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Plainfield, IN
Full City Profile · Indiana · Hendricks County County
3.6
/5.0
B+
Good
35,783
Population
1,329/sq mi density
$85,074
Median Income
$40,108 per capita
$263,900
Home Value
$327,666 Zillow
$1,313
Median Rent
25.3% income on rent
53°F
Avg Temperature
293 sunny days/yr
142
Violent Crime/100K
1,795 property/100K
B+
Overall
3.6 / 5.0
Good overall score based on economy, affordability, safety and education
A+
Economy
4.7 / 5.0
$85,074 median income, 1.8% unemployment
A+
Affordability
4.9 / 5.0
$263,900 home value, $1,313/mo rent
F
Safety
1.0 / 5.0
142 violent crimes/100K
B+
Education
3.7 / 5.0
33.7% bachelor's degree or higher
Plainfield experiences four distinct seasons with an average annual temperature of 53°F (12°C). Winters average 28°F in January while summers reach 76°F in July. The area gets 293 sunny days per year. Annual precipitation totals 45.8 inches. Air quality is rated Good with a median AQI of 41.
Temperature
28°F Jan (-2°C)
76°F Jul (24°C)
| Annual Average | 53.3°F |
| 1% below US avg | |
| January Average | 28°F (-2°C) |
| July Average | 76°F (24°C) |
| Sunny Days | 293 days/yr |
Geography
| Elevation | 741 ft (226 m) |
| Area | 22.4 sq mi (58.0 km²) |
| Population Density | 1,329/sq mi |
| Coordinates | 39.6932°N, 86.3720°W |
| Timezone | America/Indiana/Indianapolis |
| County | Hendricks County County |
| Nearest Airport | Indianapolis International (IND) 4 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 41.0 |
| Rating | Good |
Air Pollutants (EPA 2023)
| Ozone (O₃) | 0.0457 ppm |
Natural Hazard Risk
| Overall Risk | Relatively Low |
| Risk Score | 76.8 / 100 |
| Social Vulnerability | 10.6 / 100 |
| Community Resilience | 91.5 / 100 |
Hazard Breakdown
| Tornado | Relatively Moderate |
| Hurricane | Very Low |
| Earthquake | Relatively Low |
| Wildfire | Very Low |
| Flood | Relatively Moderate |
| Hail | Relatively Moderate |
| Strong Wind | Relatively Moderate |
| Heat Wave | Relatively Low |
| Winter Weather | Relatively High |
| Lightning | Relatively Moderate |
| Ice Storm | Relatively Low |
| Drought | Relatively Low |
| Cold Wave | Relatively Moderate |
| Landslide | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 28°F (-2°C) | 2.3 in | Coldest, Driest |
| February | 30°F (-1°C) | 2.4 in | |
| March | 40°F (5°C) | 3.4 in | |
| April | 51°F (11°C) | 3.8 in | |
| May | 62°F (16°C) | 4.4 in | |
| June | 71°F (21°C) | 3.9 in | |
| July | 76°F (24°C) | 4.5 in | Warmest, Wettest |
| August | 73°F (23°C) | 3.8 in | |
| September | 66°F (19°C) | 3.0 in | |
| October | 54°F (12°C) | 2.9 in | |
| November | 42°F (6°C) | 3.6 in | |
| December | 31°F (-0°C) | 3.1 in |
Plainfield has a seasonal temperature swing of 48°F / from 28°F in January to 76°F in July. Total annual precipitation is 41.1 inches, with July being the wettest month (4.5") and January the driest (2.3").