Hot Days (Tmax>86℉) and Waves (2 or more consecutive Hot Days) in Maryland
1991-2020 Climatology: January 1 - December 31


NOTE: Data From preliminary NCEI's nClimDiv-Daily data set v1.0.0.
Data labeled as scaled on November 11, 2024.

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 48 89.5 95.713 Jul 9 5 1124 May 3 Sep 89.7 89.2 91.8 5 95.713 Jul
Clim. Div. 1 53 89.8 97.116 Jul 10 5 1226 May 3 Sep 90.0 89.5 92.5 5 97.116 Jul
Clim. Div. 2 59 90.2 97.6 8 Jul 10 5 1421 May 5 Sep 90.4 89.8 93.0 5 97.6 8 Jul
Clim. Div. 3 57 90.0 96.914 Jul 11 5 1417 May10 Sep 90.2 89.6 92.8 5 96.914 Jul
Clim. Div. 4 60 90.1 97.214 Jul 11 5 1515 May 8 Sep 90.4 89.8 92.9 6 97.214 Jul
Clim. Div. 5 56 90.0 97.212 Jul 10 5 1223 May 4 Sep 90.2 89.6 92.7 5 97.212 Jul
Clim. Div. 6 47 89.6 95.911 Jul 9 5 1123 May 5 Sep 89.8 89.4 91.8 5 95.911 Jul
Clim. Div. 7 47 89.4 95.315 Jul 9 4 1021 May 6 Sep 89.7 89.2 91.7 6 95.313 Jul
Clim. Div. 8 5 87.2 88.620 Jul 1 3 4 2 Jul27 Jul 87.5 87.4 87.9 1 89.016 Jul
Allegany 43 89.2 94.721 Jul 9 4 923 May 5 Sep 89.4 89.0 91.5 6 94.721 Jul
Anne Arundel 59 90.2 97.413 Jul 10 5 1418 May 8 Sep 90.4 89.8 92.9 5 97.413 Jul
Baltimore 50 89.8 96.310 Jul 10 5 1221 May 4 Sep 90.0 89.4 92.2 5 96.310 Jul
Calvert 53 89.9 96.514 Jul 10 5 1325 May 5 Sep 90.1 89.6 92.6 5 96.514 Jul
Caroline 62 90.3 97.9 7 Jul 11 5 1418 May 8 Sep 90.5 89.8 93.1 6 97.9 7 Jul
Carroll 41 89.3 95.114 Jul 9 4 924 May 2 Sep 89.5 89.1 91.6 5 95.114 Jul
Cecil 47 89.6 96.314 Jul 9 5 1126 May 2 Sep 89.8 89.2 92.1 5 96.314 Jul
Charles 62 90.2 97.314 Jul 11 5 1512 May13 Sep 90.4 89.7 93.0 6 97.314 Jul
Dorchester 59 90.1 97.5 8 Jul 11 5 1424 May 7 Sep 90.4 89.7 93.0 6 97.5 8 Jul
Frederick 45 89.5 95.513 Jul 9 4 1022 May 5 Sep 89.7 89.2 91.9 5 95.513 Jul
Garrett 5 87.2 88.620 Jul 1 3 4 4 Jul29 Jul 87.4 87.4 87.9 1 89.017 Jul
Harford 50 89.8 96.611 Jul 10 5 1222 May 2 Sep 90.0 89.4 92.2 5 96.611 Jul
Howard 49 89.6 95.811 Jul 10 4 1120 May 5 Sep 89.9 89.4 92.0 6 95.811 Jul
Kent 54 89.9 97.011 Jul 10 5 1223 May 4 Sep 90.1 89.6 92.7 5 97.011 Jul
Montgomery 48 89.6 95.815 Jul 10 4 1120 May 6 Sep 89.8 89.4 92.3 6 95.815 Jul
Prince George's 59 90.2 97.113 Jul 11 5 1414 May 9 Sep 90.4 89.8 92.8 6 97.113 Jul
Queen Anne's 56 90.1 97.312 Jul 10 5 1322 May 5 Sep 90.3 89.7 92.8 5 97.312 Jul
Saint Mary's 54 89.9 96.615 Jul 10 5 1424 May 8 Sep 90.2 89.5 92.7 5 96.615 Jul
Somerset 54 89.9 97.115 Jul 10 5 1326 May 3 Sep 90.1 89.5 92.6 5 97.115 Jul
Talbot 57 90.1 97.4 9 Jul 10 5 1323 May 5 Sep 90.4 89.8 92.9 5 97.4 9 Jul
Washington 51 89.7 96.219 Jul 10 5 1218 May 6 Sep 89.9 89.4 92.4 5 96.219 Jul
Wicomico 59 90.1 97.611 Jul 11 5 1323 May 6 Sep 90.3 89.6 92.9 5 97.611 Jul
Worcester 47 89.6 96.716 Jul 9 5 1129 May 2 Sep 89.8 89.3 92.4 4 96.716 Jul
Baltimore City 63 90.4 97.911 Jul 11 6 1515 May 7 Sep 90.6 89.9 93.2 5 97.911 Jul