Saguaro weather, month by month
- Jun high
- 102°F
- hottest month
- Dec low
- 39°F
- coldest month
- Rain + snowmelt
- 11.1in / yr
- wettest: Jul
- Snowfall
- 0.0in / yr
- rare
- Days ≥ 90°F
- 161/ yr
- Nights ≤ 32°F
- 11/ yr
Tucson 17 NW
Month by month
| Month | High | Low | Rain | Wet days | Sunrise | Sunset | Daylight | Crowds |
|---|---|---|---|---|---|---|---|---|
| Jan | 67° | 39° | 1.0″ | 4 | 7:24 AM | 5:40 PM | 10h 16m | 77 |
| Feb | 70° | 41° | 1.0″ | 4 | 7:06 AM | 6:09 PM | 11h 03m | 82 |
| Mar | 76° | 46° | 0.7″ | 3 | 6:33 AM | 6:31 PM | 11h 57m | 100 |
| Apr | 84° | 51° | 0.3″ | 1 | 5:54 AM | 6:52 PM | 12h 58m | 72 |
| May | 93° | 59° | 0.2″ | 1 | 5:25 AM | 7:13 PM | 13h 48m | 41 |
| Jun | 102° | 69° | 0.3″ | 1 | 5:16 AM | 7:31 PM | 14h 15m | 26 |
| Jul | 102° | 74° | 2.1″ | 8 | 5:27 AM | 7:31 PM | 14h 04m | 23 |
| Aug | 100° | 73° | 2.0″ | 8 | 5:47 AM | 7:08 PM | 13h 21m | 23 |
| Sep | 97° | 68° | 1.3″ | 5 | 6:07 AM | 6:30 PM | 12h 23m | 25 |
| Oct | 87° | 57° | 0.7″ | 3 | 6:27 AM | 5:51 PM | 11h 25m | 35 |
| Nov | 76° | 47° | 0.5″ | 2 | 6:52 AM | 5:23 PM | 10h 31m | 50 |
| Dec | 66° | 39° | 1.0″ | 4 | 7:16 AM | 5:20 PM | 10h 03m | 60 |
Sweet spot: November combines 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 Saguaro 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/Phoenix 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.Saguaro National Park — Weather (nps.gov) · National Park Service
- 3.Saguaro National Park — Visitor Use Statistics · National Park Service (IRMA)
FAQ
Saguaro weather questions
- What is the hottest month at Saguaro?
- June, with an average high of 102°F and an average low of 69°F at Tucson 17 NW (NOAA 1991–2020 normals). The station averages 161 days a year at or above 90°F.
- How cold does Saguaro get in winter?
- December is the coldest month, averaging a low of 39°F and a high of 66°F at Tucson 17 NW. About 11 nights a year drop to freezing or below.
- Does it snow at Saguaro?
- Tucson 17 NW records almost no snowfall (0.0 inches a year). Higher elevations in the park can differ.
- When is the rainy season at Saguaro?
- July is the wettest month on average (2.1 inches of precipitation at Tucson 17 NW); the station's annual total is 11.1 inches.
- How many hours of daylight does Saguaro get?
- About 14h 15m on June 15 and 10h 03m on December 15 (sunrise 5:16 AM, sunset 7:31 PM in June; 7:16 AM to 5:20 PM in December, America/Phoenix time).
- What is the best month to visit Saguaro for weather?
- By NOAA's normals, average highs sit between 55°F and 85°F in January, February, March, April, November and December. Of those, November is also well below the park's peak crowds. Weather in the park varies with elevation; this is the Tucson 17 NW station.
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