Asian Turfgrass Climate Charts

This chart contains the climatological normal data of temperature, precipitation, and sunshine hours for 56 world cities. Prompted by discussions with Dr. John Kaminski during the Asian Turfgrass Roadshow 2012, I've made this chart that includes four of the cities that we visited on our tour of Asia. Compared to the charts I've made previously, this one contains a greater range of cities from cool-season areas where C₃ grasses are grown.

At the Sustainable Turfgrass Management in Asia 2012 conference at Thailand, I made a presentation entitled A New Way of Looking at the Weather in which I described the justification for presenting weather data in this format and showed how the bubble charts can be used to make better decisions about grass selection and turfgrass maintenance practices.

Weather has a great impact on the growth of turfgrass. The carbon dioxide uptake that occurs in the photosynthesis of managed turfgrass is influenced by four primary factors: light, temperature, water, and nitrogen. Turfgrass managers are able to modify the plant water status and the leaf nitrogen content, but there is very little that can be done about light or temperature. With charts that show the average temperatures and sunshine hours, these uncontrollable factors and their seasonal influence on turfgrass growth can be easily observed.