Best time to visit John D. Rockefeller, Jr., Memorial Parkway
May, June and September are the best balance at John D. Rockefeller, Jr., Memorial Parkway: mild and dry for the park (average highs 56° to 66°F), with crowds from moderate to very busy. July is busiest, with about 345,000 visitors. October is the quietest, with highs near 51°F. January, February, March, April, November and December see few or no visitors, so parts of the park may be closed: check nps.gov.
- Quiet
- Moderate
- Busy
- Very busy
- Few or no visits (may be closed)
- Best months
Month by month
- Station
- Snake Rvr, WY USC00488315
- Lat / lon
- 44.14, -110.67
- Elevation
- 6,882 ft
- From park center
- 4.4 mi
- Normals
- 1991–2020
- Visits
- 2023–2025
| Field | Jan | Feb | Mar | Apr | Maybest | Junbest | Jul | Aug | Sepbest | Oct | Nov | Dec | Year |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| High, °F | 26° | 30° | 39° | 46° | 56° | 66° | 77° | 76° | 66° | 51° | 35° | 25° | 49° |
| Low, °F | 1° | 3° | 11° | 20° | 28° | 34° | 38° | 35° | 28° | 21° | 11° | 2° | 19° |
| Precipitation, in | 3.9 | 3.1 | 3.0 | 2.8 | 2.8 | 2.4 | 1.4 | 1.6 | 1.9 | 2.3 | 3.5 | 4.2 | 32.8 |
| Snow, in | 65.0 | 50.2 | 31.0 | 25.9 | 5.0 | 0.3 | 0 | 0 | 0.2 | 8.9 | 42.4 | 64.7 | 293.6 |
| Daylight, h:mm | 9:13 | 10:23 | 11:47 | 13:23 | 14:44 | 15:28 | 15:11 | 14:00 | 12:27 | 10:55 | 9:34 | 8:54 | |
| Visitors, thousands | 1 | 1 | 1 | 0 | 117 | 299 | 345 | 317 | 257 | 103 | 3 | 3 | 1,447 |
| Crowds | Few or no visits | Few or no visits | Few or no visits | Few or no visits | Moderate | Very busy | Very busy | Very busy | Busy | Quiet | Few or no visits | Few or no visits | |
| Weather | Cold | Cold | Cold | Cool | Mild | Mild | Mild | Mild | Mild | Cool | Cold | Cold |
| Month | High °F | Low °F | Precip., in | Snow, in | Daylight | Visitors | Crowds | Weather |
|---|---|---|---|---|---|---|---|---|
| January | 26° | 1° | 3.9 | 65.0 | 9:13 | 935 | Few or no visits | Cold |
| February | 30° | 3° | 3.1 | 50.2 | 10:23 | 891 | Few or no visits | Cold |
| March | 39° | 11° | 3.0 | 31.0 | 11:47 | 1,000 | Few or no visits | Cold |
| April | 46° | 20° | 2.8 | 25.9 | 13:23 | 200 | Few or no visits | Cool |
| Maybest | 56° | 28° | 2.8 | 5.0 | 14:44 | 117,000 | Moderate | Mild |
| Junebest | 66° | 34° | 2.4 | 0.3 | 15:28 | 299,000 | Very busy | Mild |
| July | 77° | 38° | 1.4 | 0 | 15:11 | 345,000 | Very busy | Mild |
| August | 76° | 35° | 1.6 | 0 | 14:00 | 317,000 | Very busy | Mild |
| Septemberbest | 66° | 28° | 1.9 | 0.2 | 12:27 | 257,000 | Busy | Mild |
| October | 51° | 21° | 2.3 | 8.9 | 10:55 | 103,000 | Quiet | Cool |
| November | 35° | 11° | 3.5 | 42.4 | 9:34 | 3,000 | Few or no visits | Cold |
| December | 25° | 2° | 4.2 | 64.7 | 8:54 | 2,600 | Few or no visits | Cold |
| Year | 49° | 19° | 32.8 | 293.6 | 1,447,000 | |||
Year: average high and low, total precipitation and snowfall, total visitors. T = trace (under 0.05 in). – = not measured at this station. Updated .
- Hottest July, average high 77°F
- Coldest nights January, average low 1°F
- Source NOAA National Centers for Environmental Information; National Park Service
- Visitors a year about 1,447,000 (2023–2025 average)
- State Wyoming
Closures, reservations and alerts: John D. Rockefeller, Jr., Memorial Parkway on nps.gov
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