♦ 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

*New* 2008 MONSOON PAGE

Phoenix Raindays 2005-2008

Rainlog – Arizona Rain Network

Arizona July Climate Summary

**Download Climate Calendars

World Climate Records

Below are Departure from Normal Maps – since January 1^st, 2008, updated 9/5/2008.

Link to Other Climate Maps from Western Region Climate Center

Precipitation (click image to access most recent map) Temperature

Data through 9/4/2008

	Winter 2008-09					Summer-2008
	40^o or lower			32^o or lower		100^o or higher			110^o or higher
City	First Day	# Days	First Day		# Days		First Day	#` Days	First Day	#` Days
Phoenix							May 18	87	May 19	22
Tucson							May 19	46	May 21	1
Yuma							Apr 14	89	May 18	19
Flagstaff (90^o / 100^o)							----	---	----	---
Prescott (90^o / 100^o)							May 19	52	----	---
Winslow (90^o / 100^o)							May 18	67	Jun 15	7

Last measurable precipitation in Phoenix August 31, 2008 – 5 days ago

Last measurable precipitation in Tucson August 31, 2008 – 5 days ago

Last measurable precipitation in Flagstaff August 31, 2008 – 5 days ago

The first reports of nighttime low temperatures of 32^oF occurred on Sept. 4, 2008 at Fort Valley and Bellemont near Flagstaff.

© 2008 Office of the Arizona State Climatologist

You are visitor #