Last updated: February 24, 2025
January in Thermopolis, Wyoming presents a stark winter landscape, characterized by a wide temperature range. With maximum temperatures reaching a brisk 11°C (52°F) and plunging to a minimum of -29°C (-20°F), the month averages a chilly -6°C (21°F). It's a time when residents can expect precipitation amounting to 11 mm (0.4 in) over just two days, creating occasional bursts of winter weather. The humidity lingers around a notable 90%, contributing to the crisp, cold air. This unique blend of temperatures and moisture defines the winter experience in Thermopolis, making January a month of both beauty and chill.
In January, Thermopolis, United States, experiences a frigid climate with temperatures that can plunge to a chilling -29°C (-20°F) at night, while averaging around -6°C (21°F) during the day. The month showcases a dramatic range, peaking at a modest 11°C (52°F), hinting at the variability winter can bring. As winter progresses into February, the temperatures remain similarly harsh, yet slightly milder, with a minimum of -25°C (-13°F) and a maximum reaching 14°C (57°F). The cold begins to ease as March approaches, revealing a promising shift with average temperatures climbing to 3°C (37°F) and highs soaring to 24°C (76°F). This gradual warming trend continues into spring, providing a powerful contrast to the depths of January's chill, symbolizing the transition from winter's grasp to the awakening of more temperate conditions.
In Thermopolis, January is typically a dry month, with only 11 mm (0.4 in) of precipitation spread over just 2 days. This marks the beginning of a gradual increase in rainfall as the year progresses; February sees a notable rise to 21 mm (0.8 in), and by March, precipitation continues to climb, reaching 22 mm (0.9 in). As winter yields to spring, rainfall becomes more frequent, peaking in April with 53 mm (2.1 in), showcasing a striking transition to the wetter months ahead. This trend reflects a seasonal pattern where May introduces even heavier rains at 67 mm (2.6 in), before tapering off in the summer months. Overall, January sets the stage for a gradual build-up of precipitation, highlighting the stark shifts in weather that characterize Thermopolis throughout the year.
In Thermopolis, United States, January is characterized by a notably high humidity level of 90%, setting the stage for a winter month enveloped in moisture. This humidity begins to decline in February to 89%, but the winter months remain relatively damp, with levels dropping more significantly as spring approaches. By March, humidity lowers to 82%, and a continued decrease through April (72%) and May (69%) suggests a gradual transition into a drier climate. The summer months see humidity dipping to its lowest in July and August, reaching 65% and 59%, respectively. However, as fall arrives and winter looms again, a clear trend emerges with humidity climbing back up to 83% in November and returning to 89% in December. This cyclical pattern illustrates how the seasons in Thermopolis influence humidity, creating a unique climatic rhythm.
In Thermopolis, January greets residents with a moderate UV Index of 3, allowing for up to 30 minutes of safe sun exposure before the risk of burning increases. As the month transitions into February, the UV Index rises to 5, maintaining the moderate exposure category but signaling the start of a trend that sees UV levels steadily climbing towards spring. By March, the Index peaks at 6, entering the high exposure category where the burn time decreases to 25 minutes. This upward trajectory continues, peaking in the summer months with values reaching 11, categorized as extreme. Therefore, as warmer weather approaches, it's crucial to stay informed of UV Index levels and take appropriate precautions, especially in the sunny months ahead. For more detailed insights, visit Thermopolis UV Index.
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January in Thermopolis ushers in a modest 169 hours of sunshine, a gentle start to the year that hints at the brighter days to come. As the month progresses into February, sunlight increases significantly to 219 hours, showcasing an early promise of spring. The trend continues into March and April, where hours of sunshine rise substantially, reaching 283 and 293 hours respectively. This gradual buildup peaks in the summertime, with July basking in a brilliant 391 hours of sunlight. Even as the summer wanes, August retains a generous 356 hours, making it the perfect time for outdoor activities. However, the trend shifts as the days shorten into fall and winter, with sunshine hours tapering off, culminating in 216 hours in December. In Thermopolis, the sun's journey throughout the year vividly illustrates the seasonal rhythms, blending warm summer rays with the crisp, clear brilliance of winter.
In Thermopolis, United States, January boasts a 53% chance of sunny weather, making it one of the more promising months for sunshine in winter. This figure is relatively higher compared to the subsequent month of February, which dips to 45%, but aligns closely with March's 50%. A noticeable trend emerges as spring approaches, where the likelihood of sunnier days fluctuates modestly, with April at 49% and May also at 45%. The real shift towards abundant sunshine occurs in late spring and summer, peaking in the warmer months of June, July, and August, where chances soar to 68% and above. Therefore, while January may not be the sunniest month, it offers a brighter beginning to the year compared to its immediate successor, hinting at the sunnier days to come.
In Thermopolis, United States, January brings about 9 hours of daylight, marking the month as a time of shorter days as winter holds its grip. However, as the calendar turns to February, there’s a noticeable increase, with daylight extending to 10 hours, hinting at the impending arrival of spring. This upward trend continues through the spring months, with 11 hours in March and a leap to 13 hours by April. As May and June arrive, daylight peaks at 14 and 15 hours, respectively, offering the longest days of the year and ideal conditions for outdoor activities. The daylight begins to wane slightly in July, maintaining 15 hours before tapering off to 13 hours in August. The gradual descent resumes as fall approaches, dropping to 12 hours in September, then further down to 10 hours in October, and finally settling back at 9 hours in November. The cycle completes with 8 hours in December, as winter once again cloaks the days in darkness, illustrating the rhythmic dance of light and seasons in this charming Wyoming town.
In January, Thermopolis experiences a gentle breeze, with an average wind speed of 2.4 m/s (5 mph), setting a calm tone for the new year. As winter transitions into spring, February sees a slight uptick to 2.6 m/s (6 mph), while March continues this trend, reaching 2.8 m/s (6 mph). This gradual increase peaks in April at 3.2 m/s (7 mph), heralding the approach of warmer months. However, winds moderate again in May and July, returning to 2.8 m/s and 2.5 m/s, respectively. As the summer wanes, wind speeds stabilize, floating around 2.6 m/s in August and September before dropping back to 2.4 m/s in November. The final month of the year, December, surprises with a brisk 3.1 m/s (7 mph), hinting at the arrival of winter’s chill. Overall, the trend reveals a subtle ebb and flow, with gentle breezes predominant but occasional bursts that punctuate the seasonal shifts.
The weather in Thermopolis 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 Thermopolis and find detailed weather information for every month.
January and February display some similarities in their winter weather patterns, but noticeable differences also emerge. Both months share an average temperature of -6°C (21°F), with January experiencing a slightly lower minimum temperature of -29°C (-20°F) compared to February's -25°C (-13°F). February, however, sees a higher maximum temperature, reaching 14°C (57°F) compared to January's 11°C (52°F). Precipitation also varies, with February receiving twice as much as January—21 mm (0.8 in) versus 11 mm (0.4 in)—and occurring over more days, which contributes to a more humid feel, although both months maintain similar humidity levels near 90%. For those interested in more details about February's weather, information can be found here: Thermopolis weather in February.
January and March present stark differences in weather conditions. In January, temperatures can plunge as low as -29°C (-20°F), with an average of -6°C (21°F) and a maximum of 11°C (52°F), making it the coldest month. Precipitation is limited, occurring on only 2 days, with a total of 11 mm (0.4 in) and relatively high humidity at 90%. In contrast, March brings a noticeable warming trend, with minimum temperatures around -27°C (-16°F) and an average of 3°C (37°F), peaking at a balmy 24°C (76°F). The month sees more precipitation—22 mm (0.9 in) across 5 days—while humidity decreases to 82%. For a closer look at weather specifics in March, check out Thermopolis weather in March.
January and April exhibit stark differences in weather characteristics. In January, temperatures can plummet as low as -29°C (-20°F), with an average of -6°C (21°F) and maximums reaching only 11°C (52°F). The month is marked by high humidity levels at 90% and minimal precipitation, averaging just 11 mm (0.4 in) over 2 days. In contrast, April ushers in a significant warming trend, with minimum temperatures around -15°C (5°F) and average highs of 27°C (80°F). It also sees increased precipitation, totaling 53 mm (2.1 in) spread over 9 days, coupled with a reduction in humidity to 72%. For a closer look at April weather specifics, check out Thermopolis weather in April.
January and May present a stark contrast in weather conditions. In January, temperatures plummet, with minimums reaching as low as -29°C (-20°F) and an average around -6°C (21°F), accompanied by high humidity levels of 90%. Precipitation is scarce, with only 11 mm (0.4 in) falling over just two days. In contrast, May sees a significant warm-up, featuring minimum temperatures of -4°C (25°F) and averages soaring to 12°C (54°F), peaking at a maximum of 31°C (88°F). This month also experiences increased rainfall, totaling 67 mm (2.6 in) across about ten days, and a decrease in humidity to 69%. For more information on the weather conditions in May, check out Thermopolis weather in May.
January and June present stark contrasts in weather conditions. In January, temperatures can plunge as low as -29°C (-20°F), with an average of -6°C (21°F) and a maximum of 11°C (52°F). The month is characterized by high humidity at 90% and minimal precipitation, averaging only 11 mm (0.4 in) over just two days. In sharp contrast, June sees milder temperatures, with a minimum of 1°C (35°F), an average of 20°C (68°F), and a scorching maximum of 39°C (103°F). This month experiences greater rainfall, totaling 27 mm (1.1 in) over six days, and a lower humidity level at 67%. For more detailed information about the weather conditions in June, check out Thermopolis weather in June.
January and July present starkly contrasting weather conditions. In January, temperatures range from a chilling minimum of -29°C (-20°F) to a maximum of 11°C (52°F), with an average of -6°C (21°F). The month sees minimal precipitation of 11 mm (0.4 in) over just two days, coupled with high humidity at 90%, creating a frigid atmosphere. In contrast, July boasts a much warmer climate, with temperatures soaring from a low of 7°C (44°F) to a scorching high of 40°C (104°F) and an average of 24°C (76°F). Although the precipitation slightly increases to 13 mm (0.5 in) over the same two days, humidity drops to 65%, yielding a much drier and more comfortable environment. For more detailed insights, check out Thermopolis weather in July.
January and August present starkly contrasting weather conditions. In January, temperatures can plummet to a chilling minimum of -29°C (-20°F), with an average sitting at a frigid -6°C (21°F) and a maximum of only 11°C (52°F). The month receives minimal precipitation, totaling just 11 mm (0.4 in) over about 2 days, accompanied by high humidity levels reaching 90%. In contrast, August features a much milder climate, with minimum temperatures of 7°C (44°F) and an average soaring to a comfortable 22°C (72°F), peaking at a sizzling 38°C (100°F). Precipitation increases slightly to 18 mm (0.7 in) over 3 days, and humidity drops to a more manageable 59%. For more insights on summer weather, check out Thermopolis weather in August.
January and September present stark contrasts in weather conditions. In January, temperatures can plummet to a minimum of -29°C (-20°F), with an average temperature of -6°C (21°F) and a maximum of 11°C (52°F). The month sees minimal precipitation, with only 11 mm (0.4 in) over just 2 days, accompanied by a high humidity level of 90%. In contrast, September experiences a much milder climate, with temperatures ranging from a minimum of -4°C (24°F) to a sweltering maximum of 37°C (100°F) and an average of 17°C (62°F). The month has more precipitation than January, totaling 27 mm (1.0 in) across 3 days, and the humidity drops significantly to 59%. For more details on weather during this month, you can read about Thermopolis weather in September.
When comparing the weather in January and October, a stark contrast emerges. January typically experiences frigid temperatures, with a minimum of -29°C (-20°F) and an average of -6°C (21°F), while precipitation is minimal at 11 mm (0.4 in) over just 2 days. In contrast, October welcomes milder conditions, showcasing a greater temperature range with a minimum of -22°C (-8°F) and an average of 7°C (44°F), peaking at a warm 28°C (83°F). Additionally, October sees more frequent precipitation totaling 27 mm (1.1 in) over 6 days, as humidity decreases to 69%. For a closer look at how October unfolds, check out Thermopolis weather in October.
January and November present markedly different weather conditions. In January, temperatures plunge to a minimum of -29°C (-20°F) and an average of -6°C (21°F), with a max around 11°C (52°F). It is characterized by low precipitation, averaging just 11 mm (0.4 in) over two days, accompanied by high humidity levels at 90%. In contrast, November offers a milder climate, with temperatures ranging from a minimum of -16°C (4°F) to a more comfortable average of 1°C (35°F), peaking at 21°C (70°F). Precipitation increases to 17 mm (0.7 in) across four days, with slightly lower humidity at 83%. For a closer look at weather conditions in November, visit Thermopolis weather in November.
In comparing the weather between January and December, January tends to be slightly colder overall. The average temperature in January is -6°C (21°F), whereas December has a milder average of -4°C (24°F). Although January experiences a slightly lower minimum temperature of -29°C (-20°F) compared to December's -25°C (-12°F), it does also reach a maximum of 11°C (52°F) against December's warmer high of 18°C (65°F). Precipitation is marginally lower in January at 11 mm (0.4 in) over just 2 days, compared to December's 14 mm (0.6 in) over 4 days. Humidity remains high in both months, with January at 90% and December at 89%. For more details on December weather, you can visit Thermopolis weather in December.
January in Thermopolis brings a notable chill, with temperatures often dipping significantly lower than in other months, creating a stark contrast to the milder temperatures of spring and summer. With an average of just -6°C, the winter months envelop the town in a frosty embrace, while the high humidity of around 90% adds an extra bite to the cold. Despite the occasional minor precipitation, typically spanning only two days, the cold and crisp air dominates the landscape. As residents and visitors bundle up against the icy temperatures, the serene winter scenery offers a unique charm that sets January apart from the warmer seasons. For those curious about how this winter season fits into the broader climate patterns, be sure to check out Thermopolis Climate.