Hot Days (Tmax>86℉) and Waves (2 or more consecutive Hot Days)
in Maryland: January 1 - June 30, 2026


NOTE: Data From preliminary NCEI's nClimDiv-Daily data set v1.0.0.
Data labeled as scaled on July 6, 2026.

RegionNo. of Hot DaysMean Temp among all Hot Days (℉)Max Temp among all Hot Days (℉)Day when Max Temp among Hot Days occursNo. of Waves (#)Mean Duration of Waves (days)Longest Wave (days)Start of the First WaveStart of Last WaveMean 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 occursMax Temp within all Waves (℉)Day when Max Temp within all Waves occurs
Statewide 20 89.7 95.112 Jun 4 4 515 Apr11 Jun 90.2 89.9 91.8 2 95.112 Jun
Clim. Div. 1 20 90.8 97.812 Jun 5 3 516 Apr21 Jun 90.6 90.1 92.6 4 97.812 Jun
Clim. Div. 2 24 91.2 97.813 Jun 7 3 515 Apr26 Jun 91.4 90.8 93.7 2 97.813 Jun
Clim. Div. 3 23 90.4 96.212 Jun 6 3 515 Apr21 Jun 90.6 90.1 92.7 2 96.212 Jun
Clim. Div. 4 24 90.8 96.920 May 7 3 515 Apr26 Jun 90.9 90.4 94.0 2 96.920 May
Clim. Div. 5 23 90.4 96.413 Jun 6 3 515 Apr26 Jun 90.5 90.0 92.6 2 96.413 Jun
Clim. Div. 6 19 89.7 94.712 Jun 4 4 515 Apr11 Jun 90.1 90.0 91.9 2 94.712 Jun
Clim. Div. 7 16 88.8 94.719 May 4 3 516 Apr11 Jun 88.9 88.9 90.9 2 94.719 May
Clim. Div. 8 1 86.9 86.919 May 0***********************************************
Allegany 16 88.6 94.319 May 4 3 516 Apr11 Jun 88.7 88.6 90.6 2 94.319 May
Anne Arundel 25 90.4 96.412 Jun 7 3 515 Apr26 Jun 90.7 90.1 93.4 2 96.412 Jun
Baltimore 20 90.1 95.312 Jun 5 3 515 Apr18 Jun 90.3 89.9 92.4 2 95.312 Jun
Calvert 22 90.2 95.812 Jun 6 3 515 Apr21 Jun 90.2 89.8 92.3 4 95.812 Jun
Caroline 24 92.0 98.713 Jun 7 3 515 Apr26 Jun 92.1 91.5 95.0 2 98.713 Jun
Carroll 17 89.2 94.419 May 4 4 515 Apr11 Jun 89.3 89.2 91.1 2 94.419 May
Cecil 20 90.0 95.413 Jun 4 4 515 Apr11 Jun 90.4 90.3 91.6 2 95.413 Jun
Charles 24 90.9 96.920 May 7 3 515 Apr26 Jun 91.0 90.5 93.9 2 96.920 May
Dorchester 24 91.1 97.812 Jun 7 3 515 Apr26 Jun 91.3 90.7 93.6 4 97.812 Jun
Frederick 17 89.1 94.719 May 4 4 515 Apr11 Jun 89.2 89.1 91.1 2 94.719 May
Garrett 1 86.9 86.919 May 0***********************************************
Harford 19 90.1 95.113 Jun 4 4 515 Apr11 Jun 90.4 90.3 91.6 2 95.113 Jun
Howard 19 90.2 95.720 May 4 4 515 Apr11 Jun 90.7 90.5 92.8 2 95.720 May
Kent 22 90.1 95.913 Jun 6 3 515 Apr26 Jun 90.2 89.7 91.9 2 95.913 Jun
Montgomery 20 89.8 95.420 May 4 4 515 Apr11 Jun 90.4 90.3 92.5 2 95.420 May
Prince George's 24 91.0 97.420 May 7 3 515 Apr26 Jun 91.1 90.5 94.4 2 97.420 May
Queen Anne's 23 90.7 96.813 Jun 6 3 515 Apr26 Jun 90.8 90.3 93.1 2 96.813 Jun
Saint Mary's 21 90.2 95.813 Jun 6 3 516 Apr21 Jun 90.2 89.6 92.1 4 95.813 Jun
Somerset 19 91.1 97.712 Jun 4 4 518 May21 Jun 91.3 91.0 92.6 3 97.712 Jun
Talbot 24 90.5 96.913 Jun 6 3 515 Apr26 Jun 90.8 90.3 92.8 2 96.913 Jun
Washington 17 88.9 95.119 May 4 4 515 Apr11 Jun 89.0 89.0 91.2 2 95.119 May
Wicomico 22 91.6 98.812 Jun 6 3 515 Apr26 Jun 91.5 90.9 93.9 4 98.812 Jun
Worcester 18 90.3 97.312 Jun 4 3 518 May21 Jun 90.3 90.1 91.7 2 97.312 Jun
Baltimore City 25 90.6 96.712 Jun 7 3 515 Apr26 Jun 90.8 90.2 93.3 2 96.712 Jun