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Best time to visit · Wyoming, United States
On the climate data, the best time to visit Grand Teton National Park is June – September, scoring up to 97/100 with highs around 77°F (25°C) and 1.2 in (30 mm) of rain in July. The toughest months are February & March and December, mainly because of cool days.
Highs run from 24°F to 77°F across the year, and the yearly total is about 30.9 in (785 mm) of rain and snow.
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high | 24°F-4°C | 26°F-3°C | 33°F1°C | 41°F5°C | 54°F12°C | 65°F19°C | 77°F25°C | 76°F24°C | 65°F19°C | 48°F9°C | 33°F1°C | 24°F-5°C |
| Avg low | 5°F-15°C | 6°F-14°C | 15°F-9°C | 23°F-5°C | 34°F1°C | 41°F5°C | 50°F10°C | 48°F9°C | 39°F4°C | 28°F-2°C | 16°F-9°C | 5°F-15°C |
| Rain/snow | 3.3 in83 mm | 2.9 in73 mm | 2.9 in73 mm | 3.0 in75 mm | 2.8 in72 mm | 2.4 in61 mm | 1.2 in30 mm | 1.4 in36 mm | 2.0 in50 mm | 2.6 in65 mm | 3.0 in76 mm | 3.6 in91 mm |
| Humidity | 97% | 98% | 96% | 86% | 74% | 67% | 56% | 50% | 56% | 70% | 88% | 97% |
| Cloud | 67% | 70% | 70% | 69% | 69% | 53% | 39% | 42% | 44% | 58% | 66% | 71% |
| Comfort | 43 | 43 | 43 | 44 | 66 | 90 | 97 | 96 | 94 | 60 | 44 | 40 |
Source: NASA POWER (public domain), 2001–2025 monthly averages on a ~50 km satellite and reanalysis grid, so coasts and valleys can differ from what's shown. Temperatures were adjusted from the grid cell's ~2,462 m (8,078 ft) to Grand Teton National Park's ~2,122 m (6,962 ft) elevation using the standard lapse rate of 6.5°C per 1,000 m. Precipitation includes snow as melted water; daylight is calculated from latitude. Check a forecast before you go.
The cold peaks here: highs of 24–26°F (-5–-3°C), and nights reach 5°F (-15°C). It's the wettest season, with about 9.7 in (247 mm) of rain or snow, 31% of the year's total. December – February are cold enough for snow. It holds the toughest stretch on our comfort score (February and December), averaging 42/100.
Temperatures climb through the season, from 33°F highs in March to 54°F by May. About 8.7 in (220 mm) of rain or snow falls across these months, 28% of the year's total. March & April are cold enough for snow. Comfort scores bottom out in March; the season averages 51/100.
Peak warmth: highs of 65–77°F (19–25°C). It's the driest season, with only about 5.0 in (127 mm) of rain, 16% of the year's total. Lows bottom out around 41°F (5°C). June – August are among the best-scoring months (season average 94/100).
Temperatures slide from 65°F highs in September to 33°F by November. About 7.5 in (191 mm) of rain or snow falls across these months, 24% of the year's total. October & November are cold enough for snow. Comfort peaks here: September ranks with the year's best, and the season averages 66/100.
By comfort score: 4 Great, 2 Good and 6 Tough. Great months: June – September. Tap a month for its own guide.
On the climate data, the best time to visit Grand Teton National Park is June – September, scoring up to 97/100 with highs around 77°F (25°C) and 1.2 in (30 mm) of rain in July. The toughest months are February & March and December, mainly because of cool days.
December is the wettest month, averaging about 3.6 in (91 mm) of rain or snow. July is the driest, with about 1.2 in (30 mm). The yearly total is around 30.9 in (785 mm).
January is the coldest, with average lows of 5°F (-15°C) and highs of 24°F (-4°C). The warmest is July, with average highs of 77°F (25°C).
Not very: summer (June – August) humidity averages 58%, and highs peak around 77°F (25°C), so it rarely feels sticky.
On average, yes: lows fall below 32°F (0°C) in October – April, bottoming out around 5°F (-15°C) in January.
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