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Evansville, IN Weather on August 18
August 18th in Evansville, IN typically brings warm summer weather, with average highs around 89°F and lows near 69°F. Over 55 years of records, the warmest August 18th was in 1988 (89°F average), while the coldest was 1976 (70°F) — a 19°F range across recorded history. Rain or other precipitation has occurred on about 20% of August 18th dates historically, with the wettest August 18th recording 1.35" of rain. The last decade has been 2.1°F cooler on this date compared to 20-30 years ago.
What to Expect on August 18
Planning for August 18th in Evansville, IN? Stay hydrated and seek shade during peak afternoon hours.
August 18 Weather Records for Evansville
- •The all-time record high for August 18th in Evansville, IN is 101°F, set in 1995.
- •The coldest August 18th on record dropped to 53°F in 1976.
- •Temperatures have reached 90°F or higher on August 18th in 28 of the last 55 years.
Frequently Asked Questions
What was the warmest August 18 ever in Evansville?
The warmest August 18 in Evansville, IN reached 101°F in 1995. That is 12°F above the long-term average high of 89°F.
What was the coldest August 18 ever in Evansville?
The coldest August 18 in Evansville, IN dropped to 53°F in 1976. That is 16°F below the long-term average low of 69°F.
What is the average temperature on August 18 in Evansville?
On August 18, Evansville averages a high of 89°F and a low of 69°F based on 55 years of NOAA weather observations from EVANSVILLE MUSEUM.
How many years of weather data are available for August 18 in Evansville?
We have 55 years of weather records for August 18 in Evansville, IN, sourced from NOAA's Global Historical Climatology Network. Records include daily high and low temperatures, precipitation, and snowfall data going back to 2025.
August 18 Weather History in Evansville
| Year | High | Low | Precip | Snow |
|---|---|---|---|---|
| 2025 | 94°F | 72°F | 0" | -- |
| 2024 | 84°F | 66°F | 0" | -- |
| 2023 | 81°F | 64°F | -- | -- |
| 2022 | 86°F | 66°F | 0" | -- |
| 2021 | 89°F | 73°F | -- | -- |
| 2020 | 87°F | 71°F | 0" | -- |
| 2019 | 95°F | -- | 0" | -- |
| 2018 | 86°F | 73°F | 0.08" | -- |
| 2017 | 87°F | 70°F | 0" | -- |
| 2016 | 83°F | 72°F | 0" | -- |
| 2015 | 88°F | 68°F | 0" | -- |
| 2014 | 83°F | 70°F | 0.04" | -- |
| 2013 | 87°F | 61°F | 0" | -- |
| 2012 | 84°F | 62°F | 0" | -- |
| 2011 | 93°F | 74°F | 0.05" | -- |
| 2010 | 93°F | 75°F | 0" | -- |
| 2009 | 90°F | 72°F | 0" | -- |
| 2008 | 90°F | 65°F | 0" | -- |
| 2007 | 97°F | 68°F | 0" | -- |
| 2006 | 95°F | 75°F | 0" | -- |
| 2005 | 89°F | 73°F | 0.92" | -- |
| 2004 | 94°F | 70°F | 0" | -- |
| 2003 | 95°F | 71°F | 0.06" | -- |
| 2002 | 91°F | 76°F | 0" | -- |
| 2001 | 88°F | 69°F | 0" | -- |
| 2000 | 96°F | 72°F | 1.11" | -- |
| 1999 | 90°F | 60°F | 0" | -- |
| 1998 | 90°F | 72°F | 0" | -- |
| 1997 | 83°F | 65°F | 0" | -- |
| 1996 | 89°F | 68°F | 0" | -- |
| 1995 | 101°F | 78°F | 0" | -- |
| 1994 | 91°F | 66°F | 0" | -- |
| 1993 | 92°F | 75°F | 0" | -- |
| 1992 | 84°F | 58°F | 0" | -- |
| 1991 | 88°F | 67°F | 0" | -- |
| 1990 | 94°F | 73°F | 0" | -- |
| 1989 | 82°F | 63°F | 0.05" | -- |
| 1988 | 100°F | 77°F | 0.07" | -- |
| 1987 | 91°F | 65°F | 0" | -- |
| 1986 | 89°F | 69°F | 0" | -- |
| 1985 | 91°F | 68°F | 0" | -- |
| 1984 | 79°F | 69°F | 1.35" | -- |
| 1983 | 97°F | 75°F | 0" | -- |
| 1982 | 87°F | 66°F | 0" | -- |
| 1981 | 83°F | 58°F | 0" | -- |
| 1980 | 96°F | 75°F | 0.16" | -- |
| 1979 | 91°F | 65°F | 0" | -- |
| 1978 | 93°F | 70°F | 0" | -- |
| 1977 | 81°F | 59°F | 0" | -- |
| 1976 | 87°F | 53°F | 0" | -- |
| 1975 | 90°F | 69°F | 0" | -- |
| 1974 | 82°F | 68°F | 0.52" | -- |
| 1973 | 91°F | 67°F | 0" | -- |
| 1972 | 96°F | 72°F | 0" | -- |
| 1971 | 88°F | 65°F | 0" | -- |
Based on 55 years of data from NOAA station: EVANSVILLE MUSEUM
Monthly Climate Averages
Historical temperature and precipitation averages for Evansville, IN, based on 55+ years of weather data.
Temperatures in Fahrenheit. Precipitation and snowfall in inches.