April Weather in Calgary, Canada

Last updated: April 22, 2025

April in Calgary brings a dynamic range of weather, showcasing maximum temperatures soaring up to 26°C (80°F) while the average lingers around a cool 3°C (37°F). As spring unfolds, residents experience the chill of minimum temperatures dipping to -17°C (1°F), creating a unique contrast. The month is marked by 38 mm (1.5 in) of precipitation spread over 9 days, contributing to an 84% humidity level that adds to the refreshing atmosphere. This blend of warmth and chill highlights Calgary’s unpredictable April weather, inviting both adventure and preparation for its diverse conditions.

April Temperature in Calgary

In April, Calgary experiences a noticeable shift as winter begins to relinquish its grip, with temperatures ranging from a brisk -17°C (1°F) at night to a delightful 26°C (80°F) during the day. The average temperature settles at 3°C (37°F), signaling the onset of spring and the promise of warmer days ahead. This transition is reflected in the upward trend from the colder months of January through March, where the city sees maximum temperatures gradually rise from 11°C (52°F) to 18°C (64°F). As April unfolds, residents enjoy the sharp contrast to the frigid winter, making it an ideal time to embrace outdoor activities amidst the blossoming scenery.

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

The chart illustrates April temperature patterns in Calgary, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec191327375058636252382920
Data source: Temperature data for Calgary generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

April Precipitation in Calgary

In April, Calgary experiences a notable shift in precipitation as winter relinquishes its grip, ushering in the spring season. With 38 mm (1.5 in) of rainfall over 9 days, April stands out as a month of increased moisture compared to its predecessors, particularly March's 27 mm (1.1 in). This uptick in precipitation not only signifies the awakening of nature but also sets the stage for May, which typically sees even heavier rainfall. As the days grow longer and temperatures rise, April's wetter weather plays a crucial role in supporting the lush greenery that will soon blanket the city, highlighting a clear transition toward the vibrant conditions of summer.

April Precipitation Trends in Calgary

The chart displays monthly precipitation patterns in Calgary, 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.
JanFebMarAprMayJunJulAugSepOctNovDec82927386285694343312624
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

April Humidity in Calgary

In April, Calgary experiences a noticeable shift in humidity, dropping to 84% from the higher levels seen in the winter months. This decline marks the beginning of a gradual decrease that continues into the warmer spring and summer months, where May sees a further reduction to 80% and June reaches 79%. Despite April’s drop, humidity levels remain higher than the later summer months, showcasing a transition from the cold, moist air of winter to the drier conditions associated with summer. This fluctuation highlights how Calgary’s climate shifts throughout the year, with April serving as a pivotal point where spring begins to assert itself more firmly.

April Average Humidity in Calgary

This chart illustrates the average monthly humidity levels in Calgary, with April's data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, allowing you to see how April's humidity levels compare to other months.
JanFebMarAprMayJunJulAugSepOctNovDec91%93%88%84%80%79%80%77%74%80%86%92%
Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in Calgary

As April arrives in Calgary, residents and visitors must be mindful of the increasing UV Index, which rises to 6, placing it in the high exposure category. This marks a notable shift from the moderate levels earlier in the year—January through March—with UV readings of only 2 to 4. With a diminished burn time of just 25 minutes, it's clear that sun safety becomes increasingly important as spring unfolds. The trend towards higher UV exposure will only continue as the months progress, foreshadowing even more intense levels in May and June, when the Index climbs to a concerning 8. To stay informed and protect your skin, check out the latest updates on the Calgary UV Index!

Maximum UV Index Levels in Calgary for April

The chart shows the monthly maximum UV Index (UVI) for Calgary 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.
JanFebMarAprMayJunJulAugSepOctNovDec234688987421
Data source: Calgary 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.

April Sunshine in Calgary

As April unfolds in Calgary, the city basks in a delightful increase in sunshine, totaling 287 hours for the month. This marks a significant rise from the 256 hours recorded in March, showcasing a vibrant transition into spring. The trend continues upward as we approach May, where sunshine hours leap again to 318, signaling longer, brighter days ahead. This gradual ascent from winter’s grasp, which saw only 140 hours in January, highlights Calgarians' anticipation for sunnier times, fostering a renewed sense of energy and outdoor enthusiasm as the months progress towards summer.

Monthly Sunshine Duration in Calgary: April Highlighted

The April sunshine duration represents the total number of hours Calgary experiences direct sunlight during the month of April, excluding cloudy or obstructed periods. This chart compares the sunshine duration of April with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec140h180h256h287h318h347h382h331h255h223h166h163h
Data source: Calgary April Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Calgary During April

As Calgary transitions into April, the likelihood of enjoying sunny weather sees a notable increase, rising to 49% from an already promising 46% in March. This upward trend continues into the warmer months, as summer brings a delightful peak with July boasting a 57% chance of sunshine. Meanwhile, April serves as a pivotal month, bridging the often gloomy winter days—with their lower percentages, such as 28% in February—into the more vibrant spring and summer months. Although May dips slightly to 37%, the overall trajectory shows that Calgary residents can look forward to brighter days ahead as they welcome the freshness of spring.

Percentage of Sunny Days in April in Calgary

The chart illustrates the percentage of sunny days in Calgary throughout the year, with April highlighted. It highlights the variation in sunshine across each month and provides an overview of the typical frequency of sunny days, offering insights into how often Calgary experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec43%28%46%49%37%54%58%47%47%50%42%32%
Data source: Calgary April chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Calgary in April

As April rolls into Calgary, the days grow notably longer, with daylight reaching an invigorating 13 hours. This increase marks a significant leap from the 11 hours in March, signaling the heart of spring and the promise of warmer days ahead. The trend continues as May approaches, bringing even more sunlight, which stretches to 15 hours. The gradual lengthening of daylight is a stark contrast to the minimal 8 hours experienced in January, highlighting the dramatic seasonal shift. By the time summer arrives in June with its peak of 16 hours of daylight, Calgary bask in the brightness that invigorates both nature and the city's vibrant activities. This seasonal progression from stark winter to the lush dynamism of summer encapsulates the essence of Calgary’s stunning daylight transformation throughout the year.

Average Daylight Hours in Calgary for April

The chart illustrates the variation in daylight duration in Calgary throughout the year, with April highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec8h 28m10h 1m11h 56m13h 53m15h 35m16h 27m15h 58m14h 26m12h 33m10h 37m8h 53m7h 58m
Data source: Calgary daylight hours, calculated by summing the hours between sunrise and sunset for each day.

April Winds in Calgary

As April unfolds in Calgary, the average wind speed settles at 3.0 m/s (7 mph), slightly lower than the start of the year but consistent with the mild breeziness that characterizes spring. This month's wind speed mirrors March's conditions, suggesting a transitional phase where the lingering chill of winter begins to give way to the warmth of summer. Following April, the winds experience a slight uptick in May before gradually tapering in the hotter months of summer, particularly in July, where they drop to 2.4 m/s (5 mph). This pattern indicates a shifting dynamic as Calgary moves from the brisk freshness of early spring into the warm stillness of summer, highlighting the unique interplay of seasonal changes in this vibrant Canadian city.

Average April Wind Speed in Calgary

The chart displays monthly wind speed patterns in Calgary, with values for each month shown alongside April's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how April's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec3.22.83.23.0 m/s3.12.82.42.62.73.03.12.8
Data source: Calgary April wind data, generated using information from the Copernicus Climate Change Service.

How April Weather in Calgary Compares to Other Months

The weather in Calgary changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of April's weather with other months, highlighting differences in temperature, precipitation, and other key factors. Click on each section to discover seasonal trends in Calgary and find detailed weather information for every month.

In comparing the weather of April and January, a striking contrast emerges. April generally experiences a more moderate climate with temperatures ranging from a minimum of -17°C (1°F) to a maximum of 26°C (80°F) and an average of 3°C (37°F). This month also sees relatively higher precipitation of 38 mm (1.5 in) over about 9 days and a humidity level of 84%. In contrast, January is much colder, with temperatures plummeting to a minimum of -36°C (-32°F) and peaking at just 11°C (52°F), resulting in an average temperature of -7°C (20°F). Additionally, January has significantly lower precipitation, measuring only 8 mm (0.3 in) over 2 days, and a slightly higher humidity at 91%. For further details on January weather, visit Calgary weather in January.

April offers a noticeable shift in weather compared to February, with a much milder average temperature of 3°C (37°F) versus February's chillier average of -10°C (14°F). While both months experience a similar amount of precipitation, April sees a slightly higher total at 38 mm (1.5 in) and more days of rain, reflecting its transitional nature. Humidity levels are also less oppressive in April at 84%, compared to a much higher 93% in February. For those interested in more detailed weather patterns, you can find additional information here: Calgary weather in February.

In comparing the weather of April and March, it's evident that April offers a more temperate experience. April sees temperatures ranging from a minimum of -17°C (1°F) to a maximum of 26°C (80°F), with an average temperature of 3°C (37°F). In contrast, March has a much colder profile, with a minimum of -31°C (-23°F) and an average temperature of -3°C (27°F), peaking at only 18°C (64°F). Both months witness precipitation, but April experiences slightly more with 38 mm (1.5 in) over 9 days, compared to March's 27 mm (1.1 in) over 6 days. Additionally, while humidity levels remain high in both months, they are slightly lower in April at 84% compared to 88% in March. For more detailed insights, you can check out Calgary weather in March.

April and May present notable differences in weather patterns. In April, temperatures range from a chilly minimum of -17°C (1°F) to a maximum of 26°C (80°F), with an average of around 3°C (37°F). This month experiences 38 mm (1.5 in) of precipitation over 9 days and maintains a high humidity level of 84%. In contrast, May sees more moderate temperatures, with a minimum of -6°C (22°F), an average of 10°C (51°F), and a maximum of 29°C (85°F). While precipitation increases to 62 mm (2.4 in) over 10 days, humidity is slightly lower at 80%. For a detailed outlook on what to expect, check out Calgary weather in May.

In comparing the weather of April and June, we see notable differences in temperature and precipitation patterns. April typically experiences cooler temperatures, with a minimum of -17°C (1°F) and an average of 3°C (37°F), reaching a maximum of 26°C (80°F). The month sees around 38 mm (1.5 in) of precipitation over 9 days, coupled with high humidity at 84%. In contrast, June warms up considerably, with temperatures ranging from a minimum of 1°C (35°F) to an average of 15°C (59°F) and a maximum reaching 37°C (99°F). The rainfall increases to 85 mm (3.3 in) across 12 days, while humidity drops slightly to 79%. For more detailed information, you can check Calgary weather in June.

April and July in Calgary showcase a stark contrast in weather patterns. April experiences a wide temperature range with minimums dropping to -17°C (1°F) and maximums reaching 26°C (80°F), resulting in an average of 3°C (37°F). Despite having less rainfall, with 38 mm (1.5 in) over 9 days, the humidity remains high at 84%. In contrast, July boasts a milder minimum of 5°C (41°F) and a significantly warmer maximum of 36°C (98°F), leading to an average temperature of 17°C (63°F). While July sees more precipitation at 69 mm (2.7 in) over 11 days, the humidity drops slightly to 80%. This shift exemplifies Calgary's transition from the chill of early spring to the warmth of summer. For more detailed information, visit Calgary weather in July.

April and August exhibit notably different weather patterns in Calgary. In April, temperatures range from a chilly -17°C (1°F) at night to a pleasant 26°C (80°F) during the day, with an average of 3°C (37°F). The month sees about 38 mm (1.5 in) of precipitation spread over 9 days, and the humidity levels remain high at 84%. Conversely, August brings warmer temperatures, with a minimum of 3°C (37°F) and a maximum reaching a scorching 38°C (100°F), culminating in an average of 16°C (62°F). Although August has slightly more precipitation at 43 mm (1.7 in) over just 7 days, the humidity drops to 77%. For a detailed look at August weather, visit Calgary weather in August.

April and September present distinct shifts in weather patterns. In April, temperatures can plunge down to -17°C (1°F) and rise to a comfortable average of 3°C (37°F), peaking at 26°C (80°F). The month experiences a fair amount of precipitation, with around 38 mm (1.5 in) falling over 9 days, and high humidity levels at 84%. Conversely, September shows a milder temperature range, with minimums of -3°C (27°F), an average of 11°C (52°F), and maximums reaching 33°C (92°F). This month also sees slightly more precipitation at 43 mm (1.7 in) over the same number of days, but with a lower humidity level of 74%. For more details on the weather conditions in September, you can check out Calgary weather in September.

April and October offer contrasting weather experiences, characterized by shifts in temperature and precipitation patterns. In April, temperatures range from a low of -17°C (1°F) to a high of 26°C (80°F), with an average of 3°C (37°F) and a notable humidity level of 84%. The month sees about 38 mm of precipitation over 9 days, marking it as a transitional period into spring. Conversely, October presents cooler temperatures, with a minimum of -22°C (-8°F) and a maximum of 24°C (75°F), giving an average of 4°C (39°F). Precipitation is somewhat lower at 31 mm over just 5 days, along with a slightly reduced humidity of 80%. For more detailed information, check out Calgary weather in October.

April and November present distinct weather patterns, showcasing a transition from cold to milder conditions. In April, temperatures can range from a chilling -17°C (1°F) at night to a pleasant maximum of 26°C (80°F) during the day, averaging around 3°C (37°F). The month experiences about 38 mm (1.5 in) of precipitation over roughly 9 days, with a humidity level of 84%. In contrast, November brings more severe cold, with minimum temperatures plummeting to -23°C (-9°F) and an average of -2°C (29°F), peaking at 21°C (70°F). Precipitation decreases to 26 mm (1.0 in) over 7 days, with humidity slightly higher at 86%. For a more detailed overview, you can check out Calgary weather in November.

In comparing the weather of April and December, notable contrasts emerge in both temperature and precipitation patterns. April sees a much milder climate, with temperatures ranging from a minimum of -17°C (1°F) to a maximum of 26°C (80°F), and an average of 3°C (37°F). This month also experiences around 38 mm of precipitation spread over 9 days, contributing to a humidity level of 84%. In contrast, December brings much harsher conditions, with temperatures plunging to a minimum of -35°C (-31°F) and averaging -7°C (20°F), peaking at 14°C (58°F). Precipitation is lower at 24 mm (0.9 in) but is confined to just 5 days, alongside a higher humidity of 92%. For further insights into December's conditions, you can explore Calgary weather in December.

Compare Calgary's Climate with Cities Worldwide

Conclusion: What to Expect From April Weather in Calgary

April in Calgary marks a notable transition as winter begins to relinquish its grip, showcasing a blend of chilly mornings and surprisingly warm afternoons. With temperatures swinging from brisk lows to pleasant highs, residents experience the first hints of spring among the often unpredictable weather. Frequent precipitation adds a refreshing touch, but it’s the fluctuating temperatures and high humidity levels that truly define the month, differing sharply from the more stable conditions of summer months. For those eager to understand Calgary's diverse weather patterns in greater depth, additional insights can be found in the comprehensive resource on Calgary Climate.