May Weather in Galena, United States

Last updated: February 24, 2025

May in Galena, United States, showcases dynamic weather patterns characterized by a maximum temperature soaring to 34°C (94°F), while the average temperature rests at a comfortable 16°C (61°F). As spring unfolds, temperatures can drop to a chilly -1°C (30°F), highlighting the region's variability. Rainfall is notably present, with a total precipitation amount of 146 mm (5.8 in) spread across 15 days, resulting in an overall humidity level of 75%. This combination of warm days and frequent rain contributes to the lush landscape, making May a vibrant and inviting time to experience Galena's natural beauty.

May Temperature in Galena

In May, Galena, United States, experiences a refreshing shift in temperatures as spring unfolds. The minimum temperature hovers around -1°C (30°F), indicating a mild start to the season, while the average climbs to a comfortable 16°C (61°F), offering a pleasant respite from the winter chill. With a maximum temperature peaking at 34°C (94°F), May often serves as a precursor to the warmer months ahead, showcasing significant warming trends compared to the preceding months. This transition is particularly evident when juxtaposed with April, where temperatures average only 8°C (47°F). Overall, May encapsulates the essence of spring's promise, inviting both residents and visitors to enjoy the increasingly warm and sunny days in Galena.

May Weather in Galena: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in Galena, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec222337476172757266523730
Data source: Temperature data for Galena generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

May Precipitation in Galena

In May, Galena experiences a significant uptick in precipitation, with 146 mm (5.8 in) of rainfall over 15 days. This marks a noticeable increase compared to the preceding months, particularly April's 88 mm (3.5 in), suggesting that May is a time when the region transitions into its wetter season. This trend aligns with the pattern observed in prior months, where precipitation gradually rises from January's 50 mm (2.0 in) to an impressive mid-spring peak in May. The increased frequency of rainy days not only enhances the lushness of the landscape but also indicates a shift toward more unpredictable weather as summer approaches. Galena's May precipitation is a key contributor to the area's vibrant ecosystem, reinforcing the importance of this month in the annual rainfall cycle.

May Precipitation Trends in Galena

The chart displays monthly precipitation patterns in Galena, with values for each month alongside May's data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how May's conditions compare to those of other months.
JanFebMarAprMayJunJulAugSepOctNovDec5060658814613488951121154543
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Galena

In May, Galena experiences a noticeable dip in humidity, averaging 75%, which marks a significant shift from the persistently high levels earlier in the year. Following a steady decline from January's 84%, this reduction brings a breath of fresh air just as the warmer months approach. As spring transitions into summer, the humidity levels seem to fluctuate, dipping again to 75% in July before hitting their lowest in August at 69%. This trend highlights a seasonal pattern where May serves as a transitional month, paving the way for more comfortable, less humid conditions that characterize the summer season in Galena. With increasing temperatures, the drop in humidity is particularly welcomed, enhancing the outdoor experience for visitors and residents alike.

May Average Humidity in Galena

This chart illustrates the average monthly humidity levels in Galena, with May's data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, allowing you to see how May's humidity levels compare to other months.
JanFebMarAprMayJunJulAugSepOctNovDec84%85%84%83%75%79%75%69%74%79%88%82%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Galena

As spring transitions into summer, May in Galena brings an impressive UV Index of 9, indicating a very high exposure level that reduces burn time to just 15 minutes. This marks a notable increase from April's index of 8, highlighting the intensifying sun as the days grow longer and warmer. As we move further into the summer months, the UV Index remains elevated, peaking at 10 in June and July, then gradually dipping back to 9 in August. It's essential to be vigilant about sun safety during May and beyond, as the risk of skin damage rises significantly. For more information on how to protect yourself from UV rays, visit Galena UV Index.

Maximum UV Index Levels in Galena for May

The chart shows the monthly maximum UV Index (UVI) for Galena in May, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues.
JanFebMarAprMayJunJulAugSepOctNovDec34689101098532
Data source: Galena May UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

May Sunshine in Galena

As spring transitions into summer, May in Galena, United States, shines with an impressive 264 hours of sunshine, marking a delightful peak in daylight hours compared to the previous months. This increase follows a steady upward trend from January's modest 133 hours, gradually climbing through the spring months. With each passing month, the sunshine becomes more abundant, culminating in May's vibrant display before the sun truly reaches its zenith in July at 361 hours. This lush light during May not only brightens the landscape but also invites outdoor activities and gatherings, making it a cherished month for locals and visitors alike. The sunshine, beginning to taper off in the following months, heralds the playful balance of summer and the onset of fall, showcasing Galena's dynamic weather patterns and seasonal charm.

Monthly Sunshine Duration in Galena: May Highlighted

The May sunshine duration represents the total number of hours Galena experiences direct sunlight during the month of May, excluding cloudy or obstructed periods. This chart compares the sunshine duration of May with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec133h194h234h241h264h328h361h333h273h214h198h189h
Data source: Galena May Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Galena During May

When it comes to the likelihood of sunny weather in Galena during May, the chance sits at a moderate 35%. This figure aligns closely with the previous month's 36%, suggesting a slight consistency in the early spring weather patterns. As we analyze the overall trend, we notice a gradual increase in sunny days as the year progresses, with May leading into the sunnier months of June and July, which boast chances of 51% and 46% respectively. While May’s sunshine likelihood remains stable, it serves as a precursor to the brighter, more vibrant summer months that follow, making it a transitional period worth celebrating for those who enjoy the outdoors.

Percentage of Sunny Days in May in Galena

The chart illustrates the percentage of sunny days in Galena throughout the year, with May highlighted. It highlights the variation in sunshine across each month and provides an overview of the typical frequency of sunny days, offering insights into how often Galena experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec26%35%43%36%35%51%46%57%63%37%42%39%
Data source: Galena May chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Galena in May

As May unfolds in Galena, United States, the length of daylight reaches a delightful 14 hours, marking a significant increase from the 13 hours of April. This upward trend in daylight duration is a refreshing prelude to the sun-drenched months of June and July, where peak sunlight hours soar to 15 hours, setting the stage for vibrant summer activities. However, after reaching this summer zenith, daylight gradually begins to wane, transitioning back to 13 hours in August and continuing its descent through the fall months. This seasonal dance of sunlight not only enhances the natural beauty of Galena but also invites residents and visitors alike to embrace the longer days and warmth of spring.

Average Daylight Hours in Galena for May

The chart illustrates the variation in daylight duration in Galena throughout the year, with May highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 27m10h 33m11h 58m13h 24m14h 37m15h 14m14h 54m13h 48m12h 25m10h 59m9h 44m9h 5m
Data source: Galena daylight hours, calculated by summing the hours between sunrise and sunset for each day.

May Winds in Galena

In May, Galena experiences a gentle breeze with an average wind speed of 3.5 m/s (8 mph), marking a slight dip from the windier months of March and November, which both boast averages of 3.9 m/s (9 mph). As spring unfolds, the winds become more moderate, complementing the region's vibrant blossoming landscape. Interestingly, June sees a further decrease to 2.9 m/s (6 mph), continuing a seasonal trend toward calmer conditions. This gradual reduction in wind speed from the spring peak suggests a transition into the warmer months, where the stillness enhances the tranquil ambiance of Galena's stunning scenery. Overall, May serves as a pivotal month, balancing gentle winds with the awakening of nature, setting the stage for the leisurely summer days ahead.

Average May Wind Speed in Galena

The chart displays monthly wind speed patterns in Galena, with values for each month shown alongside May's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how May's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec3.13.33.93.73.5 m/s2.92.62.63.23.33.93.7
Data source: Galena May wind data, generated using information from the Copernicus Climate Change Service.

How May Weather in Galena Compares to Other Months

The weather in Galena 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 Galena and find detailed weather information for every month.

May and January present stark contrasts in weather. In May, temperatures range from a chilly minimum of -1°C (30°F) to a warm maximum of 34°C (94°F), with an average of 16°C (61°F). The month sees substantial rainfall, with 146 mm (5.8 in) of precipitation over 15 days, accompanied by a humidity level of 75%. In contrast, January experiences frigid conditions, characterized by a minimum temperature plunging to -32°C (-26°F) and a maximum of only 10°C (50°F), resulting in a much colder average of -6°C (22°F). Despite lower precipitation at 50 mm (2.0 in) over just 8 days, January has a higher humidity rate of 84%. For more detailed insights, check out Galena weather in January.

May and February present strikingly different weather conditions. In May, temperatures range from a chilly -1°C (30°F) at night to a warm 34°C (94°F) during the day, with an average of 16°C (61°F). However, May also sees substantial rainfall, with 146 mm (5.8 in) over about 15 days and humidity levels around 75%. In contrast, February experiences much colder temperatures, with a minimum of -33°C (-27°F) and a maximum of 20°C (69°F), averaging -5°C (24°F). Precipitation in February is significantly lower, at 60 mm (2.4 in) spread over just 8 days, while humidity levels are slightly higher at 85%. To learn more about February weather, you can check Galena weather in February.

May and March exhibit stark contrasts in weather characteristics. In May, temperatures range from a chilly minimum of -1°C (30°F) to a warm maximum of 34°C (94°F), with an average of 16°C (61°F), while March experiences a colder climate, with temperatures swinging from -24°C (-11°F) to a maximum of 23°C (73°F) and an average of just 3°C (37°F). Precipitation in May is significantly higher, totaling 146 mm (5.8 in) over 15 days, compared to March’s 65 mm (2.5 in) over 10 days. Additionally, humidity levels are slightly lower in May at 75%, compared to March’s 84%. For a more detailed look, you can check the Galena weather in March.

When comparing the weather in May to that of April, we notice a significant increase in temperatures. May's minimum temperature is a mild -1°C (30°F), with an average of 16°C (61°F), and peaks at a warm 34°C (94°F). In contrast, April experiences cooler conditions, with minimum temperatures dropping to -8°C (18°F) and an average of only 8°C (47°F), reaching a maximum of 27°C (80°F). Additionally, May sees higher precipitation levels at 146 mm (5.8 in) over 15 days, compared to April's 88 mm (3.5 in) across 11 days, though April has a slightly higher humidity of 83% versus May's 75%. For a more detailed look at April's weather, check out Galena weather in April.

In comparing the weather between May and June, we see some notable differences and similarities. May experiences a broader temperature range, with minimums dropping to -1°C (30°F) and maximums peaking at 34°C (94°F), whereas June's temperatures are more moderate, ranging from 10°C (49°F) to a similar high of 34°C (93°F). Precipitation is slightly lower in June, with 134 mm (5.3 in) of rain falling over 11 days compared to May’s 146 mm (5.8 in) over 15 days. Additionally, humidity increases slightly in June to 79%, up from 75% in May. For a closer look at June’s climate specifics, you can check out Galena weather in June.

In May, temperatures can vary significantly, with a minimum of -1°C (30°F) and a maximum of 34°C (94°F), averaging around 16°C (61°F). This month also experiences considerable rainfall, with 146 mm (5.8 in) of precipitation over about 15 days, while humidity levels remain high at 75%. In contrast, July offers a much warmer experience, with temperatures ranging from a minimum of 13°C (56°F) to a maximum of 35°C (95°F) and an average of 24°C (76°F). Precipitation decreases notably to 88 mm (3.4 in) over 12 days, but the humidity remains consistent at 75%. For more details on July weather specifics, check out Galena weather in July.

May and August present distinct weather patterns, with May experiencing a broader temperature range from a chilly minimum of -1°C (30°F) to a maximum of 34°C (94°F), while August sees milder temperatures, fluctuating between a minimum of 12°C (53°F) and a maximum of 33°C (91°F). Precipitation levels in May are noticeably higher, totaling 146 mm (5.8 in) over 15 days, compared to August's 95 mm (3.7 in) over just 10 days. Moreover, humidity in May averages 75%, slightly outpacing the more comfortable 69% in August. For a closer look at August's climate, visit Galena weather in August.

May and September both offer a transitional climate, but with distinct differences in temperature and precipitation. In May, temperatures fluctuate from a chilly minimum of -1°C (30°F) to a warm maximum of 34°C (94°F), with an average of 16°C (61°F). This month typically sees about 146 mm (5.8 in) of rain over 15 days, contributing to a high humidity level of 75%. In contrast, September presents a slightly milder temperature range, with minimums of 3°C (38°F) and maximums reaching 33°C (91°F), averaging 19°C (66°F). Additionally, precipitation decreases to approximately 112 mm (4.4 in) over 9 days, and humidity is marginally lower at 74%. For a more detailed look at September's weather, check out Galena weather in September.

May and October present distinct weather patterns. In May, temperatures range from a chilly min of -1°C (30°F) to a warm max of 34°C (94°F), with an average of 16°C (61°F). The month experiences considerable rainfall, with 146 mm (5.8 in) over 15 days, contributing to a humidity level of 75%. In contrast, October shows cooler temperatures, with a minimum of -4°C (24°F), an average of 11°C (52°F), and a maximum of 30°C (86°F). While October sees a slightly lower precipitation total of 115 mm (4.5 in) over 11 days, humidity rises marginally to 79%. This shift highlights the transition from the vibrant warmth of late spring to the crisp, fall atmosphere. For more detailed information, check Galena weather in October.

May and November present contrasting weather experiences. In May, temperatures range from a chilly minimum of -1°C (30°F) to a warm maximum of 34°C (94°F), with an average of 16°C (61°F). The month typically sees about 146 mm (5.8 in) of precipitation over 15 days, creating a humid environment with humidity levels around 75%. In stark contrast, November features much colder temperatures, with a minimum of -15°C (5°F), an average of just 3°C (37°F), and a maximum of 22°C (72°F). Precipitation is significantly lower at around 45 mm (1.8 in) over just 7 days, and the humidity rises to 88%. For more detailed insights, check out Galena weather in November.

The weather in May is notably warmer than in December, with temperatures ranging from a chilly minimum of -1°C (30°F) to a scorching maximum of 34°C (94°F), while December typically experiences much colder temperatures, with a minimum of -21°C (-6°F) and a maximum of 20°C (68°F). In May, precipitation is more frequent, occurring on about 15 days and totaling 146 mm (5.8 in), in contrast to December's lighter rainfall of 43 mm (1.7 in) over just 6 days. Humidity levels are slightly higher in December at 82%, compared to 75% in May, which can make the colder months feel even more biting. For detailed information on December weather, you can check Galena weather in December.

Compare Galena's Climate with Cities Worldwide

Conclusion: What to Expect From May Weather in Galena

As May unfolds in Galena, the weather marks a delightful transition from the chill of early spring to a warmer embrace of late spring. With average temperatures rising to a comfortable 16°C (61°F), the days become increasingly pleasant compared to the brisk temperatures of March and April. However, expect some variability, as temperatures can peak at a sweltering 34°C (94°F) or dip near freezing at night. May also welcomes a fair share of rain**, with precipitation occurring on about half the month, creating a lush landscape that starkly contrasts the drier tendencies of previous months. With humidity levels hovering around 75%, the air feels rich and alive, adding to the vibrant atmosphere of this beautiful season in Galena. To learn more about the climate in this charming town, visit Galena Climate.