Best year time to visit Port William

General weather information about Port William

Average annual temperature is 12.6 °C

Absolute maximum temperature: 33.4 °C

Absolute minimum temperature: -9.6 °C

Number of sunny days: 160 days

Number of rainy days: 194 days

Number of snow days: 11 days

* Weather data for Port William United States is based on climate observations for 2026 year

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Absolute maximum temperature (°C)	16.5	21.2	22.0	26.3	29.4	32.4	32.5	33.4	32.7	28.9	22.8	15.5
Average daytime temperature (°C)	6.7	11.3	11.4	17.4	22.2	26.0	28.9	27.9	25.6	18.8	11.8	8.6
Average temperature (°C)	2.8	4.5	5.1	11.4	16.3	20.4	23.5	22.5	19.8	13.7	6.2	4.3
Average night temperature (°C)	-0.2	-0.1	0.5	6.2	10.9	15.2	19.0	17.5	14.8	9.7	2.4	1.2
Absolute minimum temperature (°C)	-8.0	-9.6	-8.3	0.3	2.7	10.5	15.3	11.7	10.5	-1.1	-7.6	-4.1

The best time to visit Port William during the most sunny months:

The largest precipitation sum in Port William is at

January — 147(mm)

March — 134(mm)

July — 112(mm)

When is the best time to visit Port William?

The historical weather data above shows the warmest, sunniest and driest months to help you choose the best time to visit Port William.

What is the weather like in Port William?

See average temperature, rainfall and daylight hours for Port William by month in the table above.

How many sunny days does Port William have?

The monthly weather statistics above show sunshine and rainfall patterns for Port William throughout the year.