ClimateAverages

Welland Climate

Ontario, Canada · population 50,331 · 588 weather stations within 200 km · records 1750 to 2025

Average annual daytime high
13.2°C
Warmest month · July
26.7°C
Typical daytime high
Coldest month · February
-8.3°C
Typical overnight low

Welland has an average annual daytime high of 13.2°C, based on the 1951 to 1980 baseline. Its warmest month is July, when highs typically reach 26.7°C, and its coldest is February, with overnight lows near -8.3°C.

Month by month averages

MonthAvg highAvg low
January-0.4°C-8.1°C
February0.0°C-8.3°CColdest
March4.1°C-3.8°C
April10.9°C1.7°C
May18.3°C8.0°C
June24.2°C14.0°C
July26.7°C16.8°CWarmest
August25.7°C16.2°C
September22.0°C12.5°C
October15.4°C6.6°C
November8.7°C1.6°C
December2.5°C-4.4°C

Temperature range across the year

-10°-1°9°19°29°JanFebMarAprMayJunJulAugSepOctNovDec
Daytime high Overnight low
Hottest year on record
2011
+2.7°C vs. 1951–1980
Coldest year on record
1783
-2.5°C vs. 1951–1980

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

Is Welland getting hotter?

Since 1900, Welland's average temperature has risen by +2.1°C. Compared to the earliest station records that begin in 1750, warming totals +2.7°C.

8.0°8.6°9.3°9.9°10.6°1951–1980 baseline190019251950197520002025

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

Best time to visit
May to October

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

FAQ

What is the average temperature in Welland?

Welland's average annual daytime high is 13.2°C, based on the 1951 to 1980 baseline period. The warmest month is July, with highs averaging 26.7°C, and the coldest is February, with lows averaging -8.3°C.

What is the warmest month in Welland?

July is the warmest month in Welland, with typical daytime highs of 26.7°C.

What is the hottest year on record for Welland?

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

Is Welland getting hotter?

Yes. Since 1900, Welland has warmed by roughly +2.1°C.

When is the best time to visit Welland?

May to October 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.