Roswell Climate & Monthly Temperature Overview – United States

Summer

Roswell, located in New Mexico, experiences scorching and dry summers. Temperatures consistently soar above 90°F (32°C), with humidity levels often remaining low. The sun shines brightly for extended periods, resulting in intense heat. Rainfall is sparse during this season, with occasional thunderstorms providing brief respite from the arid conditions. The average high temperature in July and August, the warmest months, hovers around 95°F (35°C), while the average low temperature dips to a still-warm 65°F (18°C).

Winter

In contrast to the sweltering summers, winters in Roswell are characterized by cold and dry conditions. Temperatures can drop below freezing at night, averaging around 25°F (-4°C) in January, the coldest month. Snowfall is infrequent, but when it occurs, it tends to accumulate quickly. The skies are often clear during this season, allowing for plenty of sunshine. However, strong winds can occasionally whip up, intensifying the cold and making it feel even chillier.

Average Temperature in Roswell, United States

Roswell, situated in the southeastern region of New Mexico, falls within the state’s high desert/semi-arid climate zone. The city experiences hot summers with an average high temperature ranging from 85°F to 95°F (29°C to 35°C) during the warmest months of June, July, and August. Conversely, winters are moderately cold, with average low temperatures dipping below freezing, typically in the range of 20°F to 30°F (-7°C to -1°C) during December and January.

On an annual basis, Roswell’s average temperature is approximately 59°F (15°C), with the warmest months being May through September, where temperatures hover around 70°F (21°C) or higher. Precipitation levels are generally low throughout the year, with an annual average of only about 14 inches (36 cm). The city’s semi-arid climate is characterized by hot, dry summers and mild, dry winters with occasional snowfall. However, due to its location at a high elevation of around 3,600 feet (1,100 meters), Roswell experiences a cooler climate compared to other cities in the region.

Cloud Cover and Types

Roswell, New Mexico, experiences a wide range of cloud cover throughout the year. On average, the city receives 7 inches of precipitation annually, with most falling during the summer months. During the winter, the skies are often clear, with only occasional clouds passing by. As spring arrives, cloud cover begins to increase, and by summer, the skies are often partly cloudy or overcast. This cloudiness helps to moderate the summer temperatures, keeping them from becoming too hot. In the fall, cloud cover decreases again, and by winter, the skies are once again mostly clear.

Roswell experiences a variety of cloud types, including cirrus, cumulus, stratus, and nimbus. Cirrus clouds are thin, wispy clouds that are made of ice crystals. They are often seen in the sky on clear days. Cumulus clouds are puffy clouds that look like cotton balls. They are often seen in the sky on fair-weather days. Stratus clouds are flat, gray clouds that cover the entire sky. They often produce drizzle or light rain. Nimbus clouds are dark, rain-producing clouds. They are often seen in the sky during storms.

Annual Precipitation

Roswell, located in the southwestern United States, receives an average of 14 inches (356 mm) of precipitation annually. This precipitation is distributed fairly evenly throughout the year, with slightly drier conditions from May to June. However, the summer months (July-September) can experience heavy rainfall associated with thunderstorms, known as the monsoon season. During this period, rainfall can be highly variable, with some years experiencing extensive flooding while others remain relatively dry.

Seasonal Variability

The winter months (December-February) are typically the driest in Roswell, with precipitation averaging around 1 inch (25 mm) per month. During this time, snowfall is infrequent, with accumulation on rare occasions. The spring months (March-May) bring slightly higher rainfall, averaging around 2 inches (50 mm) per month. As temperatures rise in the summer, precipitation increases, reaching a peak in July and August with monthly averages of 3-4 inches (75-100 mm). In September, rainfall begins to decline, transitioning into the drier autumn months (October-November) where precipitation averages around 1-2 inches (25-50 mm) per month.

Annual Rainfall Patterns

Roswell experiences distinct seasonal variations in rainfall, characterized by a bimodal distribution. During the summer months (June to August), the North American Monsoon brings significant precipitation to the region, resulting in frequent thunderstorms and heavy rainfall events. These monsoonal rains account for the first peak in Roswell’s annual rainfall pattern. The second peak occurs in the winter months (December to February), when the Pacific Jet Stream interacts with the storm track over the Gulf of Mexico, producing frequent rain showers. During this time, frontal systems and cold fronts often bring prolonged periods of light to moderate rainfall.

Seasonal Variability and Drought Conditions

Roswell’s annual rainfall exhibits considerable variability from year to year. The summer monsoons can be particularly unpredictable, with some years experiencing intense rainfall while others remain drier. The winter rainfall pattern is also prone to fluctuations, influenced by the strength and positioning of the Pacific Jet Stream. Additionally, Roswell is located in a semi-arid climate, with an average annual rainfall of approximately 14 inches. As a result, the region is susceptible to periods of drought, which can impact agriculture, water resources, and the local ecosystem. During these dry spells, rainfall can become scarce, leading to water shortages and environmental stress.

Snowfall History in Roswell

Roswell, New Mexico, has a relatively low average annual snowfall, typically around eight inches. However, significant snowfall events have occurred throughout its history. In January 1985, a record-breaking 19 inches of snow fell in the city, causing widespread disruption. Other notable snowfall events include 14 inches in December 1995 and 12 inches in January 2009. These events often lead to closures of schools and businesses, as well as treacherous driving conditions.

Impact of Snowfall on Roswell

While snowfall can create beautiful winter landscapes in Roswell, it can also pose challenges. Heavy snowfall can hinder transportation, causing traffic accidents and road closures. Snow and ice can also damage property, such as roofs and power lines. The city’s infrastructure, including schools and hospitals, can be affected by snowdrifts and impassable roads. Additionally, snowfall can disrupt local businesses, particularly those that rely on outdoor activities or deliveries. However, some businesses, such as snow removal services and ski resorts, benefit from snowfall events.

Sunrise and Sunset Times

Roswell, United States, experiences varying sunrise and sunset times throughout the year. During the winter solstice, the earliest sunrise occurs around 7:00 AM, while the latest sunset happens around 5:00 PM. Conversely, during the summer solstice, sunrise occurs around 6:00 AM, and sunset extends until approximately 8:30 PM. The day length in Roswell varies significantly, ranging from about 10 hours in December to over 14 hours in June.

Sun Angle and Intensity

The sun’s angle and intensity also fluctuate over the course of the year in Roswell. During the summer months, the sun reaches its highest point in the sky, resulting in longer days and more intense sunlight. The sun’s angle is at its lowest during the winter months, leading to shorter days and less intense sunlight. The city receives approximately 3,400 hours of sunshine annually, with the sunniest period being from May to September.

Moon Sighting in Roswell, United States

On July 9, 2023, residents of Roswell, New Mexico, witnessed an extraordinary celestial event: a rare and close encounter with the moon. The moon appeared exceptionally large and brilliant, hanging low in the sky, and cast an ethereal glow over the town. Its proximity and clarity allowed observers to discern intricate details on the lunar surface, including craters, mountains, and vast plains. The event drew crowds of onlookers who marveled at the stunning sight, capturing the moment in photographs and videos that were widely shared online.

Scientific Significance

The moon’s close approach to Roswell, known as a perigee, occurred during a full moon, creating an ideal scenario for astronomy enthusiasts and casual observers alike. The moon’s orbit around Earth is elliptical, resulting in variations in its distance from our planet. At perigee, the moon is at its closest point, approximately 225,621 miles from Earth. This unusual proximity made the moon appear about 14% larger and 30% brighter than average. The event provided a unique opportunity for scientific observations, as the moon’s composition and surface features could be studied in greater detail.

Seasonal Variability

Humidity levels in Roswell, United States, exhibit significant seasonal variations. During the summer months (June-August), the average relative humidity ranges from 55% to 70%. The peak humidity period typically occurs in July, with average values exceeding 65%. This high humidity often contributes to a muggy and oppressive feel, especially during the hottest hours of the day.

In contrast, winter months (December-February) in Roswell experience much lower humidity levels. The average relative humidity during this time drops to between 30% and 50%. The cold air has a lower capacity to hold moisture, resulting in a drier and less humid atmosphere. This season provides respite from the intense humidity of summer, making it a more comfortable time to be outdoors.

Diurnal Variations

Humidity levels in Roswell also vary throughout the day. Generally, humidity is highest in the early morning hours, as the cooler overnight temperatures allow the air to hold more moisture. As the day progresses and the temperature rises, the air’s capacity to hold moisture increases, leading to a decrease in relative humidity. The lowest humidity levels typically occur during the afternoon, when the temperature is at its peak.

Climate Conditions and Influence on Roswell’s Wind

Roswell, located in southeastern New Mexico, experiences a semi-arid climate characterized by hot summers and mild winters. The region is situated on the eastern slopes of the Rocky Mountains, which influences the city’s wind patterns. The mountains act as a barrier, blocking strong westerly winds and allowing calmer easterly winds to prevail. Additionally, Roswell’s location in the Tularosa Basin creates a microclimate that further reduces wind speed. On average, Roswell experiences relatively low wind speeds throughout the year, with an average annual wind speed of around 9 miles per hour.

Impact on Daily Life and Recreation

The moderate wind conditions in Roswell offer both advantages and challenges for daily life and recreation. The calm winds provide a comfortable environment for outdoor activities such as walking, cycling, and picnicking. However, during the summer months, the lack of wind can contribute to high temperatures and stagnant air, making it essential to stay well-hydrated and seek shaded areas when spending extended periods outdoors. Additionally, the low wind speeds can limit the effectiveness of wind energy generation, which is a potential source of renewable energy in the region. Nonetheless, the generally mild wind conditions in Roswell provide a favorable climate for most outdoor activities year-round, contributing to the city’s overall quality of life and recreational opportunities.

Best Time to Visit: Spring and Fall (March-May, September-November)

For those seeking the most pleasant weather conditions, spring and fall offer an ideal time to visit Roswell. With temperatures ranging from the mid-40s to mid-70s Fahrenheit, the moderate climate ensures comfortable outdoor activities without the scorching heat of summer or the frigid cold of winter. Additionally, the vibrant foliage during these seasons adds a picturesque charm to the town.

Summer (June-August)

Summer in Roswell brings sweltering heat, with temperatures regularly reaching the mid-80s to low 90s Fahrenheit. While the evenings offer some respite, it’s advisable to plan indoor activities or participate in early morning or late evening activities when the sun is less intense. Those visiting during this time should stay hydrated and seek shade during the warmest hours of the day.

Solar Potential:

Roswell, New Mexico, enjoys abundant sunshine year-round, making it an ideal location for solar energy development. The city receives an average of 280 sunny days per year, with a solar energy potential of approximately 5.5 kilowatt-hours per square meter per day (kWh/m2/day). This favorable solar resource makes Roswell a prime candidate for residential, commercial, and utility-scale solar projects.

Solar Initiatives:

The City of Roswell is committed to promoting solar energy as a sustainable and affordable energy source. The city has established a Solar Energy Advisory Committee to provide guidance on solar-friendly policies and programs. Roswell also offers various incentives to encourage solar adoption, including property tax abatements, expedited permitting, and net metering arrangements. Additionally, the city has partnered with local organizations to offer educational programs and workshops on solar energy benefits and technologies. These initiatives aim to foster a supportive environment for solar development and empower residents to harness the sun’s power.

Landforms and Elevation

Roswell, New Mexico, is situated in the southeastern part of the state, characterized by a varied topography. The city lies within the Pecos Valley, a broad, arid region surrounded by mountains and mesas. The elevation of Roswell ranges from approximately 3,500 to 4,000 feet above sea level. The surrounding region features numerous hills, canyons, and plateaus, including the Sierra Blanca and Sacramento Mountains to the east and the Guadalupe Mountains to the southwest. The city’s terrain offers a mix of flatlands and rolling hills, with gentle slopes and occasional steep inclines.

Geological Formations

The topography of Roswell is shaped by its geological formations, primarily the result of tectonic activity, erosion, and deposition over millions of years. The area is home to various rock types, including limestone, sandstone, and granite. The Pecos River, which flows through the city, has carved a canyon into the surrounding landscape, revealing layers of sedimentary rock. The region’s mesas and plateaus are remnants of ancient seabeds that have been uplifted and eroded over time. The Roswell Artesian Basin, an underground aquifer, lies beneath the city and provides a source of water for the region. The basin’s presence has contributed to the formation of sinkholes and other geological features within the Roswell area.

Roswell International Air Center (ROW)

Roswell International Air Center is the primary airport serving Roswell, New Mexico, United States. It is located approximately 8 miles (13 km) southwest of the city center, off of U.S. Highway 285. The airport has one paved runway, measuring 6,511 feet (1,985 m) in length and 100 feet (30 m) in width. It is designated as a general aviation airport by the Federal Aviation Administration (FAA).

Roswell International Air Center offers a variety of services to the public, including fuel, aircraft maintenance, and flight instruction. It is a popular destination for private pilots and aviation enthusiasts, and it also hosts several annual aviation events. The airport is also home to the New Mexico Museum of Space History, which features exhibits on space exploration and the history of the Roswell UFO incident.

History and UFO Sightings:

Roswell, New Mexico, gained international notoriety in 1947 with the alleged crash of a flying saucer and the subsequent government cover-up. The town has since become synonymous with UFO sightings and has attracted countless enthusiasts and conspiracy theorists over the years. The International UFO Museum and Research Center, located in Roswell, houses a vast collection of artifacts, exhibits, and research materials related to the UFO phenomenon. The town’s annual UFO Festival, held in July, draws thousands of visitors who come to witness skywatching events, participate in lectures, and engage with UFO experts.

Tourism and Economy:

Roswell’s connection to UFOs has transformed the town into a thriving tourist destination. In addition to the UFO museum, visitors can explore attractions such as the Roswell Space Center, which showcases space exploration exhibits and artifacts. The town also boasts numerous art galleries, antique shops, and restaurants that cater to the influx of visitors. The UFO-themed businesses and events have contributed significantly to Roswell’s economy, creating jobs and attracting investment. Tourism has also played a role in revitalizing the town’s historic downtown area, which features charming shops, quaint cafes, and historic buildings.