 When reading the graph below, keep in mind that the hottest part of the day tends to be the least humid, so the daily low (brown) traces are more relevant for understanding daytime comfort than the daily high (blue) traces, which typically occur during the night.Applying that observation, the "least humid month" of 2015 was October with an average daily low humidity of 40%, and the "most humid month" was April with an average daily low humidity of 64%.But it is important to keep in mind that humidity does not tell the whole picture and the dew point is often a better measure of how comfortable a person will find a given set of weather conditions.