Last updated: February 24, 2025
In Bethlehem, United States, May ushers in a notable shift in climate, characterized by a maximum temperature reaching an invigorating 31°C (87°F) while dipping to an average of 12°C (53°F). The colder nights can bring temperatures as low as -3°C (27°F), creating a contrasting spring atmosphere. This month sees 104 mm (4.1 in) of precipitation over approximately 13 days, fostering a humid environment with 78% humidity that contributes to the region's lush greenery. Whether you're enjoying sunny afternoons or refreshing rain showers, May in Bethlehem offers a vibrant blend of springtime weather.
As spring unfolds in Bethlehem, United States, May welcomes a refreshing shift in temperatures that signals the transition into warmer months. With a minimum temperature of -3°C (27°F) and a maximum reaching 31°C (87°F), May showcases a remarkable rise from the lingering chills of winter. The average temperature of 12°C (53°F) invites outdoor activities, making it a vibrant time for residents to enjoy the blossoming landscape. Compared to the frigid depths of January and February, when temperatures plummeted to -31°C (-23°F) and -27°C (-16°F) respectively, the warmth of May offers a persuasive glimpse of the coming summer, creating an engaging contrast that enhances the region's charm and livability. This month not only marks an increase in temperature but also an uplifting shift in the community's spirit as everyone welcomes the joys of the season ahead.
In May, Bethlehem experiences a moderate precipitation level, with 104 mm (4.1 in) of rain spread over 13 days. Following an exceptionally wet April, which recorded the highest rainfall of the year at 125 mm (4.9 in), May continues the trend of spring showers that nourish the blooming landscapes. This month’s rainfall is less intense than April's but still significant, indicating a gradual transition towards the drier summer months ahead. As temperatures rise, the May precipitation serves as a crucial water source, supporting the growth of lush greenery before the summer heat takes hold. Overall, May acts as a bridge between the abundant rains of early spring and the warmer, drier months to come.
As spring transitions into summer, May in Bethlehem, United States brings a noticeable drop in humidity, with levels at 78%—a refreshing shift from the higher moisture levels experienced in the winter months. Following a gradual decline from 91% in January to 84% in April, this decrease signals the onset of warmer weather and a more comfortable atmosphere. Interestingly, as the summer progresses, humidity begins to fluctuate, peaking again in July at 75% before tapering off in August. This pattern suggests that while May offers a brief respite from the muggy conditions of earlier months, humidity remains a defining characteristic of the region's climate throughout the year.
As spring transitions into summer, May in Bethlehem sees a significant increase in UV exposure, with a UV Index of 9, classifying it as very high. This level of intensity means that the risk of harm from unprotected sun exposure is elevated, with a quick burn time of just 15 minutes. Following the upward trend from earlier months, where the UV Index rose from moderate levels in February to high in April, May signals the onset of more intense sunlight that will persist into June and July. As outdoor activities increase, it's crucial to take protective measures against the sun’s rays. For more detailed information on UV levels and safety tips, visit Bethlehem UV Index.
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May brings a delightful surge of sunshine to Bethlehem, with a notable 250 hours of sunlight illuminating the landscape. This vibrant increase follows the gradual climb from January’s mere 111 hours and marks a peak of brightness before the summer months. As spring matures into summer, July and August outshine May, boasting impressive tallies of 318 and 322 hours, respectively. However, May stands out as a turning point, heralding a lush transformation where nature thrives under longer days, creating the perfect backdrop for outdoor activities and blossoming gardens. The steady rise from the previous months and the imminent summer glow suggest that Bethlehem's residents eagerly embrace this radiant season, relishing each sunny day.
In Bethlehem, the likelihood of sunny weather in May stands at 32%, which is slightly above the monthly average observed earlier in the year. The trend in sunny days begins to climb from the winter months, with a notable peak in March at 46%, before tapering off in April and maintaining a relatively steady rate in May. As summer approaches, the chances of sunshine increase again, particularly in June and September. This pattern suggests that while May might not boast the highest likelihood for sun, it serves as a critical transition month that hints at the sunnier days ahead.
As spring blossoms into summer, daylight duration in Bethlehem, United States, showcases a remarkable upward trend. Starting from a mere 9 hours in January and gradually increasing, May enjoys a bright 14 hours of daylight—a clear indicator of the season's shift. The transition from 10 hours in February to 11 hours in March underscores the gradual lengthening, while April brings a substantial leap to 13 hours. This gradual extension reaches its peak in June and July with 15 hours, creating a vibrant atmosphere for outdoor activities. As summer wanes, daylight begins to retreat, moving from 13 hours in August to 12 in September, and eventually tapering back down to 9 hours by November. The cycle of light in Bethlehem vividly reflects the rhythm of the changing seasons, inviting residents to revel in the longer days of May.
In May, the winds in Bethlehem exhibit a gentle yet steady pace, with an average speed of 2.4 m/s (5 mph). This slight dip from April’s 2.8 m/s (6 mph) aligns with a springtime transition, where mild breezes offer a refreshing counterpoint to the warmth of approaching summer. Notably, the wind speeds during these spring months remain relatively consistent, hovering around the 5 mph mark, while the summer months begin to show a gradual decline, particularly in July and August. As May bids farewell to spring, it sets the stage for the lighter whispers of winds in the hotter months ahead, inviting residents and visitors alike to enjoy the serene atmosphere this charming season brings.
The weather in Bethlehem 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 Bethlehem and find detailed weather information for every month.
May and January in Bethlehem present a striking contrast in weather conditions. In May, temperatures range from a chilly low of -3°C (27°F) to a warm high of 31°C (87°F), with an average temperature of 12°C (53°F). The month is relatively humid, with an average humidity of 78% and 104 mm (4.1 in) of precipitation over 13 days. In stark opposition, January experiences much colder temperatures, with minimums plunging to -31°C (-23°F) and an average of -8°C (17°F). Although the maximum temperature reaches a milder 12°C (54°F), January’s humidity is quite high at 91%, and it sees about 86 mm (3.4 in) of precipitation over 12 days. For a deeper insight into January's climate, you can explore Bethlehem weather in January.
When comparing the weather in May and February, there is a stark contrast in temperatures and overall conditions. In May, temperatures range from a chilly minimum of -3°C (27°F) to a warm maximum of 31°C (87°F), with an average of 12°C (53°F). In contrast, February experiences much colder temperatures, with a minimum of -27°C (-16°F) and an average of -7°C (20°F), peaking at just 16°C (62°F). Both months see approximately 13 days of precipitation, but February tends to be drier with 85 mm (3.4 in) compared to May’s 104 mm (4.1 in). Humidity levels are similar, with February at 89% and May at 78%. For a more detailed look at February weather in Bethlehem, you can visit this link: Bethlehem weather in February.
When comparing the weather in May and March, it’s clear that May is much milder and more pleasant. In March, temperatures can drop as low as -22°C (-8°F), with an average of -3°C (27°F), while in May, temperatures range from a brisk minimum of -3°C (27°F) to a maximum of a warm 31°C (87°F). Additionally, March experiences more extreme cold and higher humidity at 85%, whereas May has a lower humidity of 78% and significantly more precipitation at 104 mm (4.1 in) over 13 days, compared to March's 77 mm (3.0 in) over 11 days. For a detailed comparison, you can check Bethlehem weather in March.
May generally offers milder temperatures and greater warmth compared to April, with an average temperature rise from 4°C (40°F) in April to 12°C (53°F) in May. The maximum temperature in May can reach up to 31°C (87°F), while April sees a maximum of only 24°C (76°F). However, May experiences slightly less precipitation overall, with 104 mm (4.1 in) over 13 days, compared to April's 125 mm (4.9 in) on 16 days. Additionally, humidity levels in May average 78%, a bit lower than April’s 84%. For a more detailed look at April weather, you can visit Bethlehem weather in April.
In May, temperatures range from a chilly -3°C (27°F) at night to a warm 31°C (87°F) during the day, with an average of 12°C (53°F). The month sees around 104 mm (4.1 in) of precipitation, spread over 13 days, and a relatively high humidity level of 78%. In contrast, June experiences slightly milder nights with temperatures dipping to -1°C (31°F) and a higher daytime average of 17°C (62°F), while still reaching a maximum of 31°C (88°F). Precipitation in June is similar at 109 mm (4.3 in) but occurs over just 12 days, and humidity decreases to 72%. For more insights on June weather, you can check out Bethlehem weather in June.
In May, temperatures in Bethlehem range from a chilly minimum of -3°C (27°F) to a warm maximum of 31°C (87°F), with an average of 12°C (53°F). The month experiences about 104 mm (4.1 in) of precipitation over 13 days, coupled with a relatively high humidity level of 78%. In contrast, July sees a notable increase in warmth, with minimum temperatures around 7°C (44°F) and maximums reaching up to 33°C (91°F), resulting in a comfortable average of 19°C (67°F). Although July has slightly more precipitation at 119 mm (4.7 in) over 14 days, the humidity remains lower at 75%. For more detailed insights, check out Bethlehem weather in July.
May and August present distinct weather patterns. In May, temperatures range from a chilly minimum of -3°C (27°F) to a warm maximum of 31°C (87°F), with an average of 12°C (53°F). The month also sees considerable precipitation, totaling 104 mm (4.1 in) over 13 days, combined with relatively high humidity at 78%. In contrast, August starts with a slightly higher minimum temperature of 4°C (40°F) and an average temperature of 18°C (66°F), peaking at 32°C (89°F). The precipitation in August is a bit less at 91 mm (3.6 in) over the same number of days, and humidity is slightly lower at 74%. For more details on August weather specifically, you can visit Bethlehem weather in August.
May and September present a fascinating contrast in weather patterns. In May, temperatures range significantly from a chilly minimum of -3°C (27°F) to a warm maximum of 31°C (87°F), with an average temperature of 12°C (53°F). This month also experiences more precipitation, with 104 mm (4.1 in) of rain spread over 13 days and a relatively high humidity level of 78%. In contrast, September brings slightly cooler temperatures, with minimums dropping to -5°C (23°F) and maximums reaching 29°C (85°F), but an average of 15°C (58°F) makes it feel more comfortable overall. The month sees less rainfall, totaling 69 mm (2.7 in) over just 9 days, while humidity levels remain similar at 77%. For a more detailed look at September's weather, you can check Bethlehem weather in September.
May and October exhibit distinct weather characteristics, highlighting the transition from spring to autumn. In May, temperatures range from a chilly -3°C (27°F) at night to a warm 31°C (87°F) during the day, with an average of 12°C (53°F). Humidity sits at 78%, and precipitation measures around 104 mm (4.1 in) over 13 days. In contrast, October sees cooler temperatures, with a minimum of -7°C (20°F) and a maximum of 24°C (76°F), averaging 8°C (47°F). The month is slightly wetter, with 140 mm (5.5 in) of precipitation over 14 days and higher humidity at 85%. For more details on October weather, you can visit Bethlehem weather in October.
May and November present a stark contrast in weather conditions. In May, temperatures range from a chilly -3°C (27°F) at night to a warm 31°C (87°F) during the day, with an average of 12°C (53°F). The month experiences about 104 mm (4.1 in) of precipitation across approximately 13 days, with humidity levels sitting at 78%. In contrast, November sees much colder temperatures, with nighttime lows plunging to -21°C (-5°F) and daytime highs reaching a milder 21°C (71°F), averaging around 0°C (32°F). Precipitation increases slightly to 116 mm (4.6 in) over about 15 days, accompanied by higher humidity of 86%. This shift highlights the transition from the warmth of spring to the chill of late autumn. For more detailed information, check out Bethlehem weather in November.
May and December present quite distinct weather patterns, reflecting the shift from spring to winter. In May, temperatures range from a chilly -3°C (27°F) at night to a warm 31°C (87°F) during the day, averaging around 12°C (53°F). The month sees about 104 mm (4.1 in) of precipitation over 13 days, with humidity levels at 78%. In contrast, December is significantly colder, with temperatures ranging from a frigid -30°C (-21°F) to a high of 13°C (56°F), averaging -6°C (22°F). The precipitation is slightly lower at 100 mm (3.9 in) but occurs over more days, totaling 15, with humidity even higher at 85%. For more insights into December's climate, check out this link: Bethlehem weather in December.
As May unfolds in Bethlehem, it brings a refreshing shift from the lingering cold of early spring to more moderate temperatures. With the average temperature rising significantly, residents can finally enjoy the outdoors as the chill of winter fades into memory. However, this month also sees an uptick in precipitation, with rain gracing the area on about half the days, making it crucial for outdoor plans to account for those occasional showers. The humidity levels remain elevated, creating a slightly muggy atmosphere, which is a stark contrast to the crispness of earlier months. Overall, May serves as a transitional period, blending the tail end of chilly nights with the burgeoning warmth of summer ahead. For a deeper dive into the annual climate trends, check out Bethlehem Climate.