April is one of the cooler months of the year in Twin Falls, with average highs near 14.5°C and lows around 0.9°C (mean 7.7°C). It is about average for rainfall, averaging 34 mm of rainfall and 58% relative humidity across the period.
April is one of the cooler months of the year in Twin Falls. Across 45 years of records, the warmest April in Twin Falls was 1987 — when the month averaged 12°C — while the coldest was 2011 at 4.1°C. Typical April days reach 14.5°C with nights near 0.9°C. The long-term April temperature trend is broadly flat.
April is about average for rainfall in Twin Falls, averaging 34 mm of rainfall. The wettest April on record was 2005 with 70 mm, while the driest was 1985 at 6 mm.
Relative humidity in Twin Falls during April averages 58%. The most humid April was 2017 at 68%, and the least humid was 1987 at 44%.
April receives about 5.6 kWh/m²/day of solar energy in Twin Falls. The sunniest April was 2021 at 6.4 kWh/m²/day, and the cloudiest was 2011 at 4.8.
Average wind speed in Twin Falls during April is 3.1 m/s. The windiest April was 2010 at 3.8 m/s, while the calmest were 1989, 2004 and 2025, among others at 2.7 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 8.0°C | 7.5°C | 8.0°C | 7.5°C | 7.8°C | -0.2°C |
| Avg High | 15.1°C | 14.1°C | 14.8°C | 14.2°C | 14.8°C | -0.3°C |
| Avg Low | 0.9°C | 0.9°C | 1.1°C | 0.9°C | 0.7°C | -0.2°C |
| Avg Rain | 23 mm | 37 mm | 43 mm | 44 mm | 17 mm | -6 mm |
April temperatures in Twin Falls have risen by about 0.7°C between 1981–1985 and 2021–2025.
April has ranged from a record low of -7.3°C (1999) to a record high of 30.9°C (2012).
Rainfall in April is about average for rainfall, averaging 34 mm, with a wettest year of 70 mm.
A good time to visit Twin Falls
April is a good time to visit Twin Falls, with days averaging 14.5°C and nights around 0.9°C (mean 7.7°C, cooler than Twin Falls's yearly average) and moderate rainfall. August and July 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 | 16.2°C | 9.1°C | 2.0°C | 25.9°C | -4.8°C | 7 mm | 55% | 2.7 m/s | 6.1 |
| 2024 | 15.2°C | 8.3°C | 1.3°C | 24.4°C | -4.2°C | 17 mm | 60% | 3.2 m/s | 6 |
| 2023 | 13.4°C | 6.5°C | -0.5°C | 29.4°C | -5.9°C | 14 mm | 59% | 3.2 m/s | 5.4 |
| 2022 | 12.9°C | 6.1°C | -0.7°C | 26.0°C | -5.9°C | 31 mm | 54% | 3.5 m/s | 5.4 |
| 2021 | 15.7°C | 8.1°C | 0.5°C | 30.0°C | -5.0°C | 9 mm | 47% | 3.2 m/s | 6.4 |
| 2020 | 15.5°C | 8.4°C | 1.3°C | 29.7°C | -5.2°C | 21 mm | 54% | 3 m/s | 6.2 |
| 2019 | 15.1°C | 8.7°C | 2.3°C | 25.6°C | -3.1°C | 44 mm | 65% | 3.2 m/s | 5.1 |
| 2018 | 14.7°C | 8.1°C | 1.5°C | 28.6°C | -5.7°C | 32 mm | 60% | 3.6 m/s | 5.5 |
| 2017 | 12.6°C | 6.3°C | 0.1°C | 20.0°C | -4.4°C | 64 mm | 68% | 3.3 m/s | 5.3 |
| 2016 | 16.3°C | 9.7°C | 3.1°C | 25.9°C | -1.9°C | 62 mm | 63% | 2.8 m/s | 5.8 |
| 2015 | 15.5°C | 8.3°C | 1.2°C | 24.9°C | -3.8°C | 17 mm | 51% | 3.1 m/s | 6.2 |
| 2014 | 14.3°C | 7.4°C | 0.6°C | 23.9°C | -3.2°C | 44 mm | 58% | 3 m/s | 5.8 |
| 2013 | 13.0°C | 6.6°C | 0.2°C | 23.6°C | -4.8°C | 37 mm | 58% | 3.2 m/s | 5.9 |
| 2012 | 16.9°C | 9.6°C | 2.4°C | 30.9°C | -4.4°C | 28 mm | 55% | 3.2 m/s | 5.8 |
| 2011 ❄️ | 10.1°C | 4.1°C | -1.9°C | 18.5°C | -5.5°C | 62 mm | 68% | 3.3 m/s | 4.8 |
| 2010 | 13.1°C | 6.4°C | -0.3°C | 26.1°C | -5.6°C | 54 mm | 58% | 3.8 m/s | 5 |
| 2009 | 13.2°C | 6.8°C | 0.4°C | 24.9°C | -4.8°C | 56 mm | 62% | 3 m/s | 5.5 |
| 2008 | 11.7°C | 4.9°C | -1.9°C | 24.6°C | -6.4°C | 20 mm | 54% | 3.4 m/s | 5.8 |
| 2007 | 15.8°C | 9.0°C | 2.1°C | 29.6°C | -5.3°C | 37 mm | 56% | 3 m/s | 5.6 |
| 2006 | 14.7°C | 8.1°C | 1.5°C | 22.5°C | -5.8°C | 59 mm | 64% | 2.9 m/s | 5.3 |
| 2005 🌧️ | 14.9°C | 7.8°C | 0.6°C | 22.6°C | -4.6°C | 70 mm | 60% | 3 m/s | 5.1 |
| 2004 | 16.4°C | 9.6°C | 2.8°C | 26.3°C | -1.2°C | 35 mm | 55% | 2.7 m/s | 5.7 |
| 2003 | 13.5°C | 7.3°C | 1.1°C | 24.6°C | -4.4°C | 56 mm | 58% | 2.9 m/s | 4.9 |
| 2002 | 15.0°C | 8.1°C | 1.2°C | 24.3°C | -3.6°C | 37 mm | 56% | 2.9 m/s | 5.6 |
| 2001 | 14.4°C | 7.4°C | 0.3°C | 28.2°C | -5.7°C | 36 mm | 54% | 2.9 m/s | 5.6 |
| 2000 | 18.0°C | 10.5°C | 3.0°C | 28.3°C | -1.7°C | 21 mm | 52% | 3 m/s | 5.8 |
| 1999 | 12.1°C | 5.9°C | -0.4°C | 24.2°C | -7.3°C | 51 mm | 59% | 3 m/s | 5.2 |
| 1998 | 13.4°C | 7.0°C | 0.6°C | 26.3°C | -4.7°C | 24 mm | 59% | 2.8 m/s | 5.8 |
| 1997 | 11.8°C | 5.8°C | -0.2°C | 22.4°C | -5.8°C | 38 mm | 65% | 2.9 m/s | 5.4 |
| 1996 | 13.8°C | 7.1°C | 0.5°C | 26.1°C | -4.3°C | 27 mm | 59% | 3.3 m/s | 5.8 |
| 1995 | 13.0°C | 6.6°C | 0.2°C | 21.5°C | -5.8°C | 34 mm | 62% | 3.5 m/s | 5.6 |
| 1994 | 15.7°C | 9.2°C | 2.6°C | 28.6°C | -3.9°C | 49 mm | 55% | 2.9 m/s | 5 |
| 1993 | 12.0°C | 5.8°C | -0.4°C | 19.5°C | -4.1°C | 38 mm | 66% | 3.3 m/s | 5.2 |
| 1992 | 18.5°C | 10.9°C | 3.2°C | 30.6°C | -3.6°C | 24 mm | 49% | 3 m/s | 5.8 |
| 1991 | 12.2°C | 5.9°C | -0.5°C | 22.8°C | -6.1°C | 43 mm | 58% | 3.3 m/s | 5.2 |
| 1990 | 18.0°C | 11.0°C | 3.9°C | 26.3°C | -3.1°C | 45 mm | 52% | 3 m/s | 5.6 |
| 1989 | 16.0°C | 9.0°C | 2.0°C | 26.0°C | -4.2°C | 12 mm | 58% | 2.7 m/s | 6 |
| 1988 | 17.2°C | 9.5°C | 1.7°C | 27.5°C | -4.6°C | 29 mm | 51% | 3.1 m/s | 5.4 |
| 1987 🔥 | 20.3°C | 12.0°C | 3.7°C | 29.2°C | -3.5°C | 14 mm | 44% | 3.1 m/s | 6.2 |
| 1986 | 13.7°C | 7.2°C | 0.6°C | 25.3°C | -3.4°C | 31 mm | 62% | 3.4 m/s | 5.8 |
| 1985 | 17.4°C | 9.8°C | 2.2°C | 26.9°C | -5.4°C | 6 mm | 51% | 2.9 m/s | 6.1 |
| 1984 | 12.1°C | 5.5°C | -1.1°C | 26.3°C | -4.6°C | 22 mm | 63% | 3.5 m/s | 5 |
| 1983 | 10.9°C | 4.9°C | -1.0°C | 18.8°C | -6.0°C | 32 mm | 62% | 2.7 m/s | — |
| 1982 | 11.7°C | 5.0°C | -1.6°C | 23.3°C | -6.2°C | 17 mm | 58% | 3 m/s | — |
| 1981 | 16.4°C | 9.2°C | 2.0°C | 27.5°C | -4.3°C | 41 mm | 54% | 3.2 m/s | — |
Actual recorded April data for each year, 1981–2025 — sourced from NASA POWER.
The average high in April is around 14.5°C with lows near 0.9°C (mean 7.7°C), based on 45 years of NASA POWER data.
April averages 34 mm of rainfall in Twin Falls, about average for rainfall. The wettest on record was 70 mm in 2005.
The hottest April reached 30.9°C in 2012. The coldest dipped to -7.3°C in 1999.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average April temperatures have risen by about 0.7°C. Daytime highs moved from 13.7°C to 14.7°C and overnight lows from 0.1°C to 0.5°C over the same span.
April is one of the cooler months of the year in Twin Falls and about average for rainfall, so plan for around 14.5°C daytime highs and 0.9°C at night.
Not quite — April is the 6th coolest month in Twin Falls, averaging 7.7°C.
For April in Twin Falls, pack warm layers and a jacket for chilly mornings, with typical highs of 14.5°C and lows of 0.9°C.
Relative humidity in April averages 58% — moderately humid.
Average wind speed in April is 3.1 m/s. The windiest April on record averaged 3.8 m/s (2010).
The wettest April on record was 2005 with 70 mm. On average, April sees 34 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 Twin Falls 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.
