Research on Temperature Change in Closed Balcony on Northern Low-temperature Season

The changing of the highest temperature daily,the changing of the lowest temperature daily,the influence of temperature change in the weather,temperature variation daily,influence of weather to temperature daily variation in closed balcony on northern low-temperature season were researched,to explore temperature change rule in closed balcony on northern low-temperature season and provide the basis of plant cultivation in closed balcony in winter.The research results showed that,in closed balcony on northern low-temperature season,the highest temperature daily was 12-25℃generally and the lowest temperature was 8℃.The temperature range was 8-21℃,the temperature was 10-20℃generally from mid December to mid February and it was the fluctuant phase at low temperature.In closed balcony on northern low-temperature season,the lowest temperature daily was 4-20℃ generally and the lowest temperature was1.5-2.0℃.The temperature range was 15-20℃from mid October to early November and it was wave decline.The temperature range was 15-20℃from mid November to early December and it was wave decline.The temperature range was 4-10℃from early December to late December and it was wave decline.The temperature range was 5-10℃ mainly and it was more drastic wave,was 13℃ highest,was 1.5-2.0℃ lowest,from early January to mid March.The temperature range was 15-20℃fundamentally from mid March to early May.The highest temperature daily was higher and the lowest temperature daily was lower and the temperature difference daily was bigger when clear day.The difference was smaller between the highest and lowest temperature daily and the temperature difference daily was smaller when rain and snow.In a day,the time of the lowest temperature was 5:00-7:00,the later the sun rise,the later the lowest temperature arise.The temperature increase gradually at morning.The temperature was highest at 13:00-14:00.The temperature drop faster at p.m..The temperature drop slower at night.The change of temperature was smaller rainy days and was bigger clear days.