Mr. Griffith's company estimates that the Denver seeding may have brought an increase of 14 to 17 percent, calculated by comparing precipitation data.

He co-developed methods to correct biases in gauge-measured precipitation data for wind and temperature effects, with direct applicability in climate change, hydrology and environmental impact studies.

Map of stream conditions and links to precipitation data, drought statistics, and information on floods and droughts in Illinois.

He said that he had used precipitation data because too many scientists had concentrated on temperature records which, in Soon's opinion, are not the only measures of climate.

Since radiation is known to travel in the atmosphere - precipitation data collected in several states have shown elevated levels of radiation in recent precipitation events.

The nearby table shows applicable temperature and precipitation data by month.

Some countries will supplement the paid weather observer with a network of volunteers to obtain precipitation data (and other types of weather) for sparsely populated areas.

Tampa's precipitation data falls near the median for the area.

As of June 2010, the number of stations providing data involving temperature is on the order of 1500, and nearly 3000 stations contribute precipitation data.

The analysis is based on 100 years of daily precipitation data in India.