Duncan, AZ
Climate overview — based on NOAA 1991-2020 normals from DUNCAN, AZ US.
Year-round temperatures (°F)
Climate summary
Duncan has an annual average temperature of 61.4°F with about 10.4 inches of precipitation per year. The warmest month is June (average high 98.1°F), and the coldest is December (average low 24.9°F). August is typically the wettest month (2.18 in) and April the driest (0.17 in).
Best time to visit Duncan
Full guide →Climate change signal
All-time records →116 of 366 (31.7%) of Duncan's all-time daily heat records have been set since 2015. If records were spread evenly across the station's history, only about 5% would fall in any given decade.
| 1900s | 27 | |
| 1940s | 4 | |
| 1950s | 20 | |
| 1960s | 4 | |
| 1970s | 19 | |
| 1980s | 47 | |
| 1990s | 38 | |
| 2000s | 73 | |
| 2010s | 43 | |
| 2020s | 91 |
Bars: number of all-time daily heat records still standing that were set in each decade.
Monthly averages
| Month | Avg High | Avg Low | Avg Temp | Precipitation | Snow | Rainy days |
|---|---|---|---|---|---|---|
| January | 60.2°F | 25.1°F | 42.6°F | 0.94 in | — | 4 |
| February | 64.9°F | 28.5°F | 46.7°F | 0.84 in | — | 4 |
| March | 72.5°F | 33.1°F | 52.8°F | 0.50 in | — | 3 |
| April | 80.5°F | 38.6°F | 59.5°F | 0.17 in | — | 1 |
| May | 88.9°F | 47.1°F | 68.0°F | 0.29 in | — | 2 |
| June | 98.1°F | 57.2°F | 77.6°F | 0.25 in | — | 2 |
| July | 97.5°F | 65.5°F | 81.5°F | 1.68 in | — | 7 |
| August | 95.5°F | 64.6°F | 80.0°F | 2.18 in | — | 7 |
| September | 90.7°F | 56.4°F | 73.5°F | 1.21 in | — | 5 |
| October | 81.4°F | 42.8°F | 62.1°F | 0.71 in | — | 3 |
| November | 69.3°F | 30.8°F | 50.1°F | 0.64 in | — | 3 |
| December | 59.2°F | 24.9°F | 42.0°F | 1.00 in | — | 4 |
Climate twins of Duncan
Why these? →The most climatically similar US cities at least 140 miles away (by monthly temperature + precipitation pattern).