Union Weather in April
Average highs run from 56°F on April 1 to 63°F on April 30, and lows from 33°F to 37°F. Normal precipitation for the month is 1.68 in over about 13 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
- 59°F
- Average low
- 34°F
- Precipitation
- 1.68 in
- Snowfall
- 0.4 in
- Record high
- 88°FApr 24, 1977
- Record low
- 16°FApr 13, 1968
- Chance of a freeze
- 100%
- Daylight
- 12 h 48 min to 14 h 15 min
- Cloud cover
- 71%
- Humidity
- 73%
- Dew point
- 30°F
- Wind
- 5.1 mph
Every day of the month
A wet day has at least 0.01 inch of precipitation; snow means at least 0.1 inch of snowfall.
| Date | Normal high | Normal low | Record high | Record low | Chance wet | Chance of snow |
|---|---|---|---|---|---|---|
| Apr 1 | 56°F | 33°F | 72°F 1966 | 21°F 1971 | 41% | 4% |
| Apr 2 | 56°F | 33°F | 74°F 1966 | 20°F 1976 | 41% | 4% |
| Apr 3 | 56°F | 33°F | 78°F 1992 | 21°F 1972 | 41% | 3% |
| Apr 4 | 56°F | 33°F | 74°F 2016 | 21°F 2008 | 41% | 3% |
| Apr 5 | 56°F | 33°F | 73°F 1977 | 19°F 2023 | 41% | 3% |
| Apr 6 | 57°F | 33°F | 77°F 1977 | 20°F 1997 | 42% | 3% |
| Apr 7 | 57°F | 33°F | 78°F 1966 | 21°F 1970 | 42% | 3% |
| Apr 8 | 57°F | 33°F | 78°F 1966 | 22°F 1973 | 42% | 3% |
| Apr 9 | 57°F | 33°F | 81°F 1996 | 22°F 2010 | 42% | 3% |
| Apr 10 | 57°F | 33°F | 76°F 1985 | 23°F 2010 | 42% | 3% |
| Apr 11 | 58°F | 34°F | 83°F 2016 | 23°F 2007 | 42% | 2% |
| Apr 12 | 58°F | 34°F | 79°F 1988 | 20°F 1997 | 42% | 2% |
| Apr 13 | 58°F | 34°F | 80°F 1988 | 16°F 1968 | 42% | 2% |
| Apr 14 | 58°F | 34°F | 80°F 1988 | 23°F 1983 | 42% | 2% |
| Apr 15 | 59°F | 34°F | 79°F 1985 | 23°F 1967 | 42% | 2% |
| Apr 16 | 59°F | 34°F | 77°F 1985 | 22°F 1982 | 42% | 2% |
| Apr 17 | 59°F | 34°F | 79°F 1990 | 22°F 1970 | 41% | 2% |
| Apr 18 | 59°F | 35°F | 80°F 1994 | 23°F 1968 | 41% | 2% |
| Apr 19 | 60°F | 35°F | 80°F 1989 | 22°F 1966 | 41% | 2% |
| Apr 20 | 60°F | 35°F | 81°F 2016 | 22°F 1977 | 41% | 2% |
| Apr 21 | 60°F | 35°F | 82°F 2016 | 19°F 2008 | 40% | 1% |
| Apr 22 | 60°F | 35°F | 84°F 2012 | 24°F 1968 | 40% | 1% |
| Apr 23 | 61°F | 36°F | 86°F 1977 | 25°F 1992 | 40% | 1% |
| Apr 24 | 61°F | 36°F | 88°F 1977 | 24°F 2002 | 40% | 1% |
| Apr 25 | 61°F | 36°F | 88°F 1977 | 25°F 2023 | 40% | 1% |
| Apr 26 | 62°F | 36°F | 80°F 1977 | 24°F 2008 | 40% | 1% |
| Apr 27 | 62°F | 36°F | 80°F 2004 | 26°F 2026 | 40% | 1% |
| Apr 28 | 62°F | 37°F | 87°F 1987 | 24°F 1984 | 40% | 1% |
| Apr 29 | 63°F | 37°F | 80°F 1987 | 24°F 1975 | 40% | 1% |
| Apr 30 | 63°F | 37°F | 83°F 2021 | 22°F 1972 | 40% | 1% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (PDT).
- April 1
- sunrise 6:32 AM, sunset 7:20 PM
- April 30
- sunrise 5:42 AM, sunset 7:57 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00358746 (Union), public domain. Records: NOAA GHCN-Daily, station USC00354622, 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.