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 were 4.0 degrees Fahrenheit on 28 September 2026, compared to 10.0 on the previous day.
Sample. There are 16,707 records overall in the daily time series shown in the graph above. The span of time covered by the series goes from January 1981 to September 2026.
History. Here's a snapshot of a few statistics we computed on the entire sample: degree days had a mean value of 7.9 degrees Fahrenheit; they reached their highest level of 33.0 on 15 July 2003; they reached a minimum of 0.0 on 1 January 1981.
Latest values
| Date | Value - Degrees Fahrenheit |
|---|---|
| 2026-09-26 | 10.0 |
| 2026-09-27 | 10.0 |
| 2026-09-28 | 4.0 |
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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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