Last updated: February 24, 2025
January in Shasta, United States offers a dynamic winter experience, with temperatures ranging from a brisk -3°C (27°F) at night to a comfortable 21°C (70°F) during the day. The average temperature hovers around 8°C (47°F), providing a refreshing climate for outdoor activities. While January is one of the wetter months, bringing 213 mm (8.4 in) of precipitation over approximately 12 days, the scenery is transformed with vibrant green landscapes and, often, a picturesque blanket of snow. With humidity levels reaching 86%, visitors can expect a chilly yet invigorating atmosphere, perfect for embracing the beauty of winter in this scenic region.
In January, Shasta, United States experiences a cool climate, with minimum temperatures dipping to a brisk -3°C (27°F) and averaging around 8°C (47°F). The month marks a transitional period as winter begins to recede, reaching a pleasant maximum of 21°C (70°F). This trend of gradually warming temperatures continues into February and March, where average highs flirt with the mid-20s (80s°F). As spring approaches in April, the mercury further rises, hinting at the warmer months ahead. Notably, Shasta displays a significant increase in warmth from January to May, transitioning from winter chill to balmy conditions by mid-year, underscoring the region's dynamic climate.
January marks the peak of precipitation in Shasta, United States, with an impressive 213 mm (8.4 in) of rain falling over just 12 days. This significant amount sets the tone for the winter season, as February follows closely with 192 mm (7.5 in), reflecting a pattern of consistent rainfall in the early months of the year. As spring approaches, the precipitation gradually tapers off, plummeting to 92 mm (3.6 in) by April before reaching a mere 59 mm (2.3 in) in May. The trend continues into the summer months, where rainfall dwindles to just 1 mm (0.0 in) in July and 2 mm (0.1 in) in August, indicating a stark contrast to the wet January. Overall, Shasta experiences a clear seasonal shift, with winter and early spring characterized by substantial rainfall, transitioning to dry summers that leave the landscape craving moisture.
In Shasta, United States, January showcases a notable humidity level of 86%, setting the tone for a winter characterized by moisture-laden air. This high humidity gradually tapers off as the months progress, reaching 70% by July and dropping to a drier 60% in August, marking the peak of summer. However, a shift occurs as the year transitions back into fall, with humidity levels climbing once more to 87% in November and reverting to 86% by December. Overall, the trend reveals a clear seasonal cycle: winter and late fall envelop Shasta in higher humidity while the summer months provide a respite, allowing for a drier, more comfortable climate.
In January, Shasta experiences a moderate UV Index of 3, allowing for approximately 30 minutes of sun exposure before risk of skin damage arises. This month marks the beginning of the gradual climb in UV levels, with February maintaining the same index but hinting at the upcoming increase in sunlight intensity. As spring approaches, the UV Index rises significantly, peaking at 8 by April, signifying very high exposure risk and reducing safe burn time to just 15 minutes. The trend continues into the height of summer, where June sees an extreme index of 11, drastically limiting exposure to a mere 10 minutes. As the year winds down, UV levels begin to taper off, with December showcasing a low index of 2, where skin is safe for 45 minutes under the sun. Understanding this seasonal progression is vital for enjoying the outdoors safely. For more details on safe exposure levels throughout the year, check out the Shasta UV Index.
UV Risk Categories
January brings a modest 126 hours of sunshine to Shasta, United States, setting the stage for an upward trend as winter melts into spring. As February arrives, sunlight increases to 194 hours, signaling the gradual return of warmth and longer days. This rise continues into March with 241 hours, leading into an impressive 293 hours in April, as flowers bloom and outdoor activities ramp up. By May, sunny days reach 359 hours, peaking in July with 401 hours, when Shasta enjoys its sunniest days. As summer wanes, a gentle decline in sunshine begins, tapering to 354 hours in August and 312 hours in September, reminding residents to savor the last rays of summer. Autumn brings a more significant drop, concluding the year with 209 hours in November and 170 hours in December, as the landscape transitions into a serene winter. This pattern of increasing sunshine peaking in mid-summer showcases Shasta's delightful seasonal rhythms.
In Shasta, United States, January experiences a modest 32% chance of sunny weather, marking it as the beginning of a gradual shift toward brighter days. As winter gives way to spring, the likelihood of sunshine steadily increases, reaching 53% in February and 60% by March. This upward trend continues into the spring months, with April seeing a significant rise to 74%, and May further elevating the odds to 79%. As the year progresses into the summer, sunshine becomes more prevalent, peaking at an impressive 91% chance in August. This trajectory underscores not only the seasonal transition but also the growing anticipation of warmer, sunnier days as residents look forward to the summer months.
In Shasta, United States, January greets residents with about 9 hours of daylight, marking the beginning of a gradual increase in sunlight as winter transitions to spring. As February rolls in, the days stretch to 10 hours, heralding the approach of brighter months. March continues this uplifting trend, offering 11 hours of light, while April further embraces the warmth of longer days at 13 hours. This increase peaks in June with 15 hours, showcasing the region's vibrant summer. However, as July ushers in a slight decrease, daylight tapers to 14 hours, hinting at the onset of summer’s fade. The trend continues into August with 13 hours, then gently declines through autumn months, resulting in 12 hours in September and 11 hours by October. As the year concludes, daylight returns to 9 hours in both November and December, wrapping up the annual cycle with the same hours it started. This rhythmic ebb and flow of daylight is a beautiful testament to nature's seasons in Shasta.
In Shasta, United States, January greets residents with a gentle average wind speed of 2.0 m/s (4 mph), setting a tranquil tone for the start of the year. As the months progress, a slight upward trend emerges, peaking in May with winds reaching 2.5 m/s (6 mph), just before the summer heat sets in. Interestingly, the wind speeds then stabilize at 2.0 m/s during the peak of summer and tend to remain consistent throughout the fall and winter months, reflecting the region's relatively calm climate. This pattern highlights the gentility of Shasta's winter winds, inviting both locals and visitors to enjoy the peaceful serenity offered during these cooler months.
The weather in Shasta 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 Shasta and find detailed weather information for every month.
January typically experiences a wider range of temperatures with an average of 8°C (47°F) and maximums reaching up to 21°C (70°F), while February shows a slight increase in average temperature at 9°C (49°F) and can peak at a warmer 27°C (81°F). Both months see low minimum temperatures of -3°C (27°F), but February is characterized by fewer precipitation days, totaling 9 compared to January's 12, and slightly lower total precipitation at 192 mm (7.5 in) versus 213 mm (8.4 in). Humidity levels remain relatively stable, with January at 86% and February slightly lower at 85%. For more detailed insights on the climate during this time, check out Shasta weather in February.
January and March present distinct weather patterns, showcasing a transition from winter to spring. In January, temperatures range from a chilly minimum of -3°C (27°F) to a mild maximum of 21°C (70°F), with an average of 8°C (47°F). The month sees significant precipitation, totaling 213 mm (8.4 in) across 12 days, and maintains a high humidity level of 86%. In contrast, March experiences a slight rise in average temperature to 11°C (52°F), with a minimum of 0°C (32°F) and a maximum reaching 27°C (81°F). While it's generally drier than January, March still receives 187 mm (7.4 in) of rain over 14 days, accompanied by a slightly lower humidity of 85%. For more information on the specific weather conditions in March, check out Shasta weather in March.
In January, the weather features colder temperatures, with a minimum of -3°C (27°F) and an average of 8°C (47°F), while the maximum can reach up to 21°C (70°F). This month also sees significant precipitation, with 213 mm (8.4 in) over approximately 12 days and high humidity levels at 86%. In contrast, April offers a milder climate, where minimum temperatures rise to 1°C (35°F), averaging 15°C (59°F), and peaking at 33°C (91°F). April is notably drier, with only 92 mm (3.6 in) of precipitation spread over 8 days and slightly lower humidity at 82%. For more details about April's conditions, visit Shasta weather in April.
January weather is characterized by much cooler temperatures, with a minimum of -3°C (27°F) and an average of 8°C (47°F), while May experiences significantly warmer conditions, boasting a minimum of 3°C (38°F) and an average of 20°C (68°F). The maximum temperatures in January reach up to 21°C (70°F), compared to a scorching high of 38°C (101°F) in May. In terms of precipitation, January is much wetter, with 213 mm (8.4 in) over 12 days, while May sees considerably less rainfall at only 59 mm (2.3 in) across just 5 days. Additionally, humidity is slightly lower in May at 81%, compared to January's 86%. For more specifics about the weather during this month, you can check Shasta weather in May.
The weather in January contrasts sharply with that in June. In January, temperatures range from a minimum of -3°C (27°F) to a maximum of 21°C (70°F), with an average of 8°C (47°F). This month also sees considerable precipitation, with 213 mm (8.4 in) falling over 12 days and humidity levels averaging 86%. In stark contrast, June boasts much warmer temperatures, with a minimum of 8°C (47°F), an average of 25°C (78°F), and maximum highs reaching up to 43°C (109°F). Precipitation is minimal in June, totaling only 8 mm (0.3 in) across just one day, and humidity drops to a more comfortable 79%. For more detailed insights on June weather, you can check out Shasta weather in June.
January and July present dramatically different weather patterns. In January, temperatures range from a chilly -3°C (27°F) to a mild maximum of 21°C (70°F), with an average of 8°C (47°F). The month sees significant precipitation, with 213 mm (8.4 in) falling over 12 days and high humidity at 86%. In contrast, July boasts much warmer conditions, with temperatures peaking at a scorching 44°C (111°F) and an average of 30°C (86°F). Precipitation is minimal, with only 1 mm (0.0 in) recorded and no rainy days, along with lower humidity levels at 70%. For more insights into July weather, check out Shasta weather in July.
In January, temperatures often dip to a minimum of -3°C (27°F) and can reach a maximum of 21°C (70°F), with an average of 8°C (47°F). The month is characterized by heavy precipitation, totaling 213 mm (8.4 in) over approximately 12 days, coupled with high humidity at 86%. In contrast, August experiences significantly warmer temperatures, with a minimum of 15°C (59°F) and highs soaring to 44°C (112°F), leading to an average of 28°C (83°F). The summer month is remarkably dry, receiving only 2 mm (0.1 in) of precipitation with no rainy days and a lower humidity level of 60%. This stark contrast in weather highlights the seasonal variations in Shasta. For more details, visit Shasta weather in August.
January and September exhibit striking differences in weather patterns. In January, temperatures can drop as low as -3°C (27°F), with an average of 8°C (47°F) and reaching a maximum of 21°C (70°F). This month is also characterized by significant rainfall, totaling 213 mm (8.4 in) over 12 days, and high humidity at 86%. In contrast, September offers a much warmer climate, with temperatures ranging from a minimum of 7°C (44°F) to an average of 24°C (75°F), and soaring highs of 43°C (109°F). Precipitation is minimal during this month, with only 9 mm (0.3 in) recorded on just 1 day, and humidity levels are lower at 62%. For more details on September weather, visit Shasta weather in September.
January and October present contrasting weather patterns. In January, temperatures can range from a chilly -3°C (27°F) at night to a mild 21°C (70°F) during the day, with an average of 8°C (47°F). This month features significant precipitation, totaling 213 mm (8.4 in) over approximately 12 days, along with high humidity levels at 86%. In contrast, October enjoys a much warmer climate with nighttime lows of 5°C (41°F) and daytime highs reaching a sweltering 38°C (101°F), averaging 17°C (64°F). Precipitation drops considerably to 66 mm (2.6 in) across just 4 days, and humidity also decreases to 72%. For a closer look at October's weather specifics, check out Shasta weather in October.
In comparing the weather of January and November, it is evident that November tends to be milder. While January experiences a minimum temperature of -3°C (27°F) and an average of 8°C (47°F), November sees slightly warmer conditions with a minimum of -1°C (31°F) and an average of 12°C (54°F). The maximum temperatures in both months can be quite variable, but November can reach up to 29°C (84°F), significantly warmer than January's maximum of 21°C (70°F). Additionally, November has less precipitation at 123 mm (4.8 in) over 7 days compared to January's 213 mm (8.4 in) over 12 days. Humidity remains similar, with January at 86% and November at 87%. For a more detailed insight into November's climate, you can visit Shasta weather in November.
In comparing the weather of January and December, both months exhibit similar average temperatures, with January ranging from a minimum of -3°C (27°F) to a maximum of 21°C (70°F), while December shows a slightly warmer range with a minimum of -1°C (30°F) and a maximum of 22°C (73°F). Both months also maintain high humidity levels at 86%, contributing to a cool feel. However, January is noticeably wetter, receiving 213 mm (8.4 in) of precipitation over 12 days, compared to December's 149 mm (5.9 in) over 11 days. For a closer look at December weather, you can visit Shasta weather in December.
January in Shasta sees a distinct contrast from the milder months, marked by a cool average temperature and the potential for frosty nights. This month experiences significant precipitation, with rain occurring over about a third of the days, making it one of the wettest periods of the year. Coupled with a high humidity level, the winter chill can feel quite pronounced, setting the stage for a different kind of beauty in the landscape. As you plan your visit, be prepared for these unique January conditions, which beautifully showcase Shasta's winter charm. For a deeper dive into what to expect throughout the year, check out Shasta Climate.