Santa Cruz County Climate
Santa Cruz County, California
NOAA NCEI 1991-2020 Climate NormalsAvg Annual Temp
58.5°F
Annual Precip
31.3"
Annual Snowfall
0.0"
Extreme Heat Days
18
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Growing Season & Gardening
9b
Minimum winter temperature range for plant survival
3,252
Supports most vegetables & fruits
Seasonal Overview
National Comparison
7-Day Outlook
Forecast
Current Conditions
Air Quality
Safety
Weather Alerts
Climate Advisory: Santa Cruz County
Climate Verdict
Santa Cruz County has a mild, with an average annual temperature of 58.5°F, moderate rainfall of 31.3 inches per year, rare extreme heat with only 18.375 days above 90°F annually, light snow averaging 0.0 inches per year. This climate profile shapes everything from energy costs to outdoor recreation opportunities.
Seasonal Breakdown
Winters are mild, with January temperatures averaging 51.2°F. summers are pleasantly cool with July averaging 64.8°F. The climate is remarkably stable year-round, with only a 14°F difference between January and July. December is typically the coldest month and August the warmest.
Outdoor & Gardening Guidance
The moderate temperatures support hiking, cycling, and camping comfortably in spring, summer, and fall.
Regional Context
Santa Cruz County closely matches the California statewide average temperature of 58.7°F, it is also noticeably wetter, receiving 5.6 inches more precipitation than the state average, the county experiences 40.295924962933874 fewer extreme heat days than the state average.
Climate Profile
About Santa Cruz County Weather
Moderate Coastal Warmth Year-Round
Santa Cruz maintains an average temperature of 58.5°F, staying above the national median. The proximity to the Pacific Ocean prevents the extreme temperature swings found inland.
Reflecting the Heart of California Weather
The county's 58.5°F average almost perfectly mirrors the California state average of 58.7°F. It occupies a middle-of-the-road position in the state's temperature rankings.
One of the Wettest Local Counties
Santa Cruz receives 31.3 inches of rain, far exceeding the California average of 25.8 inches. It is significantly wetter than its neighbor Santa Clara, which receives 10 inches less rain annually.
Cool Coastal Summers and Stable Winters
Summer averages stay cool at 64.5°F, and the county sees zero annual snowfall. Residents enjoy 18 days of extreme heat, while winter temperatures stay stable at 51.4°F.
Focus on Moisture and Rain Preparation
Given the high 31.3-inch rainfall, maintaining gutters and ensuring proper home drainage is essential. Lightweight jackets are the most practical year-round clothing choice for this steady climate.
Frequently Asked Questions
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Data sources: NOAA National Centers for Environmental Information (NCEI), U.S. Climate Normals 1991-2020. Forecast and alert data from National Weather Service API. Air quality data from Open-Meteo.
Climate normals are 30-year averages of weather variables. Station data is aggregated to county level. Forecasts and alerts are fetched live and may change frequently. Data is informational only — not a substitute for official National Weather Service forecasts or emergency weather warnings.