Average annual temperature is 9.2 °C
Absolute maximum temperature: 28.0 °C
Absolute minimum temperature: -17.6 °C
Number of sunny days: 140 days
Number of rainy days: 201 days
Number of snow days: 24 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) | 16.8 | 16.2 | 17.4 | 23.8 | 22.0 | 25.0 | 28.0 | 26.9 | 27.3 | 22.0 | 16.1 | 13.4 |
| Average daytime temperature (°C) | 5.2 | 7.9 | 8.1 | 15.4 | 16.1 | 19.7 | 24.2 | 23.3 | 19.8 | 14.6 | 8.3 | 5.9 |
| Average temperature (°C) | 0.8 | 2.4 | 2.2 | 9.4 | 11.3 | 15.2 | 19.7 | 18.5 | 15.2 | 10.4 | 3.2 | 2.0 |
| Average night temperature (°C) | -2.4 | -1.9 | -2.1 | 4.5 | 7.0 | 11.5 | 16.0 | 14.8 | 11.5 | 6.9 | -0.7 | -1.0 |
| Absolute minimum temperature (°C) | -10.5 | -17.6 | -13.9 | -3.4 | -2.4 | 6.6 | 12.1 | 9.3 | 6.9 | -1.2 | -11.9 | -8.6 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 14.0 | 14.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.8 | 10.7 | 12.0 | 13.2 | 14.3 | 14.9 | 14.6 | 13.7 | 12.4 | 11.2 | 10.1 | 9.5 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 3.7 | 6.4 | 6.9 | 8.9 | 9.6 | 10.2 | 11.9 | 10.4 | 9.0 | 7.3 | 6.9 | 4.7 |
| Precipitation (mm) | 105 | 99 | 104 | 86 | 155 | 107 | 82 | 105 | 109 | 54 | 67 | 99 |
| Sunny days | 4 | 12 | 11 | 14 | 14 | 10 | 5 | 10 | 15 | 13 | 19 | 13 |
| Rainy days | 21 | 13 | 12 | 15 | 17 | 20 | 26 | 21 | 15 | 18 | 10 | 13 |
| Snow days | 6 | 3 | 8 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 5 |
The best time to visit Cortland during the most sunny months:
The largest precipitation sum in Cortland is at