Hottest Junes in Delaware since 1895

Written by:
June 5, 2026
Maxim Grohotov // Shutterstock

Hottest Junes in Delaware since 1895

In 2022, the continental United States experienced its , according to data from the National Oceanic and Atmospheric Administration, while 20 states saw one of their in the same month. The year prior, July marked the .

Climate change is driving rising temperatures and more record heat. The has climbed each decade since 1880 by about .14 degrees Fahrenheit, or roughly 2 degrees Fahrenheit total.

compiled a ranking of the hottest Junes in Delaware since 1895 using data from the . Rankings are based on the highest average temperature in each month. For each of the hottest months listed below, we've included the average state temperature, state-wide highs and lows for the month, and the total precipitation.

#10. June 1989 (tie)
- Average temperature: 74°F
- Monthly high temperature: 83°F
- Monthly low temperature: 65.1°F
- Total precipitation: 6.65"

#10. June 1957 (tie)
- Average temperature: 74°F
- Monthly high temperature: 84.5°F
- Monthly low temperature: 63.5°F
- Total precipitation: 3.56"

#9. June 2011
- Average temperature: 74.3°F
- Monthly high temperature: 85.2°F
- Monthly low temperature: 63.3°F
- Total precipitation: 1.86"

#7. June 1994 (tie)
- Average temperature: 74.4°F
- Monthly high temperature: 85.2°F
- Monthly low temperature: 63.7°F
- Total precipitation: 2.55"

#7. June 1934 (tie)
- Average temperature: 74.4°F
- Monthly high temperature: 84.9°F
- Monthly low temperature: 63.8°F
- Total precipitation: 2.38"

#5. June 2025 (tie)
- Average temperature: 74.8°F
- Monthly high temperature: 84.4°F
- Monthly low temperature: 65.2°F
- Total precipitation: 2.59"

#5. June 2024 (tie)
- Average temperature: 74.8°F
- Monthly high temperature: 85.5°F
- Monthly low temperature: 64.1°F
- Total precipitation: 3.08"

#4. June 2008
- Average temperature: 75.2°F
- Monthly high temperature: 86.4°F
- Monthly low temperature: 64.1°F
- Total precipitation: 3.4"

#3. June 1925
- Average temperature: 76°F
- Monthly high temperature: 88°F
- Monthly low temperature: 63.9°F
- Total precipitation: 1.81"

#2. June 1943
- Average temperature: 76.1°F
- Monthly high temperature: 86.6°F
- Monthly low temperature: 65.6°F
- Total precipitation: 3.15"

#1. June 2010
- Average temperature: 77.4°F
- Monthly high temperature: 88.1°F
- Monthly low temperature: 66.6°F
- Total precipitation: 2.13"

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