Average annual temperature is 10.9 °C
Absolute maximum temperature: 36.9 °C
Absolute minimum temperature: -24.6 °C
Number of sunny days: 192 days
Number of rainy days: 155 days
Number of snow days: 18 days
Look at detailed online map of Cortland
* Weather data for Cortland United States is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 9.3 | 14.7 | 20.5 | 25.4 | 31.8 | 32.7 | 34.2 | 36.9 | 34.4 | 27.6 | 19.1 | 14.2 |
| Average daytime temperature (°C) | 2.2 | 4.5 | 7.5 | 16.2 | 23.0 | 28.2 | 28.2 | 27.9 | 24.5 | 16.5 | 9.2 | 6.1 |
| Average temperature (°C) | -1.7 | -0.9 | 2.4 | 9.4 | 16.1 | 21.6 | 22.7 | 22.3 | 19.2 | 12.0 | 4.3 | 2.5 |
| Average night temperature (°C) | -4.5 | -5.0 | -1.4 | 3.7 | 10.2 | 15.5 | 17.8 | 17.6 | 15.2 | 8.3 | 0.4 | 0.1 |
| Absolute minimum temperature (°C) | -24.6 | -22.8 | -12.3 | -3.3 | 0.5 | 7.6 | 13.3 | 11.2 | 9.1 | -2.7 | -11.7 | -8.4 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 9.0 | 11.0 | 12.0 | 13.0 | 14.0 | 15.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.5 | 10.6 | 11.9 | 13.4 | 14.6 | 15.2 | 14.9 | 13.8 | 12.5 | 11.1 | 9.8 | 9.2 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 14.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 3.6 | 7.5 | 6.6 | 9.0 | 10.9 | 12.2 | 11.9 | 10.6 | 8.2 | 6.8 | 7.1 | 3.9 |
| Precipitation (mm) | 64 | 76 | 97 | 84 | 49 | 18 | 148 | 52 | 110 | 94 | 37 | 70 |
| Sunny days | 13 | 16 | 14 | 14 | 21 | 20 | 14 | 17 | 14 | 12 | 22 | 15 |
| Rainy days | 9 | 9 | 14 | 16 | 10 | 10 | 17 | 14 | 16 | 18 | 7 | 15 |
| Snow days | 9 | 3 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 |
The best time to visit Cortland during the most sunny months:
The largest precipitation sum in Cortland is at