Storm history › East Pacific › 2021 season
Tropical Storm Guillermo (2021)
Guillermo was a tropical storm of the 2021 East Pacific season. It was tracked from July 17, 2021 to July 21, 2021, about 4 days, and covered 1,476 miles.
At its peak it had winds of 60 mph (95 km/h) and a lowest pressure of 999 mb.
- Peak wind
- 60 mph
- Lowest pressure
- 999 mb
- Strongest
- Tropical storm
- Landfalls
- None recorded
- Duration
- 4 days
- Track length
- 1,476 mi
- Energy (ACE)
- 1.6
DepressionTropical stormCat 1Cat 2Cat 3Cat 4Cat 5
How it compares
- Peak winds: 761st highest of 1,371 East Pacific storms on record, tied with Tropical Storm Alvin (2025), Tropical Storm Raymond (2025), Tropical Storm Bud (2024) and 63 more.
- Lowest pressure: 573rd lowest of 808 East Pacific storms with a recorded pressure, tied with Tropical Storm Alvin (2025), Tropical Storm Javier (2022), Tropical Storm Roslyn (2016) and 14 more.
- Energy: 2% of the 2021 East Pacific season's ACE.