Acton Weather in April
Average highs run from 73°F on April 1 to 79°F on April 30, and lows from 43°F to 49°F. Normal precipitation for the month is 0.39 in over about 2 wet days.
April day by day
The normal high and low for each date, and the record, in °F.
- Normal low
- Normal high
- Record high
- Record low
April at a glance
- Average high
- 75°F
- Average low
- 46°F
- Precipitation
- 0.39 in
- Record high
- 96°FApr 22, 1949
- Record low
- 26°FApr 4, 1955
- Chance of a freeze
- 23%
- Days of 90°F or more
- 2.1
- Daylight
- 12 h 34 min to 13 h 33 min
- Cloud cover
- 32%
- Humidity
- 56%
- Dew point
- 37°F
- Wind
- 8.3 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 |
|---|---|---|---|---|---|
| Apr 1 | 73°F | 43°F | 92°F 1966 | 27°F 1971 | 10% |
| Apr 2 | 73°F | 43°F | 90°F 1966 | 29°F 1936 | 10% |
| Apr 3 | 73°F | 44°F | 93°F 1961 | 29°F 1934 | 9% |
| Apr 4 | 73°F | 44°F | 95°F 1961 | 26°F 1955 | 9% |
| Apr 5 | 73°F | 44°F | 91°F 1960 | 27°F 1955 | 9% |
| Apr 6 | 74°F | 44°F | 88°F 2007 | 27°F 1955 | 9% |
| Apr 7 | 74°F | 44°F | 87°F 2022 | 29°F 2012 | 9% |
| Apr 8 | 74°F | 44°F | 91°F 2022 | 30°F 1958 | 8% |
| Apr 9 | 74°F | 44°F | 90°F 1951 | 28°F 2011 | 8% |
| Apr 10 | 74°F | 45°F | 91°F 1951 | 26°F 1999 | 8% |
| Apr 11 | 75°F | 45°F | 90°F 1934 | 27°F 1953 | 8% |
| Apr 12 | 75°F | 45°F | 92°F 1934 | 28°F 1953 | 7% |
| Apr 13 | 75°F | 45°F | 92°F 2002 | 31°F 1965 | 7% |
| Apr 14 | 75°F | 45°F | 92°F 2002 | 28°F 1972 | 7% |
| Apr 15 | 75°F | 45°F | 91°F 1964 | 28°F 1970 | 7% |
| Apr 16 | 75°F | 46°F | 90°F 1954 | 30°F 1998 | 6% |
| Apr 17 | 76°F | 46°F | 94°F 1954 | 32°F 1937 | 6% |
| Apr 18 | 76°F | 46°F | 92°F 1950 | 28°F 1968 | 6% |
| Apr 19 | 76°F | 46°F | 92°F 1950 | 27°F 1955 | 6% |
| Apr 20 | 76°F | 47°F | 94°F 1950 | 28°F 1966 | 5% |
| Apr 21 | 76°F | 47°F | 95°F 2012 | 32°F 1957 | 5% |
| Apr 22 | 77°F | 47°F | 96°F 1949 | 28°F 1963 | 5% |
| Apr 23 | 77°F | 47°F | 95°F 1949 | 29°F 1968 | 5% |
| Apr 24 | 77°F | 48°F | 94°F 1937 | 32°F 1937 | 5% |
| Apr 25 | 77°F | 48°F | 91°F 2019 | 33°F 1960 | 5% |
| Apr 26 | 78°F | 48°F | 92°F 2004 | 33°F 1952 | 4% |
| Apr 27 | 78°F | 48°F | 94°F 2004 | 29°F 1955 | 4% |
| Apr 28 | 78°F | 49°F | 96°F 2020 | 31°F 1955 | 4% |
| Apr 29 | 78°F | 49°F | 94°F 2007 | 34°F 1967 | 4% |
| Apr 30 | 79°F | 49°F | 95°F 2021 | 33°F 1937 | 4% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (PDT).
- April 1
- sunrise 6:40 AM, sunset 7:14 PM
- April 30
- sunrise 6:04 AM, sunset 7:37 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00046624 (Palmdale), public domain. Records: NOAA GHCN-Daily, station USW00023182, 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.