April Weather in Rainier, United States

Last updated: February 24, 2025

April in Rainier, United States, showcases a dynamic climate as temperatures elegantly fluctuate, reaching a maximum of 24°C (75°F) while averaging a pleasant 10°C (50°F). However, the month can also bring a chill, with minimum temperatures diving to -1°C (31°F). This transitional period is marked by significant precipitation, totaling 116 mm (4.6 in) over approximately 15 days, underscoring the region’s vibrant spring characteristics. Coupled with an 83% humidity, the weather in April creates a refreshing atmosphere, perfect for appreciating the blossoming landscape and the unique charm of Rainier.

April Temperature in Rainier

In April, temperatures in Rainier, United States begin to show a noticeable upward trend as spring takes hold. The minimum temperature hovers around -1°C (31°F), while the average settles at a comfortable 10°C (50°F), heralding the end of winter’s chill. With maximum temperatures reaching up to 24°C (75°F), outdoor activities become increasingly appealing. This month marks a significant shift from the cooler temperatures experienced in the preceding months, with April's warmth paving the way for the balmy days of May and beyond. As nature awakens, the rising temperatures beckon locals and visitors alike to embrace the vibrant spring surroundings.

April Weather in Rainier: Daily Temperature Highs, Lows, and Averages

The chart illustrates April temperature patterns in Rainier, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec424145505661656661524641
Data source: Temperature data for Rainier generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

April Precipitation in Rainier

April in Rainier, United States, marks a noticeable shift in precipitation as spring unfolds. With an average of 116 mm (4.6 in) of rain over 15 days, April experiences a decline from the wetter months preceding it, such as January and February, which deliver 185 mm (7.3 in) and 163 mm (6.4 in) respectively. This trend of decreasing precipitation continues into May, where only 62 mm (2.5 in) of rain is recorded, indicating a transition toward drier summer months. Interestingly, while April’s rainfall is notable, it is significantly less than the peak wet months and paves the way for the lighter showers of late spring, making it a critical period for rejuvenating the blooming landscape before the dry heat sets in.

April Precipitation Trends in Rainier

The chart displays monthly precipitation patterns in Rainier, with values for each month alongside April's data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how April's conditions compare to those of other months.
JanFebMarAprMayJunJulAugSepOctNovDec1851631311166252101385134182199
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in Rainier

As spring unfolds in Rainier, United States, April brings a slight dip in humidity, averaging 83%, compared to the higher levels seen in the preceding months. Following a steady trend from the winter months, which hovered around 86% in January and 84% in February, April's humidity begins to signal the transition toward drier conditions. Although it remains slightly elevated compared to the upcoming summer months, which feature a notable decline, April stands out as a bridge between the wet chill of winter and the warmer, less humid days of summer. This gradual decrease sets the stage for the more comfortable conditions that characterize the season ahead.

April Average Humidity in Rainier

This chart illustrates the average monthly humidity levels in Rainier, with April's data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, allowing you to see how April's humidity levels compare to other months.
JanFebMarAprMayJunJulAugSepOctNovDec86%84%85%83%84%84%82%73%74%83%86%87%
Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in Rainier

As April arrives in Rainier, the UV Index climbs to 6, marking a notable shift to a high exposure category with a reduced burn time of just 25 minutes. This trend signals the beginning of warmer weather, making it crucial to stay vigilant about sun protection. Compared to earlier months, where the UV Index was lower—ranging from 2 in January to 5 in March—April heralds the start of a more intense sun exposure season that will escalate further into the summer months, peaking at 9 in both June and July. As the days grow longer and brighter, locals are encouraged to be proactive about their skin health by checking the Rainier UV Index for daily updates, ensuring they enjoy the sun safely.

Maximum UV Index Levels in Rainier for April

The chart shows the monthly maximum UV Index (UVI) for Rainier in April, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues.
JanFebMarAprMayJunJulAugSepOctNovDec235689987531
Data source: Rainier April UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

April Sunshine in Rainier

April in Rainier, United States, ushers in a blooming brightness with 227 hours of sunshine, a noticeable increase from the 202 hours seen in March. This upward trend continues as the days grow longer, paving the way for the vibrant warm months ahead. Following April, May dazzles with 299 hours of golden rays, while June reaches a splendid 312 hours, peaking at 364 hours in July. This gradual ascent in sunlight underscores the area's transition from winter's dimness to the lively, sun-drenched days of summer, creating a welcoming atmosphere that invites both residents and visitors to embrace the outdoors. As autumn approaches, however, the hours begin to taper, reflecting the cyclical rhythm of nature and reminding us to savor every sunlit moment.

Monthly Sunshine Duration in Rainier: April Highlighted

The April sunshine duration represents the total number of hours Rainier experiences direct sunlight during the month of April, excluding cloudy or obstructed periods. This chart compares the sunshine duration of April with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec81h122h202h227h299h312h364h331h254h196h116h93h
Data source: Rainier April Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Rainier During April

As spring unfolds in Rainier, the likelihood of sunny weather sees a significant uptick in April, with 48% chance of sunshine—an encouraging shift from the previous months. After the relatively dull skies of winter, where January and February lingered around 13% and 20%, respectively, March brings a mild improvement to 31%. This upward trend culminates in April, positioning it as a pivotal month for sun seekers. The brighter days continue into May, but with a drop to 35%, and are followed by the peak of summer in June and July, where sunny probabilities escalate to 55% and 62%, respectively. Thus, April stands out as a threshold month, hinting at the vibrant weather that lies ahead.

Percentage of Sunny Days in April in Rainier

The chart illustrates the percentage of sunny days in Rainier throughout the year, with April highlighted. It highlights the variation in sunshine across each month and provides an overview of the typical frequency of sunny days, offering insights into how often Rainier experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec13%20%31%48%35%55%62%50%36%23%15%11%
Data source: Rainier April chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Rainier in April

As spring unfolds in Rainier, United States, April marks a significant shift in daylight hours, with an impressive 13 hours of sunshine illuminating the days. This increase follows the steady rise from 11 hours in March, showcasing a trend of heightened daylight that continues into the warmer months. As we transition to May, daylight extends even further to 15 hours, offering longer evenings and vibrant outdoor opportunities. This gradual escalation from the shorter days of winter—where January and December see only 8 hours—highlights the region's transition from slumbering winters to the lively, sun-kissed days of spring and early summer. With each passing month, residents can revel in the growing radiance and warmth, embracing the natural beauty that daylight brings.

Average Daylight Hours in Rainier for April

The chart illustrates the variation in daylight duration in Rainier throughout the year, with April highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec8h 59m10h 18m11h 57m13h 38m15h 5m15h 49m15h 24m14h 7m12h 29m10h 48m9h 19m8h 33m
Data source: Rainier daylight hours, calculated by summing the hours between sunrise and sunset for each day.

April Winds in Rainier

In April, the winds in Rainier, United States, tend to mellow, averaging 2.5 m/s (6 mph), consistent with the gentle breezes of the preceding months. This slight dip in wind speed from March's average of 2.6 m/s suggests a transition towards calmer spring days. As the year progresses, a subtle trend emerges, with wind speeds gradually decreasing during the late spring and summer months, reaching their lowest at 2.3 m/s (5 mph) in July. However, as the leaves transition into fall, wind speeds begin to increase once again, hinting at the seasonal shifts ahead. Thus, April's winds carry the quiet promise of spring, setting the stage for the warmer months to come while suggesting a rhythmic cycle of change in Rainier's atmospheric dance.

Average April Wind Speed in Rainier

The chart displays monthly wind speed patterns in Rainier, with values for each month shown alongside April's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how April's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec2.73.42.62.5 m/s2.52.42.32.62.52.93.23.3
Data source: Rainier April wind data, generated using information from the Copernicus Climate Change Service.

How April Weather in Rainier Compares to Other Months

The weather in Rainier 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 Rainier and find detailed weather information for every month.

April and January exhibit notably contrasting weather patterns. In April, temperatures range from a minimum of -1°C (31°F) to a pleasant maximum of 24°C (75°F), with an average temperature of 10°C (50°F). Precipitation in April totals 116 mm (4.6 in) over 15 days, accompanied by a humidity level of 83%. In contrast, January features colder temperatures, with a minimum of -6°C (22°F) and a maximum of 14°C (57°F), averaging at 5°C (42°F). This month experiences more rainfall, accumulating 185 mm (7.3 in) over 17 days, while maintaining a slightly higher humidity of 86%. For a deeper understanding of January's weather patterns, you can explore Rainier weather in January.

April generally experiences milder temperatures compared to February, with average highs reaching up to 24°C (75°F) as opposed to February's maximum of 14°C (58°F). While February tends to have a lower average temperature and a more significant amount of precipitation at 163 mm (6.4 in) over 17 days, April still sees substantial rainfall with 116 mm (4.6 in) across 15 days. Interestingly, both months have similar humidity levels, with April at 83% and February slightly higher at 84%. For a closer look at February weather patterns, you can visit Rainier weather in February.

In comparing the weather patterns of April and March, April generally experiences milder average temperatures, with an average of 10°C (50°F) compared to March's average of 7°C (45°F). Both months have similar minimum temperatures of -1°C (31°F) and maximum temperatures that are quite close, with April peaking at 24°C (75°F) and March at 23°C (73°F). Precipitation levels are slightly lower in April, totaling 116 mm (4.6 in) over 15 days, compared to March's 131 mm (5.2 in) across 17 days. Humidity in April is also slightly less at 83%, while March maintains a higher humidity level of 85%. For a deeper look into March weather, you can visit Rainier weather in March.

April and May exhibit distinct differences in weather patterns. In April, temperatures range from a chilly minimum of -1°C (31°F) to a pleasant maximum of 24°C (75°F), with an average of 10°C (50°F). The month is relatively wet, experiencing precipitation on 15 days and accumulating 116 mm (4.6 in) of rain, all while maintaining a high humidity level of 83%. In contrast, May offers warmer conditions with minimum temperatures rising to 5°C (41°F) and maximum temperatures reaching 30°C (86°F), resulting in a more comfortable average of 13°C (56°F). Precipitation decreases to 62 mm (2.5 in) over 11 days, and humidity remains slightly elevated at 84%. For more details on the weather specific to May, you can check Rainier weather in May.

April and June exhibit notable differences in weather patterns, reflecting the transition from spring to summer. In April, temperatures fluctuate from a chilly minimum of -1°C (31°F) to a mild maximum of 24°C (75°F), with an average temperature of 10°C (50°F). The month is characterized by significant precipitation, totaling 116 mm (4.6 in) over about 15 days, contributing to a high humidity level of 83%. In contrast, June showcases warmer conditions, with minimum temperatures rising to 7°C (45°F) and maximum temperatures peaking at an impressive 38°C (101°F), yielding an average of 16°C (61°F). Precipitation is markedly less during June, accumulating only 52 mm (2.1 in) across 8 days, while humidity remains relatively stable at 84%. For a detailed look at the weather conditions in June, you can visit Rainier weather in June.

April and July present stark contrasts in weather, reflecting the transition from spring to summer. In April, temperatures can drop as low as -1°C (31°F) at night, with an average of 10°C (50°F) during the day, while reaching a maximum of 24°C (75°F). However, this month is quite rainy, with 116 mm (4.6 in) of precipitation spread over 15 days and high humidity levels at 83%. In comparison, July offers much warmer conditions with minimum temperatures around 10°C (50°F) and average highs of 33°C (91°F). The month sees significantly less rain, totaling just 10 mm (0.4 in) over only 2 days, while humidity remains relatively stable at 82%. For more details on July weather, you can check out Rainier weather in July.

April and August present quite contrasting weather patterns. In April, temperatures range from a chilly minimum of -1°C (31°F) to a pleasant maximum of 24°C (75°F), with an average of 10°C (50°F). The month is quite wet, featuring a total precipitation of 116 mm (4.6 in) over 15 days, contributing to a high humidity level of 83%. In stark contrast, August experiences warmer temperatures, with a minimum of 10°C (50°F), an average of 19°C (66°F), and soaring to a maximum of 34°C (94°F). August is relatively dry, with only 13 mm (0.5 in) of precipitation over just 3 days, and the humidity drops to a more comfortable 73%. For those looking to explore the region during this summery month, more information can be found in this link: Rainier weather in August.

April and September exhibit notable differences in weather patterns. April tends to be cooler, with a minimum temperature of -1°C (31°F) and an average of 10°C (50°F), characterized by higher humidity at 83%. It often experiences more precipitation, totaling 116 mm (4.6 in) over approximately 15 days. In contrast, September offers a warmer climate, with temperatures ranging from a minimum of 6°C (43°F) to a maximum of 30°C (87°F) and a lower average humidity of 74%. This month sees less rainfall, averaging 85 mm (3.4 in) over about 10 days. For those interested in specific details about September weather, you can visit Rainier weather in September.

April and October showcase similar temperature ranges, with both months featuring a maximum of 24°C (75°F). However, April tends to be slightly cooler overall, with an average temperature of 10°C (50°F) compared to October's 11°C (52°F). While both months experience relatively high humidity at 83%, April sees a bit more precipitation, totaling 116 mm (4.6 in) over 15 days, compared to October's 134 mm (5.3 in) over 13 days. For specific details on weather patterns during October, you can check out Rainier weather in October.

In comparing the weather between April and November, it is evident that both months experience significant precipitation, with November receiving more at 182 mm compared to April's 116 mm. While April offers a wider range of temperatures, with a maximum of 24°C (75°F) and a minimum of -1°C (31°F), November's temperatures are more consistent, peaking at 17°C (62°F) and rarely dipping below 0°C (32°F). Moreover, the humidity levels are quite similar, with November slightly higher at 86% compared to April's 83%. For a deeper insight into the weather patterns during this month, you can explore Rainier weather in November.

April and December present contrasting weather conditions. In April, temperatures range from a minimum of -1°C (31°F) to a maximum of 24°C (75°F), with an average of 10°C (50°F). This month experiences about 116 mm (4.6 in) of precipitation over 15 days, accompanied by a humidity level of 83%. In contrast, December features cooler temperatures, with a minimum of -6°C (22°F) and a maximum of 13°C (56°F), averaging at 5°C (42°F). Precipitation increases significantly to 199 mm (7.8 in) over 18 days, and the humidity rises slightly to 87%. For a closer look at the weather specifics during this winter month, you can explore Rainier weather in December.

Compare Rainier's Climate with Cities Worldwide

Conclusion: What to Expect From April Weather in Rainier

April in Rainier marks a significant transition from the chill of winter to the burgeoning warmth of spring. With temperatures averaging around 10°C, this month offers a refreshing reprieve while also showcasing a notable increase in precipitation. Although you might encounter about 15 days of rain, this moisture fuels the stunning blooms and lush greenery just beginning to awaken. The high humidity at 83% adds to the invigorating ambiance, making April distinctly vibrant compared to the cooler, drier months preceding it. For a comprehensive overview of how April's weather fits into the overall climate, visit Rainier Climate.