Cooling degree days (F) - Maryland (US) - NOAA - Daily
This series is part of the dataset: Heating and cooling degree days (NOAA)
Download Full Dataset (.xlsx)Latest updates. In Maryland, cooling degree days stood at 6.0 degrees Fahrenheit on 23 September 2025, versus 3.0 on 22 September.
Sample. There are 16,337 data points overall in the daily series presented in the figure above. The series covers the time range extending from January 1981 to September 2025.
History. Here's a glimpse of a few summary statistics computed on the entire sample: degree days had an average value of 3.5 degrees Fahrenheit; they hit a trough of 0.0 on 1 January 1981; they reached their highest level of 25.0 on 22 July 2011.
Latest values
| Date | Value - Degrees Fahrenheit |
|---|---|
| 2025-09-21 | 3.0 |
| 2025-09-22 | 3.0 |
| 2025-09-23 | 6.0 |
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Series Metadata
| Field | Value |
|---|---|
| Description | Cooling degree days |
| Country | Maryland (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 |
Series in the same data set
Discover the other time series included in this data set.