Last updated: February 24, 2025
In October, Saint Helens, United States, experiences a diverse climatic tapestry, with maximum temperatures reaching a warm 26°C (78°F), while the average cools to a crisp 11°C (52°F). The month often begins with a chill, as minimum temperatures can dip to a brisk -2°C (29°F). Rainfall is prevalent, with a total precipitation amount of 149 mm (5.9 in) spread over about 13 days, contributing to the area's lush autumn foliage. The air is saturated with 81% humidity, creating a cozy, albeit damp atmosphere that beautifully encapsulates the season.
In October, Saint Helens, United States, welcomes a notable shift in temperatures as autumn settles in. With minimums dipping to -2°C (29°F), the month marks the transition from the lingering warmth of summer to the crispness of late fall. The average temperature rises to a comfortable 11°C (52°F), providing a pleasant backdrop for outdoor activities amidst the vibrant fall foliage. Although highs can reach up to 26°C (78°F), the temperature pattern indicates a cooling trend compared to the warmer months of September and August. Overall, October encapsulates a delightful balance of warmth during the day and refreshingly cool nights, making it an ideal time to experience the beauty of the changing seasons.
In October, Saint Helens experiences a notable uptick in precipitation, averaging 149 mm (5.9 in) over 13 days of rainfall. This increase marks a transition from the drier summer months, such as July and August, which saw minimal rainfall of just 9 mm (0.3 in) and 11 mm (0.4 in), respectively. As autumn settles in, October's precipitation prepares the landscape for the wetter months ahead, including November and December, which typically see much higher totals of 209 mm (8.2 in) and 224 mm (8.8 in), respectively. This pattern reflects a characteristic trend in the region, where rainfall becomes more frequent and heavier as the year progresses into the fall, setting the stage for the lush, vibrant winters of the Pacific Northwest.
In October, the humidity in Saint Helens reflects a notable shift as it hovers around 81%, finding a balance between the drier summer months and the wetter winter season. This marks a slight increase from the 71% recorded in September, indicating the onset of autumnal moisture. Leading into the colder months, October serves as a transition, as humidity levels begin to rise again, aligning closely with the previous spring and early summer averages. This trend suggests that while October enjoys the crispness of fall, it also foreshadows the return of more humid conditions typical of the Pacific Northwest as the year draws to a close.
As October rolls into Saint Helens, the UV Index dips to a moderate level of 5, offering a hint of reprieve compared to the summer's intense readings. This month, residents can expect a 30-minute burn time, emphasizing the need for sun protection during midday outdoor activities. The trend reveals a gradual decrease in UV exposure from the summer peak of high to very high levels in May through September, which significantly shortened burn times to just 15 minutes. Even in the shoulder months of spring and fall, the UV Index remains an important consideration for outdoor enthusiasts. For more detailed information on UV trends throughout the year, check out Saint Helens UV Index.
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As autumn sets in, October in Saint Helens embraces a delightful shift in the weather, offering residents and visitors a comfortable 211 hours of sunshine. This month stands out as a continuation of the vibrant sunshine seen through the summer, following the peak of 374 hours in July. While October experiences a gradual decrease from the sun-drenched summer months, it still significantly outshines the winter ahead, with November and December featuring only 136 and 115 hours of sunlight, respectively. Nature rewards October's mild days with a golden palette, making it a picturesque time to explore the city's rich fall foliage and enjoy the crisp air before winter's arrival.
In Saint Helens, United States, October offers a modest 28% chance of sunny weather, marking a notable decline from the vibrant summer months where July peaks at 73%. As the seasons transition, the likelihood of sunshine dips significantly from the heights of summer, aligning more closely with the gray skies of late autumn, where November and December plummet to just 14% and 12%, respectively. However, October still holds onto some brightness compared to early winter, particularly when compared to its early-year counterparts like January and February, which languish at a mere 15%. This seasonal trend highlights October as a period of change, where the tail end of autumn can still bring occasional sunny days amidst the frequently overcast sky.
As autumn settles in Saint Helens, October brings a noticeable shift in daylight duration, with the hours of sunlight dwindling to 10 hours a day. This decline follows a summer peak of 15 hours in June and July, where long, vibrant days encouraged outdoor activities and exploration. As we transition from September’s 12 hours of daylight, October serves as a poignant reminder of the shortening days ahead leading into winter. This gradual decrease from long summer evenings to the brisk fall months reflects the changing seasons, inviting residents to embrace the rich hues of autumn while preparing for the quieter, darker days of November and December.
As October arrives in Saint Helens, the wind takes on a refreshing character, averaging a brisk 2.6 m/s (6 mph)—slightly stronger than the preceding months. This uptick in wind speed marks a transition towards the more blustery conditions of late fall and hints at the changing seasons. Interestingly, October's wind is one of the highest average speeds recorded since July, which suggests a gentle but noticeable shift as the year begins to wind down. With breezy days welcoming the vivid hues of autumn, October provides an invigorating backdrop for outdoor activities and scenic strolls under the crisp, colorful canopy. As the year draws to a close, the winds remind us of nature's dynamic tapestry, bringing both anticipation and a sense of renewal.
The weather in Saint Helens 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 Saint Helens and find detailed weather information for every month.
October and January present contrasting weather patterns in Saint Helens. October features a milder temperature range with minimums around -2°C (29°F) and maximums reaching up to 26°C (78°F), averaging at a comfortable 11°C (52°F). In comparison, January experiences much colder temperatures, with minimums plummeting to -14°C (7°F) and an average of only 5°C (41°F), peaking at 14°C (58°F). Precipitation is more frequent in January, with 205 mm (8.1 in) over 17 days, compared to October's 149 mm (5.9 in) spread across 13 days. Both months have high humidity levels, but January edges slightly higher at 85%, compared to October's 81%. For more detailed weather information, check out Saint Helens weather in January.
When comparing the weather in October and February, October tends to be milder with average temperatures hovering around 11°C (52°F) and daytime highs reaching up to 26°C (78°F). In contrast, February is generally colder, featuring an average temperature of 4°C (40°F) and maximum temperatures of 17°C (62°F). Precipitation levels are notably higher in February, with 205 mm (8.1 in) spread over 20 days, compared to October's 149 mm (5.9 in) over 13 days. Additionally, February has a slightly higher humidity level at 84% compared to October's 81%. For detailed weather insights, you can visit Saint Helens weather in February.
When comparing the weather in October and March, we see some notable differences. October typically has a slightly warmer average temperature of 11°C (52°F) with maximum highs reaching up to 26°C (78°F), while March's average sits lower at 7°C (45°F) and peaks at 22°C (73°F). Additionally, October experiences 149 mm (5.9 in) of precipitation over 13 days, whereas March is wetter with 163 mm (6.4 in) falling over 18 days. Humidity levels are quite similar, with October averaging 81% and March a bit higher at 85%. For more detailed weather information, you can visit Saint Helens weather in March.
Comparing weather in October and April reveals some interesting similarities and differences. In October, temperatures range from a chilly minimum of -2°C (29°F) to a comfortable maximum of 26°C (78°F), with an average of 11°C (52°F). In contrast, April shows slightly milder temperatures, with a minimum of -1°C (30°F) and a maximum of 29°C (85°F), averaging around 10°C (51°F). Precipitation levels are quite similar, with October receiving 149 mm (5.9 in) over 13 days, while April sees 140 mm (5.5 in) spread across 16 days. Humidity levels are also comparable, hovering around 81% in October and 83% in April, contributing to the overall damp feel typical of spring and autumn. For more detailed information, you can check Saint Helens weather in April.
When comparing the weather in October and May, notable differences emerge. October features a wider temperature range, with minimums down to -2°C (29°F) and maximums reaching up to 26°C (78°F), resulting in an average of 11°C (52°F). In contrast, May tends to be milder, with temperatures ranging from a minimum of 3°C (37°F) to a maximum of 32°C (90°F) and an average of 14°C (57°F). Additionally, October sees higher precipitation levels at 149 mm (5.9 in) over 13 days, compared to May’s 73 mm (2.9 in) over 11 days. Humidity levels are relatively similar, with October at 81% and May slightly higher at 83%. For a specific look at May weather, you can explore Saint Helens weather in May.
When comparing the weather in October and June, notable differences emerge. October experiences a wider temperature range, with minimums dropping to -2°C (29°F) and maximums reaching 26°C (78°F). In contrast, June offers milder temperatures, with a minimum of 6°C (43°F) and a high that can soar up to 45°C (113°F), although extreme highs are less common. Precipitation is more prevalent in October, accumulating 149 mm (5.9 in) over 13 days, while June is relatively drier with only 62 mm (2.5 in) on 9 days. Humidity levels remain similar between the two months, hovering around 81% in October and 83% in June. For a deeper look at the typical weather conditions in June, check out Saint Helens weather in June.
October and July present distinct weather characteristics in the region. In October, temperatures range from a chilly -2°C (29°F) at night to a pleasant 26°C (78°F) during the day, with an average of 11°C (52°F). In contrast, July offers much warmer conditions, with nighttime lows of 8°C (46°F) and daytime highs reaching up to 37°C (99°F), averaging around 20°C (68°F). Precipitation is another notable difference; October sees significantly more rain with 149 mm (5.9 in) over approximately 13 days, while July is quite dry, experiencing only 9 mm (0.3 in) over just 2 days. Humidity levels remain similar, hovering around 81% in October and 82% in July. For more specific details on July weather, you can check Saint Helens weather in July.
In comparing the weather of October and August, October presents a much cooler climate with average temperatures ranging from a minimum of -2°C (29°F) to a maximum of 26°C (78°F), while August enjoys warmer averages with temperatures from 8°C (47°F) to a high of 39°C (102°F). Additionally, October is significantly wetter, experiencing 149 mm (5.9 in) of precipitation over 13 days, compared to August’s meager 11 mm (0.4 in) over just 2 days. The humidity in October is also higher at 81%, compared to 74% in August, adding to the distinctly different atmospheres of these two months. For more detailed insights on August weather, check out Saint Helens weather in August.
October weather presents a notable shift compared to September, with lower average temperatures and increased precipitation. While September boasts a more comfortable average temperature of 17°C (63°F) and maximum highs reaching up to 35°C (95°F), October's average dips to 11°C (52°F), with minimums dropping as low as -2°C (29°F). Additionally, October sees increased rainfall, totaling 149 mm (5.9 in) over 13 days, compared to September's 90 mm (3.6 in) over just 9 days. The humidity also rises in October to 81%, compared to September's 71%, contributing to a distinctly cooler and wetter climate. For further details on September conditions, you can check out Saint Helens weather in September.
October and November present distinct differences in weather conditions. In October, temperatures range from a minimum of -2°C (29°F) to a maximum of 26°C (78°F), with an average of 11°C (52°F). The month experiences about 149 mm (5.9 in) of precipitation over 13 days, and humidity levels sit at 81%. In contrast, November sees a drop in average temperatures to 7°C (46°F), with minimums reaching -3°C (27°F) and maximums only up to 18°C (64°F). This month is wetter, accumulating 209 mm (8.2 in) of rain across 18 days and an increase in humidity to 87%. For more detailed information, you can check out Saint Helens weather in November.
In comparing October and December weather, we see a notable shift in temperatures and precipitation. October boasts a more mild range, with average temperatures around 11°C (52°F) and a maximum of 26°C (78°F), making it feel more like early fall. In contrast, December experiences colder temperatures, with averages dropping to just 5°C (41°F) and a maximum of 15°C (59°F), signaling the onset of winter.
Precipitation also increases from October to December, with October receiving 149 mm (5.9 in) over 13 days, while December sees a significant rise to 224 mm (8.8 in) across 20 days. Moreover, humidity levels are higher in December at 87%, compared to October's 81%. This shift underscores the transition from the cooler, drier fall to the wetter and colder winter months. For more detailed insights into December weather, you can visit Saint Helens weather in December.
As October unfolds in Saint Helens, a noticeable shift occurs in the weather, blending the remnants of summer warmth with the briskness of the impending winter. While daytime temperatures may still reach pleasant highs, the nights can dip significantly, reminding residents that colder months are on the horizon. Frequent rains contribute to the fall atmosphere, with about half the month experiencing precipitation, making it essential to embrace the cozy indoors or prepare for wet outings. The elevated humidity adds to the overall chill, making October a month of stark contrasts compared to the warmer, drier spells of earlier months. For a detailed look into the climatic patterns throughout the year, check out Saint Helens Climate.