Great Basin weather, month by month
- Jul high
- 85°F
- hottest month
- Dec low
- 20°F
- coldest month
- Rain + snowmelt
- 14.3in / yr
- wettest: Apr
- Snowfall
- 66.7in / yr
- Oct–Apr
- Days ≥ 90°F
- 13/ yr
- Nights ≤ 32°F
- 162/ yr
Great Basin NP
Month by month
| Month | High | Low | Rain | Snow | Wet days | Sunrise | Sunset | Daylight | Crowds |
|---|---|---|---|---|---|---|---|---|---|
| Jan | 40° | 20° | 1.3″ | 12.3″ | 7 | 6:54 AM | 4:38 PM | 9h 44m | 8 |
| Feb | 41° | 21° | 1.5″ | 20.7″ | 7 | 6:29 AM | 5:14 PM | 10h 45m | 7 |
| Mar | 48° | 27° | 1.2″ | 7.3″ | 7 | 6:49 AM | 6:43 PM | 11h 55m | 10 |
| Apr | 55° | 32° | 1.6″ | 7.2″ | 7 | 6:01 AM | 7:14 PM | 13h 13m | 31 |
| May | 64° | 40° | 1.3″ | 0.7″ | 8 | 5:24 AM | 7:42 PM | 14h 18m | 58 |
| Jun | 76° | 49° | 1.1″ | — | 5 | 5:11 AM | 8:04 PM | 14h 53m | 99 |
| Jul | 85° | 58° | 0.9″ | — | 7 | 5:24 AM | 8:02 PM | 14h 38m | 100 |
| Aug | 83° | 56° | 1.2″ | — | 7 | 5:50 AM | 7:33 PM | 13h 42m | 83 |
| Sep | 73° | 48° | 1.1″ | — | 6 | 6:18 AM | 6:46 PM | 12h 28m | 94 |
| Oct | 60° | 36° | 1.3″ | 2.0″ | 6 | 6:46 AM | 5:59 PM | 11h 13m | 64 |
| Nov | 48° | 26° | 0.9″ | 6.9″ | 6 | 6:20 AM | 4:23 PM | 10h 04m | 9 |
| Dec | 40° | 20° | 1.0″ | 9.6″ | 6 | 6:48 AM | 4:16 PM | 9h 27m | 7 |
Sweet spot: April and May combine average highs between 55°F and 85°F with crowds under 60% of the peak month. Check what is open in those months — quiet can also mean closed roads.
How to read this
These are NOAA’s official 1991–2020 climate normals for one weather station, not a model of the whole park. The station is the one with complete temperature and precipitation normals nearest to a visitor center. Highs and lows are daily averages for the month; “wet days” are days with at least 0.01 inch of precipitation. Mountain parks can be 10–20 °F cooler at their high points than at the station, and the NPS weather page for Great Basin is the place for current conditions and seasonal closures.
Sunrise and sunset are computed with the NOAA solar equations for the park’s coordinates and shown in America/Los Angeles time for the 15th of each month of 2027; they are accurate to about a minute.
Sources · 3
- 1.U.S. Climate Normals 1991–2020 — monthly normals station inventory · National Centers for Environmental Information (NOAA)
- 2.Great Basin National Park — Weather (nps.gov) · National Park Service
- 3.Great Basin National Park — Visitor Use Statistics · National Park Service (IRMA)
FAQ
Great Basin weather questions
- What is the hottest month at Great Basin?
- July, with an average high of 85°F and an average low of 58°F at Great Basin NP (NOAA 1991–2020 normals). The station averages 13 days a year at or above 90°F.
- How cold does Great Basin get in winter?
- December is the coldest month, averaging a low of 20°F and a high of 40°F at Great Basin NP. About 162 nights a year drop to freezing or below.
- Does it snow at Great Basin?
- Yes. Great Basin NP averages 66.7 inches of snow a year, mostly in January, February, March, April, October, November and December. Higher ground in the park gets more.
- When is the rainy season at Great Basin?
- April is the wettest month on average (1.6 inches of precipitation at Great Basin NP); the station's annual total is 14.3 inches.
- How many hours of daylight does Great Basin get?
- About 14h 53m on June 15 and 9h 27m on December 15 (sunrise 5:11 AM, sunset 8:04 PM in June; 6:48 AM to 4:16 PM in December, America/Los Angeles time).
- What is the best month to visit Great Basin for weather?
- By NOAA's normals, average highs sit between 55°F and 85°F in April, May, June, July, August, September and October. Of those, April and May are also well below the park's peak crowds. Weather in the park varies with elevation; this is the Great Basin NP station.
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