For rainfall in Cancun there are monthly totals of the number of days with wet weather and for the amount of rain it receives. Besides these averages, there are also data on how much a month's precipitation can vary from year to year. The averages for temperature and rainfall are from weather data collected during 1981 to 2010.
COMMENTS () | PRINT. If you're a first-time mom, you're probably anxious for your baby to start crawling (if this is your second child, the thought of babyproofing your older child's toys probably fills you with dread!). Some babies start crawling at about six months, some use unique methods to get around, and some never crawl at all!
Now, what we're really saying is that 50% of all babies have fully mastered all the skills needed to crawl by about 7 months. What this also means is that any baby taking longer than 7 months to crawl, is still learning other basic skills or becoming physically stronger.bviously there are 2 answers to this question. Firstly, about 50% of all infants can crawl at 7 months; 75% can do so at 10 months and 90% of all infants have mastered it at 11 months.