Last updated: February 24, 2025
Experience the vibrant October weather in Chelsea, United States, where temperatures range from a crisp 3°C (37°F) at night to a warm 34°C (93°F) during the day, averaging around 16°C (61°F). Despite the mild temperatures, October witnesses about 130 mm (5.1 in) of rainfall across 10 days, contributing to the region's 74% humidity. This blend of warmth and moisture creates a unique atmosphere, perfect for enjoying the colorful fall foliage while staying prepared for occasional showers.
As autumn deepens in Chelsea, United States, October reveals a notable shift in temperatures, characterized by a gentle coolness that signals the approach of winter. Daily minimums hover around 3°C (37°F), while the average settles at a comfortable 16°C (61°F), providing a crisp yet pleasant atmosphere perfect for outdoor activities. With maximum temperatures reaching as high as 34°C (93°F) early in the month, October offers the last taste of warmth before the cold sets in. This month serves as a transitional period, where the remnants of summer gradually fade, driving locals to embrace cozy sweaters and warmer drinks as they prepare for the chill of November.
In October, Chelsea experiences a notable shift in its precipitation patterns, receiving 130 mm (5.1 in) of rainfall over approximately 10 days. This amount positions October as one of the wetter months of the year, following closely behind the peak summer months of July and August, which reflect substantial rainfall amounts of 144 mm (5.6 in) and 126 mm (5.0 in), respectively. The trend shows a gradual increase in precipitation from the drier months of September and November, where rainfall totals drop to 91 mm (3.6 in) and 82 mm (3.2 in). October's rainfall not only marks the transition into the wetter fall season but also sets the stage for a cozy atmosphere, often complemented by the vibrant colors of autumn leaves. This combination of increased moisture and changing foliage enhances the charm of the month, making it a picturesque time in Chelsea.
In October, Chelsea experiences a noticeable shift in humidity, averaging around 74%. This increase from the summer months highlights a gradual transition as autumn settles in. Notably, it’s a middle ground between the more humid summer months of July and August, which saw levels dip to 62% and 65% respectively, and the much higher humidity that returns in November at 82%. The slight rise in October humidity suggests that while the heat of summer is behind, the air retains a bit of its moistness, preparing for the cooler, wetter months ahead. Overall, October offers a refreshing change, with humidity levels contributing to the crispness of the fall season.
As October arrives in Chelsea, the UV Index dips to a high level of 6, bringing with it a modest reduction in sun exposure risk compared to the peak summer months. With a burn time of 25 minutes, it's essential to remain mindful of sun safety, particularly for those planning outdoor activities. This month follows a summer characterized by very high UV Index ratings, where sun protection was critical. As we transition from September's 8 and enjoy cooler autumn days, this trend suggests a gradual decline in UV exposure, but vigilance is still warranted. To learn more about the UV Index trends throughout the year, visit Chelsea UV Index.
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As we step into October in Chelsea, the days start to grow shorter, but the sunshine continues to grace the area with a respectable 231 hours of sunlight. This marks a gradual decline from the peak of 353 hours in July, reflecting the natural transition of seasons. Following a vibrant summer, August and September also enjoyed generous sun, with 319 and 279 hours respectively, before October sets in. The trend shows a steady decrease, typical of the autumn months, yet October still provides a pleasant glow, often perfect for enjoying the last glimpses of outdoor activities before the chill of winter takes hold. As daylight wanes, Chelsea's charm continues to shine through, reminding us to savor these bright October days.
When considering the likelihood of sunny weather in October in Chelsea, United States, the prospects appear to be slightly muted with a 37% chance of sun. This figure stands in contrast to the higher probabilities seen in spring, notably March with a 56% chance, and November, which boasts a robust 55%. Interestingly, the summer months show a decline in sunny days, peaking in July at 44% before dipping further. As autumn sets in, the chance of sunshine in October lingers below the year’s average, reflecting a trend where the brighter days gradually yield to cooler, cloudier conditions. Ultimately, while October offers its fair share of sunny moments, it's clear that the earlier months of the year provide a more favorable forecast for sunshine in Chelsea.
As October arrives in Chelsea, United States, daylight begins its gradual decline, offering approximately 11 hours of sunlight. This month marks a transition where the days shorten after the lingering brightness of summer, which peaked with 14 hours of daylight in June and July. Following the warmth of late summer with 13 hours in August, September sees a slight dip to 12 hours, setting the stage for October's softer glow. This downward trend in daylight hours continues into the colder months, dipping further to 9 hours by November and December. The change illuminates the natural rhythm of the seasons, inviting a shift in both mood and activity as the community prepares for the cozy, indoor months ahead.
As October settles in Chelsea, the wind begins to whisper autumn's arrival with an average speed of 3.2 m/s (7 mph), maintaining a gentle yet noticeable presence similar to the breezy days of September. This slight uptick from summer's calmest months, where speeds dipped to 2.5 m/s (6 mph) in July and August, marks a shift towards the cooler season. Interestingly, October's winds hold steady alongside November, suggesting a consistency as the leaves turn and the air sharpens. This month, with its comfortable breezes, embodies the transitional spirit of fall, inviting residents to enjoy the vibrant foliage while basking in the crisp air.
The weather in Chelsea changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of October's weather with other months, highlighting differences in temperature, precipitation, and other key factors. Click on each section to discover seasonal trends in Chelsea and find detailed weather information for every month.
In comparison to October, which features a wide temperature range from a chilly minimum of 3°C (37°F) to a warm maximum of 34°C (93°F), January is significantly colder, with temperatures dipping as low as -18°C (0°F) and averaging only around 1°C (35°F). While October experiences a fair amount of precipitation, totaling 130 mm (5.1 in) over about 10 rainy days, January has less precipitation, measuring 66 mm (2.6 in) across 8 days, although the humidity is slightly higher at 84%. For more detailed information on the winter climate, you can check out this link: Chelsea weather in January.
October and February present markedly contrasting weather conditions. October boasts a wider temperature range, with minimums around 3°C (37°F) and maximums reaching up to 34°C (93°F), resulting in an average of 16°C (61°F). In contrast, February is much colder, with minimum temperatures plummeting to -16°C (4°F) and an average of just 3°C (37°F). While October experiences approximately 130 mm (5.1 in) of precipitation over 10 days at a humidity level of 74%, February, despite having a similar number of rainy days, sees slightly less precipitation at 107 mm (4.2 in) but higher humidity at 82%. For more detailed information, you can check Chelsea weather in February.
October and March present distinctly different weather patterns. In October, temperatures range from a minimum of 3°C (37°F) to a comfortable maximum of 34°C (93°F), with an average of 16°C (61°F). This month also experiences about 130 mm (5.1 in) of precipitation over 10 days and humidity levels around 74%. In contrast, March ushers in cooler temperatures, with a minimum of -9°C (16°F) and a lower average of 6°C (43°F), peaking at 27°C (80°F). Although March receives slightly less precipitation at 103 mm (4.0 in), it maintains higher humidity at 81%. For more detailed information about the weather during March, you can check Chelsea weather in March.
October and April present distinct weather patterns, reflecting the transition between seasons. In October, temperatures range from a minimum of 3°C (37°F) to a maximum of 34°C (93°F), with an average of 16°C (61°F) and notable humidity at 74%. In contrast, April experiences cooler conditions, with minimum temperatures dropping to -1°C (31°F) and an average of 12°C (53°F), peaking at 29°C (85°F). While October sees around 130 mm (5.1 in) of precipitation over approximately 10 days, April has slightly less with 111 mm (4.4 in) over about 12 days. For more detailed insights, you can explore Chelsea weather in April.
October and May exhibit similar temperature ranges, with both months experiencing minimum temperatures around 2-3°C (37°F) and average highs near 16-17°C (61-63°F). October, however, tends to be warmer at its peak, reaching a maximum of 34°C (93°F) compared to May's 32°C (90°F). Precipitation levels are comparable, with October receiving slightly more rain at 130 mm (5.1 in) over about 10 days, while May has 118 mm (4.6 in) spread over 12 days. October also has higher humidity at 74%, compared to May's 69%. For more details on May weather patterns, visit Chelsea weather in May.
October and June present contrasting weather conditions. In October, temperatures can range from a chilly 3°C (37°F) to a warm 34°C (93°F), with an average temperature of 16°C (61°F). This month is marked by significant precipitation, averaging 130 mm (5.1 in) over approximately 10 days, and a higher humidity level of 74%. In comparison, June boasts warmer temperatures, with a minimum of 10°C (50°F) and a maximum of 35°C (96°F), resulting in a more pleasant average of 22°C (73°F). Despite a slightly lower total precipitation of 94 mm (3.7 in) over 13 days, June maintains a comfortable humidity level of 69%. For a closer look at June weather specifics, check out Chelsea weather in June.
When comparing the weather in October and July, notable differences emerge. October sees a wider range of temperatures, with a minimum of 3°C (37°F) and a maximum of 34°C (93°F), resulting in an average of 16°C (61°F). In contrast, July maintains a warmer profile, with temperatures ranging from a minimum of 16°C (61°F) to a maximum of 36°C (97°F), averaging 26°C (79°F). Precipitation levels are slightly higher in July, with 144 mm (5.6 in) over 14 days compared to October's 130 mm (5.1 in) over 10 days. Additionally, October experiences higher humidity at 74%, while July is relatively drier at 62%. For more specific insights into July weather, you can visit Chelsea weather in July.
When comparing the weather in October and August, notable differences emerge. October experiences a wider range of temperatures, with minimums plunging to 3°C (37°F) and maximums reaching up to 34°C (93°F), while August maintains a milder temperature spectrum, ranging from 15°C (60°F) to 35°C (95°F). Precipitation levels are relatively similar, with October receiving 130 mm (5.1 in) over approximately 10 days, compared to August's 126 mm (5.0 in) over 14 days. Furthermore, October's higher humidity at 74% contrasts with August's more comfortable 65%, making October feel wetter despite the comparable rainfall. For more detailed information, you can check Chelsea weather in August.
In comparing the weather patterns of October and September, October notably experiences a significant drop in minimum temperatures, averaging 3°C (37°F) compared to September’s milder 8°C (47°F). While both months share a maximum temperature peak of 34°C (93°F), October presents a lower average temperature of 16°C (61°F) compared to September's 21°C (71°F). Additionally, October sees an increase in precipitation, with 130 mm (5.1 in) over 10 days, surpassing September's 91 mm (3.6 in) during the same number of days. The humidity also rises slightly in October to 74%, compared to September's 68%. For more detailed information, you can check Chelsea weather in September.
October experiences a wider temperature range, with minimums around 3°C (37°F) and maximums peaking at 34°C (93°F), while November sees much cooler averages, dipping to a minimum of -9°C (17°F) and peaking at 25°C (76°F). The overall average temperature in October is significantly higher at 16°C (61°F) compared to November's average of 8°C (47°F). Although October has more precipitation at 130 mm (5.1 in) over 10 days, November's rainfall of 82 mm (3.2 in) over 9 days comes with slightly higher humidity levels at 82%. For more details on weather patterns, check out Chelsea weather in November.
October and December present strikingly contrasting weather patterns. In October, temperatures range from a cool 3°C (37°F) at night to a warm 34°C (93°F) during the day, with an average of 16°C (61°F). The month sees about 130 mm (5.1 in) of precipitation over roughly 10 days, accompanied by a humidity level of 74%. In contrast, December experiences much colder temperatures, with a minimum of -11°C (13°F) and a maximum of 19°C (66°F), averaging only 4°C (39°F). Precipitation in December is slightly lower at 102 mm (4.0 in), yet the humidity increases to 80%. For more specific insights into December weather, you can explore Chelsea weather in December.
October in Chelsea brings a notable shift in weather patterns as the warmth of summer gradually gives way to cooler temperatures. With an average temperature of 16°C (61°F) and a maximum that can peak at 34°C (93°F), this month stands out as a transitional period, featuring crisp, refreshing days alongside the chance of chilly nights that can dip to 3°C (37°F). The increased precipitation, averaging 130 mm over about 10 days, contributes to the lush autumn scenery, while humidity levels hover around 74%, adding a distinct feel to the air. As the days grow shorter and the foliage transforms, October is a reminder of nature’s cycle and a precursor to the winter months ahead. For more insights into the seasonal trends, check out Chelsea Climate.