April is one of the cooler months of the year in Tucson, with average highs near 27.1°C and lows around 10.3°C (mean 18.7°C). It is one of the drier months, averaging 9 mm of rainfall and 31% relative humidity across the period.
April is one of the cooler months of the year in Tucson. Across 45 years of records, the warmest April in Tucson was 1989 — when the month averaged 22.5°C — while the coldest was 1983 at 13.9°C. Typical April days reach 27.1°C with nights near 10.3°C. The long-term trend is warming, about 0.4°C per decade.
April is one of the drier months in Tucson, averaging 9 mm of rainfall. The wettest April on record was 1988 with 42 mm, while the driest were 2018, 2022 and 2023, among others at 0 mm.
Relative humidity in Tucson during April averages 31%. The most humid April was 1983 at 50%, and the least humid was 2022 at 18%.
April receives about 7.3 kWh/m²/day of solar energy in Tucson. The sunniest April was 2008 at 7.9 kWh/m²/day, and the cloudiest was 1988 at 6.5.
Average wind speed in Tucson during April is 2.8 m/s. The windiest April was 1999 at 3.3 m/s, while the calmest was 1992 at 2.1 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 18.6°C | 17.6°C | 18.6°C | 19.4°C | 19.7°C | +1.1°C |
| Avg High | 26.8°C | 25.9°C | 27.2°C | 27.7°C | 28.1°C | +1.3°C |
| Avg Low | 10.4°C | 9.2°C | 10.1°C | 11.1°C | 11.2°C | +0.8°C |
| Avg Rain | 15 mm | 9 mm | 10 mm | 6 mm | 2 mm | -13 mm |
April temperatures in Tucson have risen by about 1.9°C between 1981–1985 and 2021–2025.
April has ranged from a record low of -1°C (1999) to a record high of 38.2°C (1989).
Rainfall in April is one of the drier months, averaging 9 mm, with a wettest year of 42 mm.
One of the best times to visit Tucson
April is one of the best times to visit Tucson. Expect days averaging 27.1°C and nights around 10.3°C (mean 18.7°C) — cooler than Tucson's yearly average — with low rainfall (9 mm), so conditions are generally comfortable for sightseeing and outdoor plans.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | 27.8°C | 19.4°C | 11.1°C | 36.9°C | 4.5°C | 1 mm | 24% | 2.7 m/s | 7.5 |
| 2024 | 26.1°C | 17.9°C | 9.7°C | 32.8°C | 2.4°C | 8 mm | 36% | 2.6 m/s | 7.5 |
| 2023 | 28.5°C | 19.7°C | 10.9°C | 35.9°C | 0.8°C | 0 mm | 26% | 2.5 m/s | 7.8 |
| 2022 | 29.8°C | 20.9°C | 11.9°C | 34.7°C | 5.2°C | 0 mm | 18% | 2.9 m/s | 7.8 |
| 2021 | 29.1°C | 20.8°C | 12.6°C | 34.1°C | 8.4°C | 2 mm | 20% | 3 m/s | 7.4 |
| 2020 | 27.5°C | 19.2°C | 11.0°C | 37.1°C | 4.5°C | 4 mm | 36% | 2.7 m/s | 7.6 |
| 2019 | 27.1°C | 19.2°C | 11.4°C | 34.8°C | 5.6°C | 1 mm | 35% | 2.7 m/s | 7.1 |
| 2018 | 30.3°C | 21.9°C | 13.4°C | 35.0°C | 5.2°C | 0 mm | 19% | 2.7 m/s | 7.5 |
| 2017 | 29.3°C | 20.8°C | 12.3°C | 35.4°C | 4.4°C | 2 mm | 22% | 2.6 m/s | 7.5 |
| 2016 | 27.0°C | 18.9°C | 10.8°C | 33.8°C | 6.2°C | 16 mm | 30% | 2.7 m/s | 7.2 |
| 2015 | 26.6°C | 18.5°C | 10.4°C | 33.7°C | 5.2°C | 9 mm | 31% | 2.8 m/s | 7.3 |
| 2014 | 27.9°C | 19.5°C | 11.2°C | 34.0°C | 4.1°C | 2 mm | 21% | 2.8 m/s | 7.2 |
| 2013 | 28.0°C | 19.6°C | 11.2°C | 35.1°C | 3.6°C | 3 mm | 22% | 2.9 m/s | 7.6 |
| 2012 | 28.2°C | 19.8°C | 11.4°C | 37.7°C | 4.2°C | 5 mm | 23% | 2.5 m/s | 7.4 |
| 2011 | 28.1°C | 19.4°C | 10.7°C | 34.2°C | 1.4°C | 9 mm | 26% | 3.2 m/s | 7.5 |
| 2010 | 24.8°C | 16.5°C | 8.2°C | 30.7°C | 3.2°C | 11 mm | 38% | 2.8 m/s | 7.1 |
| 2009 | 26.4°C | 18.1°C | 9.7°C | 35.2°C | 4.3°C | 8 mm | 26% | 3.1 m/s | 7.5 |
| 2008 | 27.5°C | 18.6°C | 9.6°C | 33.8°C | 4.8°C | 0 mm | 21% | 3.2 m/s | 7.9 |
| 2007 | 27.2°C | 18.8°C | 10.3°C | 33.1°C | 4.4°C | 7 mm | 30% | 2.8 m/s | 7.3 |
| 2006 | 27.6°C | 18.9°C | 10.1°C | 33.0°C | 4.6°C | 0 mm | 26% | 2.5 m/s | 7.2 |
| 2005 | 26.5°C | 17.8°C | 9.2°C | 32.1°C | 3.6°C | 7 mm | 33% | 3 m/s | 7.5 |
| 2004 | 25.5°C | 17.8°C | 10.1°C | 32.1°C | 5.5°C | 32 mm | 38% | 3 m/s | 6.9 |
| 2003 | 25.6°C | 17.0°C | 8.4°C | 31.1°C | 3.7°C | 4 mm | 29% | 3.1 m/s | 7.7 |
| 2002 | 29.7°C | 21.0°C | 12.3°C | 35.0°C | 6.2°C | 0 mm | 23% | 2.8 m/s | 7.4 |
| 2001 | 26.1°C | 17.5°C | 8.9°C | 34.3°C | 2.9°C | 35 mm | 38% | 2.9 m/s | 7.1 |
| 2000 | 29.5°C | 20.7°C | 12.0°C | 37.2°C | 4.6°C | 1 mm | 22% | 2.6 m/s | 7.5 |
| 1999 | 23.3°C | 15.1°C | 6.9°C | 32.9°C | -1.0°C | 37 mm | 37% | 3.3 m/s | 7.2 |
| 1998 | 22.8°C | 14.6°C | 6.3°C | 32.4°C | 0.7°C | 9 mm | 44% | 2.9 m/s | 7.4 |
| 1997 | 25.4°C | 17.5°C | 9.6°C | 32.9°C | 3.4°C | 9 mm | 31% | 3.1 m/s | 7.2 |
| 1996 | 28.9°C | 19.8°C | 10.7°C | 36.7°C | 5.7°C | 0 mm | 19% | 3 m/s | 7.7 |
| 1995 | 24.5°C | 16.2°C | 7.8°C | 31.1°C | 1.3°C | 12 mm | 37% | 2.8 m/s | 7.1 |
| 1994 | 26.6°C | 18.2°C | 9.9°C | 34.4°C | 4.6°C | 7 mm | 32% | 2.9 m/s | 7.1 |
| 1993 | 26.7°C | 18.4°C | 10.0°C | 34.0°C | 4.6°C | 0 mm | 37% | 2.4 m/s | 7.5 |
| 1992 | 28.3°C | 19.9°C | 11.6°C | 36.2°C | 5.4°C | 10 mm | 40% | 2.1 m/s | 7.3 |
| 1991 | 25.2°C | 16.8°C | 8.5°C | 30.2°C | 3.7°C | 0 mm | 34% | 2.7 m/s | 7.6 |
| 1990 | 27.3°C | 19.1°C | 10.9°C | 33.7°C | 4.9°C | 5 mm | 36% | 2.9 m/s | 6.8 |
| 1989 🔥 | 31.3°C | 22.5°C | 13.7°C | 38.2°C | 7.5°C | 0 mm | 22% | 2.5 m/s | 7.3 |
| 1988 🌧️ | 25.8°C | 17.7°C | 9.6°C | 32.1°C | 4.1°C | 42 mm | 38% | 2.8 m/s | 6.5 |
| 1987 | 27.7°C | 19.4°C | 11.1°C | 32.9°C | 4.8°C | 24 mm | 36% | 3 m/s | 6.9 |
| 1986 | 26.8°C | 18.9°C | 11.0°C | 32.9°C | 6.2°C | 2 mm | 34% | 2.9 m/s | 6.8 |
| 1985 | 27.7°C | 19.6°C | 11.5°C | 33.3°C | 4.8°C | 20 mm | 38% | 2.8 m/s | 6.8 |
| 1984 | 25.0°C | 16.7°C | 8.3°C | 34.2°C | 1.9°C | 24 mm | 35% | 3.2 m/s | 6.6 |
| 1983 ❄️ | 21.7°C | 13.9°C | 6.2°C | 29.8°C | -0.8°C | 10 mm | 50% | 2.8 m/s | — |
| 1982 | 27.1°C | 19.1°C | 11.2°C | 31.8°C | 3.8°C | 2 mm | 31% | 2.4 m/s | — |
| 1981 | 28.2°C | 19.5°C | 10.9°C | 33.2°C | 2.1°C | 13 mm | 36% | 3 m/s | — |
Actual recorded April data for each year, 1981–2025 — sourced from NASA POWER.
The average high in April is around 27.1°C with lows near 10.3°C (mean 18.7°C), based on 45 years of NASA POWER data.
April averages 9 mm of rainfall in Tucson, one of the drier months. The wettest on record was 42 mm in 1988.
The hottest April reached 38.2°C in 1989. The coldest dipped to -1°C in 1999.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average April temperatures have risen by about 1.9°C. Daytime highs moved from 25.9°C to 28.3°C and overnight lows from 9.6°C to 11.2°C over the same span.
April is one of the cooler months of the year in Tucson and one of the drier months, so plan for around 27.1°C daytime highs and 10.3°C at night.
Not quite — April is the 6th coolest month in Tucson, averaging 18.7°C.
For April in Tucson, pack light layers you can adjust through the day, with typical highs of 27.1°C and lows of 10.3°C.
Relative humidity in April averages 31% — relatively dry.
Average wind speed in April is 2.8 m/s. The windiest April on record averaged 3.3 m/s (1999).
The wettest April on record was 1988 with 42 mm. On average, April sees 9 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 Tucson 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.
