Back to home Back to home Electric |  Water Back to home Residential |  Business Back to home Residential |  Business & Municipal

SRP^® - Delivering More Than Power

Weather report

Please use the weather information below to better understand fluctuations in your heating and cooling costs.

The following report uses data collected at Sky Harbor International Airport in Phoenix by the National Oceanic and Atmospheric Administration (NOAA).

Summary for October 2008

Average high temperature	90
Average low temperature	59
Average daily temperature	77
Average dew point	33
Cooling degree hours (base 75°)	4,352
Heating degree hours (base 65°)	760
Cooling degree days (base 65°)	387
Heating degree days (base 65°)	4

Historical summary for October

	Cooling degree hours (base 75°)	Heating degree hours (base 65°)
2008	4,352	760
2007	4,015	119
2006	3,018	332
10 year average	3,908	404

Monthly history

2008 2007 2006 10 year avg. Degree hours Heating Cooling Heating Cooling Heating Cooling Heating Cooling January 7,864 0 9,324 7 6,567 55 7,138 43 February 6,058 112 4,588 100 3,952 198 5,014 99 March 2,530 1,019 2,096 1,750 4,133 230 2,941 992 April 706 2,626 779 2,723 627 2,115 1,032 2,506 May 553 5,049 28 7,861 0 8,223 105 7,450 June 0 13,710 0 13,334 0 14,436 2 12,788 July 0 14,735 0 15,313 0 15,915 6 15,197 August 0 13,367 0 15,136 0 12,586 0 13,671 September 0 10,503 0 10,482 0 7,915 0 10,299 October 760 4,352 119 4,015 332 3,018 404 3,908 November 1,160 679 1,363 1,450 2,460 967 2,896 701 December     9,474 0 8,714 11 7,196 8 Year total 19,631 66,152 27,771 72,171 26,785 65,669 26,734 67,662

Monthly detail
Oct 2008 Sep 2008 Aug 2008	Jul 2008 Jun 2008 May 2008	Apr 2008 Mar 2008 Feb 2008	Jan 2008 Dec 2007 Nov 2007

Definitions

Degree hour: The difference between a base temperature of 65°F (heating), 75°F (cooling), and the average ambient air temperature for the hour. If the average ambient air temperature for the hour falls below 65°F the degree hour is recorded as a heating degree hour. A cooling degree hour is recorded if the average air temperature for the hour rises above 75°F.

Degree day: The difference between a base temperature of 65°F (heating and cooling) and the average ambient air temperature for the day. If the average ambient air temperature for the day falls below 65°F, the degree day is recorded as a heating degree day. A cooling degree day is recorded if the average air temperature for the day rises above 65°F.

Base 75: Used in calculating the degree hours based on an outside air temperature of 75°F.

Base 65: Used in calculating the degree hours based on an outside air temperature of 65°F.

Dew point: The temperature to which air must be cooled in order to reach saturation (assuming air pressure and moisture content are constant).

Notification of updates

Sign up to receive an e-mail when this page is updated with the new month's weather information using our e-Notification service. Simply log in to view your account information, choose "e-Notifications" from the menu, and select the "Monthly weather updates" option.

If you have questions or problems with this service, please click here to contact us or call (602) 236-8858 . Technical Support is available to help you Monday through Friday, 8:30 a.m. to 5 p.m., excluding holidays. If you contact us outside of those hours, we will reply to all messages in the order in which they were received. Thank you.