Did you know we use the word "condition" and "conditions" to describe the weather . The reason why is that weather is conditional on probability. Probability determines the weather . That is why we can have normal conditions that are in an average range and statistical outliers in either very calm or extraordinarily raging. Weather is incremental we mostly have chronological posting of "conditions" from various weather stations and we chart those incremental changes. Average has it own trend over time but that does not prevent statistical analysis showing extremes much of the time and even conflicting with what we see as normal seasonality. It is amazing I never before linked the idea that weather conditions are using a word that is all about probability.