Cricket Chirp Thermometer

Calculate temperature using cricket chirps based on Dolbear's Law - a fun way to estimate outdoor temperature!

Chirp Count

Count chirps for 15 seconds and multiply by 4, or count for 1 minute

How to Count Chirps

  1. 1. Find a cricket (usually active at night)
  2. 2. Start counting when you hear chirping
  3. 3. Count for exactly 15 seconds
  4. 4. Multiply by 4 for chirps per minute

Results

Enter chirp count to calculate temperature

About Dolbear's Law

The Formula

  • • T(°F) = 50 + (N - 40) / 4
  • • T(°C) = 10 + (N - 40) / 7
  • • N = chirps per minute
  • • Works best between 55-100°F

Accuracy & Limitations

  • • ±2-3°F accuracy typically
  • • Works best with field crickets
  • • Temperature affects metabolism
  • • Fun educational tool