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 10.0 degrees Fahrenheit on 17 September 2026, compared to 6.0 on 16 September.
Sample. There are 16,696 data points overall in the daily time series presented in the chart above. The period covered by the series goes from January 1981 to September 2026.
History. Here’s a quick look at some statistics calculated on the whole sample: degree days averaged 3.5 degrees Fahrenheit; they attained a maximum of 25.0 on 22 July 2011; they registered a minimum of 0.0 on 1 January 1981.
Latest values
| Date | Value - Degrees Fahrenheit |
|---|---|
| 2026-09-15 | 2.00000 |
| 2026-09-16 | 6.00000 |
| 2026-09-17 | 10.0000 |
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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 |
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