Columbia residents are no strangers to hot, humid summer days. As climate change continues to crank up the heat around the country, the city will face higher and higher average temperatures. For those living in urban, developed areas, – like many Columbia residents do – temperature increases can become dangerous, especially when compounded with the urban heat island effect.
The urban heat island effect is defined by the EPA as: “urbanized areas that experience higher temperatures than outlying areas. Structures such as buildings, roads, and other infrastructure absorb and re-emit the sun’s heat more than natural landscapes such as forests and water bodies. Urban areas, where these structures are highly concentrated and greenery is limited, become “islands” of higher temperatures relative to outlying areas. Daytime temperatures in urban areas are about 1–7°F higher than temperatures in outlying areas and nighttime temperatures are about 2-5°F higher.
To combat rising heat and get a better picture of temperatures in Columbia, the City and a host of volunteers embarked on a one-day community science project in summer 2022 to collect heat index data across Columbia. Volunteers drove a 1-hour pre-determined route with a specialized sensor to collect heat index and location data along the way.
The data gathered from the “Show Me the Heat” project was used to create heat maps and begin planning efforts to shore up the city’s heat resilience. Explore the Show Me the Heat StoryMap on this dashboard to walk through the project’s timeline and learn more about the results.
A brand new feature on the Show Me the Heat dashboard page is the “Show Me the Relief” map tool. Use this interactive map to easily find free and low-cost places to cool off from the hot summer sun, including:
- Public swimming
- Water fountains
- Splash parks
- Cooling centers
Use the filter to search by relief type, then use either the list or the map to select a location and discover hours, directions, and more.
Staying cool during the summer is crucial for preventing heat-related illnesses such as heat exhaustion and heat stroke, which can be life-threatening. Proper cooling helps maintain your body’s natural temperature regulation, ensuring you stay comfortable and avoid dehydration. Additionally, staying cool enhances overall well-being, allowing you to enjoy summer activities safely and effectively!
- Stay Hydrated: Drink water regularly, even if you don't feel thirsty. Avoid drinks with caffeine or alcohol, as they can contribute to dehydration. Make sure to hydrate more if you’re engaging in physical activities or spending extended time outdoors.
- Avoid Overexertion: Limit strenuous activities during the hottest parts of the day. If you need to exercise or do heavy work outside, try to do it early in the morning or late in the evening when temperatures are cooler. Take frequent breaks in a shaded or air-conditioned area.
- Wear Appropriate Clothing: Choose lightweight, light-colored, and loose-fitting clothing. Dark colors absorb more heat, so light colors help reflect it away. Wear a wide-brimmed hat and sunglasses to protect yourself from direct sun exposure.
- Recognize Heat-Related Illnesses: Be aware of the signs of heat exhaustion and heat stroke. Symptoms of heat exhaustion include heavy sweating, weakness, dizziness, nausea, and headache. Heat stroke is more severe and can include confusion, loss of consciousness, and a body temperature above 104°F (40°C). If you or someone else shows these symptoms, get to a cooler place, hydrate, and seek medical attention immediately.