Last updated: February 24, 2025
In May, Grant Park experiences a diverse climate marked by a maximum temperature reaching 34°C (94°F), while the average settles around 17°C (62°F). The month can be quite chilly, with minimum temperatures dipping to -2°C (29°F). Precipitation is notable, with a total of 161 mm (6.3 in) spread over 15 days, resulting in a relatively humid atmosphere with levels hovering around 79%. This dynamic weather pattern makes May a month of contrasts, offering both warm, sunny days and cooler, wetter spells.
As spring transitions into summer, Grant Park's temperatures in May showcase a significant warming trend. With minimums around -2°C (29°F) and averages climbing to 17°C (62°F), May marks a departure from the cold grip of winter. The maximum temperatures, peaking at an impressive 34°C (94°F), invite outdoor activities and gatherings, contrasting sharply with the preceding months where the highs struggled to breach the 30°C mark. This month serves as a delightful precursor to the summer heat, as nature bursts with life and color, enticing locals and visitors alike to enjoy the vibrant parks and scenery.
In May, Grant Park experiences a notable uptick in precipitation, with an impressive 161 mm (6.3 in) recorded over 15 days. This increase marks the wettest month of the year, showcasing a significant shift from the preceding months. After a gradual rise in rainfall from January to April, May's downpour signals the transition into the lushness of summer. The pattern of intensifying showers is indicative of the changing seasons, contributing to vibrant greenery and blooming flora throughout the park. As temperatures climb, the combination of frequent rain and warmer weather creates a lively ecosystem, enhancing the natural beauty that visitors have come to cherish.
In Grant Park, the humidity levels experience a subtle ebb and flow throughout the year, with a notable decrease in May. After steadily rising from 82% in January to 85% in April, the humidity dips to 79% in May, signaling a brief respite before the summer months. This trend of declining humidity may provide a refreshing contrast to the otherwise muggy conditions typical of early summer, as levels ramp back up to 82% in June. As the year progresses, humidity peaks again in late autumn, reaching 88% in November, hinting at a cyclical rhythm of atmospheric moisture that defines the region's climate.
In May, Grant Park experiences a significant rise in UV intensity, with an index of 10 marking it as a time of very high exposure. This is a trend that starts in April's UV index of 9 and continues into June, where the index remains steady at 10. With a burn time of just 15 minutes, it's crucial for outdoor enthusiasts to be vigilant about sun protection during this month. As temperatures warm and daylight hours increase, the sun's strength calls for serious attention to skin safety—especially as this very high category remains consistent through the summer months. For more detailed information, visit Grant Park UV Index.
UV Risk Categories
As spring blossoms into summer, May shines particularly brightly in Grant Park, boasting a delightful 284 hours of sunshine. This increase marks a continuation of the upward trend initiated in January, where the sun graced the park with just 116 hours. Each month leading up to May has shown a steady rise, with the hours of sunlight nearly doubling since the start of the year. Following May, June enjoys even more sun, reaching 329 hours, and July peaks at 353 hours, showcasing the region's vibrant transition into the heart of summer. This pattern not only emphasizes the growing warmth but also invites residents and visitors alike to revel in the park's natural beauty and outdoor activities, making May a particularly enchanting month in Grant Park.
In Grant Park, United States, the likelihood of sunny weather sees a slight fluctuation throughout the year. Starting from a modest 25% in January, the probability of clear skies steadily rises, peaking at 59% in September. By May, the chance of sunshine sits at 33%, which is a dip compared to the preceding months of March and April, but still reflective of the changing seasons. As the year progresses into the summer, the outlook brightens, with June and July showing promising chances of sun at 42% and 43% respectively. This trend highlights warmer months as generally more favorable for sunny weather, making summer the prime time to soak up the sun in Grant Park.
As spring blossoms into summer, Grant Park, United States, experiences a remarkable increase in daylight duration. Starting from a modest 9 hours in January, the days gradually lengthen, reaching 14 hours by May. This trend continues into June, where daylight peaks at an impressive 15 hours, allowing ample opportunity for outdoor activities and enjoying the vibrant park scenery. Following this summer solstice, daylight begins to taper off, transitioning back through 14 hours in July to 12 hours in September. Ultimately, the rhythm of the seasons brings us back to shorter days, with 9 hours returning by November and December. This natural ebb and flow reflects the dynamic cycle of light that graces Grant Park year-round, enriching both community life and the natural beauty of the area.
In Grant Park, May ushers in a gentle breeze, with an average wind speed of 3.6 m/s (8 mph), slightly lower than the preceding months. This reduction marks a transition from the brisker winds of spring, which peak in March at 4.6 m/s (10 mph). As we move into the warmer months, there's a noticeable decline in wind speed, especially during the summer, where July experiences its calmest days at 3.0 m/s (7 mph). However, May still provides a delightful balance, encouraging outdoor activities while hinting at the serene, quieter days of summer ahead. Interestingly, as fall approaches, wind speeds tend to pick up again, suggesting a dynamic climate rhythm in Grant Park that keeps nature lively throughout the year.
The weather in Grant Park 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 Grant Park and find detailed weather information for every month.
May and January present contrasting weather patterns, reflecting the transition from winter to spring. In May, temperatures can range from a chilly -2°C (29°F) at night to a warm 34°C (94°F) during the day, with an average temperature of 17°C (62°F). This month also sees significant precipitation, with 161 mm (6.3 in) falling over 15 days, and a humidity level of 79%.
In stark contrast, January experiences much harsher conditions, with minimum temperatures plummeting to -30°C (-22°F) and daytime highs peaking at only 17°C (63°F), averaging around -3°C (27°F). Precipitation is lower in January at 69 mm (2.7 in) over just 8 days, but humidity remains high at 82%. For more detailed information on January weather, you can visit Grant Park weather in January.
May and February present stark contrasts in weather conditions. In May, temperatures can range dramatically, from a chill of -2°C (29°F) to a warm peak of 34°C (94°F), with an average temperature of 17°C (62°F). This month also sees significant rainfall, totaling 161 mm (6.3 in) over about 15 days, resulting in a humidity level of 79%. In contrast, February is much colder, with temperatures ranging from a frigid -31°C (-24°F) to a mild 21°C (70°F), averaging around -2°C (29°F). Precipitation is lower in February, at 71 mm (2.8 in) over 10 days, and humidity is slightly higher at 83%. For more detailed insights, you can check Grant Park weather in February.
Comparing the weather in May and March reveals a significant shift in temperatures and conditions. May offers a much warmer average temperature of 17°C (62°F), with highs soaring to 34°C (94°F), while March's average lags behind at just 5°C (41°F), peaking at 26°C (80°F). Precipitation levels in May are higher, with 161 mm (6.3 in) spread over 15 days compared to March's 95 mm (3.7 in) over 12 days. Additionally, March tends to be distinctly colder, with a minimum temperature of -18°C (-1°F), whereas May's minimum hovers above freezing at -2°C (29°F). Humidity levels are relatively similar, with March at 84% and May at 79%. For a more detailed look at March weather specifics, you can check Grant Park weather in March.
In comparing the weather of May and April, we notice a distinct warming trend as spring progresses. May boasts a significant increase in average temperatures, with values ranging from a minimum of -2°C to a maximum of 34°C, compared to April's range of -7°C to 29°C. Additionally, May experiences higher precipitation levels at 161 mm over 15 days, while April has 120 mm over 13 days. The humidity remains relatively consistent, albeit slightly lower in May at 79% compared to April's 85%. For more details on weather conditions specifically in April, you can explore Grant Park weather in April.
May and June present a noticeable shift in weather patterns. May begins with cooler temperatures, ranging from a minimum of -2°C (29°F) to a maximum of 34°C (94°F), with an average of 17°C (62°F). The month experiences substantial precipitation, totaling 161 mm (6.3 in) over 15 days, accompanied by a humidity level of 79%. In contrast, June warms up significantly, with temperatures starting at a minimum of 10°C (51°F), an average of 23°C (73°F), and peaking at 35°C (95°F). This month sees a decrease in precipitation to 124 mm (4.9 in) over 13 days, while humidity rises slightly to 82%. For a closer look at what to expect, check out Grant Park weather in June.
May and July exhibit notable differences in weather patterns. May sees a wider temperature range, with a minimum of -2°C (29°F) and average highs peaking at 34°C (94°F), while July maintains a milder temperature spectrum, starting at 13°C (56°F) and averaging 24°C (76°F). Precipitation is also more pronounced in May, totaling 161 mm (6.3 in) over 15 rainy days compared to July's 98 mm (3.9 in) across 12 days. Humidity remains relatively stable, hovering around 79% in May and slightly increasing to 80% in July. For more specific weather insights, such as those experienced in Grant Park, check out the following link: Grant Park weather in July.
May and August present notable differences in weather patterns. In May, temperatures can fluctuate between a chilly minimum of -2°C (29°F) and a scorching maximum of 34°C (94°F), with an average of 17°C (62°F). The month sees considerable precipitation at 161 mm (6.3 in) over 15 days, contributing to a relatively high humidity level of 79%. In contrast, August has a more stable temperature range, with minimums around 11°C (52°F) and maximums peaking at 35°C (95°F), leading to an average temperature of 23°C (74°F). Additionally, August experiences less rainfall, totaling 92 mm (3.6 in) over 11 days, and shows a slight increase in humidity at 81%. For more detailed weather insights, check out this link: Grant Park weather in August.
In May, temperatures can range significantly, with a minimum of -2°C (29°F) and a high of 34°C (94°F), leading to an average of 17°C (62°F). The month is characterized by frequent rainfall, totaling 161 mm (6.3 in) over 15 days, along with a humidity level of 79%. In contrast, September shows a milder climate with a minimum temperature of 5°C (41°F), an average of 20°C (69°F), and a similar maximum of 34°C (94°F). However, September experiences much less precipitation—only 77 mm (3.0 in) over 8 days—and a slightly higher humidity of 80%. For a deeper insight into the weather patterns of September, you can check out Grant Park weather in September.
May and October present distinct weather profiles, marked by variations in temperature and precipitation. In May, the average temperature reaches a comfortable 17°C (62°F), with a maximum of 34°C (94°F), whereas October sees a cooler average of 13°C (56°F) and a max of 31°C (89°F). Both months experience significant rainfall, with May receiving 161 mm (6.3 in) across 15 days, compared to October's 135 mm (5.3 in) over 13 days. Humidity levels are relatively similar, with May at 79% and October slightly higher at 82%. For a detailed outlook, you can check Grant Park weather in October.
May and November present quite different weather patterns. May features a warmer temperature range, with average highs around 17°C (62°F) and peaks reaching up to 34°C (94°F), while November's average temperature is significantly lower at 4°C (40°F), with maximums capping at 25°C (78°F). Precipitation is more frequent in May, occurring on 15 days with a total of 161 mm (6.3 in), compared to November, which sees only 64 mm (2.5 in) over 8 days. Humidity levels in November are slightly higher at 88%, compared to May’s 79%, making the latter feel relatively more comfortable. For a closer look at the specific conditions during this month, check out the Grant Park weather in November.
May and December present starkly contrasting weather conditions. In May, temperatures typically range from a minimum of -2°C (29°F) to a warm maximum of 34°C (94°F), with an average temperature around 17°C (62°F). The month experiences a significant amount of precipitation, totaling 161 mm (6.3 in) over approximately 15 days, while humidity remains relatively high at 79%. In contrast, December brings much colder temperatures, with a minimum of -20°C (-5°F), an average of just 1°C (34°F), and a maximum of 18°C (65°F). Precipitation is lower at 59 mm (2.3 in), occurring over fewer days (7), and humidity peaks slightly at 84%. For a more detailed look at December’s climate, you can visit Grant Park weather in December.
As May unfolds in Grant Park, it brings a delightful shift from the chilly embrace of earlier months. The warmth blankets the area, offering a comfortable average temperature that invites outdoor activities. However, the increased humidity and sporadic rainfall remind us that spring is still in transition, often resulting in humid days interspersed with refreshing showers. This blend of warmth and moisture sets May apart, creating a vibrant landscape that's uniquely inviting. To explore more about how weather patterns evolve throughout the year, check out Grant Park Climate.