April is close to Yellowknife's year-round average, with average highs near -2.5°C and lows around -10.3°C (mean -6.4°C). It is one of the drier months, averaging 21 mm of rainfall and 91% relative humidity across the period.
April is close to Yellowknife's year-round average. Across 45 years of records, the warmest April in Yellowknife was 1998 — when the month averaged 1°C — while the coldest was 2002 at -11°C. Typical April days reach -2.5°C with nights near -10.3°C. The long-term trend is cooling, about 0.2°C per decade.
April is one of the drier months in Yellowknife, averaging 21 mm of rainfall. The wettest April on record was 1985 with 46 mm, while the driest was 1989 at 5 mm.
Relative humidity in Yellowknife during April averages 91%. The most humid April was 1992 at 93%, and the least humid was 2010 at 85%.
April receives about 4.6 kWh/m²/day of solar energy in Yellowknife. The sunniest Aprils were 2013 and 2022 at 5.2 kWh/m²/day, and the cloudiest was 2019 at 4.
Average wind speed in Yellowknife during April is 4.1 m/s. The windiest April was 1988 at 5.1 m/s, while the calmest was 2011 at 3.2 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | -6.5°C | -5.4°C | -6.2°C | -7.4°C | -6.6°C | -0.1°C |
| Avg High | -2.6°C | -1.6°C | -2.3°C | -3.0°C | -2.9°C | -0.3°C |
| Avg Low | -10.4°C | -9.2°C | -10.0°C | -11.7°C | -10.3°C | +0.1°C |
| Avg Rain | 25 mm | 24 mm | 21 mm | 17 mm | 20 mm | -4 mm |
April temperatures in Yellowknife have risen by about 0.5°C between 1981–1985 and 2021–2025.
April has ranged from a record low of -36.1°C (1995) to a record high of 17.3°C (2010).
Rainfall in April is one of the drier months, averaging 21 mm, with a wettest year of 46 mm.
A good time to visit Yellowknife
April is a good time to visit Yellowknife, with days averaging -2.5°C and nights around -10.3°C (mean -6.4°C, close to Yellowknife's yearly average) and low rainfall. July and August 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 | -3.3°C | -6.9°C | -10.6°C | 2.6°C | -21.1°C | 26 mm | 90% | 4.1 m/s | 4.7 |
| 2024 | -0.3°C | -3.7°C | -7.1°C | 3.8°C | -22.5°C | 8 mm | 89% | 4.1 m/s | 5 |
| 2023 | 0.5°C | -2.6°C | -5.7°C | 12.0°C | -19.4°C | 23 mm | 90% | 4.7 m/s | 4.5 |
| 2022 | -3.9°C | -8.2°C | -12.4°C | 4.6°C | -30.6°C | 12 mm | 90% | 4.1 m/s | 5.2 |
| 2021 | -5.5°C | -9.1°C | -12.7°C | 1.7°C | -23.7°C | 26 mm | 91% | 4 m/s | 4.2 |
| 2020 | -4.8°C | -9.2°C | -13.6°C | 1.5°C | -27.8°C | 26 mm | 92% | 3.8 m/s | 4.3 |
| 2019 | -3.2°C | -6.8°C | -10.4°C | 5.3°C | -32.4°C | 36 mm | 91% | 3.7 m/s | 4 |
| 2018 | -4.2°C | -9.0°C | -13.7°C | 4.5°C | -29.8°C | 17 mm | 92% | 3.5 m/s | 4.7 |
| 2017 | -3.9°C | -8.0°C | -12.0°C | 4.3°C | -22.1°C | 16 mm | 92% | 3.6 m/s | 4.8 |
| 2016 | -4.6°C | -9.2°C | -13.7°C | 12.9°C | -28.6°C | 21 mm | 91% | 4.2 m/s | 4.4 |
| 2015 | -1.3°C | -5.7°C | -10.0°C | 12.9°C | -31.5°C | 20 mm | 89% | 4.1 m/s | 4.8 |
| 2014 | -3.7°C | -8.5°C | -13.3°C | 13.1°C | -30.2°C | 11 mm | 91% | 4 m/s | 4.8 |
| 2013 | -5.5°C | -10.3°C | -15.1°C | 1.0°C | -35.1°C | 13 mm | 91% | 3.9 m/s | 5.2 |
| 2012 | -2.4°C | -6.6°C | -10.9°C | 3.6°C | -22.1°C | 17 mm | 91% | 4.4 m/s | 4.7 |
| 2011 | -5.4°C | -10.0°C | -14.5°C | 1.0°C | -26.0°C | 16 mm | 91% | 3.2 m/s | 4.7 |
| 2010 | 3.8°C | 0.2°C | -3.4°C | 17.3°C | -12.2°C | 8 mm | 85% | 4.5 m/s | 4.4 |
| 2009 | -2.1°C | -5.4°C | -8.7°C | 4.4°C | -18.9°C | 19 mm | 91% | 3.8 m/s | 4.6 |
| 2008 | -4.4°C | -8.9°C | -13.5°C | 4.4°C | -34.8°C | 23 mm | 92% | 4.1 m/s | 4.8 |
| 2007 | -0.2°C | -3.7°C | -7.2°C | 9.9°C | -27.1°C | 23 mm | 90% | 4.5 m/s | 4.3 |
| 2006 | 0.0°C | -3.6°C | -7.2°C | 11.4°C | -21.4°C | 29 mm | 92% | 4.2 m/s | 4.1 |
| 2005 | -0.2°C | -3.5°C | -6.7°C | 7.3°C | -17.8°C | 26 mm | 90% | 4.6 m/s | 4.3 |
| 2004 | -4.6°C | -9.3°C | -14.1°C | 0.4°C | -25.8°C | 16 mm | 91% | 3.9 m/s | 4.8 |
| 2003 | -0.3°C | -3.8°C | -7.2°C | 8.1°C | -27.7°C | 18 mm | 89% | 4.4 m/s | 4.2 |
| 2002 ❄️ | -6.5°C | -11.0°C | -15.6°C | 1.3°C | -28.0°C | 14 mm | 91% | 3.7 m/s | 4.8 |
| 2001 | -1.7°C | -5.2°C | -8.7°C | 2.8°C | -17.4°C | 14 mm | 92% | 4.2 m/s | 4.6 |
| 2000 | -3.2°C | -7.3°C | -11.3°C | 12.8°C | -27.6°C | 26 mm | 90% | 3.7 m/s | 4.5 |
| 1999 | -0.5°C | -4.2°C | -7.9°C | 10.9°C | -20.0°C | 24 mm | 88% | 4.3 m/s | 4.5 |
| 1998 🔥 | 4.7°C | 1.0°C | -2.6°C | 14.0°C | -11.7°C | 24 mm | 86% | 4 m/s | 4.6 |
| 1997 | -1.1°C | -5.6°C | -10.1°C | 8.8°C | -28.1°C | 15 mm | 88% | 4.4 m/s | 4.6 |
| 1996 | -3.2°C | -7.4°C | -11.6°C | 9.2°C | -28.9°C | 20 mm | 91% | 4.2 m/s | 4.4 |
| 1995 | -3.0°C | -7.3°C | -11.7°C | 11.0°C | -36.1°C | 15 mm | 91% | 4.2 m/s | 4.7 |
| 1994 | -3.7°C | -8.0°C | -12.2°C | 1.8°C | -29.5°C | 14 mm | 91% | 3.8 m/s | 4.8 |
| 1993 | -1.3°C | -4.5°C | -7.6°C | 4.1°C | -15.0°C | 32 mm | 91% | 3.8 m/s | 4.6 |
| 1992 | -4.3°C | -7.8°C | -11.3°C | 2.7°C | -23.9°C | 26 mm | 93% | 4.6 m/s | 4.7 |
| 1991 | -1.5°C | -4.2°C | -6.9°C | 2.0°C | -14.6°C | 40 mm | 91% | 4 m/s | 4.7 |
| 1990 | -2.4°C | -6.1°C | -9.7°C | 2.9°C | -17.3°C | 28 mm | 92% | 4.2 m/s | 4.6 |
| 1989 | -2.2°C | -6.7°C | -11.2°C | 15.5°C | -25.7°C | 5 mm | 90% | 3.5 m/s | 4.7 |
| 1988 | -2.2°C | -5.6°C | -8.9°C | 3.0°C | -20.7°C | 33 mm | 92% | 5.1 m/s | 4.3 |
| 1987 | -0.2°C | -4.3°C | -8.4°C | 11.0°C | -28.2°C | 21 mm | 91% | 3.8 m/s | 4.4 |
| 1986 | -4.8°C | -8.7°C | -12.7°C | 1.1°C | -28.8°C | 20 mm | 93% | 4.6 m/s | 4.7 |
| 1985 🌧️ | -3.4°C | -7.3°C | -11.2°C | 1.5°C | -29.2°C | 46 mm | 93% | 4.1 m/s | 4.7 |
| 1984 | 2.4°C | -1.1°C | -4.7°C | 13.9°C | -17.7°C | 26 mm | 88% | 3.9 m/s | 4.5 |
| 1983 | -2.8°C | -6.3°C | -9.8°C | 4.1°C | -25.8°C | 25 mm | 91% | 4.3 m/s | — |
| 1982 | -4.1°C | -8.4°C | -12.8°C | 2.8°C | -33.8°C | 21 mm | 92% | 4.4 m/s | — |
| 1981 | -5.8°C | -9.9°C | -14.1°C | 7.0°C | -31.6°C | 23 mm | 92% | 4 m/s | — |
Actual recorded April data for each year, 1981–2025 — sourced from NASA POWER.
The average high in April is around -2.5°C with lows near -10.3°C (mean -6.4°C), based on 45 years of NASA POWER data.
April averages 21 mm of rainfall in Yellowknife, one of the drier months. The wettest on record was 46 mm in 1985.
The hottest April reached 17.3°C in 2010. The coldest dipped to -36.1°C in 1995.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average April temperatures have risen by about 0.5°C. Daytime highs moved from -2.7°C to -2.5°C and overnight lows from -10.5°C to -9.7°C over the same span.
April is close to Yellowknife's year-round average and one of the drier months, so plan for around -2.5°C daytime highs and -10.3°C at night.
Not quite — April is the 6th coolest month in Yellowknife, averaging -6.4°C.
For April in Yellowknife, pack warm layers and a jacket for chilly mornings, with typical highs of -2.5°C and lows of -10.3°C.
Relative humidity in April averages 91% — quite humid.
Average wind speed in April is 4.1 m/s. The windiest April on record averaged 5.1 m/s (1988).
The wettest April on record was 1985 with 46 mm. On average, April sees 21 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 Yellowknife 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.
