Foster, OK
Full City Profile · Oklahoma · Garvin County County
4.1
/5.0
A
Great
229
Population
7/sq mi density
$71,683
Median Income
$36,648 per capita
$226,900
Home Value
$273,096 Zillow
$900
Median Rent
15.0% income on rent
62°F
Avg Temperature
A
Overall
4.1 / 5.0
Strong
B+
Economy
3.7 / 5.0
$71,683 median income, 3.5% unemployment
A+
Affordability
4.9 / 5.0
$226,900 home value, $900/mo rent
B+
Education
3.7 / 5.0
34.3% bachelor's degree or higher
Foster enjoys a temperate climate with an average annual temperature of 62°F (17°C). Winters average 40°F in January while summers reach 83°F in July. Annual precipitation totals 38.1 inches. The area receives 0.8 inches of snow annually.
Temperature
40°F Jan (4°C)
83°F Jul (28°C)
| Annual Average | 61.5°F |
| 14% above US avg | |
| January Average | 40°F (4°C) |
| July Average | 83°F (28°C) |
Geography
| Elevation | 990 ft (302 m) |
| Area | 34.5 sq mi (89.3 km²) |
| Population Density | 7/sq mi |
| Coordinates | 34.6060°N, 97.4899°W |
| Timezone | America/Chicago |
| County | Garvin County County |
| Nearest Airport | Ada Regional (ADT) 48 miles away |
Precipitation & Snow
Air Quality
Natural Hazard Risk
| Overall Risk | Relatively Low |
| Risk Score | 61.7 / 100 |
| Social Vulnerability | 53.2 / 100 |
| Community Resilience | 30.8 / 100 |
Hazard Breakdown
| Tornado | Relatively Moderate |
| Hurricane | Very Low |
| Earthquake | Very Low |
| Wildfire | Relatively Low |
| Flood | Relatively Low |
| Hail | Relatively Moderate |
| Strong Wind | Relatively Moderate |
| Heat Wave | Relatively Low |
| Winter Weather | Relatively Low |
| Lightning | Relatively Moderate |
| Ice Storm | Relatively High |
| Drought | Relatively Moderate |
| Cold Wave | Relatively Low |
| Landslide | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 40°F (4°C) | 1.7 in | Coldest, Driest |
| February | 44°F (6°C) | 2.0 in | |
| March | 52°F (11°C) | 2.8 in | |
| April | 61°F (16°C) | 3.7 in | |
| May | 70°F (21°C) | 5.3 in | Wettest |
| June | 78°F (26°C) | 5.2 in | |
| July | 83°F (28°C) | 2.9 in | Warmest |
| August | 82°F (28°C) | 2.8 in | |
| September | 74°F (23°C) | 3.9 in | |
| October | 63°F (17°C) | 3.3 in | |
| November | 51°F (11°C) | 2.4 in | |
| December | 42°F (5°C) | 2.2 in |
Foster has a seasonal temperature swing of 43°F / from 40°F in January to 83°F in July. Total annual precipitation is 38.1 inches, with May being the wettest month (5.3") and January the driest (1.7").