Average annual temperature is 21.6 °C
Absolute maximum temperature: 43.1 °C
Absolute minimum temperature: -3.4 °C
Number of sunny days: 210 days
Number of rainy days: 155 days
Look at detailed online map of Greenock
* Weather data for Greenock 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) | 28.9 | 28.2 | 30.7 | 34.7 | 34.1 | 40.9 | 42.5 | 43.1 | 42.6 | 34.7 | 29.0 | 26.3 |
| Average daytime temperature (°C) | 18.2 | 18.6 | 23.6 | 25.0 | 28.7 | 35.3 | 38.7 | 40.7 | 35.6 | 27.4 | 20.1 | 18.5 |
| Average temperature (°C) | 12.5 | 11.6 | 16.9 | 18.7 | 23.3 | 29.1 | 32.7 | 34.5 | 29.8 | 21.9 | 14.9 | 12.2 |
| Average night temperature (°C) | 7.9 | 7.0 | 12.4 | 14.0 | 18.8 | 23.7 | 27.0 | 28.0 | 24.4 | 17.3 | 10.6 | 7.4 |
| Absolute minimum temperature (°C) | -3.4 | -2.7 | 2.2 | 8.1 | 13.6 | 19.8 | 24.1 | 23.9 | 19.1 | 4.7 | 1.6 | 0.2 |
| 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 | 13.0 | 12.0 | 11.0 | 10.0 | 10.0 |
| Daylight mean duration (h) | 10.3 | 11.1 | 12.0 | 13.0 | 13.8 | 14.2 | 14.0 | 13.3 | 12.4 | 11.4 | 10.5 | 10.1 |
| Daylight minimum duration (h) | 10.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 13.0 | 12.0 | 11.0 | 10.0 | 10.0 | 10.0 |
| Sunshine mean duration (h) | 7.4 | 6.9 | 8.0 | 7.8 | 8.9 | 10.9 | 11.9 | 12.3 | 10.4 | 8.6 | 7.3 | 7.5 |
| Precipitation (mm) | 60 | 123 | 124 | 103 | 181 | 152 | 62 | 6 | 42 | 145 | 35 | 98 |
| Sunny days | 21 | 14 | 14 | 10 | 12 | 7 | 20 | 30 | 18 | 19 | 22 | 23 |
| Rainy days | 10 | 14 | 17 | 20 | 19 | 23 | 11 | 1 | 12 | 12 | 8 | 8 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Greenock during the most sunny months:
The largest precipitation sum in Greenock is at