July is one of the warmer months of the year in Fort Smith, with average highs near 34.3°C and lows around 22.2°C (mean 28.3°C). It is one of the drier months, averaging 91 mm of rainfall and 66% relative humidity across the period.
July is one of the warmer months of the year in Fort Smith. Across 45 years of records, the warmest July in Fort Smith was 2011 — when the month averaged 32.6°C — while the coldest was 2004 at 25°C. Typical July days reach 34.3°C with nights near 22.2°C. The long-term July temperature trend is broadly flat.
July is one of the drier months in Fort Smith, averaging 91 mm of rainfall. The wettest July on record was 2004 with 217 mm, while the driest was 2011 at 17 mm.
Relative humidity in Fort Smith during July averages 66%. The most humid July was 2015 at 81%, and the least humid were 2011 and 2012 at 50%.
July receives about 6.5 kWh/m²/day of solar energy in Fort Smith. The sunniest July was 2008 at 7.1 kWh/m²/day, and the cloudiest was 1996 at 5.7.
Average wind speed in Fort Smith during July is 1.4 m/s. The windiest July was 2012 at 1.6 m/s, while the calmest were 2007 and 2017 at 1.1 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 28.1°C | 28.1°C | 27.9°C | 28.6°C | 28.6°C | +0.5°C |
| Avg High | 34.3°C | 34.2°C | 34.1°C | 34.5°C | 34.4°C | +0.1°C |
| Avg Low | 21.8°C | 22.0°C | 21.8°C | 22.7°C | 22.9°C | +1.1°C |
| Avg Rain | 76 mm | 90 mm | 86 mm | 101 mm | 104 mm | +28 mm |
July temperatures in Fort Smith have risen by about 0.5°C between 1981–1985 and 2021–2025.
July has ranged from a record low of 13.7°C (1990) to a record high of 43.3°C (1986).
Rainfall in July is one of the drier months, averaging 91 mm, with a wettest year of 217 mm.
Daytime highs and overnight lows have shifted differently — highs rose about 0°C per decade while lows rose 0.3°C per decade, narrowing the gap between day and night.
A good time to visit Fort Smith
July is a good time to visit Fort Smith, with days averaging 34.3°C and nights around 22.2°C (mean 28.3°C, warmer than Fort Smith's yearly average) and higher rainfall. September and June are marginally more temperate, but July still suits most travellers.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | 32.8°C | 27.8°C | 22.9°C | 38.9°C | 20.6°C | 94 mm | 74% | 1.2 m/s | 6.8 |
| 2024 | 34.7°C | 28.5°C | 22.3°C | 39.9°C | 18.1°C | 106 mm | 65% | 1.5 m/s | 6.5 |
| 2023 | 35.5°C | 29.1°C | 22.6°C | 40.0°C | 18.5°C | 120 mm | 65% | 1.4 m/s | 6.3 |
| 2022 | 38.0°C | 31.1°C | 24.3°C | 42.5°C | 21.6°C | 57 mm | 57% | 1.4 m/s | 6.8 |
| 2021 | 32.4°C | 27.2°C | 22.0°C | 37.3°C | 16.8°C | 131 mm | 74% | 1.3 m/s | 6.5 |
| 2020 | 32.8°C | 28.0°C | 23.1°C | 36.0°C | 20.0°C | 116 mm | 76% | 1.4 m/s | 6 |
| 2019 | 31.0°C | 26.2°C | 21.4°C | 34.2°C | 16.3°C | 78 mm | 80% | 1.4 m/s | 6.7 |
| 2018 | 34.6°C | 28.8°C | 23.0°C | 40.9°C | 17.7°C | 89 mm | 66% | 1.3 m/s | 6.3 |
| 2017 | 33.6°C | 28.1°C | 22.5°C | 38.4°C | 17.8°C | 123 mm | 70% | 1.1 m/s | 6.8 |
| 2016 | 34.2°C | 28.9°C | 23.7°C | 38.6°C | 21.2°C | 148 mm | 71% | 1.3 m/s | 6.1 |
| 2015 | 32.0°C | 27.6°C | 23.2°C | 35.4°C | 21.1°C | 161 mm | 81% | 1.3 m/s | 6.6 |
| 2014 | 32.5°C | 25.9°C | 19.3°C | 38.0°C | 14.2°C | 110 mm | 66% | 1.5 m/s | 6.1 |
| 2013 | 34.0°C | 27.4°C | 20.9°C | 39.6°C | 15.8°C | 117 mm | 63% | 1.5 m/s | 6.3 |
| 2012 | 38.6°C | 31.4°C | 24.3°C | 42.7°C | 21.4°C | 59 mm | 50% | 1.6 m/s | 7 |
| 2011 🔥 | 39.9°C | 32.6°C | 25.3°C | 41.9°C | 22.0°C | 17 mm | 50% | 1.5 m/s | 6.8 |
| 2010 | 34.2°C | 28.8°C | 23.4°C | 39.1°C | 18.8°C | 105 mm | 71% | 1.4 m/s | 6.2 |
| 2009 | 34.5°C | 27.8°C | 21.1°C | 40.5°C | 16.6°C | 99 mm | 61% | 1.4 m/s | 6.1 |
| 2008 | 34.1°C | 27.9°C | 21.6°C | 39.7°C | 16.5°C | 72 mm | 67% | 1.3 m/s | 7.1 |
| 2007 | 30.0°C | 25.5°C | 21.0°C | 33.6°C | 16.7°C | 136 mm | 80% | 1.1 m/s | 6.1 |
| 2006 | 36.2°C | 29.4°C | 22.6°C | 40.4°C | 15.2°C | 54 mm | 56% | 1.5 m/s | 6.9 |
| 2005 | 35.6°C | 28.7°C | 21.8°C | 40.9°C | 18.2°C | 64 mm | 58% | 1.4 m/s | 6.5 |
| 2004 ❄️ 🌧️ | 29.4°C | 25.0°C | 20.6°C | 33.6°C | 14.7°C | 217 mm | 81% | 1.3 m/s | 5.9 |
| 2003 | 36.4°C | 29.2°C | 22.0°C | 40.3°C | 16.7°C | 48 mm | 57% | 1.4 m/s | 6.8 |
| 2002 | 34.1°C | 28.3°C | 22.6°C | 38.5°C | 20.5°C | 83 mm | 67% | 1.3 m/s | 6 |
| 2001 | 37.4°C | 30.7°C | 24.1°C | 41.8°C | 18.2°C | 29 mm | 57% | 1.3 m/s | 6.7 |
| 2000 | 32.8°C | 26.9°C | 20.9°C | 39.2°C | 15.6°C | 56 mm | 69% | 1.3 m/s | 6.6 |
| 1999 | 33.5°C | 27.7°C | 21.9°C | 40.3°C | 14.2°C | 22 mm | 69% | 1.3 m/s | 6.9 |
| 1998 | 38.3°C | 31.6°C | 24.8°C | 42.8°C | 21.3°C | 61 mm | 55% | 1.4 m/s | 6.6 |
| 1997 | 35.5°C | 28.8°C | 22.1°C | 40.2°C | 13.9°C | 60 mm | 63% | 1.3 m/s | 6.7 |
| 1996 | 33.5°C | 27.4°C | 21.2°C | 41.4°C | 17.0°C | 168 mm | 67% | 1.5 m/s | 5.7 |
| 1995 | 33.1°C | 27.5°C | 21.9°C | 37.7°C | 15.9°C | 127 mm | 71% | 1.5 m/s | 6.6 |
| 1994 | 32.7°C | 26.9°C | 21.1°C | 37.9°C | 15.5°C | 166 mm | 69% | 1.4 m/s | 6.3 |
| 1993 | 34.9°C | 29.0°C | 23.2°C | 40.0°C | 20.6°C | 22 mm | 67% | 1.4 m/s | 6.9 |
| 1992 | 31.3°C | 26.1°C | 21.0°C | 34.0°C | 15.7°C | 151 mm | 76% | 1.5 m/s | 6.6 |
| 1991 | 35.5°C | 28.8°C | 22.0°C | 39.1°C | 16.5°C | 56 mm | 59% | 1.5 m/s | 6.5 |
| 1990 | 33.6°C | 27.4°C | 21.1°C | 38.4°C | 13.7°C | 69 mm | 63% | 1.4 m/s | 6.4 |
| 1989 | 30.6°C | 25.6°C | 20.6°C | 34.0°C | 15.4°C | 109 mm | 77% | 1.3 m/s | 5.9 |
| 1988 | 35.2°C | 28.8°C | 22.4°C | 40.2°C | 18.1°C | 113 mm | 61% | 1.5 m/s | 5.8 |
| 1987 | 33.8°C | 27.7°C | 21.6°C | 40.3°C | 14.0°C | 68 mm | 66% | 1.4 m/s | 6.3 |
| 1986 | 36.0°C | 29.3°C | 22.5°C | 43.3°C | 20.3°C | 25 mm | 60% | 1.5 m/s | 7 |
| 1985 | 35.6°C | 28.4°C | 21.2°C | 40.4°C | 17.0°C | 50 mm | 59% | 1.4 m/s | 6.7 |
| 1984 | 36.2°C | 28.7°C | 21.2°C | 40.2°C | 16.3°C | 55 mm | 54% | 1.5 m/s | 6.3 |
| 1983 | 34.0°C | 27.9°C | 21.7°C | 39.4°C | 14.7°C | 50 mm | 66% | 1.4 m/s | — |
| 1982 | 33.3°C | 27.7°C | 22.2°C | 38.5°C | 19.3°C | 77 mm | 69% | 1.3 m/s | — |
| 1981 | 34.2°C | 28.4°C | 22.6°C | 40.2°C | 19.0°C | 141 mm | 69% | 1.5 m/s | — |
Actual recorded July data for each year, 1981–2025 — sourced from NASA POWER.
The average high in July is around 34.3°C with lows near 22.2°C (mean 28.3°C), based on 45 years of NASA POWER data.
July averages 91 mm of rainfall in Fort Smith, one of the drier months. The wettest on record was 217 mm in 2004.
The hottest July reached 43.3°C in 1986. The coldest dipped to 13.7°C in 1990.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average July temperatures have risen by about 0.5°C. Daytime highs moved from 34.7°C to 34.7°C and overnight lows from 21.8°C to 22.8°C over the same span.
July is one of the warmer months of the year in Fort Smith and one of the drier months, so plan for around 34.3°C daytime highs and 22.2°C at night.
Not quite — July is the 12th coolest month in Fort Smith, averaging 28.3°C.
For July in Fort Smith, pack light, breathable clothing and sun protection, with typical highs of 34.3°C and lows of 22.2°C. Bring an umbrella or light rain jacket too.
Relative humidity in July averages 66% — moderately humid.
Average wind speed in July is 1.4 m/s. The windiest July on record averaged 1.6 m/s (2012).
The wettest July on record was 2004 with 217 mm. On average, July sees 91 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 Fort Smith behaves each July, 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 July specifically, along with year-by-year records and how the month has changed over the decades.
