Last updated: February 24, 2025
April in Saint Helens, United States showcases a dynamic range of temperatures, with a maximum reaching 29°C (85°F) and a minimum dipping to -1°C (30°F). The average temperature settles around a comfortable 10°C (51°F), making it a transitional month as spring unfolds. However, residents should prepare for significant precipitation, totaling around 140 mm (5.5 in) over approximately 16 days of rain, contributing to a high humidity level of 83%. With such variability, April in Saint Helens is a reminder of nature’s unpredictability, offering both warmth and refreshing showers.
In April, Saint Helens experiences a delightful transition into spring, with temperatures showing a noticeable upward trend. The minimum temperature rises to a comfortable -1°C (30°F), while the average climbs to 10°C (51°F), offering a pleasant relief from the chillier months. The contrast becomes even more striking as the maximum temperature can reach an impressive 29°C (85°F), inviting residents to enjoy outdoor activities as nature begins to bloom. This month not only marks a significant warming but also sets the stage for the warmer days ahead, making April a pivotal time to embrace the vibrant changes in weather and scenery.
In April, Saint Helens experiences a significant shift in precipitation as the region transitions into spring. With a total of 140 mm (5.5 in) of rainfall over 16 days, April marks a decrease from the wetter months of winter, specifically from January and February, which both averaged a robust 205 mm (8.1 in). This trend continues into May when precipitation drops further to just 73 mm (2.9 in), signaling the onset of drier conditions. The reduction in rainfall not only reflects the region’s seasonal changes but also highlights a pattern of diminished precipitation as the year progresses towards summer. Thus, April serves as a bridge between the heavy rains of early spring and the impending dry months, offering a unique glimpse into the Pacific Northwest's dynamic climate.
In April, Saint Helens experiences a slight dip in humidity, with levels averaging 83%, down from the consistent 85% seen in the first three months of the year. This gradual decrease continues into May and June, suggesting a transition towards the drier summer months. Interestingly, humidity remains higher during the late fall and winter, peaking at 87% in both November and December. Overall, April’s humidity reflects the region's characteristic dampness while hinting at a shift toward more comfortable conditions as the year progresses.
As April unfolds in Saint Helens, United States, residents can expect a noticeable uptick in UV radiation, with the UV Index climbing to 6, categorized as high. This shift marks a significant transition from the moderate levels seen in March, bringing with it a reduced burn time of just 25 minutes. As the days grow longer and sunnier, it’s essential to stay vigilant about skin protection, especially with the UV Index reaching even higher peaks in the upcoming months of May and June. The trend towards increased sun exposure continues, urging residents to be proactive in safeguarding their skin as they enjoy the beauty of spring. For detailed information on daily UV levels, check out Saint Helens UV Index.
UV Risk Categories
April in Saint Helens shines brightly with 229 hours of sunshine, marking a delightful transition into spring. This surge in sunlight is a promising precursor to the even sunnier days ahead, as May delights with 282 hours, paving the way for the peak summer months. Notably, the trend showcases a steady increase from the winter's 88 hours in January to the blooming vibrancy of April, illustrating how the region shakes off the winter chill. As summer approaches, the long, sunlit days continue to mesmerize, reaching their pinnacle in July with a remarkable 374 hours. April, with its blossoming charm and rising sun, serves as a beautiful reminder of the energy and warmth that the season brings, setting the stage for the golden months ahead.
As April approaches in Saint Helens, the likelihood of sunny weather significantly increases, with a 53% chance of sunshine—a notable rise from the 35% seen in March. This trend continues the upward trajectory from the winter months, where sunshine chances lingered around a mere 15%. Following April, sunny days remain fairly stable into May before reaching a peak in July at 73%. Overall, if you're dreaming of brighter days, April marks a turning point, welcoming a refreshing uptick in sunshine that hints at the warmer months ahead.
As April unfolds in Saint Helens, the days grow noticeably longer, offering 13 hours of daylight—an increase that marks a delightful transition from the shorter days of winter. Following the trend of gradual lengthening since January's 9 hours, April stands as a significant milestone, paving the way for brighter May and June, where daylight peaks at 14 and 15 hours respectively. This steady rise in sunlight not only invites longer outdoor activities but also signals the vibrant arrival of spring, as the world awakens from its winter slumber, encouraging both residents and nature to embrace the warmth and light ahead.
In April, the winds in Saint Helens, United States, settle into a gentle rhythm, with an average wind speed of 2.1 m/s (5 mph). This slight dip from the previous months reflects a transitional period as winter whispers farewell and spring begins to take hold. Interestingly, the wind speed in April is the lowest recorded in the first half of the year, suggesting a calmness that may complement the blooming scenery. As the seasons progress towards May—where winds pick up again to 2.5 m/s (6 mph)—this April lull provides a perfect backdrop for enjoying the resurgence of nature, making it an ideal time for tranquil walks and outdoor exploration in the crisp spring air.
The weather in Saint Helens changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of April's weather with other months, highlighting differences in temperature, precipitation, and other key factors. Click on each section to discover seasonal trends in Saint Helens and find detailed weather information for every month.
April weather in Saint Helens contrasts significantly with January's chill, showcasing a shift towards milder temperatures. While January experiences a minimum of -14°C (7°F) and an average of 5°C (41°F), April offers a more comfortable minimum of -1°C (30°F) and an average temperature reaching 10°C (51°F). Notably, April can see a maximum temperature as high as 29°C (85°F), making it feel much warmer than the cold peaks of January, which cap at 14°C (58°F). Precipitation is also notable, with April receiving 140 mm (5.5 in) over 16 days compared to January's 205 mm (8.1 in) over 17 days, reflecting a similar tendency for wet weather but less intensity overall in April. Both months show high humidity, with January at 85% and April slightly lower at 83%. For more details, check out Saint Helens weather in January.
April and February exhibit notable differences in weather patterns. In April, temperatures range from a chilly minimum of -1°C (30°F) to a pleasant maximum of 29°C (85°F), with an average temperature of 10°C (51°F). The month sees around 140 mm (5.5 in) of precipitation, occurring over 16 days, and maintains a humidity level of 83%. In contrast, February is colder, with temperatures varying from -7°C (19°F) to a maximum of 17°C (62°F), yielding a lower average temperature of 4°C (40°F). February experiences higher precipitation levels at 205 mm (8.1 in) over 20 days, coupled with a slightly higher humidity of 84%. For more details on February weather, visit Saint Helens weather in February.
April generally presents a more variable weather pattern compared to March, as the temperature range widens and averages rise. While March has cooler temperatures with a minimum of -3°C (27°F) and an average of 7°C (45°F), April features slightly milder conditions, with a minimum of -1°C (30°F) and an average of 10°C (51°F). However, April also experiences a higher maximum temperature of 29°C (85°F), suggesting more warm days. Precipitation is common in both months, with March recording 163 mm (6.4 in) over 18 days and April showing 140 mm (5.5 in) over 16 days, indicating that while April has slightly less precipitation, it still remains a reasonably wet month. The humidity remains relatively stable, slightly higher in March at 85% compared to April’s 83%. For more detailed insights, check out Saint Helens weather in March.
April and May exhibit notable differences in weather patterns, with May generally offering milder conditions. In April, temperatures can dip as low as -1°C (30°F), while the average is around 10°C (51°F), peaking at 29°C (85°F). The month sees significant precipitation, totaling 140 mm (5.5 in) over 16 days, maintaining a high humidity level of 83%. In contrast, May starts off warmer with a minimum temperature of 3°C (37°F) and an average of 14°C (57°F), reaching a maximum of 32°C (90°F). Additionally, May experiences less rainfall, accumulating 73 mm (2.9 in) over just 11 days, while humidity remains steady at 83%. For more specific details, check out Saint Helens weather in May.
April and June showcase distinct weather patterns, reflecting the transition from spring to summer. In April, temperatures vary significantly, with a minimum of -1°C (30°F) and a maximum of 29°C (85°F), leading to an average of 10°C (51°F). This month also sees considerable precipitation, totaling 140 mm (5.5 in) over 16 days, contributing to a high humidity level of 83%. In contrast, June brings warmer conditions, with a minimum temperature of 6°C (43°F), an average of 17°C (63°F), and a striking maximum of 45°C (113°F). Rainfall decreases significantly to 62 mm (2.5 in) across just 9 days, while humidity remains constant at 83%. For more detailed insights, you can explore Saint Helens weather in June.
When comparing the weather in April and July, the differences are quite striking. April experiences a wider range of temperatures, with a minimum of -1°C (30°F) and a maximum of 29°C (85°F), averaging around 10°C (51°F). This month also sees considerable precipitation, with 140 mm (5.5 in) falling over 16 days, leading to higher humidity levels at 83%. In contrast, July offers much warmer temperatures, ranging from a minimum of 8°C (46°F) to a scorching maximum of 37°C (99°F), with an average of 20°C (68°F). Precipitation is minimal in July, totaling just 9 mm (0.3 in) across only 2 days, and humidity levels remain relatively consistent at 82%. For a more detailed overview of the July weather, you can check Saint Helens weather in July.
April and August present contrasting weather conditions. In April, temperatures can drop as low as -1°C (30°F) with an average of 10°C (51°F) and a maximum reaching 29°C (85°F). The month is also characterized by significant rainfall, with approximately 140 mm (5.5 in) spread over 16 days, and high humidity at 83%. In stark contrast, August boasts milder nighttime temperatures starting at 8°C (47°F) and an average of 20°C (69°F), while the mercury can soar to a scorching 39°C (102°F) during the day. Precipitation in August is minimal, with only 11 mm (0.4 in) falling over just 2 days, resulting in a lower humidity level of 74%. For more specific details about August weather, you can refer to Saint Helens weather in August.
April and September present contrasting weather patterns, each with its own unique characteristics. In April, temperatures can range from a chilly -1°C (30°F) at night to a warm 29°C (85°F) during the day, with an average of 10°C (51°F). This month is marked by high humidity at 83% and considerable precipitation, totaling 140 mm (5.5 in) over about 16 days. In contrast, September enjoys milder temperatures, with lows around 6°C (43°F) and highs peaking at 35°C (95°F), averaging a comfortable 17°C (63°F). The month is drier, with only 90 mm (3.6 in) of precipitation and rain falling on just 9 days, along with lower humidity at 71%. For more details about September weather, you can check Saint Helens weather in September.
April and October present a transition in weather, both showcasing mild temperatures yet distinct characteristics. In April, temperatures range from a chilly -1°C (30°F) to a warm 29°C (85°F), with an average of 10°C (51°F), while October exhibits slightly cooler temperatures, featuring a minimum of -2°C (29°F) and a maximum of 26°C (78°F), averaging 11°C (52°F). Precipitation is notable in both months, with April receiving 140 mm (5.5 in) over 16 days compared to October's 149 mm (5.9 in) over 13 days. Humidity levels are also comparable, with April at 83% and October at 81%. For more specific insights, you can check out Saint Helens weather in October.
April and November present contrasting yet intriguing weather patterns. In April, temperatures range from a chilly minimum of -1°C (30°F) to a warm maximum of 29°C (85°F), with an average of 10°C (51°F). The month sees about 140 mm (5.5 in) of precipitation over 16 days, accompanied by a high humidity level of 83%. In contrast, November is colder overall, with temperatures dipping to a minimum of -3°C (27°F) and a maximum of 18°C (64°F), averaging at 7°C (46°F). It experiences higher rainfall at 209 mm (8.2 in) across 18 days and slightly increased humidity at 87%. For a deeper look into November's climate specifics, check out Saint Helens weather in November.
April and December showcase significantly different weather patterns. In April, temperatures range from a minimum of -1°C (30°F) to a maximum of 29°C (85°F), with an average of 10°C (51°F). Precipitation in April is moderate at 140 mm (5.5 in) over 16 days, while humidity averages around 83%. In contrast, December experiences colder conditions, with temperatures ranging from a low of -5°C (23°F) to a high of 15°C (59°F) and an average of 5°C (41°F). Additionally, December sees more precipitation at 224 mm (8.8 in) spread over 20 days, and a slight increase in humidity at 87%. For a more detailed look at December weather, you can check Saint Helens weather in December.
April in Saint Helens marks a notable transition in weather as spring takes hold, characterized by a blend of mild temperatures and increased precipitation. Unlike the chill of winter or the sweltering heat of summer, April offers a refreshing average temperature that gently nudges above 10°C, bringing with it the promise of blooming nature. However, residents should prepare for frequent rainy days, as 16 days of precipitation contribute to a high humidity level of 83%, creating a lush and vibrant landscape. This unique combination of warmth and moisture distinguishes April from other months, inviting both adventurers and nature enthusiasts to revel in the renewal of the season. For a more detailed insight into what to expect throughout the year, visit Saint Helens Climate.