Nearby in April

NASA POWER 2001–2025 monthly averages on a ~50 km grid, temperatures adjusted from the grid cell's ~2,670 m to Rocky Mountain NP's ~2,918 m elevation (standard lapse rate). Comfort scores weigh temperature, rain, humidity and cloud: see how we score each month. Check a forecast before you go.

Rocky Mountain NP in April: quick answers

Is April a good time to visit Rocky Mountain NP?

It's middling, scoring 50/100. The best months are June – September, at up to 93. Expect highs of 43°F (6°C) and 2.6 in (65 mm) of rain or snow. Our Colorado Rockies route recommends Jun – Sep, so April is outside its suggested window.

How cold is Rocky Mountain NP in April?

Average highs are 43°F (6°C) and average lows 20°F (-7°C), making it the 6th-coldest month by daytime highs, with nights below freezing on average.

Does it snow a lot in Rocky Mountain NP in April?

Some: about 2.6 in (65 mm) of rain or snow falls across April on average, the 2nd-wettest month of the year. With temperatures this low, much of it may fall as snow. The annual total is about 21.8 in (553 mm).

What should I pack for Rocky Mountain NP in April?

Bring insulated jacket (highs only 43°F), hat, gloves and thermal base layers (lows around 20°F), insulated, waterproof boots (snow is likely on some days), waterproof outer layer (about 2.6 in of rain or snow) and comfortable walking shoes (most places below are best reached on foot or with short walks).

Planning Rocky Mountain NP in April?

Plan it together in TripsCircle: one itinerary, one shared packing list and costs split as you go.

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