You should expect the average temperature in Old Tucson in the time of December is 10. Throughout the month you should see a high of 18 and average daily low being 5. Our table below has the full details:
| Month | Degrees Celsius |
|---|---|
| Temperature | 10 |
| High Temperature | 18 |
| Low Temperature | 5 |
Useful Links: Old Tucson Weather: Average Weather & Yearly Climate