Florissant Fossil Beds National Monument in May
May at Florissant Fossil Beds National Monument averages a daytime high near 65°F and an overnight low around 29°F, with about 1.6" of precipitation and roughly 4" of snow. Visitation runs about 1.1× the park's average month, which makes May an average month here.
- Average low
- 29°F
- Average high
- 65°F
Range across the year: 5°F to 79°F
- Precipitation
- 1.6 in
- Snowfall
- 4 in
- Daylight
- 14.1 hours
Roughly 9% of the park's yearly visitors come in May: roughly 6,100 recreation visits in a typical year, based on National Park Service monthly counts from 1979 to 2025.
That makes May the 5th-busiest of the park's twelve months, sitting between the July peak (2.2×) and the January low (0.3×).
On our Best Time to Visit score May rates 47/100 ("Fair"). Our recommended month is September: the lightest crowds of the park's good-weather months.
The daily average of about 47°F is cool, so layers and a shorter daylight window matter. These figures are 1991–2020 NOAA climate normals from the nearest station, about 0.3 miles from the park.
Because June, July and August together draw about 49% of annual visitors, choosing May instead steps outside that summer crush — the single biggest lever on how crowded the park feels.
You'll have about 14.1 hours of daylight in May to explore — between the 9.3-hour midwinter low and the 14.7-hour summer high.
Park-wide, 2025 drew 63,680 recreation visits, down 10.9% from 71,499 in 2024.
How May compares with the months around it
| Month | Avg high / low | Crowds | Best-time score |
|---|---|---|---|
| April | 56°F / 21°F | 0.6× Quiet | 43 Poor |
| May | 65°F / 29°F | 1.1× Average | 47 Fair |
| June | 75°F / 37°F | 1.9× Very busy | 47 Fair |
All twelve months at Florissant Fossil Beds, with the best time to visit.
Frequently Asked Questions
May averages a daytime high near 65°F and an overnight low around 29°F at Florissant Fossil Beds National Monument, with about 1.6 inches of precipitation and roughly 4 inches of snow. These are 1991–2020 NOAA climate normals from the nearest station, about 0.3 miles from the park, so conditions inside the park can differ, especially at other elevations.
May is average at Florissant Fossil Beds National Monument (about 1.1× the average month). Our best-time score rates it "Fair" at 47/100. Our recommended month is September.
The busiest month is July and the quietest is January. May sits at about 1.1× the park's average, or 9% of annual visitation.
A typical May sees about 6,000 recreation visits at Florissant Fossil Beds National Monument, based on National Park Service monthly counts from 1979–2025.
Where to stay near Florissant Fossil Beds in May
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Top-rated places to stay near Florissant Fossil Beds
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See the full ranking of the best national parks to visit in May.
Source: National Park Service Visitor Use Statistics (1979–2025), NOAA NCEI Climate Normals 1991–2020. Updated 2026-10-11.