Average annual temperature is 12.3 °C
Absolute maximum temperature: 33.7 °C
Absolute minimum temperature: -12.1 °C
Number of sunny days: 176 days
Number of rainy days: 181 days
Number of snow days: 8 days
Look at detailed online map of Gridley
* Weather data for Gridley 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) | 17.0 | 19.2 | 19.6 | 26.2 | 29.7 | 31.4 | 33.7 | 33.6 | 31.0 | 28.7 | 24.2 | 15.2 |
| Average daytime temperature (°C) | 5.5 | 9.9 | 10.3 | 17.3 | 22.6 | 26.6 | 28.5 | 27.1 | 24.8 | 18.5 | 11.7 | 8.2 |
| Average temperature (°C) | 2.1 | 3.6 | 4.5 | 10.9 | 16.5 | 20.6 | 23.3 | 22.1 | 19.5 | 13.6 | 6.2 | 4.2 |
| Average night temperature (°C) | -0.7 | -0.7 | 0.3 | 5.5 | 10.9 | 15.1 | 18.5 | 17.5 | 14.9 | 9.6 | 2.2 | 1.4 |
| Absolute minimum temperature (°C) | -10.2 | -12.1 | -8.3 | -3.3 | 1.1 | 9.5 | 14.5 | 11.7 | 10.0 | -3.7 | -9.2 | -7.0 |
| 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 | 14.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.7 | 10.7 | 12.0 | 13.3 | 14.4 | 15.0 | 14.7 | 13.7 | 12.5 | 11.1 | 10.0 | 9.4 |
| 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) | 3.6 | 7.3 | 6.9 | 8.9 | 10.6 | 10.8 | 12.3 | 10.8 | 9.6 | 7.3 | 7.8 | 4.3 |
| Precipitation (mm) | 135 | 83 | 203 | 81 | 71 | 70 | 103 | 88 | 43 | 73 | 35 | 46 |
| Sunny days | 8 | 15 | 14 | 17 | 17 | 13 | 9 | 17 | 17 | 14 | 22 | 13 |
| Rainy days | 19 | 12 | 15 | 13 | 14 | 17 | 22 | 14 | 13 | 16 | 8 | 18 |
| Snow days | 4 | 1 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 |
The best time to visit Gridley during the most sunny months:
The largest precipitation sum in Gridley is at