April is one of the cooler months of the year in Tulsa, with average highs near 21.2°C and lows around 8.8°C (mean 15°C). It is a relatively wet time of year, averaging 117 mm of rainfall and 75% relative humidity across the period.
April is one of the cooler months of the year in Tulsa. Across 45 years of records, the warmest April in Tulsa was 1981 — when the month averaged 19.6°C — while the coldest was 2018 at 11.2°C. Typical April days reach 21.2°C with nights near 8.8°C. The long-term trend is warming, about 0.3°C per decade.
April is a relatively wet time of year in Tulsa, averaging 117 mm of rainfall. The wettest April on record was 2025 with 295 mm, while the driest was 1989 at 10 mm.
Relative humidity in Tulsa during April averages 75%. The most humid April was 1993 at 82%, and the least humid was 1996 at 62%.
April receives about 5.2 kWh/m²/day of solar energy in Tulsa. The sunniest April was 1987 at 6.2 kWh/m²/day, and the cloudiest was 1993 at 4.3.
Average wind speed in Tulsa during April is 3 m/s. The windiest April was 2011 at 3.5 m/s, while the calmest was 1987 at 2.3 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 14.6°C | 14.1°C | 15.5°C | 15.6°C | 15.3°C | +0.7°C |
| Avg High | 20.9°C | 20.3°C | 21.7°C | 21.7°C | 21.4°C | +0.5°C |
| Avg Low | 8.4°C | 7.9°C | 9.2°C | 9.4°C | 9.2°C | +0.8°C |
| Avg Rain | 83 mm | 131 mm | 103 mm | 130 mm | 142 mm | +59 mm |
April temperatures in Tulsa have risen by about 1°C between 1981–1985 and 2021–2025.
April has ranged from a record low of -4.6°C (2007) to a record high of 35.2°C (2006).
Rainfall in April is a relatively wet time of year, averaging 117 mm, with a wettest year of 295 mm.
A good time to visit Tulsa
April is a good time to visit Tulsa, with days averaging 21.2°C and nights around 8.8°C (mean 15°C, close to Tulsa's yearly average) and higher rainfall. September and June are marginally more temperate, but April still suits most travellers.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 🌧️ | 22.0°C | 16.4°C | 10.7°C | 28.7°C | 0.3°C | 295 mm | 78% | 3 m/s | 4.6 |
| 2024 | 23.6°C | 17.3°C | 11.0°C | 29.4°C | 2.4°C | 156 mm | 69% | 3.3 m/s | 5.6 |
| 2023 | 20.9°C | 14.6°C | 8.2°C | 27.2°C | 2.1°C | 55 mm | 72% | 2.8 m/s | 6 |
| 2022 | 21.4°C | 15.3°C | 9.2°C | 27.5°C | -0.1°C | 110 mm | 72% | 3.4 m/s | 5.1 |
| 2021 | 20.6°C | 14.4°C | 8.2°C | 26.4°C | -0.6°C | 130 mm | 72% | 3 m/s | 5.2 |
| 2020 | 19.7°C | 13.8°C | 7.9°C | 29.3°C | -0.9°C | 105 mm | 79% | 2.7 m/s | 5.2 |
| 2019 | 22.1°C | 16.0°C | 10.0°C | 28.7°C | 1.3°C | 130 mm | 77% | 2.9 m/s | 5.3 |
| 2018 ❄️ | 17.8°C | 11.2°C | 4.6°C | 26.5°C | -3.5°C | 68 mm | 73% | 3.1 m/s | 5.2 |
| 2017 | 22.7°C | 16.7°C | 10.7°C | 28.1°C | 3.7°C | 280 mm | 76% | 3 m/s | 4.9 |
| 2016 | 22.3°C | 16.4°C | 10.4°C | 27.0°C | -0.2°C | 155 mm | 76% | 2.7 m/s | 5.6 |
| 2015 | 21.9°C | 16.3°C | 10.7°C | 27.9°C | 1.1°C | 102 mm | 77% | 2.8 m/s | 4.8 |
| 2014 | 21.7°C | 14.8°C | 7.9°C | 27.9°C | -1.4°C | 61 mm | 69% | 3.1 m/s | 5.4 |
| 2013 | 19.2°C | 13.1°C | 6.9°C | 27.7°C | -0.7°C | 137 mm | 77% | 2.9 m/s | 4.7 |
| 2012 | 23.4°C | 18.0°C | 12.6°C | 28.8°C | 3.9°C | 85 mm | 78% | 2.8 m/s | 5.3 |
| 2011 | 24.0°C | 17.0°C | 10.0°C | 31.4°C | 1.5°C | 225 mm | 66% | 3.5 m/s | 5.1 |
| 2010 | 21.9°C | 16.2°C | 10.4°C | 26.2°C | 2.3°C | 57 mm | 76% | 3.2 m/s | 5.4 |
| 2009 | 20.4°C | 14.3°C | 8.2°C | 29.6°C | -3.9°C | 114 mm | 74% | 3.2 m/s | 4.7 |
| 2008 | 19.8°C | 13.5°C | 7.1°C | 26.8°C | 0.1°C | 194 mm | 78% | 3.3 m/s | 5.2 |
| 2007 | 18.8°C | 12.9°C | 7.0°C | 26.3°C | -4.6°C | 68 mm | 75% | 2.7 m/s | 5.2 |
| 2006 | 26.5°C | 19.1°C | 11.8°C | 35.2°C | 2.6°C | 131 mm | 63% | 3.2 m/s | 5.6 |
| 2005 | 20.8°C | 15.0°C | 9.1°C | 27.1°C | 2.1°C | 63 mm | 76% | 2.9 m/s | 5.3 |
| 2004 | 21.3°C | 15.4°C | 9.5°C | 26.8°C | 1.0°C | 159 mm | 77% | 2.7 m/s | 5.2 |
| 2003 | 22.6°C | 15.9°C | 9.2°C | 28.7°C | -2.3°C | 53 mm | 70% | 3.3 m/s | 5.7 |
| 2002 | 22.0°C | 16.3°C | 10.5°C | 28.8°C | -0.8°C | 116 mm | 80% | 3 m/s | 4.9 |
| 2001 | 23.2°C | 17.6°C | 11.9°C | 27.7°C | 1.1°C | 48 mm | 76% | 3.3 m/s | 5.4 |
| 2000 | 21.5°C | 14.7°C | 8.0°C | 28.8°C | 0.6°C | 90 mm | 70% | 2.9 m/s | 5.6 |
| 1999 | 21.5°C | 15.6°C | 9.6°C | 27.2°C | 1.1°C | 167 mm | 78% | 3.1 m/s | 4.9 |
| 1998 | 19.0°C | 13.1°C | 7.2°C | 25.9°C | 3.2°C | 70 mm | 77% | 2.9 m/s | 5.4 |
| 1997 | 18.4°C | 12.2°C | 6.0°C | 25.3°C | -3.5°C | 101 mm | 77% | 2.8 m/s | 5.3 |
| 1996 | 21.4°C | 13.9°C | 6.4°C | 29.6°C | -2.9°C | 88 mm | 62% | 3.4 m/s | 5.7 |
| 1995 | 20.5°C | 14.0°C | 7.5°C | 26.5°C | 1.4°C | 196 mm | 78% | 3 m/s | 5.2 |
| 1994 | 21.5°C | 15.0°C | 8.5°C | 27.9°C | -1.6°C | 135 mm | 78% | 3.1 m/s | 5.1 |
| 1993 | 17.9°C | 12.2°C | 6.6°C | 24.5°C | -1.9°C | 131 mm | 82% | 2.9 m/s | 4.3 |
| 1992 | 20.7°C | 14.9°C | 9.1°C | 26.9°C | -1.6°C | 104 mm | 79% | 2.5 m/s | 5.3 |
| 1991 | 22.6°C | 16.4°C | 10.2°C | 27.3°C | 3.5°C | 115 mm | 77% | 2.7 m/s | 5 |
| 1990 | 19.2°C | 13.5°C | 7.7°C | 26.5°C | -0.6°C | 205 mm | 80% | 2.8 m/s | 4.9 |
| 1989 | 21.1°C | 14.9°C | 8.8°C | 27.9°C | -2.9°C | 10 mm | 74% | 2.6 m/s | 5.8 |
| 1988 | 20.1°C | 13.6°C | 7.0°C | 26.3°C | 1.0°C | 73 mm | 77% | 2.7 m/s | 5.6 |
| 1987 | 21.5°C | 14.4°C | 7.4°C | 29.5°C | -4.4°C | 28 mm | 74% | 2.3 m/s | 6.2 |
| 1986 | 21.4°C | 15.7°C | 9.9°C | 26.8°C | 1.5°C | 163 mm | 78% | 3 m/s | 5 |
| 1985 | 21.3°C | 15.7°C | 10.2°C | 26.1°C | 0.5°C | 143 mm | 81% | 2.6 m/s | 5.7 |
| 1984 | 19.0°C | 12.9°C | 6.8°C | 26.7°C | 0.1°C | 86 mm | 76% | 3.2 m/s | 4.9 |
| 1983 | 17.6°C | 11.8°C | 5.9°C | 27.2°C | -2.4°C | 122 mm | 78% | 3.3 m/s | — |
| 1982 | 19.5°C | 13.0°C | 6.5°C | 28.5°C | -2.9°C | 44 mm | 72% | 3 m/s | — |
| 1981 🔥 | 26.5°C | 19.6°C | 12.8°C | 31.1°C | 3.5°C | 82 mm | 65% | 3.3 m/s | — |
Actual recorded April data for each year, 1981–2025 — sourced from NASA POWER.
The average high in April is around 21.2°C with lows near 8.8°C (mean 15°C), based on 45 years of NASA POWER data.
April averages 117 mm of rainfall in Tulsa, a relatively wet time of year. The wettest on record was 295 mm in 2025.
The hottest April reached 35.2°C in 2006. The coldest dipped to -4.6°C in 2007.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average April temperatures have risen by about 1°C. Daytime highs moved from 20.8°C to 21.7°C and overnight lows from 8.4°C to 9.5°C over the same span.
April is one of the cooler months of the year in Tulsa and a relatively wet time of year, so plan for around 21.2°C daytime highs and 8.8°C at night.
Not quite — April is the 6th coolest month in Tulsa, averaging 15°C.
For April in Tulsa, pack light layers you can adjust through the day, with typical highs of 21.2°C and lows of 8.8°C. Bring an umbrella or light rain jacket too.
Relative humidity in April averages 75% — moderately humid.
Average wind speed in April is 3 m/s. The windiest April on record averaged 3.5 m/s (2011).
The wettest April on record was 2025 with 295 mm. On average, April sees 117 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 Tulsa behaves each April, 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 April specifically, along with year-by-year records and how the month has changed over the decades.
