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 January 2012

Average high temperature	72
Average low temperature	42
Average daily temperature	58
Average dew point	25
Cooling degree hours (base 75°)	61
Heating degree hours (base 65°)	7,880
Cooling degree days (base 65°)	0
Heating degree days (base 65°)	217

Historical summary for January

	Cooling degree hours (base 75°)	Heating degree hours (base 65°)
2012	61	7,880
2011	1	8,793
2010	0	6,593
10 year average	46	7,031

Monthly history

2012 2011 2010 10 year avg. Degree hours Heating Cooling Heating Cooling Heating Cooling Heating Cooling January 7,880 61 8,793 1 6,593 0 7,031 46 February 1,294 0 8,532 68 5,113 8 5,039 86 March     3,435 1,097 5,503 405 2,725 921 April     1,462 2,982 2,187 1,812 968 2,085 May     292 5,712 535 5,875 155 6,441 June     0 13,955 0 13,679 2 11,579 July     0 16,936 0 17,208 0 14,573 August     0 19,070 0 15,852 0 13,137 September     0 12,565 0 13,594 0 9,716 October     694 5,361 734 4,214 486 3,723 November     5,161 165 5,541 659 2,987 596 December     10,989 2 7,020 110 7,462 19 Year total 9,174 61 39,358 77,914 33,226 73,416 26,855 62,922

Monthly detail
Jan 2012 Dec 2011 Nov 2011	Oct 2011 Sep 2011 Aug 2011	Jul 2011 Jun 2011 May 2011	Apr 2011 Mar 2011 Feb 2011

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.