How to use the pet left in car danger guide
Enter the outside temperature, how long the car will sit, and whether it is in sun or shade. The tool lines your conditions up against the reported cabin-heat case so you can see whether this stop is as harsh as the one on record, or harsher.
Two reported figures drive the comparison. A car parked in direct sun on a clear 71.6 ℉ day reached 116.6 ℉ inside after 60 minutes, and 30 minutes in that same setting has pushed rectal temperature past 106.7 ℉. The normal ceiling for dogs and cats is 102.5 ℉. Compiled as of October 2026.
The tool does not compute cabin temperature at intermediate points such as 10 or 20 minutes. No dependable minute-by-minute curve was available, and showing an interpolated number invites waiting until that time. Open windows and ventilation are not modelled either. This tool is for reference only and does not replace veterinary care. Contact your veterinarian right away if your pet is panting hard, drooling or going limp.
Frequently asked questions
Leaving the windows ajar does not stop the cabin heating up. This tool does not model open windows, and it gives no duration you may leave a pet for.
No dependable minute-by-minute curve was available, which is why only the two reported figures appear. Interpolating a number would invite waiting until that time, so it is left out on purpose.
Shade slows the climb, but at this temperature band shade is not treated as a condition you can rely on. The guidance line follows that rule.