Mount Rainier National Park in May
Mount Rainier National Park · crowd + weather almanac
May crowd level
quiet
about 95,000 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 Mount Rainier National Park: about 95,000 recreation visits in a typical May (6% of the year's traffic, and 25% of what the peak month, July, sees). This is one of the quieter months of the year here. Weather-wise, May days at the Rainier Paradise Rs, WA station typically top out around 48°F with nights near 33°F, and about 5.1 inches of precipitation falls over the month.
- Typical May: 94,992 recreation visits (median 2016–2025); the range across those years ran 4,900 (2020) to 107,122 (2018).
- Busier than 6 of the other 11 months.
- 1991–2020 May normals at Rainier Paradise Rs, WA: high 48°F, low 33°F, 5.08 in precipitation.
May weather (1991–2020 normals)
| Typical daytime high | 48°F |
|---|---|
| Typical overnight low | 33°F |
| Precipitation (monthly normal) | 5.08 in |
| Measured at | Rainier Paradise Rs, WA (USC00456898), 0.4 mi from the park reference point, elev. 5,427 ft |
Every month at Mount Rainier
| Month | Typical visits | Crowds | High / Low | Precip |
|---|---|---|---|---|
| January | 23,775 | quietest stretch | 34°F / 24°F | 17.2 in |
| February | 16,497 | quietest stretch | 34°F / 23°F | 12.9 in |
| March | 27,922 | quietest stretch | 36°F / 24°F | 13.2 in |
| April | 29,516 | quietest stretch | 40°F / 26°F | 8.3 in |
| May | 94,992 | quiet | 48°F / 33°F | 5.1 in |
| June | 219,463 | moderate | 54°F / 37°F | 3.8 in |
| July | 377,222 | busiest stretch | 62°F / 44°F | 1.4 in |
| August | 370,623 | busiest stretch | 64°F / 45°F | 1.6 in |
| September | 195,791 | moderate | 57°F / 41°F | 4.4 in |
| October | 105,185 | quiet | 46°F / 33°F | 11.2 in |
| November | 33,377 | quietest stretch | 37°F / 26°F | 18.2 in |
| December | 25,467 | quietest stretch | 33°F / 22°F | 18.9 in |