Average annual temperature is 11.9 °C
Absolute maximum temperature: 40.6 °C
Absolute minimum temperature: -6.6 °C
Number of sunny days: 178 days
Number of rainy days: 186 days
Number of snow days: 1 day
Look at detailed online map of Santiam City (historical)
* Weather data for Santiam City (historical) 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) | 14.5 | 12.1 | 17.2 | 28.6 | 32.2 | 32.2 | 36.5 | 40.6 | 32.1 | 28.3 | 17.3 | 17.1 |
| Average daytime temperature (°C) | 8.9 | 8.9 | 10.7 | 14.0 | 23.3 | 26.6 | 30.7 | 31.5 | 24.2 | 18.3 | 11.4 | 10.5 |
| Average temperature (°C) | 4.8 | 3.4 | 5.0 | 8.6 | 15.4 | 17.6 | 21.3 | 22.5 | 17.0 | 12.4 | 7.4 | 7.0 |
| Average night temperature (°C) | 1.6 | 0.0 | 1.5 | 5.0 | 9.6 | 10.9 | 14.0 | 15.7 | 11.9 | 8.6 | 4.5 | 4.6 |
| Absolute minimum temperature (°C) | -5.4 | -6.6 | -2.2 | -1.1 | 5.0 | 6.4 | 10.4 | 11.3 | 7.7 | 0.5 | -3.2 | -1.4 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 9.0 | 11.0 | 12.0 | 14.0 | 15.0 | 15.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.2 | 10.4 | 11.9 | 13.5 | 14.8 | 15.5 | 15.2 | 14.0 | 12.5 | 11.0 | 9.6 | 8.9 |
| Daylight minimum duration (h) | 8.0 | 9.0 | 11.0 | 12.0 | 14.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 | 8.0 |
| Sunshine mean duration (h) | 3.6 | 5.5 | 6.1 | 6.9 | 11.5 | 13.4 | 13.5 | 12.1 | 9.4 | 6.6 | 4.6 | 3.0 |
| Precipitation (mm) | 129 | 94 | 148 | 194 | 22 | 10 | 7 | 16 | 79 | 103 | 144 | 268 |
| Sunny days | 7 | 12 | 3 | 6 | 21 | 26 | 28 | 25 | 17 | 13 | 12 | 8 |
| Rainy days | 24 | 15 | 28 | 24 | 10 | 4 | 3 | 6 | 13 | 18 | 18 | 23 |
| Snow days | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Santiam City (historical) during the most sunny months:
Months with the longest average daylight duration in Santiam City (historical):
The largest precipitation sum in Santiam City (historical) is at