Altadena Weather in March
Average highs run from 71°F on March 1 to 75°F on March 31, and lows from 47°F to 49°F. Normal precipitation for the month is 3.03 in over about 6 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
- 73°F
- Average low
- 48°F
- Precipitation
- 3.03 in
- Record high
- 83°FMar 16, 2007
- Record low
- 14°FMar 3, 1966
- Chance of a freeze
- 0%
- Days of 90°F or more
- 0.9
- Daylight
- 11 h 28 min to 12 h 32 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 | 71°F | 47°F | 76°F 2016 | 18°F 1951 | 27% |
| Mar 2 | 71°F | 47°F | 73°F 2016 | 15°F 1952 | 27% |
| Mar 3 | 71°F | 47°F | 71°F 2016 | 14°F 1966 | 26% |
| Mar 4 | 71°F | 48°F | 74°F 1972 | 18°F 1976 | 26% |
| Mar 5 | 71°F | 48°F | 73°F 1972 | 23°F 1949 | 26% |
| Mar 6 | 71°F | 48°F | 71°F 1972 | 19°F 1956 | 25% |
| Mar 7 | 71°F | 48°F | 73°F 1972 | 17°F 1964 | 25% |
| Mar 8 | 72°F | 48°F | 73°F 2005 | 15°F 1952 | 24% |
| Mar 9 | 72°F | 48°F | 79°F 2005 | 21°F 1952 | 24% |
| Mar 10 | 72°F | 48°F | 78°F 2005 | 18°F 1962 | 23% |
| Mar 11 | 72°F | 48°F | 79°F 2007 | 17°F 1952 | 23% |
| Mar 12 | 72°F | 48°F | 79°F 2007 | 20°F 2006 | 23% |
| Mar 13 | 72°F | 48°F | 75°F 2004 | 15°F 1952 | 22% |
| Mar 14 | 72°F | 48°F | 78°F 2013 | 18°F 1952 | 22% |
| Mar 15 | 73°F | 48°F | 78°F 2007 | 20°F 1963 | 21% |
| Mar 16 | 73°F | 49°F | 83°F 2007 | 21°F 1952 | 21% |
| Mar 17 | 73°F | 49°F | 79°F 2026 | 20°F 1963 | 20% |
| Mar 18 | 73°F | 49°F | 79°F 2026 | 19°F 1963 | 20% |
| Mar 19 | 73°F | 49°F | 83°F 2026 | 20°F 1982 | 20% |
| Mar 20 | 73°F | 49°F | 81°F 2026 | 21°F 1952 | 19% |
| Mar 21 | 73°F | 49°F | 75°F 1976 | 15°F 1952 | 19% |
| Mar 22 | 74°F | 49°F | 73°F 1993 | 15°F 1952 | 18% |
| Mar 23 | 74°F | 49°F | 77°F 2026 | 20°F 1962 | 18% |
| Mar 24 | 74°F | 49°F | 76°F 1988 | 17°F 1964 | 18% |
| Mar 25 | 74°F | 49°F | 78°F 1988 | 19°F 1964 | 17% |
| Mar 26 | 74°F | 49°F | 77°F 1988 | 18°F 1975 | 17% |
| Mar 27 | 74°F | 49°F | 77°F 2015 | 22°F 1975 | 16% |
| Mar 28 | 74°F | 49°F | 74°F 2015 | 17°F 1975 | 16% |
| Mar 29 | 74°F | 49°F | 77°F 2015 | 22°F 1975 | 16% |
| Mar 30 | 75°F | 49°F | 77°F 2015 | 21°F 2009 | 15% |
| Mar 31 | 75°F | 49°F | 79°F 2011 | 23°F 1949 | 15% |
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 7:13 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00046719 (Pasadena), public domain. Records: NOAA GHCN-Daily, station USC00046006, 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.