So in general, regarding perishable foods like meat, most dairy, unshelled eggs and shell eggs (in the US) , cooked casseroles, and so on: if the food (or its perishable components) have been at room temperature for more than two hours, you should discard that food.
This directly effects how comfortable it will feel outside. Many times, relative humidity can be misleading. For example, a temperature of 30 and a dew point of 30 will give you a relative humidity of 100%, but a temperature of 80 and a dew point of 60 produces a relative humidity of 50%.
Ideal summer and winter indoor humidity vary; in the winter, ideal humidity is in the 25 to 40 percent range; in the summer, less than 60 percent humidity is ideal. In the winter, air in the home may feel dry, especially if the humidity outdoors is low.If your skin feels itchy and you often are thirsty, the air may be too dry. A digital hygrometer measures indoor humidity. If the humidity is lower than 40 percent, a humidifier adds a bit of moisture to the room.deal summer and winter indoor humidity vary; in the winter, ideal humidity is in the 25 to 40 percent range; in the summer, less than 60 percent humidity is ideal. In the winter, air in the home may feel dry, especially if the humidity outdoors is low.