Average annual temperature is 15.7 °C
Absolute maximum temperature: 35.4 °C
Absolute minimum temperature: -6.1 °C
Number of sunny days: 206 days
Number of rainy days: 159 days
Look at detailed online map of Guilford County
* Weather data for Guilford County 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) | 18.7 | 24.6 | 27.2 | 29.4 | 29.9 | 31.4 | 35.1 | 35.0 | 35.4 | 28.3 | 27.5 | 20.4 |
| Average daytime temperature (°C) | 12.1 | 15.1 | 16.3 | 22.0 | 24.1 | 27.4 | 32.0 | 31.1 | 27.4 | 22.5 | 16.4 | 12.6 |
| Average temperature (°C) | 7.0 | 9.5 | 10.3 | 15.2 | 18.1 | 21.2 | 26.0 | 25.1 | 21.6 | 16.3 | 10.0 | 7.1 |
| Average night temperature (°C) | 3.0 | 5.0 | 5.2 | 9.0 | 12.8 | 15.9 | 21.0 | 20.3 | 16.7 | 11.4 | 5.0 | 2.8 |
| Absolute minimum temperature (°C) | -4.5 | -6.1 | -4.4 | 0.1 | 5.2 | 10.5 | 18.0 | 16.8 | 12.0 | 4.6 | -5.3 | -4.3 |
| 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 | 9.0 |
| Daylight mean duration (h) | 10.0 | 10.9 | 12.0 | 13.1 | 14.1 | 14.6 | 14.3 | 13.5 | 12.4 | 11.3 | 10.3 | 9.8 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 14.0 | 12.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 5.9 | 6.7 | 8.3 | 9.0 | 9.7 | 10.8 | 12.0 | 10.8 | 9.6 | 9.1 | 8.1 | 6.4 |
| Precipitation (mm) | 100 | 73 | 75 | 110 | 38 | 90 | 51 | 93 | 41 | 29 | 47 | 146 |
| Sunny days | 16 | 17 | 16 | 16 | 14 | 13 | 15 | 15 | 18 | 23 | 25 | 18 |
| Rainy days | 15 | 11 | 15 | 14 | 17 | 17 | 16 | 16 | 12 | 8 | 5 | 13 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Guilford County during the most sunny months:
The largest precipitation sum in Guilford County is at