♦ ASU ♦ School of Geographical Sciences ♦ ASU Climatology ♦

OFFICE OF THE ARIZONA STATE CLIMATOLOGIST Welcome to the web page for the Office of the Arizona State Climatologist. The primary goal of the office is to provide information regarding the state’s climate in support of operational, educational, planning, and research endeavors. Below is an introduction to the office, climate data, and information for Arizona and the southwestern United States, and guidelines for requesting additional information or data. There are many excellent sources for climate information associated with the State of Arizona and the southwestern United States. If you can not find what you are looking for here, we have suggested other sources as promising alternatives.

Weather Information

Climate Information

Monthly State Temperature & Precipitation Update

Drought Information

Other Resources

About the Office

Phoenix Raindays 2005-2008

Rainlog – Arizona Rain Network

Arizona Apr. Climate Summary

**Download Climate Calendars

World Climate Records

Below are Departure from Normal Maps – since January 1^st, 2008, updated 5/16/2008.

Link to Other Climate Maps from Western Region Climate Center

Precipitation (click image to access most recent map) Temperature

Data through 5/15/2008

	Winter 2007-08			Winter 2007-08		Summer-2008
	40^o or lower			32^o or lower		100^o or higher
City	First Day	# Days	First Day		# Days		First Day	#` Days
Phoenix	Dec 15	21	--------		---------		----	---
Tucson	Nov 25	61	Dec 15		18		----	---
Yuma	Dec 14	7	--------		---------		Apr 13	7
Flagstaff (90^o)	Sep 18	229	Sep 18		212		----	---
Prescott (90^o)	Oct 7	179	Nov 21		110		----	---
Winslow (90^o)	Sep 25	199	Oct 7		141		----	---

Last precipitation in Phoenix Feb 22, 2008 – 84 days ago (Trace on May 15^th)

Last precipitation in Tucson Apr 9, 2008 – 39 days ago

Last precipitation in Flagstaff May 13, 2008 – 3 days ago

© 2008 Office of the Arizona State Climatologist

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