ClimateAverages

Milton Climate

Ontario, Canada · population 84,362 · 561 weather stations within 200 km · records 1750 to 2025

Average annual daytime high
12.0°C
Warmest month · July
26.3°C
Typical daytime high
Coldest month · January
-11.2°C
Typical overnight low

Milton has an average annual daytime high of 12.0°C, based on the 1951 to 1980 baseline. Its warmest month is July, when highs typically reach 26.3°C, and its coldest is January, with overnight lows near -11.2°C.

Month by month averages

MonthAvg highAvg low
January-3.1°C-11.2°CColdest
February-1.8°C-10.7°C
March3.1°C-5.8°C
April11.4°C0.5°C
May18.4°C6.0°C
June23.7°C11.2°C
July26.3°C13.6°CWarmest
August25.2°C13.1°C
September20.8°C9.2°C
October13.9°C3.5°C
November6.4°C-1.1°C
December-0.5°C-7.8°C

Temperature range across the year

-13°-3°8°18°28°JanFebMarAprMayJunJulAugSepOctNovDec
Daytime high Overnight low
Hottest year on record
2011
+2.9°C vs. 1951–1980
Coldest year on record
1783
-2.8°C vs. 1951–1980

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

Is Milton getting hotter?

Since 1900, Milton's average temperature has risen by +2.2°C. Compared to the earliest station records that begin in 1750, warming totals +2.8°C.

6.2°6.9°7.6°8.2°8.9°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 Milton?

Milton's average annual daytime high is 12.0°C, based on the 1951 to 1980 baseline period. The warmest month is July, with highs averaging 26.3°C, and the coldest is January, with lows averaging -11.2°C.

What is the warmest month in Milton?

July is the warmest month in Milton, with typical daytime highs of 26.3°C.

What is the hottest year on record for Milton?

2011 is the hottest year on record for Milton, running +2.9°C above the 1951 to 1980 baseline.

Is Milton getting hotter?

Yes. Since 1900, Milton has warmed by roughly +2.2°C.

When is the best time to visit Milton?

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.