Port Huron (MI) Temperature by Month
The average annual maximum temperature in Port Huron, Michigan, United States of America is 14°C (57°F), with daytime highs ranging from -1°C (30°F) in February to 27°C (81°F) in July. This page covers monthly averages, day-night differences, and how Port Huron compares to cities worldwide.
Port Huron Monthly Temperatures
Depending on the time of the year, temperatures range from warm to very cold in Port Huron. Nighttime lows follow the same pattern, ranging from 17°C (63°F) to -9°C (16°F).
The chart below illustrates the average maximum day and minimum night temperatures in Port Huron by month:
Temperatures tend to bottom out between 4 AM and 6 AM, then climb to their daily peak around 3 PM.
The chart below shows the average temperature throughout the year:
Temperature: Port Huron vs the United States of America
The map below shows the annual temperature across the United States of America. You can also select individual months if you want to compare a specific time of year.
very warm
warm
pleasant
moderate
cold
very cold
Port Huron vs World: Temperature Compared
Port Huron's average annual maximum temperature is 14°C (57°F). To put that in context, here's how it compares to a few well-known destinations:
Barcelona, Spain has an annual average of around 21°C (70°F), with warm summers and mild, fairly short winters.
Queenstown, New Zealand averages 10°C (50°F) annually — remember seasons are flipped, so its coldest months fall in June and July.
Osaka, Japan averages 22°C (72°F) annually, with hot humid summers, mild winters, and pleasant spring and autumn seasons.
Adelaide, Australia averages 21°C (70°F) a year, with warm summers, mild winters, and relatively low rainfall year-round.
Climate temperature data is typically calculated as a 30-year average. This smooths out year-to-year variability and gives a more reliable picture of what a place is actually like, rather than what happened in any single unusual year.
The readings come from a range of sources — land-based weather stations, ocean buoys, ships, and satellites. That data is collected by weather services around the world, then pooled, quality-checked, and averaged to produce the climate records you see here.
Whether a city sits on the coast or deep inland makes a significant difference to its climate. Coastal areas tend to have more stable temperatures year-round — large bodies of water absorb heat slowly in summer and release it gradually in winter, keeping extremes in check. Cities far from the sea don't benefit from that buffer, which is why continental climates tend to have hotter summers and colder winters than their coastal counterparts at the same latitude.
For more on Port Huron's weather — including monthly rainfall, sunshine hours, and humidity — visit our Port Huron climate page.
