Rhodochrosite: Specimen of rhodochrosite from the Sunnyside Mine, San Juan County, Colorado. Rhodochrosite is a manganese carbonate mineral (MnCO3) that is used as an ore of manganese and is also cut as a gemstone.
Climate for Juneau, Alaska. Juneau's coldest month is January when the average temperature overnight is 20.7Â°F. In July, the warmest month, the average day time temperature rises to 64.3Â°F. The driest month in Juneau is April with 2.96 inches of precipitation, and with 8.30 inches October is the wettest month.
Earlier records are either unavailable or unreliable. Juneau, Alaska has a mild humid temperate climate with warm summers and no dry season. The area within 25 mi of this station is covered by tundra (37%), oceans and seas (34%), and forests (28%).rom the start to the end of the month, the length of the day decreases by 1:37 hours, implying an average day-over-day decrease of 3.1 minutes. The shortest day of the month is July 31 with 16:31 hours of daylight; the longest day is July 1 with 18:09 hours of daylight.