Cooling degree days (F) - Iowa (US) - NOAA - Daily
This series is part of the dataset: Heating and cooling degree days (NOAA)
Download Full Dataset (.xlsx)Latest updates. In Iowa, cooling degree days were 0.0 degrees Fahrenheit on 21 June 2026, versus 1.0 on 20 June 2026.
Sample. There are 16,608 data points in the daily time series presented in the chart above. The series covers the time range extending from January 1981 to June 2026.
History. Here's a glimpse of a few statistics calculated on the whole sample: degree days reached their maximum of 24.0 degrees Fahrenheit on 17 August 1988; they reached their minimum of 0.0 on 1 January 1981; they were equal on average to 2.2.
Latest values
| Date | Value - Degrees Fahrenheit |
|---|---|
| 2026-06-19 | 1.0 |
| 2026-06-20 | 1.0 |
| 2026-06-21 | 0.0 |
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Series Metadata
| Field | Value |
|---|---|
| Description | Cooling degree days |
| Country | Iowa (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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