April is one of the cooler months of the year in Lockport, with average highs near 11.4°C and lows around 1.7°C (mean 6.6°C). It is about average for rainfall, averaging 78 mm of rainfall and 79% relative humidity across the period.
April is one of the cooler months of the year in Lockport. Across 45 years of records, the warmest April in Lockport was 2010 — when the month averaged 9.4°C — while the coldest was 2018 at 3.2°C. Typical April days reach 11.4°C with nights near 1.7°C. The long-term trend is warming, about 0.2°C per decade.
April is about average for rainfall in Lockport, averaging 78 mm of rainfall. The wettest April on record was 2017 with 133 mm, while the driest were 1997 and 2001 at 37 mm.
Relative humidity in Lockport during April averages 79%. The most humid Aprils were 2011 and 2019 at 83%, and the least humid was 2010 at 73%.
April receives about 4.4 kWh/m²/day of solar energy in Lockport. The sunniest Aprils were 2008 and 2010 at 5.1 kWh/m²/day, and the cloudiest was 1993 at 3.4.
Average wind speed in Lockport during April is 1.7 m/s. The windiest April was 1982 at 2.2 m/s, while the calmest were 1998, 2001 and 2008, among others at 1.4 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 6.4°C | 6.1°C | 6.7°C | 6.5°C | 7.3°C | +0.9°C |
| Avg High | 11.3°C | 10.9°C | 11.6°C | 11.5°C | 12.1°C | +0.8°C |
| Avg Low | 1.6°C | 1.3°C | 1.8°C | 1.4°C | 2.5°C | +0.9°C |
| Avg Rain | 66 mm | 76 mm | 80 mm | 87 mm | 83 mm | +17 mm |
April temperatures in Lockport have risen by about 1.3°C between 1981–1985 and 2021–2025.
April has ranged from a record low of -10.8°C (1982) to a record high of 26.9°C (1990).
Rainfall in April is about average for rainfall, averaging 78 mm, with a wettest year of 133 mm.
A good time to visit Lockport
April is a good time to visit Lockport, with days averaging 11.4°C and nights around 1.7°C (mean 6.6°C, cooler than Lockport's yearly average) and moderate 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 | 12.2°C | 7.1°C | 2.1°C | 23.1°C | -4.4°C | 83 mm | 75% | 1.7 m/s | 4.4 |
| 2024 | 13.3°C | 8.6°C | 3.8°C | 22.6°C | -2.3°C | 116 mm | 80% | 1.7 m/s | 3.9 |
| 2023 | 13.8°C | 8.6°C | 3.3°C | 26.5°C | -4.6°C | 96 mm | 79% | 1.6 m/s | 4.6 |
| 2022 | 11.1°C | 6.3°C | 1.5°C | 24.1°C | -3.5°C | 72 mm | 78% | 1.6 m/s | 4.6 |
| 2021 | 12.8°C | 7.9°C | 3.1°C | 24.9°C | -4.6°C | 66 mm | 75% | 1.6 m/s | 4.4 |
| 2020 | 9.6°C | 5.3°C | 1.1°C | 16.5°C | -3.5°C | 68 mm | 77% | 1.8 m/s | 4.5 |
| 2019 | 11.1°C | 6.3°C | 1.5°C | 19.5°C | -6.2°C | 84 mm | 83% | 1.7 m/s | 3.8 |
| 2018 ❄️ | 7.2°C | 3.2°C | -0.8°C | 19.1°C | -5.2°C | 95 mm | 80% | 1.9 m/s | 4.1 |
| 2017 🌧️ | 14.0°C | 9.0°C | 4.0°C | 26.1°C | -2.3°C | 133 mm | 82% | 1.7 m/s | 4.1 |
| 2016 | 9.4°C | 4.6°C | -0.3°C | 20.2°C | -7.4°C | 50 mm | 75% | 1.7 m/s | 4.8 |
| 2015 | 12.2°C | 6.7°C | 1.2°C | 20.9°C | -3.8°C | 74 mm | 76% | 1.6 m/s | 4.8 |
| 2014 | 11.3°C | 5.8°C | 0.2°C | 20.1°C | -7.2°C | 103 mm | 79% | 1.6 m/s | 4.4 |
| 2013 | 11.5°C | 6.2°C | 1.0°C | 22.7°C | -4.8°C | 87 mm | 77% | 2 m/s | 4.4 |
| 2012 | 11.7°C | 6.6°C | 1.6°C | 24.4°C | -1.9°C | 65 mm | 74% | 1.7 m/s | 4.5 |
| 2011 | 11.3°C | 6.7°C | 2.2°C | 22.7°C | -1.9°C | 130 mm | 83% | 1.8 m/s | 3.8 |
| 2010 🔥 | 15.0°C | 9.4°C | 3.8°C | 24.9°C | -0.7°C | 50 mm | 73% | 1.6 m/s | 5.1 |
| 2009 | 12.2°C | 7.2°C | 2.1°C | 23.7°C | -3.5°C | 81 mm | 79% | 1.9 m/s | 4.6 |
| 2008 | 14.6°C | 8.8°C | 3.0°C | 25.7°C | -3.2°C | 53 mm | 78% | 1.4 m/s | 5.1 |
| 2007 | 9.0°C | 5.1°C | 1.3°C | 20.1°C | -5.7°C | 77 mm | 82% | 1.9 m/s | 3.8 |
| 2006 | 12.6°C | 7.5°C | 2.5°C | 21.0°C | -2.7°C | 57 mm | 78% | 1.5 m/s | 4.9 |
| 2005 | 11.7°C | 6.7°C | 1.6°C | 21.3°C | -1.9°C | 116 mm | 80% | 1.6 m/s | 4.6 |
| 2004 | 11.2°C | 6.7°C | 2.3°C | 21.1°C | -5.7°C | 106 mm | 82% | 1.7 m/s | 4.3 |
| 2003 | 9.9°C | 4.9°C | -0.2°C | 20.7°C | -9.8°C | 53 mm | 80% | 1.7 m/s | 4.3 |
| 2002 | 11.4°C | 6.8°C | 2.2°C | 24.5°C | -3.9°C | 104 mm | 81% | 1.5 m/s | 4 |
| 2001 | 13.1°C | 7.3°C | 1.6°C | 22.9°C | -3.7°C | 37 mm | 77% | 1.4 m/s | 4.7 |
| 2000 | 10.4°C | 6.0°C | 1.7°C | 20.0°C | -3.2°C | 119 mm | 80% | 1.6 m/s | 3.8 |
| 1999 | 11.9°C | 6.7°C | 1.5°C | 20.8°C | -2.9°C | 67 mm | 76% | 1.6 m/s | 4.9 |
| 1998 | 12.3°C | 7.4°C | 2.6°C | 19.2°C | -2.8°C | 66 mm | 76% | 1.4 m/s | 4.9 |
| 1997 | 9.8°C | 5.0°C | 0.2°C | 19.5°C | -6.5°C | 37 mm | 77% | 1.6 m/s | 4.6 |
| 1996 | 8.6°C | 4.2°C | -0.3°C | 19.4°C | -4.4°C | 121 mm | 81% | 1.8 m/s | 3.7 |
| 1995 | 8.7°C | 3.9°C | -0.9°C | 18.2°C | -6.6°C | 38 mm | 76% | 1.7 m/s | 4.4 |
| 1994 | 12.0°C | 6.5°C | 1.1°C | 22.6°C | -6.2°C | 91 mm | 78% | 1.8 m/s | 4.7 |
| 1993 | 11.4°C | 6.4°C | 1.5°C | 20.2°C | -3.0°C | 56 mm | 80% | 1.5 m/s | 3.4 |
| 1992 | 10.1°C | 5.5°C | 0.9°C | 20.5°C | -5.4°C | 93 mm | 80% | 1.4 m/s | 4 |
| 1991 | 12.8°C | 8.4°C | 3.9°C | 20.8°C | -3.6°C | 97 mm | 83% | 1.7 m/s | 4 |
| 1990 | 11.8°C | 7.2°C | 2.5°C | 26.9°C | -4.0°C | 89 mm | 80% | 1.6 m/s | 4.3 |
| 1989 | 9.3°C | 4.4°C | -0.4°C | 16.7°C | -4.7°C | 51 mm | 76% | 1.5 m/s | 4.5 |
| 1988 | 11.0°C | 6.0°C | 1.1°C | 18.2°C | -3.3°C | 66 mm | 78% | 1.6 m/s | 4.2 |
| 1987 | 13.2°C | 8.4°C | 3.5°C | 23.7°C | -5.2°C | 72 mm | 81% | 1.7 m/s | 4.6 |
| 1986 | 12.2°C | 7.4°C | 2.5°C | 25.1°C | -3.2°C | 84 mm | 81% | 1.5 m/s | 4.4 |
| 1985 | 13.0°C | 8.2°C | 3.3°C | 26.0°C | -4.7°C | 41 mm | 79% | 1.8 m/s | 4.6 |
| 1984 | 11.3°C | 6.7°C | 2.2°C | 22.6°C | -3.5°C | 80 mm | 83% | 1.5 m/s | 4.2 |
| 1983 | 10.2°C | 5.8°C | 1.5°C | 18.9°C | -3.0°C | 75 mm | 81% | 1.8 m/s | — |
| 1982 | 9.3°C | 4.2°C | -0.9°C | 21.1°C | -10.8°C | 46 mm | 77% | 2.2 m/s | — |
| 1981 | 12.3°C | 6.9°C | 1.5°C | 19.9°C | -4.9°C | 80 mm | 74% | 2 m/s | — |
Actual recorded April data for each year, 1981–2025 — sourced from NASA POWER.
The average high in April is around 11.4°C with lows near 1.7°C (mean 6.6°C), based on 45 years of NASA POWER data.
April averages 78 mm of rainfall in Lockport, about average for rainfall. The wettest on record was 133 mm in 2017.
The hottest April reached 26.9°C in 1990. The coldest dipped to -10.8°C in 1982.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average April temperatures have risen by about 1.3°C. Daytime highs moved from 11.2°C to 12.6°C and overnight lows from 1.5°C to 2.8°C over the same span.
April is one of the cooler months of the year in Lockport and about average for rainfall, so plan for around 11.4°C daytime highs and 1.7°C at night.
Not quite — April is the 6th coolest month in Lockport, averaging 6.6°C.
For April in Lockport, pack warm layers and a jacket for chilly mornings, with typical highs of 11.4°C and lows of 1.7°C. Bring an umbrella or light rain jacket too.
Relative humidity in April averages 79% — quite humid.
Average wind speed in April is 1.7 m/s. The windiest April on record averaged 2.2 m/s (1982).
The wettest April on record was 2017 with 133 mm. On average, April sees 78 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 Lockport 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.
