Best year time to visit Mercer County

General weather information about Mercer County

Average annual temperature is 13.4 °C

Absolute maximum temperature: 35.2 °C

Absolute minimum temperature: -13.2 °C

Number of sunny days: 182 days

Number of rainy days: 178 days

Number of snow days: 5 days

* Weather data for Mercer County 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)	18.1	18.4	17.0	30.1	30.0	35.2	34.7	31.9	34.7	28.1	20.6	15.8
Average daytime temperature (°C)	9.1	9.4	11.3	19.6	22.8	27.4	30.9	28.7	25.0	20.2	11.9	9.5
Average temperature (°C)	5.2	4.2	5.6	13.3	16.1	20.7	25.0	23.3	20.0	14.8	6.8	5.3
Average night temperature (°C)	1.8	-0.3	0.8	8.2	9.8	15.2	20.3	18.9	15.9	10.5	2.5	1.8
Absolute minimum temperature (°C)	-3.8	-13.2	-4.2	0.6	4.4	10.1	16.8	15.0	10.0	5.1	-4.5	-5.1

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

The largest precipitation sum in Mercer County is at

August — 137(mm)

September — 198(mm)

December — 175(mm)

When is the best time to visit Mercer County?

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

What is the weather like in Mercer County?

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

How many sunny days does Mercer County have?

The monthly weather statistics above show sunshine and rainfall patterns for Mercer County throughout the year.