Silver Lake, Indiana has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 41.2 °F (low) to 59.6 °F (high). Annual precipitation averages 39.9 Inches. Silver Lake is located in USDA Plant Hardiness Zone 6a. The growing season typically runs from the last frost around Apr. 21 - Apr. 30 through the first frost around Oct. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 18.2 °F | 32.1 °F | 2.58 in. |
| February | 20.4 °F | 36.1 °F | 2.14 in. |
| March | 28.4 °F | 47.1 °F | 2.5 in. |
| April | 39.0 °F | 59.8 °F | 3.78 in. |
| May | 50.3 °F | 70.8 °F | 4.48 in. |
| June | 59.8 °F | 79.9 °F | 4.59 in. |
| July | 63.3 °F | 82.9 °F | 4.28 in. |
| August | 61.3 °F | 81.3 °F | 3.9 in. |
| September | 53.8 °F | 75.7 °F | 3.16 in. |
| October | 42.9 °F | 63.1 °F | 2.98 in. |
| November | 33.1 °F | 49.0 °F | 3.16 in. |
| December | 24.2 °F | 37.0 °F | 2.38 in. |
| Annual | 41.2 °F | 59.6 °F | 39.93 in. |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| Average Days With Frost | 125-150 Days |
| Plant Hardiness Zone | Zone 6a : -10°F to -5°F |
| Plant Hardiness Zone - 2012 | Zone 5b : -15°F to -10°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |