Average annual temperature is 9.8 °C
Absolute maximum temperature: 31.7 °C
Absolute minimum temperature: -19.2 °C
Number of sunny days: 130 days
Number of rainy days: 205 days
Number of snow days: 30 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) | 13.2 | 18.0 | 16.1 | 27.1 | 30.1 | 31.7 | 30.4 | 30.6 | 30.5 | 26.3 | 15.6 | 13.6 |
| Average daytime temperature (°C) | 4.1 | 7.8 | 6.8 | 16.0 | 20.3 | 23.1 | 26.3 | 24.5 | 22.0 | 15.5 | 8.3 | 6.4 |
| Average temperature (°C) | 0.5 | 0.7 | 1.3 | 9.1 | 13.4 | 17.5 | 20.7 | 19.1 | 16.6 | 11.2 | 3.6 | 2.8 |
| Average night temperature (°C) | -2.1 | -4.0 | -2.5 | 3.7 | 7.3 | 12.5 | 16.1 | 15.0 | 12.5 | 7.7 | 0.3 | 0.2 |
| Absolute minimum temperature (°C) | -9.8 | -19.2 | -8.6 | -5.2 | 0.7 | 8.1 | 12.4 | 10.3 | 7.8 | -0.3 | -8.6 | -6.2 |
| 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 | 15.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.6 | 10.6 | 11.9 | 13.3 | 14.5 | 15.1 | 14.8 | 13.8 | 12.5 | 11.1 | 9.9 | 9.2 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 14.0 | 14.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 2.1 | 6.1 | 5.8 | 8.1 | 10.7 | 10.4 | 11.5 | 10.6 | 8.9 | 5.9 | 5.8 | 3.4 |
| Precipitation (mm) | 145 | 78 | 127 | 96 | 53 | 143 | 134 | 125 | 39 | 65 | 62 | 105 |
| Sunny days | 4 | 8 | 7 | 13 | 22 | 9 | 9 | 8 | 11 | 12 | 16 | 11 |
| Rainy days | 17 | 15 | 16 | 16 | 9 | 21 | 22 | 23 | 19 | 19 | 11 | 17 |
| Snow days | 10 | 5 | 8 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 3 |
The best time to visit Gresham during the most sunny months:
The largest precipitation sum in Gresham is at