Average annual temperature is 20.2 °C
Absolute maximum temperature: 41.2 °C
Absolute minimum temperature: -1.8 °C
Number of sunny days: 193 days
Number of rainy days: 172 days
Look at detailed online map of Gresham
* Weather data for Gresham 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) | 23.8 | 25.9 | 27.0 | 29.6 | 31.2 | 37.5 | 38.0 | 41.2 | 39.1 | 32.3 | 27.9 | 24.0 |
| Average daytime temperature (°C) | 16.0 | 17.7 | 21.4 | 23.0 | 27.4 | 32.6 | 35.4 | 38.7 | 33.1 | 25.8 | 19.1 | 16.3 |
| Average temperature (°C) | 11.3 | 11.9 | 15.9 | 17.2 | 22.4 | 26.9 | 30.0 | 32.9 | 27.6 | 20.4 | 13.9 | 11.0 |
| Average night temperature (°C) | 7.5 | 8.0 | 11.8 | 12.9 | 18.2 | 22.4 | 25.4 | 27.2 | 23.0 | 16.2 | 10.0 | 6.8 |
| Absolute minimum temperature (°C) | -0.8 | -1.8 | 0.3 | 8.4 | 11.6 | 19.0 | 22.3 | 22.1 | 19.4 | 3.3 | 0.6 | 0.3 |
| 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 | 11.0 | 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) | 6.7 | 6.7 | 8.0 | 8.5 | 9.6 | 10.7 | 11.7 | 12.2 | 10.7 | 8.3 | 7.0 | 7.7 |
| Precipitation (mm) | 118 | 126 | 175 | 136 | 94 | 114 | 40 | 14 | 27 | 86 | 72 | 53 |
| Sunny days | 17 | 12 | 12 | 11 | 12 | 6 | 20 | 26 | 17 | 20 | 19 | 21 |
| Rainy days | 14 | 16 | 19 | 19 | 19 | 24 | 11 | 5 | 13 | 11 | 11 | 10 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Gresham during the most sunny months:
The largest precipitation sum in Gresham is at