Last updated: February 24, 2025
In Mesa, Arizona, the weather in May showcases a striking contrast, with maximum temperatures soaring to 42°C (108°F) while the average hovers around a comfortable 27°C (81°F). The month experiences little to no precipitation, recording only 2 mm (0.1 in) and 0 days of rain, contributing to a dry atmosphere. With humidity levels at 40%, the climate remains warm and inviting for outdoor activities. This blend of heat and minimal moisture marks May as a quintessential desert month, ideal for those who thrive in sunny, arid conditions.
In Mesa, Arizona, May ushers in a noticeable warm-up as spring transitions into the sizzling summer months. The temperatures during this month showcase a minimum of 12°C (54°F) and an average of 27°C (81°F), climbing to a peak of 42°C (108°F). This rising trend is evident compared to the cooler temperatures from earlier in the year, with May's warm averages positioning it as a precursor to the hotter months ahead. As the sun shines brightly and the days grow longer, residents and visitors alike can enjoy outdoor activities, albeit with a nod to staying hydrated amidst the intensifying heat. May not only offers a gradual approach to the summer heat but also presents a delightful opportunity to savor the vibrant landscapes of Mesa before the peak scorching days arrive.
In Mesa, United States, May's precipitation is notably minimal, with just 2 mm (0.1 in) recorded and no rainy days to speak of. This pattern aligns with the trend observed in April, which also saw no precipitation, highlighting a dry stretch that extends into early summer. Comparatively, Spring months like March still offered some moisture with 31 mm (1.2 in), but as temperatures rise, the frequency of rain drastically declines. The data paints a picture of a region where dry conditions become increasingly prevalent, setting the stage for the hotter months ahead—where the subsequent rainfall in July jumps to 38 mm (1.5 in) across six rainy days, showcasing the seasonal shift that characterizes Mesa's climate.
As spring fades into summer, May in Mesa, United States showcases a remarkable shift in humidity levels. With an average humidity of 40%, this month marks a significant drop from the wetter conditions experienced earlier in the year, particularly January's 76% and February's 79%. This transition not only signifies the onset of warmer days but also highlights the dry desert climate that characterizes Mesa's summer months. The continued decline into June with 33% humidity suggests that residents can expect a comfortable environment for outdoor activities, yet it serves as a reminder of the stark contrast to the more humid months of the year, like December at a steamy 82%.
As May rolls into Mesa, the UV Index reaches an intense 11, categorizing it as extreme and significantly raising the risk of harm from unprotected sun exposure. With a burn time of just 10 minutes, this month's UV levels represent a marked increase from April's 10, a trend that highlights the growing intensity of the sun as summer approaches. Both March and April saw very high levels, but May's extreme rating serves as a crucial reminder to prioritize sun safety. Whether you're lounging at the park or running errands, it's essential to wear protective clothing and apply sunscreen frequently. For more details on UV trends and safety tips, check out Mesa UV Index.
UV Risk Categories
In Mesa, United States, May shines as a peak of abundant sunlight, boasting an impressive 373 hours of bright, glorious days. This month marks a significant increase compared to the earlier months of the year, with a steady rise from 193 hours in January to 332 hours in April. As spring transitions into summer, May not only continues this upward trend but also sets the stage for June, which nearly matches it at 374 hours. This sunny crescendo not only elevates outdoor activities but also captures the essence of the region's vibrant atmosphere, making it a delightful time for residents and visitors alike to enjoy the warmth and beauty of Mesa.
In Mesa, the likelihood of sunny weather takes a significant leap in May, reaching an impressive 90% chance of sunshine. This marks a noticeable upward trend from the previous months, with April's 76% serving as a strong precursor to the vibrant weather that May promises. As the year progresses, the chances of clear skies increase, showcasing a clear pattern that highlights May as one of the sunniest months. Following May, however, the likelihood dips in the summer months of June and July, where it drops to 71% and a stark 36%, respectively. Thus, May stands out as a delightful spring month perfect for outdoor activities under mostly sunshine-filled skies.
In Mesa, United States, the daylight duration begins a gradual ascent from 10 hours in January and February, before hitting 11 hours in March as the spring approaches. By April and May, daylight lingers pleasantly at 13 hours, setting the stage for longer, sunnier days ahead. As summer takes hold, June and July bask in a peak of 14 hours of daylight, creating ample opportunities for outdoor activities and exploration. As the seasons shift again, daylight starts to recede, with August witnessing a slight dip back to 13 hours, followed by a steady decline through September's 12 hours, and back to 10 hours by November, finally tapering off to just 9 hours in December. This cyclical trend reveals how Mesa's summer months are marked by extended daylight, while winter brings shorter days, inviting a rhythm that residents have come to cherish.
In Mesa, United States, the month of May presents a delightful transition in wind patterns as average wind speeds settle at 2.6 m/s (6 mph). This marks a slight dip from the increasing trend observed in April, which saw winds pick up to 2.7 m/s (6 mph). Interestingly, May’s wind conditions are relatively consistent with the preceding months, showcasing a gentle breeziness that complements the warming temperatures. As summer approaches, wind speeds typically hover around 2.7 m/s (6 mph) in June, suggesting that May acts as a bridge to the slightly breezier summer months. Overall, May captures the essence of spring in Mesa, with mild winds that enhance outdoor activities while hinting at the calm yet warm waves of summer ahead.
The weather in Mesa 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 Mesa and find detailed weather information for every month.
May and January present contrasting weather patterns. In May, temperatures soar with a minimum of 12°C (54°F) and an impressive average high of 27°C (81°F), reaching up to a sweltering maximum of 42°C (108°F). The month experiences minimal precipitation, with just 2 mm (0.1 in) over no rainy days and a relatively low humidity of 40%. In stark contrast, January boasts much cooler temperatures, starting from a minimum of -2°C (29°F) and averaging around 12°C (53°F), with a maximum reaching 28°C (82°F). This month typically sees 33 mm (1.3 in) of precipitation spread over four days, accompanied by high humidity levels at 76%. For more detailed insights, you can explore Mesa weather in January.
May and February present a stark contrast in weather. In May, temperatures soar with a minimum of 12°C (54°F) and a striking maximum of 42°C (108°F), showcasing a warm average of 27°C (81°F). The month is notably dry, with only 2 mm of precipitation and a low humidity level of 40%. In contrast, February is much cooler, experiencing temperatures that range from a min of 0°C (33°F) to a max of 28°C (83°F), with an average of 13°C (56°F). This month is wetter, accumulating 44 mm of precipitation over four days, and features higher humidity at 79%. For more detailed information on February's weather, you can visit Mesa weather in February.
The weather in May is significantly warmer and drier compared to March. In May, temperatures range from a minimum of 12°C (54°F) to a scorching maximum of 42°C (108°F), with an average of 27°C (81°F) and almost no precipitation, averaging just 2 mm over the entire month. In contrast, March experiences cooler temperatures, with a minimum of 3°C (38°F) and a maximum of 34°C (94°F), averaging 17°C (63°F) and seeing about 31 mm of precipitation over three days, resulting in a more humid atmosphere with a humidity level of 67%. For a more detailed overview of March weather, you can visit Mesa weather in March.
May weather showcases a significant increase in temperature compared to April, with average highs reaching 27°C (81°F) and peaking at 42°C (108°F), while April's averages are more moderate at 23°C (74°F) with a maximum of 39°C (102°F). Despite both months receiving minimal precipitation of 2 mm (0.1 in) and experiencing dry conditions, May is notably warmer and less humid, with humidity levels around 40%, compared to April's higher humidity of 55%. For a more detailed look at April's climate, you can refer to Mesa weather in April.
In comparing the weather of May and June, June tends to be significantly warmer, with average temperatures rising from 27°C (81°F) in May to 33°C (92°F) in June. The maximum temperatures also increase, peaking at 47°C (117°F) in June compared to May's 42°C (108°F). Interestingly, both months receive the same minimal precipitation of 2 mm (0.1 in) and experience no rainy days, but June has slightly lower humidity at 33%, compared to May's 40%. For a closer look at the specific weather patterns in June, you can check out this resource: Mesa weather in June.
May typically offers a more moderate climate with temperatures ranging from a minimum of 12°C (54°F) to a maximum of 42°C (108°F) and an average of 27°C (81°F). This month also enjoys very low precipitation, with no rain days and humidity around 40%. In contrast, July experiences markedly warmer conditions, showcasing minimum temperatures of 23°C (73°F) and maximums reaching up to 47°C (116°F), with an average of 34°C (94°F). July also sees increased precipitation with 38 mm (1.5 in) over six days, and humidity drops slightly to 34%. For more details on the July weather, you can explore Mesa weather in July.
In May, the weather features a more moderate temperature range, with a minimum of 12°C (54°F) and an average of 27°C (81°F), while experiencing little to no precipitation at just 2 mm (0.1 in) and 0 rainy days. The humidity is relatively low at 40%, making for comfortable outdoor conditions. In contrast, August sees significantly warmer temperatures, with a minimum of 22°C (71°F) and an average soaring to 34°C (93°F), alongside a higher maximum of 46°C (115°F). The humidity also rises to 48%, and precipitation increases to 33 mm (1.3 in) over 4 days, contributing to a more sultry feel. For more details on the weather during this month, visit Mesa weather in August.
May and September both experience warm temperatures, but there are notable differences in their weather patterns. In May, temperatures range from a minimum of 12°C (54°F) to a maximum of 42°C (108°F), with an average of 27°C (81°F) and very little precipitation—only 2 mm (0.1 in) and no rain days, keeping humidity at a comfortable 40%. In contrast, September sees higher average temperatures at 31°C (88°F), with maximums reaching 44°C (112°F). This month also brings more humidity at 64% and a total precipitation of 28 mm (1.1 in) over three days, signaling a more humid and occasionally rainy end to the summer. For more details on September weather, check Mesa weather in September.
In May, the weather is characterized by warm to hot temperatures, with an average of 27°C (81°F) and maximums reaching 42°C (108°F), while experiencing very little precipitation and low humidity at 40%. In contrast, October sees cooler temperatures, with an average of 24°C (75°F) and minimums of 6°C (43°F). Additionally, October brings more moisture, with 25 mm (1.0 in) of rain over about two days and increased humidity at 67%. For more detailed insights, you can check Mesa weather in October.
May weather is characterized by warm temperatures, with a minimum of 12°C (54°F) and an average of around 27°C (81°F), reaching highs of up to 42°C (108°F). It boasts very little precipitation, with only 2 mm (0.1 in) recorded over the month and no rainy days, alongside a relatively low humidity level of 40%. In contrast, November experiences cooler temperatures, with a minimum of 5°C (41°F), an average of 18°C (65°F), and a maximum of 36°C (96°F). This month also brings slightly more precipitation, at 23 mm (0.9 in) over one rainy day, and a significant increase in humidity to 77%. For a deeper look into November's conditions, you can visit Mesa weather in November.
May and December present starkly contrasting weather patterns. In May, temperatures soar, with a minimum of 12°C (54°F) and a sweltering maximum reaching up to 42°C (108°F), while the average sits at a warm 27°C (81°F). Precipitation is negligible, totaling just 2 mm (0.1 in) over 0 days, and the humidity is a relatively low 40%. In contrast, December brings much cooler temperatures, with a minimum plummeting to -1°C (31°F) and a maximum of 28°C (82°F), averaging 12°C (54°F). The month is also wetter, yielding 27 mm (1.0 in) of precipitation over 4 days, accompanied by higher humidity levels of 82%. For more detailed information about December weather, visit Mesa weather in December.
May in Mesa brings warm, dry conditions that stand out compared to other months. With a strikingly high average temperature and minimal precipitation, this month ushers in the heat of summer while maintaining a comfortable level of humidity. Unlike the cooler, wetter months of spring, May offers clear skies and ample sunshine, perfect for outdoor activities. This transition not only marks the approach of the hotter season, but also provides a beautiful backdrop for enjoying the picturesque landscape of the area. For more insights into the weather patterns throughout the year, check out Mesa Climate.