August is one of the warmer months of the year in Norman, with average highs near 34.9°C and lows around 22.7°C (mean 28.8°C). It is about average for rainfall, averaging 77 mm of rainfall and 57% relative humidity across the period.
August is one of the warmer months of the year in Norman. Across 45 years of records, the warmest August in Norman was 2011 — when the month averaged 34.2°C — while the coldest was 1992 at 24.4°C. Typical August days reach 34.9°C with nights near 22.7°C. The long-term trend is warming, about 0.2°C per decade.
August is about average for rainfall in Norman, averaging 77 mm of rainfall. The wettest August on record was 1996 with 186 mm, while the driest was 2000 at 1 mm.
Relative humidity in Norman during August averages 57%. The most humid August was 2007 at 80%, and the least humid was 2000 at 37%.
August receives about 6.2 kWh/m²/day of solar energy in Norman. The sunniest August was 2000 at 6.9 kWh/m²/day, and the cloudiest were 1992 and 1996 at 5.5.
Average wind speed in Norman during August is 2.7 m/s. The windiest August was 2000 at 3.3 m/s, while the calmest were 1991, 2005 and 2015 at 2.3 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 28.5°C | 28.3°C | 28.8°C | 29.0°C | 29.4°C | +0.9°C |
| Avg High | 34.7°C | 34.5°C | 34.8°C | 35.1°C | 35.6°C | +0.9°C |
| Avg Low | 22.4°C | 22.1°C | 22.8°C | 22.9°C | 23.2°C | +0.8°C |
| Avg Rain | 64 mm | 80 mm | 98 mm | 69 mm | 71 mm | +8 mm |
August temperatures in Norman have risen by about 0.7°C between 1981–1985 and 2021–2025.
August has ranged from a record low of 12.2°C (1989) to a record high of 46.3°C (2012).
Rainfall in August is about average for rainfall, averaging 77 mm, with a wettest year of 186 mm.
A good time to visit Norman
August is a good time to visit Norman, with days averaging 34.9°C and nights around 22.7°C (mean 28.8°C, warmer than Norman's yearly average) and moderate rainfall. September and May are marginally more temperate, but August still suits most travellers.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | 32.9°C | 27.6°C | 22.3°C | 37.2°C | 18.3°C | 105 mm | 68% | 2.4 m/s | 5.6 |
| 2024 | 37.3°C | 30.7°C | 24.0°C | 41.8°C | 19.4°C | 88 mm | 50% | 2.7 m/s | 6.4 |
| 2023 | 39.0°C | 31.6°C | 24.2°C | 43.4°C | 17.8°C | 24 mm | 45% | 2.7 m/s | 6.7 |
| 2022 | 36.1°C | 30.0°C | 24.0°C | 41.1°C | 20.2°C | 70 mm | 54% | 2.6 m/s | 6.1 |
| 2021 | 33.6°C | 28.3°C | 22.9°C | 37.8°C | 18.0°C | 52 mm | 66% | 2.9 m/s | 6.1 |
| 2020 | 34.6°C | 28.2°C | 21.9°C | 40.4°C | 17.6°C | 89 mm | 59% | 2.6 m/s | 6.6 |
| 2019 | 34.3°C | 29.0°C | 23.7°C | 39.1°C | 19.1°C | 128 mm | 68% | 2.7 m/s | 5.7 |
| 2018 | 33.8°C | 28.2°C | 22.5°C | 37.5°C | 17.5°C | 97 mm | 62% | 2.9 m/s | 6.1 |
| 2017 | 31.4°C | 26.3°C | 21.2°C | 36.2°C | 15.8°C | 183 mm | 71% | 2.4 m/s | 5.8 |
| 2016 | 34.3°C | 28.6°C | 23.0°C | 39.4°C | 16.4°C | 34 mm | 60% | 2.7 m/s | 6.1 |
| 2015 | 31.0°C | 25.5°C | 20.1°C | 35.5°C | 14.9°C | 34 mm | 72% | 2.3 m/s | 5.9 |
| 2014 | 36.3°C | 29.4°C | 22.5°C | 39.6°C | 17.3°C | 20 mm | 53% | 2.8 m/s | 6.7 |
| 2013 | 34.2°C | 28.2°C | 22.1°C | 40.2°C | 17.0°C | 57 mm | 61% | 2.4 m/s | 6.4 |
| 2012 | 36.8°C | 29.9°C | 22.9°C | 46.3°C | 16.4°C | 55 mm | 45% | 3 m/s | 6.4 |
| 2011 🔥 | 41.3°C | 34.2°C | 27.1°C | 45.4°C | 21.7°C | 48 mm | 37% | 2.9 m/s | 6.3 |
| 2010 | 37.6°C | 31.0°C | 24.4°C | 41.6°C | 15.9°C | 33 mm | 49% | 2.8 m/s | 6.8 |
| 2009 | 33.8°C | 27.6°C | 21.4°C | 39.0°C | 13.8°C | 93 mm | 60% | 3.1 m/s | 6.6 |
| 2008 | 33.2°C | 27.5°C | 21.8°C | 41.8°C | 17.7°C | 149 mm | 65% | 2.4 m/s | 5.6 |
| 2007 | 31.5°C | 26.9°C | 22.4°C | 35.2°C | 19.5°C | 162 mm | 80% | 2.7 m/s | 6.5 |
| 2006 | 36.5°C | 30.7°C | 24.9°C | 42.2°C | 17.7°C | 82 mm | 51% | 2.7 m/s | 6.3 |
| 2005 | 33.4°C | 28.0°C | 22.5°C | 38.2°C | 19.3°C | 149 mm | 65% | 2.3 m/s | 6 |
| 2004 | 31.8°C | 25.8°C | 19.8°C | 37.4°C | 15.2°C | 90 mm | 62% | 2.7 m/s | 6.1 |
| 2003 | 36.6°C | 30.3°C | 23.9°C | 41.5°C | 19.8°C | 121 mm | 51% | 2.4 m/s | 6 |
| 2002 | 35.2°C | 28.9°C | 22.6°C | 38.8°C | 16.1°C | 83 mm | 56% | 2.8 m/s | 6.4 |
| 2001 | 36.0°C | 29.9°C | 23.8°C | 40.8°C | 20.7°C | 56 mm | 53% | 2.6 m/s | 6.3 |
| 2000 | 39.5°C | 32.4°C | 25.2°C | 41.4°C | 20.1°C | 1 mm | 37% | 3.3 m/s | 6.9 |
| 1999 | 38.2°C | 31.1°C | 23.9°C | 41.7°C | 18.3°C | 35 mm | 44% | 2.7 m/s | 6.8 |
| 1998 | 37.5°C | 31.0°C | 24.5°C | 41.6°C | 20.8°C | 25 mm | 45% | 2.5 m/s | 6.2 |
| 1997 | 33.9°C | 27.7°C | 21.5°C | 37.5°C | 15.7°C | 100 mm | 61% | 2.8 m/s | 5.9 |
| 1996 🌧️ | 30.6°C | 25.8°C | 21.0°C | 36.1°C | 16.8°C | 186 mm | 73% | 2.4 m/s | 5.5 |
| 1995 | 34.9°C | 29.0°C | 23.2°C | 38.8°C | 18.6°C | 65 mm | 60% | 2.6 m/s | 6.3 |
| 1994 | 35.6°C | 28.4°C | 21.2°C | 39.4°C | 16.8°C | 62 mm | 52% | 3 m/s | 6.3 |
| 1993 | 35.9°C | 29.7°C | 23.5°C | 40.6°C | 16.1°C | 71 mm | 52% | 3 m/s | 6 |
| 1992 ❄️ | 30.1°C | 24.4°C | 18.6°C | 35.4°C | 13.4°C | 112 mm | 69% | 2.5 m/s | 5.5 |
| 1991 | 33.8°C | 27.7°C | 21.7°C | 37.5°C | 17.5°C | 75 mm | 56% | 2.3 m/s | 6.2 |
| 1990 | 34.2°C | 28.0°C | 21.9°C | 40.0°C | 15.6°C | 71 mm | 59% | 2.4 m/s | 6.4 |
| 1989 | 32.3°C | 26.8°C | 21.3°C | 37.0°C | 12.2°C | 85 mm | 63% | 3 m/s | 5.6 |
| 1988 | 36.5°C | 30.0°C | 23.6°C | 40.5°C | 14.4°C | 32 mm | 48% | 2.8 m/s | 6.1 |
| 1987 | 33.8°C | 28.0°C | 22.2°C | 37.3°C | 14.7°C | 60 mm | 61% | 2.5 m/s | 6.3 |
| 1986 | 33.4°C | 27.5°C | 21.5°C | 40.3°C | 13.6°C | 74 mm | 54% | 2.8 m/s | 5.8 |
| 1985 | 35.5°C | 28.8°C | 22.2°C | 40.0°C | 16.7°C | 61 mm | 55% | 2.6 m/s | 6.2 |
| 1984 | 36.2°C | 29.4°C | 22.6°C | 41.8°C | 18.9°C | 52 mm | 48% | 2.4 m/s | 5.9 |
| 1983 | 36.3°C | 30.3°C | 24.3°C | 40.3°C | 22.3°C | 84 mm | 54% | 2.6 m/s | — |
| 1982 | 34.8°C | 28.7°C | 22.6°C | 39.2°C | 20.0°C | 22 mm | 60% | 2.8 m/s | — |
| 1981 | 33.1°C | 27.1°C | 21.1°C | 37.5°C | 14.4°C | 105 mm | 58% | 2.6 m/s | — |
Actual recorded August data for each year, 1981–2025 — sourced from NASA POWER.
The average high in August is around 34.9°C with lows near 22.7°C (mean 28.8°C), based on 45 years of NASA POWER data.
August averages 77 mm of rainfall in Norman, about average for rainfall. The wettest on record was 186 mm in 1996.
The hottest August reached 46.3°C in 2012. The coldest dipped to 12.2°C in 1989.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average August temperatures have risen by about 0.7°C. Daytime highs moved from 35.2°C to 35.8°C and overnight lows from 22.6°C to 23.5°C over the same span.
August is one of the warmer months of the year in Norman and about average for rainfall, so plan for around 34.9°C daytime highs and 22.7°C at night.
Not quite — August is the 12th coolest month in Norman, averaging 28.8°C.
For August in Norman, pack light, breathable clothing and sun protection, with typical highs of 34.9°C and lows of 22.7°C. Bring an umbrella or light rain jacket too.
Relative humidity in August averages 57% — moderately humid.
Average wind speed in August is 2.7 m/s. The windiest August on record averaged 3.3 m/s (2000).
The wettest August on record was 1996 with 186 mm. On average, August sees 77 mm.
All figures are derived from NASA POWER (Prediction Of Worldwide Energy Resources), based on MERRA-2 satellite reanalysis, covering 1981–2025.
Explore how the weather in Norman behaves each August, based on 45 years of NASA POWER climate data from 1981 to 2025. This page breaks down average temperatures, rainfall, humidity, wind and solar radiation for August specifically, along with year-by-year records and how the month has changed over the decades.
