October Weather in Decorah, United States

Last updated: February 24, 2025

October in Decorah, United States, presents a striking transition in weather, showcasing a maximum temperature reaching 30°C (86°F) while dipping to a minimum of -7°C (20°F). The average temperature settles at a cool 10°C (50°F), setting a backdrop for the cozy autumn atmosphere. With precipitation totaling 133 mm (5.2 in) over 11 days, residents can expect a mix of sunny and rainy spells. The humidity remains relatively high at 79%, contributing to the crisp, refreshing feel of the October air. This month encapsulates the beauty of fall, inviting both locals and visitors to enjoy the vibrant foliage and seasonal charm.

October Temperature in Decorah

As October arrives in Decorah, the crisp air heralds the transition to cooler months, showcasing a fascinating range of temperatures. With minimums dipping to -7°C (20°F), the month can start off brisk, but it quickly warms to a delightful average of 10°C (50°F). The maximums can reach as high as 30°C (86°F), hinting at the lingering warmth of late summer. This blend creates an inviting atmosphere where autumn’s beauty unfolds, with vivid foliage painting the landscape. As the month progresses, the temperatures create a dynamic contrast, allowing both cooler, sweater-clad days and the occasional warm spell, a reminder of summer days not long past. The overall trend showcases a clear shift from the mild comfort of September, leading towards the chill of November, making October a unique and vibrant month in Decorah’s climate calendar.

October Weather in Decorah: Daily Temperature Highs, Lows, and Averages

The chart illustrates October temperature patterns in Decorah, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec192035455971747064493527
Data source: Temperature data for Decorah generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

October Precipitation in Decorah

In October, Decorah experiences a notable uptick in precipitation, receiving 133 mm (5.2 in) of rain over 11 days. This marks a continuation of the trend seen in the preceding months, with September's rainfall at 123 mm paving the way for a wet autumn. The heightened rainfall during October is part of a seasonal shift, as the region transitions from the drier late summer months to a wetter fall. This increase not only supports the vibrant fall foliage but also sets the stage for the upcoming winter months. The data indicates that as the year progresses, precipitation generally intensifies, culminating in a peak during the spring season, while the subsequent months see a notable decline. Overall, October’s precipitation patterns paint a picture of a region rich in moisture, preparing for the changes that winter will bring.

October Precipitation Trends in Decorah

The chart displays monthly precipitation patterns in Decorah, with values for each month alongside October's data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how October's conditions compare to those of other months.
JanFebMarAprMayJunJulAugSepOctNovDec395264801551301061101231335338
Data source: Precipitation data for October generated using information from the Copernicus Climate Change Service.
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October Humidity in Decorah

In October, Decorah experiences a notable shift in humidity levels, averaging around 79%, which is higher than the lower humidity of the summer months, but a drop from the peak readings of late winter and early spring. This trend highlights the transition from the drier summer air, where humidity levels dipped as low as 69% in August, to a more humid atmosphere as autumn deepens. As the year progresses, November brings a significant increase, surging to 88%, indicating that the cold months ahead will envelop the region in moisture-laden air. Overall, October's humidity serves as a reminder of the coming seasonal shift, with cooler temperatures gradually replacing the warmth of summer, setting the stage for the winter months.

October Average Humidity in Decorah

This chart illustrates the average monthly humidity levels in Decorah, with October's data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, allowing you to see how October's humidity levels compare to other months.
JanFebMarAprMayJunJulAugSepOctNovDec84%85%84%83%75%79%75%69%74%79%88%82%
Data source: Humidity data for October generated using information from the Copernicus Climate Change Service.

October UV Index in Decorah

As autumn settles in Decorah, the UV Index for October drops to a moderate 5, allowing residents and visitors to enjoy the crisp fall air with a safer sun exposure time of 30 minutes before the risk of burning increases. Following the intense summer months where UV levels peaked at a high of 10, the gradual decrease from September through October reflects the seasonal transition, highlighting a significant shift in sun intensity. While outdoor activities in October can be delightful, it's important to remain vigilant about sun protection, as even moderate levels can pose a risk with prolonged exposure. For more insights on sun safety, check out the detailed information at Decorah UV Index.

Maximum UV Index Levels in Decorah for October

The chart shows the monthly maximum UV Index (UVI) for Decorah in October, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues.
JanFebMarAprMayJunJulAugSepOctNovDec34589101098532
Data source: Decorah October UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

October Sunshine in Decorah

As October arrives in Decorah, the golden glow of 200 sunshine hours marks a transition from the summer's peak to autumn's embrace. Following a vibrant summer with July basking in a generous 359 hours of sunlight, October's daylight gently recedes, reminiscent of the steady decline seen from September's 261 hours. This month brings a refreshing crispness to the air, while still offering ample sunshine in comparison to the winter months ahead. As daylight dims, the stunning fall foliage bursts into color, creating a picturesque backdrop that invites locals and visitors alike to cherish these bright autumn days before the shorter months of November and December settle in.

Monthly Sunshine Duration in Decorah: October Highlighted

The October sunshine duration represents the total number of hours Decorah experiences direct sunlight during the month of October, excluding cloudy or obstructed periods. This chart compares the sunshine duration of October with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec129h194h231h232h257h332h359h324h261h200h191h180h
Data source: Decorah October Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Decorah During October

In Decorah, United States, October offers a moderate chance of sunshine, with a 42% likelihood of clear skies. This marks a slight decline from the sunny streak of late summer; both August and September boast over 57% chances, showcasing the transition from warmer months. While October’s prospects are not as bright as the preceding months, it maintains a favorable position compared to the colder months of January and February, which see only 25% and 33% sunshine, respectively. As fall settles in, Decorah experiences a balance of sun and clouds, making October a delightful time to enjoy the changing foliage under the sun’s gentle rays.

Percentage of Sunny Days in October in Decorah

The chart illustrates the percentage of sunny days in Decorah throughout the year, with October highlighted. It highlights the variation in sunshine across each month and provides an overview of the typical frequency of sunny days, offering insights into how often Decorah experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec25%33%42%32%35%55%51%57%63%42%41%36%
Data source: Decorah October chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Decorah in October

As October descends upon Decorah, the daylight hours begin to wane, offering a stark reminder of the transition to winter. The month boasts approximately 10 hours of daylight, a notable shift from the vibrant 14 hours seen in May and June. This gradual decrease signals a turning point; the once-lengthy summer days are now giving way to longer nights. Following the trend set in the previous months, October's daylight is slightly less than the 12 hours experienced in September, yet it still retains a warmth that invites residents to savor the changing colors of autumn. As the community prepares for the chill of November, the diminishing daylight becomes an integral part of the seasonal rhythm in Decorah.

Average Daylight Hours in Decorah for October

The chart illustrates the variation in daylight duration in Decorah throughout the year, with October highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 23m10h 31m11h 57m13h 26m14h 41m15h 18m14h 58m13h 51m12h 26m10h 58m9h 41m9h 1m
Data source: Decorah daylight hours, calculated by summing the hours between sunrise and sunset for each day.

October Winds in Decorah

As October ushers in the vibrant colors of fall in Decorah, the wind speeds take a gentle upturn, averaging 3.7 m/s (8 mph). This shift marks a subtle return to breezier days after the relative calm of summer, with July and August recording their lowest averages at 2.9 m/s and 3.0 m/s, respectively. The month encapsulates a dynamic transition, as the wind begins to pick up, hinting at the chillier months ahead. This trend reflects a broader seasonal pattern, where the wind tends to strengthen as the year progresses, reaching its peak in November at 4.5 m/s. So, as the leaves rustle and the air cools, October’s moderate breezes create a delightful setting for autumnal adventures in this picturesque town.

Average October Wind Speed in Decorah

The chart displays monthly wind speed patterns in Decorah, with values for each month shown alongside October's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how October's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec3.43.64.24.13.93.42.93.03.53.7 m/s4.54.2
Data source: Decorah October wind data, generated using information from the Copernicus Climate Change Service.

How October Weather in Decorah Compares to Other Months

The weather in Decorah 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 Decorah and find detailed weather information for every month.

October and January present stark contrasts in weather conditions. In October, temperatures range from a chilly -7°C (20°F) at night to a warm average of 10°C (50°F) during the day, with occasional highs reaching up to 30°C (86°F). This month also sees significant precipitation, averaging 133 mm (5.2 in) over approximately 11 days, accompanied by a humidity level of 79%. On the other hand, January is much colder, with temperatures plummeting to a minimum of -33°C (-28°F) and an average of -7°C (20°F), peaking at just 11°C (51°F). Precipitation decreases notably to 39 mm (1.5 in) over 7 days, with humidity slightly higher at 84%. For more details on January weather, visit Decorah weather in January.

October and February present strikingly different weather patterns. In October, temperatures range from a chilly -7°C (20°F) at night to a warm 30°C (86°F) during the day, averaging around 10°C (50°F). The month experiences considerable rainfall, with 133 mm (5.2 in) of precipitation spread over 11 days and a humidity level of 79%. In contrast, February brings much harsher conditions, with nighttime lows plummeting to -34°C (-28°F) and daytime highs only reaching 18°C (65°F), averaging -7°C (20°F). Precipitation is notably lower, at 52 mm (2.0 in) over just 8 days, while humidity remains high at 85%. For a closer look at February weather, see Decorah weather in February.

October and March present contrasting weather patterns, highlighting the transition between seasons. In October, temperatures can range significantly from a chilly -7°C (20°F) to a warm 30°C (86°F), with an average of 10°C (50°F), resulting in a more mild feel overall. With an average of 133 mm of precipitation over 11 days and a humidity level of 79%, October is generally wetter and more humid. In contrast, March tends to be colder with a minimum temperature of -25°C (-12°F) and a maximum of 21°C (69°F), averaging around 2°C (35°F). The month sees less precipitation at 64 mm over 8 days but maintains a slightly higher humidity of 84%. For a deeper look at March weather patterns, check out Decorah weather in March.

When comparing the weather in October and April, we see notable differences in temperature and precipitation patterns. October boasts a wider temperature range, with nighttime lows reaching down to -7°C (20°F) and daytime highs averaging around 10°C (50°F), occasionally peaking at 30°C (86°F). In contrast, April experiences slightly cooler conditions, with minimum temperatures dipping to -11°C (13°F) and a maximum of 26°C (80°F), resulting in an average of 7°C (45°F). Precipitation is more prominent in October, with 133 mm (5.2 in) over 11 days, compared to April's 80 mm (3.2 in) over 10 days. Additionally, both months show high humidity levels, but October's average of 79% is slightly lower than April's 83%. For more details on April weather, visit Decorah weather in April.

October and May exhibit notable differences in weather patterns. In October, temperatures range from a chilly minimum of -7°C (20°F) to a warm maximum of 30°C (86°F), with an average of 10°C (50°F). This month also sees significant precipitation, with 133 mm (5.2 in) recorded over 11 days and a higher humidity level of 79%. Conversely, May generally offers milder weather, with temperatures fluctuating from a low of -2°C (29°F) to a high of 33°C (92°F), and an average temperature of 15°C (59°F). Precipitation is slightly higher in May at 155 mm (6.1 in) over 15 days, though with a lower humidity of 75%. For a closer look at May's weather specifics, check Decorah weather in May.

October and June present quite contrasting weather patterns despite having similar precipitation levels and humidity. In October, temperatures can drop to a brisk minimum of -7°C (20°F) while averaging around 10°C (50°F) and peaking at a warmer 30°C (86°F). Conversely, June enjoys milder conditions with a minimum of 8°C (48°F), an average of 22°C (71°F), and a maximum reaching 35°C (95°F). Both months experience precipitation on approximately 11 days, but October's cooler temperatures and more variable weather set it apart from the warmer, more stable conditions typical of June. For a more detailed look at June weather, check out Decorah weather in June.

October and July present notably different weather patterns. In October, temperatures range from a chilly minimum of -7°C (20°F) to a pleasant maximum of 30°C (86°F), with an average temperature of 10°C (50°F). This month also sees an increase in precipitation, totaling 133 mm (5.2 in) over about 11 days, accompanied by high humidity levels at 79%. In contrast, July boasts a milder temperature profile, with a minimum of 11°C (53°F), an average of 23°C (74°F), and a maximum of 34°C (93°F). Precipitation in July is slightly lower at 106 mm (4.2 in), occurring over 10 days, and the humidity is a bit lower at 75%. For more specifics on July weather, you can explore Decorah weather in July.

When comparing the weather in October and August, notable differences emerge. October experiences a broader temperature range, with minimums dipping as low as -7°C (20°F) and maximums reaching up to 30°C (86°F), while the average temperature stands at around 10°C (50°F). In contrast, August maintains milder conditions, with a minimum temperature of 10°C (51°F) and maximums peaking at 34°C (94°F), resulting in a warmer average of 21°C (70°F). Precipitation levels are somewhat similar, with October receiving 133 mm (5.2 in) over 11 days, compared to August's 109 mm (4.3 in) over 10 days. Additionally, October's humidity is higher at 79%, while August has a more comfortable 69% humidity. For more detailed insights, check out Decorah weather in August.

October weather presents a noticeable shift compared to September. While September's average temperature is a comfortable 18°C (65°F) with a maximum of 32°C (90°F), October experiences a broader range, with temperatures dipping as low as -7°C (20°F) and averaging around 10°C (50°F). Interestingly, both months have similar precipitation levels, with October receiving 133 mm (5.2 in) over 11 days, just slightly more than September's 123 mm (4.8 in) across 10 days. Additionally, October's humidity is marginally higher at 79%, compared to September's 74%. For a more detailed look at September weather, check out Decorah weather in September.

October and November present a noticeable shift in weather conditions. October boasts a wider temperature range, with minimums around -7°C (20°F) and maximums reaching up to 30°C (86°F), resulting in an average of 10°C (50°F). This month also sees considerable precipitation, totaling 133 mm (5.2 in) over about 11 days, with humidity at 79%. In contrast, November experiences colder temperatures, with a minimum of -16°C (3°F) and a maximum of 22°C (72°F), leading to an average of just 2°C (35°F). The month is significantly drier, receiving only 53 mm (2.1 in) of rain over 7 days, accompanied by a slightly higher humidity level of 88%. For more specific details about weather trends, visit Decorah weather in November.

October and December present contrasting weather conditions. In October, temperatures range significantly, with a minimum of -7°C (20°F), an average of 10°C (50°F), and a maximum reaching 30°C (86°F). This month also witnesses considerable rainfall, with 133 mm (5.2 in) of precipitation over 11 days, contributing to a relatively high humidity level of 79%. In comparison, December experiences much colder conditions, registering a minimum of -23°C (-9°F) and an average of -3°C (28°F), with a maximum of 20°C (68°F). Precipitation drops to 38 mm (1.5 in) over just 6 days, and humidity increases slightly to 82%. For more detailed information, you can visit Decorah weather in December.

Compare Decorah's Climate with Cities Worldwide

Conclusion: What to Expect From October Weather in Decorah

As October rolls into Decorah, the weather takes a noticeable turn, characterized by a significant dip in temperatures that contrasts sharply with the warmer months. With crisp mornings and cool evenings, the average temperature settles around a brisk 10°C, providing a refreshing atmosphere perfect for outdoor activities. The month also brings an increase in precipitation, with nearly half the days experiencing some rain, contributing to the vibrant fall foliage that paints the landscape in rich hues. Humidity levels, too, climb to around 79%, adding to the cool, damp feel of the air. October's blend of cooler temperatures and intermittent rain distinctly highlights the transition to late autumn, setting the stage for winter's approach. For more information on Decorah's climate throughout the year, visit Decorah Climate.