April Weather in Mammoth Lakes, United States

Last updated: February 24, 2025

April in Mammoth Lakes, United States brings a dynamic blend of spring warmth and lingering winter chill. With maximum temperatures reaching 18°C (65°F), travelers can enjoy the transition into milder days, while average temperatures hover around 2°C (36°F) and lows dip to a brisk -15°C (5°F). Precipitation is likely, as April sees about 49 mm (1.9 in) of rainfall over approximately 6 days, contributing to a relatively high humidity level of 72%. This mix of weather makes for a breathtaking backdrop of melting snow and vibrant spring scenery—perfect for outdoor enthusiasts eager to explore the stunning landscapes of Mammoth Lakes.

April Temperature in Mammoth Lakes

In Mammoth Lakes, United States, April marks a noticeable transition as spring begins to take hold. With temperatures ranging from a minimum of -15°C (5°F) to a maximum of 18°C (65°F), the average climbs to 2°C (36°F), reflecting the gradual warming trend following the cold winter months. This sharp increase is evident when compared to the preceding months, where averages were consistently below freezing. Melting snow and budding flora create a vibrant landscape, inviting outdoor enthusiasts to embrace the season's fresh offerings. As daylight lengthens, the crisp air of early spring gives way to pleasantly mild afternoons, making April a perfect time to explore the stunning natural beauty of the area.

April Weather in Mammoth Lakes: Daily Temperature Highs, Lows, and Averages

The chart illustrates April temperature patterns in Mammoth Lakes, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec242528354356646355443525
Data source: Temperature data for Mammoth Lakes 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 Mammoth Lakes

In April, Mammoth Lakes experiences a noticeable decline in precipitation, with only 49 mm (1.9 in) of rain falling over about 6 days. This marks a significant drop compared to the wetter months earlier in the year, such as January and February, both seeing around 130 mm of precipitation. As spring unfolds, the region transitions from the heavier rains of late winter to a drier pattern, setting the stage for warmer and sunnier days ahead. This trend continues into May, where precipitation decreases further to 40 mm (1.6 in), indicating a seasonal shift that many locals eagerly anticipate.

April Precipitation Trends in Mammoth Lakes

The chart displays monthly precipitation patterns in Mammoth Lakes, 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.
JanFebMarAprMayJunJulAugSepOctNovDec1301298849401117119234981
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in Mammoth Lakes

In April, Mammoth Lakes experiences a notable dip in humidity, averaging 72%, a significant decrease compared to the wetter winter months. This reduction signals the transition into drier conditions, with humidity steadily diminishing as spring progresses. Following April, May ushers in even lower humidity levels at 58%, setting the stage for the drier summer months ahead. The trend reveals a clear pattern: as the year advances towards summer, the air quality becomes notably crisper, providing a refreshing contrast to the earlier months characterized by higher humidity. Such shifts not only influence the local climate but also enhance the outdoor experience for visitors and residents alike.

April Average Humidity in Mammoth Lakes

This chart illustrates the average monthly humidity levels in Mammoth Lakes, 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.
JanFebMarAprMayJunJulAugSepOctNovDec82%85%80%72%58%49%36%30%42%59%78%79%
Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in Mammoth Lakes

In April, Mammoth Lakes experiences a dramatic spike in the UV Index, soaring to 13 with an extreme exposure category, which signals a significant rise in sun intensity compared to previous months. With just a 10-minute burn time, it's crucial for outdoor enthusiasts to be diligent about sun protection. This trend of increasing UV levels persists throughout the spring and summer, remaining consistently high at UV Index 13 until late August. The pattern illustrates the need for awareness and caution as sunny days beckon, urging visitors to explore while also safeguarding their skin. For detailed information on daily UV forecasts, visit Mammoth Lakes UV Index.

Maximum UV Index Levels in Mammoth Lakes for April

The chart shows the monthly maximum UV Index (UVI) for Mammoth Lakes 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.
JanFebMarAprMayJunJulAugSepOctNovDec5710131313131210864
Data source: Mammoth Lakes 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 Mammoth Lakes

As winter gives way to spring, April shines brightly in Mammoth Lakes, boasting 321 hours of sunlight—an impressive increase from the 282 hours enjoyed in March. This trend of rising daylight hours continues into May, where the sun generously offers 367 hours, inviting outdoor enthusiasts to embrace the beauty of the surrounding nature. The gradual climb from winter’s shorter days to the vibrant and sunlit spring and summer months reflects a clear transition, providing both residents and visitors ample opportunity to explore the scenic splendor of the area under the warm embrace of the sun. With each passing month, the increasing sunshine becomes a herald of adventure, signaling the arrival of long-awaited activities under clear blue skies.

Monthly Sunshine Duration in Mammoth Lakes: April Highlighted

The April sunshine duration represents the total number of hours Mammoth Lakes 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.
JanFebMarAprMayJunJulAugSepOctNovDec171h230h282h321h367h388h391h364h325h294h243h211h
Data source: Mammoth Lakes April Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Mammoth Lakes During April

April in Mammoth Lakes ushers in a notable shift towards sunnier days, with a brightened likelihood of sunshine at 72%. This increase follows the patterns established in the early spring months, where March holds a respectable 55%, and hints at the warming trend leading into May, which boasts an even sunnier 79%. As winter recedes, the region enjoys a gradual elevation in sunshine probabilities, setting the stage for longer, brighter days ahead. With April’s cheerful forecast, it marks a perfect time for locals and visitors alike to embrace the outdoors and savor the stunning landscapes bathed in spring sunlight.

Percentage of Sunny Days in April in Mammoth Lakes

The chart illustrates the percentage of sunny days in Mammoth Lakes 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 Mammoth Lakes experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec48%63%55%72%79%81%68%91%90%65%67%43%
Data source: Mammoth Lakes April chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Mammoth Lakes in April

As spring unfolds in Mammoth Lakes, April brings a delightful increase in daylight, with 13 hours illuminating the days. This marks a notable rise from the 11 hours observed in March, reflecting the transitioning seasons and the growing warmth of the sun. The trend continues into May, where daylight peaks at 14 hours, before gradually tapering off in the summer months. Each month showcases a natural rhythm, with shorter days in winter transitioning to longer, sunlit hours in spring and summer, before receding back into the cozy embrace of fall. This pattern not only enhances daily activities but also invites residents and visitors alike to embrace the beauty of the outdoors in the blossoming landscape.

Average Daylight Hours in Mammoth Lakes for April

The chart illustrates the variation in daylight duration in Mammoth Lakes throughout the year, with April highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 52m10h 48m11h 59m13h 12m14h 13m14h 43m14h 26m13h 32m12h 22m11h 9m10h 6m9h 34m
Data source: Mammoth Lakes daylight hours, calculated by summing the hours between sunrise and sunset for each day.

April Winds in Mammoth Lakes

In Mammoth Lakes, April ushers in a gentle increase in wind speed, with averages reaching 2.3 m/s (5 mph), a slight uptick from March's 2.2 m/s (5 mph). This trend marks the transition into spring, where the breezes begin to invigorate the landscape, providing a refreshing contrast to the stillness of winter. As the month progresses into May, wind speeds remain steady, suggesting a consistent flow of air that enhances the area's refreshing atmosphere. Notably, the summer months see a minor dip, with winds dropping to 1.9 m/s (4 mph) in July, showcasing a seasonal ebb and flow that characterizes the climate of Mammoth Lakes.

Average April Wind Speed in Mammoth Lakes

The chart displays monthly wind speed patterns in Mammoth Lakes, 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.
JanFebMarAprMayJunJulAugSepOctNovDec2.02.02.22.3 m/s2.32.41.92.12.02.31.82.4
Data source: Mammoth Lakes April wind data, generated using information from the Copernicus Climate Change Service.

How April Weather in Mammoth Lakes Compares to Other Months

The weather in Mammoth Lakes 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 Mammoth Lakes and find detailed weather information for every month.

When comparing the weather in January to that of April, January is significantly colder, with temperatures ranging from a minimum of -23°C (-9°F) to a maximum of 10°C (51°F) and an average of -5°C (24°F). In contrast, April sees milder conditions, with temperatures fluctuating between -15°C (5°F) and 18°C (65°F), averaging around 2°C (36°F). April also experiences less precipitation, averaging 49 mm (1.9 in) over 6 days, compared to January’s higher total of 130 mm (5.1 in) over 7 days. Humidity levels are slightly lower in April at 72%, compared to January's 82%. For more details on January weather patterns, visit Mammoth Lakes weather in January.

When comparing the weather in April and February, April tends to be significantly milder with average temperatures rising to 2°C (36°F), while February is much colder, featuring an average temperature of -4°C (25°F). The temperature range in April reaches a maximum of 18°C (65°F), making it the warmer month, in contrast to February's max of only 13°C (56°F). Additionally, precipitation is heavier in February, with 129 mm (5.1 in) falling over 9 days, compared to April's 49 mm (1.9 in) spread over just 6 days. The humidity levels also reflect February's chill, standing at 85%, higher than April's 72%. For a detailed look at February's weather, visit Mammoth Lakes weather in February.

April weather in Mammoth Lakes sees a noticeable warming trend compared to March, with average temperatures rising from -2°C (28°F) in March to a more mild 2°C (36°F) in April. The minimum temperature in April is also less severe, dipping to -15°C (5°F), compared to -20°C (-4°F) in March. Precipitation decreases in April to 49 mm (1.9 in) over 6 days, a reduction from March's 88 mm (3.5 in) over 10 days, indicating drier conditions as spring approaches. Additionally, humidity levels slightly decrease from 80% in March to 72% in April, contributing to a more comfortable atmosphere. For more detailed insights, you can check out the Mammoth Lakes weather in March.

April and May exhibit notable differences in weather. In April, temperatures range from a minimum of -15°C (5°F) to a maximum of 18°C (65°F), with an average of 2°C (36°F). The month sees approximately 49 mm (1.9 in) of precipitation over 6 days, and the humidity sits at a relatively high 72%. In contrast, May offers a milder climate with temperatures ranging from -12°C (11°F) to a warmer maximum of 25°C (78°F) and an average of 6°C (43°F). Although May experiences slightly less precipitation at 40 mm (1.6 in) over 9 days, the humidity drops to 58%, creating a more comfortable atmosphere. For more details, you can check Mammoth Lakes weather in May.

April and June present contrasting weather conditions in Mammoth Lakes. In April, temperatures range from a chilly -15°C (5°F) at night to a mild 18°C (65°F) during the day, with an average of 2°C (36°F). The month experiences 49 mm (1.9 in) of precipitation over six days, paired with a relatively high humidity of 72%. In comparison, June warms up significantly, with nighttime temperatures only dipping to -4°C (25°F), while daytime highs can reach 29°C (84°F) and an average temperature of 14°C (57°F). Precipitation drops notably to just 11 mm (0.4 in) over three days, and humidity falls to a more comfortable 49%. For more details on the weather, check out Mammoth Lakes weather in June.

April and July present stark contrasts in weather. In April, temperatures range from a chilly minimum of -15°C (5°F) to a comfortable maximum of 18°C (65°F), with an average temperature of around 2°C (36°F). The month experiences about 49 mm (1.9 in) of precipitation over six days, accompanied by relatively high humidity at 72%. In contrast, July boasts much warmer conditions, with temperatures ranging from a minimum of 4°C (39°F) to a sweltering maximum of 31°C (87°F) and an average of 18°C (64°F). Precipitation drops significantly to just 17 mm (0.7 in) over four days, and humidity decreases to 36%. For a more detailed look at July's climate, check out Mammoth Lakes weather in July.

April and August present strikingly contrasting weather patterns. In April, temperatures range from a chilly minimum of -15°C (5°F) to a mild maximum of 18°C (65°F), with an average of 2°C (36°F). This month is characterized by higher humidity at 72% and more precipitation, totaling 49 mm (1.9 in) over about 6 days. In contrast, August offers a more temperate climate, with a minimum temperature of 3°C (38°F) and a maximum reaching 30°C (86°F), leading to a much warmer average of 17°C (63°F). The humidity drops significantly to 30%, and precipitation is quite low at just 11 mm (0.4 in) over 3 days. For more details on the weather during this month, check out Mammoth Lakes weather in August.

April weather in Mammoth Lakes is quite chilly, with temperatures ranging from a minimum of -15°C (5°F) to a maximum of 18°C (65°F), and an average of just 2°C (36°F). The month sees relatively high precipitation, averaging 49 mm (1.9 inches) over about 6 days, accompanied by a humidity level of 72%. In contrast, September brings significantly warmer temperatures, with a minimum of -6°C (22°F), an average of 13°C (56°F), and a maximum reaching 30°C (86°F). Precipitation drops dramatically to just 9 mm (0.4 inches) over 2 days, and humidity decreases to 42%. Overall, September offers a much more pleasant and dry climate for outdoor activities. For more details on September weather, you can check Mammoth Lakes weather in September.

April and October present quite different weather patterns. In April, temperatures can dip as low as -15°C (5°F), with an average of 2°C (36°F) and a maximum of 18°C (65°F). The month sees about 49 mm (1.9 in) of precipitation spread over approximately 6 days, contributing to a relatively high humidity level of 72%. In contrast, October offers milder conditions, with minimum temperatures around -10°C (14°F), an average of 7°C (44°F), and a warmer maximum of 24°C (75°F). Precipitation is significantly less at 23 mm (0.9 in) over just one day, leading to lower humidity levels of 59%. For more insights into October weather in this region, visit Mammoth Lakes weather in October.

April and November in Mammoth Lakes share similar average temperatures, both hovering around 2°C (36°F), but they exhibit some key differences in their overall climatic conditions. In April, temperatures can range from a low of -15°C (5°F) to a high of 18°C (65°F), while November sees slightly lower temperatures, with a minimum of -17°C (2°F) and a maximum of 19°C (66°F). Precipitation levels are comparable, with April recording 49 mm (1.9 in) over 6 days, compared to November's 48 mm (1.9 in) over just 4 days. Notably, November tends to have higher humidity levels at 78%, compared to April's 72%. For more detailed information on November weather, you can visit Mammoth Lakes weather in November.

April and December present contrasting weather patterns. In April, temperatures range from a chilly -15°C (5°F) to a mild 18°C (65°F), with an average of 2°C (36°F). The month sees an average of 49 mm (1.9 in) of precipitation over about 6 days, accompanied by a humidity level of 72%. In contrast, December brings colder temperatures, with a minimum of -19°C (-2°F), an average of -4°C (25°F), and a maximum of only 12°C (53°F). Precipitation increases to 81 mm (3.2 in) spread over approximately 7 days, along with a slightly higher humidity of 79%. For more specific details about winter conditions, you can check out Mammoth Lakes weather in December.

Compare Mammoth Lakes's Climate with Cities Worldwide

Conclusion: What to Expect From April Weather in Mammoth Lakes

As April unfolds in Mammoth Lakes, the weather begins to shift, ushering in a transition that stands in stark contrast to the chill of winter months. Temperatures start to rise with a pleasant maximum around 18°C, while the average takes a noticeable leap from the frigid lows of January and February. Though April still experiences the bite of cold nights, dipping as low as -15°C, the overall atmosphere feels rejuvenating, especially with 72% humidity that enhances the freshness of spring. Precipitation remains modest at 49 mm over just a handful of days, suggesting that while spring showers may visit, they are not yet a dominant force. For a deeper understanding of the region's weather patterns, explore the link: Mammoth Lakes Climate.