Last updated: February 24, 2025
April in Yosemite Valley, United States, presents a dramatic interplay of weather conditions, making it a captivating time for visitors. With maximum temperatures reaching 16°C (60°F) and an average of 2°C (36°F), the valley awakens from winter's embrace. However, the month can also plunge to a minimum of -18°C (0°F), showcasing the region's fluctuations. Precipitation is notable, with 102 mm (4.0 in) falling over approximately 8 days, contributing to the lush scenery that emerges with spring. Coupled with a humidity level of 72%, these conditions create a unique environment that highlights Yosemite's natural beauty and charm during this transitional season.
In Yosemite Valley, April marks a significant transition as winter gives way to the early hints of spring. Temperatures begin to rise, with averages climbing to 2°C (36°F), signaling a shift from the biting cold of previous months. The minimum temperature remains chilly at -18°C (0°F), yet the maximum can reach a pleasant 16°C (60°F), inviting visitors to explore the stunning landscapes that begin to awaken. This time of year witnesses a sharp contrast compared to the depths of winter, epitomized by a gradual warming trend that paves the way for warmer days ahead. Enjoying the beauty of Yosemite's iconic vistas under clearer skies becomes increasingly appealing as nature stirs from its frost-kissed slumber.
In April, Yosemite Valley experiences a significant drop in precipitation, receiving 102 mm (4.0 in) of rain over just 8 days, marking a shift from the wetter winter months. Comparatively, this is a notable decline from the 227 mm (9.0 in) in January and 226 mm (8.9 in) in February, highlighting the transition into spring. As temperatures begin to rise and the snow melts, the valley starts to bloom, yet April's rainfall is relatively modest compared to earlier months. This pattern continues into May, where precipitation further decreases to 68 mm (2.7 in), indicating the valley is moving towards the dry summer season. Overall, April serves as a pivotal month that bridges the wetness of winter to the drier conditions ahead, signaling both a change in climate and the burgeoning of new life.
In April, Yosemite Valley experiences a noticeable drop in humidity, with levels averaging 72%—a shift from the higher humidity of previous months, like February's 85% and January's 82%. This transition heralds the arrival of spring, as the air becomes drier in anticipation of the warmer summer months ahead. Following April, humidity continues to decline, reaching a low of just 36% in July. This trend highlights a pattern where humidity gradually decreases as the seasons progress, peaking in the colder months and dipping significantly during the heat of summer, before rising again as fall approaches. With its unique microclimate, Yosemite Valley offers a refreshing change in humidity that complements its breathtaking natural beauty throughout the year.
As spring arrives in Yosemite Valley, the UV Index surges dramatically, reaching an extreme 11 in April, which marks a significant climb from the 9 recorded in March. This sharp increase signals a shift in exposure risk, with a burn time decreasing to just 10 minutes for unprotected skin. This trend continues into May and June, where the UV Index holds steady at 12, reinforcing the importance of sun safety as outdoor enthusiasts flock to the stunning landscapes. By summer, the UV ratings maintain their extreme status, reminding visitors to take necessary precautions. As the months progress towards fall, UV levels gradually ease, landing at 10 in September and 7 in October. Being aware of these trends ensures a safer and more enjoyable experience while exploring the natural beauty of Yosemite. For more detailed information, check out the Yosemite Valley UV Index.
UV Risk Categories
April in Yosemite Valley welcomes a delightful surge in sunshine, with 318 hours illuminating the landscape, embodying the essence of spring. This increase is part of a broader trend as daylight hours have steadily climbed since January's 170 hours, creating an inviting atmosphere for both adventurers and nature enthusiasts. The valley's sunlit beauty continues to peak in May and June, with sunlight reaching 366 and 388 hours respectively, but the growth in April is particularly striking. As the month unfolds, the vibrant colors of blooming wildflowers and melting snowcaps create a captivating canvas, making it a perfect time to experience the natural wonders that Yosemite has to offer.
As spring unfolds in Yosemite Valley, April brings a noticeable shift in weather patterns, boasting a 69% chance of sunny days. This marks a significant leap from the earlier months, where January and March linger around the mid-40s to low 50s for sunshine. With May approaching, the likelihood of clear skies skyrockets to 80%, heralding the full bloom of spring and a delightful prelude to summer. This trend highlights a gradual transition toward warmer and sunnier weather, inviting outdoor enthusiasts to bask in the beauty of the valley as it comes alive with vibrant colors and crisp air.
As spring unfolds in Yosemite Valley, April heralds a significant increase in daylight, with around 13 hours of sunshine compared to just 11 hours in March. This delightful transition marks a shift towards longer, brighter days, creating the perfect backdrop for outdoor adventures and the blooming of nature. With each passing month, daylight continues to extend, peaking at 14 hours in May and June, before gradually tapering off as summer gives way to fall. This gradual increase not only enhances the park's stunning landscapes but also invites visitors to embrace the beauty of the season, making April an ideal time to experience Yosemite's breathtaking vistas.
In Yosemite Valley, the month of April brings with it a gentle breeze, with an average wind speed of 2.0 m/s (4 mph), slightly lower than the steady 2.1 m/s (5 mph) that characterizes the earlier months of the year. This trend of mild winds continues into May, suggesting a shift towards calmer conditions as spring unfolds. Notably, April's wind speed aligns with patterns seen in subsequent months, where similar speeds are observed, fostering a tranquil atmosphere perfect for outdoor exploration. As the valley blooms into spring, the soft whispers of the April wind invite visitors to experience Yosemite's breathtaking landscapes in a soothing, serene setting.
The weather in Yosemite Valley 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 Yosemite Valley and find detailed weather information for every month.
When comparing the weather in January and April, there are notable differences in temperature and precipitation patterns. January features colder temperatures, with an average around -3°C (27°F) and maximums reaching 11°C (51°F), while April sees a milder average of 2°C (36°F) and a maximum of 16°C (60°F). Precipitation is more significant in January, totaling 227 mm (9.0 in) over 9 days, compared to April's 102 mm (4.0 in) spread over 8 days. Additionally, January exhibits higher humidity at 82% compared to April's 72%. For more detailed insights on January weather, check out Yosemite Valley weather in January.
When comparing the weather in April and February, it’s clear that April brings a noticeable warm-up. In February, temperatures can drop as low as -21°C (-5°F), with an average of -3°C (27°F) and maximums reaching only 13°C (56°F). In contrast, April sees a milder minimum of -18°C (0°F) and an average of 2°C (36°F), with highs reaching up to 16°C (60°F). Precipitation is also significantly lower in April, with 102 mm (4.0 in) over 8 days, compared to February's 226 mm (8.9 in) spread over 11 days. Additionally, February tends to be more humid at 85%, while April's humidity sits at 72%. For more detailed information, you can check out Yosemite Valley weather in February.
In comparing the weather between March and April, April generally experiences milder temperatures, with a maximum of 16°C (60°F) compared to March's maximum of 13°C (56°F). The average temperature in April is 2°C (36°F), a noticeable increase from March's average of -2°C (29°F). While April sees less precipitation overall, with 102 mm (4.0 in) over 8 days, March is considerably wetter, receiving 209 mm (8.2 in) across 13 days. Humidity levels are slightly lower in April at 72%, compared to a higher 80% in March. For more detailed weather conditions, you can check Yosemite Valley weather in March.
April tends to be cooler and wetter compared to May, with average temperatures hovering around 2°C (36°F) and experiencing a maximum of 16°C (60°F). During this month, precipitation is higher, totaling 102 mm (4.0 in) across 8 days, and humidity remains relatively high at 72%. In contrast, May shows a slight rise in temperatures, with an average of 6°C (43°F) and a maximum of 24°C (75°F), while precipitation decreases to 68 mm (2.7 in) over 11 days. The humidity also drops to 58%, contributing to a more pleasant atmosphere. For more specific details on conditions during this time, you can check the Yosemite Valley weather in May.
April and June showcase a significant contrast in weather patterns. In April, temperatures are generally chilly, with a minimum of -18°C (0°F) and an average of just 2°C (36°F), peaking at 16°C (60°F). Precipitation is relatively high, totaling 102 mm (4.0 in) over about 8 days, and the humidity lingers at a moist 72%. In contrast, June brings milder temperatures, with minimums around -5°C (24°F) and averages reaching 13°C (55°F). The maximums can be pleasant, hitting 27°C (81°F), and precipitation drops significantly to 20 mm (0.8 in) over only 5 days, accompanied by lower humidity at 49%. For a closer look at what to expect during June, you can check out Yosemite Valley weather in June.
April and July present stark contrasts in weather conditions. In April, temperatures range from a chilly minimum of -18°C (0°F) to a mild maximum of 16°C (60°F), with an average of 2°C (36°F). The month experiences relatively high precipitation at 102 mm (4.0 in) over 8 days and a humidity level of 72%. In contrast, July boasts significantly warmer temperatures, with a minimum of 3°C (37°F), an average of 17°C (63°F), and a comfortable maximum of 29°C (85°F). Additionally, July sees much less precipitation, only 24 mm (0.9 in) over 6 days, and lower humidity at 36%. For a closer look at the weather during this summer month, check out Yosemite Valley weather in July.
April and August present quite contrasting weather conditions. In April, temperatures range from a chilly minimum of -18°C (0°F) to a moderate maximum of 16°C (60°F), with an average temperature around 2°C (36°F). This month sees a significant amount of precipitation, with 102 mm (4.0 in) falling over about eight days, contributing to a higher humidity level of 72%. In contrast, August brings much warmer temperatures, with a comfortable average of 16°C (62°F) and maximums reaching up to 29°C (84°F). Precipitation drops dramatically to just 17 mm (0.7 in) spread over five days, and humidity decreases to a more pleasant 30%. For more detailed weather insights during this summer month, check out Yosemite Valley weather in August.
April and September exhibit notable differences in weather conditions. In April, temperatures range from a frigid low of -18°C (0°F) to a maximum of 16°C (60°F), with an average of just 2°C (36°F). This month also sees considerable precipitation, accumulating to 102 mm (4.0 in) over about 8 days, and maintains a humidity level of 72%. In contrast, September enjoys milder standards, with temperatures varying from a low of -8°C (18°F) to a warm high of 28°C (83°F) and an average of 13°C (55°F). The month experiences significantly less rainfall, totaling only 17 mm (0.7 in) across 4 days, and a humidity of 42%. For those interested in understanding more about the specifics of September weather, you can visit Yosemite Valley weather in September.
April and October showcase distinct weather patterns, reflecting the transition between seasons. In April, temperatures range from a chilly -18°C (0°F) at night to a mild 16°C (60°F) during the day, with an average temperature of 2°C (36°F). This month experiences higher precipitation, totaling 102 mm (4.0 in) over about 8 days, coupled with a humidity level of 72%. In contrast, October offers more moderate temperatures, with a minimum of -10°C (15°F) and a maximum reaching 24°C (75°F), resulting in a pleasant average of 7°C (44°F). Rainfall is significantly reduced to 43 mm (1.7 in) over just 3 days, and humidity falls to 59%. This shift highlights October's drier and warmer climate compared to the wetter and cooler April. For more detailed insights about October weather, you can check Yosemite Valley weather in October.
April and November exhibit similar average temperatures of around 2°C (36°F), but their extremes differ slightly, with November experiencing a lower minimum temperature of -20°C (-4°F) compared to April's -18°C (0°F). Both months receive comparable amounts of precipitation, with April seeing 102 mm (4.0 in) over approximately 8 days, while November has slightly less at 98 mm (3.9 in) and only 6 rainy days. Humidity levels are higher in November at 78%, compared to April's 72%, making November feel more damp. For more specifics on November weather, you can check Yosemite Valley weather in November.
Comparing the weather in April and December reveals distinct seasonal differences. In April, temperatures can range from a chilly -18°C (0°F) to a milder 16°C (60°F), with an average temperature of 2°C (36°F). This month typically sees about 102 mm (4.0 in) of precipitation over approximately 8 days, and the humidity hovers around 72%. In contrast, December experiences a slightly colder range with minimum temperatures of -17°C (1°F) and maximum temperatures reaching 12°C (55°F), resulting in an average of -3°C (27°F). This month brings more precipitation, totaling around 160 mm (6.3 in) over about 10 days, along with higher humidity levels at 79%. For more specifics about conditions in December, you can refer to Yosemite Valley weather in December.
April in Yosemite Valley ushers in a refreshing transition as temperatures begin to rise, with milder days contrasting sharply against the previous winter chill. Unlike the bitter cold of earlier months, visitors can enjoy a more temperate atmosphere, albeit with some lingering frosty nights. Alongside an increase in daytime warmth, April also sees higher levels of precipitation, bringing vibrant blooms and lush greenery to the valley, though it can also create occasional, unexpected showers. The combination of moderate humidity and variable weather conditions makes April a unique time to explore this breathtaking landscape. For a deeper look into how these trends fit within the broader seasonal patterns, be sure to check out the Yosemite Valley Climate page.