2021 was one of the warmer overall summers for the state of Maryland dating back to 1895, mostly due to much-above-average Minimum Temperatures. Here are the statewide rankings for various temperature categories, covering Meteorological Summer (June 1st – August 31st):

UPDATED DATA AS OF 10/19/2021:

Maximum Temperatures:
1. Ranked #12 warmest August with 86.8°.

2. Ranked #14 warmest Summer with 86.0° 

Minimum Temperatures:

1. Ranked #9 warmest June with 63.0° (tying 2013, 2008, 1994, 1922).

2. Ranked #1 warmest August with 68.0° (tying 2018 and 2016).

3. Ranked #4 warmest Summer with 66.0° (tying 2005)

 Mean Temperatures: 

 1. Ranked #12 warmest June with 73.3°.

 2. Ranked #3 warmest August with 77.4°.

 3. Ranked #5 warmest Summer with 76.0°. 

Please click this link to access a pdf version of all Statewide Top-10 Average Temperatures:

http://marylandclimateandweather.weathertogether.net/top-10-statewide-averages-1895-present/

Data Source: NOAA National Centers for Environmental Information, Climate at a Glance: Statewide TIme Series, published October 2021, retrieved on October 19, 2021.

Notes:

1) The data for 2021 is preliminary as subsequently-reviewed delayed data could alter the values.  

2) All temperatures are in degrees Fahrenheit. 

Photo of the Maryland State House and Flag courtesy of the Washington Blade.