March is one of the cooler months of the year in Tempe, with average highs near 24.2°C and lows around 8.5°C (mean 16.4°C). It is about average for rainfall, averaging 32 mm of rainfall and 41% relative humidity across the period.
March is one of the cooler months of the year in Tempe. Across 45 years of records, the warmest March in Tempe was 2004 — when the month averaged 20.6°C — while the coldest was 1991 at 12.3°C. Typical March days reach 24.2°C with nights near 8.5°C. The long-term trend is warming, about 0.4°C per decade.
March is about average for rainfall in Tempe, averaging 32 mm of rainfall. The wettest March on record was 1983 with 101 mm, while the driest was 2008 at 0 mm.
Relative humidity in Tempe during March averages 41%. The most humid March was 1992 at 62%, and the least humid was 2002 at 22%.
March receives about 5.7 kWh/m²/day of solar energy in Tempe. The sunniest Marchs were 1997 and 2008 at 6.3 kWh/m²/day, and the cloudiest was 1991 at 4.8.
Average wind speed in Tempe during March is 2 m/s. The windiest March was 1991 at 2.4 m/s, while the calmest was 1992 at 1.7 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 15.8°C | 15.7°C | 16.4°C | 17.7°C | 16.0°C | +0.2°C |
| Avg High | 23.7°C | 23.6°C | 24.4°C | 25.6°C | 23.3°C | -0.4°C |
| Avg Low | 7.9°C | 7.9°C | 8.5°C | 9.7°C | 8.7°C | +0.8°C |
| Avg Rain | 38 mm | 42 mm | 25 mm | 18 mm | 38 mm | 0 mm |
March temperatures in Tempe have risen by about 0.9°C between 1981–1985 and 2021–2025.
March has ranged from a record low of -2.3°C (1990) to a record high of 37°C (2007).
Rainfall in March is about average for rainfall, averaging 32 mm, with a wettest year of 101 mm.
A good time to visit Tempe
March is a good time to visit Tempe, with days averaging 24.2°C and nights around 8.5°C (mean 16.4°C, cooler than Tempe's yearly average) and moderate rainfall. April and October are marginally more temperate, but March still suits most travellers.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | 24.7°C | 17.1°C | 9.5°C | 35.9°C | 4.3°C | 33 mm | 37% | 2.1 m/s | 5.6 |
| 2024 | 22.4°C | 15.6°C | 8.8°C | 27.9°C | 5.8°C | 55 mm | 50% | 1.8 m/s | 5.3 |
| 2023 | 20.9°C | 14.4°C | 7.9°C | 26.2°C | 1.2°C | 57 mm | 50% | 1.9 m/s | 5.1 |
| 2022 | 25.4°C | 17.0°C | 8.6°C | 34.2°C | 2.3°C | 12 mm | 30% | 2.1 m/s | 6 |
| 2021 | 23.8°C | 15.8°C | 7.8°C | 31.4°C | 1.9°C | 11 mm | 33% | 2.2 m/s | 5.8 |
| 2020 | 22.6°C | 16.2°C | 9.8°C | 28.4°C | 4.2°C | 63 mm | 53% | 1.8 m/s | 5.4 |
| 2019 | 23.8°C | 16.7°C | 9.5°C | 29.9°C | 1.7°C | 24 mm | 46% | 2 m/s | 5.7 |
| 2018 | 25.1°C | 17.5°C | 10.0°C | 33.1°C | 2.6°C | 4 mm | 29% | 1.8 m/s | 5.7 |
| 2017 | 27.5°C | 19.4°C | 11.2°C | 34.3°C | 4.2°C | 6 mm | 39% | 2 m/s | 6 |
| 2016 | 27.2°C | 19.0°C | 10.7°C | 32.4°C | 7.3°C | 1 mm | 27% | 2 m/s | 6.1 |
| 2015 | 27.6°C | 19.8°C | 12.0°C | 33.6°C | 3.3°C | 25 mm | 37% | 1.9 m/s | 5.8 |
| 2014 | 26.0°C | 18.1°C | 10.2°C | 29.7°C | 6.7°C | 38 mm | 34% | 1.9 m/s | 5.9 |
| 2013 | 26.2°C | 18.0°C | 9.9°C | 33.1°C | 3.8°C | 28 mm | 36% | 1.8 m/s | 5.9 |
| 2012 | 25.1°C | 16.5°C | 8.0°C | 32.7°C | 1.7°C | 17 mm | 29% | 1.9 m/s | 6.1 |
| 2011 | 25.8°C | 17.5°C | 9.3°C | 34.1°C | 4.0°C | 10 mm | 33% | 1.9 m/s | 6 |
| 2010 | 22.1°C | 14.2°C | 6.2°C | 28.9°C | 1.0°C | 28 mm | 49% | 2 m/s | 5.8 |
| 2009 | 25.1°C | 16.8°C | 8.5°C | 30.4°C | 4.0°C | 1 mm | 33% | 2 m/s | 6.1 |
| 2008 | 24.3°C | 15.8°C | 7.3°C | 29.3°C | 1.7°C | 0 mm | 38% | 1.9 m/s | 6.3 |
| 2007 | 26.8°C | 18.4°C | 9.9°C | 37.0°C | 1.0°C | 25 mm | 30% | 2.1 m/s | 6 |
| 2006 | 21.2°C | 14.4°C | 7.6°C | 28.6°C | -0.1°C | 45 mm | 40% | 2 m/s | 5 |
| 2005 | 21.9°C | 14.6°C | 7.4°C | 29.3°C | 2.2°C | 19 mm | 56% | 1.9 m/s | 5.7 |
| 2004 🔥 | 28.8°C | 20.6°C | 12.5°C | 35.0°C | 5.2°C | 34 mm | 37% | 2.1 m/s | 5.8 |
| 2003 | 23.4°C | 15.6°C | 7.9°C | 31.0°C | 3.0°C | 29 mm | 43% | 1.9 m/s | 5.6 |
| 2002 | 24.7°C | 16.1°C | 7.5°C | 33.8°C | -0.6°C | 4 mm | 22% | 2.2 m/s | 6.2 |
| 2001 | 24.3°C | 16.4°C | 8.5°C | 31.5°C | 3.3°C | 25 mm | 44% | 1.8 m/s | 5.7 |
| 2000 | 23.2°C | 15.5°C | 7.9°C | 28.6°C | 2.5°C | 68 mm | 40% | 1.9 m/s | 5.4 |
| 1999 | 25.2°C | 17.1°C | 9.0°C | 31.5°C | 5.0°C | 5 mm | 29% | 2 m/s | 5.9 |
| 1998 | 21.4°C | 14.0°C | 6.6°C | 31.1°C | -0.2°C | 57 mm | 52% | 2.1 m/s | 5.4 |
| 1997 | 27.9°C | 18.6°C | 9.4°C | 34.0°C | -1.3°C | 1 mm | 30% | 2.1 m/s | 6.3 |
| 1996 | 25.0°C | 16.3°C | 7.6°C | 31.8°C | 1.9°C | 16 mm | 33% | 2.2 m/s | 5.8 |
| 1995 | 23.0°C | 15.6°C | 8.1°C | 30.0°C | 2.5°C | 45 mm | 51% | 2 m/s | 5.6 |
| 1994 | 24.7°C | 16.7°C | 8.8°C | 29.8°C | 4.1°C | 39 mm | 43% | 2 m/s | 5.4 |
| 1993 | 23.3°C | 15.6°C | 8.0°C | 28.8°C | 1.7°C | 40 mm | 59% | 1.9 m/s | 5.5 |
| 1992 | 21.1°C | 14.5°C | 7.9°C | 26.8°C | 3.6°C | 92 mm | 62% | 1.7 m/s | 5.1 |
| 1991 ❄️ | 19.8°C | 12.3°C | 4.9°C | 26.5°C | 1.0°C | 95 mm | 53% | 2.4 m/s | 4.8 |
| 1990 | 24.1°C | 16.4°C | 8.7°C | 32.6°C | -2.3°C | 28 mm | 40% | 2.1 m/s | 5.1 |
| 1989 | 27.1°C | 18.4°C | 9.7°C | 32.0°C | 0.8°C | 37 mm | 33% | 2.1 m/s | 5.6 |
| 1988 | 24.8°C | 15.9°C | 6.9°C | 36.0°C | 0.3°C | 4 mm | 33% | 2.3 m/s | 6.1 |
| 1987 | 22.2°C | 14.2°C | 6.2°C | 28.7°C | 1.2°C | 12 mm | 43% | 2.2 m/s | 5.7 |
| 1986 | 26.0°C | 18.4°C | 10.7°C | 33.8°C | 3.7°C | 55 mm | 44% | 2 m/s | 5.3 |
| 1985 | 22.1°C | 14.7°C | 7.3°C | 28.8°C | 0.9°C | 25 mm | 49% | 2 m/s | 5.3 |
| 1984 | 25.9°C | 17.0°C | 8.2°C | 30.6°C | 2.8°C | 2 mm | 29% | 2.3 m/s | 5.8 |
| 1983 🌧️ | 21.0°C | 14.2°C | 7.3°C | 27.6°C | 3.0°C | 101 mm | 61% | 2.1 m/s | — |
| 1982 | 21.9°C | 14.7°C | 7.5°C | 27.9°C | 2.4°C | 63 mm | 47% | 2 m/s | — |
| 1981 | 22.5°C | 14.8°C | 7.2°C | 30.3°C | 3.8°C | 46 mm | 45% | 2 m/s | — |
Actual recorded March data for each year, 1981–2025 — sourced from NASA POWER.
The average high in March is around 24.2°C with lows near 8.5°C (mean 16.4°C), based on 45 years of NASA POWER data.
March averages 32 mm of rainfall in Tempe, about average for rainfall. The wettest on record was 101 mm in 1983.
The hottest March reached 37°C in 2007. The coldest dipped to -2.3°C in 1990.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average March temperatures have risen by about 0.9°C. Daytime highs moved from 22.7°C to 23.4°C and overnight lows from 7.5°C to 8.5°C over the same span.
March is one of the cooler months of the year in Tempe and about average for rainfall, so plan for around 24.2°C daytime highs and 8.5°C at night.
Not quite — March is the 4th coolest month in Tempe, averaging 16.4°C.
For March in Tempe, pack light layers you can adjust through the day, with typical highs of 24.2°C and lows of 8.5°C.
Relative humidity in March averages 41% — relatively dry.
Average wind speed in March is 2 m/s. The windiest March on record averaged 2.4 m/s (1991).
The wettest March on record was 1983 with 101 mm. On average, March sees 32 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 Tempe behaves each March, 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 March specifically, along with year-by-year records and how the month has changed over the decades.
