Hot Days (Tmax>86℉) and Waves (2 or more consecutive Hot Days)
in Maryland: January 1 - August 31, 2025
NOTE: Data From preliminary NCEI's nClimDiv-Daily data set v1.0.0.
Data labeled as scaled on September 16, 2025.
| Region | No. of Hot Days | Mean Temp among all Hot Days (℉) | Max Temp among all Hot Days (℉) | Day when Max Temp among Hot Days occurs | No. of Waves (#) | Mean Duration of Waves (days) | Longest Wave (days) | Start of the First Wave | Start of Last Wave | Mean Temp of all Temps in Waves (℉) | Mean Temp of Waves Mean Temps (℉) | Max Temp of Waves Mean Temps (℉) | No. of Wave when Max Temp of Waves Mean Temps occurs | Max Temp within all Waves (℉) | Day when Max Temp within all Waves occurs |
|---|
| Statewide | 43 | 90.4 | 98.3 | 25 Jun | 9 | 4 | 8 | 13 Jun | 13 Aug | 90.4 | 89.9 | 95.1 | 3 | 98.3 | 25 Jun |
| Clim. Div. 1 | 49 | 90.4 | 99.7 | 25 Jun | 7 | 6 | 10 | 13 Jun | 13 Aug | 90.7 | 90.4 | 94.4 | 2 | 99.7 | 25 Jun |
| Clim. Div. 2 | 53 | 90.7 | 100.1 | 26 Jun | 8 | 6 | 12 | 17 May | 13 Aug | 90.9 | 90.4 | 94.5 | 3 | 100.1 | 26 Jun |
| Clim. Div. 3 | 52 | 90.6 | 98.2 | 26 Jun | 8 | 6 | 10 | 17 May | 13 Aug | 90.7 | 90.3 | 93.5 | 3 | 98.2 | 26 Jun |
| Clim. Div. 4 | 54 | 90.5 | 98.7 | 25 Jun | 6 | 8 | 21 | 17 May | 12 Aug | 90.6 | 90.1 | 93.2 | 3 | 98.7 | 25 Jun |
| Clim. Div. 5 | 49 | 90.5 | 99.7 | 25 Jun | 7 | 6 | 8 | 22 Jun | 12 Aug | 90.9 | 90.7 | 95.7 | 1 | 99.7 | 25 Jun |
| Clim. Div. 6 | 43 | 90.5 | 98.9 | 25 Jun | 6 | 6 | 8 | 22 Jun | 12 Aug | 90.6 | 90.6 | 95.2 | 1 | 98.9 | 25 Jun |
| Clim. Div. 7 | 47 | 90.3 | 96.9 | 25 Jun | 6 | 7 | 20 | 5 Jun | 15 Aug | 90.4 | 90.2 | 94.4 | 2 | 96.9 | 25 Jun |
| Clim. Div. 8 | 8 | 87.5 | 89.4 | 24 Jun | 1 | 5 | 5 | 23 Jun | 23 Jun | 87.9 | 87.9 | 87.9 | 1 | 89.4 | 24 Jun |
| Allegany | 44 | 90.0 | 95.3 | 24 Jun | 6 | 6 | 16 | 22 Jun | 15 Aug | 90.2 | 90.1 | 93.2 | 1 | 95.3 | 24 Jun |
| Anne Arundel | 58 | 90.3 | 99.6 | 25 Jun | 6 | 9 | 21 | 17 May | 12 Aug | 90.6 | 89.9 | 93.8 | 3 | 99.6 | 25 Jun |
| Baltimore | 46 | 90.6 | 99.8 | 25 Jun | 7 | 6 | 8 | 12 Jun | 12 Aug | 90.8 | 90.6 | 96.0 | 2 | 99.8 | 25 Jun |
| Calvert | 49 | 90.4 | 98.5 | 26 Jun | 8 | 6 | 10 | 17 May | 13 Aug | 90.4 | 90.1 | 93.3 | 3 | 98.5 | 26 Jun |
| Caroline | 53 | 90.7 | 100.6 | 25 Jun | 7 | 7 | 12 | 12 Jun | 13 Aug | 91.1 | 91.0 | 94.4 | 2 | 100.6 | 25 Jun |
| Carroll | 43 | 90.1 | 98.7 | 25 Jun | 6 | 6 | 8 | 22 Jun | 12 Aug | 90.2 | 90.2 | 94.9 | 1 | 98.7 | 25 Jun |
| Cecil | 39 | 90.1 | 99.2 | 25 Jun | 8 | 4 | 8 | 22 Jun | 12 Aug | 90.4 | 89.7 | 94.8 | 1 | 99.2 | 25 Jun |
| Charles | 52 | 90.9 | 97.7 | 24 Jun | 7 | 7 | 12 | 17 May | 13 Aug | 91.0 | 90.5 | 93.2 | 3 | 97.7 | 24 Jun |
| Dorchester | 55 | 90.7 | 100.5 | 26 Jun | 8 | 6 | 12 | 17 May | 13 Aug | 90.9 | 90.5 | 95.0 | 3 | 100.5 | 26 Jun |
| Frederick | 47 | 90.2 | 98.4 | 25 Jun | 7 | 6 | 13 | 5 Jun | 12 Aug | 90.2 | 89.8 | 95.0 | 3 | 98.4 | 25 Jun |
| Garrett | 8 | 87.5 | 89.5 | 24 Jun | 1 | 5 | 5 | 23 Jun | 23 Jun | 88.0 | 88.0 | 88.0 | 1 | 89.5 | 24 Jun |
| Harford | 45 | 90.3 | 99.2 | 25 Jun | 7 | 5 | 8 | 22 Jun | 12 Aug | 90.4 | 90.1 | 95.2 | 1 | 99.2 | 25 Jun |
| Howard | 47 | 90.2 | 98.8 | 25 Jun | 9 | 5 | 8 | 13 Jun | 12 Aug | 90.4 | 89.9 | 95.3 | 3 | 98.8 | 25 Jun |
| Kent | 46 | 90.7 | 99.7 | 25 Jun | 7 | 5 | 8 | 22 Jun | 12 Aug | 91.0 | 90.8 | 95.5 | 1 | 99.7 | 25 Jun |
| Montgomery | 48 | 90.1 | 97.8 | 25 Jun | 9 | 5 | 9 | 13 Jun | 12 Aug | 90.3 | 89.8 | 94.6 | 3 | 97.8 | 25 Jun |
| Prince George's | 52 | 90.6 | 98.0 | 25 Jun | 7 | 7 | 12 | 17 May | 12 Aug | 90.6 | 90.0 | 92.8 | 3 | 98.0 | 25 Jun |
| Queen Anne's | 50 | 90.5 | 99.6 | 25 Jun | 9 | 5 | 8 | 13 Jun | 13 Aug | 90.9 | 90.5 | 95.7 | 3 | 99.6 | 25 Jun |
| Saint Mary's | 51 | 90.5 | 98.8 | 26 Jun | 8 | 6 | 10 | 17 May | 13 Aug | 90.6 | 90.3 | 93.8 | 3 | 98.8 | 26 Jun |
| Somerset | 50 | 90.7 | 99.8 | 26 Jun | 8 | 5 | 10 | 17 May | 13 Aug | 90.8 | 90.2 | 94.6 | 3 | 99.8 | 26 Jun |
| Talbot | 50 | 90.6 | 99.4 | 25 Jun | 8 | 5 | 12 | 13 Jun | 13 Aug | 90.8 | 90.9 | 96.0 | 3 | 99.4 | 25 Jun |
| Washington | 50 | 90.7 | 98.6 | 25 Jun | 7 | 7 | 20 | 5 Jun | 15 Aug | 90.7 | 90.1 | 93.0 | 3 | 98.6 | 25 Jun |
| Wicomico | 49 | 90.9 | 100.4 | 25 Jun | 7 | 6 | 10 | 13 Jun | 13 Aug | 91.2 | 90.9 | 95.0 | 2 | 100.4 | 25 Jun |
| Worcester | 42 | 90.4 | 99.3 | 25 Jun | 6 | 6 | 9 | 19 Jun | 13 Aug | 90.7 | 90.3 | 93.8 | 1 | 99.3 | 25 Jun |
| Baltimore City | 60 | 90.7 | 101.2 | 25 Jun | 7 | 8 | 21 | 17 May | 12 Aug | 90.9 | 90.0 | 94.7 | 4 | 101.2 | 25 Jun |