May Weather in Mammoth Lakes, United States

Last updated: February 24, 2025

May in Mammoth Lakes, United States offers a captivating mix of spring weather, where temperatures range from a pleasant maximum of 25°C (78°F) to a brisk minimum of -12°C (11°F), settling around an average of 6°C (43°F). Amidst this variability, residents and visitors can expect approximately 40 mm (1.6 in) of precipitation over 9 days, creating a lush, vibrant landscape. With an average humidity level of 58%, the atmosphere feels fresh and invigorating, making it an ideal time for outdoor adventures amidst the stunning alpine scenery.

May Temperature in Mammoth Lakes

In May, Mammoth Lakes begins to shed the heavy blanket of winter, ushering in a refreshing transition as temperatures rise dramatically. The minimum temperature sits at a crisp -12°C (11°F), while the average climbs to a pleasant 6°C (43°F), and the maximum soars to 25°C (78°F), hinting at the warmth of summer just around the corner. This month showcases a remarkable upturn from the chilly spring temperatures of April, highlighting a trend towards milder conditions that not only invigorate the landscape but also invite outdoor enthusiasts to embrace the stunning surroundings. As the snow melts and the days grow longer, May offers an enchanting glimpse of the beauty that awaits in the warmer months.

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

The chart illustrates May 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.

May Precipitation in Mammoth Lakes

In Mammoth Lakes, the month of May experiences a distinct dip in precipitation, receiving just 40 mm (1.6 in) over approximately 9 days. This shift marks a notable decrease compared to earlier months like January and February, which boast over 130 mm of precipitation each. By May, the spring thaw begins to set in, contributing to a lighter and drier atmosphere as the area transitions towards summer. This trend highlights a clear seasonal pattern where the heavier snowmelt and rainfall of the winter months give way to more sporadic showers as the weather warms. As the landscape sheds its winter cloak, May offers a glimpse of the sunny days ahead, albeit with some lingering moisture nourishing the region’s lush scenery.

May Precipitation Trends in Mammoth Lakes

The chart displays monthly precipitation patterns in Mammoth Lakes, with values for each month alongside May's data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how May's conditions compare to those of other months.
JanFebMarAprMayJunJulAugSepOctNovDec1301298849401117119234981
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

May Humidity in Mammoth Lakes

In Mammoth Lakes, May marks a significant shift in humidity as it drops to 58%, heralding the arrival of warmer, drier conditions. This decline is a refreshing change from the consistently high levels seen earlier in the year, where humidity peaks at 85% in February. Following April's 72%, May's lower humidity creates a more comfortable atmosphere, paving the way for outdoor activities amid the stunning natural beauty. As the summer months approach, humidity continues to decrease, reaching its lowest point in July at just 36%, showcasing Mammoth Lakes' transition into a much drier climate. The overall trend reflects a shift from the heavier moisture of winter through to the crisp, invigorating summer air, making May a delightful month to experience the enchanting landscapes of this mountainous region.

May Average Humidity in Mammoth Lakes

This chart illustrates the average monthly humidity levels in Mammoth Lakes, with May's data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, allowing you to see how May's humidity levels compare to other months.
JanFebMarAprMayJunJulAugSepOctNovDec82%85%80%72%58%49%36%30%42%59%78%79%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Mammoth Lakes

As May arrives in Mammoth Lakes, the UV Index remains at a striking 13, signifying extreme exposure levels and a rapid burn time of just 10 minutes. This consolidates a trend observed since April, marking the peak of UV intensity in the spring months. With similar extremes extending into June and July, it's crucial for residents and visitors alike to remain vigilant about sun protection during this time. Observing this trend emphasizes the importance of strategically planning outdoor activities while keeping skin safety in mind. For more detailed information on UV levels, check out Mammoth Lakes UV Index.

Maximum UV Index Levels in Mammoth Lakes for May

The chart shows the monthly maximum UV Index (UVI) for Mammoth Lakes in May, 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 May 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.

May Sunshine in Mammoth Lakes

In Mammoth Lakes, May shines brightly with an impressive 367 hours of sunshine, marking a delightful peak in the spring season. As the year progresses, the town experiences a steady increase in sunlight, jumping from 171 hours in January to this vibrant May total. This upward trend continues into summer, with June and July boasting the most sun exposure—388 and 391 hours, respectively—perfect for outdoor adventures amidst the stunning mountain landscape. However, as autumn approaches, sunshine hours gradually decline, although September still offers a respectable 325 hours. Overall, Mammoth Lakes showcases a compelling seasonal rhythm, where the blossoming month of May stands out as a crucial bridge between the refreshing spring and sunny summer.

Monthly Sunshine Duration in Mammoth Lakes: May Highlighted

The May sunshine duration represents the total number of hours Mammoth Lakes experiences direct sunlight during the month of May, excluding cloudy or obstructed periods. This chart compares the sunshine duration of May with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec171h230h282h321h367h388h391h364h325h294h243h211h
Data source: Mammoth Lakes May Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Mammoth Lakes During May

In Mammoth Lakes, the likelihood of sunny weather steadily increases as spring transitions into summer, peaking in May with a promising 79% chance of sunshine. This upward trend becomes evident as the months progress from January's modest 47%, climbing through February and March, and ultimately reaching a delightful 72% in April. Following May, the potential for sun remains high, with June and August showcasing even greater clarity at 81% and 91% respectively. This trend highlights Mammoth Lakes as an ideal destination for outdoor enthusiasts looking to bask in the sun as the year advances.

Percentage of Sunny Days in May in Mammoth Lakes

The chart illustrates the percentage of sunny days in Mammoth Lakes throughout the year, with May 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 May chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Mammoth Lakes in May

As spring transitions into summer, Mammoth Lakes experiences a delightful increase in daylight hours. Starting with 9 hours in January, the length of day steadily grows, reaching 14 hours by May. This prime month marks the peak of daylight, offering residents and visitors alike ample time to explore the breathtaking landscapes. Following May, the daylight remains consistent at 14 hours through June and July, creating a perfect backdrop for outdoor adventures. As summer wanes, the days gradually shorten, tapering down to 12 hours in September and returning to 10 hours by November. This rhythmic ebb and flow of daylight not only highlights the changing seasons but also fosters a vibrant spirit of exploration and connection to nature throughout the year.

Average Daylight Hours in Mammoth Lakes for May

The chart illustrates the variation in daylight duration in Mammoth Lakes throughout the year, with May 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.

May Winds in Mammoth Lakes

In Mammoth Lakes, May experiences a gentle breeze with an average wind speed of 2.3 m/s (5 mph), mirroring the slightly increasing trend seen since April. As spring unfolds, the winds remain consistent, providing a refreshing contrast to the warmer temperatures of the season. Notably, this month ties with April for speed, before giving way to a gradual increase in wind velocity leading into June, which hits 2.4 m/s (5 mph). The early summer months tend to enjoy a mild but steady airflow, contributing to the region's outdoor charm, making it a delightful time for activities amidst the breathtaking landscapes. Overall, May's gentle winds maintain a pleasant atmosphere, setting the stage for the summer adventures that lie ahead.

Average May Wind Speed in Mammoth Lakes

The chart displays monthly wind speed patterns in Mammoth Lakes, with values for each month shown alongside May's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how May's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec2.02.02.22.32.3 m/s2.41.92.12.02.31.82.4
Data source: Mammoth Lakes May wind data, generated using information from the Copernicus Climate Change Service.

How May 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 May'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 of May and January, it's evident that May is significantly warmer and more variable. In May, temperatures can range from a chilly minimum of -12°C (11°F) to a comfortable maximum of 25°C (78°F), with an average of 6°C (43°F). The month sees 40 mm (1.6 in) of precipitation over approximately 9 days and maintains a moderate humidity level of 58%. In contrast, January is colder, with temperatures dipping between -23°C (-9°F) and a maximum of 10°C (51°F), and an average of -5°C (24°F). This month experiences much heavier precipitation, totaling 130 mm (5.1 in) over 7 days, accompanied by higher humidity at 82%. For more detailed insights, you can check Mammoth Lakes weather in January.

When comparing the weather in May and February, distinct differences emerge in temperature and precipitation. May typically showcases a broader temperature range, with a minimum of -12°C (11°F), an average of 6°C (43°F), and a pleasant maximum of 25°C (78°F). In stark contrast, February experiences much colder conditions, with temperatures ranging from a frigid -21°C (-6°F) to a maximum of just 13°C (56°F). Precipitation also varies significantly; May records 40 mm (1.6 in) over 9 days, while February sees a substantial 129 mm (5.1 in) across the same number of days, leading to a higher humidity level of 85%. For a more detailed overview, you can explore Mammoth Lakes weather in February.

In comparing the weather of May and March, it is evident that May experiences significantly milder temperatures, with averages around 6°C (43°F) compared to March's chilly average of -2°C (28°F). March also sees lower daytime highs, reaching a maximum of only 15°C (58°F), while May can reach up to 25°C (78°F). Precipitation levels differ as well, with March receiving more rainfall at 88 mm (3.5 in) over 10 days, compared to May’s 40 mm (1.6 in) over 9 days. Additionally, humidity is higher in March at 80%, whereas May's humidity sits at a more comfortable 58%. For a more detailed look at March weather, you can check out Mammoth Lakes weather in March.

When comparing the weather in April and May, it is evident that May offers a noticeable increase in temperatures. While April's 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), May sees a minimum of -12°C (11°F) and a much warmer maximum of 25°C (78°F), resulting in an average temperature of 6°C (43°F). Additionally, May experiences slightly lower precipitation levels at 40 mm (1.6 in) over 9 days, compared to April's 49 mm (1.9 in) over just 6 days. Interestingly, April tends to have higher humidity at 72%, compared to May's 58%. For more detailed insights, you can check out Mammoth Lakes weather in April.

The weather in May is characterized by a broader temperature range, with minimums dropping to -12°C (11°F) and maximums reaching 25°C (78°F), resulting in an average temperature of 6°C (43°F). In contrast, June experiences milder conditions, with minimum temperatures of -4°C (25°F) and maximums of 29°C (84°F), leading to a more pleasant average of 14°C (57°F). Additionally, May sees more precipitation, totaling 40 mm (1.6 in) over 9 days, compared to June, which only receives 11 mm (0.4 in) over just 3 days, making it drier and more comfortable. The humidity levels are also lower in June at 49%, compared to 58% in May. For more detailed information about June weather, you can visit Mammoth Lakes weather in June.

In comparing the weather between May and July, notable differences emerge. May experiences a wider temperature range, with lows dipping to -12°C (11°F) and highs reaching up to 25°C (78°F), resulting in an average of 6°C (43°F). The month is also characterized by higher precipitation, averaging 40 mm (1.6 in) over 9 days, and a humidity level of 58%. In contrast, July boasts milder conditions, with minimum temperatures of 4°C (39°F) and maximums peaking at 31°C (87°F), leading to a much warmer average of 18°C (64°F). Precipitation in July is significantly lower at 17 mm (0.7 in) across just 4 days, coupled with reduced humidity at 36%. For more details on July weather specifics, you can check out Mammoth Lakes weather in July.

May and August present quite contrasting weather patterns. In May, temperatures range from a chilly minimum of -12°C (11°F) to a pleasant maximum of 25°C (78°F), with an average of 6°C (43°F). The month is characterized by relatively high humidity at 58% and frequent precipitation, with rain on about 9 days totaling 40 mm (1.6 in). In stark contrast, August offers a much warmer climate, with temperatures varying from a minimum of 3°C (38°F) to a maximum of 30°C (86°F), and an average temperature of 17°C (63°F). The humidity drops significantly to 30%, and precipitation is minimal, occurring on just 3 days with only 11 mm (0.4 in) of rain. For more details on August weather, check out Mammoth Lakes weather in August.

May and September in Mammoth Lakes present contrasting weather patterns. In May, temperatures fluctuate significantly, with a minimum of -12°C (11°F) and a maximum reaching up to 25°C (78°F), resulting in a cool average of 6°C (43°F). The month sees approximately 40 mm (1.6 in) of precipitation over 9 days, accompanied by a humidity level of 58%.

In contrast, September offers milder weather, with minimum temperatures at -6°C (22°F) and a maximum of 30°C (86°F), averaging a pleasant 13°C (56°F). Notably, this month experiences much less precipitation, only around 9 mm (0.4 in) over just 2 days, and a lower humidity level of 42%. For more insights about the September climate, check out Mammoth Lakes weather in September.

May and October exhibit distinct weather characteristics, with both months experiencing a range of temperatures. In May, temperatures can range from a chilly -12°C (11°F) at night to a warm 25°C (78°F) during the day, averaging around 6°C (43°F). This month typically sees about 40 mm (1.6 in) of precipitation over approximately 9 days, with a humidity level of 58%. In contrast, October presents a slightly narrower temperature range, with minimums around -10°C (14°F) and maximums reaching 24°C (75°F), averaging 7°C (44°F). The month is significantly drier, with only 23 mm (0.9 in) of precipitation over just 1 day and humidity rising slightly to 59%. For more detailed insights on conditions specific to October, visit Mammoth Lakes weather in October.

May and November present distinct weather patterns in Mammoth Lakes. In May, temperatures range from a chilly -12°C (11°F) at night to a pleasant 25°C (78°F) during the day, with an average of 6°C (43°F). The month experiences about 40 mm (1.6 in) of precipitation over approximately 9 days, with humidity at 58%. In contrast, November sees cooler conditions, with temperatures dipping to a minimum of -17°C (2°F) and a maximum of 19°C (66°F), averaging around 2°C (35°F). It experiences slightly more precipitation at 48 mm (1.9 in) across just 4 days, but with higher humidity at 78%. For more specific details about conditions in November, you can check Mammoth Lakes weather in November.

May and December in Mammoth Lakes present strikingly different weather patterns. In May, temperatures range from a chilly minimum of -12°C (11°F) to a pleasant maximum of 25°C (78°F), with an average of 6°C (43°F). This month sees relatively moderate precipitation of 40 mm (1.6 in) over 9 days, with humidity around 58%. In contrast, December is marked by much colder temperatures, with a minimum of -19°C (-2°F) and an average of -4°C (25°F) peaking at 12°C (53°F). Precipitation is significantly higher in December, totaling 81 mm (3.2 in) across 7 days, and the humidity rises to 79%. For more detailed information, check out Mammoth Lakes weather in December.

Compare Mammoth Lakes's Climate with Cities Worldwide

Conclusion: What to Expect From May Weather in Mammoth Lakes

As spring fully unfolds in Mammoth Lakes, May brings a refreshing change from the lingering chill of earlier months. With temperatures warming up significantly, days can reach a pleasant 25°C (78°F), offering a delightful escape for outdoor enthusiasts. However, the nights still carry a bite, dipping to around -12°C (11°F), perfect for the last remnants of winter sports or cozy evenings by the fire. Precipitation, while present with roughly 40 mm (1.6 in) over about 9 days, tends to be mild compared to the heavier snowfall of winter. This moderate humidity of 58% adds to the invigorating atmosphere, making May a uniquely captivating month. For more insights into the region's diverse climate, check out Mammoth Lakes Climate.