St. George Climate & Monthly Temperature Overview – United States

Summer

St. George, Utah experiences scorching summers, with average high temperatures reaching up to 100 degrees Fahrenheit (38 degrees Celsius) in July and August. The city receives minimal rainfall during this season, creating a dry and arid environment. The intense heat and lack of moisture can be oppressive for those not accustomed to such conditions. However, the evenings offer some respite, with temperatures generally dropping into the mid-70s (low 20s Celsius).

Winter

In contrast to the sweltering summers, St. George’s winters are mild and dry. The average high temperature in January, the coldest month, is a pleasant 55 degrees Fahrenheit (13 degrees Celsius). The city experiences occasional snowfall, but it typically melts quickly. Nighttime temperatures can dip below freezing, but rarely fall below 32 degrees Fahrenheit (0 degrees Celsius). The lack of extreme cold and abundant sunshine make St. George an attractive destination for snowbirds and those seeking a warmer climate during the winter months.

Summer in St. George

St. George, located in the southwestern United States, experiences extreme heat during the summer months. The average daily temperature in July, the hottest month, hovers around 98°F (36.7°C). The city often faces temperatures exceeding 100°F (37.8°C) throughout the summer, with little relief at night. The combination of high temperatures and low humidity creates an arid climate, making it essential for residents and visitors to stay hydrated and seek shade during peak heat hours.

Winter in St. George

In contrast to its scorching summers, St. George enjoys mild winters. The average temperature in January, the coldest month, is a comfortable 45°F (7.2°C). Nighttime temperatures can drop below freezing, but daytime temperatures typically stay above freezing. The city receives little precipitation during winter, making it a relatively dry season. However, occasional cold fronts can bring wind and rain, providing a brief respite from the arid conditions.

Cloud Types and Patterns in St. George, United States

St. George, Utah, experiences a diverse range of cloud formations due to its unique geographical location and climate patterns. Predominant cloud types include cumulus, stratus, and cirrus. Cumulus clouds are characterized by their puffy and bulging appearance, and are often observed during fair weather conditions. Stratus clouds form a uniform, sheet-like layer that covers the sky, frequently associated with overcast or rainy weather. Cirrus clouds, on the other hand, are thin and wispy, appearing as streaks or filaments high in the atmosphere.

Seasonal Variations and Weather Implications

Cloud patterns and coverage in St. George vary significantly throughout the year. During the summer months, cumulus clouds are abundant, often developing into towering cumulonimbus clouds that bring occasional thunderstorms. In contrast, winter brings more frequent overcast conditions with stratus clouds, accompanied by snowfall or drizzle. Spring and autumn witness a mixture of cloud types, ranging from patchy cumulus to layered cirrus, reflecting the transitional weather conditions experienced during these seasons.

Annual Precipitation

St. George, located in the arid southwestern United States, experiences an average annual precipitation of 8.4 inches (213 mm). This amount is significantly lower than the national average of 39.4 inches (1001 mm), reflecting the area’s desert climate. Precipitation is distributed unevenly throughout the year, with the majority occurring during the winter months. The wettest month is January, with an average of 1.2 inches (30 mm) of rain. In contrast, the driest months are June and July, which receive less than 0.5 inches (13 mm) of rainfall each.

Precipitation Patterns

The primary source of precipitation in St. George is frontal systems associated with winter storms that move across the region. These storms bring cold, moist air from the Pacific Ocean and can produce rain or snow. Occasionally, thunderstorms may occur during the summer months, but these are typically brief and isolated. Convective rainfall, caused by the rising of warm, humid air, is also rare. Due to the arid conditions and infrequent precipitation events, droughts are common in St. George and can persist for extended periods of time. The lack of significant precipitation has implications for water resources, agriculture, and overall ecosystem health in the region.

Annual Rainfall Patterns

St. George, a city in southwestern Utah, United States, experiences a unique annual rainfall pattern characterized by low precipitation throughout the year. The total average annual rainfall in the city is approximately 10 inches (254 millimeters), making it one of the driest regions in North America. Summer months receive the highest rainfall, with July and August accounting for around 30% of the annual precipitation. However, even during the wettest months, rainfall is often sporadic and unpredictable, with intermittent showers rather than prolonged periods of rain.

Seasonal Variations

St. George experiences significant seasonal variations in rainfall. Winter months, from November to March, are typically the driest, with average monthly rainfall below 0.5 inches (13 millimeters). During these months, precipitation usually occurs in the form of isolated showers or occasional light snowfall. Spring and autumn are transitional periods, with rainfall increasing gradually from March to May and decreasing from September to November. May and September are the driest months, each receiving an average of less than 0.25 inches (6 millimeters) of precipitation. Summer months, from June to August, bring the wettest conditions, with thunderstorms becoming more frequent.

Causes of Snowfall in St. George, United States

Snowfall in St. George, Utah, is a relatively rare occurrence due to the city’s desert climate. However, when it does snow, it is typically caused by a combination of factors. One key factor is the presence of cold air. During winter months, the temperature in St. George can drop to freezing or below, creating the necessary conditions for snow formation. When cold air interacts with moisture in the atmosphere, such as water vapor or clouds, it can cause the moisture to condense and freeze into snowflakes.

Another factor contributing to snowfall in St. George is the influence of weather systems. When a cold front or storm system moves through the area, it can bring with it moisture and precipitation, which can lead to snow if the temperature is cold enough. In some cases, these storm systems can also cause strong winds, which can help to lift moisture higher into the atmosphere where it can freeze and form clouds. These clouds can then release snow as precipitation.

Impact of Snowfall in St. George, United States

Snowfall in St. George can have a significant impact on the city and its residents. When snowfall is heavy, it can disrupt transportation, causing road closures and delays. This can be particularly problematic for commuters and travelers, as well as for emergency services. Snowfall can also lead to power outages, as trees and power lines can become weighed down and damaged by the weight of the snow. This can disrupt essential services and make it difficult for residents to stay warm and comfortable in their homes.

In addition to its impact on transportation and infrastructure, snowfall can also affect the local environment. Snow can insulate the ground, preventing it from freezing as deeply as it would otherwise. This can help to protect plants and animals from the cold, especially during extreme winter weather events. Snow can also provide moisture to the soil, which can be beneficial for plant growth during the spring and summer months. However, heavy snowfall can also damage vegetation, especially if it accumulates on trees and shrubs.

Climate and Weather in St. George

St. George, Utah, boasts a uniquely dry and sunny climate, with an average of 300 sunny days annually. The city experiences hot summers with average highs in the upper 90s °F (high 30s °C) and cool winters with average lows in the mid-30s °F (2 °C). The average annual precipitation is a mere 6 inches (15 cm), with most of it falling during the winter months. The low humidity levels make the heat and cold feel more tolerable year-round.

Outdoor Recreation in St. George

The abundance of sunshine in St. George provides ample opportunities for outdoor recreation. The city is known for its stunning red rock canyons and desert landscapes, which attract hikers, bikers, and climbers from around the world. The Virgin River Gorge offers scenic trails for hiking and biking, while the Sand Hollow State Recreation Area features ATV trails and a reservoir for boating and swimming. Golf enthusiasts will find several championship courses in and around St. George, and the nearby Zion National Park offers breathtaking hikes and scenic drives. The year-round sunshine makes it possible to enjoy these activities almost any time of year.

Current Moon Phase in St. George, United States

St. George, United States, is currently experiencing a Waxing Gibbous moon phase. This phase occurs when the moon is more than half illuminated but has not yet reached the full moon stage. During this phase, the moon appears to be growing larger and brighter each night. The current moon phase in St. George began on February 15, 2023, and will last until February 19, 2023, when the moon transitions to the Full Moon phase.

Moonrise and Moonset Times in St. George, United States

The moonrise and moonset times in St. George, United States, vary throughout the month. On February 17, 2023, the moon will rise at 5:17 PM and set at 5:54 AM. These times may change slightly depending on the day and the observer’s location within St. George. To obtain the most accurate moonrise and moonset times for your specific location, it is recommended to consult a reputable astronomy website or mobile application.

Seasonal Humidity Patterns

St. George, Utah experiences significant seasonal variations in humidity levels. During the summer months (June to September), the city is characterized by low relative humidity, typically ranging from 15% to 30%. This aridity is primarily due to the city’s desert climate, with hot, dry summers and warm, dry winters. The low humidity levels are often accompanied by clear skies and minimal precipitation.

Summer and Winter Humidity

In contrast to the summer, St. George experiences higher humidity levels during the winter months (October to May). However, the humidity remains relatively low compared to other parts of the country. Relative humidity levels typically range from 30% to 50% during these months, contributing to a cooler and more comfortable atmosphere. The primary source of moisture during the winter is precipitation in the form of rain or snow.

Wind Patterns

St. George, Utah is situated in a valley surrounded by mountains, which influences its wind patterns. The city’s prevailing wind direction is from the southwest, influenced by the prevailing airflow in the region. Additionally, topographic features such as the Hurricane Cliffs and Virgin River Gorge can create localized wind patterns, including channeling winds and wind shear. During the summer months, thermal updrafts can lead to daytime heating and upslope breezes, while cooler temperatures and downslope breezes occur during the evening.

Wind Speed and Variability

The average wind speed in St. George is moderate, around 5-10 mph. Wind speeds tend to be highest during the spring and summer months as a result of stronger pressure gradients and increased convective activity. The city also experiences occasional strong winds, known as gusts, which can reach speeds of over 30 mph. Gusts are most common during the winter months, when cold fronts interact with warm air from the Gulf of Mexico, creating instability and high pressure gradients.

Spring and Fall: Ideal Conditions for Exploration and Outdoor Adventure

Spring and fall beckon adventurers to St. George with moderate temperatures, making it the perfect time for hiking, biking, and exploring the surrounding canyons and trails. The vibrant greenery of spring creates a picturesque backdrop for outdoor pursuits, while the crisp autumn air invigorates the senses. The shoulder seasons also offer opportunities for wildlife viewing, as animals become more active during milder temperatures.

Summer: Adventure Amidst Warmth and Sunshine

For those seeking warmth and sunshine, summer reigns supreme in St. George. Temperatures soar to the high 90s but are tempered by low humidity, creating comfortable conditions for swimming, boating, and sunbathing at Snow Canyon State Park or Quail Creek Reservoir. Evenings bring a refreshing respite, perfect for enjoying live music or dining al fresco. Summer also boasts the city’s renowned Ironman triathlon, attracting athletes from around the globe.

Solar Potential and Resources

St. George, nestled in the heart of Utah’s desert landscape, boasts an abundance of solar resources. The city experiences an average of 300 sunny days per year, with solar radiation levels reaching up to 6.5 kilowatt-hours per square meter per day. This exceptional solar potential makes St. George an ideal location for harnessing the sun’s energy.

Solar Installations and Benefits

Recognizing its solar potential, St. George has been actively promoting the adoption of solar energy. The city has installed numerous solar arrays on public buildings, including the St. George Recreation Center and the Dixie Convention Center. These installations have significantly reduced the city’s carbon footprint, while also providing cost savings on energy bills. Additionally, St. George has implemented policies and incentives to encourage residential and commercial solar installations, contributing to the city’s goal of becoming carbon neutral by 2050. The growth of solar energy in St. George has created economic opportunities and jobs in the local renewable energy industry.

Mountains and Hills

St. George is nestled amidst a picturesque array of mountains and hills that shape its unique topography. The Pine Valley Mountains rise majestically to the north, offering stunning views of the city and surrounding desert landscapes. Overlooking the downtown area, the Red Cliffs Desert Reserve boasts mesas, buttes, and canyons, providing a haven for hikers and nature enthusiasts. Additionally, the Tushar Mountains, located approximately 40 miles northeast, create a dramatic backdrop with their snow-capped peaks and pristine alpine lakes.

Sand Dunes and Plateaus

The topography of St. George is also characterized by vast sand dunes and plateaus. The Coral Pink Sand Dunes State Park, situated just outside the city limits, features towering dunes of vibrant red and pink sand. These dunes, formed over millions of years from Navajo sandstone, offer a surreal and breathtaking experience for visitors. To the west, the Kolob Canyons section of Zion National Park encompasses a series of high plateaus, including the Kolob Plateau, which provides panoramic vistas of the surrounding landscape and the iconic red rock formations of Zion Canyon.

St. George Municipal Airport

St. George Municipal Airport (SGU) is the closest airport to the city of St. George, Utah. It is located approximately 5 miles (8 kilometers) south of the city center and is the primary airport serving the St. George metropolitan area. The airport has one runway, which is 8,402 feet (2,561 meters) long and can accommodate a wide range of aircraft, including commercial jets, private planes, and military aircraft. SGU offers a range of services, including commercial flights to major hubs such as Denver, Phoenix, and Salt Lake City, as well as private charters and general aviation services.

Salt Lake City International Airport

While St. George Municipal Airport is the closest airport to the city, Salt Lake City International Airport (SLC) is the largest airport in the state of Utah and offers a wider range of flights and destinations. It is located approximately 300 miles (480 kilometers) north of St. George and can be reached by car or by connecting flights from SGU. SLC is a major hub for Delta Air Lines and offers direct flights to over 100 destinations worldwide, including major cities in the United States, as well as international destinations in Europe, Asia, and South America.

History of St. George

Established in 1861 by Mormon pioneers, St. George holds the distinction of being Utah’s oldest city. Known as the “Dixie of Utah,” its unique red rock formations, arid climate, and abundant water sources attracted settlers who cultivated cotton and other cash crops. Over the years, St. George has evolved from an agricultural hub to a thriving tourism destination, drawing visitors with its stunning natural landscapes and historical legacy.

Culture and Attractions

St. George offers a vibrant cultural scene and an array of attractions. The St. George Arts Festival showcases the works of local and regional artists, while the Tabernacle hosts concerts and performances throughout the year. The Red Hills Desert Garden presents an array of native plant species, providing a glimpse into the area’s diverse ecosystem. For outdoor enthusiasts, Zion National Park and Bryce Canyon National Park are within easy driving distance, offering breathtaking hiking, rock climbing, and wildlife viewing opportunities. Additionally, the city boasts numerous golf courses, museums, and historical sites, inviting both locals and tourists to immerse themselves in the region’s rich history and natural beauty.