Even coins such as the Morgan and Peace Silver Dollars have a little bit of copper (90% silver, 10% copper.) The circulating gold coins have some copper, too (ranging from 8.5% to 10%.) You can also rule out Nickels (which are actually 75% copper!) There is 10% copper in the pre-1965 Dimes, Quarters and Half Dollars, and the Cent, of course, was ...
Average Temperatures in Hanoi, Vietnam. The average annual temperature in Hanoi, Vietnam is fairly hot at 24.1 degrees Celsius (75.4 degrees Fahrenheit). There is a variation of mean monthly temperatures of 13 Â°C (23.4Â°F) which is a low range. The mean diurnal temperature variation/ range is 7.1 Â°C (12.8 Â°F). The hottest month is very hot having a mean temperature of 30 degrees Celsius (86 degrees Fahrenheit). January is the coldest month (very mild) having an average temperature of 17 degrees Celsius (62.6 degrees Fahrenheit). Average Temperatures Table for Hanoi
In the capital Hanoi, situated towards the north of the country, average temperature is 21C in November. Temperatures begin to cool in the following months and the comfortable temperatures and low rainfall make it a great time to visit. Hanoi averages 17C in January, the coolest month of the year.he north of the country is a fair bit cooler than the south and has much more marked seasonal variations. For example average temperature in Hanoi in the north varies form 17C in January to 28C in July and August while Ho Chi Minh City in the south sees monthly averages range between 25C and 30C.