Caledonia, Ontario Climate Data

Caledonia, Ontario climate data is summarized below. Average annual temperatures range from 38.9 °F (low) to 56.5 °F (high). Annual precipitation averages 36 Inches. Caledonia is located in USDA Plant Hardiness Zone 6b. The growing season typically runs from the last frost around Apr. 11 - Apr. 20 through the first frost around Nov. 1 - Nov. 10.

Avg Annual High56.5 °F
Avg Annual Low38.9 °F
Annual Precipitation36 in.
Hardiness ZoneZone 6b
Growing Season: Last frost around Apr. 11 - Apr. 20 — First frost around Nov. 1 - Nov. 10 — Approximately 100-125 Days frost days per year.

Monthly Average Climate Data for Caledonia, Ontario

Average monthly temperatures and precipitation Switch to Celsius / Metric
MonthAvg. LowAvg. HighAvg. Precip
January-22.4 °F-18.3 °F787.4 in.
February-23.2 °F-18.5 °F838.2 in.
March-19.9 °F-14.6 °F2184.4 in.
April-16.7 °F-10.6 °F2463.8 in.
May-13.3 °F-6.6 °F2667 in.
June-10.3 °F-4 °F2082.8 in.
July-9 °F-2.5 °F2438.4 in.
August-9.3 °F-3.1 °F2133.6 in.
September-11.6 °F-5.4 °F1981.2 in.
October-14.5 °F-9.3 °F2209.8 in.
November-17.7 °F-13.1 °F1701.8 in.
December-20.1 °F-16.5 °F1727.2 in.
Annual38.9 °F56.5 °F36 in.

Additional Climate Conditions

Feels Like High-4.65|-5.28|2.98|11.41|19.91|25.39|28.59|27.53|22.56|14.53|6.47|-0.79 °F
Feels Like Low-13.84|-15.27|-8.25|-1.17|6.6|13.05|15.78|15.15|10.46|4.09|-3.02|-8.67 °F
Avg Humidity80|78|74.5|68.19|67.19|70.31|71.08|74.5|77.19|79|80.19|82%
Avg Wind Speed14.96|14.84|14.25|14.69|12.61|11.48|10.09|9.25|10.09|12.29|13.26|14 mph
Cloud Cover82|77.08|70.69|63|58|52|44.5|42|49|64.5|68.5|84.5%
Days of Precipitation10|9|11|12|13|11|11|10|9|12|11|11 days/yr
Annual Snowfall22|31|11|4|0|0|0|0|0|0|2|15 in.

Climate Zone Data for Caledonia, Ontario

2026 plantmaps.com