Average Temperatures for Philadelphia. Philadelphia's coldest month is January when the average temperature overnight is 25.5Â°F. In July, the warmest month, the average day time temperature rises to 85.5Â°F.The driest month in Philadelphia is February with 2.74 inches of precipitation, and with 4.39 inches July is the wettest month.n July, the warmest month, the average day time temperature rises to 85.5Â°F. The driest month in Philadelphia is February with 2.74 inches of precipitation, and with 4.39 inches July is the wettest month.
Quartile. One of the four divisions of observations which have been grouped into four equal-sized sets based on their statistical rank. The quartile including the top statistically ranked members is called the first quartile and denoted. The other quartiles are similarly denoted, , and. For data points with of the form (for, 1, ...), the hinges are identical to the first and third quartiles. The following table summarizes a number of common methods for computing the position of the first and third quartiles from a sample size (P. Stikker, pers.
In descriptive statistics, the quartiles of a ranked set of data values are the three points that divide the data set into four equal groups, each group comprising a quarter of the data.A quartile is a type of quantile.The first quartile (Q 1) is defined as the middle number between the smallest number and the median of the data set. The second quartile (Q 2) is the median of the data. The third quartile (Q 3) is the middle value between the median and the highest value of the data set.he first quartile (Q 1) is defined as the middle number between the smallest number and the median of the data set.