Norwalk Weather in March
Average highs run from 70°F on March 1 to 72°F on March 31, and lows from 50°F to 53°F. Normal precipitation for the month is 1.74 in over about 5 wet days.
March day by day
The normal high and low for each date, and the record, in °F.
- Normal low
- Normal high
- Record high
- Record low
March at a glance
- Average high
- 71°F
- Average low
- 52°F
- Precipitation
- 1.74 in
- Record high
- 100°FMar 17, 2026
- Record low
- 36°FMar 12, 2006
- Chance of a freeze
- 0%
- Days of 90°F or more
- 1.0
- Daylight
- 11 h 28 min to 12 h 31 min
- Cloud cover
- 38%
- Humidity
- 66%
- Dew point
- 43°F
- Wind
- 6.9 mph
Every day of the month
A wet day has at least 0.01 inch of precipitation.
| Date | Normal high | Normal low | Record high | Record low | Chance wet |
|---|---|---|---|---|---|
| Mar 1 | 70°F | 50°F | 92°F 2013 | 38°F 2007 | 24% |
| Mar 2 | 70°F | 50°F | 92°F 2010 | 40°F 2007 | 23% |
| Mar 3 | 70°F | 50°F | 84°F 2012 | 42°F 2023 | 23% |
| Mar 4 | 70°F | 50°F | 95°F 2012 | 40°F 2018 | 23% |
| Mar 5 | 70°F | 51°F | 84°F 2007 | 42°F 2006 | 22% |
| Mar 6 | 70°F | 51°F | 88°F 2007 | 40°F 2017 | 22% |
| Mar 7 | 70°F | 51°F | 91°F 2004 | 41°F 2022 | 21% |
| Mar 8 | 70°F | 51°F | 94°F 2004 | 42°F 2012 | 21% |
| Mar 9 | 70°F | 51°F | 89°F 2012 | 44°F 2025 | 21% |
| Mar 10 | 71°F | 51°F | 83°F 2008 | 40°F 2010 | 20% |
| Mar 11 | 71°F | 51°F | 97°F 2007 | 42°F 2010 | 20% |
| Mar 12 | 71°F | 51°F | 95°F 2007 | 36°F 2006 | 19% |
| Mar 13 | 71°F | 51°F | 93°F 2015 | 38°F 2006 | 19% |
| Mar 14 | 71°F | 52°F | 96°F 2015 | 39°F 2006 | 19% |
| Mar 15 | 71°F | 52°F | 94°F 2015 | 42°F 2002 | 18% |
| Mar 16 | 71°F | 52°F | 93°F 2014 | 41°F 2021 | 18% |
| Mar 17 | 71°F | 52°F | 100°F 2026 | 43°F 2021 | 18% |
| Mar 18 | 71°F | 52°F | 92°F 2026 | 42°F 2002 | 17% |
| Mar 19 | 71°F | 52°F | 93°F 2026 | 43°F 2002 | 17% |
| Mar 20 | 71°F | 52°F | 94°F 2026 | 44°F 2002 | 17% |
| Mar 21 | 71°F | 52°F | 83°F 2008 | 46°F 1999 | 16% |
| Mar 22 | 72°F | 52°F | 90°F 2008 | 43°F 2006 | 16% |
| Mar 23 | 72°F | 52°F | 92°F 2008 | 41°F 2009 | 16% |
| Mar 24 | 72°F | 52°F | 87°F 2008 | 42°F 2011 | 15% |
| Mar 25 | 72°F | 52°F | 87°F 2015 | 45°F 2005 | 15% |
| Mar 26 | 72°F | 52°F | 96°F 2015 | 44°F 2023 | 15% |
| Mar 27 | 72°F | 52°F | 91°F 2015 | 44°F 2020 | 14% |
| Mar 28 | 72°F | 52°F | 94°F 2004 | 46°F 2007 | 14% |
| Mar 29 | 72°F | 52°F | 93°F 2004 | 45°F 2007 | 14% |
| Mar 30 | 72°F | 53°F | 91°F 2003 | 47°F 2007 | 14% |
| Mar 31 | 72°F | 53°F | 91°F 2011 | 47°F 2000 | 14% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (PDT).
- March 1
- sunrise 6:21 AM, sunset 5:49 PM
- March 31
- sunrise 6:41 AM, sunset 7:12 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USW00003166 (Fullerton Muni AP), public domain. Records: NOAA GHCN-Daily, station USW00003166, every year on file, quality-flagged values removed. Cloud, humidity, wind and sunshine: NASA POWER (MERRA-2, CERES and GEWEX SRB), 1991-2020. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division: POWER Daily API v2, accessed 2026-09-24. Sun and moon: computed with the NOAA solar equations and Meeus.