The monsoon season officially starts on June 15, but the actual arrival of storms varies from year to year. By mid-summer the monsoons start, bringing higher humidity, cloudy skies, and frequent thunderstorms. Early summer is dry: low humidity and clear skies. Summer has daytime high temperatures between 98 and 102 ☏ (37 and 39 ☌) and low temperatures between 71 and 77 ☏ (22 and 25 ☌). If you're familiar with Phoenix weather, Tucson is slightly cooler and slightly wetter due to elevation and surrounding mountain ranges. Fall and spring tend to be sunny and dry. Tucson has a hot desert climate with a long, hot summer and a mild winter. Tucson is still a crossroads, with European, Native American, Mexican, and Asian cultures bumping into one another, in sometimes conflicting and sometimes compatible – but always interesting – ways. In 1912, Arizona became the 48th state to enter the union. In 1863, Arizona became a US territory, and by 1880, its population was around 8,000. In 1821, Tucson became part of the new country of Mexico, and in 1853 it became part of the United States as a result of the Gadsden Purchase. At that time, it was the northernmost Spanish outpost in the New World. It wasn't until 1775 that the Presidio of Tucson was created by Don Hugo O'Connor.

Over the next 100 years, other missions were established in the area, but European presence was minimal. In 1699, Father Eusebio Kino, S.J., established the Mission San Xavier del Bac, southwest of present-day Tucson.

Between 200 CE and 1450 ACE, the Hohokam culture dominated the area – the Pima and Tohono O'Odham peoples that still occupy the area are descendants of the Hohokam. Tucson's history is ancient, with evidence of human occupation stretching back 10,000 years. This made it an important travel route, an agricultural center, and a communications nexus. Water was, until the onset of a severe drought in the late 1990s, relatively plentiful in Tucson, in spite of its location in the middle of a desert. Although with half a million residents it is smaller than the capital city, its cultural life is just as vibrant. It is at a higher elevation than nearby Phoenix and is correspondingly cooler. Tucson ( TOO-sawn), also known as the 'Old Pueblo', is the second-largest city in the state of Arizona and the county seat of Pima County in the Sonoran Desert. Please plunge forward and help improve it further before it hits the main page. We may have failed to notice some minor glitches in the article. Tucson has been nominated for featuring on the main page as Destination of the Month.

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