ClimateAverages

Kingston Climate

Ontario, Canada · population 114,195 · 411 weather stations within 200 km · records 1750 to 2025

Average annual daytime high
11.5°C
Warmest month · July
25.4°C
Typical daytime high
Coldest month · January
-11.2°C
Typical overnight low

Kingston has an average annual daytime high of 11.5°C, based on the 1951 to 1980 baseline. Its warmest month is July, when highs typically reach 25.4°C, and its coldest is January, with overnight lows near -11.2°C.

Month by month averages

MonthAvg highAvg low
January-2.7°C-11.2°CColdest
February-2.1°C-10.9°C
March2.4°C-5.2°C
April9.7°C1.3°C
May16.5°C7.5°C
June22.2°C13.3°C
July25.4°C16.5°CWarmest
August24.6°C15.9°C
September20.3°C11.8°C
October13.9°C5.9°C
November7.3°C0.7°C
December0.1°C-7.5°C

Temperature range across the year

-13°-3°7°17°27°JanFebMarAprMayJunJulAugSepOctNovDec
Daytime high Overnight low
Hottest year on record
2011
+2.7°C vs. 1951–1980
Coldest year on record
1783
-2.6°C vs. 1951–1980

These figures reflect annual averages, not single-day records. Daily observations are outside this dataset's precision.

Is Kingston getting hotter?

Since 1900, Kingston's average temperature has risen by +2.3°C. Compared to the earliest station records that begin in 1750, warming totals +2.8°C.

6.5°7.2°7.9°8.6°9.3°1951–1980 baseline190019251950197520002025

20-year smoothed annual temperature reconstructed from station anomalies. Dashed line: 1951–1980 baseline.

Best time to visit
May to September

Daytime highs sit within a comfortable 15°C to 26°C range.

FAQ

What is the average temperature in Kingston?

Kingston's average annual daytime high is 11.5°C, based on the 1951 to 1980 baseline period. The warmest month is July, with highs averaging 25.4°C, and the coldest is January, with lows averaging -11.2°C.

What is the warmest month in Kingston?

July is the warmest month in Kingston, with typical daytime highs of 25.4°C.

What is the hottest year on record for Kingston?

2011 is the hottest year on record for Kingston, running +2.7°C above the 1951 to 1980 baseline.

Is Kingston getting hotter?

Yes. Since 1900, Kingston has warmed by roughly +2.3°C.

When is the best time to visit Kingston?

May to September typically offers the most comfortable daytime highs, in the 15°C to 26°C range.

Nearby cities

Baseline period 1951 to 1980. Monthly averages are the mean of station observations weighted by proximity. Warming trend is the 20-year smoothed anomaly against that baseline.