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.
December is one of the coolest months in Los Angeles and is also very wet. The average daily temperature still reaches a high of 19Â°C (that's 66Â°F) but can reach as low as a rather chilly 8Â°C (about 46Â°F). As with November, the amount of average daily sunshine is about 8 hours a day.