April Weather in Washington, United States

Last updated: February 24, 2025

April in Washington, United States, presents a dynamic tapestry of weather, with temperatures fluctuating from a pleasant maximum of 32°C (91°F) to a chilly minimum of -2°C (28°F). The average temperature sits at 14°C (57°F), providing a mild backdrop for the onset of spring. While residents and visitors enjoy the awakening of nature, they should prepare for around 100 mm (4.0 in) of precipitation accumulating over 11 days, contributing to a humidity level of 81% that marks this month as both refreshing and occasionally damp. As the city transitions into warmer seasons, April's weather embodies the versatility of spring, urging everyone to embrace both sunshine and showers.

April Temperature in Washington

In April, Washington, United States begins to shed its winter chill, exhibiting a noticeable warming trend as temperatures rise. With a minimum of -2°C (28°F) and an average of 14°C (57°F), the month serves as a gentle transition into spring. The maximum temperature can reach an inviting 32°C (91°F), hinting at the warmer days ahead. Compared to the preceding months, April brings significant increases in both average and maximum temperatures, moving away from the frosty depths of winter. The gradual climb in temperature, complemented by blossoming flora, makes April a vibrant time, setting the stage for the forthcoming warmth of May and beyond.

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

The chart illustrates April temperature patterns in Washington, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec374146566675807772624740
Data source: Temperature data for Washington 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 Washington

In April, Washington experiences a notable increase in precipitation, reaching an impressive 100 mm (4.0 in) over 11 days of rainfall. This uptick marks a continuing trend from March, where the state received 87 mm (3.4 in) in 10 days, hinting at the transition from the cooler months to the wetter, spring period. As nature awakens, April's rainfall sets the stage for abundant growth, exceeding January and March’s totals, and foreshadowing a larger volume of rain in May, projected at 127 mm (5.0 in). With April leading the way in both volume and frequency, it plays a crucial role in replenishing water sources and nurturing the lush landscapes that define the region.

April Precipitation Trends in Washington

The chart displays monthly precipitation patterns in Washington, 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.
JanFebMarAprMayJunJulAugSepOctNovDec619887100127118157140951058193
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in Washington

In April, humidity levels in Washington, United States, reach about 81%, marking a slight decrease from the preceding months of winter and early spring, which hovered around 83%. This trend reflects the gradual transition into drier conditions, as the city moves toward the warmer months. Interestingly, as the year progresses, humidity continues to decline, reaching its lowest point in the summer months, with July and August recording 74% and 72%, respectively. This pattern illustrates the typical seasonal shift in Washington's climate, where the humid chills of winter give way to the more moderate conditions experienced as spring unfolds.

April Average Humidity in Washington

This chart illustrates the average monthly humidity levels in Washington, 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.
JanFebMarAprMayJunJulAugSepOctNovDec84%83%83%81%78%79%74%72%75%81%85%84%
Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in Washington

In April, the UV Index in Washington, United States, surges to 9, classifying it in the very high exposure category with a burn time of just 15 minutes. This significant increase from the previous months mirrors the broader trend of intensifying UV radiation as spring unfolds. After a moderation in January and February, the index escalates from 3 to 5 and then hits 7 in March, paving the way for April's drastic rise. As summer approaches, the UV Index remains elevated, peaking at 10 in May and June, highlighting the importance of sun safety during these months. For further details, check the Washington UV Index.

Maximum UV Index Levels in Washington for April

The chart shows the monthly maximum UV Index (UVI) for Washington 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.
JanFebMarAprMayJunJulAugSepOctNovDec357910101098753
Data source: Washington 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 Washington

As April unfolds in Washington, the city basks in 259 hours of glorious sunshine, mirroring the vibrant energy of spring. This month marks a continuation of the upward trend in daylight hours, following the steady climb from March's 259 hours, signaling the end of winter's grip. As we gaze ahead to May, the days grow even longer, with an expected 281 hours of sunshine illuminating the blossoming landscapes. This gradual increase not only enriches the environment but also invites residents and visitors alike to embrace outdoor activities, making it a delightful transition into the season of warmth and renewal. With longer days ahead, April serves as a beautiful reminder of nature’s revival, setting the stage for the sun-drenched months to come.

Monthly Sunshine Duration in Washington: April Highlighted

The April sunshine duration represents the total number of hours Washington 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.
JanFebMarAprMayJunJulAugSepOctNovDec150h180h259h259h281h330h356h321h277h246h226h191h
Data source: Washington April Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Washington During April

As winter fades and spring emerges, April in Washington, United States, brings a 48% chance of sunny weather, marking a transition in the season. While this figure is slightly lower than the preceding month, March, which boasts a 52% chance, it still reflects an upward trend from the year's beginning. January's chances start at 45%, dropping to 28% in February, before gradually climbing back up. Comparing April to the months that follow, including May at 40% and June at 38%, it seems this month enjoys a brief moment of relatively promising weather. This indicates that while sunshine may be fleeting, it plays a crucial role in heralding the warmer days ahead.

Percentage of Sunny Days in April in Washington

The chart illustrates the percentage of sunny days in Washington 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 Washington experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec45%28%53%48%40%38%49%34%53%40%56%37%
Data source: Washington April chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Washington in April

As April arrives in Washington, the days begin to noticeably stretch, offering 13 hours of daylight, a significant increase from the 11 hours observed in March. This transition marks a vibrant shift towards spring, where sunlight becomes more abundant and invigorating, paving the way for the lush landscapes of May, which enjoys 14 hours of daylight. The gradual lengthening of days from the winter months of January and February, with only 9 and 10 hours respectively, sets the stage for this blossoming season. As the year progresses into the summer, Washingtonians bask in a peak daylight duration that remains consistent at 14 hours through June and July, before gradually tapering off in late summer and fall. This rhythmic pattern of daylight not only enhances the beauty of the region but also encourages outdoor activities and gatherings, celebrating the joys of spring and summer.

Average Daylight Hours in Washington for April

The chart illustrates the variation in daylight duration in Washington throughout the year, with April highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 46m10h 44m11h 58m13h 14m14h 18m14h 50m14h 32m13h 36m12h 23m11h 7m10h 1m9h 28m
Data source: Washington daylight hours, calculated by summing the hours between sunrise and sunset for each day.

April Winds in Washington

As April arrives in Washington, the average wind speed holds steady at 3.3 m/s (7 mph), matching the gentle breeze of March. This stability provides a refreshing touch to the early spring air, encouraging residents to step outside and savor the blooming landscapes. Notably, April marks the beginning of a gradual decline in wind speed leading into the warmer months, as May sees a slight dip to 2.8 m/s (6 mph). This trend suggests that as the season progresses, the winds will become less vigorous, allowing for a more tranquil outdoor experience as summer nears and people seek the calm in nature. The modestly consistent winds of April set the stage for enjoying the beauty of the nation’s capital while forecasting a serene shift into the summer season.

Average April Wind Speed in Washington

The chart displays monthly wind speed patterns in Washington, 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.
JanFebMarAprMayJunJulAugSepOctNovDec3.03.23.33.3 m/s2.82.52.21.92.62.82.92.8
Data source: Washington April wind data, generated using information from the Copernicus Climate Change Service.

How April Weather in Washington Compares to Other Months

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

April and January showcase distinct differences in weather patterns. In April, temperatures range from a minimum of -2°C (28°F) to a maximum of 32°C (91°F), with an average of 14°C (57°F). The month sees higher precipitation levels at 100 mm (4.0 in) over 11 days, contributing to a humid environment with an average humidity of 81%. In contrast, January is significantly colder, with temperatures dipping as low as -15°C (5°F) and averaging only 3°C (37°F) with a maximum of 22°C (71°F). Precipitation is lower, at 61 mm (2.4 in) over 8 days, with humidity slightly higher at 84%. For a more detailed look at January conditions, check out Washington weather in January.

April typically brings milder temperatures compared to February, with average highs reaching 14°C (57°F) and a maximum of 32°C (91°F), while February sees a colder average of 5°C (41°F) and peaks at 28°C (82°F). The humidity levels remain relatively consistent in both months, at 81% for April and 83% for February, although April tends to be warmer overall. While precipitation is similar in both months, with April receiving 100 mm (4.0 in) and February 98 mm (3.9 in), the conditions in February are significantly chillier. For more detailed information on February's weather, you can visit Washington weather in February.

In comparing the weather conditions of March and April, it is evident that April tends to be significantly warmer, with an average temperature of 14°C (57°F) compared to March's 8°C (46°F). The minimum temperatures in April are also milder, dropping to -2°C (28°F) versus March's colder -7°C (20°F). April experiences higher maximum temperatures as well, peaking at 32°C (91°F) compared to March's maximum of 28°C (83°F). Precipitation levels are slightly higher in April at 100 mm (4.0 in) over 11 days, compared to 87 mm (3.4 in) over 10 days in March, although humidity remains fairly consistent with April at 81% and March at 83%. For a more detailed look at March weather, visit Washington weather in March.

April and May exhibit notable differences in weather patterns. April typically experiences a wider temperature range, with a minimum of -2°C (28°F) and a maximum of 32°C (91°F), while May sees a milder minimum of 2°C (36°F) and a maximum of 34°C (94°F). The average temperature rises from 14°C (57°F) in April to 19°C (66°F) in May, indicating a transition toward warmer conditions. Additionally, both months witness substantial precipitation, with April receiving 100 mm (4.0 in) over 11 days and May experiencing slightly more with 127 mm (5.0 in) across 13 days. Despite May's increased rainfall, humidity remains relatively similar, with April at 81% and May at 78%. For more detailed insights, you can check Washington weather in May.

In comparing the weather between April and June, April experiences a wider temperature range, with minimums dipping as low as -2°C (28°F) and maximums reaching up to 32°C (91°F). While April has an average temperature of 14°C (57°F), it also sees significant precipitation, totaling 100 mm (4.0 in) over 11 days, coupled with high humidity levels at 81%. In contrast, June offers a more stable and warmer climate, with temperatures ranging from a minimum of 9°C (48°F) to a maximum of 36°C (98°F) and an average of 24°C (75°F). Although June has slightly higher precipitation at 118 mm (4.7 in) over 12 days, the humidity is marginally lower at 79%. For a more detailed look at the weather in June, you can visit Washington weather in June.

April and July showcase a stark contrast in weather characteristics. In April, temperatures range from a chilly minimum of -2°C (28°F) to a warm average of 14°C (57°F), with occasional peaks reaching up to 32°C (91°F). The month experiences significant precipitation of 100 mm (4.0 in) over approximately 11 days, coupled with a relatively high humidity of 81%. In contrast, July boasts much warmer temperatures with a minimum of 15°C (59°F), an average of 27°C (81°F), and maximums soaring to 38°C (101°F). While July sees higher overall precipitation at 157 mm (6.2 in) across 12 days, its humidity is lower at 74%, making the heat feel more intense. For more information, you can explore Washington weather in July.

April and August in Washington present a striking contrast in weather patterns. In April, temperatures range dramatically from a chilly minimum of -2°C (28°F) to a maximum of 32°C (91°F), with an average temperature of 14°C (57°F). This month sees significant rainfall, totaling 100 mm (4.0 in) over 11 days, accompanied by high humidity at 81%. In contrast, August enjoys much warmer temperatures, with a minimum of 14°C (58°F), an average of 25°C (77°F), and a peak of 37°C (99°F). Although it is relatively drier, August has increased precipitation totaling 140 mm (5.5 in) over 15 days, with humidity dropping to 72%. For more insights into the specifics of August weather, check out Washington weather in August.

April and September showcase distinct weather patterns, reflecting the transition of seasons. While April can experience chilly nights with temperatures dropping as low as -2°C (28°F), it also enjoys warmer daytime averages reaching 14°C (57°F) and peaks at 32°C (91°F). The month brings significant precipitation, with around 100 mm (4.0 in) over 11 days, contributing to a high humidity level of 81%. In contrast, September's weather is generally milder, starting with a minimum temperature of 5°C (42°F) and averaging 22°C (72°F), with maximum temperatures climbing to 36°C (97°F). Although it sees slightly less precipitation at 95 mm (3.8 in) over the same number of days, humidity drops to a more comfortable 75%. For a closer look at specific weather patterns in September, you can visit the following link: Washington weather in September.

In April, temperatures typically range from a minimum of -2°C (28°F) to a maximum of 32°C (91°F), with an average of 14°C (57°F). The month sees about 100 mm (4.0 in) of precipitation over approximately 11 days and maintains a high humidity level of 81%. In contrast, October experiences slightly milder temperatures, with minimums around 1°C (34°F) and maximums reaching 36°C (97°F), averaging 17°C (62°F). Precipitation increases marginally to 104 mm (4.1 in) over 9 days, while humidity remains consistent at 81%. For more detailed information, check out Washington weather in October.

April and November exhibit distinct weather patterns that reflect the transition between seasons. In April, temperatures range from a minimum of -2°C (28°F) to a maximum of 32°C (91°F), with an average of 14°C (57°F). The month experiences approximately 100 mm (4.0 in) of precipitation over about 11 days and maintains a humidity level of 81%. In contrast, November features cooler temperatures, with a minimum of -6°C (21°F), an average of 8°C (47°F), and a maximum of 25°C (78°F). Precipitation decreases to around 81 mm (3.2 in) across 7 days, while humidity rises slightly to 85%. This shift illustrates how April welcomes warmer, wetter spring weather, while November reflects the cooler, dryer conditions of late autumn. For more details on November weather specifically, check out Washington weather in November.

April and December present notably different weather patterns. In April, temperatures range from a minimum of -2°C (28°F) to a pleasant average of 14°C (57°F), peaking at a warm 32°C (91°F). The month typically experiences about 100 mm (4.0 in) of precipitation over 11 days, with humidity levels around 81%. In contrast, December sees colder conditions with temperatures ranging from a low of -10°C (13°F) to an average of 5°C (41°F), and a maximum of 20°C (69°F). Precipitation slightly decreases to 93 mm (3.7 in) over 9 days, with humidity slightly higher at 84%. For a more detailed look at December weather, visit Washington weather in December.

Compare Washington's Climate with Cities Worldwide

Conclusion: What to Expect From April Weather in Washington

As April unfolds in Washington, the weather presents a striking contrast to the frigid winter months, offering a blend of mild temperatures and increased humidity. With temperatures peaking at around 32°C (91°F) and an average of 14°C (57°F), residents enjoy a refreshing shift after the chill, though the occasional dip to -2°C (28°F) reminds everyone that spring is still finding its footing. Rainfall is also notable this month, with potentially up to 100 mm over approximately 11 days, enhancing the lush landscapes while contributing to an 81% humidity level that can feel quite sultry. For those curious about the broader climate trends in the area, more information can be found at Washington Climate.