Last updated: February 24, 2025
In May, Signal Hill, United States experiences mild and pleasant weather, characterized by a maximum temperature of 28°C (82°F) and an average temperature of 17°C (63°F). The month typically sees a minimum of 11°C (53°F), providing comfortable evenings. Although May brings some precipitation, with an average rainfall of 10 mm (0.4 in) over two days, the overall humidity remains at a moderate 70%, contributing to the fresh and invigorating atmosphere. Ideal for outdoor activities, May offers a delightful balance of warmth and refreshing breezes.
In May, Signal Hill experiences a delightful transition into warmer weather, with temperatures ranging from a minimum of 11°C (53°F) to a maximum of 28°C (82°F), yielding an average of 17°C (63°F). This period marks a noticeable warming trend, building on the milder conditions of April, where the maximum temperature reached 32°C (89°F). As spring unfolds, temperatures become increasingly pleasant, inviting residents and visitors to enjoy outdoor activities. The gradual rise in warmth sets the stage for the hotter months ahead, particularly as June approaches, bringing average highs that continue to climb. Overall, May serves as a gentle precursor to the summer heat, characterized by comfortable and inviting days.
In May, Signal Hill experiences a notable decline in precipitation, with only 10 mm (0.4 in) recorded over just two days. This pattern marks a significant drop from the previous months, particularly April, which saw 18 mm over two days. The trend of decreasing rainfall continues into June, where accumulation falls to a mere 3 mm, indicating that the city is transitioning into its dry season. This shift underscores a broader seasonal pattern in Signal Hill, where the spring months gradually give way to drier conditions as summer approaches. Such changes highlight the region's characteristic climate, where variability in precipitation plays a crucial role in shaping local weather dynamics.
In Signal Hill, United States, May brings a sense of stability with humidity levels holding steady at 70%, mirroring the trend established in April. This consistency is part of a broader pattern where spring months exhibit relatively high humidity, peaking in February at 79% before gradually declining. As summer approaches, humidity tends to fluctuate slightly, with June and July maintaining levels around 72% and 73%, respectively. Notably, the overall trend reveals that while the city experiences a high of 79% in winter, humidity levels gradually taper off into the summer months, creating a comfortable climate for outdoor activities as temperatures rise.
As May arrives in Signal Hill, the sun's intensity peaks with a UV Index of 10, categorizing exposure as very high. This notable increase in UV radiation signifies a shift from the earlier months, where the UV Index gradually climbed from a moderate 4 in January to 9 in April. With a burn time of just 15 minutes, it's essential for residents and visitors to protect their skin and be mindful of sun exposure during this month. Following May, June and July will see an even higher risk with an extreme UV Index of 11, highlighting the need for consistent sun safety practices. For detailed information on UV trends and safety, visit Signal Hill UV Index.
UV Risk Categories
May brings a delightful surge of sunshine to Signal Hill, boasting 347 hours of radiant daylight that marks a significant increase from the previous months. As spring blooms, the hours of sunlight progressively rise from 191 hours in January to a peak in June with 362 hours, showcasing a steady climb in brightness and warmth. Each month prior to May sees a gentle incline, culminating in this vibrant springtime month where the days feel longer and more lively. This trend continues into the summer, with July hitting its apex at 379 hours. The sunshine not only brightens the landscape but also invigorates the spirit, making May a truly inviting time in Signal Hill.
In Signal Hill, United States, the likelihood of sunny weather sees some interesting fluctuations throughout the year. While January and February boast a hopeful 62% and 63% chance of sunshine, things start looking brighter in March with a solid 70%. However, as spring progresses into April, the chance drops to 54%, and by May, it dips further to 48%. This trend suggests that early spring might just be the sunniest period, but as summer approaches, the probability for sun regains momentum, peaking in August with a promising 68% and maintaining a solid presence through September and October. Overall, while May may not be the sunniest month, the season offers a delightful mix of weather, paving the way for sunnier days ahead.
In Signal Hill, the daylight duration gradually increases from the start of the year, peaking during the summer months. January and February enjoy a consistent 10 hours of light, but as spring approaches, March brings a slight increase to 11 hours, followed by a more noticeable jump to 13 hours in both April and May. This trend continues into June and July, where daylight reaches its zenith at 14 hours, allowing for long, vibrant days. As summer wanes, the days gradually shorten, with August dropping back to 13 hours. By autumn, sunlight begins to taper off, with 12 hours in September, and reverting to 11 hours in October, before concluding the year with 10 hours in November and 9 hours in December. This clear pattern reflects the natural rhythm of the seasons in Signal Hill, highlighting the shift from longer, sun-filled days in summer to the crisp, shorter days of winter.
In Signal Hill, the month of May offers a gentle breeze, with an average wind speed of 3.2 m/s (7 mph), slightly below the highs witnessed in the preceding months. January begins the year with calmness, averaging just 2.8 m/s, but as winter gives way to spring, wind speeds gradually increase, peaking at 3.3 m/s in both March and June. Interestingly, May balances this trend, maintaining a steady flow reminiscent of the spring's transitional nature. The subsequent summer months see a slight dip, suggesting a seasonal ebb, before wind speeds decrease again into the fall and winter. Overall, May stands as a pivotal point in this yearly rhythm, embodying the mild yet dynamic character of Signal Hill's winds.
The weather in Signal Hill 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 Signal Hill and find detailed weather information for every month.
May and January present distinctly different weather patterns. In May, temperatures typically range from a minimum of 11°C (53°F) to a pleasant average of 17°C (63°F), peaking at 28°C (82°F). The month experiences minimal precipitation with only 10 mm (0.4 in) over about 2 days, coupled with a humidity level of 70%. In contrast, January is cooler, with temperatures spanning from a minimum of 6°C (43°F) to an average of 14°C (58°F), also reaching a maximum of 27°C (82°F). However, January is notably wetter, receiving 61 mm (2.4 in) of rain over approximately 5 days and a slightly higher humidity level of 74%. For more specific weather insights, you can check Signal Hill weather in January.
May and February present notable differences in weather patterns. In May, temperatures range from a minimum of 11°C (53°F) to a pleasant average of 17°C (63°F), peaking at 28°C (82°F), while precipitation is relatively low at just 10 mm (0.4 in) over 2 days, with humidity around 70%. In contrast, February features cooler temperatures, with a minimum of 6°C (43°F) and an average of 14°C (58°F), yet it can also reach up to 28°C (83°F). However, February experiences significantly higher precipitation of 48 mm (1.9 in) spread over 5 days, accompanied by increased humidity at 79%. For a more detailed look at February's weather patterns, you can visit Signal Hill weather in February.
In comparing the weather between May and March, we see a notable increase in temperatures as spring progresses into late spring. May boasts a temperature range with a minimum of 11°C (53°F) and a maximum of 28°C (82°F), accompanied by significantly lower precipitation at just 10 mm (0.4 in) over 2 days. In contrast, March experiences cooler temperatures, with a minimum of 8°C (47°F) and a maximum of 25°C (77°F), but higher precipitation totaling 52 mm (2.1 in) spread across 8 days. The humidity is slightly lower in May at 70% compared to March's 75%, making May generally drier and warmer. For a more detailed look at March weather, you can visit Signal Hill weather in March.
In comparing the weather between April and May, both months share similar minimum and average temperatures, with April slightly cooler at a minimum of 11°C (52°F) compared to May's 11°C (53°F). However, April features a much higher maximum temperature of 32°C (89°F), significantly warmer than May's peak of 28°C (82°F). Precipitation is also notably higher in April, with 18 mm (0.7 in) over 2 days, while May sees only 10 mm (0.4 in) over the same period. Despite these differences, both months maintain a consistent humidity level of 70%. For more details, you can check out Signal Hill weather in April.
May and June showcase a gradual warming trend as spring transitions into summer. In May, temperatures range from a minimum of 11°C (53°F) to a maximum of 28°C (82°F), with an average of 17°C (63°F). This month experiences about 10 mm (0.4 in) of precipitation over 2 days, and humidity sits at a comfortable 70%. In contrast, June sees temperatures increase slightly, with a minimum of 14°C (58°F) and a maximum of 30°C (87°F), averaging 19°C (66°F). Notably, June is much drier, receiving only 3 mm (0.1 in) of precipitation over 0 days, while humidity rises slightly to 72%. For more details, you can check out Signal Hill weather in June.
In comparing the weather between May and July, a noticeable difference in temperature is evident. May has a minimum temperature of 11°C (53°F) and an average of 17°C (63°F), while July starts at a higher minimum of 16°C (61°F) and boasts an average of 21°C (71°F). Furthermore, July reaches a maximum of 36°C (97°F), significantly hotter than May's peak of 28°C (82°F). Precipitation is also less frequent in July, with only 3 mm (0.1 in) of rain and no rainy days, compared to May's 10 mm (0.4 in) over two days. Additionally, July's humidity remains relatively high at 73%, only slightly above May's 70%. For more specific information, you can check the detailed Signal Hill weather in July.
May and August present distinct weather patterns, with May typically offering milder temperatures and more humidity. In May, temperatures range from a minimum of 11°C (53°F) to a maximum of 28°C (82°F), with an average of 17°C (63°F), alongside some light precipitation over two days. The humidity level hovers around 70%, adding a noticeable dampness to the air.
In contrast, August boasts warmer conditions, with minimum temperatures of 16°C (61°F), averages rising to 22°C (72°F), and maximums reaching up to 31°C (89°F). Uniquely, August experiences virtually no precipitation, recorded at just 1 mm (0.1 in) over the entire month, along with a slightly lower humidity level of 69%. For more detailed insights, you can check out the Signal Hill weather in August. Overall, while May can feel fresh and sometimes humid, August delivers warm and dry weather, making it an ideal time for outdoor activities.
May and September exhibit contrasting weather patterns, showcasing the transition from spring to early autumn. In May, temperatures range from a cooler minimum of 11°C (53°F) to a pleasant average of 17°C (63°F), peaking at a maximum of 28°C (82°F). The month also sees some rain, with 10 mm of precipitation over two days and a humidity level of 70%. In contrast, September experiences warmer conditions, with a minimum temperature of 15°C (60°F) and an average of 22°C (71°F), reaching highs of 36°C (97°F). This month is notably drier, with only 3 mm of precipitation and no rainy days, accompanied by slightly lower humidity at 68%. For more information about September weather, you can check Signal Hill weather in September.
May and October both offer mild weather, but their characteristics vary notably. In May, temperatures range from a minimum of 11°C (53°F) to a maximum of 28°C (82°F), with an average of 17°C (63°F). The month experiences light precipitation totaling 10 mm (0.4 in) over about 2 days, accompanied by a humidity level of 70%. In contrast, October boasts slightly warmer conditions, with minimum temperatures of 12°C (54°F) and maximum readings reaching up to 37°C (98°F), resulting in an average of 20°C (69°F). Precipitation in October is marginally less at 8 mm (0.3 in), also falling over 2 days, with a slightly lower humidity of 67%. For more detailed insights into the weather during October, check out Signal Hill weather in October.
In May, temperatures range from a pleasant minimum of 11°C (53°F) to a comfortable maximum of 28°C (82°F), with an average of 17°C (63°F) and only about 10 mm (0.4 in) of precipitation over two days. The humidity is relatively high at 70%. In contrast, November offers a slightly cooler minimum temperature of 9°C (48°F) but can peak at a higher maximum of 31°C (88°F), maintaining the same average of 17°C (63°F). However, it receives more rain, with a total of 17 mm (0.7 in) over two days, contributing to a humidity level of 68%. For a deeper dive into November's climate specifics, you can check Signal Hill weather in November.
May typically experiences warmer temperatures with an average of 17°C (63°F) and a maximum of 28°C (82°F), offering a pleasant atmosphere with only 10 mm (0.4 in) of precipitation over just 2 days. In contrast, December is cooler, featuring an average temperature of 14°C (58°F) and a maximum of 26°C (79°F), but it has significantly higher rainfall, totaling 70 mm (2.8 in) over 4 days, resulting in a similar humidity level of 71%. For more detailed information about December weather conditions, you can refer to Signal Hill weather in December.
As May ushers in the warmth of spring in Signal Hill, the weather showcases a delightful blend of sunshine and mild temperatures, marking a welcome transition from the cooler months. With a pleasing average of 17°C (63°F), residents can enjoy outdoor activities under a predominantly sunny sky, punctuated by occasional light rain. The increase in humidity, hovering around 70%, adds a touch of refreshing feel, contrasting sharply with the drier conditions of winter. Be sure to explore how the unique climate of Signal Hill evolves throughout the year by visiting Signal Hill Climate.