Hot Days (Tmax>86℉) and Waves (2 or more consecutive Hot Days)
in Maryland: January 1 - August 31, 2026
NOTE: Data From preliminary NCEI's nClimDiv-Daily data set v1.0.0.
Data labeled as scaled on September 5, 2026.
| 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 | 51 | 89.7 | 100.0 | 4 Jul | 11 | 4 | 8 | 15 Apr | 20 Aug | 90.0 | 89.1 | 93.4 | 5 | 100.0 | 4 Jul |
| Clim. Div. 1 | 60 | 90.6 | 100.8 | 4 Jul | 11 | 5 | 10 | 16 Apr | 18 Aug | 90.8 | 90.4 | 93.6 | 6 | 100.8 | 4 Jul |
| Clim. Div. 2 | 65 | 90.8 | 102.0 | 5 Jul | 13 | 4 | 11 | 15 Apr | 18 Aug | 90.9 | 90.5 | 94.5 | 8 | 102.0 | 5 Jul |
| Clim. Div. 3 | 66 | 89.8 | 100.3 | 4 Jul | 14 | 4 | 12 | 15 Apr | 28 Aug | 89.9 | 89.3 | 94.1 | 8 | 100.3 | 4 Jul |
| Clim. Div. 4 | 64 | 90.0 | 101.1 | 4 Jul | 13 | 4 | 11 | 15 Apr | 18 Aug | 90.1 | 89.4 | 94.9 | 7 | 101.1 | 4 Jul |
| Clim. Div. 5 | 65 | 90.3 | 102.3 | 5 Jul | 10 | 6 | 14 | 15 Apr | 18 Aug | 90.5 | 90.1 | 95.1 | 7 | 102.3 | 5 Jul |
| Clim. Div. 6 | 45 | 89.9 | 100.5 | 4 Jul | 8 | 4 | 8 | 15 Apr | 7 Aug | 90.5 | 90.1 | 95.1 | 5 | 100.5 | 4 Jul |
| Clim. Div. 7 | 39 | 89.5 | 98.3 | 4 Jul | 7 | 4 | 7 | 16 Apr | 5 Aug | 89.9 | 89.5 | 94.1 | 5 | 98.3 | 4 Jul |
| Clim. Div. 8 | 7 | 88.1 | 90.1 | 4 Jul | 1 | 5 | 5 | 1 Jul | 1 Jul | 88.8 | 88.8 | 88.8 | 1 | 90.1 | 4 Jul |
| Allegany | 32 | 89.6 | 96.9 | 4 Jul | 6 | 4 | 7 | 16 Apr | 5 Aug | 90.2 | 89.8 | 93.3 | 4 | 96.9 | 4 Jul |
| Anne Arundel | 65 | 89.9 | 101.3 | 4 Jul | 11 | 5 | 14 | 15 Apr | 18 Aug | 90.2 | 89.6 | 94.8 | 7 | 101.3 | 4 Jul |
| Baltimore | 54 | 89.8 | 101.3 | 4 Jul | 9 | 5 | 11 | 15 Apr | 4 Aug | 90.2 | 89.9 | 95.7 | 5 | 101.3 | 4 Jul |
| Calvert | 58 | 89.9 | 100.0 | 5 Jul | 12 | 4 | 9 | 15 Apr | 18 Aug | 90.1 | 89.5 | 94.7 | 7 | 100.0 | 5 Jul |
| Caroline | 67 | 91.2 | 103.0 | 5 Jul | 11 | 5 | 16 | 15 Apr | 18 Aug | 91.3 | 91.3 | 95.5 | 8 | 103.0 | 5 Jul |
| Carroll | 32 | 90.5 | 99.6 | 4 Jul | 7 | 4 | 7 | 15 Apr | 7 Aug | 90.7 | 90.3 | 94.2 | 5 | 99.6 | 4 Jul |
| Cecil | 55 | 90.1 | 101.8 | 4 Jul | 9 | 5 | 14 | 15 Apr | 18 Aug | 90.4 | 90.1 | 95.7 | 5 | 101.8 | 4 Jul |
| Charles | 68 | 90.1 | 100.9 | 4 Jul | 15 | 4 | 13 | 15 Apr | 28 Aug | 90.1 | 89.4 | 95.0 | 8 | 100.9 | 4 Jul |
| Dorchester | 65 | 90.8 | 101.7 | 5 Jul | 14 | 4 | 11 | 15 Apr | 28 Aug | 90.8 | 90.3 | 95.3 | 8 | 101.7 | 5 Jul |
| Frederick | 35 | 90.2 | 99.4 | 4 Jul | 7 | 4 | 7 | 15 Apr | 7 Aug | 90.4 | 90.0 | 94.3 | 5 | 99.4 | 4 Jul |
| Garrett | 7 | 88.1 | 90.1 | 4 Jul | 1 | 5 | 5 | 1 Jul | 1 Jul | 88.8 | 88.8 | 88.8 | 1 | 90.1 | 4 Jul |
| Harford | 55 | 90.0 | 102.0 | 3 Jul | 10 | 4 | 11 | 15 Apr | 18 Aug | 90.3 | 89.8 | 96.1 | 5 | 102.0 | 3 Jul |
| Howard | 41 | 90.2 | 100.1 | 4 Jul | 8 | 4 | 7 | 15 Apr | 7 Aug | 90.8 | 90.2 | 94.8 | 5 | 100.1 | 4 Jul |
| Kent | 64 | 90.2 | 102.2 | 5 Jul | 10 | 6 | 14 | 15 Apr | 18 Aug | 90.3 | 89.9 | 94.9 | 7 | 102.2 | 5 Jul |
| Montgomery | 44 | 90.0 | 99.6 | 4 Jul | 9 | 4 | 7 | 15 Apr | 20 Aug | 90.5 | 89.7 | 94.7 | 5 | 99.6 | 4 Jul |
| Prince George's | 67 | 89.8 | 101.0 | 4 Jul | 15 | 4 | 11 | 15 Apr | 28 Aug | 89.9 | 89.1 | 94.9 | 8 | 101.0 | 4 Jul |
| Queen Anne's | 65 | 90.5 | 102.5 | 5 Jul | 10 | 6 | 14 | 15 Apr | 18 Aug | 90.7 | 90.4 | 95.1 | 7 | 102.5 | 5 Jul |
| Saint Mary's | 61 | 89.9 | 99.7 | 4 Jul | 14 | 4 | 10 | 16 Apr | 28 Aug | 89.9 | 89.3 | 94.6 | 8 | 99.7 | 4 Jul |
| Somerset | 59 | 90.8 | 100.4 | 4 Jul | 11 | 5 | 10 | 18 May | 28 Aug | 90.8 | 90.4 | 93.6 | 5 | 100.4 | 4 Jul |
| Talbot | 62 | 90.6 | 101.6 | 5 Jul | 12 | 4 | 9 | 15 Apr | 18 Aug | 90.7 | 90.2 | 94.1 | 7 | 101.6 | 5 Jul |
| Washington | 41 | 90.0 | 99.6 | 4 Jul | 7 | 4 | 7 | 15 Apr | 7 Aug | 90.7 | 90.2 | 94.9 | 5 | 99.6 | 4 Jul |
| Wicomico | 65 | 91.1 | 101.9 | 5 Jul | 13 | 4 | 11 | 15 Apr | 18 Aug | 91.3 | 90.9 | 95.0 | 8 | 101.9 | 5 Jul |
| Worcester | 58 | 90.2 | 100.4 | 4 Jul | 10 | 5 | 10 | 18 May | 18 Aug | 90.4 | 90.2 | 92.7 | 5 | 100.4 | 4 Jul |
| Baltimore City | 65 | 90.2 | 102.1 | 4 Jul | 11 | 5 | 14 | 15 Apr | 18 Aug | 90.5 | 89.9 | 95.4 | 7 | 102.1 | 4 Jul |