June is one of the warmer months of the year in Marietta, with average highs near 30.2°C and lows around 18.8°C (mean 24.5°C). It is about average for rainfall, averaging 105 mm of rainfall and 73% relative humidity across the period.
June is one of the warmer months of the year in Marietta. Across 45 years of records, the warmest June in Marietta was 2011 — when the month averaged 27.1°C — while the coldest was 1997 at 21.5°C. Typical June days reach 30.2°C with nights near 18.8°C. The long-term trend is warming, about 0.3°C per decade.
June is about average for rainfall in Marietta, averaging 105 mm of rainfall. The wettest June on record was 1989 with 242 mm, while the driest was 1988 at 29 mm.
Relative humidity in Marietta during June averages 73%. The most humid June was 1997 at 85%, and the least humid was 1988 at 50%.
June receives about 6.1 kWh/m²/day of solar energy in Marietta. The sunniest Junes were 2008, 2011 and 2024, among others at 6.8 kWh/m²/day, and the cloudiest was 1997 at 5.
Average wind speed in Marietta during June is 0.9 m/s. The windiest June was 1998 at 1.1 m/s, while the calmest were 2017, 2018 and 2025, among others at 0.8 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 24.3°C | 23.7°C | 24.8°C | 25.1°C | 24.7°C | +0.4°C |
| Avg High | 30.2°C | 29.1°C | 30.8°C | 30.6°C | 30.5°C | +0.3°C |
| Avg Low | 18.4°C | 18.3°C | 18.7°C | 19.6°C | 18.8°C | +0.4°C |
| Avg Rain | 98 mm | 112 mm | 106 mm | 109 mm | 97 mm | -2 mm |
June temperatures in Marietta have risen by about 1°C between 1981–1985 and 2021–2025.
June has ranged from a record low of 8.2°C (1984) to a record high of 42.1°C (2012).
Rainfall in June is about average for rainfall, averaging 105 mm, with a wettest year of 242 mm.
One of the best times to visit Marietta
June is one of the best times to visit Marietta. Expect days averaging 30.2°C and nights around 18.8°C (mean 24.5°C) — warmer than Marietta's yearly average — with higher rainfall (105 mm), so conditions are generally comfortable for sightseeing and outdoor plans.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | 29.9°C | 24.8°C | 19.7°C | 36.1°C | 14.3°C | 128 mm | 78% | 0.8 m/s | 6.2 |
| 2024 | 32.6°C | 26.1°C | 19.5°C | 38.5°C | 14.6°C | 42 mm | 65% | 1 m/s | 6.8 |
| 2023 | 28.5°C | 22.8°C | 17.0°C | 33.7°C | 12.2°C | 119 mm | 77% | 0.9 m/s | 6.1 |
| 2022 | 33.6°C | 26.7°C | 19.7°C | 39.1°C | 15.1°C | 68 mm | 61% | 0.9 m/s | 6.6 |
| 2021 | 29.6°C | 24.1°C | 18.6°C | 34.0°C | 13.1°C | 133 mm | 75% | 1 m/s | 5.8 |
| 2020 | 28.7°C | 23.6°C | 18.4°C | 33.1°C | 12.7°C | 89 mm | 79% | 1 m/s | 5.9 |
| 2019 | 29.3°C | 24.2°C | 19.1°C | 32.6°C | 11.8°C | 144 mm | 78% | 1 m/s | 5.8 |
| 2018 | 30.5°C | 25.3°C | 20.1°C | 33.6°C | 13.7°C | 133 mm | 79% | 0.8 m/s | 6.5 |
| 2017 | 28.2°C | 23.4°C | 18.6°C | 31.2°C | 13.2°C | 178 mm | 80% | 0.8 m/s | 5.5 |
| 2016 | 33.3°C | 26.7°C | 20.1°C | 38.4°C | 14.4°C | 64 mm | 64% | 0.9 m/s | 6.6 |
| 2015 | 31.2°C | 25.6°C | 20.0°C | 36.1°C | 15.5°C | 77 mm | 73% | 0.8 m/s | 6.6 |
| 2014 | 28.9°C | 24.2°C | 19.6°C | 31.7°C | 15.8°C | 101 mm | 80% | 0.8 m/s | 6 |
| 2013 | 28.4°C | 23.7°C | 19.0°C | 32.2°C | 16.0°C | 169 mm | 84% | 0.9 m/s | 5.9 |
| 2012 | 31.7°C | 24.9°C | 18.0°C | 42.1°C | 11.2°C | 59 mm | 65% | 1 m/s | 6.6 |
| 2011 🔥 | 33.6°C | 27.1°C | 20.6°C | 35.8°C | 18.7°C | 85 mm | 67% | 0.9 m/s | 6.8 |
| 2010 | 31.2°C | 26.0°C | 20.9°C | 35.0°C | 15.8°C | 81 mm | 78% | 0.8 m/s | 6.5 |
| 2009 | 29.9°C | 24.8°C | 19.7°C | 33.4°C | 15.8°C | 50 mm | 79% | 0.9 m/s | 6.7 |
| 2008 | 33.1°C | 26.4°C | 19.7°C | 37.8°C | 13.9°C | 56 mm | 61% | 0.9 m/s | 6.8 |
| 2007 | 33.2°C | 26.2°C | 19.2°C | 37.0°C | 16.5°C | 74 mm | 58% | 0.9 m/s | 6.3 |
| 2006 | 32.5°C | 25.4°C | 18.4°C | 39.0°C | 12.3°C | 87 mm | 60% | 1 m/s | 6.8 |
| 2005 | 28.6°C | 23.7°C | 18.7°C | 33.4°C | 15.1°C | 127 mm | 81% | 0.9 m/s | 5.6 |
| 2004 | 30.7°C | 25.2°C | 19.7°C | 35.5°C | 13.4°C | 161 mm | 72% | 0.9 m/s | 5.1 |
| 2003 | 27.4°C | 22.5°C | 17.6°C | 30.4°C | 11.0°C | 206 mm | 82% | 0.9 m/s | 5.9 |
| 2002 | 31.5°C | 25.0°C | 18.6°C | 37.0°C | 14.0°C | 75 mm | 65% | 1 m/s | 6.3 |
| 2001 | 28.1°C | 22.8°C | 17.5°C | 31.1°C | 11.8°C | 155 mm | 79% | 0.9 m/s | 5.7 |
| 2000 | 32.6°C | 25.5°C | 18.4°C | 36.4°C | 10.2°C | 67 mm | 60% | 0.9 m/s | 6.3 |
| 1999 | 30.1°C | 24.2°C | 18.3°C | 35.8°C | 13.2°C | 151 mm | 72% | 1 m/s | 5.4 |
| 1998 | 30.8°C | 25.1°C | 19.5°C | 35.2°C | 8.9°C | 88 mm | 77% | 1.1 m/s | 6.6 |
| 1997 ❄️ | 25.9°C | 21.5°C | 17.0°C | 31.2°C | 10.0°C | 125 mm | 85% | 0.9 m/s | 5 |
| 1996 | 29.4°C | 23.7°C | 18.0°C | 35.7°C | 12.5°C | 78 mm | 73% | 0.9 m/s | 6.4 |
| 1995 | 29.0°C | 23.2°C | 17.5°C | 34.8°C | 10.2°C | 134 mm | 73% | 0.9 m/s | 5.9 |
| 1994 | 29.4°C | 24.5°C | 19.6°C | 33.3°C | 16.2°C | 178 mm | 80% | 0.9 m/s | 5.8 |
| 1993 | 29.9°C | 24.2°C | 18.5°C | 33.9°C | 12.9°C | 72 mm | 75% | 0.9 m/s | 6.3 |
| 1992 | 28.2°C | 22.8°C | 17.4°C | 33.5°C | 11.0°C | 130 mm | 76% | 0.9 m/s | 5.4 |
| 1991 | 27.4°C | 23.1°C | 18.7°C | 32.5°C | 12.2°C | 138 mm | 83% | 0.9 m/s | 5.7 |
| 1990 | 30.7°C | 24.3°C | 18.0°C | 36.0°C | 11.6°C | 29 mm | 70% | 0.9 m/s | 6.5 |
| 1989 🌧️ | 26.9°C | 22.9°C | 18.9°C | 30.4°C | 14.2°C | 242 mm | 84% | 1 m/s | 5.2 |
| 1988 | 33.9°C | 25.7°C | 17.6°C | 38.5°C | 9.9°C | 29 mm | 50% | 0.9 m/s | 6.2 |
| 1987 | 29.2°C | 24.0°C | 18.7°C | 34.3°C | 12.4°C | 141 mm | 76% | 0.8 m/s | 6 |
| 1986 | 33.5°C | 26.8°C | 20.1°C | 38.3°C | 16.9°C | 39 mm | 60% | 0.9 m/s | 6.2 |
| 1985 | 31.0°C | 24.7°C | 18.4°C | 36.6°C | 10.4°C | 99 mm | 66% | 0.9 m/s | 5.9 |
| 1984 | 29.7°C | 23.9°C | 18.1°C | 32.7°C | 8.2°C | 66 mm | 75% | 0.8 m/s | 6.5 |
| 1983 | 26.8°C | 21.8°C | 16.7°C | 30.8°C | 10.6°C | 96 mm | 79% | 0.9 m/s | — |
| 1982 | 28.2°C | 23.0°C | 17.7°C | 31.4°C | 13.1°C | 102 mm | 79% | 0.9 m/s | — |
| 1981 | 32.6°C | 26.2°C | 19.7°C | 38.1°C | 16.1°C | 72 mm | 67% | 1 m/s | — |
Actual recorded June data for each year, 1981–2025 — sourced from NASA POWER.
The average high in June is around 30.2°C with lows near 18.8°C (mean 24.5°C), based on 45 years of NASA POWER data.
June averages 105 mm of rainfall in Marietta, about average for rainfall. The wettest on record was 242 mm in 1989.
The hottest June reached 42.1°C in 2012. The coldest dipped to 8.2°C in 1984.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average June temperatures have risen by about 1°C. Daytime highs moved from 29.7°C to 30.8°C and overnight lows from 18.1°C to 18.9°C over the same span.
June is one of the warmer months of the year in Marietta and about average for rainfall, so plan for around 30.2°C daytime highs and 18.8°C at night.
Not quite — June is the 10th coolest month in Marietta, averaging 24.5°C.
For June in Marietta, pack light, breathable clothing and sun protection, with typical highs of 30.2°C and lows of 18.8°C. Bring an umbrella or light rain jacket too.
Relative humidity in June averages 73% — moderately humid.
Average wind speed in June is 0.9 m/s. The windiest June on record averaged 1.1 m/s (1998).
The wettest June on record was 1989 with 242 mm. On average, June sees 105 mm.
All figures are derived from NASA POWER (Prediction Of Worldwide Energy Resources), based on MERRA-2 satellite reanalysis, covering 1981–2025.
Explore how the weather in Marietta behaves each June, based on 45 years of NASA POWER climate data from 1981 to 2025. This page breaks down average temperatures, rainfall, humidity, wind and solar radiation for June specifically, along with year-by-year records and how the month has changed over the decades.
