Last updated: February 24, 2025
In January, Decorah, United States, experiences a stark winter landscape, with average temperatures around -7°C (20°F), while peaking at a maximum of 11°C (51°F). The month can be frigid, as temperatures occasionally plummet to a chilling minimum of -33°C (-28°F). Amidst this cold, 39 mm (1.5 in) of precipitation is recorded over seven days, contributing to the wintery charm of the region. With an elevated humidity level of 84%, January in Decorah is a month where the biting cold is often accompanied by a blanket of frost, making it a notably crisp winter experience.
January in Decorah, United States, presents a starkly cold landscape, with temperatures dipping as low as -33°C (-28°F). The average temperature hovers around a brisk -7°C (20°F), while highs manage to reach a modest 11°C (51°F). This month reflects a broader winter trend, where the chill lingers as late as February, often characterized by similarly low minimums. However, as March approaches, a gradual warming begins—temperatures shift from biting cold to more moderate warmth, with an average of 2°C (35°F). This transition signals the eventual embrace of spring, highlighting the dramatic temperature fluctuations that define Decorah's winter and early spring seasons. Despite the frigid start, each month paves the way for warmer days ahead, creating a dynamic climate rhythm that captivates residents and visitors alike.
In January, Decorah experiences a relatively mild start to the year, receiving 39 mm (1.5 in) of precipitation over an average of 7 days. This sets the stage for progressive increases in rainfall as winter transitions into spring. The precipitation pattern noticeably climbs in February and March, rising to 52 mm (2.0 in) and 64 mm (2.5 in) respectively, paralleling the gradual warming of temperatures. The trend continues upward through the spring months, with April seeing a leap to 80 mm (3.2 in), and May a substantial 155 mm (6.1 in), marking the peak of spring moisture. As summer approaches, precipitation slowly begins to stabilize, hovering around 130 mm in June before tapering slightly in July and August. This cyclical pattern reveals a steadily increasing trend in rainfall leading up to summer, providing essential hydration for the verdant landscapes of Decorah.
In January, Decorah experiences a high humidity level of 84%, setting the tone for a month that is characteristic of damp winter days. This figure is closely mirrored in March, suggesting a steady atmospheric moisture that lingers through the cold months. Notably, February sees a slight uptick to 85%, while April dips slightly to 83%, indicating a gradual shift as spring approaches. As the year unfolds, humidity levels generally decline, reaching their lowest in the summer months of July and August at 75% and 69%, respectively. The trend then reverses as autumn arrives, with humidity rising again, peaking dramatically to 88% in November. This cyclical pattern underscores the seasonal ebb and flow of moisture in Decorah, illustrating a vibrant interplay between winter’s chill and summer’s respite.
In January, Decorah experiences a moderate UV Index of 3, indicating that while sun exposure is safe, it's still wise to take precautions if you plan to be outside for more than 30 minutes. As winter transitions into spring, the UV Index gradually rises, peaking at 9 in May and June, highlighting the importance of sun protection during these months when burn time shortens significantly to just 15 minutes. Interestingly, even as temperatures warm and UV levels increase, November and December see a return to more moderate and lower levels of exposure, with indices of 3 and 2, respectively, allowing for longer safe exposure times. Overall, as the year progresses, residents should be increasingly mindful of UV rays, particularly in the vibrant spring and summer months. For more detailed information, visit Decorah UV Index.
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In Decorah, United States, the vibrant dance of sunlight begins its annual journey in January, where locals can bask in 129 hours of daylight. As winter loosens its grip, February welcomes an increase to 194 hours, hinting at the approaching spring. The transition continues with March and April, witnessing further growth to 231 hours and 232 hours respectively, as the days grow longer and warmer. By May, the region enjoys 257 hours of sunshine, a joyous precursor to the summer months. The sun truly shines its brightest in July, with an impressive 359 hours, inviting outdoor adventures and gatherings. August maintains a robust 324 hours, while September gracefully declines to 261 hours, marking the onset of autumn. As the year progresses, sunlight wanes into the cooler months, with October offering 200 hours and November and December dipping to 191 hours and 180 hours respectively. This annual cycle beautifully illustrates how Decorah's sunshine evolves through the seasons, bringing warmth and light to its community.
In Decorah, the likelihood of enjoying sunny weather in January is relatively low, standing at just 25%. This trend of limited sunshine begins the year on a subdued note, gradually improving in the following months. For instance, February sees a slight increase to 33%, while March brings more rays with 42% likelihood. April and May experience fluctuating percentages around the 30s, but the real transformation happens as the seasons change—by June, the chance of sun rises significantly to 55%, peaking in the summer months. Overall, while January might not offer much in terms of sunny skies, it sets the stage for a notable upward trend as spring transitions into summer, painting a promising picture for sun-seekers ahead.
In Decorah, United States, January marks the beginning of the year's daylight journey, with just 9 hours of sunlight. As the month gives way to February, the days gradually lengthen, reaching 10 hours of daylight. This trend continues into March, where sunlight extends to 11 hours, signaling the burgeoning arrival of spring. With April's arrival comes a more pronounced increase, offering 13 hours of daylight, and by May, the days stretch to a delightful 14 hours. June reaches its peak with an impressive 15 hours, providing long, vibrant days. However, as summer starts to wane, daylight hours gradually diminish, with July and August offering 14 and 13 hours, respectively. September’s light drops slightly to 12 hours, heralding the onset of fall. As the year progresses, the trend reverses: October sees a decrease to 10 hours, and both November and December settle back to 9 hours. This cyclical pattern highlights the seasonal ebb and flow of daylight, a rhythm that shapes life in this picturesque region.
In January, Decorah experiences a gentle breeze with an average wind speed of 3.4 m/s (8 mph), marking one of the calmer months in the annual cycle. As winter gives way to spring, wind speeds gradually pick up, reaching 3.6 m/s (8 mph) in February before climbing to 4.2 m/s (9 mph) in March. Interestingly, April maintains a similar pace with 4.1 m/s, suggesting a consistent uptick in wind activity as the season transitions. In the warmer months, wind speeds take a slight dip, hitting the lowest point in July at 2.9 m/s (6 mph), only to rise again in fall with November showcasing the year's highest average wind speed of 4.5 m/s (10 mph). Overall, January’s mild gusts set the stage for a dynamic wind pattern, highlighting a seasonal variation that brings both tranquility and vigor to Decorah’s atmosphere.
The weather in Decorah changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of January'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.
January and February share strikingly similar average temperatures, remaining quite frigid with average lows around -7°C (20°F). However, February sees a slight increase in maximum temperatures, reaching up to 18°C (65°F) compared to January's maximum of 11°C (51°F). Additionally, February tends to be wetter, with 52 mm (2.0 in) of precipitation over 8 days, slightly more than January's 39 mm (1.5 in) over 7 days. Humidity levels also rise slightly from 84% in January to 85% in February. For more detailed information, visit Decorah weather in February.
January and March reveal a stark contrast in temperatures and overall weather conditions. In January, the temperatures reach a chilling minimum of -33°C (-28°F) and are predominantly cold, with an average of -7°C (20°F) and a maximum of just 11°C (51°F). In contrast, March sees a significant rise in temperatures, with a minimum of -25°C (-12°F) and an average reaching 2°C (35°F), peaking at a much milder 21°C (69°F). While January typically experiences 39 mm (1.5 in) of precipitation over 7 days, March sees an increase in both precipitation to 64 mm (2.5 in) and the number of rainy days, totaling 8. Notably, humidity remains consistent at 84% throughout both months, contributing to the overall dampness. For more details about weather trends in March, visit Decorah weather in March.
In January, the weather is frigid, with average temperatures hovering around -7°C (20°F) and minimums plummeting to -33°C (-28°F). This month sees a lower level of precipitation, totaling 39 mm (1.5 in) over 7 days, alongside high humidity levels at 84%. In contrast, April brings a significant warming trend, with average temperatures rising to 7°C (45°F) and maximums reaching 26°C (80°F). Although precipitation increases to 80 mm (3.2 in) spread over 10 days, the humidity remains slightly lower at 83%. For a closer look at the April weather in Decorah, check out Decorah weather in April.
January and May exhibit striking contrasts in weather. In January, temperatures can plummet to a minimum of -33°C (-28°F), with an average of -7°C (20°F) and a mild maximum of 11°C (51°F). This month also sees significant humidity levels at 84% and a total precipitation of 39 mm (1.5 in) over about 7 days. In contrast, May brings much warmer conditions, with temperatures ranging from a minimum of -2°C (29°F) to a soaring average of 15°C (59°F) and a peak of 33°C (92°F). The month is wetter, too, with precipitation totaling 155 mm (6.1 in) spread across 15 days, while the humidity drops slightly to 75%. For more detailed information, visit Decorah weather in May.
In January, the weather is characterized by frigid temperatures, with minimums dropping to -33°C (-28°F) and an average of -7°C (20°F), while maximums reach only 11°C (51°F). Precipitation is relatively low at 39 mm (1.5 in) over about 7 days, accompanied by high humidity at 84%. In stark contrast, June brings a dramatic warming, with minimum temperatures of 8°C (48°F) and an average of 22°C (71°F), peaking at a scorching 35°C (95°F). The amount of precipitation increases significantly to 130 mm (5.1 in) spread across 11 days, and humidity levels slightly decrease to 79%. For further details about the weather during this month, you can check Decorah weather in June.
January and July present a stark contrast in weather conditions. In January, temperatures plummet with a minimum of -33°C (-28°F) and an average of -7°C (20°F), while precipitation is relatively low at 39 mm (1.5 in) over 7 days, accompanied by high humidity at 84%. In contrast, July boasts much warmer temperatures, with a minimum of 11°C (53°F) and a maximum soaring to 34°C (93°F), resulting in an average of 23°C (74°F). Additionally, July experiences increased precipitation at 106 mm (4.2 in) over 10 days, although the humidity is lower at 75%. This seasonal shift highlights the dramatic differences in weather, making January a month of frigid cold while July embraces warmth and summer rains. For more detailed information about the weather in July, visit Decorah weather in July.
January and August present a striking contrast in weather patterns. In January, temperatures can plummet to a chilling minimum of -33°C (-28°F), while the average sits at a frigid -7°C (20°F), and even the maximum barely reaches 11°C (51°F). This month is characterized by high humidity at 84% and relatively low precipitation, with only 39 mm (1.5 in) falling over 7 days. In stark opposition, August experiences much more temperate conditions, with minimum temperatures of 10°C (51°F) and averages around 21°C (70°F), peaking at a warm 34°C (94°F). August also sees increased rainfall of 109 mm (4.3 in) across 10 days, along with a moderate humidity of 69%. For a detailed look into weather specifics for the summer months, explore Decorah weather in August.
In January, temperatures plunge to a chilling minimum of -33°C (-28°F), with an average of -7°C (20°F) and a maximum of 11°C (51°F), creating a stark winter landscape. Precipitation is relatively low at 39 mm (1.5 in) over 7 days, and the humidity often feels oppressive at 84%. In contrast, September brings a much milder climate, with temperatures ranging from a minimum of 2°C (35°F) to a pleasant average of 18°C (65°F) and a peak of 32°C (90°F). This month experiences significantly higher precipitation at 123 mm (4.8 in) over 10 days, although humidity drops to 74%. For more details on September weather, check Decorah weather in September.
When comparing January and October weather, the contrast is quite stark. In January, temperatures can plummet to a chilling minimum of -33°C (-28°F), with an average low of -7°C (20°F) and a maximum peaking at 11°C (51°F). The month sees a total precipitation of 39 mm (1.5 in) spread over 7 days, with high humidity at 84%. In contrast, October experiences a much milder climate, with minimum temperatures around -7°C (20°F) and an average of 10°C (50°F), reaching a warm maximum of 30°C (86°F). The precipitation increases significantly to 133 mm (5.2 in) over 11 days, accompanied by a slightly lower humidity of 79%. For more insights, check out Decorah weather in October.
January and November exhibit stark differences in weather conditions. In January, temperatures can plummet to a minimum of -33°C (-28°F), with an average of -7°C (20°F) and a maximum of 11°C (51°F). The month experiences 39 mm (1.5 in) of precipitation over seven days, accompanied by high humidity at 84%. In contrast, November presents a milder climate, with minimum temperatures at -16°C (3°F), an average of 2°C (35°F), and a maximum reaching 22°C (72°F). This month sees slightly higher precipitation at 53 mm (2.1 in) over the same number of days, along with an increase in humidity to 88%. For more details, you can explore Decorah weather in November.
In January, the weather is notably colder than in December, with average temperatures plunging to around -7°C (20°F) compared to December's average of -3°C (28°F). The minimum temperature in January can dip as low as -33°C (-28°F), whereas December's minimum only reaches -23°C (-9°F). Both months experience similar levels of precipitation, with January recording 39 mm over 7 days and December seeing 38 mm over 6 days. Humidity remains fairly high in both months, at 84% in January and 82% in December. For a more detailed look at December weather, check out Decorah weather in December.
January in Decorah stands out as a month of biting cold, with temperatures often dipping well below freezing, creating a stark contrast to the milder conditions of other months. The average chill lingers around -7°C, while occasional warmer days remind residents that spring is on the horizon. Precipitation is limited during this time, with only a handful of days experiencing measurable snow or rain, yet the high humidity adds to the frigid air, making it feel even colder. For those interested in understanding the broader climate patterns of Decorah, visit Decorah Climate to explore the unique weather traits throughout the year.