April Weather in Annapolis, United States

Last updated: February 24, 2025

April in Annapolis brings a refreshing transition from the chill of winter, featuring a maximum temperature reaching 27°C (82°F) and a pleasant average of 13°C (56°F). Cool breezes can still be felt, with temperatures dipping to a minimum of 1°C (33°F), especially in the early mornings and evenings. The month is characterized by substantial precipitation, averaging 110 mm (4.3 in) over approximately 11 days, creating a lush environment. With humidity levels hovering around 81%, residents and visitors alike can expect a mix of invigorating spring air and the occasional rain shower, making April a dynamic time to experience Annapolis's charm.

April Temperature in Annapolis

In April, Annapolis experiences a delightful transition into spring, marked by notable warming trends compared to the preceding months. The minimum temperature rises to a mild 1°C (33°F), while the average settles comfortably at 13°C (56°F), and highs can reach a pleasantly warm 27°C (82°F). This shift from the chilly grips of winter creates an inviting atmosphere perfect for outdoor activities and enjoying blossoming landscapes. As April progresses, the city revels in longer days and the vibrant hues of spring, making it a charming time to explore Annapolis's historical sites and picturesque waterfront.

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

The chart illustrates April temperature patterns in Annapolis, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec374046556575807873634942
Data source: Temperature data for Annapolis 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 Annapolis

In April, Annapolis experiences a noteworthy precipitation total of 110 mm (4.3 inches), which marks a consistent trend of significant rain following the winter months. With rainfall occurring over 11 days, the spring ambiance begins to take shape as the city's landscape transforms with lush greenery. This April figure sits comfortably between the wetter months of May (138 mm) and March (95 mm), reflecting a steady uptick that anticipates the heavier showers of early summer. The data suggests that as spring progresses, precipitation becomes an integral part of the region's seasonal rhythm, paving the way for vibrant blossoms and revitalized ecosystems. Clearly, April serves as a pivotal transition month, balancing the remnants of winter's chill with the burgeoning warmth of approaching summer.

April Precipitation Trends in Annapolis

The chart displays monthly precipitation patterns in Annapolis, 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.
JanFebMarAprMayJunJulAugSepOctNovDec701169511013810217515911312786109
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

April Humidity in Annapolis

In April, Annapolis experiences a noticeable shift in humidity as it drops to 81%, marking a gradual decrease from the higher levels observed in the earlier months of the year. This trend continues from January through March, where humidity levels linger around the 83-84% range. As spring unfolds, the air becomes slightly drier, paving the way for the warmth of summer. By May, humidity decreases further to 78%, illustrating a shift towards more comfortable conditions. Overall, April acts as a transitional month that sets the stage for drier summer months while still retaining some of the lingering humidity typical of early spring.

April Average Humidity in Annapolis

This chart illustrates the average monthly humidity levels in Annapolis, 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 Annapolis

As April arrives in Annapolis, the UV Index surges to 9, marking a shift to the very high exposure category with a reduced burn time of just 15 minutes. This dramatic increase from March's 7 underscores a broader trend as the spring months transition into summer, where UV levels consistently peak. Following April, May and June maintain an even higher UV Index of 10, emphasizing the importance of sun safety as outdoor activities increase. It’s crucial to remain vigilant, especially during this period, as the sun's intensity poses significant risks for unprotected skin. For more details on UV levels throughout the year, check out Annapolis UV Index.

Maximum UV Index Levels in Annapolis for April

The chart shows the monthly maximum UV Index (UVI) for Annapolis 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: Annapolis 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 Annapolis

As April rolls into Annapolis, the city basks in 268 hours of sunshine, marking a delightful peak in the transition from winter to spring. This month shows a consistent upward trend in sunshine hours, building on the 261 hours recorded in March. The increase is a precursor to the vibrant days ahead, with May promising even more light, reaching 297 hours. This progression not only highlights the arrival of warmer weather but also invites residents and visitors alike to embrace outdoor activities and the natural beauty that characterizes the Chesapeake Bay region. The steady climb from the winter months significantly enhances the overall mood, making April a truly golden month in Annapolis.

Monthly Sunshine Duration in Annapolis: April Highlighted

The April sunshine duration represents the total number of hours Annapolis 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.
JanFebMarAprMayJunJulAugSepOctNovDec151h182h261h268h297h339h359h329h281h250h226h190h
Data source: Annapolis April Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Annapolis During April

In April, Annapolis enjoys a 48% chance of sunny weather, which aligns closely with the city's overall trend for the spring months. After a brighter March with a 53% chance of sun, April experiences a slight dip, yet remains one of the more favorable months in the year. As the seasons transition, sunlight tends to fluctuate, with May witnessing a decrease to 41%, and June dipping further to 39%. Notably, April stands out amidst the generally lackluster summer months of July and August, which hover around 51% and 35%, respectively. The data suggests that while April is not the sunniest month, it certainly holds its ground among the springtime offerings in Annapolis, providing ample opportunities for outdoor activities and enjoyment before the heat sets in.

Percentage of Sunny Days in April in Annapolis

The chart illustrates the percentage of sunny days in Annapolis 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 Annapolis experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec46%28%53%48%41%39%51%35%55%42%56%38%
Data source: Annapolis April chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Annapolis in April

In Annapolis, United States, the arrival of April marks a delightful transition into longer days, as daylight extends to an impressive 13 hours. This increase is part of a broader trend that sees daylight gradually lengthening from the depths of winter, where January offers a mere 9 hours. As spring unfolds, March provides a gentle progression to 11 hours, setting the stage for April's brightness. Following April's vibrant burst, May continues to amplify the sunshine with 14 hours, reaching the peak of daylight during the summer months. As the year progresses, daylight gradually wanes again, showcasing a natural rhythm that characterizes the seasonal cycle in Annapolis. This ebb and flow not only highlight the beauty of spring but also remind us of the fleeting nature of longer days as summer gives way to autumn.

Average Daylight Hours in Annapolis for April

The chart illustrates the variation in daylight duration in Annapolis 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 15m14h 19m14h 51m14h 33m13h 36m12h 23m11h 7m10h 1m9h 27m
Data source: Annapolis daylight hours, calculated by summing the hours between sunrise and sunset for each day.

April Winds in Annapolis

In April, the winds in Annapolis blow steadily at an average speed of 4.1 m/s (9 mph), marking a slight dip from the preceding months. This shift reflects a gradual easing as winter gives way to spring, with January and February both enjoying brisker gusts of 3.9 m/s and 4.3 m/s respectively. The pleasant April breeze invites outdoor activities, providing a refreshing atmosphere as the city begins to bloom. Interestingly, as temperatures rise in May and June, wind speeds continue to decline, suggesting a transition to the calmer, warmer months ahead. Such trends highlight the dynamic relationship between seasonal changes and wind patterns, making April a delightful time to experience Annapolis's coastal charm.

Average April Wind Speed in Annapolis

The chart displays monthly wind speed patterns in Annapolis, 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.
JanFebMarAprMayJunJulAugSepOctNovDec3.94.34.24.1 m/s3.73.43.22.73.63.84.13.6
Data source: Annapolis April wind data, generated using information from the Copernicus Climate Change Service.

How April Weather in Annapolis Compares to Other Months

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

April and January present strikingly different weather patterns. In April, temperatures range from a chilly minimum of 1°C (33°F) to a warm maximum of 27°C (82°F), with an average of 13°C (56°F), while January experiences much colder conditions, with lows dropping to -13°C (10°F) and a maximum of 17°C (63°F). Additionally, April sees more precipitation, totaling 110 mm (4.3 in) over 11 days, compared to January's 70 mm (2.7 in) over just 8 days. Humidity levels remain relatively high in both months, with April at 81% and January slightly higher at 84%. For more details on January weather in Annapolis, you can check Annapolis weather in January.

Comparing the weather in April and February reveals significant differences in temperature and overall conditions. In April, the temperatures range from a chilly minimum of 1°C (33°F) to a pleasant maximum of 27°C (82°F), with an average of 13°C (56°F). In contrast, February experiences much colder temperatures, with a minimum of -13°C (10°F) and a maximum of 21°C (69°F), averaging just 5°C (40°F). Precipitation levels are fairly similar, with April seeing 110 mm (4.3 in) over 11 days and February registering 116 mm (4.6 in) over 12 days, whereas humidity levels remain slightly higher in February at 83% compared to April's 81%. For more details about February weather, you can check Annapolis weather in February.

April's weather in Annapolis is distinctly warmer than March, with average temperatures rising from 8°C (46°F) in March to 13°C (56°F) in April. The minimum temperature in April is 1°C (33°F), compared to March's chilly -5°C (23°F), while the maximum temperature sees a slight increase, reaching up to 27°C (82°F) in April. Precipitation levels are also slightly higher in April, with 110 mm (4.3 in) over 11 days, compared to 95 mm (3.7 in) across 10 days in March. Humidity remains relatively consistent, with April at 81% while March is at 83%. Overall, April marks a transition into a milder spring climate. For more details, check out Annapolis weather in March.

April and May present a noticeable transition in weather patterns. In April, temperatures range from a chilly 1°C (33°F) at night to a comfortable 27°C (82°F) during the day, with an average of 13°C (56°F). The month is characterized by high humidity at 81% and significant precipitation, totaling 110 mm (4.3 in) over about 11 days.

In contrast, May experiences warmer temperatures, with a minimum of 4°C (39°F) and a maximum of 31°C (88°F), averaging around 18°C (65°F). The month sees an increase in precipitation to 138 mm (5.4 in) spread over 13 days, yet humidity slightly decreases to 78%. For a detailed look at how May weather unfolds, check out Annapolis weather in May.

April and June exhibit notable differences in weather patterns. In April, temperatures range from a minimum of 1°C (33°F) to a maximum of 27°C (82°F), with an average of 13°C (56°F). The month sees substantial precipitation, totaling 110 mm (4.3 in) over 11 days, and a relatively high humidity of 81%. In contrast, June offers warmer conditions, with temperatures ranging from a minimum of 12°C (53°F) to a maximum of 32°C (91°F), resulting in a comfortable average of 24°C (75°F). Precipitation is slightly lower at 102 mm (4.0 in) across 13 days, with humidity staying slightly lower at 79%. For more detailed insights, check out Annapolis weather in June.

April and July present quite contrasting weather patterns. In April, temperatures range from a brisk 1°C (33°F) to a pleasant average of 13°C (56°F), with highs reaching 27°C (82°F). The month sees about 110 mm (4.3 in) of precipitation over 11 days and is characterized by high humidity levels around 81%. In stark contrast, July boasts much warmer temperatures, with a minimum of 19°C (66°F) and average highs of 27°C (81°F), peaking at a scorching 35°C (95°F). Precipitation increases to 174 mm (6.9 in) over 14 days, and the humidity drops slightly to 74%. For more detailed insights into the July climate, check Annapolis weather in July.

April and August present quite contrasting weather conditions. In April, temperatures range from a chilly minimum of 1°C (33°F) to a comfortable maximum of 27°C (82°F), with an average of 13°C (56°F). This month sees considerable precipitation, totaling 110 mm (4.3 in) across 11 days, and a high humidity level of 81%. In stark contrast, August experiences warmer temperatures, with a minimum of 17°C (63°F), an average of 26°C (78°F), and a peak of 33°C (92°F). Although August is typically hotter, it also tends to be wetter, with 159 mm (6.3 in) of rainfall spread over 15 days and a lower humidity of 72%. For more details on the weather specifics, check out Annapolis weather in August.

April and September present quite different weather experiences. In April, temperatures vary significantly, with minimums around 1°C (33°F) and maximums reaching 27°C (82°F), resulting in a cooler average of 13°C (56°F). The month sees about 110 mm (4.3 inches) of precipitation over 11 days, accompanied by high humidity levels of 81%. In contrast, September enjoys milder conditions, with minimum temperatures rising to 11°C (52°F) and maximums at 32°C (90°F), yielding a warmer average of 23°C (73°F). While precipitation remains similar at 113 mm (4.5 inches) over 10 days, the humidity relaxes to 75%. For more detailed insights into September weather, you can visit Annapolis weather in September.

April and October present distinct yet somewhat comparable weather patterns. In April, temperatures range from a chilly 1°C (33°F) to a warm 27°C (82°F), with an average of 13°C (56°F). The month sees about 110 mm (4.3 in) of precipitation over 11 days, coupled with a consistent humidity level of 81%.

In contrast, October starts slightly warmer, with minimum temperatures around 5°C (41°F) and highs reaching up to 32°C (90°F), averaging 17°C (64°F). Precipitation increases slightly to 127 mm (5.0 in) over 10 days, maintaining the same humidity at 81%. This similarity in humidity levels highlights a consistent atmospheric feel, despite the changes in temperature and precipitation. For more insights about October's weather, you can check Annapolis weather in October.

April and November present distinct weather patterns, each with its own charm. In April, temperatures range from a minimum of 1°C (33°F) to a maximum of 27°C (82°F), with an average of 13°C (56°F), accompanied by 110 mm (4.3 in) of precipitation over 11 days and a relative humidity of 81%. In contrast, November experiences cooler temperatures, with a minimum of -3°C (27°F) and a maximum of 24°C (75°F), averaging at 9°C (49°F). Precipitation in November is somewhat lower, with 86 mm (3.4 in) falling over 8 days and humidity slightly higher at 85%. For more specific insights, check out Annapolis weather in November.

April and December exhibit stark contrasts in weather patterns. In April, temperatures range from a minimum of 1°C (33°F) to a warm maximum of 27°C (82°F), with an average of 13°C (56°F) and an 81% humidity level. Precipitation is moderate during this month, totaling 110 mm (4.3 in) over 11 days. Conversely, December offers a much cooler experience, with temperatures dropping to a minimum of -8°C (17°F) and an average of 5°C (42°F), peaking at 18°C (65°F). The humidity is slightly higher at 84%, and precipitation levels are comparable, with 109 mm (4.3 in) over 10 days. For more details on December weather, visit Annapolis weather in December.

Compare Annapolis's Climate with Cities Worldwide

Conclusion: What to Expect From April Weather in Annapolis

April in Annapolis heralds a transition to milder temperatures and a burst of spring vitality. As the month unfolds, the average warmth begins to elevate the chilly days of winter, bringing a refreshing change with occasional rainfall. While the humidity remains relatively high, typical of this season, the combination of sun-warmed afternoons and cool evenings provides a unique charm distinct from the more extreme weather seen in other months. With 11 days of precipitation contributing to the vibrant blooming of flora, April truly serves as a gentle prelude to the warmth of summer. For a deeper dive into what to expect throughout the year, visit Annapolis Climate.