The official National Weather Service forecast for Sonoita — 31.6795°N, 110.6567°W, 22.4 miles from I-10. Forecasts here are written by NWS TWC, this county’s forecast office.
| Santa Cruz County | J | F | M | A | M | J | J | A | S | O | N | D | Year |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 61 | 64 | 69 | 76 | 84 | 93 | 90 | 89 | 86 | 79 | 70 | 61 | 77 |
| Avg low °F | 31 | 33 | 38 | 42 | 49 | 60 | 65 | 63 | 59 | 48 | 38 | 32 | 46 |
| Precip in | 1.1 | 1.0 | 0.7 | 0.3 | 0.2 | 0.5 | 4.4 | 3.6 | 2.1 | 0.9 | 0.6 | 1.2 | 16.6 |
1996–2025 normals for Santa Cruz County — the climate division Sonoita sits in. All-time county record high 105.7°F (1990-06-26); record low 4.4°F (2011-02-04). Source: NOAA / National Weather Service.