What Story Does This Graph Tell?

About This Graph
We made this graph by counting the number of monarchs that were reported to Journey North each week. We started when the migration began in March and counted sightings every week until June 6th.

Did You Know?
The dates on our migration map correspond with the dates on this graph. Look at the migration map and this graph together and you can see where the monarchs were sighted each week.

  • Tell the story of spring monarch butterfly migration using information from this graph. What happened during the migration from March until June?
  • What factors do you think caused the number of weekly sightings to change the way this graph shows?


  • There were 89 monarchs sighted during the week ending May 29th. Why do you think the number of sightings surged that week?