Last updated: February 24, 2025
Discover the unique charm of October in Ketchikan, United States, where temperatures fluctuate between a maximum of 14°C (57°F) and a minimum of 3°C (38°F). The average temperature settles at a crisp 8°C (47°F), signaling the transition into fall. With a whopping 331 mm (13.0 in) of precipitation over 20 rainy days, the air is lush and invigorating, enveloped in a high humidity of 91%. This month showcases Ketchikan’s captivating scenery, enhanced by the misty allure of autumn, making it a memorable time for adventurers and nature enthusiasts alike.
In October, Ketchikan experiences a shift as temperatures cool from the mild warmth of summer. The minimum temperature rests at around 3°C (38°F), just above freezing, while the average settles at a crisp 8°C (47°F), and the maximum reaches a comfortable 14°C (57°F). This transition marks the subtle onset of winter, with temperatures dropping from the more temperate days of September. As autumn progresses, the landscape transforms, embracing the chill as locals and visitors alike prepare for the seasonal changes ahead. The month showcases a gentle decline in warmth, setting the stage for Ketchikan's beautiful fall scenery.
October in Ketchikan brings a significant uptick in precipitation, with an average of 331 mm (13.0 in) recorded over 20 rainy days. This marks not only one of the wettest months of the year but also a continuation of the trend established in the preceding months, where rainfall has been consistently high, particularly in September with 302 mm. The increase from September to October highlights the region's transition into its wetter season, leading into even rainier months ahead, such as November with 410 mm. This uptick contributes to Ketchikan's reputation as one of the wettest places in the United States, creating a lush and vibrant landscape that characterizes this picturesque coastal city.
As October rolls into Ketchikan, the air remains richly saturated with humidity, measuring at a notable 91%. This level is part of a compelling trend that sees humidity peak during the summer months, particularly in July and August, with striking figures of 90% and 92% respectively. As the seasons shift, September maintains this moist atmosphere at 92%, before October’s slight dip. While October reflects a decrease from the summer highs, it still holds onto significant moisture, foreshadowing the cooler, wetter months ahead. The consistent high humidity throughout the year, particularly in the autumn, underscores Ketchikan’s distinct marine climate, where lush greenery thrives against a backdrop of misty skies.
As autumn settles in Ketchikan, October brings a moderate UV Index of 3, indicating a shift from the summer peak. This month, residents and visitors can enjoy outdoor activities but should still be mindful of sun exposure, with a burn time of approximately 30 minutes under direct sunlight. The UV Index has steadily declined from its height in July, where it reached a striking level of 8, signaling very high exposure risk. With the decreasing UV levels from late summer into autumn, it's a reminder for everyone to adapt their sun safety practices accordingly. For more detailed information, check the Ketchikan UV Index.
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As October unfolds in Ketchikan, United States, the days grow shorter, offering a brief departure from the vibrant summer sunlight. With 132 hours of sunshine, October marks a noticeable decline from the sun-soaked peak of July, which basks in 248 hours. However, this month still enjoys more sunny moments compared to the winter months ahead, with November and December plunging down to 70 and 63 hours respectively. The transition into fall is evident as the sun retreats; yet, the glimmers of light in October serve as a reminder of the lingering beauty of the season, setting the stage for the quieter, cozier months to come.
In Ketchikan, October brings a modest 22% chance of sunny weather, positioning it among the months with lower probabilities of sunshine. While spring typically ushers in a rise in brightness, with April reaching 41%, the summer months maintain a steady yet subdued level of sunshine, peaking at 31% in August. As autumn sets in, the likelihood of clear skies dramatically drops, exemplified by the 10% chance in September. October’s figures show a slight recovery in sun exposure compared to the previous month, yet they remain overshadowed by the sunnier spells of early spring and winter's unexpected shine, seen with 38% in December. Overall, Ketchikan's October weather leans more toward overcast skies than sunny days, aligning with its characteristic coastal climate.
In Ketchikan, the rhythm of daylight ebbs and flows dramatically throughout the year, reflecting the changing seasons. October marks a noticeable shift, as daylight hours dwindle to 10 hours, down from the leisurely 12 hours of September. This reduction in light signals the transition towards the long, dark days of winter. Following the vibrant, sun-filled months of summer, which peak at 17 hours in June, the gradual decrease in daylight becomes more pronounced, as the days shorten to 8 hours by November. Consequently, October is a month of preparation, where the bright hues of autumn leaves contrast against the softening light, inviting Ketchikan's residents to cherish their fleeting outdoor moments before winter's embrace.
As October sweeps into Ketchikan, the coastal winds begin to pick up, boasting an average speed of 6.8 m/s (15 mph). This marks a noticeable increase from the summer months, where weather was relatively calm, with July recording its lowest average of just 3.7 m/s (8 mph). Following a mild September, the brisk winds of October signal a transition towards the colder months, setting the stage for a steady climb in wind speeds that will peak in November at 7.3 m/s (16 mph). This incremental rise from the gentle breezes of late spring through to the early autumn months highlights the dynamic interplay of weather patterns in this vibrant seaside town, offering both a refreshing chill and a hint of the approaching winter.
The weather in Ketchikan 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 Ketchikan and find detailed weather information for every month.
When comparing the weather in October and January, it's evident that October tends to be milder, with average temperatures ranging from a minimum of 3°C (38°F) to a maximum of 14°C (57°F), while January experiences much colder conditions, including minimum temperatures plummeting to -10°C (15°F). Although October has slightly higher precipitation at 331 mm (13.0 in) over 20 days, January closely follows with 306 mm (12.1 in) over 18 days, indicating that both months are quite wet. Furthermore, humidity is notably higher in October at 91%, compared to January's 86%, contributing to the distinct feel of each month. For more specific details on January weather, you can visit Ketchikan weather in January.
October and February present contrasting weather conditions. In October, temperatures range from a minimum of 3°C (38°F) to a maximum of 14°C (57°F), with an average of 8°C (47°F). The month is characterized by significant rainfall, totaling 331 mm (13.0 in) over approximately 20 wet days and maintaining high humidity levels at 91%. In contrast, February is much colder, with temperatures dropping to a minimum of -10°C (15°F) and reaching a maximum of 8°C (47°F), resulting in an average temperature of just 2°C (36°F). The precipitation is also lower in February, at 168 mm (6.6 in) over 14 days, and the humidity is slightly less at 85%. For more detailed information, you can check out Ketchikan weather in February.
When comparing the weather in October and March, one can notice some distinct differences and similarities. October experiences slightly milder temperatures with an average of 8°C (47°F), while March has a lower average of 4°C (39°F). Both months reach a maximum temperature of 14°C (57°F); however, March starts much colder, with a minimum temperature of -4°C (25°F) compared to October's 3°C (38°F). In terms of precipitation, October is significantly wetter, with 331 mm (13.0 in) falling over 20 days, compared to March's 221 mm (8.7 in) over 19 days. Humidity levels are high in both months, but October is slightly more humid at 91%, compared to March's 84%. For more detailed insights on March weather specifically, you can visit Ketchikan weather in March.
When comparing the weather in October and April, we see some notable differences. In October, temperatures range from a chilly minimum of 3°C (38°F) to a maximum of 14°C (57°F), with an average of 8°C (47°F). The month is characterized by significant rainfall, totaling 331 mm (13.0 in) across 20 days, and high humidity levels of 91%. In contrast, April's temperature range is slightly lower, with a minimum of 0°C (32°F) and an average of 6°C (43°F) but still reaching a maximum of 14°C (57°F). April sees less precipitation at 218 mm (8.6 in) over 16 days, alongside a slightly lower humidity of 85%. For more detailed information, visit Ketchikan weather in April.
October and May exhibit notable differences in weather patterns. October tends to be colder, with average temperatures ranging from 3°C (38°F) to 14°C (57°F), while May offers slightly warmer conditions, with temperatures from 4°C (40°F) to 18°C (65°F). Additionally, October experiences significantly higher precipitation, totaling 331 mm (13.0 in) over 20 days, whereas May sees only 141 mm (5.6 in) across 15 days. Humidity also peaks in October at 91%, compared to 81% in May, contributing to a more damp atmosphere during the fall. For more detailed information, you can check Ketchikan weather in May.
In Ketchikan, the contrast between October and June weather is quite striking. October features cooler temperatures with a minimum of 3°C (38°F) and an average of 8°C (47°F), while June enjoys milder conditions, starting at 7°C (44°F) and averaging 11°C (53°F). Precipitation is significantly higher in October, with 331 mm (13.0 in) over 20 days, compared to June's 216 mm (8.5 in) across 18 days. Additionally, humidity is more pronounced in October at 91%, whereas June experiences a relatively lower humidity level of 81%. For more information, you can check Ketchikan weather in June.
In contrast to the warm and moderately humid atmosphere of July, October presents a cooler and much wetter environment. July typically boasts temperatures ranging from a minimum of 10°C (50°F) to a maximum of 22°C (71°F), with an average of 14°C (57°F). In comparison, October features much lower temperatures, with a minimum of 3°C (38°F) and a maximum of 14°C (57°F), averaging at 8°C (47°F). Additionally, October experiences significantly higher precipitation, averaging 331 mm (13.0 in) over 20 wet days, compared to July's 162 mm (6.4 in) across 14 days. This difference in weather patterns highlights October's more inhospitable conditions, despite only a slight increase in humidity from July's 90% to October's 91%. For more insights on July's weather, check out Ketchikan weather in July.
When comparing the weather in October and August, October tends to be much cooler, with average temperatures ranging from a chilly 3°C (38°F) to a maximum of 14°C (57°F). In contrast, August offers milder conditions, with temperatures hovering between 10°C (50°F) and 22°C (72°F). Precipitation levels are relatively high in both months, with October experiencing slightly more rain at 331 mm (13.0 in) and 20 rainy days, compared to August's 302 mm (11.9 in) and 17 rainy days. Humidity levels remain high in both months, with October at 91% and August at 92%. For more specific details about the weather in August, you can check out Ketchikan weather in August.
In comparing the weather of October and September, October presents a notable drop in temperatures, with average highs of 14°C (57°F) compared to September's 19°C (67°F). The minimum temperature in October is considerably lower at 3°C (38°F), down from September's 8°C (46°F). Additionally, October experiences more precipitation, totaling 331 mm (13.0 in) over 20 days, while September sees 302 mm (11.9 in) over 17 days. Humidity remains relatively consistent, with October at 91% and September at 92%. For more details on September weather, check out Ketchikan weather in September.
October weather tends to be slightly warmer than November, with average temperatures ranging from a minimum of 3°C (38°F) to a maximum of 14°C (57°F), while November experiences lower temperatures, with a minimum of 0°C (32°F) and a maximum of 11°C (51°F). October also has more pleasant conditions overall, averaging 8°C (47°F) compared to November's 6°C (43°F). However, November sees an increase in precipitation, measuring 410 mm (16.1 in) over 23 days, compared to October's 331 mm (13.0 in) across 20 days. Despite the slight decrease in humidity from 91% in October to 87% in November, the colder temperatures make November feel significantly chillier. For more details, you can check Ketchikan weather in November.
In Ketchikan, October presents a milder climate with temperatures ranging from a chilly minimum of 3°C (38°F) to a comfortable maximum of 14°C (57°F), and significant rainfall totaling 331 mm (13.0 in) over about 20 days. The high humidity level of 91% adds to the dampness, typical of fall weather. In contrast, December brings colder temperatures, with a minimum reaching -10°C (15°F) and an average of just 3°C (38°F), while the maximum only edges up to 9°C (49°F). Although December experiences a bit more precipitation at 345 mm (13.6 in) over 21 days, the humidity drops slightly to 87%, indicating a more stable but frigid winter climate. For more details on December’s conditions, you can check Ketchikan weather in December.
As October rolls into Ketchikan, the weather takes on a noticeably cooler and wetter character compared to the preceding months. The average temperatures dip, making the crisp air a hallmark of fall, while the high humidity adds a unique touch to the atmosphere, often blanketing the area in misty charm. With frequent rainfall and an increased number of precipitation days, October stands out for its dramatic weather transitions. This is a time when lush landscapes are adorned with vibrant autumn colors, creating a picturesque backdrop for both locals and visitors alike. Embrace the wonders of Ketchikan's October weather in depth by exploring more at Ketchikan Climate.