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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 2010

Average high temperature	67
Average low temperature	45
Average daily temperature	57
Average dew point	32
Cooling degree hours (base 75°)	0
Heating degree hours (base 65°)	6,593
Cooling degree days (base 65°)	0
Heating degree days (base 65°)	258

Historical summary for January

	Cooling degree hours (base 75°)	Heating degree hours (base 65°)
2010	0	6,593
2009	84	5,990
2008	0	7,864
10 year average	42	7,016

Monthly history

2010 2009 2008 10 year avg. Degree hours Heating Cooling Heating Cooling Heating Cooling Heating Cooling January 6,593 0 5,990 84 7,864 0 7,016 42 February 1,342 0 4,740 301 6,058 112 4,736 108 March     1,918 898 2,530 1,019 2,452 966 April     1,334 2,371 706 2,626 785 2,243 May     0 9,158 553 5,049 80 6,930 June     20 10,121 0 13,710 2 11,494 July     0 17,244 0 14,735 0 14,173 August     0 15,153 0 13,367 0 12,567 September     325 10,696 0 10,503 32 9,358 October     1,141 2,843 760 4,352 394 3,459 November     2,442 1,028 2,233 765 2,329 677 December     8,838 0 7,779 5 7,383 8 Year total 7,935 0 26,748 69,897 28,483 66,243 25,209 62,025

Monthly detail
Jan 2010 Dec 2009 Nov 2009	Oct 2009 Sep 2009 Aug 2009	Jul 2009 Jun 2009 May 2009	Apr 2009 Mar 2009 Feb 2009

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

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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.