March weather in St. Johns, AZ
The average temperature in St. Johns in March is 45.1°F (27.9°F–62.4°F). Average precipitation: 0.43 inches.
March is a spring month in St. Johns, and is cooler than the annual average of 54.1°F. Daily temperatures swing about 34.5°F between overnight low and afternoon high. Expect about 4 days with precipitation. Daylight averages about 11h 47m. For travel, March is cool.
Avg High
62.4°F
Avg Low
27.9°F
Precipitation
0.43 in
Daylight
11h 47m
March records in St. Johns
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| March 1 | 78.1°F (2026) | 6.3°F (2021) | 0.52 in (2014) |
| March 2 | 77.0°F (2009) | 7.0°F (2002) | 0.09 in (2015) |
| March 3 | 73.9°F (2016) | 1.9°F (2002) | 0.08 in (2004) |
| March 4 | 75.9°F (2016) | 5.0°F (2002) | 0.06 in (2014) |
| March 5 | 73.9°F (2006) | 9.0°F (2002) | 0.16 in (2004) |
| March 6 | 75.0°F (2006) | 12.2°F (2018) | 0.14 in (2005) |
| March 7 | 72.0°F (2007) | 15.3°F (2008) | 0.06 in (2010) |
| March 8 | 73.0°F (2004) | 13.1°F (2009) | 0.33 in (2013) |
| March 9 | 78.1°F (2004) | 10.0°F (2002) | 0.06 in (2010) |
| March 10 | 79.0°F (2017) | 17.2°F (2012) | 0.16 in (2018) |
| March 11 | 75.0°F (2016) | 17.2°F (2021) | 0.76 in (2018) |
| March 12 | 75.0°F (2005) | 14.2°F (2022) | 0.48 in (2019) |
| March 13 | 78.1°F (2003) | -1.8°F (2006) | 0.31 in (2025) |
| March 14 | 80.1°F (2007) | 6.3°F (2006) | 0.15 in (2010) |
| March 15 | 80.1°F (2013) | 18.0°F (2005) | 0.05 in (2025) |
| March 16 | 79.0°F (2007) | 16.0°F (2002) | 0.03 in (2022) |
| March 17 | 84.0°F (2007) | 19.2°F (2008) | 0.12 in (2001) |
| March 18 | 82.9°F (2026) | 20.1°F (2021) | 0.14 in (2020) |
| March 19 | 86.0°F (2026) | 16.0°F (2002) | 0.26 in (2005) |
| March 20 | 88.0°F (2026) | 13.1°F (2025) | 0.14 in (2015) |
| March 21 | 91.0°F (2026) | 14.0°F (2000) | 0.01 in (2006) |
| March 22 | 84.9°F (2026) | 23.2°F (2012) | 0.05 in (2011) |
| March 23 | 84.0°F (2026) | 17.2°F (2022) | 0.26 in (2007) |
| March 24 | 84.0°F (2026) | 15.3°F (2013) | 0.37 in (2021) |
| March 25 | 89.1°F (2026) | 18.1°F (2013) | 0.17 in (2005) |
| March 26 | 84.0°F (2026) | 21.9°F (2002) | 0.12 in (2009) |
| March 27 | 84.0°F (2026) | 18.1°F (2009) | 0.26 in (2018) |
| March 28 | 81.0°F (2015) | 19.2°F (2009) | 0.12 in (2017) |
| March 29 | 79.0°F (2026) | 19.9°F (2003) | 0.38 in (2006) |
| March 30 | 80.1°F (2004) | 19.9°F (2003) | 0.31 in (2000) |
| March 31 | 80.1°F (2004) | 19.2°F (2009) | 0.12 in (2000) |