The leading Groundhog Day data source

Casimir’s Predictions

Concord Casimir has made 6 predictions since 2018.

  • 3 predictions (50%) of six more weeks of winter
  • 3 predictions (50%) of early spring

All predictions

Year Prediction
2023 Early spring
2022 Early spring
2021 More winter
2020 More winter
2019 Early spring
2018 More winter