Monthly climate averages for Normal, United States. Based on 10-year ERA5 reanalysis data.
Cfa Humid Subtropical
Climate OverviewNormal, United States in August has warm conditions, with highs averaging 27.9°C (82°F). Rain falls on about 10 days this month.
This month falls at the end of Summer.
Temperatures remain fairly steady throughout August, with daily highs around 28°C (82°F).
August sees fairly even rainfall, totalling about 93 mm across the month.
Expect around 11.8h of sunshine at the start of August, decreasing to 11.0h by the end.
The warmest days tend to fall around the 10th, averaging 28.7°C (84°F).
Compared to July, this month is about 1°C cooler with 2 fewer rainy days.
Daily averages based on historical data (2016–2025)
Daytime temperatures around 28°C (82°F) are ideal for full-day outdoor exploration.
Rain usually comes in shorter passing showers rather than all-day rain.
Recent yearly records for August have stayed close to the long-run average.
| Month | Temp | Feels Like | Rain | Sun | Humidity | UV | Status | Details |
|---|---|---|---|---|---|---|---|---|
| January | 2°C / -6°C | -3°C / -11°C | 9days (59 mm) Wet | 5.2h Fair | 72% Muggy | 2.4 Moderate | Poor | View Details |
| February | 5°C / -4°C | 1°C / -10°C | 9days (60 mm) Wet | 6.9h Fair | 69% Muggy | 3.6 Moderate | Poor | View Details |
| March | 12°C / 2°C | 8°C / -3°C | 11days (107 mm) Wet | 7.6h Good | 66% Muggy | 4.8 Moderate | Poor | View Details |
| April | 17°C / 6°C | 14°C / 2°C | 12days (114 mm) Wet | 8.9h Good | 65% Muggy | 5.5 High | Fair | View Details |
| May best | 23°C / 13°C | 23°C / 11°C | 13days (124 mm) Wet | 10.1h Excellent | 69% Muggy | 6.7 High | Excellent | View Details |
| June best | 28°C / 18°C | 30°C / 18°C | 11days (106 mm) Wet | 12h Excellent | 67% Muggy | 7.3 Very High | Excellent | View Details |
| July best | 29°C / 20°C | 32°C / 22°C | 12days (111 mm) Wet | 12h Excellent | 74% Muggy | 7.2 Very High | Good | View Details |
| August best | 28°C / 19°C | 30°C / 20°C | 10days (92 mm) Wet | 11.1h Excellent | 72% Muggy | 6.7 High | Excellent | View Details |
| September best | 26°C / 17°C | 27°C / 16°C | 7days (62 mm) Good | 9.9h Good | 67% Muggy | 5.6 High | Excellent | View Details |
| October | 19°C / 10°C | 17°C / 7°C | 9days (94 mm) Wet | 7.5h Good | 66% Muggy | 4.2 Moderate | Good | View Details |
| November | 11°C / 2°C | 7°C / -2°C | 7days (59 mm) Good | 6.5h Fair | 68% Muggy | 2.8 Moderate | Poor | View Details |
| December | 5°C / -3°C | 1°C / -7°C | 8days (57 mm) Wet | 5.4h Fair | 72% Muggy | 2.1 Moderate | Poor | View Details |
Summer clothing like shorts, t-shirts, and sundresses will be comfortable. Bring a light cardigan for air-conditioned spaces.
A waterproof jacket or compact umbrella is recommended for occasional showers.
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