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Park climate1991–2020 climate normals46 m source elevationNASA POWER

Twelve month atmospheric profile featuring average temperature, precipitation, humidity, wind, and daylight data.

Channel Islands National Marine Sanctuary Monthly Climate Normals: Long Term Temperature and Precipitation Patterns

The climate profile for Channel Islands National Marine Sanctuary provides an analytical view of atmospheric variables based on representative data recorded from 1991 to 2020. This index details monthly average maximums, minimums, and mean temperatures alongside daily precipitation rates and relative humidity levels. Detailed wind speeds and average daylight hours characterize the annual cycle at a representative elevation of 46.33 meters, offering a precise climatological reference for this marine protected area.

Annual climate pattern

Long term monthly temperature means and average daily precipitation rates across twelve months

Channel Islands National Marine Sanctuary Annual Climate Normals and Monthly Temperature Patterns

Average minimum, mean, and maximum temperatures move through a moderate annual cycle with peak warmth occurring during late summer months. Average daily precipitation rates follow a distinct wet and dry distribution across the calendar year based on historical climatology normals for a representative coordinate.
Mean temperatureAverage minimum–maximum rangePrecipitation
Temperature (°C)PrecipitationUp to 3.6 mm/day5°10°15°20°25°14°14°14°14°15°16°18°18°19°18°16°14°012343.23.62.50.80.40.10.100.10.61.12.4JanFebMarAprMayJunJulAugSepOctNovDec
Annual mean
15.7 °C
Warmest month
September
Coolest month
February
Wettest month
February
Twelve-month climate

Compare twelve months of average temperature bounds, daily precipitation rates, and daylight hours

Channel Islands National Marine Sanctuary Weather by Month and Climate Normals

Examine twelve distinct monthly climate records for Channel Islands National Marine Sanctuary, tracking average minimum and maximum temperatures alongside daily precipitation rates. Evaluate how relative humidity, wind speed, and calculated daylight hours shift across the calendar year at a representative coordinate.
Mean temperaturePrecipitationHumidityWind speedDaylight
January13.8 °C10.1° to 19.6°3.2 mm/day76.6%4.5 m/s10 hours
February13.6 °C9.9° to 19.3°3.6 mm/day78.2%5 m/s10.8 hours
March13.7 °C10° to 19.4°2.5 mm/day80%5.3 m/s11.8 hours
April13.8 °C10.4° to 20°0.8 mm/day79.9%6 m/s12.9 hours
May14.7 °C11.7° to 19.7°0.4 mm/day81.1%6 m/s13.8 hours
June16.1 °C12.9° to 20.8°0.1 mm/day80.5%5.6 m/s14.2 hours
July17.8 °C14.5° to 22.3°0.1 mm/day80.2%5 m/s14 hours
August18.5 °C15.4° to 23.2°0 mm/day79%5.1 m/s13.2 hours
September18.6 °C15.3° to 24.6°0.1 mm/day78.3%4.9 m/s12.2 hours
October17.8 °C14.4° to 24.8°0.6 mm/day76.1%4.7 m/s11.1 hours
November16 °C12.1° to 22.4°1.1 mm/day74.2%4.6 m/s10.2 hours
December14 °C10.2° to 19.4°2.4 mm/day74.6%4.7 m/s9.8 hours
Calculated climate highlights

Comparative monthly averages for temperature, precipitation, wind, humidity, and daylight duration

Channel Islands National Marine Sanctuary Calculated Monthly Climate Highlights and Extremes

These calculated monthly comparisons identify the warmest, coolest, wettest, and driest periods derived from long term regional climatology records. Each highlighted high and low value reflects a statistical baseline across twelve averaged measurements rather than an observed weather event.
Warmest month
September18.6 °C
Coolest month
February13.6 °C
Wettest month
February3.6 mm/day
Driest month
August0 mm/day
Most humid month
May81.1%
Windiest month
April6 m/s
Longest daylight
June14.2 hours

Interactive climate map

Compare National Park Climate Data Through an Interactive Global Map

Visit the MoriAtlas climate map to compare long-term monthly temperature and precipitation metrics across national parks. This visual interface helps you understand seasonal variations at specific protected area coordinates to deepen your knowledge of global park geography and environmental characteristics.

Global National Park Climate Map
Other park climates

Analyze monthly climate normals, annual temperature rhythms, and regional atmospheric patterns across diverse protected landscapes.

Comparing Channel Islands National Marine Sanctuary Climate Profiles With Other Protected Areas

Examine long-term monthly temperature, precipitation, humidity, wind, and daylight records across various protected areas, starting from Channel Islands National Marine Sanctuary. Standardized metrics across different geographic settings reveal distinct atmospheric contrasts and multi-year environmental baselines.
MoriAtlas Explorer

Explore the Marine Geography of Channel Islands National Marine Sanctuary

Navigate the complex marine boundaries and underwater terrain of this essential protected area. MoriAtlas provides a clear view of the sanctuary ecosystem, including the seafloor gradients and island connections that shape this productive California coastal zone.