Temperatures for the year as a whole are slightly cooler than most other low-elevation towns in the region, especially at night due to air drainage off the surrounding mountains.
12.
Its official weather station ( which closed in 1976 ) was located in a frost hollow, but most residential areas have good air drainage and do not see temperatures far below.
13.
The high plains are dominated by grasslands, herbfields, and heath communities which are widespread in areas where cold air drainage limits woody plant growth, with sphagnum bogs and fens in permanently wet areas.
14.
For example, he said, " the weather at the site may be affected by cold air drainage or other unexpected thermal effects, which are often a function of elevation and local topography ."
15.
Most of the vineyards are planted on benches above the valley floor; on varying degrees of slope that assist with air drainage, improves frost protection and increases the amount of sun the vines receive.
16.
Unusually, this temperature was during a windy and snowy cold spell ( mid-January 1987 ), rather than a cold clear night cold air drainage is arrested due to the vast urban area surrounding the city.
