Jacksonville Climate & Monthly Temperature Overview – United States

Climate

Jacksonville, located in northeastern Florida, experiences a humid subtropical climate characterized by hot, humid summers and mild winters. The city’s proximity to the Atlantic Ocean influences its weather patterns, bringing frequent rainfall and occasional thunderstorms during the summer months. Temperatures average in the high 90s Fahrenheit (mid-30s Celsius) during July and August, while humidity often reaches oppressive levels. Conversely, winters are generally mild, with average temperatures ranging from 40 to 60 degrees Fahrenheit (4-16 degrees Celsius). The lowest temperatures typically occur in January.

Average Weather Year Round

Throughout the year, Jacksonville receives an average of 50 inches (127 cm) of precipitation, with the wettest months being June through September. The city experiences occasional tropical storms and hurricanes, particularly during the Atlantic hurricane season, which runs from June 1st to November 30th. However, these storms are less frequent and less severe than in other coastal regions of Florida. During the spring and fall, temperatures are generally pleasant, with average highs in the 70s and 80s Fahrenheit (mid-20s to low-30s Celsius). During these seasons, Jacksonville offers a comfortable climate for outdoor activities and enjoys a vibrant arts and culture scene.

Average Temperature by Season

Jacksonville’s average temperature hovers around 68.5°F (20.3°C) throughout the year. However, the city experiences distinct seasonal variations. During the summer months (June to August), temperatures soar, with average highs reaching the mid-90s (°F) and lows in the low 70s (°F). In contrast, winter temperatures in Jacksonville are mild, with an average high of 61°F (16°C) and an average low of 39°F (4°C). Spring and autumn offer pleasant weather with average temperatures ranging from the low 60s (°F) to low 80s (°F).

Factors Influencing Temperature

Jacksonville’s proximity to the Atlantic Ocean has a significant influence on its temperature. The ocean’s moderating effect helps stabilize temperatures, resulting in a more temperate climate compared to inland areas. Additionally, the Gulf Stream, a warm ocean current that flows along the Atlantic coast, brings warm water to the Jacksonville area, contributing to its overall mild temperatures. The city’s low elevation above sea level also plays a role in its relatively warm climate, as higher elevations typically experience cooler temperatures.

Frequency of Clouds in Jacksonville

Jacksonville experiences a wide range of cloud cover throughout the year, influenced by its subtropical climate and proximity to the Atlantic coast. During the summer months, Jacksonville enjoys mostly clear skies, with an average of only 45% cloud cover. However, during the winter and spring months, cloudiness increases, reaching a peak of around 60% in February and March. This is primarily due to the frequent passage of cold fronts and associated storm systems, which bring overcast conditions and occasional precipitation.

Types of Clouds in Jacksonville

Jacksonville is often adorned by various types of clouds, each with its unique characteristics and contributions to the overall weather conditions. Cumulus clouds, characterized by their puffy appearance, are common during fair weather conditions, and often form in the morning hours before dissipating in the afternoon. Stratus clouds, on the other hand, are flat and gray, often covering the entire sky and sometimes leading to drizzle or light rain. Cirrus clouds, which are composed of ice crystals, appear as thin, wispy streaks high in the sky and typically indicate fair weather. Additionally, nimbus clouds are associated with precipitation, forming as dark, rain-producing clouds.

Total Precipitation

Jacksonville experiences an average of 54 inches of rainfall annually, distributed fairly evenly throughout the year. The wettest months are June, July, and August, when the city receives an average of 8 to 9 inches of rain each month. The driest month is October, with an average precipitation of 2 inches. Jacksonville also experiences occasional tropical storms and hurricanes, which can bring heavy rainfall.

Seasonal Patterns

Jacksonville’s precipitation follows a seasonal pattern. The rainy season typically lasts from May to October, with higher humidity and more frequent showers and thunderstorms. During this time, afternoon thunderstorms are common, often accompanied by heavy downpours, lightning, and strong winds. The dry season, from November to April, brings less precipitation, lower humidity, and milder temperatures. While the dry season is generally drier, it can still experience occasional rain showers, especially during the winter months.

Seasonal Rainfall Patterns

Jacksonville, located on the southeastern coast of the United States, experiences distinct seasonal rainfall patterns. During the summer months (June to August), precipitation is abundant due to frequent thunderstorms associated with warm, moist air masses from the Gulf of Mexico. This season accounts for approximately 40-50% of the annual rainfall, with heavy downpours often leading to flash flooding and urban runoff.

In contrast, winter rainfall in Jacksonville is significantly lower. From December to February, the region is influenced by cold fronts and dry air masses from the north. As a result, precipitation occurs less frequently and tends to be lighter in intensity. This season typically contributes only 15-20% of the annual rainfall.

Long-Term Rainfall Trends

Over the past several decades, Jacksonville has experienced fluctuating rainfall patterns. While long-term averages remain relatively stable, there have been notable deviations during certain periods. For instance, the period from 1995 to 2015 witnessed above-average rainfall, with several wet years and an increasing frequency of extreme rainfall events. However, since 2016, a slight decline in annual rainfall has been observed. This trend is consistent with regional and global climate change patterns, which suggest a shift towards a drier climate in the southeastern United States.

Historical Snowfall Events

Jacksonville, located in northeastern Florida, is renowned for its subtropical climate with mild winters. However, the city has experienced occasional snowfall throughout its history. The most significant snowfall event occurred on February 12-13, 1949, when a winter storm dumped 6.5 inches of snow on the city. This snowfall was the heaviest ever recorded in Jacksonville and caused widespread disruption, including school closures and power outages.

Other notable snowfall events include a 1.8-inch snowfall in January 1981 and a 1-inch snowfall in February 1985. While these events are less significant than the 1949 snowfall, they still serve as reminders that even in the warmest climates, snowfall is possible.

Current Weather Conditions

As of today, the current weather conditions in Jacksonville, United States, are sunny with a high temperature of 75 degrees Fahrenheit and a low temperature of 57 degrees Fahrenheit. The humidity is 65%, and the wind is blowing at 10 miles per hour. The UV index is 7, which is considered high. There is a 0% chance of precipitation.

Forecast for the Week

The forecast for the week in Jacksonville, United States, is mostly sunny with a few chances of rain. On Monday, there is a 20% chance of rain showers, and the high temperature will be 77 degrees Fahrenheit. On Tuesday, the high temperature will rise to 80 degrees Fahrenheit, and there is a 10% chance of rain. Wednesday and Thursday will be mostly sunny with high temperatures in the low 80s. There is a 30% chance of rain on Friday, and the high temperature will be 78 degrees Fahrenheit. The weekend will be mostly sunny with high temperatures in the mid-70s.

Visibility and Timing:

The moon’s visibility and timing in Jacksonville, United States, vary throughout the month. During the new moon phase, which occurs around the 29th or 30th of each month, the moon is not visible in the night sky. As the month progresses, the moon gradually becomes more visible, reaching its peak brightness during the full moon phase, which typically falls around the 15th or 16th of the month. During the full moon, the moon is completely illuminated by sunlight and appears as a circular disc in the sky. The exact timing of the moon’s phases and its visibility can be accurately predicted using astronomical charts or moon phase calendars.

Moonrise and Moonset:

The times of moonrise and moonset in Jacksonville, United States, also vary throughout the month. During the new moon phase, the moon is not visible because it is positioned between the Earth and the Sun. As the moon progresses through its phases, its position relative to the Earth and the Sun changes, causing it to rise and set at different times. During the full moon phase, the moon is opposite the Sun in the sky, and it rises around sunset and sets around sunrise. The specific times of moonrise and moonset can vary slightly depending on the observer’s location within Jacksonville and the time of year.

Average Humidity Levels

Jacksonville, Florida experiences varying humidity levels throughout the year, influenced by its coastal location and proximity to the Atlantic Ocean. In general, the city’s humidity tends to be high throughout the year, with an average relative humidity ranging from 72% to 82%. The highest humidity levels occur during the summer months (June-September), when the average relative humidity hovers around 80%. During these months, the combination of warm temperatures and moisture from the ocean can make it feel even more oppressive than the actual air temperature.

Impact of High Humidity

High humidity can have a significant impact on the comfort and health of individuals. Prolonged exposure to high humidity levels can lead to dehydration, as the body attempts to perspire to cool itself down. The excess moisture in the air also inhibits the body’s ability to dissipate heat through evaporation, potentially leading to heat cramps, heat exhaustion, and in extreme cases, heat stroke. Additionally, high humidity can exacerbate respiratory issues, such as asthma and allergies, as the moisture can irritate and inflame airways. To mitigate the effects of high humidity, residents and visitors are advised to stay hydrated, seek shelter in air-conditioned environments during the hottest hours of the day, and use fans or dehumidifiers to reduce moisture levels indoors.

Wind Speed and Direction in Jacksonville

Jacksonville, located on the Atlantic coast of Florida, experiences a humid subtropical climate characterized by warm temperatures and year-round rainfall. The city’s wind patterns are influenced by its coastal location, with prevailing winds from the east-southeast blowing off the ocean. These easterly winds typically range from 10 to 15 miles per hour (16-24 kilometers per hour) throughout the year, providing a cooling breeze during the hot summer months.

Seasonal Variations in Wind Patterns

During the winter months, when the cold fronts move through the region, Jacksonville can experience stronger northerly or northwesterly winds. These winds can bring colder air and occasionally bring in precipitation. In the summer, the city is prone to afternoon thunderstorms, which can generate gusty winds and brief periods of heavy rain. Tropical cyclones, such as hurricanes and tropical storms, can also impact Jacksonville’s wind patterns, bringing high winds and potential flooding.

Spring (March-May):

Spring in Jacksonville offers pleasant weather with average temperatures ranging from 55°F to 80°F. The city awakens from its winter slumber, with blossoming flowers and vibrant greenery adding to its natural charm. The warm and sunny days are ideal for outdoor activities like kayaking, biking, or simply strolling along the pristine beaches. Spring festivals and events, such as the Jacksonville Riverfront Jazz Festival and the Florida Earth Day Festival, provide ample entertainment and opportunities for community engagement.

Fall (September-November):

Fall in Jacksonville signals the arrival of cooler temperatures, hovering around 60°F to 80°F. As the humidity subsides, the city basks in crisp and refreshing air, making it perfect for exploring the outdoors. Fall foliage paints the trees with vibrant hues of red, orange, and yellow, creating a picturesque backdrop for scenic drives or nature walks. Local markets and festivals showcase the region’s bounty, offering fresh produce, delectable seafood, and unique handcrafted items. The Jacksonville Film Festival, held in the fall, brings together film enthusiasts and showcases independent films from around the world.

Solar Potential and Challenges:

Jacksonville, Florida, enjoys abundant sunshine throughout the year, making it a prime candidate for solar energy utilization. The city receives an average of 259 sunny days per year, with a mean solar insolation of 5.4 kWh/m²/day. This solar resource is comparable to regions in the Sun Belt, where solar energy has been successfully deployed. However, Jacksonville faces certain challenges in solar development. The city’s coastal location can result in higher humidity and salt spray, which can affect the efficiency of solar panels. Additionally, the presence of hurricanes and tropical storms poses a potential risk to solar energy infrastructure.

Government Initiatives and Projects:

To encourage solar energy adoption, the city of Jacksonville and the state of Florida have implemented various initiatives. The city offers financial incentives and rebates for the installation of residential and commercial solar systems. In 2018, Jacksonville joined the SolSmart program, a national initiative that helps cities streamline solar permitting and reduce costs. Furthermore, the city has undertaken several solar projects, including the installation of solar panels on government buildings and public facilities. The largest of these projects is the 20 MW solar farm at Cecil Field, which provides clean energy to the community and supports Jacksonville’s goal of becoming a more sustainable city.

Relief

Jacksonville, Florida, is situated on a gently sloping plain that rises gradually from the St. Johns River towards the Atlantic coast. The city’s terrain is characterized by low-lying areas and rolling hills, with the highest elevation reaching approximately 100 feet above sea level. The coastal portion of Jacksonville features sandy beaches and dunes, while the inland areas are dominated by pine forests and marshes. The city’s topography has significantly influenced its urban development, with coastal areas being primarily developed for residential and recreational purposes, while the inland areas are more commonly used for industrial and agricultural activities.

Hydrology

The St. Johns River is the defining hydrological feature of Jacksonville. The river flows through the city from south to north, dividing it into eastern and western halves. The river’s wide, meandering course has created a network of islands and marshes that provide a rich habitat for wildlife. Additionally, the city is drained by numerous creeks and tributaries that flow into the St. Johns River. These waterways not only provide drainage but also offer recreational opportunities and scenic views. The presence of the St. Johns River and its associated waterways has played a significant role in Jacksonville’s history and economic development, supporting industries such as shipping, fishing, and tourism.

Jacksonville International Airport (JAX)

Jacksonville International Airport (JAX) is the main commercial airport serving Jacksonville, Florida, and the surrounding area. Located approximately 10 miles north of downtown Jacksonville, JAX serves as the gateway to Northeast Florida and provides convenient access to the city’s attractions, beaches, and business districts. The airport has two runways and handles both domestic and international flights, with a wide range of airlines operating from its terminals. JAX is the largest airport in Northeast Florida and offers a variety of amenities and services, including several restaurants, shops, and ground transportation options.

Other nearby airports

While JAX is the closest airport to Jacksonville, there are a few other options located within a reasonable driving distance. St. Augustine Airport (SGJ) is situated about 50 miles south of Jacksonville and primarily caters to general aviation and private flights. Daytona Beach International Airport (DAB), approximately 60 miles to the north, offers limited commercial flights. Both airports are smaller in size and offer fewer flight options compared to JAX. The choice of which airport to use depends on factors such as destination, flight availability, and convenience. However, for travelers seeking the most convenient and comprehensive air travel experience, Jacksonville International Airport remains the primary choice.

Arts and Culture:

Jacksonville boasts a thriving arts and culture scene, offering a diverse array of experiences for visitors and locals alike. The Cummer Museum of Art & Gardens houses an impressive collection spanning from ancient Egypt to contemporary works. The Museum of Science & History showcases interactive exhibits on science, technology, and local history. The Jacksonville Symphony Orchestra performs a wide range of classical and contemporary music at the Jacoby Symphony Hall. Numerous theaters, art galleries, and independent music venues cater to a variety of tastes and preferences.

Parks and Recreation:

Jacksonville’s sprawling parks and green spaces provide ample opportunities for outdoor recreation and relaxation. The Jacksonville Zoo and Gardens is home to a diverse collection of animals from around the world, nestled amidst lush gardens. Hanna Park encompasses over 1,500 acres of pristine beach, hiking trails, and picnic areas. The St. Johns Riverfront offers scenic views, boat rentals, and waterfront dining options. Other popular parks include the Timucuan Ecological and Historic Preserve, offering kayaking and canoeing opportunities, and the Jacksonville Arboretum & Gardens, showcasing a vast collection of native and exotic plants.