Last updated: February 24, 2025
In October, Greenwich experiences a delightful transition into the cooler months, with temperatures ranging from a minimum of 3°C (38°F) to a maximum of 32°C (90°F), while the average hovers around 15°C (60°F). This month witnesses an average humidity of 74%, contributing to a refreshing yet crisp atmosphere. As the leaves change, precipitation levels reach 132 mm (5.2 in) across 11 rainy days, adding a touch of grace to the autumn landscape. Overall, October in Greenwich offers a picturesque blend of warmth and moisture, heralding the scenic beauty of fall.
In October, Greenwich, United States, welcomes a noticeable shift in temperatures as the autumn season takes hold. With minimums around 3°C (38°F) and an average of 15°C (60°F), it marks the transition from the warmth of summer to the cooler embrace of fall. The maximum temperatures reach a comfortable 32°C (90°F), providing ample opportunities for outdoor activities amidst the vibrant foliage. Compared to the preceding months, October offers a refreshing dip from the warmer September averages, but still holds onto a touch of summer's warmth, making it a delightful month for residents and visitors alike. As the nights grow cooler and the days crisp, October embodies the beauty and charm of autumn in Greenwich.
In October, Greenwich experiences a notable rise in precipitation, with an average of 132 mm (5.2 in) falling over approximately 11 days. This places October among the wetter months of the year, following a generally dry September, which had only 98 mm (3.8 in) over 9 days. The increased rainfall often marks the transition into a more fall-like climate, characterized by cooler temperatures and vibrant foliage. Interestingly, while July typically holds the record for the highest precipitation at 143 mm (5.6 in), October's rainfall is substantial enough to signal the onset of the wetter season, highlighting a trend where late autumn brings increased moisture compared to the preceding summer months.
In October, Greenwich experiences a notable shift in humidity, averaging 74%, which marks a slight increase from the summer months. Following the dry spell of July and August, when humidity dipped to 62% and 65% respectively, October’s humidity reflects the transition to autumn. This month stands out as a bridge between the lower summer figures and the higher levels seen at the start and end of the year, such as January's 84% and November's 82%. As the leaves turn and temperatures cool, residents can expect a refreshing crispness in the air, accompanied by a moderate humidity that brings a unique comfort to the fall season.
As October rolls into Greenwich, the UV Index sees a notable decline, dropping to 6, which places it firmly in the high exposure category. This level indicates a burn time of just 25 minutes for unprotected skin, urging caution during afternoon outdoor activities. Compared to the peak months of May through September, when the UV Index consistently hovered at 8 or higher, October offers a slight reprieve, yet the risk remains significant. With the sun still strong enough to cause harm, it's wise to keep sunscreen handy and protective clothing in mind. For detailed daily insights, check out the Greenwich UV Index.
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As October unfolds in Greenwich, the days are still blessed with ample sunshine, providing an average of 218 hours of light. This signals a gradual transition from the basking summer months, where July and August boast their peaks at 339 and 315 hours respectively. With a notable withdrawal from the sun-drenched heights of summer, October offers a perfect blend of warmth and cooler breezes, inviting residents to savor the crisp fall air. The month acts as a bridge, easing into shorter daylight hours that will prevail in November's 207 hours. As the year progresses, October's brightness showcases the beauty of change, highlighted by a steady decline in sunlight that leaves a lasting impression before the clouds of winter settle in.
When considering the likelihood of sunny weather in October in Greenwich, United States, it's clear that this month presents a moderate chance of sunshine at 38%. This figure reflects a slight decline compared to the more favorable summer months, where sunshine chances peaked at the mid-40s. Interestingly, October's probabilities are not far from the previous month, September, which enjoys a 44% chance of sun, suggesting that while fall begins to settle in, some remnants of pleasant weather linger. As the year progresses into November, the outlook brightens once more, with the chance of sunny days rising to 55%. This trend indicates a seasonal ebb and flow, where October serves as a transitional period with diminishing yet still hopeful glimpses of sun before winter takes hold.
As autumn sets in, October in Greenwich, United States, brings with it a gentle shift in daylight that marks the transition towards winter. With around 11 hours of sunlight, October sees a slight decline from the longer days of summer, echoing the gradual fading of daylight that began in July. While January and November each bask in 9 hours of daylight, and the longer days of summer peak in June at 15 hours, October provides a harmonious balance, allowing residents to enjoy the vibrant colors of fall while preparing for the shorter days ahead. This rhythmic ebb and flow of daylight not only reflects the changing seasons but also offers a beautiful tapestry of nature's cycle as the year draws to a close.
As the crisp October air settles over Greenwich, average wind speeds experience a subtle uptick, reaching about 3.1 m/s (7 mph). This marks a slight increase from the late summer months, where winds gently lulled to their lowest speeds, peaking in August at just 2.4 m/s (5 mph). Transitioning into autumn, the winds begin to stir—a precursor to the more robust breezes of winter. Notably, October's wind patterns mirror those of November and December, creating a consistent backdrop as the seasons shift. The gentle yet persistent October winds provide a refreshing reminder of nature's cycles, invigorating both the landscape and the spirit of the community.
The weather in Greenwich 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 Greenwich and find detailed weather information for every month.
October and January present stark contrasts in weather conditions. October enjoys a milder climate with average temperatures ranging from a cool 3°C (38°F) to a warm 32°C (90°F), accompanied by significant precipitation of 132 mm (5.2 in) over 11 days. In contrast, January plunges into the depths of winter, with average temperatures hovering around 0°C (33°F) and dipping as low as -18°C (0°F), while experiencing less rainfall at 69 mm (2.7 in) over 8 days. Furthermore, January's humidity is notably higher at 84%, compared to October's 74%, contributing to the chill of the season. For more details about the winter climate, check out Greenwich weather in January.
October and February showcase contrasting weather patterns, reflecting the shift from autumn to winter. In October, temperatures range from a mild 3°C (38°F) at their lowest to a warm 32°C (90°F) at their peak, with an average of 15°C (60°F) and humidity at 74%. The month experiences a fair amount of rainfall, totaling 132 mm (5.2 in) over 11 days. In stark contrast, February plunges into winter, with temperatures dropping to a chilling minimum of -16°C (3°F) and a maximum reaching only 20°C (68°F), averaging just 2°C (35°F). Precipitation is slightly lower, totaling 101 mm (4.0 in) over the same number of days, but humidity rises to 82%, creating an even colder and damp atmosphere. For a closer look at February conditions, visit Greenwich weather in February.
When comparing the weather in October and March, several notable differences emerge. October typically experiences milder temperatures with a minimum of 3°C (38°F) and an average of 15°C (60°F), peaking at 32°C (90°F), while March has a colder minimum of -10°C (15°F) and an average temperature of only 5°C (41°F), with a maximum of 24°C (76°F). Precipitation levels in October are higher at 132 mm (5.2 in) over 11 days, contrasted with March's 93 mm (3.7 in) across 10 days. Additionally, October has a humidity level of 74%, which is slightly lower than March’s 81%. For more information on the specifics of March weather, you can visit Greenwich weather in March.
When comparing the weather in October and April, there are notable differences in temperature and precipitation. October experiences a wider temperature range, with a minimum of 3°C (38°F) and a maximum of 32°C (90°F), averaging around 15°C (60°F). In contrast, April's temperatures are cooler, ranging from a low of -2°C (30°F) to a high of 27°C (81°F), with an average of 10°C (51°F). Both months see considerable precipitation, although October records slightly more at 132 mm (5.2 in) over 11 days, compared to April's 114 mm (4.5 in) across 12 days. Additionally, April has a marginally higher humidity level at 78% compared to October's 74%. For more detailed insights on April weather, you can visit Greenwich weather in April.
October and May present similar temperature ranges, with October experiencing a minimum of 3°C (38°F) and an average of 15°C (60°F), while May has a slightly lower minimum of 2°C (36°F) and an average of 16°C (61°F). The maximum temperatures are nearly identical, with October reaching up to 32°C (90°F) and May peaking at 31°C (89°F). Precipitation levels in October are slightly higher at 132 mm (5.2 in) over 11 days compared to May's 114 mm (4.5 in) over 12 days. However, October's humidity is higher at 74%, compared to May's 69%. For more details on the weather, check out Greenwich weather in May.
When comparing the weather of October and June, notable differences emerge. October experiences a wider range of temperatures with a minimum of 3°C (38°F) and an average of 15°C (60°F), which can peak at a warm 32°C (90°F). In contrast, June boasts milder temperatures, starting at 9°C (49°F) and averaging around 21°C (71°F), with maximums reaching up to 34°C (93°F). Precipitation levels are also varied; October sees a higher total of 132 mm (5.2 in) over 11 days, while June has 91 mm (3.6 in) spread across 12 days. Additionally, humidity is slightly higher in October at 74%, compared to 69% in June. For more insights, check out Greenwich weather in June.
October weather offers a notable shift compared to July. While July boasts higher temperatures with an average of 25°C (77°F) and a maximum of 35°C (96°F), October's temperatures range from a cool minimum of 3°C (38°F) to an average of 15°C (60°F), reaching up to 32°C (90°F) on warmer days. Additionally, October experiences more precipitation, with 132 mm (5.2 in) over 11 days, compared to July's 143 mm (5.6 in) over 13 days. The humidity is also more pronounced in October at 74%, compared to July's lower level of 62%. For more detailed insights on July weather, you can visit Greenwich weather in July.
In comparing the weather of October and August, we see notable differences typical of the transitional seasons. October experiences a wider temperature range, with a minimum of 3°C (38°F), an average of 15°C (60°F), and a maximum of 32°C (90°F), contrasting sharply with August’s warmer temperatures, which range from a minimum of 15°C (59°F) to a maximum of 34°C (93°F), averaging around 24°C (75°F). Although both months see significant rainfall, October has slightly higher precipitation at 132 mm (5.2 in) over 11 days, while August records 123 mm (4.8 in) over 14 days. Additionally, October's humidity is higher at 74%, compared to August's 65%, contributing to a different feel in the air. For a closer look at August weather specifics, you can visit Greenwich weather in August.
The weather in October exhibits a notable shift compared to September. While September boasts higher average temperatures, with a minimum of 8°C (47°F) and a maximum of 33°C (91°F), October sees cooler extremes, starting at a minimum of 3°C (38°F) and peaking at 32°C (90°F). September also enjoys a slightly drier month, with 98 mm (3.8 in) of precipitation over 9 days, compared to October's wetter conditions with 132 mm (5.2 in) over 11 days. Additionally, October’s humidity levels are higher at 74% compared to September's 68%, contributing to a more pronounced chill in the air as the month progresses. For more detailed insights into September's weather, check Greenwich weather in September.
October and November display a notable shift in weather patterns. In October, temperatures range from a brisk 3°C (38°F) at night to a warm 32°C (90°F) during the day, with an average of 15°C (60°F). The month experiences significant rainfall, totaling 132 mm (5.2 in) over 11 days, and the humidity sits at 74%. In contrast, November brings cooler temperatures, with lows dropping to -9°C (15°F) and a much lower average of 8°C (46°F). The maximum temperature is also less extreme at 23°C (74°F). Rainfall decreases to 86 mm (3.4 in) over 9 days, and humidity rises to 82%. The transition from October's warmth to November's chill marks the onset of winter's approach. For more details, check Greenwich weather in November.
October and December weather differ significantly, reflecting the transition from autumn to winter. In October, temperatures range from a mild 3°C (38°F) at night to a warm 32°C (90°F) during the day, with an average of 15°C (60°F). The month is characterized by higher humidity at 74% and more substantial precipitation, totaling 132 mm (5.2 in) over 11 days. In contrast, December experiences much colder temperatures, with a minimum of -12°C (11°F) and a maximum of 17°C (63°F), resulting in an average of just 3°C (38°F). Although precipitation is slightly lower at 111 mm (4.4 in), the humidity increases to 80%, contributing to a chillier atmosphere. For more specific details about December weather, you can refer to Greenwich weather in December.
As October rolls into Greenwich, a noticeable shift in weather patterns emerges compared to the preceding months. The blend of cooler temperatures and increased humidity creates a crispness in the air, perfect for enjoying autumn foliage. While the month can still boast warm days reminiscent of summer, it’s the cooler evenings that signal the arrival of fall. With an average of 11 days of precipitation, October often brings refreshing rain, contributing to the vibrant colors of the season. This transitional month encourages residents and visitors alike to embrace outdoor activities while preparing for the chilly winter ahead. For a deeper look into Greenwich’s climate trends, visit Greenwich Climate.