Kingston (ON) Temperature by Month
Kingston in Ontario, Canada sees significant seasonal temperature differences, with daytime highs between -1°C (30°F) in January and 26°C (79°F) in July, averaging 13°C (55°F) annually. Explore the full monthly breakdown below.
Kingston Monthly Temperatures
Depending on the time of the year, temperatures range from comfortable to very cold in Kingston. At night, minimum temperatures range from 19°C (66°F) in July to -10°C (14°F) in January.
The chart below illustrates the average maximum day and minimum night temperatures in Kingston by month:
Daily lows are most common between 4 AM and 6 AM. By 3 PM temperatures reach their daily high, driven by peak solar heating. July, the warmest month of the year, receives 280 hours of sunshine.
The chart below shows the average temperature throughout the year:
Daily Historical Temperatures
50-year average (1976-2025)
Average high and low temperatures for each day of the month based on long-term records.
Average temperatures in June
Historical Kingston Temperatures: 1976-2026
Browse day-by-day temperature records for Kingston spanning 51 years. Select any month and year to see actual high and low temperatures recorded on each day.
Temperature: Kingston vs Canada
The map below shows the annual temperature across Canada. You can also select individual months if you want to compare a specific time of year.
very warm
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moderate
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Kingston vs World: Temperature Compared
Kingston's average annual maximum temperature is 13°C (55°F). To put that in context, here's how it compares to a few well-known destinations:
Rome, Italy averages 20°C (68°F) annually, with reliably warm summers and comfortable winters.
Zermatt, Switzerland averages just 4°C (39°F) annually due to its altitude, with very cold winters and cool summers even at its warmest.
Buenos Aires, Argentina averages 23°C (73°F) a year, with hot summers and mild winters — and seasons reversed compared to Europe.
Brisbane, Australia averages 26°C (79°F) a year, with warm winters and hot, humid summers.
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.
Global average temperatures have risen by around 1.2°C since the pre-industrial era, and the effects are visible across many regions. Winters are milder on average, with fewer frost days and less snow in many parts of the world. Heatwaves are more frequent and more intense, and Europe's summers of 2018, 2019, and 2020 all set records.
Summers are also getting drier in some areas, while winter rainfall has increased in others. This contributies to higher river levels and more flooding. In many countries, spring arrives earlier and autumn lasts longer. It has knock-on effects for wildlife, agriculture, and local ecosystems.
For more on Kingston's weather — including monthly rainfall, sunshine hours, and humidity — visit our Kingston climate page.
