Weather on August 21
Carmel, IN
55 Years of Data
About This Date
August 21st in Carmel, IN typically brings warm summer weather, with average highs around 83°F and lows near 61°F. Over 53 years of records, the warmest August 21st was in 1983 (84°F average), while the coldest was 2024 (60°F) — a 24°F range across recorded history. Rain or other precipitation has occurred on about 26% of August 21st dates historically, with the wettest August 21st recording 1.66" of rain. The last decade has been 2.6°F warmer on this date compared to 20-30 years ago.
The last decade has been 2.6°F warmer on this date compared to 20-30 years ago.
Planning for August 21st in Carmel, IN? Stay hydrated and seek shade during peak afternoon hours.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2026 | 83° | 63° | 73° | — | — |
| 2025 | 73° | 65° | 69° | — | — |
| 2024coldest | 71° | 49° | 60° | — | — |
| 2023 | 89° | 67° | 78° | — | — |
| 2022 | 81° | 66° | 73° | 0.09" | — |
| 2021 | 88° | 67° | 77° | — | — |
| 2020 | 79° | 56° | 67° | — | — |
| 2019 | 86° | 68° | 77° | 0.05" | — |
| 2018 | 80° | 68° | 74° | 1.61" | — |
| 2017 | 89° | 62° | 76° | — | — |
| 2016 | 79° | 61° | 70° | 1.66" | — |
| 2015 | 82° | 53° | 68° | — | — |
| 2014 | 81° | 64° | 72° | 0.01" | — |
| 2013 | 88° | 66° | 77° | — | — |
| 2012 | 77° | 54° | 65° | 0.27" | — |
| 2011 | 86° | 66° | 76° | — | — |
| 2010 | 91° | 69° | 80° | 0.1" | — |
| 2009 | 81° | 65° | 73° | — | — |
| 2008 | 85° | 62° | 73° | — | — |
| 2007 | 89° | 72° | 80° | 1.38" | — |
| 2006 | 77° | 57° | 67° | — | — |
| 2003 | 87° | 63° | 75° | — | — |
| 2002 | 80° | 63° | 71° | — | — |
| 2001 | 82° | 61° | 71° | — | — |
| 2000 | 72° | 51° | 61° | — | — |
| 1999 | 79° | 53° | 66° | — | — |
| 1997 | 74° | 57° | 65° | 0.03" | — |
| 1996 | 89° | 66° | 78° | — | — |
| 1995 | 87° | 71° | 79° | — | — |
| 1994 | 87° | 59° | 73° | 0.43" | — |
| 1993 | 83° | 58° | 70° | — | — |
| 1992 | 75° | 51° | 63° | — | — |
| 1991 | 77° | 57° | 67° | — | — |
| 1990 | 86° | 68° | 77° | 1" | — |
| 1989 | 81° | 64° | 72° | 0.08" | — |
| 1988 | 83° | 57° | 70° | — | — |
| 1987 | 88° | 62° | 75° | — | — |
| 1986 | 84° | 64° | 74° | — | — |
| 1985 | 75° | 56° | 65° | — | — |
| 1984 | 81° | 57° | 69° | — | — |
| 1983warmest | 98° | 69° | 84° | — | — |
| 1982 | 85° | 55° | 70° | 0.56" | — |
| 1981 | 82° | 58° | 70° | — | — |
| 1980 | 93° | 70° | 81° | — | — |
| 1979 | 86° | 64° | 75° | 0.29" | — |
| 1978 | 75° | 48° | 62° | — | — |
| 1977 | 77° | 62° | 70° | — | — |
| 1976 | 84° | 54° | 69° | — | — |
| 1975 | 89° | 70° | 79° | — | — |
| 1974 | 87° | 60° | 74° | — | — |
| 1973 | 84° | 53° | 69° | — | — |
| 1972 | 89° | 64° | 77° | — | — |
| 1971 | 86° | 69° | 78° | — | — |
Carmel, IN Temperature Range by Month
Average monthly highs and lows. The shaded band shows the typical daily temperature range.
Carmel, IN Monthly Precipitation
Average rainfall and snowfall per month, in inches.
Carmel, IN Daily Temperature Calendar
Average daily high temperature for every day of the year. Each cell is the climatological mean for that calendar day across 55 years of NOAA data.
Best Time to Visit Carmel, IN
Most pleasant months in Carmel, IN: May, June, September, October.
What to expect on August 21st
This page shows what actually happened each year. For the odds — typical high and low, and how often it stays dry — see the climatological outlook for this date.
August 21st outlook →