Millville (NJ) Temperature by Month

Millville, New Jersey, United States of America has an average annual maximum temperature of 18°C (64°F), ranging from 6°C (43°F) in January to 31°C (88°F) in July. Below you'll find a full monthly breakdown and a comparison with cities worldwide.

Visitors to Millville can expect significant temperature changes throughout the year. Nighttime temperatures also vary widely, ranging from 20°C (68°F) in July to -5°C (23°F) in January.

The chart below illustrates the average maximum day and minimum night temperatures in Millville by month:

The coldest point of the day usually falls between 4 AM and 6 AM, with temperatures peaking around 3 PM.

The chart below shows the average temperature throughout the year:

Millville's average annual maximum temperature is 18°C (64°F). To put that in context, here's how it compares to a few well-known destinations:

Athens, Greece sits at 23°C (73°F) on average, with hot dry summers and mild winters characteristic of the Mediterranean.

Toronto, Canada averages 13°C (55°F) annually, with cold snowy winters balanced by genuinely warm summers.

Shanghai, China averages 21°C (70°F) a year, with warm summers, mild winters, and a noticeable spring and autumn.

Tokyo, Japan averages 21°C (70°F) a year, with hot summers, cool winters, and a well-defined cherry blossom spring.

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.

For cities and regions with significant elevation, altitude is one of the biggest factors shaping local temperatures. As a rule of thumb, temperatures fall by around 6°C for every 1,000 metres gained, so a city at 2,000 metres will typically be around 12°C cooler than a city at sea level in the same region. Higher ground also tends to see more dramatic day-to-night temperature swings, since thinner air loses heat faster after sunset.

For more on Millville's weather, including monthly rainfall, sunshine hours, and humidity, visit our Millville climate page.