Last updated: February 24, 2025
Bethlehem, United States, experiences a unique January climate, characterized by a maximum temperature of 18°C (64°F) and an average chill at 0°C (32°F). The month can be quite cold, plunging to a minimum of -20°C (-4°F), which is a stark contrast to the milder highs. With precipitation totaling 72 mm (2.8 in) over approximately 8 days, residents often encounter a damp atmosphere, complemented by a noticeable humidity level of 87%. This combination creates a typical winter setting, ideal for cozy indoor activities amidst the occasional outdoor snowfall.
In Bethlehem, United States, January marks a notably cold beginning to the year, with temperatures dipping as low as -20°C (-4°F) and averaging around 0°C (32°F). This month sees a wide range in temperature, peaking at a mild 18°C (64°F), hinting at the possibility of early spring warmth on the horizon. As winter progresses into February, temperatures barely change, with similar minimums and a slight average rise to 1°C (35°F). The transition into March brings a gradual warming trend; however, the coldest nights can still plummet to -20°C (-4°F). Overall, January's temperatures set the stage for the wintry chill that characterizes the region, while subtle hints of warmth playfully tease the upcoming spring.
In Bethlehem, January experiences moderate precipitation, with an average of 72 mm (2.8 in) falling over 8 days. This sets the stage for a progressively wetter February, which sees an increase to 108 mm (4.2 in) across 12 days. As winter transitions to spring, precipitation peaks in May with 139 mm (5.5 in), highlighting the trend of increased rainfall during the warmer months. Notably, while January’s precipitation is relatively low, the consistent rise in both amount and rainy days through the late winter and into spring illustrates a clear seasonal pattern.
In January, Bethlehem experiences a high humidity level of 87%, making it one of the most humid months of the year, closely followed by November, which also sees 87%. This trend of elevated humidity gradually decreases as winter transitions into spring, with February and March both hovering around 85%. As the seasons warm, the humidity continues to drop, reaching a yearly low of 62% in August. This gradual decline hints at the region's shift from the damp, cold winter months to the drier, warmer summer days. However, as fall approaches, humidity levels rise again in September and October, culminating in a slight resurgence as winter re-engages in December, when humidity returns to 85%. Overall, Bethlehem's humidity levels reflect a clear seasonal pattern, influenced by the changing weather throughout the year.
In January, the UV Index in Bethlehem, United States, registers at a moderate level of 3, indicating a burn time of about 30 minutes for unprotected skin. As winter progresses into February, the UV Index rises to 5, maintaining the same exposure category and burn time. This trend of increasing UV levels continues through March, where it reaches 6 and transitions into the high exposure category, reducing the burn time to 25 minutes. As spring unfolds into the summer months, the UV Index peaks at 10 from May through July, alerting residents to very high exposure and significantly decreased burn times of just 15 minutes. By August and September, the UV levels remain high but slightly diminish to 9 and 8, respectively, before tapering off into the fall months. Notably, as temperatures drop, December sees the UV Index decrease to 2, with a burn time of 45 minutes, indicating a seasonal shift in sun exposure. For a comprehensive view of the UV Index throughout the year, visit Bethlehem UV Index.
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In Bethlehem, United States, January shines with a modest 136 hours of sunlight, setting the stage for a gradual brightening as winter gives way to spring. By February, the sun's presence increases to 172 hours, hinting at the promise of longer days ahead. As we move into March and April, sunlight peaks at 239 hours and 236 hours respectively, ushering in a vibrant transition. The real sun-soaked delight arrives in the summer months, with June and July basking in an impressive 304 hours and 334 hours of sunshine, the peak of the year's luminosity. Come August, the glow begins to wane slightly with 301 hours, though still radiant. As fall takes hold, September and October see a gentle decline to 265 hours and 212 hours, before November and December settle in with fewer rays at 203 hours and 169 hours. This annual journey through sunlight reflects the rhythmic dance of the seasons, inviting residents and visitors alike to savor the evolving beauty of each month.
In Bethlehem, the likelihood of sunny weather in January stands at 38%, offering a modest chance of blue skies amidst the winter chill. This percentage is higher than that of February, which dips to 27%, suggesting that as winter lingers, the sun becomes a slightly more frequent visitor. However, the sunny days peak in March at 55%, heralding the arrival of spring. Following this upward trend, April maintains a solid 42%, while May closely trails with 39%. The overall patterns indicate that while January might not bask in abundant sunlight, the promise of sunnier days is just around the corner as winter transitions to spring.
In Bethlehem, United States, January marks the beginning of the year with 9 hours of daylight, setting a gradual trend towards longer days. As winter progresses into February, daylight increases to 10 hours, hinting at the approach of spring. By March, sunlight extends to 11 hours, and the days continue to grow longer, reaching 13 hours by April. The height of daylight occurs in June with a generous 15 hours, before beginning a gentle decline as summer gives way to fall. As July fades into August, daylight diminishes slightly to 14 hours, followed by 13 hours in September. The daylight duration contracts further through the autumn months, dropping back to 11 hours in October and returning to 9 hours by December and January. This rhythmic cycle of daylight not only marks the changing seasons but also enriches the experiences of those living in Bethlehem.
In Bethlehem, United States, January ushers in a refreshing average wind speed of 3.2 m/s (7 mph), marking the windiest month of the year. As winter unfolds into spring, the winds see a slight increase in March to 3.4 m/s (8 mph), offering a teasing hint of the warmer days to come. However, by the time we reach the sunnier months of late spring and summer, the winds begin to slow down, dipping to 2.2 m/s (5 mph) in July and further decreasing through August. This trend of diminishing winds continues into the autumn, with speeds plateauing at 2.7 m/s (6 mph) from September to December. Overall, January's brisk winds set a dynamic start to the year, gradually giving way to the calm serenity of summer, illustrating the seasonal ebb and flow of breezy delights.
The weather in Bethlehem 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 Bethlehem and find detailed weather information for every month.
January is characterized by colder temperatures, with a minimum reaching -20°C (-4°F) and an average of 0°C (32°F). In contrast, February sees a slight warming trend, with temperatures ranging from a minimum of -19°C (-1°F) to an average of 1°C (35°F), and reaching up to 25°C (77°F). While January experiences about 72 mm (2.8 in) of precipitation over 8 days, February has higher precipitation at 108 mm (4.2 in) spread over 12 days. Humidity levels remain similar in both months, hovering around 87% in January and slightly lower at 85% in February. For a more detailed look at February conditions, visit Bethlehem weather in February.
January and March present strikingly different weather conditions despite having similar minimum temperatures. In January, the average temperature hovers around 0°C (32°F), with maximums reaching only 18°C (64°F), while March sees a rise in the average to 5°C (40°F), with a notable high of 26°C (78°F). Precipitation is higher in March, totaling 98 mm (3.9 in) over 11 days compared to January's 72 mm (2.8 in) over 8 days. Humidity levels are relatively similar, with January at 87% and March slightly lower at 85%. For more specific details about March weather in this region, you can refer to Bethlehem weather in March.
January and April present stark contrasts in weather conditions. In January, temperatures can plummet to a minimum of -20°C (-4°F), with an average around freezing at 0°C (32°F) and occasional peaks reaching 18°C (64°F). The month experiences 72 mm (2.8 in) of precipitation over about 8 days, coupled with a high humidity of 87%. In contrast, April sees a milder climate with minimum temperatures around -4°C (25°F) and average temperatures rising to 10°C (51°F), peaking at a warm 29°C (85°F). April also brings increased precipitation, totaling 108 mm (4.2 in) across 12 days, while humidity remains relatively high at 83%. For more detailed information on April’s weather patterns, you can visit Bethlehem weather in April.
January and May present striking contrasts in weather conditions. In January, temperatures are quite frigid, ranging from a minimum of -20°C (-4°F) to a maximum of 18°C (64°F), with an average temperature around 0°C (32°F). The month sees considerable humidity at 87% and experiences precipitation over 8 days, totaling 72 mm (2.8 inches). In contrast, May ushers in a much warmer climate, with temperatures ranging from a minimum of 0°C (32°F) to a balmy maximum of 33°C (91°F), and an average of 16°C (62°F). This transition to spring features more rain, with precipitation reaching 139 mm (5.5 inches) over 13 days and a decrease in humidity to 75%. For more details on weather specifics, you can check Bethlehem weather in May.
In January, Bethlehem experiences frigid temperatures, with a minimum of -20°C (-4°F) and an average of around 0°C (32°F), while June brings much warmer conditions, with averages soaring to 21°C (70°F) and highs reaching up to 35°C (94°F). January is not only colder but also sees higher humidity levels at 87% compared to June's 73%, giving rise to a chill that lingers in the air. Additionally, January tends to be drier, with 72 mm (2.8 in) of precipitation over 8 days, while June records more rainfall at 102 mm (4.0 in) over 12 days. For more detailed insights on the weather during this warmer month, you can check Bethlehem weather in June.
In January, Bethlehem experiences frigid temperatures with a minimum of -20°C (-4°F) and an average around 0°C (32°F), while July brings a much warmer climate, with averages around 25°C (76°F) and maximums soaring to 36°C (96°F). Precipitation also varies significantly between the two months; January sees about 72 mm (2.8 in) over 8 days, whereas July has a higher total of 127 mm (5.0 in) spread over 12 days. Additionally, January is characterized by a high humidity level of 87%, creating a chilling effect, in contrast to the more moderate humidity of 65% in July. For more detailed insights on summer weather, you can visit Bethlehem weather in July.
January and August present stark contrasts in weather. In January, temperatures plunge to a minimum of -20°C (-4°F) and struggle to reach an average of 0°C (32°F), while occasional highs can reach 18°C (64°F). This frigid month is characterized by high humidity at 87% and significant precipitation totaling 72 mm (2.8 in) over 8 days. In contrast, August brings warmth with a minimum temperature of 11°C (52°F) and an average of 23°C (74°F), peaking at a maximum of 34°C (94°F). This summer month experiences more rainfall, with 140 mm (5.5 in) occurring over 13 days, but the humidity drops to a more comfortable 62%. For more insights into the warm, summer conditions, explore Bethlehem weather in August.
Comparing January and September weather reveals a stark contrast in temperatures and conditions. January experiences much colder temperatures, with a minimum of -20°C (-4°F) and an average of 0°C (32°F), while September boasts milder conditions, with a minimum of 3°C (37°F) and an average of 20°C (68°F). Additionally, January is marked by higher humidity at 87%, contrasted with September's lower humidity of 66%. Precipitation is prevalent in both months, but September sees a considerable increase in total rainfall at 109 mm (4.3 in) over 9 days, compared to January's 72 mm (2.8 in) over 8 days. For more details on weather trends specific to September, you can visit Bethlehem weather in September.
In January, the temperatures in Bethlehem can plunge to a minimum of -20°C (-4°F), with an average of 0°C (32°F) and a maximum reaching 18°C (64°F). The month is characterized by high humidity at 87% and receives about 72 mm (2.8 in) of precipitation over approximately 8 days. In contrast, October brings much milder weather, with minimum temperatures around 1°C (34°F), averages peaking at 14°C (58°F), and a maximum of 33°C (91°F). The month experiences slightly increased precipitation at 123 mm (4.8 in) over about 10 days, accompanied by lower humidity at 79%. For more detailed insights, you can check Bethlehem weather in October.
In comparing the weather between January and November, January experiences a colder climate with minimum temperatures plunging to -20°C (-4°F) and an average of 0°C (32°F), while November offers milder conditions with minimums around -13°C (9°F) and an average of 6°C (43°F). Additionally, November can reach maximum temperatures as high as 24°C (75°F), making it significantly warmer than January, which tops out at 18°C (64°F). Precipitation levels are slightly higher in November, totaling 91 mm (3.6 in) over 9 days compared to January's 72 mm (2.8 in) over 8 days. Interestingly, both months share the same humidity level of 87%, contributing to a consistent dampness in the air. For more insights on what to expect, check out Bethlehem weather in November.
Comparing the weather in January to December reveals some notable differences. In January, temperatures can reach a minimum of -20°C (-4°F) and an average of 0°C (32°F), while December offers slightly milder conditions with minimum temperatures around -14°C (8°F) and an average of 2°C (36°F). The maximum temperatures in both months are similar, peaking at 18°C (64°F) in January and 17°C (63°F) in December. January also sees less precipitation, totaling 72 mm (2.8 in) over 8 days, compared to December's 108 mm (4.2 in) across 11 days. Additionally, humidity levels are comparable, with January at 87% and December slightly lower at 85%. For more detailed insights, you can check the Bethlehem weather in December.
As winter fully embraces Bethlehem in January, the weather showcases a stark contrast to the milder months surrounding it. With average temperatures dipping significantly and the potential for chilly nights, residents and visitors alike can expect a diverse climate experience. January also brings with it a notable amount of precipitation, making the air feel brisk and humid, and often leading to a winter wonderland aesthetic. This month stands out from others, capturing the essence of winter's chill while providing a brief respite from the harsher extremes of the season. For a deeper understanding of how Bethlehem's climate evolves throughout the year, visit Bethlehem Climate.