April is close to Kelso's year-round average, with average highs near 19.6°C and lows around 8.5°C (mean 14.1°C). It is one of the drier months, averaging 46 mm of rainfall and 70% relative humidity across the period.
April is close to Kelso's year-round average. Across 45 years of records, the warmest April in Kelso was 2018 — when the month averaged 17.7°C — while the coldest was 1995 at 11.3°C. Typical April days reach 19.6°C with nights near 8.5°C. The long-term April temperature trend is broadly flat.
April is one of the drier months in Kelso, averaging 46 mm of rainfall. The wettest April on record was 1990 with 249 mm, while the driest were 1997 and 2019 at 3 mm.
Relative humidity in Kelso during April averages 70%. The most humid April was 1989 at 86%, and the least humid was 1997 at 57%.
April receives about 4.1 kWh/m²/day of solar energy in Kelso. The sunniest April was 2021 at 4.8 kWh/m²/day, and the cloudiest was 1990 at 3.1.
Average wind speed in Kelso during April is 0.6 m/s. The windiest Aprils were 1990 and 1995 at 0.7 m/s, while the calmest were 2019, 2021 and 2024, among others at 0.5 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 14.0°C | 13.5°C | 14.4°C | 14.5°C | 13.7°C | -0.3°C |
| Avg High | 19.4°C | 19.2°C | 20.1°C | 20.1°C | 19.0°C | -0.4°C |
| Avg Low | 8.7°C | 7.8°C | 8.8°C | 9.0°C | 8.4°C | -0.3°C |
| Avg Rain | 59 mm | 50 mm | 35 mm | 37 mm | 55 mm | -4 mm |
April temperatures in Kelso have stayed relatively stable across the record.
April has ranged from a record low of -0.2°C (2008) to a record high of 31°C (1986).
Rainfall in April is one of the drier months, averaging 46 mm, with a wettest year of 249 mm.
A good time to visit Kelso
April is a good time to visit Kelso, with days averaging 19.6°C and nights around 8.5°C (mean 14.1°C, close to Kelso's yearly average) and moderate rainfall. January and February 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 | 15.5°C | 9.6°C | 25.5°C | 5.4°C | 27 mm | 67% | 0.6 m/s | 4.4 |
| 2024 | 19.1°C | 13.7°C | 8.4°C | 28.0°C | 2.6°C | 103 mm | 73% | 0.5 m/s | 4.1 |
| 2023 | 18.5°C | 13.4°C | 8.3°C | 21.9°C | 3.4°C | 55 mm | 76% | 0.6 m/s | 3.8 |
| 2022 | 18.6°C | 14.0°C | 9.4°C | 21.8°C | 5.3°C | 57 mm | 81% | 0.6 m/s | 3.7 |
| 2021 | 18.4°C | 12.5°C | 6.7°C | 24.9°C | 0.1°C | 8 mm | 71% | 0.5 m/s | 4.8 |
| 2020 | 17.9°C | 13.0°C | 8.0°C | 22.5°C | 2.8°C | 78 mm | 79% | 0.6 m/s | 3.8 |
| 2019 | 21.7°C | 15.7°C | 9.6°C | 25.3°C | 3.2°C | 3 mm | 67% | 0.5 m/s | 4.6 |
| 2018 🔥 | 23.9°C | 17.7°C | 11.6°C | 30.1°C | 6.6°C | 23 mm | 60% | 0.6 m/s | 4.6 |
| 2017 | 19.2°C | 13.5°C | 7.8°C | 22.3°C | 1.4°C | 17 mm | 72% | 0.5 m/s | 4.2 |
| 2016 | 22.7°C | 16.6°C | 10.5°C | 28.3°C | 7.2°C | 8 mm | 64% | 0.5 m/s | 4.3 |
| 2015 | 17.8°C | 13.1°C | 8.5°C | 24.3°C | 1.4°C | 133 mm | 80% | 0.6 m/s | 3.3 |
| 2014 | 19.2°C | 14.1°C | 9.1°C | 24.7°C | 3.7°C | 57 mm | 77% | 0.5 m/s | 4.1 |
| 2013 | 19.9°C | 14.0°C | 8.1°C | 23.9°C | 2.6°C | 17 mm | 68% | 0.5 m/s | 4.4 |
| 2012 | 18.7°C | 13.6°C | 8.6°C | 25.1°C | 1.5°C | 24 mm | 77% | 0.5 m/s | 4 |
| 2011 | 18.2°C | 12.9°C | 7.7°C | 22.5°C | 3.7°C | 34 mm | 76% | 0.5 m/s | 3.9 |
| 2010 | 19.7°C | 14.3°C | 8.8°C | 23.1°C | 3.1°C | 50 mm | 72% | 0.5 m/s | 4.2 |
| 2009 | 18.4°C | 13.6°C | 8.7°C | 25.0°C | 1.5°C | 56 mm | 74% | 0.6 m/s | 3.7 |
| 2008 | 17.9°C | 12.3°C | 6.8°C | 22.2°C | -0.2°C | 29 mm | 70% | 0.6 m/s | 4 |
| 2007 | 20.6°C | 15.0°C | 9.5°C | 24.7°C | 7.1°C | 42 mm | 65% | 0.6 m/s | 4.1 |
| 2006 | 18.7°C | 12.3°C | 5.9°C | 24.2°C | 0.0°C | 10 mm | 59% | 0.6 m/s | 4.7 |
| 2005 | 23.5°C | 17.1°C | 10.7°C | 27.3°C | 6.4°C | 8 mm | 60% | 0.5 m/s | 4.5 |
| 2004 | 22.3°C | 15.9°C | 9.4°C | 28.4°C | 4.3°C | 8 mm | 59% | 0.6 m/s | 4.6 |
| 2003 | 19.3°C | 14.0°C | 8.8°C | 23.4°C | 5.9°C | 37 mm | 72% | 0.5 m/s | 3.9 |
| 2002 | 21.3°C | 15.7°C | 10.1°C | 25.9°C | 5.8°C | 31 mm | 71% | 0.5 m/s | 4.2 |
| 2001 | 20.5°C | 14.7°C | 9.0°C | 25.8°C | 2.6°C | 70 mm | 65% | 0.6 m/s | 4.1 |
| 2000 | 18.6°C | 13.6°C | 8.7°C | 23.9°C | 1.9°C | 61 mm | 78% | 0.5 m/s | 3.8 |
| 1999 | 17.7°C | 12.5°C | 7.3°C | 20.8°C | 1.4°C | 40 mm | 73% | 0.6 m/s | 4.2 |
| 1998 | 20.5°C | 14.8°C | 9.1°C | 28.1°C | 3.0°C | 85 mm | 66% | 0.5 m/s | 3.8 |
| 1997 | 21.4°C | 14.7°C | 8.1°C | 24.1°C | 1.2°C | 3 mm | 57% | 0.6 m/s | 4.7 |
| 1996 | 18.2°C | 12.1°C | 6.0°C | 25.5°C | 0.6°C | 11 mm | 64% | 0.6 m/s | 4.2 |
| 1995 ❄️ | 17.1°C | 11.3°C | 5.4°C | 22.1°C | 0.9°C | 12 mm | 64% | 0.7 m/s | 4.3 |
| 1994 | 19.5°C | 13.6°C | 7.7°C | 24.3°C | 2.2°C | 39 mm | 67% | 0.6 m/s | 4.4 |
| 1993 | 21.2°C | 15.1°C | 9.0°C | 24.3°C | 6.7°C | 11 mm | 64% | 0.6 m/s | 4.5 |
| 1992 | 19.0°C | 13.6°C | 8.2°C | 25.6°C | 2.5°C | 38 mm | 73% | 0.5 m/s | 4.3 |
| 1991 | 19.9°C | 13.5°C | 7.0°C | 26.2°C | 1.8°C | 16 mm | 60% | 0.6 m/s | 4.6 |
| 1990 🌧️ | 17.2°C | 13.7°C | 10.1°C | 24.9°C | 1.3°C | 249 mm | 86% | 0.7 m/s | 3.1 |
| 1989 | 18.1°C | 14.3°C | 10.5°C | 22.6°C | 5.8°C | 131 mm | 86% | 0.6 m/s | 3.6 |
| 1988 | 18.6°C | 14.2°C | 9.8°C | 22.5°C | 5.6°C | 109 mm | 80% | 0.6 m/s | 3.3 |
| 1987 | 20.2°C | 14.2°C | 8.1°C | 24.4°C | 1.7°C | 13 mm | 67% | 0.5 m/s | 4.5 |
| 1986 | 21.2°C | 14.9°C | 8.6°C | 31.0°C | 2.7°C | 27 mm | 57% | 0.6 m/s | 4.4 |
| 1985 | 18.5°C | 13.7°C | 9.0°C | 26.1°C | 3.6°C | 52 mm | 74% | 0.6 m/s | 4 |
| 1984 | 18.6°C | 13.3°C | 8.0°C | 23.4°C | 2.0°C | 80 mm | 76% | 0.5 m/s | 3.9 |
| 1983 | 17.6°C | 12.5°C | 7.4°C | 23.6°C | 1.1°C | 69 mm | 72% | 0.6 m/s | — |
| 1982 | 20.1°C | 14.2°C | 8.3°C | 24.7°C | 1.1°C | 12 mm | 66% | 0.5 m/s | — |
| 1981 | 21.4°C | 15.1°C | 8.8°C | 25.2°C | 1.0°C | 35 mm | 62% | 0.6 m/s | — |
Actual recorded April data for each year, 1981–2025 — sourced from NASA POWER.
The average high in April is around 19.6°C with lows near 8.5°C (mean 14.1°C), based on 45 years of NASA POWER data.
April averages 46 mm of rainfall in Kelso, one of the drier months. The wettest on record was 249 mm in 1990.
The hottest April reached 31°C in 1986. The coldest dipped to -0.2°C in 2008.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average April temperatures have held steady by about 0°C. Daytime highs moved from 19.2°C to 19.2°C and overnight lows from 8.3°C to 8.5°C over the same span.
April is close to Kelso's year-round average and one of the drier months, so plan for around 19.6°C daytime highs and 8.5°C at night.
Not quite — April is the 7th coolest month in Kelso, averaging 14.1°C.
For April in Kelso, pack light layers you can adjust through the day, with typical highs of 19.6°C and lows of 8.5°C.
Relative humidity in April averages 70% — moderately humid.
Average wind speed in April is 0.6 m/s. The windiest April on record averaged 0.7 m/s (1990).
The wettest April on record was 1990 with 249 mm. On average, April sees 46 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 Kelso 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.
