Cooling degree days (F) - Arizona (US) - NOAA - Daily
This series is part of the dataset: Heating and cooling degree days (NOAA)
Download Full Dataset (.xlsx)Latest updates. In Arizona, cooling degree days stood at 13.0 degrees Fahrenheit on 23 September 2025, versus 10.0 on the previous day.
Sample. There are 16,337 records in the daily series shown in the figure above. The series covers the time period going from January 1981 to September 2025.
History. Have a look at a few simple statistics calculated on the full sample: degree days hit a maximum of 33.0 degrees Fahrenheit on 15 July 2003; they recorded a bottom of 0.0 on 1 January 1981; they had an average value of 7.9.
Latest values
| Date | Value - Degrees Fahrenheit |
|---|---|
| 2025-09-21 | 13.0 |
| 2025-09-22 | 10.0 |
| 2025-09-23 | 13.0 |
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Series Metadata
| Field | Value |
|---|---|
| Description | Cooling degree days |
| Country | Arizona (US) |
| Economic concept | Cooling needs |
| Data type | Estimate based on daily minimum and maximum temperatures |
| Deflation method | Not applicable |
| Seasonally adjusted | No |
| Rescaling | Population-weighted averages of weather-station observations |
| Frequency | Daily |
| Unit | Degrees Fahrenheit |
| Source | NOAA National Weather Service |
| Source type | Federal Administration |
| Data licence | Not copyrightable under U.S. law |
| Measure type | (max_daily_temperature + min_daily_temperature) / 2 - 65F |
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