April Weather in Ketchikan, United States

Last updated: February 24, 2025

April in Ketchikan, United States, is characterized by a cool and rainy climate. With maximum temperatures reaching 14°C (57°F) and a chilly average of 6°C (43°F), visitors should prepare for brisk conditions. The month also sees temperatures dipping as low as 0°C (32°F), making it essential to dress in layers. Rainfall is abundant, with 218 mm (8.6 in) of precipitation over approximately 16 days, resulting in a high humidity of 85%. This blend of moisture and cool weather enhances the lush, vibrant landscape, making April a beautiful yet damp time to experience Ketchikan's natural beauty.

April Temperature in Ketchikan

In April, Ketchikan emerges from the grip of winter, ushering in a gentle warming trend that brings a mix of crisp and mild days. With minimum temperatures hovering around 0°C (32°F) and average highs reaching 14°C (57°F), the month sets the stage for the arrival of spring. This transition is evident as the daily averages climb from the chillier months of January to March, reflecting an upward movement that signals the end of frosty nights. Although April can still be brisk, the balmy daytime temperatures hint at the warmth to come in May and beyond, inviting both locals and visitors to begin enjoying the rejuvenation of nature with longer daylight hours.

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

The chart illustrates April temperature patterns in Ketchikan, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec373538424852575854474238
Data source: Temperature data for Ketchikan generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

April Precipitation in Ketchikan

April in Ketchikan continues the city's wet trend, recording 218 mm (8.6 inches) of precipitation over 16 days. This marks a slight decline from the previous month, where March saw 221 mm (8.7 inches) falling in 19 days. As spring unfolds, precipitation levels hint at a tapering off following the peak winter months, yet Ketchikan remains firmly within its typical moisture patterns. This pattern sets the stage for the lush greenery that characterizes the region, as the city transitions toward drier conditions in May, which averages only 141 mm (5.6 inches). Overall, April's rainfall is a testament to Ketchikan's vibrant ecosystem and a reminder of the powerful forces of nature that shape its landscape.

April Precipitation Trends in Ketchikan

The chart displays monthly precipitation patterns in Ketchikan, 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.
JanFebMarAprMayJunJulAugSepOctNovDec306168221218141216162302302331410345
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in Ketchikan

In April, Ketchikan experiences a humidity level of 85%, which marks a slight increase from March's 84%. This moderate level of humidity is characteristic of early spring in this coastal region, where moisture-laden air begins to surge as temperatures gradually rise. As the year progresses, May brings a modest drop to 81%; however, the summer months see a notable spike, with July and August reaching a peak of 90% and 92%, respectively. Overall, Ketchikan's humidity exhibits a seasonal rhythm, starting strong in the winter and early spring before soaring in the summer, which can contribute to the lush, vibrant landscape the area is famous for.

April Average Humidity in Ketchikan

This chart illustrates the average monthly humidity levels in Ketchikan, 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%85%84%85%81%81%90%92%92%91%87%87%
Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in Ketchikan

In April, Ketchikan experiences a notable increase in the UV Index, rising to 5, which classifies it as a moderate exposure category. This shift indicates a growing need for sun protection, with a burn time of just 30 minutes for fair-skinned individuals. As spring progresses, the UV Index trends upward, suggesting that residents and visitors should be more vigilant about skin safety as the days get longer and sunnier. This pattern continues into May, when the UV intensity reaches higher levels. For those exploring the great outdoors, it's essential to stay informed about the UV Index in Ketchikan, so you can enjoy the beautiful scenery while protecting yourself from potential harm. For detailed information, check out the Ketchikan UV Index.

Maximum UV Index Levels in Ketchikan for April

The chart shows the monthly maximum UV Index (UVI) for Ketchikan 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.
JanFebMarAprMayJunJulAugSepOctNovDec123567875311
Data source: Ketchikan 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 Ketchikan

As April unfolds in Ketchikan, the city's days become noticeably brighter, boasting an impressive 216 hours of sunshine—an inviting prelude to the summer months. This significant leap from 174 hours in March signals a vibrant transition, with daylight hours increasing consistently as the year progresses. With sunshine peaking in July at 248 hours, Ketchikan basks in its sunniest period, creating a lively atmosphere for residents and visitors alike. The trend is clear: each spring month nurtures a growing appreciation for the sun, culminating in a dazzling summer, while the contrast with the darker winter months makes those radiant days even more cherished.

Monthly Sunshine Duration in Ketchikan: April Highlighted

The April sunshine duration represents the total number of hours Ketchikan 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.
JanFebMarAprMayJunJulAugSepOctNovDec48h128h174h216h245h232h248h224h184h132h70h63h
Data source: Ketchikan April Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Ketchikan During April

As spring approaches, Ketchikan begins to shed its winter gloom, with April standing out as a notable turning point in the forecast. The likelihood of sunny weather climbs to 41%, representing a significant leap from the dreary months of winter, where chances hovered around 20% to 28%. This uptick not only marks April as the sunniest month so far but also highlights an intriguing trend of increased sunshine as the region transitions from the chilly grip of winter. In contrast, the months that follow, like May and June, see a dip back down to 15% and 27%, respectively, showcasing the variability of Ketchikan’s climate. Overall, April offers a refreshing glimpse of sunshine, beckoning residents and visitors alike to embrace the outdoors after months of overcast skies.

Percentage of Sunny Days in April in Ketchikan

The chart illustrates the percentage of sunny days in Ketchikan 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 Ketchikan experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec20%28%18%41%15%27%27%31%10%22%17%38%
Data source: Ketchikan April chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Ketchikan in April

As spring unfolds in Ketchikan, April heralds a significant boost in daylight duration, offering an invigorating 14 hours of sunshine. This marks a notable increase from the 11 hours enjoyed in March, setting the stage for the longer days of summer ahead. The trend of increasing daylight is clear, as the city transitions from the deep winter months, where January only saw 7 hours, up to a remarkable 16 hours in May. By June, daylight peaks at 17 hours, showcasing the region's gradual shift from the dark days of winter towards the vibrant, sun-filled ambiance of summer. This seasonal progression not only enhances the scenery but also invigorates outdoor activities and community events, making April a delightful marker of longer, brighter days.

Average Daylight Hours in Ketchikan for April

The chart illustrates the variation in daylight duration in Ketchikan throughout the year, with April highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec7h 48m9h 40m11h 55m14h 13m16h 15m17h 20m16h 43m14h 51m12h 38m10h 21m8h 17m7h 10m
Data source: Ketchikan daylight hours, calculated by summing the hours between sunrise and sunset for each day.

April Winds in Ketchikan

April in Ketchikan marks a noticeable shift in the wind, with average speeds dropping to 4.4 m/s (10 mph). This gentle breeze signals the transition into the milder spring months, providing a contrast to the higher winds of winter. After the brisk gusts of January through March, which average between 6.1 m/s (14 mph) and 8.0 m/s (18 mph), April's calmer weather encourages outdoor exploration and enjoyment of the burgeoning greenery. Interestingly, the wind speeds remain steady into May, maintaining that same average—perhaps suggesting a serene lull before summer’s arrival. As the year progresses, wind speeds gradually fluctuate, but April stands out as a time when the atmosphere softens, inviting residents and visitors alike to relish the refreshing coastal air.

Average April Wind Speed in Ketchikan

The chart displays monthly wind speed patterns in Ketchikan, 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.
JanFebMarAprMayJunJulAugSepOctNovDec8.06.46.14.4 m/s4.44.83.74.66.16.87.35.4
Data source: Ketchikan April wind data, generated using information from the Copernicus Climate Change Service.

How April Weather in Ketchikan Compares to Other Months

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

April in Ketchikan experiences milder temperatures compared to January, with average highs reaching 14°C (57°F) and lows around 0°C (32°F), while January’s temperatures range from a chilly -10°C (15°F) to a maximum of 8°C (47°F). Precipitation is slightly lower in April, totaling 218 mm (8.6 in) over approximately 16 days, in contrast to January’s 306 mm (12.1 in) across 18 days. Humidity levels remain high in both months, with April at 85% and January at 86%. For more detailed insights, you can visit Ketchikan weather in January.

April typically offers milder temperatures compared to February, with minimums rising from -10°C (15°F) in February to 0°C (32°F) in April. The average temperature also sees an increase from 2°C (36°F) in February to 6°C (43°F) in April, while the maximum temperatures rise significantly from 8°C (47°F) to 14°C (57°F). Precipitation is higher in April, averaging 218 mm (8.6 in) over 16 days, compared to February's 168 mm (6.6 in) over 14 days. Both months experience a consistent humidity level of 85%, but April's milder temperatures make the rainy days feel less harsh. For more details on February weather, check out Ketchikan weather in February.

In comparing the weather between March and April, we see a slight increase in average temperatures. In March, the minimum temperature dips to -4°C (25°F) with an average of 4°C (39°F), while in April, the minimum rises to 0°C (32°F) and the average climbs to 6°C (43°F). Both months experience similar maximum temperatures of 14°C (57°F). Precipitation levels are also comparable, with March receiving 221 mm (8.7 in) over 19 days, while April totals slightly less at 218 mm (8.6 in) over 16 days. Humidity remains high in both months, at 84% for March and 85% for April. For more detailed insights, you can visit Ketchikan weather in March.

April and May display a noteworthy transition in weather patterns. In April, temperatures range from a chilly minimum of 0°C (32°F) to a maximum of 14°C (57°F), with an average of 6°C (43°F). The month is marked by high precipitation levels, totaling 218 mm (8.6 in) over 16 days, accompanied by humidity averaging 85%. In contrast, May enjoys slightly warmer conditions, with minimum temperatures of 4°C (40°F) and a maximum of 18°C (65°F), leading to an average of 9°C (48°F). Precipitation drops to 141 mm (5.6 in) across 15 days, and humidity decreases to 81%. This shift not only brings milder temperatures but also a reduction in rainfall, making May a more pleasant month overall. For more detailed information, check out Ketchikan weather in May.

April and June present striking differences in weather patterns. In April, temperatures are cooler, ranging from a minimum of 0°C (32°F) to a maximum of 14°C (57°F), with an average of 6°C (43°F). The month is characterized by significant precipitation, totaling 218 mm (8.6 in) over 16 days, along with high humidity at 85%. In contrast, June sees warmer temperatures, with a minimum of 7°C (44°F), an average of 11°C (53°F), and a maximum reaching 22°C (72°F). The precipitation levels are slightly less in June, totaling 216 mm (8.5 in) spread over 18 days, and humidity decreases to 81%. For a closer look at what to expect, check out Ketchikan weather in June.

April weather is notably cooler, with temperatures ranging from a chilly 0°C (32°F) at night to an average of 6°C (43°F) during the day, peaking at 14°C (57°F). In contrast, July brings milder conditions, with minimum temperatures of 10°C (50°F) and daily averages around 14°C (57°F), climbing to a comfortable maximum of 22°C (71°F). Although April experiences heavier rainfall with 218 mm (8.6 in) over 16 days, July sees less precipitation at 162 mm (6.4 in) across just 14 days, while both months maintain high humidity levels of 85% and 90%, respectively. For more details on July weather, check out Ketchikan weather in July.

April in Ketchikan features cool temperatures, with daily averages around 6°C (43°F) and maximums typically reaching up to 14°C (57°F). The month is characterized by significant precipitation, averaging 218 mm (8.6 in) over 16 rainy days, coupled with high humidity at 85%. In contrast, August experiences milder temperatures, with averages around 14°C (58°F) and highs peaking at 22°C (72°F). Although August is slightly wetter, with precipitation totals of 302 mm (11.9 in) over 17 days, the humidity rises to 92%, adding to the lush, green scenery typical of late summer. For more detailed insights into August weather, you can check Ketchikan weather in August.

April and September in Ketchikan present distinct weather patterns that mark the transition from spring to fall. In April, temperatures range from a chilly 0°C (32°F) to a mild 14°C (57°F), with an average of 6°C (43°F) and high humidity at 85%. The month sees considerable rainfall, totaling 218 mm (8.6 in) over 16 days. In contrast, September brings slightly warmer temperatures, with a minimum of 8°C (46°F) and a maximum of 19°C (67°F), giving an average of 12°C (55°F). However, it also experiences greater precipitation at 302 mm (11.9 in) over 17 days, accompanied by increased humidity of 92%. For more details on the weather specifics in September, you can visit Ketchikan weather in September.

April and October in Ketchikan both feature similar maximum temperatures, peaking at around 14°C (57°F). However, April generally experiences cooler minimum temperatures, starting at 0°C (32°F) compared to October's 3°C (38°F). Precipitation is notably higher in October, totaling 331 mm (13.0 in) over 20 days, compared to April's 218 mm (8.6 in) across 16 days. Additionally, humidity levels rise slightly in October to 91%, up from 85% in April. For more detailed information, check this link: Ketchikan weather in October.

April and November in Ketchikan exhibit similar average temperatures, with both months ranging from a minimum of 0°C (32°F) to an average of 6°C (43°F). However, November tends to be cooler in terms of maximum temperature, peaking at 11°C (51°F) compared to April's 14°C (57°F). The two months also differ significantly in precipitation; April sees 218 mm (8.6 in) of rain over 16 days, while November experiences a notable increase in rainfall, with 410 mm (16.1 in) across 23 days, resulting in higher humidity levels of 87% in November versus 85% in April. For more information on specific weather conditions in November, visit Ketchikan weather in November.

April and December present distinct weather profiles in Ketchikan. In April, temperatures range from a chilly 0°C (32°F) at night to a moderate 14°C (57°F) during the day, with average precipitation of 218 mm (8.6 in) over 16 rainy days and humidity at 85%. In contrast, December experiences colder temperatures, with lows dropping to -10°C (15°F) and highs reaching only 9°C (49°F). This month also sees more precipitation, totaling 345 mm (13.6 in) over 21 days, and slightly higher humidity at 87%. For more detailed insights into December's weather, visit Ketchikan weather in December.

Compare Ketchikan's Climate with Cities Worldwide

Conclusion: What to Expect From April Weather in Ketchikan

As April unfolds in Ketchikan, the city begins to transition from the chill of winter to the mildness of spring. With an average temperature hovering around 6°C (43°F), it’s a refreshing change from the colder months, although chilly evenings can still dip close to freezing. While the area experiences more rainfall, with 218 mm (8.6 in) over approximately 16 days, this moisture nourishes the verdant landscape, making it one of the wettest months of the year. The high humidity level of 85% adds a notable dampness to the air, creating that classic Northwest coastal atmosphere. If you're curious how Ketchikan's April weather compares to other times of the year, check out Ketchikan Climate for a comprehensive overview. Whether you're visiting for the fresh air or to witness the lush beauty brought forth by the rains, April offers a unique charm all its own.