Harrisville State Park Beach and Swimming Area.
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This is where Frank counts the monarchs overhead as they migrate south to Mexico in September. The location is at the main pavilion near the beach (far left in picture). You are looking NW where the monarchs come into view overhead. Lake Huron would be behind you. Frank stands at the brown sign that is far right in the picture.
Autumn Migration Harrisville, 2021
Eleven monarchs observed on directional flight on July 26th, 2021. This is very early since the old record was one on August 11th, 2015. I started record keeping in 2010. The average directional flight is August 15th.
The monarchs came in four small waves migrating south down the Lake Huron beach at Harrisville State Park on September 24-27. A total of 244 were counted (169, 54,14, 7). This is low for a migration, but not bad after 2 1/2 days of rain and drizzle with the temperatures in the 50's. Although the weather has been 100% sunshine with the temperatures in the low 60's, no monarchs have been counted on the 28th to the 30th. The low temperature at night has been 47, 41, and 36 degrees F. The first monarchs were seen entering Mexico on September 29th, 2021. They have another 300 miles to go to arrive at the sanctuaries. Will more monarchs be counted around Harrisville in October and November?
October 01 One observed.
October 03 One observed and tagged (ACWM-419).
October 04 One observed.
October 11 One observed.
October 14 Five observed and four tagged (ACWM-420 to 423).
October 15 One observed.
October 18 Two observed.
October 19 Eight observed.
October 20 Two observed.
October 23 Snow flakes fell from 5:07 to 5:14 PM. Temperature was 44F.
October 24 One observed. Light frost at 8 AM. Temperature topped out at 50F.
Total monarchs: 23
Total Autumn Count including the one on November 1st: 527
November 01 One observed and tagged (ACWM-424). Low temperature was 33 degrees. High was 48F.
November 07 Last monarch observed in Michigan at Rockwood. Low temperature was 39. High was 65F.
Eleven monarchs observed on directional flight on July 26th, 2021. This is very early since the old record was one on August 11th, 2015. I started record keeping in 2010. The average directional flight is August 15th.
The monarchs came in four small waves migrating south down the Lake Huron beach at Harrisville State Park on September 24-27. A total of 244 were counted (169, 54,14, 7). This is low for a migration, but not bad after 2 1/2 days of rain and drizzle with the temperatures in the 50's. Although the weather has been 100% sunshine with the temperatures in the low 60's, no monarchs have been counted on the 28th to the 30th. The low temperature at night has been 47, 41, and 36 degrees F. The first monarchs were seen entering Mexico on September 29th, 2021. They have another 300 miles to go to arrive at the sanctuaries. Will more monarchs be counted around Harrisville in October and November?
October 01 One observed.
October 03 One observed and tagged (ACWM-419).
October 04 One observed.
October 11 One observed.
October 14 Five observed and four tagged (ACWM-420 to 423).
October 15 One observed.
October 18 Two observed.
October 19 Eight observed.
October 20 Two observed.
October 23 Snow flakes fell from 5:07 to 5:14 PM. Temperature was 44F.
October 24 One observed. Light frost at 8 AM. Temperature topped out at 50F.
Total monarchs: 23
Total Autumn Count including the one on November 1st: 527
November 01 One observed and tagged (ACWM-424). Low temperature was 33 degrees. High was 48F.
November 07 Last monarch observed in Michigan at Rockwood. Low temperature was 39. High was 65F.
MONARCH BUTTERFLY COUNT SPRING, 2022
Spring counts are conducted April 30th to May 31st. The sightings are listed below for each of these seasons.
Year Number counted Year Number counted
2010 0 2020 8
2011 2 2021 7
2012 6 2022 3
2013 0
2014 1
2015 1
2016 0
2017 1
2018 3
2019 1
Spring counts are conducted April 30th to May 31st. The sightings are listed below for each of these seasons.
Year Number counted Year Number counted
2010 0 2020 8
2011 2 2021 7
2012 6 2022 3
2013 0
2014 1
2015 1
2016 0
2017 1
2018 3
2019 1
MONARCH BUTTERFLY COUNT SUMMER, 2022
Summer counts are conducted June 1st to August 14th. I record monarchs on about 200 acres of habitat in and around Harrisville at least every other day. The sightings are listed below for each of these seasons.
Year Number counted Notes
2010 4 Cool summer. 96 million monarchs in Mexico.
2011 1 Warm summer. 201 million monarchs in Mexico.
2012 1 Drought beginning. 145 million monarchs in Mexico.
2013 4 Drought year. 60 million monarchs in Mexico.
2014 35 Conditions improving. 34 million monarchs in Mexico.
2015 28 Most drought in eastern US ended. 57 million monarchs in Mexico.
2016 6 Cool Spring and very wet summer. 201 million monarchs in Mexico.
2017 60 Very good weather conditions across eastern US. 146 million monarchs in Mexico.
2018 158 Excellent weather throughout the south for egg laying.
124 million monarchs in Mexico.
2019 253 Another excellent weather throughout the southern states.
302 million monarchs in Mexico.
2020 164 Good weather in Mexico. Monarchs leaving one month early. 151 million monarchs in Mexico. Additional note Autumn: monarchs entered Mexico on September 26th, which is five weeks earlier than normal.
2021 610 Good weather in Mexico, but drier conditions from last year. 109 million monarchs in Mexico. A 26% decline from last year.
The monarchs left Mexico on March 5th and entered Texas on March 11th. Note: Some monarchs are leaving Michigan 20 days earlier than normal for Mexico. They began migrating on July 26th. The normal date is usually August 15th. I did not count the monarchs migrating July 26 to August 14 in my summer count.
2022 11 Good weather in Mexico, but even drier than last year. There a are 140 million monarchs in Mexico: 40% higher than last year, and 34% higher than two years ago. Monarchs left Mexico on March 10th and entered Texas on March 15th. First monarch sighted at Shelby Twp near Detroit on May 9th. First monarch sighted in Harrisville was May 13th. It has been a cooler than normal month of May.
FALL MIGRATION 2021
Generally, monarch migration begins with directional flights on August 15th in the Harrisville area, although one was observed high overhead on August 11, 2015. Most migrate in a southwesterly direction on northwest winds. However, a new record was set when 11 monarchs were observed in directional flight on July 26th, 2021. This is the earliest date ever recorded in lower Michigan since record keeping began by wildlife organizations beginning in 1992.
No new records were set for August since record keeping began in 2010. The one hour count still stands at 149 set August 22, 2018. This year it was 9 on August 02. The one day count still stands at 1,016 set August 22, 2018. This year it was 36 on August 02. The two day count still stands at 417 set August 30-31, 2019. This year it was 41 on August 1-2. The seven day count still stands at 470 set August 24-30, 2019. This year it was 46 on August 25-31. And finally, the one month count still stands at 1,524 set in 2018. This year it was 171.
FALL SEPTEMBER MIGRATION 2021
No new records were set since record keeping began in 2010 in and around the town of Harrisville. The one hour count still stands at 336 on September 26, 2019. This year it was 44 on September 24. The one day count still stands at 1,301 on September 26, 2019. This year it was 169 on September 24. The two day count still stands at 1,129 set on September 27-28, 2017. This year it was 233 on September 24-25. The seven day count still stands at 2,843 on September 22-28, 2019. This year it was 257 on September 21-27. Finally, the September count still stands at 3,892 set in 2019. This year it was 332.
FALL OCTOBER MIGRATION 2021
No new records were set since 2010 for October migration in and around the town of Harrisville. The one hour count still stands at 55 set in 2011. This year it was 5 on October 14. The one day count still stands at 286 set in 2011. This year it was 8 on October 19. The the two day count still stands at 497 set on October 6-7, 2019. This year is was 10 on October 19-20. A seven day count still stands at 596 set on October 01-07, 2019. This year it was 18 on October 14-20. The latest high number of monarchs in October still stands at 12 on October 20, 2019. This year it was 8 on October 19. Finally, the record of 645 monarchs that were counted for the month of October, 2019, still stands. This year it was 23.
FALL NOVEMBER MIGRATION 2021
The one hour count stands at 2 from 1:05-1:20 PM on November 04, 2015. The one day count stands at 2 on the same date. The two day count stands at 3 on November 03-04, 2015. The seven day count stands at 3 on November 01-07, 2015. The month of November count stands at 3 set in 2015. And finally, other participants observed one monarch each on November 08, and November 28, 2017 (this could be the latest monarch ever recorded in Michigan). I also observed a monarch on November 02, 2011, November 03, 2011, November 07, 2017, and November 01, 2021. This gives a total of 9 monarchs counted in November since record keeping began in 2010.
SEASON SUMMARY
First monarch observed in Harrisville was on May 21, 2021 at 12:40 PM . Last wild monarch observed in Harrisville was on November 01, 2021. Last reared monarch tagged and released was on October 28th, 2020. None tagged for this year. Total for the year 2021 was 1,144 counted. Total for the year 2020 was 1,263 monarchs counted. From April 30th to October 28th, 2019, monarchs counted came out to 5,283. This record still stands since record keeping began in 2010. The last five years have had over 1,000 monarchs observed. Otherwise, the average had been 556 a year. My 12 year total has reached 16,341 monarchs counted for the Harrisville area!
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