Best year time to visit Saint Clair County

General weather information about Saint Clair County

Average annual temperature is 14.8 °C

Absolute maximum temperature: 37.6 °C

Absolute minimum temperature: -11.1 °C

Number of sunny days: 203 days

Number of rainy days: 159 days

Number of snow days: 3 days

Look at detailed online map of Saint Clair County

* Weather data for Saint Clair County United States is based on climate observations for 2026 year

Saint Clair County air temperature forecast for each month

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Absolute maximum temperature (°C)	19.7	21.4	23.3	28.3	32.2	35.4	37.2	37.6	32.6	30.3	26.5	17.9
Average daytime temperature (°C)	8.4	11.6	13.3	21.0	26.2	30.6	31.8	30.0	27.4	20.7	14.3	10.2
Average temperature (°C)	3.8	5.6	7.1	14.0	19.9	24.2	25.9	24.9	21.6	15.4	8.7	5.7
Average night temperature (°C)	0.6	1.2	2.5	8.3	14.3	18.3	21.3	20.6	16.8	11.1	4.3	2.6
Absolute minimum temperature (°C)	-11.1	-9.8	-6.5	1.1	6.5	12.7	17.4	14.1	11.7	-1.8	-4.7	-5.8

Saint Clair County monthly weather indicators

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Daylight maximum duration (h)	10.0	11.0	12.0	13.0	14.0	14.0	14.0	14.0	13.0	11.0	10.0	9.0
Daylight mean duration (h)	9.8	10.8	12.0	13.2	14.3	14.8	14.5	13.6	12.4	11.2	10.1	9.5
Daylight minimum duration (h)	9.0	10.0	11.0	12.0	13.0	14.0	14.0	13.0	11.0	10.0	9.0	9.0
Sunshine mean duration (h)	5.2	7.4	7.0	10.3	10.8	12.5	11.6	10.1	10.5	7.8	7.9	5.7
Precipitation (mm)	74	62	223	73	136	58	107	126	76	60	18	86
Sunny days	16	17	12	20	17	18	10	16	17	19	23	18
Rainy days	13	11	18	10	14	12	21	15	13	12	7	13
Snow days	2	0	1	0	0	0	0	0	0	0	0	0

Saint Clair County - weather forecast by months

Saint Clair County weather in january Saint Clair County weather in february Saint Clair County weather in march Saint Clair County weather in april Saint Clair County weather in may Saint Clair County weather in june Saint Clair County weather in july Saint Clair County weather in august Saint Clair County weather in september Saint Clair County weather in october Saint Clair County weather in november Saint Clair County weather in december

Best time to visit Saint Clair County:

The best time to visit Saint Clair County during the most sunny months:

June — 12.5(h)
July — 11.6(h)

The largest precipitation sum in Saint Clair County is at

March — 223(mm)

May — 136(mm)

August — 126(mm)

Weather forecast in the closest to Saint Clair County admin centers