Last updated: February 24, 2025
In April, Eureka, United States, experiences a gentle transition into spring, characterized by a maximum temperature of 18°C (65°F) and an average of 10°C (51°F). Despite the mild conditions, residents should prepare for periodic rainfall, totaling 101 mm (4.0 in) over approximately 10 days, contributing to a humidity level of 82% that adds a refreshing touch to the air. This blend of cool temperatures and frequent showers creates a vibrant atmosphere, ushering in the blossoming sights and scents of the season.
In Eureka, United States, April marks a gentle transition as spring fully embraces the landscape. Temperatures start to warm, with minimums rising to 5°C (41°F) and averaging around 10°C (51°F), while the daytime maximums reach a comfortable 18°C (65°F). This uptick reflects the gradual shift from the cooler months of winter and early spring, as seen in March's temperatures, which lingered around 3°C to 17°C (38°F to 63°F). Notably, April's climate fosters a sense of renewal, with a slight increase in warmth setting the stage for even warmer days ahead in late spring, indicating a pattern where temperatures steadily rise towards the summer months. Overall, April serves as a refreshing prelude to the vibrant warmth that characterizes Eureka's later seasons, making it an inviting time for outdoor activities and exploration.
April in Eureka, United States marks a noteworthy transition in precipitation patterns, as total rainfall dips to 101 mm (4.0 in), representing a significant reduction compared to the earlier months like January and February. This drop in precipitation is accompanied by a decrease in rainy days, with only 10 days of rain recorded, contrasting sharply with the more frequent downpours earlier in the year. The trend indicates that as spring progresses, the region often enjoys a slight reprieve from the heavy winter rains, paving the way for drier months ahead. May follows with an even lower precipitation total of 60 mm (2.4 in), suggesting that while April still experiences a fair amount of moisture, the region is gradually shifting towards its drier summer season.
April in Eureka brings a slight but significant dip in humidity, settling at 82%. This marks a trend of decreasing moisture that begins in the earlier months, transitioning from a high of 86% in January to a more comfortable level as spring progresses. While April is notably drier than the preceding months, it still retains a relatively humid atmosphere compared to the summer months. As the year unfolds, humidity will continue to decrease, reaching a low of 60% in August before climbing again in the fall. This pattern underscores Eureka's coastal climate, where moisture levels ebb and flow with the changing seasons, influencing the region's lush landscapes and vibrant ecology.
As spring unfolds in Eureka, the UV Index escalates, signaling a sharp increase in sun intensity. In April, the UV Index reaches 8, placing it in the very high exposure category, which means that unprotected skin can start to burn in just 15 minutes. This upward trend is indicative of the transition from the moderate levels observed in January and February to the high levels seen in March. As we move further into the season, May and June present even greater challenges with indices peaking at 10 and 11, respectively. It's a timely reminder for residents and visitors alike to embrace sun safety measures. For more information, visit the Eureka UV Index.
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As spring unfolds in Eureka, April shines bright with 274 hours of sunshine, marking a delightful peak in daylight compared to the earlier months of the year. This increase showcases a clear upward trend in sunny days, amplifying the vibrant energy of the season. Following April's promise of warmth and brightness, May takes the lead with an impressive 334 hours, heralding the full swing of summer. The steady accumulation of sunshine from January’s 118 hours to April’s richness reflects the shifting patterns of the seasons, as each month builds anticipation for the sunnier days ahead. In contrast, the waning daylight in the latter part of the year, especially from September onward, serves as a gentle reminder of the cycles of nature, making the spring and early summer months in Eureka a cherished time for those who thrive in the sun.
In Eureka, the likelihood of sunny weather shows a clear upward trend as spring approaches, with April boasting a 49% chance of sunshine. This slight dip from March's 51% highlights a transition to the more stable sunny days of late spring and summer, where the chance of sun peaks at 60% in August and 62% in September. While April offers considerable potential for clear skies, it follows a pattern of gradual increase, making it evident that sunnier days are on the horizon. As winter fades, Eura residents can look forward to the promise of brighter, warmer weather in the months ahead.
As spring unfolds in Eureka, April brings a remarkable increase in daylight, with 13 hours of sunshine illuminating the days—a substantial jump from the 11 hours experienced in March. This upward trend in daylight hours signifies the transition towards longer days, setting the stage for the warm embrace of summer. Following April, May continues this trend with 14 hours of daylight, highlighting the vibrant energy of the season. In stark contrast, the darker winter months of January and February, with just 9 and 10 hours of daylight respectively, feel a world away as Eureka basks in the burgeoning light. Thus, the gradual extension of daylight from winter to spring not only enhances the beauty of the landscape but also uplifts the spirit of the community.
In Eureka, United States, the April winds bring a distinct shift in the seasonal breeze, showing a notable drop from the previous months. With an average wind speed of 3.9 m/s (9 mph), April is one of the calmer months, following a steady increase in wind speed from January to March. This decline contrasts sharply with the more blustery earlier months, hinting at a transition into the lighter winds of late spring. As the year progresses, wind conditions remain relatively gentle, with May experiencing a slight uptick, but overall, April stands out for its tranquil charm amidst the ebb and flow of the seasonal winds.
The weather in Eureka 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 Eureka and find detailed weather information for every month.
In comparing the weather of April and January, both months exhibit relatively mild temperatures, with January showing a minimum of 4°C (39°F) and an average of 10°C (50°F), while April has slightly warmer conditions with a minimum of 5°C (41°F) and a higher maximum of 18°C (65°F). Precipitation is notably higher in January, totaling 211 mm (8.3 in) over 15 days, compared to April's 101 mm (4.0 in) over 10 days. Humidity levels are similar, with January at 86% and April at 82%, indicating a slightly more humid atmosphere in January. For a closer look at January conditions, check out Eureka weather in January.
When comparing the weather in February and April, we notice that both months have similar temperature ranges, with February featuring a minimum temperature of 3°C (37°F) and a maximum of 19°C (66°F), while April's temperatures vary from a minimum of 5°C (41°F) to a maximum of 18°C (65°F). However, April tends to be wetter, receiving 101 mm (4.0 in) of precipitation over 10 days compared to February's 200 mm (7.9 in) across 14 days, indicating that February is typically the rainier month. Additionally, humidity levels are slightly higher in February at 85%, compared to 82% in April. For more detailed information about February weather, you can check out Eureka weather in February.
In comparing the weather between March and April, it is evident that April exhibits slightly warmer temperatures, with a minimum of 5°C (41°F) and an average of 10°C (51°F), contrasted with March's minimum of 3°C (38°F) and average of 9°C (49°F). While April's maximum temperature reaches 18°C (65°F), March's maximum is slightly lower at 17°C (63°F). Precipitation levels also show a notable difference, with April receiving 101 mm (4.0 in) over 10 days, whereas March has higher precipitation of 164 mm (6.5 in) over 15 days. Additionally, humidity levels are marginally lower in April at 82%, compared to March's 85%. For more detailed insights on March weather, you can visit Eureka weather in March.
April and May showcase a gradual transition in weather conditions. In April, temperatures range from a minimum of 5°C (41°F) to a maximum of 18°C (65°F), with an average temperature of 10°C (51°F). The month is also characterized by higher precipitation, totaling 101 mm (4.0 in) over 10 days, and relatively high humidity at 82%. In contrast, May experiences slightly warmer temperatures, with minimums of 6°C (43°F) and maximums of 17°C (63°F), and an average of 11°C (52°F). Precipitation decreases significantly to 60 mm (2.4 in) over just 6 days, and humidity remains comparable at 81%. This shift indicates a gradual drying trend as spring progresses. For more specifics on weather conditions in May, you can check Eureka weather in May.
April tends to be cooler and wetter compared to June, with temperatures ranging from a minimum of 5°C (41°F) to a maximum of 18°C (65°F) and an average of 10°C (51°F). This month also sees considerable precipitation, with 101 mm (4.0 in) over approximately 10 days and humidity levels around 82%. In contrast, June offers milder temperatures, fluctuating between a minimum of 9°C (48°F) and a maximum of 23°C (74°F), with an average of 13°C (55°F). This month experiences significantly less rainfall, with only 23 mm (0.9 in) occurring over just 4 days, and slightly lower humidity at 79%. For a detailed look at the weather in Eureka during June, you can check Eureka weather in June.
In April, the weather is characterized by cooler temperatures, with minimums around 5°C (41°F) and average highs reaching 18°C (65°F). This month also experiences considerable rainfall, with 101 mm (4.0 in) of precipitation over approximately 10 days and a high humidity level of 82%. In contrast, July sees warmer weather, with minimums at 9°C (49°F) and average highs of 19°C (66°F), but it is much drier, receiving only 7 mm (0.3 in) of precipitation over just one day. The humidity also decreases to 70%, making July a more comfortable month overall. For a detailed look at the weather, check out Eureka weather in July.
In comparing the weather of April and August, we observe a notable shift in temperature and precipitation patterns. April experiences a wider range of temperatures, with minimums around 5°C (41°F) and maximums reaching 18°C (65°F), while August is generally warmer, with temperatures ranging from a minimum of 10°C (51°F) to a maximum of 23°C (74°F). Additionally, April is characterized by high humidity at 82% and frequent rainy days, receiving approximately 101 mm (4.0 in) of precipitation over 10 days. In contrast, August boasts much drier conditions, with only 7 mm (0.3 in) of precipitation recorded and no rainy days, alongside a lower humidity level of 60%. For more details about August weather, you can check Eureka weather in August.
April and September offer quite different weather experiences. In April, temperatures range from a chilly minimum of 5°C (41°F) to a comfortable maximum of 18°C (65°F), with an average of around 10°C (51°F). This month is characterized by significant precipitation, with about 101 mm (4.0 in) falling over approximately 10 days, and the humidity remains high at 82%, creating a damp atmosphere.
In contrast, September boasts warmer temperatures, with a minimum of 10°C (50°F) and a maximum reaching up to 29°C (84°F), averaging around 15°C (59°F). Precipitation is notably lower, with only 27 mm (1.0 in) over just 3 days, and the humidity drops to 62%, resulting in a much drier and more comfortable climate. For more specific insights about the weather in September, you can check Eureka weather in September.
April and October exhibit distinct weather patterns, reflecting the transition from spring to autumn. In April, temperatures range from a minimum of 5°C (41°F) to a maximum of 18°C (65°F), with an average of about 10°C (51°F). The month experiences considerable rainfall, totaling 101 mm (4.0 in) over approximately 10 days, and the humidity is notably high at 82%. In contrast, October offers milder temperatures, with a minimum of 8°C (46°F) and a maximum of 22°C (72°F), averaging around 13°C (55°F). Precipitation decreases significantly to 53 mm (2.1 in) over just 5 days, and humidity levels drop to 72%. For a deeper dive into weather specifics, you can refer to this link: Eureka weather in October.
April and November exhibit similar temperature ranges, with April averaging 10°C (51°F) compared to November's 11°C (52°F). Both months experience a mix of mild weather, with maximum temperatures reaching 18°C (65°F) in April and 19°C (66°F) in November. However, November tends to be slightly wetter, receiving 117 mm (4.6 in) of precipitation compared to April's 101 mm (4.0 in), and has a slightly higher humidity level of 87% versus April's 82%. For more details about November weather specifically, you can check this link: Eureka weather in November.
April and December in Eureka exhibit similar average temperatures, hovering around 10°C (50°F), with both months experiencing mild conditions. However, April tends to be slightly warmer, with maximum temperatures reaching 18°C (65°F) compared to December's high of 17°C (63°F). Precipitation is notably higher in December, accumulating 161 mm (6.3 in) over approximately 13 days, while April sees 101 mm (4.0 in) of rain over 10 days. Additionally, December's humidity is slightly elevated at 86% compared to April's 82%. For more details about December weather in Eureka, you can visit Eureka weather in December.
April in Eureka presents a delightful transition into spring, characterized by mild temperatures and notable humidity. With an average of 10°C, the weather is a refreshing change from the cooler winter months, although it can occasionally feel brisk with nighttime lows dipping to 5°C. This month also sees a moderate amount of precipitation, with about 101 mm falling over 10 days, making it one of the wetter times of the year. Overall, April's weather is marked by a blend of freshness and the vibrant essence of spring, offering a unique experience distinct from other months. For more detailed insights on what to expect throughout the year, check out the Eureka Climate.