May Weather in Dennis, United States

Last updated: February 24, 2025

In May, Dennis, United States experiences a lively climate characterized by a maximum temperature reaching 21°C (70°F) and an average of 12°C (53°F), providing a pleasant spring atmosphere. The month sees a minimum temperature of 5°C (41°F), inviting cozy evenings. Rainfall is a prominent feature, with 119 mm (4.7 in) of precipitation over approximately 12 days, contributing to the region's lush landscapes. With an average humidity level of 75%, this month exemplifies the charm of late spring in Dennis, blending mild warmth with refreshing showers.

May Temperature in Dennis

May in Dennis, United States, marks a delightful transition as spring blossoms into early summer. With minimum temperatures rising to 5°C (41°F), the chill of winter fades, giving way to an average of 12°C (53°F), and a cheerful maximum of 21°C (70°F). This upward trend from April is evident, as the community enjoys more pleasant days filled with warm sunshine and increasingly vibrant landscapes. The steady climb in temperature not only enhances outdoor activities but also sparks a renewed energy among residents, inviting them to bask in the beauty of the blooming season. As the days lengthen and the warmth builds, May sets the stage for summer's eagerly anticipated arrival.

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

The chart illustrates May temperature patterns in Dennis, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec353638455363707266594839
Data source: Temperature data for Dennis 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 Dennis

In May, Dennis experiences a balanced combination of precipitation and dry days, recording 119 mm (4.7 in) of rain over 12 days. This marks a slight dip compared to April's wetter conditions, but the consistency is evident as spring transitions into summer. Notably, with its average rainfall closely mirroring the months before and after, May maintains a rhythm that demonstrates Dennis's moderate climate. As the landscape flourishes in vibrant greens, these gentle showers contribute to both growth and a refreshing respite from the warming temperatures. This blend of rainfall and sunnier intervals makes May a delightful month in Dennis, inviting both residents and visitors to enjoy the beauty of the season.

May Precipitation Trends in Dennis

The chart displays monthly precipitation patterns in Dennis, 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.
JanFebMarAprMayJunJulAugSepOctNovDec94123118137119918382118175102136
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Dennis

In May, Dennis, United States, experiences a notable dip in humidity, dropping to 75%. This reduction marks a continuation of the gradual decline observed since early spring, where humidity has decreased from 84% in January to 79% in April. The trend suggests that as spring blooms into summer, the air begins to feel slightly less sticky. Interestingly, this shift aligns with the coastal climate, highlighting a comfortable transition before the summer months, where humidity levels generally hover around the mid-70s. As May progresses, residents can enjoy a welcoming balance of warmth and humidity, making outdoor activities all the more enjoyable.

May Average Humidity in Dennis

This chart illustrates the average monthly humidity levels in Dennis, 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%84%82%79%75%78%76%76%76%75%80%80%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Dennis

As May approaches in Dennis, United States, the UV Index climbs dramatically, reaching a high of 9, placing it firmly in the very high exposure category. This means that residents and visitors should be cautious, as the burn time is notably reduced to just 15 minutes. Following the trend from April, where the Index was a robust 8, May signals that sun safety is paramount, with the potential for skin damage increasing significantly. After the gradual rise from January's moderate level of 3, the UV Index peaks this month, and remains consistent through June and July. It's essential to stay informed and protect yourself from UV exposure during this sunny period. For more details, visit Dennis UV Index.

Maximum UV Index Levels in Dennis for May

The chart shows the monthly maximum UV Index (UVI) for Dennis 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.
JanFebMarAprMayJunJulAugSepOctNovDec3468910998642
Data source: Dennis 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 Dennis

May shines brightly in Dennis, United States, as it welcomes a splendid total of 298 hours of sunshine, showcasing the peak of spring's radiant charm. This month marks a noticeable upswing, following April's 243 hours, and sets the stage for the sunniest months ahead. As the days lengthen into June, where sunshine peaks at 326 hours, May serves as a vibrant bridge between the gentler light of early spring and the sun-drenched summers that follow. With such an abundance of sunshine, May is an ideal time to revel in the outdoors, inviting both locals and visitors to bask in the uplifting warmth of this coastal haven.

Monthly Sunshine Duration in Dennis: May Highlighted

The May sunshine duration represents the total number of hours Dennis 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.
JanFebMarAprMayJunJulAugSepOctNovDec142h184h258h243h298h326h346h330h280h236h203h165h
Data source: Dennis May Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Dennis During May

In May, Dennis, United States, enjoys a 41% chance of sunny weather, signaling the arrival of spring and promising a notable shift from the preceding months. Although slightly below the sunny prospects seen in March (57%) and notably higher than February's dismal 28%, this May average aligns closely with the overall trend of fluctuating sunlight through the early summer months. Notably, the likelihood of sunshine dips in June (38%) and July (37%), suggesting that while May offers a moderate forecast, residents and visitors should prepare for the whims of New England weather as summer approaches.

Percentage of Sunny Days in May in Dennis

The chart illustrates the percentage of sunny days in Dennis 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 Dennis experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec36%28%57%43%41%38%37%35%49%44%52%28%
Data source: Dennis May chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Dennis in May

As spring unfolds in Dennis, United States, May brings an inviting increase in daylight, reaching 14 hours—a delightful culmination of the longer days that began in April. This trend reflects the gradual lengthening of daylight as the year progresses, with January's mere 9 hours giving way to progressively brighter months. Following May, June peaks at an impressive 15 hours of daylight, while July maintains a generous 14 hours before the gradual decline begins in late summer. This consistent increase not only enhances outdoor activities but also fosters a vibrant atmosphere as nature fully awakens, making May a particularly cherished month for residents.

Average Daylight Hours in Dennis for May

The chart illustrates the variation in daylight duration in Dennis throughout the year, with May highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 31m10h 36m11h 58m13h 22m14h 33m15h 8m14h 49m13h 45m12h 25m11h 1m9h 48m9h 11m
Data source: Dennis daylight hours, calculated by summing the hours between sunrise and sunset for each day.

May Winds in Dennis

In May, the winds in Dennis, United States begin to shift, with an average speed of 5.9 m/s (13 mph), marking the slowest pace of the year so far. This decline from the earlier months, where winds hovered around 7.1 m/s to 7.2 m/s, signals a transition into the warmer season. As spring unfolds into summer, wind speeds continue to dip, reaching their annual low in July at 5.2 m/s (12 mph). However, there's a subtle rebound as wind speeds rise again in October and November, hinting at the seasonal variability typical of this coastal region. This gentle ebb and flow of winds not only enhances the charm of May in Dennis but also indicates a gradual shift toward the calmer breezes of summertime.

Average May Wind Speed in Dennis

The chart displays monthly wind speed patterns in Dennis, 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.
JanFebMarAprMayJunJulAugSepOctNovDec7.17.27.06.55.9 m/s6.25.24.85.96.66.76.6
Data source: Dennis May wind data, generated using information from the Copernicus Climate Change Service.

How May Weather in Dennis Compares to Other Months

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

May and January present stark contrasts in weather conditions. In May, temperatures range from a mild 5°C (41°F) to a pleasant maximum of 21°C (70°F), with an average of 12°C (53°F). Although the month experiences considerable rainfall, totaling 119 mm (4.7 in) over 12 days, humidity levels sit at a moderate 75%. In comparison, January is much colder, featuring temperatures that dip as low as -14°C (6°F) and only rise to a maximum of 13°C (55°F), with an average temperature of 2°C (36°F). While January sees less precipitation at 94 mm (3.7 in) over 10 days, the humidity is higher at 84%. For more detailed insights on January weather, check out Dennis weather in January.

In comparing the weather of May and February, there is a stark contrast in temperatures and overall climate conditions. May enjoys a generally mild climate, with temperatures ranging from a minimum of 5°C (41°F) to a pleasant maximum of 21°C (70°F), whereas February experiences much colder conditions, with temperatures dipping as low as -12°C (10°F) and averaging around 2°C (36°F). Although both months see similar levels of precipitation—119 mm (4.7 in) in May compared to 123 mm (4.8 in) in February—the higher humidity in February at 84% contrasts with May's 75%, leading to a chillier feel during the winter month. For more detailed weather insights, you can refer to Dennis weather in February.

When comparing the weather in May and March, it's clear that May enjoys significantly milder temperatures, with a minimum of 5°C (41°F) and an average of 12°C (53°F), compared to March's chilly minimum of -9°C (16°F) and average of 3°C (38°F). March sees slightly less precipitation, at 118 mm (4.7 in) over 10 days, than May's 119 mm (4.7 in) across 12 days. Humidity levels are also higher in March at 82%, compared to 75% in May, suggesting that while May is wetter, March can feel more damp and colder. For a more detailed look at March conditions, check out Dennis weather in March.

In comparing the weather between April and May, it is evident that May brings warmer temperatures, with a minimum of 5°C (41°F) and an average of 12°C (53°F), compared to April's minimum of 1°C (33°F) and average of 7°C (46°F). While May showcases a maximum of 21°C (70°F), April only reaches up to 16°C (60°F). However, April experiences slightly more precipitation with 137 mm (5.4 in) over 13 days, while May sees 119 mm (4.7 in) across 12 days. Humidity levels are also higher in April at 79%, compared to May's 75%. For more detailed insights about April's weather in Dennis, you can refer to Dennis weather in April.

May tends to be cooler than June, with average temperatures ranging from a minimum of 5°C (41°F) to a maximum of 21°C (70°F), compared to June's milder range of 10°C (51°F) to 24°C (76°F). Additionally, May experiences higher rainfall, accumulating 119 mm (4.7 in) over 12 days, while June sees less precipitation at 91 mm (3.6 in) across 10 days. Despite the slight increase in humidity in June at 78%, both months offer a noticeable transition into warmer summer weather. For more specific weather details, you can visit Dennis weather in June.

May and July exhibit significant differences in weather patterns. In May, temperatures range from a chilly minimum of 5°C (41°F) to a mild maximum of 21°C (70°F), with an average of 12°C (53°F). This month also sees considerable precipitation, totaling 119 mm (4.7 in) over 12 days, alongside a humidity level of 75%. In contrast, July experiences much warmer conditions, with temperatures ranging from a minimum of 16°C (61°F) to a maximum of 29°C (84°F) and an average of 21°C (71°F). Additionally, it sees less rainfall, with 83 mm (3.3 in) over just 9 days and a slightly higher humidity level of 76%. For more information on weather specifics, visit Dennis weather in July.

In May, temperatures tend to be cooler, ranging from a minimum of 5°C (41°F) to a maximum of 21°C (70°F), with an average of 12°C (53°F). This month experiences considerable rainfall, with 119 mm (4.7 in) over about 12 days, and a humidity level of 75%. In contrast, August brings warmer temperatures, featuring a minimum of 16°C (61°F) and peaking at 27°C (81°F), with an average of 22°C (72°F). Precipitation is less frequent in August, totaling 82 mm (3.2 in) over 8 days and a slightly higher humidity of 76%. For more details about weather conditions specifically in August, check out Dennis weather in August.

May and September exhibit notable differences in weather patterns, reflecting the transition from spring to early fall. In May, temperatures range from a cooler minimum of 5°C (41°F) to an average of 12°C (53°F) and can peak at 21°C (70°F). The month typically experiences 119 mm (4.7 in) of precipitation over approximately 12 days, maintaining a humidity level of 75%.

In contrast, September boasts milder temperatures, with a minimum of 13°C (56°F) and an average of 19°C (67°F), reaching a maximum of 25°C (78°F). Precipitation remains similar at 118 mm (4.7 in), but occurs over just 10 days, while humidity stays constant at 75%. For a detailed look at weather in September, check out this link: Dennis weather in September.

May and October present distinctly different yet somewhat mild climates. In May, temperatures range from a chilly 5°C (41°F) at night to a comfortable 21°C (70°F) during the day, with an average of 12°C (53°F). While the month experiences moderate rainfall, totaling 119 mm (4.7 in) over about 12 days, humidity hovers around 75%.

In contrast, October sees slightly cooler minimum temperatures of 4°C (39°F) and daily highs reaching up to 22°C (72°F), with an average temperature of 15°C (59°F). However, it tends to be wetter, with precipitation increasing to 175 mm (6.9 in) over the same number of days, while maintaining a humidity level of 75%. For more detailed information on October weather, you can check out Dennis weather in October.

May and November showcase distinct differences in weather patterns. In May, temperatures range from a minimum of 5°C (41°F) to a pleasant average of 12°C (53°F), reaching highs of 21°C (70°F). The month experiences considerable precipitation, with 119 mm (4.7 in) spread over 12 days, and humidity levels around 75%. In contrast, November brings cooler temperatures, with a low of -6°C (21°F) and an average temperature of 9°C (48°F), topping out at 19°C (66°F). This month sees slightly lower precipitation at 102 mm (4.0 in) over 10 days, paired with higher humidity at 80%. For more insights on November weather, check out this link: Dennis weather in November.

May and December present strikingly different weather patterns. In May, temperatures range from a mild minimum of 5°C (41°F) to a pleasant maximum of 21°C (70°F), with an average of 12°C (53°F). Precipitation is relatively moderate at 119 mm (4.7 in) over about 12 days, accompanied by a humidity level of 75%. In contrast, December features chillier conditions, with temperatures dropping significantly to a minimum of -12°C (11°F) and an average of just 4°C (40°F). The month sees a higher precipitation level of 136 mm (5.4 in), also spread across 12 days, and the humidity climbs slightly to 80%. For a closer look at December weather conditions, visit Dennis weather in December.

Compare Dennis's Climate with Cities Worldwide

Conclusion: What to Expect From May Weather in Dennis

As spring unfolds in Dennis, Massachusetts, May brings a delightful shift in weather, offering a refreshing contrast to the chillier months prior. With increasing temperatures, this month showcases the beauty of warmer days and milder evenings, making outdoor activities more enjoyable. While the average temperature hovers around a comfortable mark, the month also sees a moderate amount of rainfall, which revitalizes the lush surroundings. With humidity levels gently rising, the air carries a delightful freshness, perfect for those keen on embracing the season. For a deeper dive into the climatic patterns of this charming locale, visit Dennis Climate.