Last updated: February 24, 2025
April in Louisville, United States, showcases a dynamic climate marked by fluctuating temperatures and notable humidity levels. With a maximum temperature reaching 29°C (84°F) and an average of 13°C (56°F), this month offers a mix of early spring warmth and cooler nights, where temperatures can dip to a minimum of -3°C (27°F). Precipitation plays a significant role, as the city experiences 137 mm (5.4 in) across 12 rainy days, contributing to the lush greenery typical of the season. With an average humidity of 84%, April serves as a reminder of the vibrant yet fleeting transition between winter and summer in this charming locale.
In April, Louisville begins to shake off the winter chill, with temperatures shifting noticeably as the month progresses. The minimum temperature rises to a more tolerable -3°C (27°F), while the average reaches a pleasant 13°C (56°F), reflecting the city's gradual warming. With maximum temperatures climbing to a delightful 29°C (84°F), April offers a welcome invitation to outdoor activities as nature bursts into bloom. This pattern marks a significant transition from the colder early months, creating an atmosphere of renewal and vibrancy that signals the approach of late spring. As Louisville continues to warm, residents and visitors alike can savor the delightful changes that April brings.
In April, Louisville experiences a notable increase in precipitation, with 137 mm (5.4 in) of rain recorded over 12 days. This rise follows March's already substantial rainfall, creating a pattern that often results in a lush spring landscape. Over the months, April ranks as one of the wetter periods in the year, typically outpacing both May and June in total rainfall. The consistent precipitation throughout the spring months signals a gradual transition from the winter chill to more vibrant, growth-oriented weather, firmly establishing April as a key player in the city’s climate narrative.
April in Louisville ushers in a slight dip in humidity, averaging 84%, which reflects a gradual easing from the winter months. This marks a transition from the higher levels seen in January through March, where humidity hovered around 86% to 87%. As spring blossoms, the trend points towards lower humidity levels, culminating in May's more comfortable 79%. Interestingly, this pattern suggests that the city experiences a shift to drier conditions as it moves towards the summer months, with notable reductions particularly occurring in the heart of summer, evidenced by July and August dropping to 79% and 70%, respectively.
As April arrives in Louisville, the UV Index skyrockets to 9, marking it as a month of very high sun exposure risk. This dramatic increase from March's 7 emphasizes the shift towards sunnier days, reducing burn time to just 15 minutes for unprotected skin. Comparatively, January and February had moderate levels of UV exposure with indices of 3 and 5, with burn times of 30 minutes. However, the ascent continues into May, which sees an even higher UV Index of 10. As the spring season progresses, it's crucial to stay vigilant and protect your skin, particularly when spending time outdoors. For more insights on UV conditions throughout the year, explore the detailed information available at Louisville UV Index.
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As April unfolds in Louisville, the city basks in a delightful 241 hours of sunshine, marking a notable increase from the previous months. This vibrant boost is a precursor to the summer warmth, as daylight hours continue to climb towards May's impressive 287 hours. Following the gentle transition from the winter chill, the gradual rise in sunshine from January's 128 hours to March's 219 hours signals a burgeoning energy among residents, who eagerly anticipate the brighter days ahead. April, with its mix of gentle rains and sunlit skies, serves as a perfect bridge to the peak of summer, where sunshine reaches its pinnacle in July with 345 hours.
In April, Louisville awakens from the cool grip of winter, and the likelihood of sunny weather begins to rise significantly, reaching 48%, which is one of the highest chances of sunshine leading into the warmer months. This marks a notable uptick from 42% in March and positions April as a key transitional month, with the sun's rays becoming more frequent than in the colder months like January and February, which hover around 31% and 24%, respectively. As spring unfolds, this increased likelihood not only enhances outdoor activities but also sets the stage for the sunnier days to come in May and June. The trend indicates a promising shift towards more pleasant weather, making April an inviting time to bask in the emerging warmth of the season.
As April unfolds in Louisville, the city experiences a significant leap in daylight, with sunshine extending to 13 hours—a full two hours more than March. This transition marks a steady increase in daylight that begins in January with just 9 hours and accelerates through the spring months, culminating in 14 hours by May and June. This trend reflects the gradual emergence of longer, brighter days, creating a vibrant atmosphere that enhances outdoor activities and invites the community to embrace the beauty of spring. As daylight begins to wane slightly in August, the lingering warmth and longer days of April remind us of the joy of longer evenings spent under the open sky.
In April, Louisville experiences a gentle breath of wind, with an average speed of 2.9 m/s (6 mph). This subtle shift marks a slight decrease from the brisk breezes of March, which peaked at 3.2 m/s (7 mph). As the city transitions into spring, the wind dance slows, setting the stage for warmer days ahead. Interestingly, April's winds remain stronger than those in the approaching summer months, hinting at a seasonal trend where wind speeds gradually diminish during the hotter part of the year. As blossoms bloom and the atmosphere warms, these softer winds reflect the tranquil beauty that characterizes Louisville in April.
The weather in Louisville 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 Louisville and find detailed weather information for every month.
April and January present quite a contrast in weather conditions. In April, temperatures range from a minimum of -3°C (27°F) to a maximum of 29°C (84°F), with an average of 13°C (56°F), making it significantly milder than January, which has a minimum of -18°C (0°F) and an average temperature of only 2°C (35°F). Additionally, April tends to be wetter, with 137 mm (5.4 in) of precipitation over 12 days, while January experiences 87 mm (3.4 in) across just 9 days. Humidity levels are similar in both months, with April at 84% and January at 87%. For a deeper insight into January weather, check out Louisville weather in January.
When comparing the weather in April and February, it's evident that April ushers in milder temperatures and a broader range of warmth. In April, temperatures range from a minimum of -3°C (27°F) to a maximum of 29°C (84°F), with an average of 13°C (56°F). On the other hand, February experiences colder conditions, with temperatures ranging from a low of -18°C (0°F) to a high of 26°C (79°F) and an average temperature of 4°C (40°F). Both months see a fair amount of precipitation, with April receiving 137 mm (5.4 in) over 12 days and February slightly less at 128 mm (5.0 in) over 13 days. Interestingly, humidity remains relatively consistent between the two months, with April at 84% and February at 85%. For more details on February weather, you can check out Louisville weather in February.
In comparing the weather of April and March, one can observe notable differences in temperature and precipitation patterns. April typically experiences milder temperatures, with an average of 13°C (56°F) and a maximum of 29°C (84°F), compared to the cooler March average of 9°C (48°F) and a peak of 27°C (81°F). Precipitation remains relatively similar, with April receiving 137 mm (5.4 in) over 12 days and March slightly less at 132 mm (5.2 in) over 13 days. Humidity levels are also comparable, with April at 84% and March at 86%. For more detailed information, check Louisville weather in March.
April and May showcase a notable transition in weather patterns. In April, temperatures fluctuate more dramatically, with a minimum of -3°C (27°F) and a maximum reaching 29°C (84°F). The month sees an average temperature of 13°C (56°F) and substantial precipitation, totaling 137 mm (5.4 in) over 12 days, alongside higher humidity levels at 84%. In contrast, May brings a warmer climate, with minimum temperatures starting at 0°C (33°F) and reaching a maximum of 33°C (92°F). The average rises significantly to 20°C (67°F), while precipitation is slightly lower at 128 mm (5.0 in), occurring over 14 days, and humidity decreases to 79%. For more specific details about the weather in Louisville during this month, you can visit Louisville weather in May.
In comparing the weather of April and June, we see a marked shift in temperature and precipitation. April typically experiences cooler temperatures, with a minimum of -3°C (27°F) and an average of 13°C (56°F), while June boasts warmer averages, starting from a minimum of 9°C (49°F) and reaching an average of 24°C (75°F). Additionally, June's maximum temperatures can soar up to 34°C (93°F), compared to April's peak of 29°C (84°F). Both months see a similar amount of precipitation, with April receiving 137 mm (5.4 in) and June slightly higher at 151 mm (5.9 in), both across 12 rainy days. Humidity levels remain relatively close, with April at 84% and June a touch lower at 82%. For more detailed insights, check out Louisville weather in June.
April and July exhibit notable differences in weather patterns. In April, temperatures range from a chilly -3°C (27°F) at night to a pleasant average of 13°C (56°F), hitting highs of 29°C (84°F) during the day. This month also sees considerable precipitation, with 137 mm (5.4 in) spread over 12 days, contributing to a relatively high humidity level of 84%. In contrast, July brings warmer temperatures, with a minimum of 15°C (60°F) and an average of 26°C (79°F), topping out at a hot 35°C (95°F). Precipitation decreases to 98 mm (3.9 in) over 11 days, accompanied by slightly lower humidity at 79%. For more detailed insights on July weather, visit Louisville weather in July.
April and August present contrasting weather conditions. In April, temperatures can dip to a chilly -3°C (27°F) at their lowest, though the average climbs to a mild 13°C (56°F), with peaks reaching up to 29°C (84°F). This month also experiences higher precipitation, totaling 137 mm (5.4 in) over approximately 12 rainy days, along with a notable humidity level of 84%. In comparison, August offers warmer weather with a minimum temperature of 13°C (56°F), an average of 25°C (76°F), and maximums soaring to 35°C (95°F). Precipitation decreases to 94 mm (3.7 in) over about 11 days, and the humidity drops to 70%. For a detailed look at August weather, you can refer to Louisville weather in August.
When comparing the weather in April and September, there are notable differences in temperature and precipitation patterns. April experiences a wider temperature range, with nighttime lows plunging to -3°C (27°F) and daytime highs reaching up to 29°C (84°F). In contrast, September offers milder temperatures, with minimums around 8°C (47°F) and maximums rising to 36°C (97°F), creating a much more consistent warmth throughout the day. Additionally, April sees higher precipitation levels at 137 mm (5.4 in) over 12 days, while September has slightly less rain at 112 mm (4.4 in) across just 8 days. Humidity levels are also higher in April (84%) compared to September (69%), making the latter feel more comfortable. For those interested in the specifics of September weather, check out Louisville weather in September.
April and October offer contrasting weather experiences. In April, temperatures can range from a chilly -3°C (27°F) to a warm 29°C (84°F), with an average of 13°C (56°F), and significant rainfall of 137 mm (5.4 in) over about 12 days. April's high humidity level of 84% can make the air feel quite damp. In comparison, October typically shows milder mornings with temperatures starting at -1°C (31°F) and reaching a warm daytime maximum of 35°C (96°F), averaging around 16°C (60°F). With less precipitation at 98 mm (3.9 in) over 10 days and lower humidity at 76%, October generally feels more comfortable. For more insights, check out Louisville weather in October.
April and November present contrasting weather patterns, showcasing the transition between spring and late autumn. In April, temperatures range from a chilly minimum of -3°C (27°F) to a warm maximum of 29°C (84°F), with an average of 13°C (56°F). The month is marked by higher precipitation, totaling 137 mm (5.4 in) over 12 days, and a humidity level of 84%. In contrast, November experiences colder temperatures with a minimum of -10°C (14°F) and an average of 7°C (45°F), peaking at 27°C (80°F). This month sees less precipitation, with 88 mm (3.5 in) over just 9 days, and slightly higher humidity at 88%. For more detailed insights on November weather, you can visit Louisville weather in November.
In April, temperatures are generally milder, ranging from a low of -3°C (27°F) to a high of 29°C (84°F), with an average of 13°C (56°F). The month sees significant precipitation, averaging 137 mm (5.4 in) over approximately 12 days, and humidity levels are relatively high at 84%. In contrast, December experiences colder weather, with temperatures ranging from -14°C (8°F) at night to a maximum of 22°C (71°F), averaging at 5°C (41°F). Although December has less precipitation at 106 mm (4.2 in) over about 10 days, humidity is slightly higher at 87%. For more details on December's weather, check out Louisville weather in December.
April in Louisville marks a distinct transition from the chill of winter to the warmth of spring. With an average temperature that climbs noticeably compared to the colder months, residents experience a refreshing break as nature bursts into bloom. However, this month is also characterized by higher humidity levels and frequent rain, contributing to a total precipitation of 137 mm over about 12 days. This makes April a uniquely vibrant and occasionally unpredictable month, differing greatly from the drier, more stable conditions found in summer. For a deeper dive into the seasonal shifts, explore more about the year-round climate in Louisville here.