The official National Weather Service forecast for Joseph City — 34.9559°N, 110.334°W, 1 miles from I-40. Forecasts here are written by NWS FGZ, this county’s forecast office.
| Navajo County | J | F | M | A | M | J | J | A | S | O | N | D | Year |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 46 | 51 | 59 | 67 | 76 | 88 | 90 | 87 | 81 | 69 | 57 | 46 | 68 |
| Avg low °F | 20 | 23 | 29 | 35 | 42 | 52 | 60 | 58 | 51 | 38 | 28 | 20 | 38 |
| Precip in | 0.8 | 0.8 | 0.9 | 0.4 | 0.3 | 0.2 | 1.6 | 1.7 | 1.2 | 1.0 | 0.6 | 0.8 | 10.3 |
1996–2025 normals for Navajo County — the climate division Joseph City sits in. All-time county record high 101.9°F (2021-07-11); record low -17.8°F (1971-01-07). Source: NOAA / National Weather Service.