Studies have found that adequate water supply and sanitation â which reduces contact with contaminated surface water â could reduce infection rates by 77 per cent. Trachoma. Trachoma is an eye infection spread mainly through poor hygiene caused by lack of adequate water supplies and unsafe environmental sanitation conditions. About 6 million people are blind today because of trachoma.
Average Weather in December in New York City New York, United States. In New York City, the month of December is characterized by falling daily high temperatures, with daily highs decreasing by 7Â°F, from 49Â°F to 42Â°F over the course of the month, and rarely exceeding 61Â°F or dropping below 30Â°F.
Days of Hot Weather in New York City. Temperatures of 100 degrees Fahrenheit are not normal for New York. The city averages just 12 days a year when the thermometer peaks at 90 Â°F or more. New York City normally has 200 days a year of 60 degrees or higher, including every day from June to September. The city's temperatures typically rise into the 60s for a day or two in each of the winter months.