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April Weather in Lethbridge, Canada

Last updated: June 18, 2025

In Lethbridge, Canada, the average temperature in April hovers around 4°C (40°F). However, temperatures can vary significantly, with a minimum of -19°C (-2°F) and a maximum reaching up to 27°C (82°F). During this month, expect approximately 35 mm (1.4 in) of precipitation spread over about 8 days, coupled with an average humidity level of 84%.

April Temperature in Lethbridge

In April in Lethbridge, the average temperature is 4°C (40°F), with maximums reaching 27°C (82°F) and minimums dropping as low as -19°C (-2°F). Travelers should be prepared for a wide range of temperatures during this time, ensuring they pack both warm and cooler clothing options.

April Weather in Lethbridge: Daily Temperature Highs, Lows, and Averages

The chart illustrates April temperature patterns in Lethbridge, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Lethbridge, April typically has an average temperature of 4°C (40°F), with highs reaching up to 27°C (82°F) and lows dropping to around -19°C (-2°F).
JanFebMarAprMayJunJulAugSepOctNovDec241730405362676556423325
Data source: Temperature data for Lethbridge generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

April Precipitation in Lethbridge

In Lethbridge in April, the precipitation amount is 35 mm (1.4 in) over the course of 8 days.

April Precipitation Trends in Lethbridge

The chart displays monthly precipitation patterns in Lethbridge, with values for each month alongside April’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how April’s conditions compare to those of other months. In Lethbridge, April typically receives around 35 mm (1.4 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec103123355662282535353422
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in Lethbridge

In Lethbridge in April, humidity is 84%. With an average temperature of 4°C (40°F), this humidity feels like a damp chill that seeps into your bones, making outdoor activities uncomfortable and requiring extra layers to stay warm and dry while traveling.

April Average Humidity in Lethbridge

This chart illustrates the average monthly humidity levels in Lethbridge, with April’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In April, average humidity in Lethbridge is approximately 84%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec93%91%88%84%78%77%79%69%69%78%87%94%
Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in Lethbridge

In Lethbridge in April, the maximum UV index is 6, which corresponds to a high Exposure Category. The time to burn is approximately 25 minutes. To find the hourly UV index in Lethbridge, you can refer to this Hourly UV Index in Lethbridge.

Maximum UV Index Levels in Lethbridge for April

The chart shows the monthly maximum UV Index (UVI) for Lethbridge in April, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In April, the maximum UV index in Lethbridge typically reaches 6, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec235689987422
Data source: Lethbridge April UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

How April Weather in Lethbridge Compares to Other Months

Weather in Lethbridge varies notably across the year, with each month offering distinct climate conditions. This page compares April’s weather to other months in Lethbridge, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Lethbridge, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-5°C (24°F)10 mm (0.4 inches)93%low
February Weather-9°C (17°F)31 mm (1.2 inches)91%moderate
March Weather-1°C (31°F)23 mm (0.9 inches)88%moderate
April Weather4°C (40°F)35 mm (1.4 inches)84%high
May Weather12°C (53°F)56 mm (2.2 inches)78%very high
June Weather16°C (62°F)62 mm (2.4 inches)77%very high
July Weather19°C (67°F)28 mm (1.1 inches)79%very high
August Weather19°C (66°F)25 mm (1.0 inches)69%very high
September Weather13°C (56°F)35 mm (1.4 inches)69%high
October Weather5°C (42°F)35 mm (1.4 inches)78%moderate
November Weather1°C (33°F)34 mm (1.3 inches)87%low
December Weather-4°C (26°F)22 mm (0.8 inches)94%low

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