Hurricane season in the United States officially runs from June 1st until November 30th, 2025. Since satellite surveillance began in 1966, the arrival of the season’s first hurricane normally occurs by June 20th, on average.
There has not been a storm-free May and June since 2014. Does the lack of tropical depressions or tropical storms observed so far in June indicate a slower-than-usual season? Possibly. In 2014, there were only six hurricanes.
June is historically the most active month of the season, with 22 occurrences since 1966. Compare that to the 10 and 12 that May and July have produced since that time, respectively, and you’ll understand why this is a significant indicator of a slower-than-usual season.
Online entertainment sportsbook sites have presented hurricane betting lines that project some storm-related outcomes for 2025. According to the latest probabilities, the over/under for hurricanes in 2025 is set at eight.
Total Hurricanes Declared by the National Weather Service In 2025?
- Over 8 Hurricanes -120
- Under 8 Hurricanes -120
Rationale for the slow season includes cooler-than-usual ocean temperatures, stable air that makes it difficult for thunderstorms to form, and above-average surface pressure.
There were eleven hurricanes spotted in 2024, with two forming before the end of June. Alberto became a tropical storm on June 19th, and Beryl became a Category 4 hurricane on June 30th.
Any hurricane that is Category 3 or higher is considered to be “major.” This status requires sustained winds to measure between 111 and 129 miles per hour.
Entertainment prop bets are currently projecting at least four major hurricanes in 2025, one short of the five recorded in 2024.
Total Major Hurricanes Declared “Major” by the National Weather Service in 2025
- Over 4 Major Hurricanes -120
- Under 4 Major Hurricanes -120
In 2024, there were eighteen named storms by the National Weather Service. If the following prop bet is accurate, there will be at least sixteen named storms that pop up before November 30, 2025.
Total Named Storms Declared by the National Weather Service In 2025?
- Over 16 Named Storms -120
- Under 16 Named Storms -120
Each of these prop bets features moneyline odds for every outcome that are identically set at -120. This means that both the over and the under have an equal chance of happening, and you’ll have to wager $1.20 to net $1 in gains.
We believe that online sportsbooks are not factoring in the dry June enough, and believe that the under is the smart bet across the board, save for the prop for major hurricanes, although the current climate will offer plenty of resistance toward the development of high wind speeds.
Sources:
- BetUS Sportsbook (review)
- The Weather Channel
