Rusting of steel also is greater at humidity levels above 50%. If the basement is cooler than outside temperature, and that is virtually certain in the Summer, the relative humidity in the basement will be higher than outside.usting of steel also is greater at humidity levels above 50%. If the basement is cooler than outside temperature, and that is virtually certain in the Summer, the relative humidity in the basement will be higher than outside.
Los Angeles: Annual Weather Averages. July is the hottest month in Los Angeles with an average temperature of 22Â°C (72Â°F) and the coldest is January at 13Â°C (55Â°F) with the most daily sunshine hours at 13 in August. The wettest month is January with an average of 79mm of rain.
Los Angeles is located near a large body of water (e.g., ocean, sea, or large lake). This section reports on the wide-area average surface temperature of that water. The average surface water temperature in Los Angeles is gradually decreasing during December, falling by 2Â°F, from 61Â°F to 59Â°F, over the course of the month.