SoCalGas serves the California counties of Fresno, Imperial, Kern, Kings, Los Angeles, Orange, Riverside, Santa Barbara, San Bernardino, San Luis Obispo, Tulare, and Ventura. Climate zones are based upon geographic areas and annual heating degree days adopted by the California Department of Housing and Community Development. A heating degree day is accumulated for every degree Fahrenheit the average daily temperature is below 65°. (Over 90% of SoCalGas customers reside in Zone 1.) The zones listed below are used to determine the allowable baseline quantities for residential usage during the core billing period from November through April.
|
|
Degree Days[1] |
|
Zone 1 |
2500 or less |
|
Zone 2 |
2501 - 4500 |
|
Zone 3 |
4501 - 7000 |
|
|
|
Area |
Basic Quantities per Residence, Therms/day |
|
|
Summer |
Winter |
|
Zone 1 |
0.473 |
1.691 |
|
Zone 2 |
0.473 |
1.823 |
|
Zone 3 |
0.473 |
2.950 |
[1] Degree days are a unit of measure used to express the extent to which temperatures vary from a specific reference temperature during a given time period (month, season, year). For SoCalGas, the values are in hours during the year measured for heating below certain climate temperatures.