February is one of the cooler months of the year in San Tan Valley, with average highs near 19.7°C and lows around 5.3°C (mean 12.5°C). It is about average for rainfall, averaging 33 mm of rainfall and 47% relative humidity across the period.
February is one of the cooler months of the year in San Tan Valley. Across 45 years of records, the warmest February in San Tan Valley was 2025 — when the month averaged 16.6°C — while the coldest was 1998 at 8.9°C. Typical February days reach 19.7°C with nights near 5.3°C. The long-term trend is warming, about 0.2°C per decade.
February is about average for rainfall in San Tan Valley, averaging 33 mm of rainfall. The wettest February on record was 1998 with 117 mm, while the driest was 2006 at 0 mm.
Relative humidity in San Tan Valley during February averages 47%. The most humid February was 1993 at 71%, and the least humid was 2006 at 23%.
February receives about 4.3 kWh/m²/day of solar energy in San Tan Valley. The sunniest February was 2016 at 4.9 kWh/m²/day, and the cloudiest was 1993 at 3.6.
Average wind speed in San Tan Valley during February is 2.3 m/s. The windiest February was 2023 at 2.8 m/s, while the calmest was 2014 at 1.8 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 12.3°C | 12.2°C | 12.4°C | 12.9°C | 12.9°C | +0.6°C |
| Avg High | 19.7°C | 19.2°C | 19.6°C | 20.0°C | 20.2°C | +0.5°C |
| Avg Low | 4.9°C | 5.2°C | 5.2°C | 5.7°C | 5.5°C | +0.6°C |
| Avg Rain | 32 mm | 55 mm | 31 mm | 23 mm | 21 mm | -12 mm |
February temperatures in San Tan Valley have risen by about 1°C between 1981–1985 and 2021–2025.
February has ranged from a record low of -7°C (2011) to a record high of 31°C (1986).
Rainfall in February is about average for rainfall, averaging 33 mm, with a wettest year of 117 mm.
A quieter season to visit San Tan Valley
If your dates are flexible, the more temperate months of October and May tend to be the most comfortable for visiting San Tan Valley. That said, February — with days averaging 19.7°C and nights around 5.3°C (mean 12.5°C) and moderate rainfall (33 mm) — can still be rewarding for travellers who don't mind the cooler conditions, and often means fewer crowds.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 🔥 | 24.4°C | 16.6°C | 8.8°C | 29.8°C | 3.7°C | 1 mm | 27% | 1.9 m/s | 4.7 |
| 2024 | 19.5°C | 12.8°C | 6.2°C | 26.9°C | -1.2°C | 52 mm | 54% | 2.1 m/s | 4.1 |
| 2023 | 17.2°C | 10.5°C | 3.8°C | 23.7°C | -3.0°C | 28 mm | 50% | 2.8 m/s | 4.3 |
| 2022 | 19.9°C | 11.9°C | 3.9°C | 26.5°C | -1.9°C | 10 mm | 38% | 2.6 m/s | 4.8 |
| 2021 | 20.8°C | 13.2°C | 5.5°C | 27.4°C | -0.3°C | 1 mm | 33% | 2.2 m/s | 4.8 |
| 2020 | 19.4°C | 12.2°C | 5.0°C | 26.1°C | -3.1°C | 31 mm | 47% | 2.2 m/s | 4.5 |
| 2019 | 16.0°C | 9.9°C | 3.7°C | 23.3°C | -2.0°C | 82 mm | 56% | 2.3 m/s | 3.7 |
| 2018 | 20.6°C | 13.7°C | 6.9°C | 28.1°C | 0.8°C | 26 mm | 38% | 2 m/s | 4.3 |
| 2017 | 20.7°C | 14.2°C | 7.7°C | 28.7°C | 1.5°C | 23 mm | 52% | 2 m/s | 4 |
| 2016 | 24.4°C | 15.8°C | 7.2°C | 29.6°C | -2.9°C | 2 mm | 32% | 2.5 m/s | 4.9 |
| 2015 | 23.3°C | 15.9°C | 8.5°C | 28.4°C | 2.7°C | 2 mm | 46% | 2.1 m/s | 4.5 |
| 2014 | 22.7°C | 15.4°C | 8.0°C | 29.2°C | 1.3°C | 1 mm | 36% | 1.8 m/s | 4.4 |
| 2013 | 17.4°C | 10.1°C | 2.8°C | 24.4°C | -2.4°C | 15 mm | 46% | 2.1 m/s | 4.6 |
| 2012 | 20.1°C | 12.7°C | 5.3°C | 25.0°C | 1.3°C | 9 mm | 42% | 2.1 m/s | 4.7 |
| 2011 | 18.0°C | 10.3°C | 2.7°C | 25.9°C | -7.0°C | 21 mm | 39% | 2.3 m/s | 4.5 |
| 2010 | 16.5°C | 10.5°C | 4.4°C | 22.2°C | -3.0°C | 48 mm | 63% | 2.1 m/s | 4.1 |
| 2009 | 20.5°C | 13.1°C | 5.6°C | 29.6°C | -1.8°C | 31 mm | 45% | 2.4 m/s | 4.6 |
| 2008 | 18.4°C | 11.2°C | 4.0°C | 25.8°C | -2.5°C | 32 mm | 55% | 2.1 m/s | 4.2 |
| 2007 | 19.5°C | 12.1°C | 4.8°C | 26.4°C | -0.7°C | 13 mm | 45% | 2.2 m/s | 4.3 |
| 2006 | 22.1°C | 14.3°C | 6.5°C | 27.6°C | 2.3°C | 0 mm | 23% | 2.2 m/s | 4.6 |
| 2005 | 17.6°C | 12.2°C | 6.8°C | 24.1°C | 3.1°C | 102 mm | 67% | 2.2 m/s | 3.7 |
| 2004 | 17.2°C | 10.1°C | 2.9°C | 27.1°C | -2.8°C | 19 mm | 44% | 2 m/s | 4.2 |
| 2003 | 18.4°C | 12.1°C | 5.8°C | 27.8°C | -0.4°C | 75 mm | 50% | 2 m/s | 3.7 |
| 2002 | 22.0°C | 13.7°C | 5.3°C | 28.0°C | -2.0°C | 1 mm | 25% | 2.6 m/s | 4.7 |
| 2001 | 18.3°C | 11.0°C | 3.8°C | 25.9°C | -2.9°C | 29 mm | 51% | 2.3 m/s | 4.3 |
| 2000 | 22.1°C | 14.3°C | 6.5°C | 28.3°C | 1.6°C | 8 mm | 35% | 2.3 m/s | 4.2 |
| 1999 | 22.5°C | 14.2°C | 5.9°C | 28.2°C | -2.4°C | 6 mm | 30% | 2.2 m/s | 4.6 |
| 1998 ❄️ 🌧️ | 15.1°C | 8.9°C | 2.7°C | 24.5°C | -2.0°C | 117 mm | 65% | 2.1 m/s | 3.8 |
| 1997 | 19.2°C | 11.5°C | 3.9°C | 25.2°C | -0.9°C | 38 mm | 42% | 2.5 m/s | 4.3 |
| 1996 | 21.3°C | 14.5°C | 7.7°C | 27.4°C | 0.1°C | 43 mm | 48% | 2.4 m/s | 3.9 |
| 1995 | 21.6°C | 14.5°C | 7.5°C | 25.9°C | 2.5°C | 50 mm | 62% | 2.4 m/s | 4.3 |
| 1994 | 18.5°C | 11.1°C | 3.8°C | 26.3°C | -2.1°C | 53 mm | 46% | 2.3 m/s | 4.3 |
| 1993 | 16.2°C | 10.5°C | 4.9°C | 21.9°C | 1.4°C | 94 mm | 71% | 2.4 m/s | 3.6 |
| 1992 | 18.4°C | 12.3°C | 6.2°C | 24.0°C | 3.1°C | 69 mm | 65% | 2.2 m/s | 4.2 |
| 1991 | 21.6°C | 14.0°C | 6.5°C | 27.1°C | -0.1°C | 43 mm | 49% | 2.7 m/s | 4.3 |
| 1990 | 17.7°C | 10.4°C | 3.1°C | 27.7°C | -6.7°C | 36 mm | 50% | 2.3 m/s | 4.1 |
| 1989 | 20.5°C | 13.0°C | 5.5°C | 28.9°C | -0.8°C | 6 mm | 47% | 2.4 m/s | 4.2 |
| 1988 | 21.1°C | 13.2°C | 5.3°C | 27.6°C | 0.4°C | 20 mm | 48% | 2.5 m/s | 4.3 |
| 1987 | 18.1°C | 11.3°C | 4.5°C | 25.0°C | -1.9°C | 55 mm | 54% | 2.5 m/s | 4.1 |
| 1986 | 20.0°C | 13.0°C | 6.0°C | 31.0°C | -1.8°C | 55 mm | 55% | 2 m/s | 4 |
| 1985 | 17.4°C | 10.3°C | 3.2°C | 26.0°C | -5.9°C | 33 mm | 61% | 2.2 m/s | 4.3 |
| 1984 | 19.6°C | 11.7°C | 3.7°C | 24.6°C | -0.3°C | 1 mm | 42% | 2.6 m/s | 4.5 |
| 1983 | 18.5°C | 11.5°C | 4.4°C | 25.3°C | -0.9°C | 48 mm | 63% | 2.1 m/s | — |
| 1982 | 19.9°C | 12.7°C | 5.5°C | 27.7°C | -1.0°C | 39 mm | 53% | 2.4 m/s | — |
| 1981 | 22.1°C | 13.9°C | 5.6°C | 30.1°C | -3.1°C | 35 mm | 40% | 2.4 m/s | — |
Actual recorded February data for each year, 1981–2025 — sourced from NASA POWER.
The average high in February is around 19.7°C with lows near 5.3°C (mean 12.5°C), based on 45 years of NASA POWER data.
February averages 33 mm of rainfall in San Tan Valley, about average for rainfall. The wettest on record was 117 mm in 1998.
The hottest February reached 31°C in 1986. The coldest dipped to -7°C in 2011.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average February temperatures have risen by about 1°C. Daytime highs moved from 19.5°C to 20.4°C and overnight lows from 4.5°C to 5.6°C over the same span.
February is one of the cooler months of the year in San Tan Valley and about average for rainfall, so plan for around 19.7°C daytime highs and 5.3°C at night.
Not quite — February is the 3rd coolest month in San Tan Valley, averaging 12.5°C.
For February in San Tan Valley, pack warm layers and a jacket for chilly mornings, with typical highs of 19.7°C and lows of 5.3°C.
Relative humidity in February averages 47% — relatively dry.
Average wind speed in February is 2.3 m/s. The windiest February on record averaged 2.8 m/s (2023).
The wettest February on record was 1998 with 117 mm. On average, February sees 33 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 San Tan Valley behaves each February, 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 February specifically, along with year-by-year records and how the month has changed over the decades.
