Average annual temperature is 15.5 °C
Absolute maximum temperature: 38.0 °C
Absolute minimum temperature: -6.3 °C
Number of sunny days: 184 days
Number of rainy days: 178 days
Number of snow days: 3 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) | 19.1 | 24.7 | 25.4 | 28.7 | 30.2 | 33.6 | 37.2 | 38.0 | 33.1 | 29.9 | 26.7 | 19.0 |
| Average daytime temperature (°C) | 11.5 | 15.0 | 15.5 | 20.8 | 25.5 | 29.4 | 31.3 | 30.5 | 28.3 | 22.0 | 16.0 | 12.1 |
| Average temperature (°C) | 7.0 | 8.8 | 9.2 | 14.3 | 19.0 | 22.6 | 25.4 | 24.7 | 21.9 | 16.2 | 9.8 | 6.8 |
| Average night temperature (°C) | 3.5 | 4.5 | 4.4 | 8.8 | 13.5 | 16.9 | 20.7 | 19.9 | 16.6 | 11.7 | 5.5 | 3.1 |
| Absolute minimum temperature (°C) | -4.4 | -5.6 | -6.3 | 1.1 | 5.6 | 10.7 | 16.8 | 14.6 | 12.2 | -0.6 | -4.8 | -5.3 |
| 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 | 14.0 | 12.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.9 | 10.8 | 12.0 | 13.2 | 14.2 | 14.7 | 14.4 | 13.6 | 12.4 | 11.2 | 10.2 | 9.7 |
| 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) | 4.8 | 6.7 | 7.9 | 9.4 | 10.5 | 11.0 | 11.1 | 10.5 | 10.6 | 7.7 | 7.6 | 5.9 |
| Precipitation (mm) | 127 | 83 | 165 | 103 | 75 | 99 | 98 | 78 | 35 | 61 | 52 | 70 |
| Sunny days | 10 | 14 | 19 | 18 | 15 | 14 | 7 | 10 | 18 | 19 | 22 | 18 |
| Rainy days | 20 | 13 | 11 | 12 | 16 | 16 | 24 | 21 | 12 | 12 | 8 | 13 |
| Snow days | 1 | 1 | 1 | 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