Last updated: February 24, 2025
June in St. Louis presents a vibrant climatic tapestry, characterized by soaring temperatures and lush humidity. With a maximum reach of 36°C (98°F) and an average of 25°C (77°F), the month invites both outdoor adventures and evening cooldowns. While the minimum temperature dips to a comfortable 12°C (54°F), it’s the moisture-laden air, boasting a significant humidity level of 83%, that defines the season. June also witnesses a total precipitation of 101 mm (4.0 in) spread over 11 days, adding a refreshing twist to the balmy days, making it a month where sunshine and showers harmoniously coexist.
In June, St. Louis starts to embrace the warmth of summer, with temperatures reflecting a significant upward trend compared to the chillier months. The minimum temperature rises to a comfortable 12°C (54°F), while the average settles at a pleasant 25°C (77°F), inviting outdoor activities and gatherings. On the warmer side, the maximum temperature can reach a sizzling 36°C (98°F), making it the perfect time for enjoying the city's vibrant parks and riverside scenes. This dramatic shift from the colder months underscores June's role as a gateway to summer, characterized by long days and balmy evenings. As the city heats up, residents and visitors alike relish in the lush landscapes, engaging in the seasonal festivities that define St. Louis during this lively month.
In June, St. Louis experiences a notable drop in precipitation compared to the previous months, recording 101 mm (4.0 in) over 11 days of rain. While this month's rainfall is significant, it marks a decrease from the lush totals observed in May, which boasted 145 mm (5.7 in) across 14 days. This pattern reflects a gradual tapering of precipitation as the region transitions into summer. The rain received this month helps maintain lush greenery before the drier July, which averages a slightly lower 97 mm (3.8 in) of rain on the same number of days. Overall, June's weather captures a mid-year balance, providing a refreshing blend of showers that support the vibrant landscapes of St. Louis.
In June, St. Louis experiences a notable increase in humidity, peaking at 83%. This slight rise from May's 82% sets the stage for a typically sultry summer, where the air feels thick and heavy. The trend of elevated humidity levels during the early summer months is consistent, as seen in the nearby months of April through July, which hover around 80% to 83%. Interestingly, this June humidity marks the beginning of a gradual decline leading into the cooler months, where September and October witness a drop to 76%. Overall, the city’s humidity levels tell the story of a sweltering summer transition, with June serving as a pivotal month before the seasonal shift begins.
As June rolls into St. Louis, the UV Index peaks, soaring to an extreme level of 11. This marks a significant increase from the previous months, where values transitioned from a moderate 3 in January to a very high 10 in May. With such high UV levels, residents should be cautious, as the burn time decreases to a mere 10 minutes. This trend underscores the importance of sun safety during summer, as exposure can lead to serious skin damage in no time. As temperatures rise and outdoor activities beckon, staying informed about the UV Index is crucial for protecting your skin. For more details on UV levels throughout the year, visit St. Louis UV Index.
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June brings a radiant burst of sunshine to St. Louis, with an impressive 328 hours of bright daylight illuminating the city. This month marks an unmistakable peak in sunlight, following a steady increase from the 125 hours in January to a hearty 287 hours in May. As summer embraces the region, residents and visitors alike revel in the warm glow that continues into July, which boasts an even greater 348 hours of sunshine. This trend highlights the city's transformation into a vibrant, sun-soaked paradise, inviting outdoor activities, festivals, and an undeniable sense of joy. As the days gradually shorten toward autumn, the summertime sunshine serves as a cherished reminder of St. Louis's lively summer spirit.
As we look forward to June in St. Louis, there’s a notable pattern in the city’s sunny weather expectations. With a 41% chance of sunny days, June sits at a moderate level compared to its preceding months, particularly following the somewhat gloomy May, which only offered a 26% chance for sunshine. Interestingly, this percentage rises significantly in July to 51%, suggesting that summer truly begins to bloom as the season progresses. Moreover, when we examine the year as a whole, June tends to deliver a pleasant balance—more sunny than the early spring months like March and April but less so than the peak summer months that follow. This trend indicates that while June might not boast the highest likelihood of sunshine, it's still a month where residents can enjoy a noteworthy amount of bright days, paving the way for the vibrant energy of summer.
In St. Louis, June marks the peak of daylight duration, offering 14 hours of sunlight that sustains the vibrant energy of the summer months. This extended light follows a steady upward trend from January's modest 9 hours as the days gradually lengthen through spring. Notably, daylight reaches its zenith in both June and July before gently tapering off in August, where it decreases to 13 hours. As the year progresses into the fall, the days continue to shorten, reflecting the cyclical nature of seasons. This rhythmic shift from long, sun-drenched days in early summer to shorter days in autumn beautifully encapsulates the essence of St. Louis's changing climate.
In June, St. Louis experiences a noticeable dip in average wind speed, registering at just 2.8 m/s (6 mph). This marks a continued decline from the breezier months of spring, as the winds mellow out following a peak in March at 3.8 m/s (9 mph). The trend is particularly evident as summer approaches, with July and August following suit at even lower speeds of 2.1 m/s (5 mph) and 2.4 m/s (5 mph) respectively. This gentle shift into calmer conditions can be inviting, offering residents a chance to enjoy the outdoor warmth without the interruption of brisk winds. As the year progresses, the transition from the livelier breezes of earlier months to the softer summer air speaks to the region's dynamic climate, promising a different kind of weather experience.
The weather in St. Louis changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of June's weather with other months, highlighting differences in temperature, precipitation, and other key factors. Click on each section to discover seasonal trends in St. Louis and find detailed weather information for every month.
June and January present starkly contrasting weather conditions. In June, temperatures range from a cool 12°C (54°F) to a scorching 36°C (98°F), with an average of 25°C (77°F). The month is characterized by high humidity at 83% and significant precipitation, totaling 101 mm (4.0 in) over approximately 11 days. In contrast, January experiences frigid conditions, with temperatures dipping as low as -22°C (-7°F), averaging around 0°C (32°F), and peaking at just 19°C (67°F). Although January sees less precipitation at 76 mm (3.0 in) over 8 days, the humidity remains relatively high at 82%. For more details, you can check St. Louis weather in January.
June and February present strikingly different weather in terms of temperature, precipitation, and humidity. In June, temperatures soar with a minimum of 12°C (54°F) and can reach as high as 36°C (98°F), accompanied by an average temperature of 25°C (77°F). This month experiences substantial humidity at 83% and a total precipitation of 101 mm (4.0 in) over 11 days. In contrast, February's weather is far cooler, with a chilling minimum temperature of -19°C (-1°F) rising only to an average of 2°C (35°F) and a maximum of 24°C (76°F). Despite February being milder than one might expect, its precipitation is slightly less at 80 mm (3.2 in) across 10 days, coupled with a humidity level of 80%. For more detailed insights, check St. Louis weather in February.
The weather in June is significantly warmer compared to March, with temperatures ranging from a minimum of 12°C (54°F) to a maximum of 36°C (98°F) and an average of 25°C (77°F). In contrast, March experiences much cooler temperatures, with a minimum of -17°C (2°F) and a maximum of 27°C (81°F), averaging only 8°C (47°F). Additionally, June sees about 101 mm (4.0 in) of precipitation over 11 days, while March has slightly higher precipitation at 131 mm (5.2 in) over 12 days. Despite the higher temperatures in June, both months have relatively high humidity, with June at 83% and March at 80%. For a more detailed look at March weather, you can refer to St. Louis weather in March.
When comparing the weather in June and April, it’s clear that June is significantly warmer, with average temperatures soaring to 25°C (77°F) and peak highs reaching up to 36°C (98°F). In contrast, April's temperatures range from a chilly -4°C (24°F) at night to a pleasant 30°C (87°F) during the day, making it cooler overall. Both months experience similar levels of precipitation, with April slightly wetter at 129 mm (5.1 in) compared to June's 101 mm (4.0 in), and both months seeing rainfall on approximately 11 days. While the humidity is a bit higher in June at 83%, April remains comparatively comfortable with a humidity level of 80%. For more detailed information about April weather, check out St. Louis weather in April.
In comparing the weather of June to that of May, June tends to be warmer, with average temperatures rising from 20°C (68°F) in May to 25°C (77°F) in June. The maximum temperatures also climb higher, with June reaching up to 36°C (98°F), compared to May's peak of 34°C (94°F). However, June experiences slightly more precipitation, with 101 mm (4.0 in) over 11 days, while May records 145 mm (5.7 in) across 14 days. Both months have similar humidity levels, hovering around 83% in June and 82% in May. For more detailed information, you can check St. Louis weather in May.
In June, the weather features a comfortable average temperature of 25°C (77°F), with a minimum of 12°C (54°F) and a maximum of 36°C (98°F). The month sees a total precipitation of 101 mm (4.0 in) over 11 days and high humidity levels at 83%. In comparison, July experiences slightly warmer temperatures, with an average of 26°C (80°F), a minimum of 16°C (61°F), and a maximum of 38°C (101°F). Precipitation is slightly lower in July at 97 mm (3.8 in), also over 11 days, and humidity is marginally less at 81%. For more details, visit St. Louis weather in July.
In comparing the weather between June and August, we see similar temperature patterns, with June averaging 25°C (77°F) and August slightly cooler at 25°C (76°F). Both months have a minimum temperature of 12°C (54°F), but June reaches a maximum of 36°C (98°F), a bit warmer than August's 35°C (96°F). When it comes to precipitation, August experiences a slight increase with 130 mm (5.1 in) compared to June's 101 mm (4.0 in), although both months have rain on about 11 days. Humidity levels are also similar, with June at 83% and August slightly lower at 80%. For more detailed insights on August weather, you can check St. Louis weather in August.
June and September present distinct weather patterns as summer transitions into autumn. In June, temperatures typically range from a minimum of 12°C (54°F) to a maximum of 36°C (98°F), with an average of 25°C (77°F). The month also sees significant precipitation, totaling 101 mm (4.0 in) over about 11 days, accompanied by high humidity at 83%. In contrast, September offers cooler temperatures, with a low of 7°C (45°F) and a high of 35°C (95°F), averaging 22°C (73°F). Precipitation decreases to 56 mm (2.2 in) across approximately 7 days, and humidity wanes to 76%. For more detailed insights into September's climate, you can check St. Louis weather in September.
June and October present quite contrasting weather conditions. In June, temperatures range from a mild 12°C (54°F) at night to a scorching 36°C (98°F) during the day, with an average of 25°C (77°F). The month experiences significant humidity at 83% and receives about 101 mm (4.0 in) of precipitation over 11 days. Conversely, October brings a cooler climate, with temperatures dipping as low as -4°C (26°F) at night and peaking at 34°C (93°F), averaging 15°C (59°F). It has a similar level of precipitation at 105 mm (4.1 in) over the same number of days, but with a lower humidity of 76%. For more detailed insights, please check St. Louis weather in October.
June and November present strikingly different weather conditions. In June, temperatures range from a warm minimum of 12°C (54°F) to a scorching maximum of 36°C (98°F), with an average of 25°C (77°F). The month also experiences considerable humidity at 83% and about 101 mm (4.0 in) of precipitation spread over 11 days. In contrast, November features much cooler temperatures, with a minimum of -13°C (9°F) and a maximum of 25°C (78°F), averaging around 7°C (44°F). The precipitation is lower at 75 mm (2.9 in) over 9 days, coupled with slightly higher humidity at 85%. These contrasts highlight the transition from the warmth of summer to the chill of late fall. For more information, you can check St. Louis weather in November.
June and December present stark contrasts in weather conditions. June typically enjoys warm and diverse temperatures, ranging from a cool 12°C (54°F) to a hot 36°C (98°F), with an average of 25°C (77°F). It experiences moderate rainfall with 101 mm (4.0 in) over about 11 days and a humidity level of 83%. In contrast, December brings much colder temperatures, with lows plummeting to -18°C (0°F) and a maximum of 22°C (71°F), averaging around 4°C (39°F). The month sees less precipitation at 59 mm (2.3 in) over 7 days, accompanied by a slightly higher humidity of 86%. For more detailed information, you can check out St. Louis weather in December.
As June unfolds in St. Louis, the weather takes a vibrant turn, showcasing a mix of warm days and occasional rains. Unlike the cooler months, the maximum temperatures soar, often reaching a sweltering high, while the average warmth settles comfortably above ideal for outdoor activities. However, the month is also marked by above-average humidity and persistent precipitation, with about a third of the month experiencing rain. This unique blend of heat and moisture creates a lush environment, perfect for enjoying the great outdoors, albeit with occasional weather interruptions. For a deeper dive into St. Louis weather patterns throughout the year, visit St. Louis Climate.