The average annual rainfall is 1424.5 mm and the driest month in August, when there is only 22.9 mm. In January, the rainiest month, the average is 280.3 mm. In recent years, however, the hot, dry days during the winter have been increasingly frequent, often surpassing 30 °C, especially between July and September. In August 2010, for example, the rainfall in Campinas was only 0 mm. During the dry season and long dry spells in the middle of the rainy season are also common records of fires in the hills and thickets, especially in rural areas of the city, which contributes to deforestation and the release of pollutants into the atmosphere, further worsening air quality. The lowest temperature recorded in the city was −1.5 °C on June 25, 1918. The highest temperature was 39.0 °C, observed on 17 November 1985. The highest cumulative rainfall recorded in 24 hours in the city between June 1988 and October 2008 was 143.4 mm in 25 days May 2005. Between 1890 and 2004 there were 41 occurrences of frost in Campinas. The most recent was on July 18, 2000, when the minimum temperature reached 2.2 °C. There are also occasional episodes of strong winds, with gusts exceeding 100 km / h, and training records were made in the city day May 4, 2001 and March 9, 2008.
the average annual rainfall is 14245 mm and the driest month in august when there is only 229 mm in january the rainiest month the average is 2803 mm in recent years however the hot dry days during the winter have been increasingly frequent often surpassing 30 °c especially between july and september in august 2010 for example the rainfall in campinas was only 0 mm during the dry season and long dry spells in the middle of the rainy season are also common records of fires in the hills and thickets especially in rural areas of the city which contributes to deforestation and the release of pollutants into the atmosphere further worsening air quality the lowest temperature recorded in the city was −15 °c on june 25 1918 the highest temperature was 390 °c observed on 17 november 1985 the highest cumulative rainfall recorded in 24 hours in the city between june 1988 and october 2008 was 1434 mm in 25 days may 2005 between 1890 and 2004 there were 41 occurrences of frost in campinas the most recent was on july 18 2000 when the minimum temperature reached 22 °c there are also occasional episodes of strong winds with gusts exceeding 100 km / h and training records were made in the city day may 4 2001 and march 9 2008