Fullerton weather in March: Fullerton, California: normal highs, lows, rain and records for March
Fullerton in March has a normal high of 71°F and a normal low of 52°F, a daily mean of 61°F, rising from 70°F on the 1st to 72°F by the 31st. Measurable precipitation falls on 5 days in a normal March, 1.74 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 22°C and low of 11°C, 44 mm of precipitation in March.
- NOAA stationFullerton Municipal Airport
- Station IDUSW00003166
- Location33.87°N 117.98°W
- Elevation96 ft (29 m)
- From the center3 miles
- Population140,054
- Jan 69° 46°
- Feb 69° 48°
- Mar 71° 52°
- Apr 74° 54°
- May 76° 58°
- Jun 79° 63°
- Jul 84° 66°
- Aug 87° 66°
- Sep 85° 65°
- Oct 80° 58°
- Nov 74° 51°
- Dec 68° 46°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Fullerton in March?
The normal high is 71°F and the normal low 52°F, for a daily mean of 61.2°F. March is 2.6°F warmer than February and 2.8°F cooler than April. March is the 9th warmest month of the year in Fullerton and the 4th wettest. Across the month the normal high rises 2°F, from 70°F on March 1 to 72°F on March 31. From one year to the next March's mean temperature typically moves about 2.6°F either way (NOAA's standard deviation), so roughly two Marchs in three average between 59°F and 64°F.
Bars above: each day's normal high to low. Columns below: the chance of 0.01 inch or more of precipitation that day, on a scale of 0 to 100% (highest 24%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| March 1 | 70°F | 50°F | 24% | 13% |
| March 8 | 70°F | 51°F | 21% | 11% |
| March 15 | 71°F | 52°F | 18% | 9% |
| March 22 | 72°F | 52°F | 16% | 8% |
| March 31 | 72°F | 53°F | 14% | 6% |
Every day of March: normal high, low and chance of precipitation (warmest afternoon March 31, coldest night March 1)
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in | Daylight |
|---|---|---|---|---|---|
| March 1 | 70°F | 50°F | 24% | 13% | 11 h 30 min |
| March 2 | 70°F | 50°F | 23% | 13% | 11 h 30 min |
| March 3 | 70°F | 50°F | 23% | 13% | 11 h 30 min |
| March 4 | 70°F | 50°F | 23% | 12% | 11 h 30 min |
| March 5 | 70°F | 51°F | 22% | 12% | 11 h 30 min |
| March 6 | 70°F | 51°F | 22% | 12% | 11 h 40 min |
| March 7 | 70°F | 51°F | 21% | 11% | 11 h 40 min |
| March 8 | 70°F | 51°F | 21% | 11% | 11 h 40 min |
| March 9 | 70°F | 51°F | 21% | 11% | 11 h 40 min |
| March 10 | 71°F | 51°F | 20% | 10% | 11 h 40 min |
| March 11 | 71°F | 51°F | 20% | 10% | 11 h 50 min |
| March 12 | 71°F | 51°F | 19% | 10% | 11 h 50 min |
| March 13 | 71°F | 51°F | 19% | 10% | 11 h 50 min |
| March 14 | 71°F | 52°F | 19% | 9% | 11 h 50 min |
| March 15 | 71°F | 52°F | 18% | 9% | 11 h 50 min |
| March 16 | 71°F | 52°F | 18% | 9% | 12 h |
| March 17 | 71°F | 52°F | 18% | 9% | 12 h |
| March 18 | 71°F | 52°F | 17% | 8% | 12 h |
| March 19 | 71°F | 52°F | 17% | 8% | 12 h |
| March 20 | 71°F | 52°F | 17% | 8% | 12 h 10 min |
| March 21 | 71°F | 52°F | 16% | 8% | 12 h 10 min |
| March 22 | 72°F | 52°F | 16% | 8% | 12 h 10 min |
| March 23 | 72°F | 52°F | 16% | 7% | 12 h 10 min |
| March 24 | 72°F | 52°F | 15% | 7% | 12 h 10 min |
| March 25 | 72°F | 52°F | 15% | 7% | 12 h 20 min |
| March 26 | 72°F | 52°F | 15% | 7% | 12 h 20 min |
| March 27 | 72°F | 52°F | 14% | 7% | 12 h 20 min |
| March 28 | 72°F | 52°F | 14% | 7% | 12 h 20 min |
| March 29 | 72°F | 52°F | 14% | 7% | 12 h 20 min |
| March 30 | 72°F | 53°F | 14% | 6% | 12 h 30 min |
| March 31 | 72°F | 53°F | 14% | 6% | 12 h 30 min |
- Normal high
- 71°FMarch average
- Normal low
- 52°FMarch average
- Precipitation
- 1.74 inmonth total
- Days with precipitation
- 50.01 inch or more
- Days at 90°F or more
- 1
- Daylight
- 11 h 30 min to 12 h 30 minMarch 1 to March 31
- Days at 70°F or more
- 17
- Days at 80°F or more
- 5
- Sunshine
- 85%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00003166; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Fullerton in March?
On a given March day the chance of 0.01 inch or more is 18% on average, highest around March 1 (24%). In all, 1.74 in falls on 5 days of a normal March.
In a normal March in Fullerton, 1 days reach 90°F.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00003166.
What are the records for March in Fullerton?
The warmest March temperature on this station's record (since 1998) is 100°F, on March 17, 2026; the coldest is 36°F, on March 12, 2006. The wettest March brought 7.49 in (2023).
The March mean against the 1991-2020 normal of 61.2°F: 2021 59.2°F (−2.0), 2022 62.7°F (+1.5), 2023 58.1°F (−3.1), 2024 58.9°F (−2.3), 2026 69.1°F (+7.9). 2 of 5 ran warmer than normal.
| March | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 59.2°F | −2.0°F | 1.05 in |
| 2022 | 62.7°F | +1.5°F | 0.63 in |
| 2023 | 58.1°F | −3.1°F | 7.49 in |
| 2024 | 58.9°F | −2.3°F | 2.84 in |
| 2026 | 69.1°F | +7.9°F | 0.05 in |
Source: records: ACIS, station USW00003166; recent months: ACIS, station USW00003166. Records and recent months use complete months only.
How does March in Fullerton compare across California?
Across the 219 places PlainClimate covers in California, March normal highs run from 43°F in Tahoma to 81°F in Brawley; Fullerton's is 71°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.