 The precipitations occur mainly in the form of rain and, sometimes of hail, being able to be of intense intensity and still accompanied by rays and thunderstorms.The air humidity is relatively high, with monthly averages between 60% and 80%, with an annual average of 71%, and may be below 30%, mainly in the afternoon, during the winter, which contributes to the increase of burned in hills and bushes, mainly in the rural area, as well as for deforestation and the release of pollutants into the atmosphere, further damaging air quality.According to the records of the Agronomic Institute of Campinas, the year with the lowest rainfall was 1944, with 836.5 mm.