Last updated: February 24, 2025
October in Eureka, United States, showcases a delightful transition into autumn, with maximum temperatures reaching 22°C (72°F) and an average of 13°C (55°F). As the month progresses, minimum temperatures dip to a brisk 8°C (46°F), inviting cozy layers. Rainfall is moderate, with a total of 53 mm (2.1 in) spread over just 5 days, contributing to the region's vibrant fall foliage. The humidity level hovers around 72%, adding a refreshing crispness to the air, making October a picturesque month for both locals and visitors to experience the charm of Eureka.
As October rolls in Eureka, United States, the air begins to cool, signaling the transition from the warmth of summer to the briskness of fall. With minimum temperatures hovering around 8°C (46°F), residents experience a gentle decline from the previous month’s milder climate. The average temperature of 13°C (55°F) creates a pleasant atmosphere for outdoor activities, while daytime highs reach up to 22°C (72°F), offering just enough warmth for those wishing to savor the autumn scenery. This month showcases a notable shift from September's warmth, as the maximum temperatures drop significantly from 29°C (84°F) to a more moderate 22°C (72°F). Overall, October in Eureka ushers in crisp air and vibrant fall colors, inviting everyone to embrace the beauty of the season.
In Eureka, United States, October brings a notable increase in precipitation, contributing 53 mm (2.1 in) over five days of rainfall. This spike marks a significant rise from the dry summer months, where July and August recorded only 7 mm each. As autumn sets in, precipitation in October is a precursor to the wetter conditions that arrive in November, which averages 117 mm (4.6 in) over ten days. Interestingly, while both January and February see higher annual totals, October serves as a transition point, bridging the lingering warmth of late summer with the approaching winter rains. This trend underscores Eureka's coastal climate, where moisture begins to accumulate as the foliage transitions, setting the stage for a vibrant fall landscape.
In October, Eureka experiences a notable shift in humidity levels, with an average of 72%. This marks a gentle rise from the drier summer months, where humidity dipped to a comfortable 60% in August and 70% in July. As the region transitions into fall, the humidity begins to build again, echoing the wetter conditions typical of the later months. October's humidity is a precursor to the more humid sensations of November and December, which see levels soar back to around 87% and 86%, respectively. This seasonal ebb and flow underscore Eureka's maritime climate, offering a refreshing contrast as the crisp autumn air settles in.
As October rolls into Eureka, residents can expect a moderate UV Index of 6, categorized as high exposure. This marks a slight decrease from the very high levels seen in the summer months, making burn time extend to around 25 minutes. It's a reminder that even as temperatures cool, UV rays remain a concern, especially for those enjoying outdoor activities. The trend shows a gradual decline from the peak index of 11 in June, yet it emphasizes the importance of sun protection. For more detailed insights, check out Eureka UV Index.
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October in Eureka, United States, offers a beautiful transition into fall with 268 hours of sunshine, marking a notable decline from the sun-soaked summer months, particularly July’s peak of 394 hours. As the days grow shorter and the air crisper, the sunshine in October still provides a respectable amount of warmth, ushering in vibrant autumn colors. This month reflects a downward trend from the summer's brilliance but remains significantly sunnier than the winter months that follow, exemplifying Eureka's rich diversity in seasonal light. With each passing October, locals cherish the last golden rays before the cozy embrace of winter takes hold.
In Eureka, United States, October offers a 42% chance of sunny weather, marking a noticeable dip from the brighter days of late summer, where August and September boast probabilities of 60% and 62% respectively. This trend underscores a transition into fall, as the city experiences increasingly cloudy weather leading into November, which sees a drop to 31%. Despite the decrease, October still holds its own, promising a fair share of sun-filled days amid the picturesque autumn foliage. Overall, while sunshine isn’t guaranteed, October in Eureka still offers a favorable opportunity for enjoying those crisp, clear days before winter settles in.
As autumn sets in, October in Eureka offers a notable shift in daylight, averaging 11 hours of sunlight. This marks a gradual decrease from the summer peak of 15 hours in June, as the days shorten leading into winter. Following the vibrant 14 hours of daylight in May and June, October reflects a harmonious blend of lingering warmth and the crispness of fall, hinting at the impending transition to cozy indoor days. As daylight wanes through the months, Eureka experiences a rhythmic ebb and flow, illustrating the natural cycle of the seasons that residents and visitors alike can appreciate.
As October unfolds in Eureka, the average wind speed dances at 4.4 m/s (10 mph), reflecting a seasonal transition that balances softer breezes with invigorating gusts. This month marks a slight uptick from the stillness of September, where winds dwindled to 3.2 m/s (7 mph), hinting at nature's gentle awakening as fall deepens. Compared to earlier months, October's winds strike a harmonious middle ground, comfortably above the summer lull seen in June and July, which barely nudged 3.7 m/s (8 mph). With the promise of crisp autumn air, October invites both locals and visitors to bask in the refreshing embrace of the breezes that herald the impending winter chill.
The weather in Eureka 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 Eureka and find detailed weather information for every month.
October and January present distinct contrasts in weather patterns. October typically enjoys milder temperatures, ranging from a minimum of 8°C (46°F) to a comfortable maximum of 22°C (72°F), with an average temperature of 13°C (55°F). Precipitation is relatively low at 53 mm (2.1 in) over about five days, and humidity sits at 72%. In contrast, January brings cooler temperatures, with a minimum of 4°C (39°F), an average of 10°C (50°F), and a maximum of 17°C (63°F). The month is also significantly wetter, experiencing 211 mm (8.3 in) of rainfall over fifteen days, accompanied by higher humidity at 86%. For a more detailed look at January conditions, you can refer to Eureka weather in January.
October and February offer contrasting weather conditions. In October, temperatures range from a minimum of 8°C (46°F) to a maximum of 22°C (72°F), with an average of 13°C (55°F). This month typically sees about 53 mm (2.1 in) of precipitation spread over just 5 rainy days, accompanied by a humidity level of 72%. In comparison, February experiences cooler temperatures, with a minimum of 3°C (37°F), an average of 9°C (48°F), and a maximum of 19°C (66°F). However, February is much wetter, receiving approximately 200 mm (7.9 in) of rain over 14 days and higher humidity at 85%. For a more detailed look at February weather, check out this link: Eureka weather in February.
When comparing the weather in October and March, October generally presents milder temperatures, with a minimum of 8°C (46°F) and a maximum of 22°C (72°F), averaging at around 13°C (55°F). In contrast, March tends to be cooler, with temperatures ranging from a minimum of 3°C (38°F) to a maximum of 17°C (63°F), averaging 9°C (49°F). Precipitation also differs significantly; October receives about 53 mm (2.1 in) over just 5 days, while March sees much higher rainfall at 164 mm (6.5 in), spread over 15 days. Additionally, March has a higher humidity level at 85%, compared to October's 72%. For more detailed information, you can refer to Eureka weather in March.
In comparing the weather between October and April, we see distinct differences in temperature and precipitation. October typically enjoys milder temperatures, with an average of 13°C (55°F) and maximums reaching up to 22°C (72°F), while April's average temperature is cooler at 10°C (51°F), peaking at 18°C (65°F). Precipitation is notably heavier in April, with 101 mm (4.0 in) falling over 10 days, compared to October's 53 mm (2.1 in) across just 5 days. Additionally, April tends to have higher humidity levels, averaging 82% compared to October's 72%. For a closer look at local weather patterns, check out Eureka weather in April.
When comparing the weather in October and May, we can see some notable differences. October typically offers a wider temperature range, with minimums around 8°C (46°F) and maximums reaching up to 22°C (72°F), resulting in a comfortable average of 13°C (55°F). In contrast, May experiences slightly cooler temperatures, with a range from 6°C (43°F) to a maximum of 17°C (63°F), resulting in an average of 11°C (52°F).
Additionally, both months see similar levels of precipitation, with October receiving about 53 mm (2.1 inches) over approximately 5 days compared to May's 60 mm (2.4 inches) over 6 days. However, May has a higher humidity level at 81%, while October's humidity is somewhat lower at 72%. For a deeper look at the weather specifics for May, check out Eureka weather in May.
In comparing October and June weather, we see some interesting similarities and differences. Both months have a similar average temperature of around 13°C (55°F), but June tends to feature slightly higher maximum temperatures, peaking at 23°C (74°F) compared to October's 22°C (72°F). Precipitation levels are notably different, with October receiving 53 mm (2.1 inches) of rain over about five days, while June is much drier with only 23 mm (0.9 inches) falling over four days. Additionally, October has a humidity level of 72%, whereas June is a bit more humid at 79%. For those interested in a more detailed look at June weather in Eureka, you can explore this link: Eureka weather in June.
In comparing the weather between October and July, we can see distinct differences in temperature and precipitation. October experiences a broader range of temperatures with a minimum of 8°C (46°F), an average of 13°C (55°F), and a maximum of 22°C (72°F). This month also sees more precipitation, with 53 mm (2.1 in) over 5 days, contributing to a higher humidity level of 72%. In contrast, July's temperatures are slightly higher, with a minimum of 9°C (49°F), an average of 13°C (56°F), and a maximum of only 19°C (66°F). Notably, July experiences significantly less precipitation at just 7 mm (0.3 in) over 1 day, accompanied by a humidity level of 70%. For a closer look at the specific weather conditions in July, check out Eureka weather in July.
In comparing the weather between October and August, October tends to be cooler, with a minimum temperature of 8°C (46°F) compared to August's 10°C (51°F). The average temperatures are also slightly lower in October at 13°C (55°F), opposed to August's 14°C (58°F). Rainfall is more frequent in October, with 53 mm (2.1 in) of precipitation over an average of 5 days, while August enjoys a dry spell with only 7 mm (0.3 in) of precipitation over 0 days. Additionally, October has higher humidity at 72%, as opposed to August's 60%, making October feel a bit more damp and cool. For more detailed insights, you can visit Eureka weather in August.
October generally experiences cooler temperatures compared to September, with a minimum of 8°C (46°F) and a maximum of 22°C (72°F), while September boasts a higher minimum of 10°C (50°F) and a maximum of 29°C (84°F). The average temperature in October is around 13°C (55°F), which is slightly lower than September's average of 15°C (59°F). Additionally, October sees more precipitation, totaling 53 mm (2.1 in) over 5 days, compared to just 27 mm (1.0 in) over 3 days in September. The humidity also rises in October, reaching 72%, compared to 62% in September. For more information, check out Eureka weather in September.
In comparing the weather of October and November, we notice a significant drop in temperatures as autumn progresses. October features a minimum temperature of 8°C (46°F) and averages around 13°C (55°F), with maximums reaching up to 22°C (72°F). In contrast, November sees cooler conditions, with a minimum of 4°C (40°F) and an average of 11°C (52°F), peaking at 19°C (66°F). Additionally, November experiences a notable increase in precipitation, totaling 117 mm (4.6 in) over 10 days, compared to October's 53 mm (2.1 in) across just 5 days. The humidity also rises in November, reaching 87% compared to October's 72%. For more detailed information, check out Eureka weather in November.
In October, the weather tends to be milder, with average temperatures ranging from a minimum of 8°C (46°F) to a maximum of 22°C (72°F) and relatively low precipitation of 53 mm (2.1 in) over about five days. However, as December arrives, the temperatures drop further, averaging between 4°C (39°F) and 17°C (63°F), while precipitation increases significantly to 161 mm (6.3 in) spread across 13 days, resulting in higher humidity levels at 86%. This transition highlights a notable shift from the more temperate conditions of October to the cooler, wetter climate characteristic of December. For more details on December weather in Eureka, you can check Eureka weather in December.
As October arrives in Eureka, the weather presents a delightful transition from the warm summer months to the cooler embrace of autumn. With an average temperature settling at a refreshing 13°C (55°F), the month features pleasantly mild days, inviting residents and visitors to enjoy outdoor activities. Although occasional rain showers bring a total of 53 mm (2.1 in) across just five days, the crisp air paired with a moderate humidity of 72% enhances the invigorating fall atmosphere. This marked shift from the warmer months not only refreshes the landscape but also showcases Eureka's unique charm as it prepares for the winter ahead. For more details, explore the comprehensive data on Eureka Climate.