
| Month | Low | High |
|---|---|---|
| Jan | 18.5°F | 34.1°F |
| Feb | 20.4°F | 37.3°F |
| Mar | 28.4°F | 47.3°F |
| Apr | 38.1°F | 59.2°F |
| May | 48.4°F | 70.8°F |
| Jun | 56.7°F | 78.2°F |
| Jul | 61.5°F | 82.6°F |
| Aug | 60.1°F | 80.5°F |
| Sept | 52.6°F | 72.4°F |
| Oct | 41.7°F | 61.2°F |
| Nov | 33.7°F | 49.3°F |
| Dec | 24.2°F | 38.6°F |
Avoca's coldest month is January when the average temperature overnight is 18.5°F. In July, the warmest month, the average day time temperature rises to 82.6°F.

| Month | Precipitation |
|---|---|
| Jan | 2.46in. |
| Feb | 2.08in. |
| Mar | 2.69in. |
| Apr | 3.28in. |
| May | 3.69in. |
| Jun | 3.97in. |
| Jul | 3.74in. |
| Aug | 3.10in. |
| Sept | 3.86in. |
| Oct | 3.02in. |
| Nov | 3.12in. |
| Dec | 2.55in. |
The driest month in Avoca is February with 2.08 inches of precipitation, and with 3.97 inches June is the wettest month.