1. Climate Lauren, Hayley, Katherine, Hunter

2. Climate Facts On average, the warmest/sunniest month is July with avg. maximum temp. of 85.2 F The highest recorded temperature was 115°F in 1950. January is the average coldest month with avg. minimum temp of 39.3 The lowest recorded temperature was 18°F in 1990. The maximum average precipitation occurs in January. http://www.weather.com/weather/wxclimatology/monthly/94506

3. Danville, CA Climate is warm during summer when temperatures- 70's and cold during winter when temperatures- 40's. Temperature variations between night and day=moderate during summer there is average difference of 26 F and an average difference of 16 F in winter Winter months tend to be wetter than summer months. http://www.idcide.com/weather/ca/danville.htm

4. Danville Average Temperatures January is usually the coolest month and July is usually the warmest. January high = 56 F January low = 39 F July high = 85 F July low = 59 F Daily high is higher than U.S. avg except for summer months Daily low is lower than U.S. avg except for winter months http://www.city-data.com/city/Danville-California.html

5. Danville Average Precipitation Over past 47 years: Average temp = 57 F Average high temp = 69 F Average low temp = 48 F Average precipitation = 24.1 in Average snowfall = 1.6 in January is wettest month with average rainfall of 4.76 inches Danville avg of precipitation is low compared to rest of U.S. in summer months and above average in January, February and March http://www.clrsearch.com/Danville_Demographics/CA/94526/Weather_Pollution_and_Natural_Disaster_Risk_Ind exes

6. Pollution http://www.clrsearch.com/Danville_Demographics/CA/Weather_Pollution_and_Natural_Disaster_Risk_Indexes

7. Air Contamination Climate has an affect on the quality of our air. Studies have shown that an increase in hot days, increases the level of ozone in our region. The three main air pollutants that cause health problems in the bay area are: 1. Ozone- Also known as "smog" common in our daily air. 2.Particular Matter-Tiny particles released into the air, that penetrate deep into our lungs. 3.Toxic Air Contaminants- cause serious health issues even in low concentration. These factors can affect the people, through our health and by affecting the geography and economy. By increasing health issues, it requires more money for medical attention, leading to more poverty. http://www.sparetheair.org/ http://www.ca-ilg.org/node/3226

8. Air Pollution in the Bay Area Darker Areas: High levels of air pollutants, Lighter Areas: Low Levels of air Pollutants,

9. What Does This Mean? Summer is warm, but can still be chilly Winter is usually rainy and always cold If you look at the pollution map you can see that where there are more people, there is more pollution The precipitation can effect the pollutants in the air and the economy of that day based on what people decide to do that day The climate can also effect the tourism of the area. For example, there are more tourist in the summer than in the winter because there is nicer weather The moderate climate in Danville and in California attracts people to come here to visit or to live.

10. Bibliography http://www.sparetheair.org/ http://www.ca-ilg.org/node/3226 http://www.clrsearch.com/Danville_Demographics/CA/94526/Weather_Po llution_and_Natural_Disaster_Risk_Indexeshttp://www.clrsearch.com/Danville_Demographics/CA/94526/Weather_Po llution_and_Natural_Disaster_Risk_Indexes http://www.city-data.com/city/Danville-California.html http://www.weather.com/weather/wxclimatology/monthly/94506