April is one of the cooler months of the year in Hot Springs National Park, with average highs near 21.8°C and lows around 9.7°C (mean 15.8°C). It is a relatively wet time of year, averaging 145 mm of rainfall and 79% relative humidity across the period.
April is one of the cooler months of the year in Hot Springs National Park. Across 45 years of records, the warmest April in Hot Springs National Park was 1981 — when the month averaged 18.9°C — while the coldest was 1983 at 12.7°C. Typical April days reach 21.8°C with nights near 9.7°C. The long-term trend is warming, about 0.2°C per decade.
April is a relatively wet time of year in Hot Springs National Park, averaging 145 mm of rainfall. The wettest April on record was 2025 with 314 mm, while the driest was 1987 at 20 mm.
Relative humidity in Hot Springs National Park during April averages 79%. The most humid April was 1991 at 83%, and the least humid was 1996 at 72%.
April receives about 5.2 kWh/m²/day of solar energy in Hot Springs National Park. The sunniest April was 1987 at 6.2 kWh/m²/day, and the cloudiest was 1993 at 4.3.
Average wind speed in Hot Springs National Park during April is 0.2 m/s. The windiest Aprils were 2005, 2007 and 2010, among others at 0.3 m/s, while the calmest were 2023, 2024 and 2025, among others at 0.2 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 15.4°C | 15.3°C | 16.1°C | 16.3°C | 15.9°C | +0.5°C |
| Avg High | 21.7°C | 21.4°C | 22.1°C | 22.2°C | 21.8°C | +0.1°C |
| Avg Low | 9.1°C | 9.2°C | 10.1°C | 10.3°C | 10.1°C | +1°C |
| Avg Rain | 120 mm | 148 mm | 110 mm | 169 mm | 199 mm | +79 mm |
April temperatures in Hot Springs National Park have risen by about 0.9°C between 1981–1985 and 2021–2025.
April has ranged from a record low of -3.8°C (1987) to a record high of 32.7°C (2006).
Rainfall in April is a relatively wet time of year, averaging 145 mm, with a wettest year of 314 mm.
A good time to visit Hot Springs National Park
April is a good time to visit Hot Springs National Park, with days averaging 21.8°C and nights around 9.7°C (mean 15.8°C, close to Hot Springs National Park's yearly average) and higher rainfall. September and May 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 🌧️ | 23.9°C | 18.0°C | 12.2°C | 28.6°C | 2.8°C | 314 mm | 82% | 0.2 m/s | 4.8 |
| 2024 | 22.4°C | 17.1°C | 11.9°C | 28.8°C | 2.7°C | 151 mm | 82% | 0.2 m/s | 4.8 |
| 2023 | 20.9°C | 15.1°C | 9.3°C | 27.5°C | 3.7°C | 170 mm | 79% | 0.2 m/s | 5.1 |
| 2022 | 21.9°C | 15.7°C | 9.5°C | 27.1°C | -0.5°C | 231 mm | 79% | 0.2 m/s | 5 |
| 2021 | 20.5°C | 14.5°C | 8.5°C | 27.7°C | -0.9°C | 132 mm | 81% | 0.2 m/s | 5.1 |
| 2020 | 20.9°C | 15.2°C | 9.4°C | 29.4°C | 0.0°C | 197 mm | 81% | 0.2 m/s | 5.1 |
| 2019 | 21.7°C | 16.1°C | 10.5°C | 30.2°C | -0.3°C | 257 mm | 83% | 0.2 m/s | 4.9 |
| 2018 | 19.7°C | 13.1°C | 6.5°C | 28.8°C | -2.7°C | 156 mm | 78% | 0.2 m/s | 5.3 |
| 2017 | 23.9°C | 17.9°C | 11.9°C | 28.0°C | 3.3°C | 243 mm | 81% | 0.2 m/s | 4.9 |
| 2016 | 22.8°C | 17.1°C | 11.4°C | 27.9°C | 2.9°C | 180 mm | 81% | 0.2 m/s | 5 |
| 2015 | 22.2°C | 16.8°C | 11.4°C | 27.1°C | 5.1°C | 171 mm | 83% | 0.2 m/s | 4.6 |
| 2014 | 20.9°C | 14.9°C | 8.9°C | 27.2°C | -1.6°C | 125 mm | 80% | 0.2 m/s | 4.9 |
| 2013 | 20.7°C | 14.4°C | 8.1°C | 28.9°C | 2.4°C | 110 mm | 81% | 0.2 m/s | 5.1 |
| 2012 | 23.5°C | 17.9°C | 12.2°C | 28.3°C | 5.7°C | 79 mm | 81% | 0.2 m/s | 5.4 |
| 2011 | 24.2°C | 17.5°C | 10.9°C | 30.2°C | 0.5°C | 283 mm | 76% | 0.2 m/s | 5 |
| 2010 | 22.8°C | 16.8°C | 10.9°C | 27.5°C | 5.5°C | 86 mm | 78% | 0.3 m/s | 5.6 |
| 2009 | 20.7°C | 14.8°C | 9.0°C | 28.4°C | -2.3°C | 148 mm | 81% | 0.2 m/s | 5.2 |
| 2008 | 20.6°C | 14.5°C | 8.5°C | 27.8°C | -0.5°C | 215 mm | 82% | 0.2 m/s | 5.3 |
| 2007 | 19.8°C | 13.9°C | 7.9°C | 28.2°C | -3.1°C | 115 mm | 76% | 0.3 m/s | 5.5 |
| 2006 | 25.0°C | 18.7°C | 12.3°C | 32.7°C | 2.7°C | 129 mm | 79% | 0.2 m/s | 5.5 |
| 2005 | 21.4°C | 15.5°C | 9.6°C | 26.2°C | 2.5°C | 75 mm | 78% | 0.3 m/s | 5.6 |
| 2004 | 21.7°C | 16.0°C | 10.2°C | 26.6°C | 3.0°C | 137 mm | 81% | 0.2 m/s | 5.2 |
| 2003 | 22.8°C | 16.2°C | 9.7°C | 28.7°C | -0.2°C | 63 mm | 77% | 0.3 m/s | 5.7 |
| 2002 | 23.3°C | 17.7°C | 12.1°C | 30.2°C | 1.2°C | 74 mm | 82% | 0.2 m/s | 4.8 |
| 2001 | 23.9°C | 18.3°C | 12.7°C | 29.5°C | 1.6°C | 67 mm | 79% | 0.2 m/s | 5 |
| 2000 | 21.8°C | 15.3°C | 8.7°C | 28.3°C | 2.3°C | 78 mm | 74% | 0.3 m/s | 4.9 |
| 1999 | 22.9°C | 17.2°C | 11.6°C | 29.5°C | 1.4°C | 159 mm | 82% | 0.2 m/s | 4.8 |
| 1998 | 21.1°C | 14.8°C | 8.5°C | 26.8°C | 3.0°C | 64 mm | 78% | 0.3 m/s | 6 |
| 1997 | 19.1°C | 13.2°C | 7.2°C | 26.1°C | -2.3°C | 220 mm | 80% | 0.3 m/s | 5.3 |
| 1996 | 21.4°C | 14.3°C | 7.1°C | 28.5°C | 0.4°C | 102 mm | 72% | 0.3 m/s | 5.7 |
| 1995 | 21.8°C | 15.5°C | 9.2°C | 26.8°C | 2.9°C | 142 mm | 79% | 0.3 m/s | 5.1 |
| 1994 | 23.1°C | 16.7°C | 10.2°C | 30.6°C | -1.4°C | 101 mm | 80% | 0.3 m/s | 5.3 |
| 1993 | 19.1°C | 13.5°C | 8.0°C | 26.2°C | -0.5°C | 162 mm | 82% | 0.2 m/s | 4.3 |
| 1992 | 21.8°C | 15.7°C | 9.7°C | 27.7°C | -1.2°C | 63 mm | 80% | 0.2 m/s | 5.5 |
| 1991 | 23.0°C | 17.5°C | 12.0°C | 27.8°C | 4.3°C | 280 mm | 83% | 0.2 m/s | 4.8 |
| 1990 | 21.1°C | 15.0°C | 8.8°C | 29.1°C | -1.4°C | 187 mm | 81% | 0.2 m/s | 4.8 |
| 1989 | 21.6°C | 15.5°C | 9.3°C | 28.7°C | -3.8°C | 72 mm | 79% | 0.2 m/s | 5.7 |
| 1988 | 22.1°C | 15.2°C | 8.4°C | 28.0°C | 2.3°C | 110 mm | 77% | 0.3 m/s | 5.5 |
| 1987 | 22.6°C | 15.3°C | 8.0°C | 32.5°C | -3.8°C | 20 mm | 73% | 0.3 m/s | 6.2 |
| 1986 | 22.1°C | 16.2°C | 10.3°C | 26.7°C | 3.0°C | 217 mm | 80% | 0.2 m/s | 5.3 |
| 1985 | 22.4°C | 16.5°C | 10.5°C | 27.9°C | 0.2°C | 189 mm | 81% | 0.2 m/s | 5.1 |
| 1984 | 20.2°C | 14.2°C | 8.3°C | 28.4°C | 2.5°C | 78 mm | 80% | 0.2 m/s | 5 |
| 1983 ❄️ | 18.7°C | 12.7°C | 6.7°C | 26.7°C | -0.9°C | 146 mm | 82% | 0.2 m/s | — |
| 1982 | 19.7°C | 13.7°C | 7.7°C | 25.6°C | -0.8°C | 165 mm | 79% | 0.2 m/s | — |
| 1981 🔥 | 25.5°C | 18.9°C | 12.4°C | 30.7°C | 3.4°C | 80 mm | 75% | 0.2 m/s | — |
Actual recorded April data for each year, 1981–2025 — sourced from NASA POWER.
The average high in April is around 21.8°C with lows near 9.7°C (mean 15.8°C), based on 45 years of NASA POWER data.
April averages 145 mm of rainfall in Hot Springs National Park, a relatively wet time of year. The wettest on record was 314 mm in 2025.
The hottest April reached 32.7°C in 2006. The coldest dipped to -3.8°C in 1987.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average April temperatures have risen by about 0.9°C. Daytime highs moved from 21.3°C to 21.9°C and overnight lows from 9.1°C to 10.3°C over the same span.
April is one of the cooler months of the year in Hot Springs National Park and a relatively wet time of year, so plan for around 21.8°C daytime highs and 9.7°C at night.
Not quite — April is the 6th coolest month in Hot Springs National Park, averaging 15.8°C.
For April in Hot Springs National Park, pack light layers you can adjust through the day, with typical highs of 21.8°C and lows of 9.7°C. Bring an umbrella or light rain jacket too.
Relative humidity in April averages 79% — quite humid.
Average wind speed in April is 0.2 m/s. The windiest April on record averaged 0.3 m/s (1987).
The wettest April on record was 2025 with 314 mm. On average, April sees 145 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 Hot Springs National Park 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.
