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Park climate1991–2020 climate normals186 m source elevationNASA POWER

Long-term atmospheric patterns including temperature, precipitation, and wind speeds

Monthly Climate Normals for Thunder Bay National Marine Sanctuary and Underwater Preserve in Michigan

Examine the twelve-month climate profile of Thunder Bay National Marine Sanctuary and Underwater Preserve based on NASA POWER measurements from 1991 to 2020. This data details average monthly temperature, precipitation rates, relative humidity, wind speed, and daylight hours at a single representative coordinate. These statistics provide a standardized view of historical climatic trends rather than current weather observations or localized variations across the marine protected area.

Annual climate pattern

Long-term monthly temperature averages and daily precipitation rates across twelve months

Thunder Bay National Marine Sanctuary and Underwater Preserve Annual Temperature and Precipitation Climate Normals

Average monthly temperatures span from sub-zero winter minimums to warm summer peaks across the annual cycle at Thunder Bay National Marine Sanctuary and Underwater Preserve. Average daily precipitation rates accompany these monthly thermal shifts according to NASA POWER records compiled for a representative coordinate.
Mean temperatureAverage minimum–maximum rangePrecipitation
Temperature (°C)PrecipitationUp to 2.5 mm/day-20°-10°0°10°20°30°-4°-4°-1°3°8°13°18°20°16°10°4°0°01231.41.31.42.52.32.42.42.52.32.41.81.5JanFebMarAprMayJunJulAugSepOctNovDec
Annual mean
7 °C
Warmest month
August
Coolest month
February
Wettest month
August
Twelve-month climate

Twelve Month Climatology of Temperatures, Precipitation, Humidity, Wind, and Daylight

Thunder Bay National Marine Sanctuary and Underwater Preserve Monthly Climate Comparison

Examine twelve months of average temperature bounds, daily precipitation rates, and atmospheric humidity across the calendar year. Compare long-term climate normals and calculated daylight hours to understand annual meteorological patterns at a representative park coordinate.
Mean temperaturePrecipitationHumidityWind speedDaylight
January-3.7 °C-12.1° to 4.5°1.4 mm/day88.5%7.5 m/s9 hours
February-4.1 °C-13° to 4.3°1.3 mm/day86.8%7.1 m/s10.2 hours
March-1 °C-10.6° to 8.7°1.4 mm/day82.7%6.4 m/s11.7 hours
April3.4 °C-3.1° to 13.1°2.5 mm/day80.8%6 m/s13.3 hours
May7.8 °C2° to 17.6°2.3 mm/day83.6%4.9 m/s14.7 hours
June13 °C6.1° to 22.1°2.4 mm/day84.7%4.3 m/s15.4 hours
July18.5 °C12.4° to 25.2°2.4 mm/day81.3%4.3 m/s15 hours
August19.5 °C14.5° to 25.7°2.5 mm/day79%4.8 m/s13.8 hours
September16.3 °C9° to 23.8°2.3 mm/day77.8%5.6 m/s12.3 hours
October10.1 °C3.5° to 19.1°2.4 mm/day79.1%6.6 m/s10.7 hours
November4.4 °C-2.5° to 12.4°1.8 mm/day81.1%7.2 m/s9.3 hours
December-0.3 °C-8.4° to 7.1°1.5 mm/day85.1%7.4 m/s8.6 hours
Calculated climate highlights

Comparing twelve stored monthly normals for temperature, precipitation, humidity, wind, and daylight duration

Calculated Monthly Climate Highlights and Extremes for Thunder Bay National Marine Sanctuary and Underwater Preserve

Calculated monthly comparisons highlight the warmest, coolest, wettest, driest, and windiest periods derived from long-term averages at a single coordinate. These metrics summarize seasonal patterns across twelve recorded normals rather than reflecting sudden weather events or site-wide extremes.
Warmest month
August19.5 °C
Coolest month
February-4.1 °C
Wettest month
August2.5 mm/day
Driest month
February1.3 mm/day
Most humid month
January88.5%
Windiest month
January7.5 m/s
Longest daylight
June15.4 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

Explore monthly temperature, precipitation, and regional atmospheric normals across diverse conservation landscapes

Comparing Thunder Bay National Marine Sanctuary and Underwater Preserve Climate With Other Protected Area Profiles

Examine long-term monthly normals for temperature and precipitation alongside humidity, wind, and daylight metrics across varied protected areas. Standardized records allow readers to analyze atmospheric variation and geographic contrast beyond Thunder Bay National Marine Sanctuary and Underwater Preserve.
MoriAtlas Explorer

Explore the Protected Landscapes of Thunder Bay National Marine Sanctuary and Underwater Preserve

Discover the maritime heritage and freshwater geography contained within the boundaries of Thunder Bay National Marine Sanctuary and Underwater Preserve. This MoriAtlas profile details the submerged archaeological sites and coastal environments that define this significant marine protected area along the shores of Michigan.