Harrow Climate & Monthly Temperature Overview – United Kingdom

Summer (June-August)

Summer in Harrow is generally warm and pleasant, with average temperatures ranging from 16 to 22°C (61 to 72°F). The warmest month, July, sees average high temperatures of 23°C (73°F). Rainfall is moderate, with an average of 50-60 mm (2-2.4 inches) per month. Sun shines for an average of 6-7 hours per day, providing ample opportunities for outdoor activities.

Winter (December-February)

Winters in Harrow are relatively mild compared to other parts of the UK. Average temperatures range from 3 to 7°C (37 to 45°F), with January being the coldest month with an average high of 6°C (43°F). Frost and fog are common, and occasional snow or sleet is possible. Rainfall is also moderate, with an average of 50-60 mm (2-2.4 inches) per month. Sun shines for an average of 2-3 hours per day, making it important to make the most of daylight hours.

Annual Temperature Variation

Harrow, located in North West London, experiences a temperate oceanic climate with distinct seasonal variations. The average annual temperature in Harrow is approximately 10.6°C (51°F). The warmest months are July and August, with average temperatures of around 18°C (64°F). January is the coldest month, with an average temperature of 3.5°C (38.3°F).

Monthly Temperature Variations

Throughout the year, the monthly average temperature in Harrow fluctuates significantly. In January, the coldest month, temperatures typically range from 0°C (32°F) to 7°C (45°F). During the summer months, from June to August, temperatures average between 15°C (59°F) and 21°C (70°F), with occasional spikes reaching into the mid-20s. Autumn and spring bring milder temperatures, with October and April averaging around 9°C (48°F) and 12°C (54°F), respectively.

Types of clouds in Harrow, United Kingdom

Harrow, United Kingdom, experiences a variety of cloud formations due to its location in the mid-latitudes and its proximity to the Atlantic Ocean. Common cloud types seen in Harrow include cirrus, cumulus, stratus, and nimbus clouds.

Cirrus clouds are thin, wispy clouds that are composed of ice crystals. They are the highest clouds in the sky and are often seen on clear days. Cumulus clouds are puffy clouds that look like cotton balls. They are typically associated with fair weather, but can also lead to showers. Stratus clouds are flat, gray clouds that cover the entire sky. They often produce drizzle or light rain. Nimbus clouds are dark, rain-bearing clouds that can produce heavy rain or snow.

Impact of clouds on Harrow, United Kingdom

The presence of clouds in Harrow, United Kingdom, can have a significant impact on the weather and climate. Cirrus clouds can reflect sunlight back into space, which can help to cool the Earth’s surface. Cumulus clouds can provide shade from the sun, which can help to keep temperatures comfortable. Stratus clouds can block sunlight, which can lead to cooler temperatures and reduced visibility. Nimbus clouds can produce rain or snow, which can impact transportation and other outdoor activities.

Overall, clouds play an important role in the weather and climate of Harrow, United Kingdom. They can affect temperature, precipitation, and visibility. Understanding the different types of clouds and their impact on weather can help people to better prepare for and respond to changing weather conditions.

Annual Precipitation:

Harrow receives an average annual precipitation of around 640 mm (25 inches), which is slightly below the UK average. The precipitation is fairly evenly distributed throughout the year, with no particularly dry or wet seasons. However, there is a slight peak in precipitation during the winter months (December to February).

Seasonal Distribution:

The seasonal distribution of precipitation in Harrow is influenced by the prevailing weather patterns in the UK. During the summer months (June to August), the weather is often dominated by high-pressure systems, which bring settled and dry conditions. As a result, precipitation is typically low during this period, with monthly averages ranging from 40 to 50 mm. In contrast, during the winter months, low-pressure systems become more frequent, bringing with them clouds and precipitation. Monthly precipitation totals during the winter can exceed 70 mm.

Monthly Rainfall

Harrow, located in the United Kingdom, experiences a temperate climate with relatively consistent rainfall throughout the year. The driest month is April, with an average rainfall of 39 mm. Rainfall increases gradually from May to December, peaking in October and November with an average of 63 mm and 60 mm, respectively. January and February are the second driest months, with an average rainfall of 40 mm and 42 mm, respectively.

Annual Rainfall

Harrow’s annual rainfall averages around 630 mm, which is slightly higher than the national average for the United Kingdom. The rainfall is well-distributed throughout the year, with no distinct wet or dry season. However, the area does experience occasional periods of heavy rainfall, particularly during the colder months. These periods can lead to localized flooding and disruption to daily life. Overall, Harrow’s rainfall provides a reliable source of water for local ecosystems and supports the region’s agricultural activities.

Historical Snowfall

Harrow, located in northwest London, experiences sporadic snowfall during the winter months. While heavy snowfall events are relatively uncommon, the area has witnessed notable snowfalls in the past. In February 2009, a significant snowfall blanketed Harrow, causing widespread disruption to transportation and daily life. The snow accumulation reached several inches, leading to road closures, school cancellations, and power outages. Similarly, in January 2013, another heavy snowfall event affected Harrow, with snowfall exceeding 10 inches in some areas. These exceptional snowfall events highlight the unpredictable nature of winter weather in the United Kingdom.

Current Snowfall and Climate Change

In recent years, Harrow has experienced milder winters with less frequent and less severe snowfall events. This trend is consistent with the observed effects of climate change, which is leading to warmer temperatures and altered precipitation patterns. While occasional snowfall still occurs in Harrow, the frequency and intensity of these events have diminished compared to the past. The milder winters have implications for various sectors, including transportation, infrastructure, and the local economy. It is expected that climate change will continue to influence snowfall patterns in Harrow in the future, with a decrease in the frequency and severity of snowfall events.

Weather Conditions and Patterns

Harrow, United Kingdom, experiences a temperate climate with four distinct seasons. The summer months (June-August) bring an average temperature of 16°C (61°F), while winter (December-February) typically sees temperatures drop to an average of 4°C (39°F). Rainfall is spread throughout the year, with an average of 600mm (24 inches) falling annually.

Sunshine Hours

Harrow enjoys a good amount of sunshine, with an average of around 1,500 hours per year. The sunniest months are May and June, with an average of 7 hours of sunshine per day. The cloudiest months are December and January, when an average of 4 hours of sunshine are seen daily.

History of the Moon, Harrow

The Moon is a public house located in Harrow, United Kingdom. It is situated on the corner of College Road and Christchurch Avenue, and is one of the oldest pubs in Harrow. The pub is believed to date back to the 16th century, and was originally known as the “Shepherd’s Bush.”

In the 19th century, the pub was renamed the “Moon,” and became a popular haunt for coachmen and travelers. The pub is said to have been visited by Charles Dickens, who wrote about it in his novel “The Pickwick Papers.” The Moon has also been featured in several films and television shows, including “The Avengers” and “The Sweeney.”

Architecture and Interior of the Moon

The Moon is a two-story building with a red brick façade. The pub has a traditional interior with a wooden bar and beamed ceilings. The walls are adorned with various artifacts, including horse brasses and old photographs. The pub has a small garden at the rear, which is a popular spot for alfresco dining in the summer months.

Average Humidity Levels

Harrow, United Kingdom, experiences a temperate climate with generally moderate humidity levels throughout the year. The average annual relative humidity in Harrow is around 75%. However, humidity levels can vary considerably depending on the season, time of day, and weather conditions.

During the summer months (June to August), the relative humidity in Harrow averages around 70-75%. This is due to the warmer temperatures and increased evaporation from the sun. During the winter months (December to February), the relative humidity typically rises to around 80-85% as the air becomes cooler and can hold less moisture. Spring and autumn months (March to May and September to November) exhibit intermediate humidity levels, with relative humidity ranging from 65-75%.

Extreme Humidity Levels

Although Harrow generally experiences moderate humidity levels, extreme humidity can occur occasionally. During periods of high pressure and little air movement, the relative humidity can rise above 90%, leading to uncomfortable and oppressive conditions. Conversely, during periods of low pressure and strong winds, the relative humidity can drop below 50%, creating a dry and potentially irritating atmosphere.

Effects of Humidity on Comfort and Health

Humidity levels can significantly impact human comfort. When the relative humidity is high, the air holds more moisture, which can make it feel warmer and more uncomfortable. This can lead to increased sweating and heat exhaustion. Conversely, low humidity levels can cause the skin and mucous membranes to dry out, leading to irritation and respiratory problems. Optimal humidity levels for comfort and health typically range from 40-60%.

Geography and History

Harrow, a town in northwest London, United Kingdom, is situated in a relatively elevated area compared to the surrounding landscape. This geographical feature, combined with its proximity to the open countryside, makes Harrow susceptible to strong winds. The town’s location near the Chiltern Hills, an escarpment to the northwest, creates a funneling effect as air flows from the west. Additionally, the presence of large, open spaces such as Harrow on the Hill Park and Harrow Weald Common enhances the impact of wind.

Historically, Harrow has experienced significant wind events. The Great Storm of 1987, a powerful hurricane-force windstorm that ravaged southern England, caused extensive damage in Harrow. Trees were uprooted, roofs were torn off, and power lines were downed. Similarly, the Burns’ Day Storm of 2020, a severe windstorm that hit the United Kingdom and Ireland, brought strong winds to Harrow, leading to power outages and travel disruptions. These events highlight the vulnerability of Harrow to extreme wind conditions.

Summer (June to August):

Summer in Harrow is characterized by warm and pleasant weather, with average temperatures ranging from 15 to 25 degrees Celsius. This is the ideal time to explore Harrow’s many outdoor attractions, such as the beautiful Harrow Hill Park, with its stunning views over London. Visitors can also enjoy the vibrant atmosphere at the Harrow Summer Festival, which features live music, street food, and family-friendly entertainment.

Autumn (September to November):

Autumn in Harrow brings with it a crisp, refreshing charm. The foliage in the surrounding countryside turns into vibrant shades of gold, orange, and red, creating picturesque landscapes. This is a great time to visit the Stanmore Country Park, which encompasses over 120 hectares of woodland and meadows, offering stunning walks and bike trails. Additionally, the Harrow Art Centre showcases a variety of exhibitions and workshops during this time, making it an excellent destination for art enthusiasts.

Potential and Suitability

Harrow, located in northwest London, has moderate potential for solar energy utilization. The area receives an average of 1,050-1,100 sunshine hours per year, which is lower than the UK average but still sufficient for solar power generation. The borough’s rooftops, particularly on commercial and industrial buildings, offer ample space for the installation of photovoltaic (PV) systems. Additionally, Harrow has a relatively flat topography, minimizing shading issues and making it suitable for ground-mounted solar arrays.

Initiatives and Developments

Harrow Council recognizes the importance of renewable energy and has set ambitious targets to reduce its carbon footprint. The council aims to install solar panels on 500 council buildings by 2025. The local planning authority has streamlined the planning process for solar installations to encourage widespread adoption. Several community groups and businesses in Harrow have also expressed interest in exploring solar energy options, suggesting a growing appetite for renewable energy sources.

Harrow Hill

Harrow Hill is the highest point in the London Borough of Harrow, standing at 144 meters (472 feet) above sea level. It is situated in the northern part of the borough and offers panoramic views of the surrounding area, including the skyline of London to the south. The hill is a popular destination for walkers and nature enthusiasts, with several walking trails and viewpoints available. It is also home to the iconic Harrow School, a prestigious independent boarding school founded in 1572.

Surrounding Landscape

The topography of Harrow is characterized by gently rolling hills and green spaces. The borough is situated on the edge of the London Basin, a sedimentary basin that extends from Hampshire to Essex. The underlying geology consists mainly of chalk, clay, and sand. The River Brent flows through Harrow, forming a valley that provides a natural boundary between different parts of the borough. Pinner Hill, another prominent elevation, is located to the west and is known for its scenic views and popular parkland.

Heathrow Airport (LHR)

Heathrow Airport, located approximately 15 miles west of Harrow, is the nearest major airport. It is a bustling international hub, serving over 80 million passengers annually. Heathrow has four terminals (T1, T2, T3, and T5) and offers an extensive network of direct flights to destinations worldwide. The airport is well-connected to Harrow by public transportation, including the Piccadilly line on the London Underground and the Heathrow Express rail service. For those traveling by car, Heathrow is easily accessible via the M4 and M25 motorways.

London City Airport (LCY)

London City Airport, situated approximately 18 miles east of Harrow, is a smaller but conveniently located airport. It primarily caters to business travelers and offers a range of domestic and European flights. London City Airport has a single terminal and is known for its proximity to the City of London financial district. It is accessible by the Docklands Light Railway (DLR) and by taxi or private hire vehicles. While London City Airport may not offer as many direct flights as Heathrow, it can be a more convenient option for those traveling to or from central London.

Harrow Borough

Harrow is a borough in northwest London, England. It comprises the historic market town of Harrow-on-the-Hill and surrounding areas. The borough is known for its prestigious public schools, including Harrow School, founded in 1572 and one of the country’s oldest and most respected educational institutions. Harrow also features numerous green spaces, such as Harrow Park and Weald Country Park, offering recreational opportunities and scenic vistas.

Harrow Town Centre

The heart of Harrow is Harrow Town Centre, a vibrant commercial and entertainment hub. It boasts numerous shopping malls, including St. George’s Shopping Centre and The Hive, offering a wide range of retail options. The town centre is also home to a variety of restaurants, cafes, and bars, catering to diverse tastes and preferences. Additionally, Harrow Arts Centre is a prominent cultural venue hosting performances, exhibitions, and workshops.