Tucson Weather Year Round
Three facts to hold onto: winters average in the high 60s, summers average over 100°F, and the sun shines on roughly 350 days a year. Everything else is scheduling.
By Marisol Rodriguez, editor & host of TucsonBound
| Month | Avg high | Avg low | What it feels like |
|---|---|---|---|
| Jan | 67°F | 39°F | Perfect. Jackets at night, patio days. |
| Feb | 71°F | 42°F | Peak season. Wildflower hints. |
| Mar | 78°F | 47°F | The best month, locals will tell you. |
| Apr | 86°F | 53°F | Warm, dry, glorious. |
| May | 95°F | 62°F | Summer previews begin. |
| Jun | 105°F | 72°F | The dry furnace. Mornings only outside. |
| Jul | 102°F | 76°F | Monsoon: afternoon storms, humidity up. |
| Aug | 99°F | 74°F | Monsoon continues. Dramatic skies. |
| Sep | 97°F | 69°F | Transitioning back. |
| Oct | 88°F | 58°F | Relief month. Everyone's outside. |
| Nov | 76°F | 46°F | Perfection returns. |
| Dec | 66°F | 38°F | Sweater weather, Tucson-style. |
The monsoon (June 15 – September 30)
Arizona's official monsoon season brings the year's only real rain — dramatic afternoon storms that flood desert washes and cool the evenings. Newcomers learn two rules fast: never drive through a flooded wash (it becomes a crime if you need rescue — the "Stupid Motorist Law" is real), and watch the sky before heading out on a July hike.
How locals actually schedule
June–September: outdoors before 10am, evenings after sunset, afternoons in A/C. October–May: everything, everywhere, all day. Mt. Lemmon — an hour up and 30° cooler — is the summer escape valve, and the desert in February makes the whole trade worthwhile. See what there is to do in it all year.
Coming for the season rather than for good? Our direct answer to what winter is like in Tucson for snowbirds covers how the season feels week to week — the jacket mornings, the patio middays, and the peak-season crowds.