Santa Rosa weather in April: Santa Rosa, California: normal highs, lows, rain and records for April
Santa Rosa in April has a normal high of 69°F and a normal low of 43°F, a daily mean of 56°F, rising from 67°F on the 1st to 72°F by the 30th. Measurable precipitation falls on 8 days in a normal April, 2.10 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 21°C and low of 6°C, 53 mm of precipitation in April.
- NOAA stationSanta Rosa Sonoma County Airport
- Station IDUSW00023213
- Location38.50°N 122.81°W
- Elevation114 ft (35 m)
- Population177,524
- Jan 58° 38°
- Feb 62° 39°
- Mar 65° 41°
- Apr 69° 43°
- May 75° 47°
- Jun 82° 50°
- Jul 84° 52°
- Aug 84° 52°
- Sep 83° 50°
- Oct 77° 46°
- Nov 65° 40°
- Dec 58° 37°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Santa Rosa in April?
The normal high is 69°F and the normal low 43°F, for a daily mean of 56.1°F. April is 2.8°F warmer than March and 4.6°F cooler than May. April is the 7th warmest month of the year in Santa Rosa and the 6th wettest. Across the month the normal high rises 5°F, from 67°F on April 1 to 72°F on April 30. From one year to the next April's mean temperature typically moves about 2.2°F either way (NOAA's standard deviation), so roughly two Aprils in three average between 54°F and 58°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 31%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| April 1 | 67°F | 42°F | 31% | 19% |
| April 8 | 68°F | 43°F | 29% | 17% |
| April 15 | 69°F | 43°F | 26% | 15% |
| April 22 | 70°F | 44°F | 21% | 12% |
| April 30 | 72°F | 44°F | 18% | 10% |
Every day of April: normal high, low and chance of precipitation (warmest afternoon April 30, coldest night April 1)
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in | Daylight |
|---|---|---|---|---|---|
| April 1 | 67°F | 42°F | 31% | 19% | 12 h 40 min |
| April 2 | 67°F | 42°F | 31% | 19% | 12 h 40 min |
| April 3 | 67°F | 42°F | 31% | 19% | 12 h 40 min |
| April 4 | 67°F | 43°F | 30% | 18% | 12 h 40 min |
| April 5 | 67°F | 43°F | 30% | 18% | 12 h 50 min |
| April 6 | 67°F | 43°F | 30% | 18% | 12 h 50 min |
| April 7 | 68°F | 43°F | 29% | 18% | 12 h 50 min |
| April 8 | 68°F | 43°F | 29% | 17% | 12 h 50 min |
| April 9 | 68°F | 43°F | 29% | 17% | 13 h |
| April 10 | 68°F | 43°F | 28% | 17% | 13 h |
| April 11 | 68°F | 43°F | 28% | 16% | 13 h |
| April 12 | 68°F | 43°F | 27% | 16% | 13 h |
| April 13 | 69°F | 43°F | 27% | 16% | 13 h 10 min |
| April 14 | 69°F | 43°F | 26% | 15% | 13 h 10 min |
| April 15 | 69°F | 43°F | 26% | 15% | 13 h 10 min |
| April 16 | 69°F | 43°F | 25% | 15% | 13 h 10 min |
| April 17 | 69°F | 43°F | 24% | 14% | 13 h 10 min |
| April 18 | 69°F | 43°F | 24% | 14% | 13 h 20 min |
| April 19 | 70°F | 43°F | 23% | 13% | 13 h 20 min |
| April 20 | 70°F | 43°F | 23% | 13% | 13 h 20 min |
| April 21 | 70°F | 44°F | 22% | 12% | 13 h 20 min |
| April 22 | 70°F | 44°F | 21% | 12% | 13 h 30 min |
| April 23 | 70°F | 44°F | 21% | 12% | 13 h 30 min |
| April 24 | 70°F | 44°F | 20% | 11% | 13 h 30 min |
| April 25 | 71°F | 44°F | 20% | 11% | 13 h 30 min |
| April 26 | 71°F | 44°F | 19% | 11% | 13 h 40 min |
| April 27 | 71°F | 44°F | 19% | 11% | 13 h 40 min |
| April 28 | 71°F | 44°F | 19% | 10% | 13 h 40 min |
| April 29 | 71°F | 44°F | 18% | 10% | 13 h 40 min |
| April 30 | 72°F | 44°F | 18% | 10% | 13 h 40 min |
- Normal high
- 69°FApril average
- Normal low
- 43°FApril average
- Precipitation
- 2.10 inmonth total
- Days with precipitation
- 80.01 inch or more
- Days at 90°F or more
- 1
- Nights at 32°F or colder
- 1
- Daylight
- 12 h 40 min to 13 h 40 minApril 1 to April 30
- Days at 70°F or more
- 13
- Days at 80°F or more
- 4
- Sunshine
- 84%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00023213; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Santa Rosa in April?
On a given April day the chance of 0.01 inch or more is 25% on average, highest around April 1 (31%). In all, 2.10 in falls on 8 days of a normal April.
In a normal April in Santa Rosa, 1 days reach 90°F and 1 nights fall to freezing.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00023213.
What are the records for April in Santa Rosa?
The warmest April temperature on this station's record (since 1998) is 94°F, on April 26, 2004; the coldest is 31°F, on April 9, 1999. The wettest April brought 5.83 in (2006).
The April mean against the 1991-2020 normal of 56.1°F: 2021 55.2°F (−0.9), 2022 56.0°F (−0.1), 2023 56.6°F (+0.5), 2024 57.1°F (+1.0), 2025 56.3°F (+0.2), 2026 56.6°F (+0.5). 4 of 6 ran warmer than normal.
| April | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 55.2°F | −0.9°F | 0.09 in |
| 2022 | 56.0°F | −0.1°F | 2.06 in |
| 2023 | 56.6°F | +0.5°F | 0.47 in |
| 2024 | 57.1°F | +1.0°F | 0.90 in |
| 2025 | 56.3°F | +0.2°F | 0.50 in |
| 2026 | 56.6°F | +0.5°F | 3.63 in |
Source: records: ACIS, station USW00023213; recent months: ACIS, station USW00023213. Records and recent months use complete months only.
How does April in Santa Rosa compare across California?
Across the 219 places PlainClimate covers in California, April normal highs run from 49°F in Tahoma to 87°F in Brawley; Santa Rosa's is 69°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.