Some keywords sell all year, others explode for six weeks and vanish. The Keyword Seasonality Analyzer reads twelve months of search volume and tells you which kind you are dealing with, before you build a content calendar around the wrong assumption.
Enter your keyword and its monthly search volumes from any keyword tool. The analyzer finds the peak and quietest months, calculates a seasonality index, classifies the keyword, and works out when to publish so the page is ready before demand arrives.
As a rule, publish two to three months before the peak: Google needs time to crawl, index and trust a page before the searches start.