April is one of the cooler months of the year in Gallatin, with average highs near 19.4°C and lows around 7.8°C (mean 13.6°C). It is about average for rainfall, averaging 117 mm of rainfall and 79% relative humidity across the period.
April is one of the cooler months of the year in Gallatin. Across 45 years of records, the warmest April in Gallatin was 2017 — when the month averaged 16.9°C — while the coldest was 2018 at 10.2°C. Typical April days reach 19.4°C with nights near 7.8°C. The long-term trend is warming, about 0.4°C per decade.
April is about average for rainfall in Gallatin, averaging 117 mm of rainfall. The wettest April on record was 2011 with 252 mm, while the driest was 1986 at 30 mm.
Relative humidity in Gallatin during April averages 79%. The most humid April was 1994 at 84%, and the least humid was 1986 at 73%.
April receives about 5.1 kWh/m²/day of solar energy in Gallatin. The sunniest April was 2010 at 5.8 kWh/m²/day, and the cloudiest was 1984 at 3.9.
Average wind speed in Gallatin during April is 2.1 m/s. The windiest April was 2011 at 2.8 m/s, while the calmest was 1989 at 1.8 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 12.9°C | 13.0°C | 14.0°C | 14.4°C | 13.8°C | +0.9°C |
| Avg High | 18.8°C | 18.9°C | 19.7°C | 20.3°C | 19.6°C | +0.8°C |
| Avg Low | 7.0°C | 7.2°C | 8.3°C | 8.6°C | 8.1°C | +1.1°C |
| Avg Rain | 102 mm | 98 mm | 124 mm | 138 mm | 123 mm | +22 mm |
April temperatures in Gallatin have risen by about 1.2°C between 1981–1985 and 2021–2025.
April has ranged from a record low of -6.2°C (1990) to a record high of 28.6°C (2017).
Rainfall in April is about average for rainfall, averaging 117 mm, with a wettest year of 252 mm.
A good time to visit Gallatin
April is a good time to visit Gallatin, with days averaging 19.4°C and nights around 7.8°C (mean 13.6°C, close to Gallatin's yearly average) and higher rainfall. September and June are marginally more temperate, but April still suits most travellers.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | 21.3°C | 15.8°C | 10.4°C | 27.5°C | -1.0°C | 206 mm | 81% | 2.1 m/s | 5.2 |
| 2024 | 20.9°C | 15.3°C | 9.8°C | 26.9°C | -0.3°C | 112 mm | 78% | 2.3 m/s | 5.1 |
| 2023 | 19.5°C | 13.5°C | 7.5°C | 26.3°C | 1.3°C | 88 mm | 76% | 1.9 m/s | 5.5 |
| 2022 | 18.6°C | 13.0°C | 7.3°C | 25.8°C | -0.4°C | 135 mm | 78% | 2.1 m/s | 4.9 |
| 2021 | 18.7°C | 12.9°C | 7.1°C | 25.3°C | -4.3°C | 65 mm | 79% | 1.9 m/s | 5.6 |
| 2020 | 18.3°C | 12.4°C | 6.6°C | 25.4°C | -1.2°C | 135 mm | 79% | 2 m/s | 5.2 |
| 2019 | 20.6°C | 14.8°C | 8.9°C | 26.2°C | -4.1°C | 145 mm | 81% | 2 m/s | 5.2 |
| 2018 ❄️ | 15.9°C | 10.2°C | 4.5°C | 23.1°C | -3.5°C | 126 mm | 82% | 2.1 m/s | 4.9 |
| 2017 🔥 | 22.3°C | 16.9°C | 11.4°C | 28.6°C | 2.3°C | 137 mm | 80% | 2.2 m/s | 5.1 |
| 2016 | 20.3°C | 14.4°C | 8.5°C | 26.6°C | -1.3°C | 55 mm | 78% | 2 m/s | 5.6 |
| 2015 | 20.0°C | 14.5°C | 8.9°C | 25.2°C | 0.0°C | 169 mm | 82% | 2 m/s | 4.8 |
| 2014 | 20.5°C | 14.2°C | 8.0°C | 24.8°C | -2.6°C | 169 mm | 79% | 2.2 m/s | 5.4 |
| 2013 | 19.0°C | 13.2°C | 7.4°C | 26.9°C | -1.7°C | 196 mm | 81% | 2.1 m/s | 5 |
| 2012 | 21.1°C | 15.2°C | 9.3°C | 27.5°C | 0.7°C | 54 mm | 76% | 2 m/s | 5.7 |
| 2011 🌧️ | 20.8°C | 15.2°C | 9.5°C | 27.6°C | -0.5°C | 252 mm | 82% | 2.8 m/s | 4.9 |
| 2010 | 22.0°C | 15.7°C | 9.5°C | 27.5°C | 2.8°C | 81 mm | 75% | 2 m/s | 5.8 |
| 2009 | 19.1°C | 13.6°C | 8.0°C | 27.1°C | -0.6°C | 129 mm | 81% | 2.3 m/s | 4.9 |
| 2008 | 18.7°C | 12.9°C | 7.2°C | 25.7°C | -0.5°C | 152 mm | 82% | 2 m/s | 5 |
| 2007 | 17.9°C | 12.1°C | 6.2°C | 27.7°C | -5.8°C | 94 mm | 75% | 2.1 m/s | 5.5 |
| 2006 | 21.8°C | 16.2°C | 10.5°C | 28.0°C | -0.4°C | 132 mm | 80% | 2.1 m/s | 5 |
| 2005 | 19.4°C | 13.9°C | 8.5°C | 25.1°C | 1.1°C | 162 mm | 81% | 2.1 m/s | 4.8 |
| 2004 | 19.1°C | 13.5°C | 8.0°C | 25.3°C | -1.2°C | 157 mm | 80% | 2.2 m/s | 5.3 |
| 2003 | 20.1°C | 14.4°C | 8.8°C | 26.0°C | 1.0°C | 117 mm | 83% | 2.2 m/s | 5.3 |
| 2002 | 20.8°C | 15.0°C | 9.2°C | 27.7°C | -1.7°C | 87 mm | 82% | 2.2 m/s | 5.3 |
| 2001 | 21.2°C | 15.8°C | 10.3°C | 26.6°C | -2.5°C | 57 mm | 77% | 2.3 m/s | 5.5 |
| 2000 | 18.4°C | 12.5°C | 6.5°C | 24.1°C | -3.0°C | 155 mm | 78% | 2.2 m/s | 4.5 |
| 1999 | 20.6°C | 15.0°C | 9.3°C | 26.9°C | 1.8°C | 74 mm | 82% | 2.2 m/s | 4.7 |
| 1998 | 18.4°C | 12.9°C | 7.5°C | 24.5°C | 1.4°C | 185 mm | 82% | 2.2 m/s | 4.3 |
| 1997 | 16.8°C | 10.6°C | 4.4°C | 23.9°C | -2.6°C | 77 mm | 76% | 1.9 m/s | 5.4 |
| 1996 | 17.5°C | 10.9°C | 4.4°C | 24.1°C | -3.3°C | 119 mm | 79% | 2.5 m/s | 5.1 |
| 1995 | 20.2°C | 14.1°C | 8.0°C | 27.5°C | -2.5°C | 98 mm | 75% | 2.1 m/s | 5.4 |
| 1994 | 20.4°C | 14.6°C | 8.8°C | 25.4°C | -0.5°C | 171 mm | 84% | 2.2 m/s | 5.2 |
| 1993 | 17.5°C | 11.7°C | 5.9°C | 23.6°C | -0.9°C | 76 mm | 79% | 2.3 m/s | 4.7 |
| 1992 | 18.6°C | 13.0°C | 7.5°C | 25.7°C | -2.8°C | 40 mm | 81% | 2 m/s | 5.2 |
| 1991 | 20.6°C | 15.4°C | 10.2°C | 25.3°C | 2.0°C | 90 mm | 83% | 2 m/s | 4.7 |
| 1990 | 18.0°C | 11.9°C | 5.8°C | 26.3°C | -6.2°C | 56 mm | 79% | 2 m/s | 5.2 |
| 1989 | 18.0°C | 12.7°C | 7.3°C | 27.1°C | -3.8°C | 79 mm | 81% | 1.8 m/s | 5.4 |
| 1988 | 19.1°C | 12.8°C | 6.6°C | 26.1°C | -0.6°C | 62 mm | 76% | 2.2 m/s | 5.5 |
| 1987 | 18.4°C | 12.2°C | 5.9°C | 26.6°C | -4.2°C | 63 mm | 79% | 1.9 m/s | 5.4 |
| 1986 | 20.6°C | 14.0°C | 7.5°C | 27.5°C | -2.2°C | 30 mm | 73% | 1.9 m/s | 5.5 |
| 1985 | 20.7°C | 14.8°C | 8.9°C | 27.1°C | -3.7°C | 76 mm | 78% | 2 m/s | 5.4 |
| 1984 | 17.8°C | 12.6°C | 7.3°C | 26.6°C | -1.8°C | 161 mm | 83% | 2.2 m/s | 3.9 |
| 1983 | 16.1°C | 10.8°C | 5.4°C | 23.3°C | -5.1°C | 196 mm | 81% | 2.3 m/s | — |
| 1982 | 16.7°C | 10.6°C | 4.6°C | 24.8°C | -5.4°C | 129 mm | 79% | 2.2 m/s | — |
| 1981 | 21.9°C | 15.8°C | 9.7°C | 26.8°C | 2.0°C | 121 mm | 77% | 2.3 m/s | — |
Actual recorded April data for each year, 1981–2025 — sourced from NASA POWER.
The average high in April is around 19.4°C with lows near 7.8°C (mean 13.6°C), based on 45 years of NASA POWER data.
April averages 117 mm of rainfall in Gallatin, about average for rainfall. The wettest on record was 252 mm in 2011.
The hottest April reached 28.6°C in 2017. The coldest dipped to -6.2°C in 1990.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average April temperatures have risen by about 1.2°C. Daytime highs moved from 18.6°C to 19.8°C and overnight lows from 7.2°C to 8.4°C over the same span.
April is one of the cooler months of the year in Gallatin and about average for rainfall, so plan for around 19.4°C daytime highs and 7.8°C at night.
Not quite — April is the 6th coolest month in Gallatin, averaging 13.6°C.
For April in Gallatin, pack warm layers and a jacket for chilly mornings, with typical highs of 19.4°C and lows of 7.8°C. Bring an umbrella or light rain jacket too.
Relative humidity in April averages 79% — quite humid.
Average wind speed in April is 2.1 m/s. The windiest April on record averaged 2.8 m/s (2011).
The wettest April on record was 2011 with 252 mm. On average, April sees 117 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 Gallatin behaves each April, 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 April specifically, along with year-by-year records and how the month has changed over the decades.
