Day Valley, CA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Day Valley, a community in Santa Cruz County, California.
Overnight
54°F
Haze
Haze. Mostly clear, with a low around 54. West southwest wind around 1 mph.
7-day forecast for Day Valley
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 54°F | Haze | 1 mph WSW | 0% |
| Tuesday | 78°F | Haze then Sunny | 3 mph SW | 0% |
| Tuesday Night | 55°F | Patchy Fog then Partly Cloudy | 2 mph W | 0% |
| Wednesday | 77°F | Sunny | 0 to 3 mph SW | 0% |
| Wednesday Night | 56°F | Patchy Fog | 2 mph WNW | 0% |
| Thursday | 79°F | Sunny | 0 to 3 mph W | 0% |
| Thursday Night | 59°F | Mostly Clear | 2 mph NW | 0% |
| Friday | 84°F | Sunny | 0 to 3 mph WNW | 0% |
| Friday Night | 62°F | Mostly Clear | 2 mph W | 0% |
| Saturday | 83°F | Sunny | 0 to 3 mph W | 0% |
| Saturday Night | 61°F | Mostly Clear | 2 mph W | 0% |
| Sunday | 79°F | Sunny | 0 to 3 mph WSW | 0% |
| Sunday Night | 56°F | Partly Cloudy | 2 mph SSW | 0% |
| Monday | 73°F | Sunny | 0 to 5 mph SSW | 0% |
Forecast source: National Weather Service (api.weather.gov) for Day Valley (37.025, -121.856). Updated through the day.
Growing snapshot for Day Valley
Last spring frost
Jan 29
First fall frost
Dec 13
Growing season
323 days
Hardiness zone
9b
More local growing data for Day Valley: nearby ZIP 95003 weather · frost dates · planting calendar · California frost dates
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Climate data from the nearest NOAA station, Santa Cruz, Ca (6.8 mi from Day Valley). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.