March is one of the cooler months of the year in Spanaway, with average highs near 9.4°C and lows around 2°C (mean 5.7°C). It is a relatively wet time of year, averaging 163 mm of rainfall and 88% relative humidity across the period.
March is one of the cooler months of the year in Spanaway. Across 45 years of records, the warmest March in Spanaway was 1992 — when the month averaged 9.3°C — while the coldest was 2009 at 2.9°C. Typical March days reach 9.4°C with nights near 2°C. The long-term March temperature trend is broadly flat.
March is a relatively wet time of year in Spanaway, averaging 163 mm of rainfall. The wettest March on record was 2017 with 325 mm, while the driest was 2019 at 41 mm.
Relative humidity in Spanaway during March averages 88%. The most humid March was 2025 at 93%, and the least humid was 1992 at 80%.
March receives about 2.9 kWh/m²/day of solar energy in Spanaway. The sunniest March was 2019 at 3.7 kWh/m²/day, and the cloudiest was 2017 at 2.3.
Average wind speed in Spanaway during March is 0.3 m/s. The windiest Marchs were 1997, 2005 and 2015, among others at 0.4 m/s, while the calmest were 2023, 2024 and 2025, among others at 0.3 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 5.8°C | 6.0°C | 5.2°C | 5.8°C | 5.4°C | -0.4°C |
| Avg High | 9.7°C | 10.1°C | 8.7°C | 9.3°C | 8.9°C | -0.8°C |
| Avg Low | 2.0°C | 2.0°C | 1.7°C | 2.2°C | 1.9°C | -0.1°C |
| Avg Rain | 171 mm | 150 mm | 153 mm | 194 mm | 139 mm | -33 mm |
March temperatures in Spanaway have fallen by about 0.3°C between 1981–1985 and 2021–2025.
March has ranged from a record low of -8.2°C (1989) to a record high of 22.9°C (1994).
Rainfall in March is a relatively wet time of year, averaging 163 mm, with a wettest year of 325 mm.
Daytime highs and overnight lows have shifted differently — highs fell about 0.3°C per decade while lows rose 0°C per decade, narrowing the gap between day and night.
A good time to visit Spanaway
March is a good time to visit Spanaway, with days averaging 9.4°C and nights around 2°C (mean 5.7°C, cooler than Spanaway's yearly average) and higher rainfall. August and July 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 | 8.8°C | 5.8°C | 2.8°C | 19.4°C | -2.1°C | 213 mm | 93% | 0.3 m/s | 2.6 |
| 2024 | 10.1°C | 6.4°C | 2.6°C | 21.7°C | -3.1°C | 131 mm | 88% | 0.3 m/s | 3.1 |
| 2023 | 7.7°C | 4.0°C | 0.4°C | 15.1°C | -4.5°C | 140 mm | 89% | 0.3 m/s | 3 |
| 2022 | 9.7°C | 6.5°C | 3.3°C | 17.5°C | -2.2°C | 125 mm | 89% | 0.3 m/s | 2.9 |
| 2021 | 9.1°C | 5.0°C | 1.0°C | 16.9°C | -2.2°C | 101 mm | 86% | 0.3 m/s | 3.3 |
| 2020 | 8.2°C | 4.8°C | 1.3°C | 14.6°C | -5.1°C | 123 mm | 87% | 0.3 m/s | 3.2 |
| 2019 | 10.1°C | 5.5°C | 0.9°C | 18.9°C | -6.3°C | 41 mm | 83% | 0.3 m/s | 3.7 |
| 2018 | 8.9°C | 5.1°C | 1.3°C | 16.5°C | -2.4°C | 93 mm | 88% | 0.3 m/s | 3.1 |
| 2017 🌧️ | 8.0°C | 5.2°C | 2.4°C | 12.3°C | -0.7°C | 325 mm | 93% | 0.3 m/s | 2.3 |
| 2016 | 10.6°C | 7.0°C | 3.5°C | 19.2°C | -1.1°C | 246 mm | 88% | 0.3 m/s | 2.9 |
| 2015 | 12.7°C | 8.5°C | 4.4°C | 20.6°C | -1.7°C | 154 mm | 83% | 0.4 m/s | 3.1 |
| 2014 | 9.9°C | 6.3°C | 2.6°C | 17.4°C | -1.3°C | 312 mm | 89% | 0.3 m/s | 2.8 |
| 2013 | 9.4°C | 5.8°C | 2.2°C | 20.1°C | -4.2°C | 121 mm | 88% | 0.3 m/s | 2.9 |
| 2012 | 6.6°C | 3.7°C | 0.8°C | 13.5°C | -4.4°C | 245 mm | 91% | 0.3 m/s | 2.6 |
| 2011 | 7.3°C | 4.5°C | 1.8°C | 11.8°C | -1.0°C | 264 mm | 92% | 0.3 m/s | 2.4 |
| 2010 | 10.0°C | 6.0°C | 2.0°C | 16.6°C | -2.7°C | 138 mm | 86% | 0.3 m/s | 3.1 |
| 2009 ❄️ | 6.2°C | 2.9°C | -0.4°C | 10.4°C | -5.7°C | 174 mm | 90% | 0.3 m/s | 2.8 |
| 2008 | 6.4°C | 3.3°C | 0.2°C | 11.1°C | -3.3°C | 138 mm | 91% | 0.3 m/s | 2.7 |
| 2007 | 9.8°C | 6.3°C | 2.8°C | 17.3°C | -4.0°C | 187 mm | 90% | 0.3 m/s | 2.6 |
| 2006 | 8.6°C | 4.8°C | 1.1°C | 14.5°C | -3.9°C | 102 mm | 87% | 0.3 m/s | 2.9 |
| 2005 | 11.8°C | 7.6°C | 3.4°C | 19.8°C | -0.5°C | 151 mm | 86% | 0.4 m/s | 3.1 |
| 2004 | 11.0°C | 7.1°C | 3.2°C | 20.3°C | 0.4°C | 108 mm | 87% | 0.3 m/s | 3 |
| 2003 | 9.1°C | 6.1°C | 3.1°C | 16.5°C | -2.2°C | 260 mm | 91% | 0.3 m/s | 2.6 |
| 2002 | 6.3°C | 3.4°C | 0.5°C | 12.5°C | -3.9°C | 167 mm | 90% | 0.3 m/s | 2.6 |
| 2001 | 9.8°C | 5.8°C | 1.9°C | 17.9°C | -2.0°C | 120 mm | 88% | 0.3 m/s | 2.9 |
| 2000 | 8.3°C | 4.7°C | 1.2°C | 15.2°C | -3.3°C | 121 mm | 89% | 0.3 m/s | 3 |
| 1999 | 7.5°C | 4.0°C | 0.6°C | 17.6°C | -4.9°C | 154 mm | 90% | 0.3 m/s | 2.8 |
| 1998 | 9.6°C | 6.1°C | 2.6°C | 17.1°C | -2.7°C | 140 mm | 88% | 0.3 m/s | 3 |
| 1997 | 8.0°C | 4.9°C | 1.8°C | 15.3°C | -3.0°C | 302 mm | 90% | 0.4 m/s | 2.6 |
| 1996 | 10.1°C | 6.0°C | 2.0°C | 16.7°C | -4.6°C | 107 mm | 85% | 0.3 m/s | 3.1 |
| 1995 | 10.3°C | 6.0°C | 1.8°C | 18.4°C | -4.1°C | 176 mm | 84% | 0.3 m/s | 3 |
| 1994 | 11.3°C | 6.9°C | 2.6°C | 22.9°C | -4.3°C | 134 mm | 85% | 0.3 m/s | 3.1 |
| 1993 | 10.8°C | 6.5°C | 2.3°C | 14.7°C | -1.5°C | 160 mm | 86% | 0.3 m/s | 2.9 |
| 1992 🔥 | 14.8°C | 9.3°C | 3.9°C | 19.4°C | -0.1°C | 46 mm | 80% | 0.4 m/s | 3.5 |
| 1991 | 8.3°C | 4.6°C | 0.9°C | 18.4°C | -2.7°C | 162 mm | 88% | 0.3 m/s | 3.1 |
| 1990 | 10.2°C | 6.0°C | 1.9°C | 16.6°C | -4.0°C | 117 mm | 86% | 0.3 m/s | 3.1 |
| 1989 | 7.2°C | 4.0°C | 0.8°C | 12.7°C | -8.2°C | 238 mm | 92% | 0.3 m/s | 2.5 |
| 1988 | 9.4°C | 5.4°C | 1.5°C | 17.6°C | -3.1°C | 206 mm | 86% | 0.4 m/s | 2.9 |
| 1987 | 10.5°C | 6.6°C | 2.7°C | 22.4°C | -1.9°C | 203 mm | 87% | 0.3 m/s | 3.1 |
| 1986 | 11.6°C | 7.5°C | 3.3°C | 17.9°C | 0.2°C | 122 mm | 87% | 0.3 m/s | 2.8 |
| 1985 | 7.6°C | 3.8°C | -0.1°C | 13.0°C | -4.6°C | 131 mm | 87% | 0.3 m/s | 3.3 |
| 1984 | 10.6°C | 6.9°C | 3.2°C | 17.1°C | -0.5°C | 171 mm | 89% | 0.3 m/s | 3.1 |
| 1983 | 10.7°C | 7.0°C | 3.2°C | 14.5°C | 0.8°C | 224 mm | 89% | 0.3 m/s | — |
| 1982 | 8.4°C | 4.6°C | 0.8°C | 14.8°C | -2.1°C | 141 mm | 87% | 0.3 m/s | — |
| 1981 | 11.3°C | 6.8°C | 2.4°C | 16.2°C | -2.4°C | 108 mm | 84% | 0.3 m/s | — |
Actual recorded March data for each year, 1981–2025 — sourced from NASA POWER.
The average high in March is around 9.4°C with lows near 2°C (mean 5.7°C), based on 45 years of NASA POWER data.
March averages 163 mm of rainfall in Spanaway, a relatively wet time of year. The wettest on record was 325 mm in 2017.
The hottest March reached 22.9°C in 1994. The coldest dipped to -8.2°C in 1989.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average March temperatures have fallen by about 0.3°C — but days and nights have moved in opposite directions. Overnight lows rose from 1.9°C to 2°C while daytime highs eased from 9.7°C to 9.1°C, narrowing the gap between day and night.
March is one of the cooler months of the year in Spanaway and a relatively wet time of year, so plan for around 9.4°C daytime highs and 2°C at night.
Not quite — March is the 5th coolest month in Spanaway, averaging 5.7°C.
For March in Spanaway, pack warm layers and a jacket for chilly mornings, with typical highs of 9.4°C and lows of 2°C. Bring an umbrella or light rain jacket too.
Relative humidity in March averages 88% — quite humid.
Average wind speed in March is 0.3 m/s. The windiest March on record averaged 0.4 m/s (1988).
The wettest March on record was 2017 with 325 mm. On average, March sees 163 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 Spanaway 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.
