In November 2003 the islands experienced record breaking rainfall. St. Thomas experienced 18.39 inches of rain and St. John 18.91 inches. St. Croixâs highest rainfall was in September 1979 with an amazing 21.39 inches. Droughts are a larger problem because the islands are dependent on rain as a source of water.ainy months does not mean that there is continuous rainfall every day all month long, in fact most daily rainfall reports are below .10 inches. Rain showers are often short and typically occur early in the morning or at night. On a truly rainy day, it will rain off and on for the entire day.
1 Onchocerciasis is a parasitic disease that may cause blindness. 2  It occurs mainly in sub-Saharan Africa and a few isolated areas in the Americas (Brazil, Colombia, Guatemala, Mexico, and Venezuela) and is transmitted by blackfly bites.
Onchocerciasis, also known as river blindness and Robles disease, is a disease caused by infection with the parasitic worm Onchocerca volvulus. Symptoms include severe itching, bumps under the skin, and blindness. It is the second most common cause of blindness due to infection, after trachoma. The parasite worm is spread by the bites of a black fly of the Simulium type.