Plainfield (IN) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Plainfield.
Climate overview of Plainfield
Plainfield, Indiana, United States of America, experiences significant temperature variation throughout the year. Summers bring daytime highs of 29°C (84°F) in August, while winters cool to 2°C (36°F) in January.
The city has a wet climate, receiving around 1202 mm (47 in) of rain/snowfall per year. Despite the high annual total, it has warm summers and cold winters. June is the wettest month. The most sunshine falls in July, with an average of 9.9 hours of daily sunshine.
Plainfield Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Plainfield - and find the best time to visit.
Monthly Temperature in Plainfield
Depending on the time of the year, temperatures range from comfortable to chilly in Plainfield. On average, daytime temperatures range from a comfortable 29°C (84°F) in August to a chilly 2°C (36°F) in January.
Nighttime temperatures range from 19°C (66°F) in August to -7°C (19°F) in January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Plainfield
Plainfield has a relatively rain/snowy climate with high precipitation levels, averaging 1202 mm (47 in) of rain/snowfall annually. The amount of precipitation varies moderately throughout the year. The wettest month, June, sees around 146 mm (5.7 in) of rainfall, perfect for those who enjoy a bit of rain now and then. The driest month, January, still receives a respectable 70 mm (2.8 in) of snow/rainfall. For more details, please visit our Plainfield Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Sunshine Hours in Plainfield
In Plainfield, summer days are longer and more sunny, with daily sunshine hours peaking at 9.9 hours in July. As the darker season arrives, the brightness of the sun becomes less. December sees a soft sun for only 3.5 hours per average day.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Daily percentage of sunshine
Humidity in Plainfield by Month
The relative humidity is high throughout the year in Plainfield.
The city experiences its highest humidity in December, reaching 78%. In April, the humidity drops to its lowest level at 66%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Best Time to Visit Plainfield
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: August and September
- Warmest weather: June, July and August
- Most sunshine: June and July
- Seasonal pattern: Warm summers and cold winters
- Coldest conditions: January, with freezing nights around -7°C (19°F).
Frequently asked questions about the climate in Plainfield
What is the best time to visit Plainfield?
August and September typically offer the most optimal weather in Plainfield. In contrast, January, February, March and December tend to have less optimal conditions. Plainfield has warm summers and cold winters.
What temperatures can I expect in Plainfield?
Daytime highs range from 2°C (36°F) in January to 29°C (84°F) in August. Nighttime lows range from -7°C (19°F) to 19°C (66°F). Temperatures vary considerably through the year.
How much rain does Plainfield get?
Annual rainfall is around 1202 mm (47 in). June is the wettest month with 146 mm (5.7 in), while January is the driest with 70 mm (2.8 in).
How sunny is Plainfield?
Plainfield receives around 2,470 hours of sunshine per year. July is the sunniest month with 297 hours, while December is the cloudiest with just 105 hours. Overall, Plainfield enjoys abundant sunshine.
Plainfield 3-Day Forecast
Plainfield on the map
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Popular this month
Where to go in August - average daytime high across popular destinations.
Kissimmee
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24°C (75°F) San Francisco22°C (72°F) 
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