Average annual temperature is 16.9 °C
Absolute maximum temperature: 36.3 °C
Absolute minimum temperature: -5.2 °C
Number of sunny days: 193 days
Number of rainy days: 172 days
Look at detailed online map of Johnston County
* Weather data for Johnston 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) | 22.1 | 27.0 | 28.7 | 29.6 | 30.7 | 33.2 | 35.0 | 36.3 | 34.1 | 27.6 | 25.1 | 22.3 |
| Average daytime temperature (°C) | 14.5 | 16.7 | 18.4 | 23.3 | 24.6 | 29.2 | 32.5 | 32.2 | 27.8 | 22.7 | 16.6 | 14.3 |
| Average temperature (°C) | 9.0 | 11.2 | 12.2 | 16.7 | 19.0 | 23.1 | 27.0 | 26.6 | 22.2 | 16.9 | 10.7 | 8.5 |
| Average night temperature (°C) | 4.5 | 6.9 | 6.9 | 11.0 | 13.8 | 17.6 | 22.3 | 21.8 | 17.3 | 12.0 | 6.0 | 3.8 |
| Absolute minimum temperature (°C) | -2.7 | -5.2 | -2.8 | 1.7 | 6.7 | 11.5 | 19.2 | 18.3 | 12.0 | 5.0 | -5.0 | -3.2 |
| 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 | 14.0 | 14.0 | 13.0 | 12.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 10.1 | 10.9 | 12.0 | 13.1 | 14.0 | 14.5 | 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 | 13.0 | 12.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 6.2 | 6.7 | 8.2 | 9.3 | 10.0 | 11.2 | 11.5 | 10.8 | 9.9 | 9.0 | 7.5 | 6.7 |
| Precipitation (mm) | 98 | 95 | 69 | 180 | 67 | 79 | 102 | 106 | 95 | 20 | 78 | 145 |
| Sunny days | 16 | 12 | 18 | 15 | 15 | 11 | 9 | 15 | 18 | 23 | 22 | 19 |
| Rainy days | 15 | 16 | 13 | 15 | 16 | 19 | 22 | 16 | 12 | 8 | 8 | 12 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Johnston County during the most sunny months:
The largest precipitation sum in Johnston County is at