Saint Croix Island sits in one of Maine's quietest corners for natural hazards — Washington County recorded just one notable weather incident in the dataset, a single hail event, with zero injuries or deaths. That makes the more relevant safety consideration the surrounding region's violent crime rate of 104.2 per 100,000 residents in 2023, which runs modestly above the national average and is worth keeping in mind for a site accessed by boat on a remote stretch of the St. Croix River.
Because the island is reachable only by water, plan your visit around tidal schedules and carry a fully charged VHF marine radio or satellite communicator — cell service along this remote stretch of the Maine-Canada border is unreliable. Leave a detailed float plan with someone onshore, including your launch point and expected return time, so a late departure doesn't go unnoticed.
Top recorded hazards in Washington County
County dataFrom NOAA Storm Events (2024). Counts of recorded incidents — not all occurred at this park.
- Hail 1
Gear keyed to this park's risks
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About Saint Croix Island International Historic Site
The winter of 1604-1605 on Saint Croix Island was a cruel one for Pierre Dugua's French expedition. Iced in by freezing temperatures and cut off from fresh water and game, 35 of 79 men died. As spring arrived and native people traded game for bread, the health of those remaining improved. Although the expedition moved on by summer, the beginning of French presence in North America had begun.
Weather
Located in Maine, Saint Croix Island experiences all four seasons. Summer temperatures range from 50-80F (10-27C). Fall temperatures range from 25-70F (-4-21C). Typically the first is in frost mid-October and first snowfall begins in November and can continue through April with an average accumulation of 67 inches (170 cm). Winter temperatures range from 5-30F (-15 - -1C). Spring temperatures range from 20-60F (-6-16C).