Last updated: February 24, 2025
In May, Lake Arrowhead experiences a pleasant spring climate characterized by a maximum temperature soaring to 34°C (94°F), while the average settles around a comfortable 17°C (64°F). The chilly nights bring temperatures down to a minimum of 3°C (37°F), creating a delightful contrast. With only 13 mm (0.5 in) of rainfall spread over three days, outdoor activities remain largely uninterrupted. The humidity levels hover at a moderate 45%, ensuring a refreshing environment for residents and visitors alike to enjoy the natural beauty of this picturesque mountain getaway.
In May, Lake Arrowhead begins to embrace the warmth of spring, with temperatures reflecting a notable upward trend from the cooler months. The minimum temperature settles at 3°C (37°F), while the average climbs to a comfortable 17°C (64°F), creating an inviting atmosphere for outdoor activities. The maximum temperature reaches a balmy 34°C (94°F), hinting at the intensifying heat as the season progresses. This increase in warmth, paired with the lush surroundings, makes May a delightful time to enjoy the natural beauty of the area, setting the stage for the even hotter summer months ahead.
May in Lake Arrowhead marks a notable shift in precipitation patterns as spring transitions into summer. With only 13 mm (0.5 in) of rain over 3 days, this month represents a significant drop from the wetter months earlier in the year, such as January and February which averaged over 50 mm of precipitation. April's rainfall of 24 mm hinted at the drying trend, and as temperatures rise, May continues this pattern with markedly less moisture. This reduction in rainfall is a precursor to the drier summer months ahead, including June with its minimal 4 mm. The shift underscores the seasonal nature of Lake Arrowhead’s climate, transitioning from the lush, wet spring to the arid warmth of summer, which many residents and visitors alike eagerly anticipate.
In Lake Arrowhead, May ushers in a pleasant drop in humidity, dipping to 45% from the higher levels seen in early spring. This significant decrease marks the transition into the drier months ahead, with humidity levels continuing to decline further through June and July. Interestingly, the gradual reduction from the winter's 76% peak in January showcases the region’s shift towards a more comfortable and invigorating climate. As summer approaches, residents and visitors alike can relish the crisp and refreshing air, making it an ideal time for outdoor activities. Ultimately, May serves as a pivotal month, bridging the cooler, more humid spring months with the warm, dry days of summer.
As May rolls into Lake Arrowhead, the UV Index remains at a striking 11, highlighting an extreme exposure category similar to April. This consistency suggests that the risk of harm from unprotected sun exposure is significant, necessitating vigilance. With a burn time of just 10 minutes, it's essential to be proactive about sun safety, as outdoor activities without protection can lead to skin damage quickly. The trend this spring shows an upward trajectory in UV levels, peaking in May, which then continues into early summer. For those planning to enjoy the beautiful outdoors, understanding the nuances of the UV Index is crucial. Stay informed and layer up on protection by checking the Lake Arrowhead UV Index regularly.
UV Risk Categories
As spring transitions into summer, May in Lake Arrowhead shines brightly, boasting an impressive 370 hours of sunshine, the pinnacle of brightness that invigorates both nature and those enjoying the great outdoors. This vibrant month marks a significant increase from the previous months, following a steady rise from 190 hours in January to 328 hours in April. The warmth of the sun in May sets the stage for the peak summer months ahead, where June and July slightly outshine it with 379 and 383 hours, respectively. This upward trend creates a flourishing environment perfect for hiking, boating, and basking in the serene beauty of Lake Arrowhead, reminding us that brighter days are just around the corner.
May in Lake Arrowhead heralds a promising shift towards brighter days, with a notable 80% chance of sunny weather. This trend marks the highest likelihood of sunshine since the start of the year, eclipsing even the sunny disposition of the previous months. Following April's 67% and a steady climb from January's 61%, May transitions into more consistently pleasant weather. As summer approaches, the forecast looks increasingly optimistic, with only August and September surpassing May's sunny streak. With this delightful uptick, outdoor adventures and sun-soaked activities are certainly within reach!
In Lake Arrowhead, the transition into May brings a delightful continuation of the longer daylight hours established in April, with the sun gracing the sky for 13 hours each day. This consistency marks a shift from the gradual increase that began in March, setting the stage for an enchanting late spring. As daylight hours peak in June at 14 hours, the month of May stands as a beautiful bridge between the awakening warmth of spring and the vibrant energy of summer. Following May, daylight gradually begins to taper off, hinting at the changing seasons ahead. Overall, the evolution of daylight duration reveals a rhythmic pattern, with increasing hours through spring, culminating in the summer's peak before the slow descent into autumn.
In Lake Arrowhead, May brings a gentle breeze, with average wind speeds hovering around 2.3 m/s (5 mph). This slight fluctuation continues the trend seen in earlier months, where wind speeds maintain a consistent pace throughout the year, rarely straying from the comforting 5 mph mark. As spring transitions into summer, these mild winds create an inviting atmosphere, perfect for outdoor activities like hiking and boating. With only minor variations in speed from January through April, May exemplifies the area's stable climate, suggesting a serene environment that residents and visitors can enjoy amidst the natural beauty of the lake and surrounding mountains.
The weather in Lake Arrowhead 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 Lake Arrowhead and find detailed weather information for every month.
May and January present markedly different weather patterns. In May, temperatures range from a chilly 3°C (37°F) at night to a warm 34°C (94°F) during the day, with an average of 17°C (64°F). The month sees only 13 mm (0.5 in) of precipitation spread over about 3 days and a relatively low humidity of 45%. In contrast, January experiences much cooler conditions, with temperatures dropping to a minimum of -5°C (24°F) during the night and peaking at 24°C (76°F) during the day, averaging 9°C (49°F). Precipitation is significantly higher at 51 mm (2.0 in) over 6 days, accompanied by high humidity levels of 76%. For more details on January weather, check Lake Arrowhead weather in January.
Comparing the weather in May and February reveals distinct differences in temperature and humidity levels. In May, temperatures range from a minimum of 3°C (37°F) to a maximum of 34°C (94°F), with an average of 17°C (64°F), coupled with low precipitation of 13 mm (0.5 in) over just 3 days and a humidity of 45%. In contrast, February experiences cooler temperatures, ranging from a minimum of -4°C (24°F) to a maximum of 25°C (77°F), with a much lower average of 9°C (49°F). February also sees significantly higher precipitation at 56 mm (2.2 in) spread across 6 days and a humidity level of 80%, contributing to a decidedly different atmosphere. For more detailed insights, you can check Lake Arrowhead weather in February.
May exhibits a warmer climate compared to March, with average temperatures ranging from a minimum of 3°C (37°F) to a maximum of 34°C (94°F), while March sees cooler temperatures averaging between -2°C (29°F) and 29°C (84°F). Additionally, May experiences significantly less precipitation, with only 13 mm (0.5 in) over 3 days, compared to March's 52 mm (2.1 in) spread across 9 days. Humidity levels also differ; May has a lower humidity of 45%, while March enjoys a higher humidity level at 69%. This distinct contrast in conditions highlights how spring gradually transitions into summer. For more specific details about March conditions, check the Lake Arrowhead weather in March.
May's weather showcases a marked increase in average temperatures compared to April, with an average of 17°C (64°F) and a maximum of 34°C (94°F), whereas April’s average is slightly cooler at 15°C (60°F), peaking at 32°C (89°F). Despite this rise in temperature, May experiences less rainfall with only 13 mm (0.5 in) over 3 days, in contrast to April's wetter conditions, which recorded 24 mm (0.9 in) over 2 days. Additionally, humidity levels drop in May to 45% compared to April's 57%, making May generally feel drier and warmer. For more details on April's conditions, you can refer to Lake Arrowhead weather in April.
In comparing the weather of May and June, it's evident that June experiences warmer temperatures overall. May features a minimum of 3°C (37°F) and an average of 17°C (64°F), while June starts with a higher minimum of 9°C (48°F) and an average of 23°C (73°F). Furthermore, June can reach scorching highs of 39°C (103°F), compared to May's maximum of 34°C (94°F). Precipitation also differs significantly; May sees a total of 13 mm (0.5 in) over three days, whereas June has only 4 mm (0.1 in) over just one day, resulting in lower humidity levels of 34% in June compared to 45% in May. For more specific details, you can check Lake Arrowhead weather in June.
In May, temperatures in Lake Arrowhead range from a chilly 3°C (37°F) at night to a warm average of 17°C (64°F), peaking at around 34°C (94°F) during the day, with moderate humidity at 45%. The month sees some rainfall, totaling 13 mm (0.5 in) spread over about three days. In contrast, July enjoys significantly warmer temperatures, with minimums of 13°C (55°F) and an average of 26°C (79°F), reaching highs of up to 41°C (106°F). Precipitation is lower, at 12 mm (0.5 in) over just two days, and the humidity drops to a more comfortable 29%. For those looking to explore weather specifics in July, check out Lake Arrowhead weather in July.
May and August exhibit distinct differences in weather patterns. In May, temperatures can range from a cool 3°C (37°F) at night to a warm 34°C (94°F) during the day, averaging around 17°C (64°F). This month typically sees about 13 mm (0.5 in) of precipitation over three days, accompanied by a humidity level of 45%. In contrast, August experiences consistently higher temperatures, with nights starting at a milder 14°C (57°F) and daytime highs soaring to 39°C (103°F), leading to an average temperature of 26°C (79°F). Although August has slightly lower precipitation at 11 mm (0.4 in) over just two days, the humidity drops to a comfortable 28%. For more detailed insights, you can check Lake Arrowhead weather in August.
In May, temperatures range from a chilly minimum of 3°C (37°F) to a warm average of 17°C (64°F), with occasional peaks hitting 34°C (94°F). The month sees about 13 mm (0.5 in) of precipitation over three days and humidity levels at 45%. In contrast, September presents a milder climate, with minimum temperatures at 9°C (48°F) and an average of 23°C (74°F) that can soar to a maximum of 42°C (108°F). This month experiences slightly less precipitation at 9 mm (0.4 in) over just two days, accompanied by a lower humidity level of 41%. For a detailed look at September's weather, check out Lake Arrowhead weather in September.
In comparing the weather between May and October, both months experience similar minimum temperatures around 3°C (37°F). However, October boasts a slightly higher average temperature of 18°C (65°F) compared to May's 17°C (64°F). While May can see maximum temperatures reaching up to 34°C (94°F), October can get even warmer with highs of 36°C (97°F). Precipitation is notably lower in October, with only 8 mm (0.3 in) over just one day, while May has about 13 mm (0.5 in) spread across three days. Additionally, October's humidity also increases to 54%, making it feel a bit more humid than the average 45% in May. For specific insights on October weather in the area, you can check out Lake Arrowhead weather in October.
In May, temperatures range from a chilly 3°C (37°F) to a warm 34°C (94°F), with an average of 17°C (64°F), making it a month characterized by significant warmth and relatively low humidity of 45%. Precipitation during this month is minimal, with just 13 mm (0.5 in) over 3 days. In contrast, November experiences cooler temperatures, with a minimum of -1°C (31°F) and a maximum of 28°C (83°F), averaging around 14°C (57°F). This month also brings slightly higher precipitation, totaling 19 mm (0.8 in) over just 2 days, and a notable increase in humidity at 68%. For more specific weather details, you can check Lake Arrowhead weather in November.
May and December present stark contrasts in weather conditions. In May, temperatures range from a minimum of 3°C (37°F) to a maximum of 34°C (94°F), with an average of 17°C (64°F) and only a modest amount of precipitation at 13 mm (0.5 in) over three days. The humidity is relatively low at 45%, creating a pleasant spring atmosphere. In contrast, December experiences much colder temperatures, with a minimum of -4°C (25°F) and an average of 9°C (49°F), peaking at 24°C (76°F). This month also sees significantly more rainfall, totaling 56 mm (2.2 in) across five days, accompanied by higher humidity levels at 75%. For a more detailed look at December conditions, check out Lake Arrowhead weather in December.
As May unfolds in Lake Arrowhead, the weather marks a delightful shift compared to the cooler months of spring. Temperatures can climb to a maximum of 34°C (94°F), inviting visitors to enjoy outdoor activities amidst the natural beauty. The average temperature hovers around a pleasant 17°C (64°F), making daytime strolls comfortable. Despite a slight chance of rain, with only 13 mm of precipitation over about three days, the overall humidity remains moderate at 45%. This refreshing change heralds the onset of outdoor adventures and scenic escapes, drawing nature enthusiasts and sun-seekers alike. For a deeper understanding of Lake Arrowhead's seasonal patterns, explore the detailed insights at Lake Arrowhead Climate.