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Ottawa, KS
Full City Profile · Kansas · Franklin County County
3.6
/5.0
B+
Good
12,632
Population
1,224/sq mi density
$64,655
Median Income
$31,893 per capita
$165,700
Home Value
$228,428 Zillow
$949
Median Rent
29.7% income on rent
55°F
Avg Temperature
302 sunny days/yr
229
Violent Crime/100K
0 property/100K
B+
Overall
3.6 / 5.0
Good overall score based on economy, affordability, safety and education
A
Economy
4.1 / 5.0
$64,655 median income, 1.4% unemployment
A+
Affordability
5.0 / 5.0
$165,700 home value, $949/mo rent
C
Safety
2.0 / 5.0
229 violent crimes/100K
B
Education
3.2 / 5.0
27.5% bachelor's degree or higher
Ottawa experiences four distinct seasons with an average annual temperature of 55°F (13°C). Winters average 29°F in January while summers reach 78°F in July. The area gets 302 sunny days per year. Annual precipitation totals 39.9 inches. The area receives 9.2 inches of snow annually. Air quality is rated Good with a median AQI of 39.
Temperature
29°F Jan (-2°C)
78°F Jul (26°C)
| Annual Average | 54.5°F |
| 1% above US avg | |
| January Average | 29°F (-2°C) |
| July Average | 78°F (26°C) |
| Sunny Days | 302 days/yr |
Geography
| Elevation | 919 ft (280 m) |
| Area | 9.4 sq mi (24.4 km²) |
| Population Density | 1,224/sq mi |
| Coordinates | 38.6001°N, 95.2628°W |
| Timezone | America/Chicago |
| County | Franklin County County |
| Nearest Airport | Lawrence Regional (LWC) 29 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 39.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Relatively Low |
| Risk Score | 43.7 / 100 |
| Social Vulnerability | 25.4 / 100 |
| Community Resilience | 84.4 / 100 |
Hazard Breakdown
| Tornado | Relatively Moderate |
| Hurricane | No Rating |
| Earthquake | Very Low |
| Wildfire | Very Low |
| Flood | Relatively Low |
| Hail | Relatively Moderate |
| Strong Wind | Relatively Moderate |
| Heat Wave | Relatively Low |
| Winter Weather | Relatively Moderate |
| Lightning | Relatively Moderate |
| Ice Storm | Relatively High |
| Drought | Relatively Low |
| Cold Wave | Relatively Low |
| Landslide | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 29°F (-2°C) | 1.3 in | Coldest |
| February | 34°F (1°C) | 1.2 in | Driest |
| March | 45°F (7°C) | 2.8 in | |
| April | 55°F (13°C) | 3.5 in | |
| May | 65°F (18°C) | 5.1 in | |
| June | 74°F (23°C) | 5.5 in | Wettest |
| July | 78°F (26°C) | 3.5 in | Warmest |
| August | 78°F (25°C) | 3.9 in | |
| September | 69°F (21°C) | 4.4 in | |
| October | 58°F (14°C) | 3.5 in | |
| November | 44°F (7°C) | 2.7 in | |
| December | 33°F (1°C) | 1.7 in |
Ottawa has a seasonal temperature swing of 49°F / from 29°F in January to 78°F in July. Total annual precipitation is 38.9 inches, with June being the wettest month (5.5") and February the driest (1.2").