How to Accurately Measure Snowfall in Your Car

Measuring snowfall accumulation in your car can be challenging due to the vehicle's mobility and the potential for drifting snow. However, with the right approach, you can obtain accurate measurements.

1. Choose an Appropriate Location

Park your car in an open area away from structures, trees, or other obstructions that might influence snow accumulation. Ensure the ground is level to avoid uneven measurements.

2. Use a Snowboard for Consistency

Place a white, flat board (approximately 24 inches by 24 inches) on the ground near your car. This "snowboard" provides a consistent surface for measuring new snowfall and minimizes heat absorption, which can affect snow accumulation. (weather.gov)

3. Measure Snowfall Accumulation

After a snowfall, use a yardstick or snow stick to measure the depth of snow on the snowboard. Take measurements at multiple points to account for any uneven accumulation. Record the greatest accumulation observed. For consistency, measure at the same time each day during a snowfall event. (weather.gov)

4. Record and Report Your Measurements

Document your measurements to the nearest tenth of an inch. If you're participating in citizen science programs or reporting to local weather services, follow their specific guidelines for submitting data. (cocorahs.org)

5. Consider Vehicle-Specific Factors

Be aware that snow accumulation on your car may differ from the surrounding area due to factors like heat from the engine or the vehicle's movement. For more accurate data, consider measuring snow accumulation on the snowboard placed near your car.

By following these steps, you can effectively measure snowfall accumulation in your car, contributing valuable data to weather observations and ensuring accurate personal records.