Williams Lake, British Columbia Climate Data

Williams Lake, British Columbia climate data is summarized below. Average annual temperatures range from 30.7 °F (low) to 50.6 °F (high). Annual precipitation averages 16.6 Inches. Williams Lake is located in USDA Plant Hardiness Zone 5a. The growing season typically runs from the last frost around May 1 - May 10 through the first frost around Sep.11 - Sep. 20.

Avg Annual High50.6 °F
Avg Annual Low30.7 °F
Annual Precipitation16.6 in.
Hardiness ZoneZone 5a
Growing Season: Last frost around May 1 - May 10 — First frost around Sep.11 - Sep. 20 — Approximately Over 180 Days frost days per year.

Monthly Average Climate Data for Williams Lake, British Columbia

Average monthly temperatures and precipitation Switch to Celsius / Metric
MonthAvg. LowAvg. HighAvg. Precip
January-23.7 °F-19.3 °F0 in.
February-23.1 °F-17.5 °F177.8 in.
March-21.3 °F-15.2 °F228.6 in.
April-18.6 °F-11.9 °F939.8 in.
May-15.8 °F-8.7 °F1473.2 in.
June-13.7 °F-6.9 °F1879.6 in.
July-12.2 °F-4.5 °F1498.6 in.
August-12.7 °F-4.6 °F990.6 in.
September-15.3 °F-7.7 °F1270 in.
October-17.5 °F-11.9 °F1320.8 in.
November-20.6 °F-16.9 °F914.4 in.
December-23.5 °F-19.5 °F0 in.
Annual30.7 °F50.6 °F16.58 in.

Additional Climate Conditions

Feels Like High-5.13|-1.6|2.83|9.53|16.07|19.49|23.85|23.75|18.08|9.77|-0.61|-5.87 °F
Feels Like Low-14.54|-13.04|-9.38|-3.69|2.25|6.6|9.7|8.65|3.42|-1.44|-8.38|-14.31 °F
Avg Humidity88.91|84.12|75.73|63.73|62.22|63.76|57.83|57.69|66.23|75.64|84.45|86.95%
Avg Wind Speed8.29|7.75|8.71|7.95|6.76|6.49|6.15|6.04|6.79|8.04|9.4|8.84 mph
Cloud Cover85.4|81.5|75.8|70|62|60|49.4|49.5|53.3|67.44|79.7|81.3%
Days of Precipitation12|11|11|11|13|16|12|11|11|12|15|13 days/yr
Annual Snowfall73|41|25|6|0|0|0|0|0|2|40|81 in.

Climate Zone Data for Williams Lake, British Columbia

Average First Frost DateSep.11 - Sep. 20
Average Last Frost DateMay 1 - May 10
Average Days With FrostOver 180 Days
Plant Hardiness ZoneZone 5a : -20°F to -15°F
Current Drought ConditionsModerate Drought
2026 plantmaps.com