Climate and monthly weather forecastRoy, UT

The climate of Roy

Located in Utah, USA, the overall climate of Roy, falls under the Köppen climate classification 'Csa'. This typology is primarily characterized by a Mediterranean nature, with a hot summer season. Extreme temperatures throughout the year are observed from 21.6°F (-5.8°C) to 83.8°F (28.8°C). Humidity levels range significantly from 37% to 83% throughout the year. The climatic factors contributing to these conditions include the amount of sunlight received, wind patterns, and rainfall levels.

Examining the weather data closely, the fluctuation range for temperature registers between 21.6°F (-5.8°C) during the low months and reaching up to 83.8°F (28.8°C) during the hottest months. The humidity, conversely, is the highest in the beginning and at the end of the year, with the lowest recorded during the middle of the year, reinforcing the Mediterranean nature of the climate. Rainfall levels also fluctuate significantly, starting at 1.14" (29mm) and dipping to 0.43" (11mm) in the driest month.

A distinguishing feature of the Roy climate is the presence of snowfall during a significant part of the year, with it starting in December at 6.89" (175mm), diminishing subsequently and trickling down to trace levels by the end of May, before it recommences in November. The distinct presence of snowfall sets a unique pattern in this geographic location.

The best time to visit Roy

Factoring in all aspects of the climate, including temperatures, sunshine hours, and rainfall, the most optimal period to visit Roy is projected to be between June and August. These summer months are typified by an agreeable range of average high temperatures from 74.3°F (23.5°C) to 81.9°F (27.7°C), optimal for outdoor activities. Complementing the warmer temperatures, the city receives extended sunshine, hovering between 11.9 to 14.8 daylight hours per day.

Additionally, with minimal rainfall, an average of 0.43" (11mm) to 0.47" (12mm), and relatively lower humidity, from 37% to 38%, this period ensures an enjoyable experience for visitors. Moreover, wind speeds remain stable, averaging around 6mph (9.7km/h), reinforcing this period as the most conducive for tourism.

The worst time to visit Roy

Considering weather conditions, specifically temperatures, precipitation, and sunshine, the least favorable time for a visit to Roy would typically be from December to February. The temperature gradient during this period fluctuates from an average high of 33.4°F (0.8°C) to 37.2°F (2.9°C) to a low of 21.6°F (-5.8°C) to 25.2°F (-3.8°C), marking it as the coldest time of the year.

Along with low temperatures, this period also experiences snowfall, with an average accumulation ranging from 4.37" (111mm) to 6.89" (175mm) across these months. Additionally, the daylight hours decrease significantly to an average range from 9.3 to 10.7 hours per day, with lower amounts of sunshine, 5.6 to 6.8 hours per day. These conditions are further exacerbated by high humidity levels, averaging 78% to 83%.

Spring weather in Roy

Spring ushers in a significant change in weather conditions in Roy, transitioning from the colder months. During this season, spanning March, April, and May, average high temperatures move from 45.7°F (7.6°C) to 62.8°F (17.1°C), and lows from 32.5°F (0.3°C) to 43.5°F (6.4°C). This period also sees a decrease in snowfall from 3.15" (80mm) to zero by the end of May.

Humidity reduces drastically during this period from 69% to 53%, with rainfall levels oscillating between 1.02" (26mm) and 1.14" (29mm). Daylight hours increase from 12 hours to 14.5 hours with extended sunshine hours from 8.5 hours to 11.1 hours, making this an agreeable season to visit Roy.

Summer weather in Roy

Roy's summer months, June through August, are marked by the warmest temperatures, the longest days, and the least amounts of rainfall. The high summer temperatures range from 74.3°F (23.5°C) to 83.8°F (28.8°C) with lows from 52°F (11.1°C) to 60.4°F (15.8°C). Relative humidity drops to the lowest levels of the year, ranging from 37% to 38%, with an average rainfall of around 0.43" (11mm) to 0.47" (12mm), the lowest of the year.

Sunshine hours reach their peak, from 11.9 to 14.8 daylight hours per day, this along with least average rain makes summer in Roy a period of prolonged clear skies.

Autumn weather in Roy

Autumn in Roy witnesses a gradual decrease in temperatures, with average highs moving down from 72.5°F (22.5°C) in September to 45.5°F (7.5°C) in November and lows, from 52.7°F (11.5°C) to 32.2°F (0.1°C). While the humidity begins to increase again, moving from 44% to 64%, rainfall levels hold steady from 0.98" (25mm) to 0.83" (21mm).

Daylight hours diminish from 12.5 hours in September to 9.9 hours in November, but this season also witnesses the re-emergence of snowfall, albeit at very minimal rates, starting at 0.39" (10mm) in September and increasing to 2.68" (68mm) by the end of November.

Winter weather in Roy

During winter from December to February, Roy experiences the coldest temperatures of the year as well as significant snowfall. High winter temperatures oscillate between 33.4°F (0.8°C) to 37.2°F (2.9°C), with lows ranging from 21.6°F (-5.8°C) to 25.2°F (-3.8°C). Roy sees a high relative humidity during this season, from 77% to 83%.

Heightened snowfall is characteristic of this season with amounts varying from 4.37" (111mm) in December to 5.43" (138mm) in February. Daylight hours are the shortest during this time of the year, offering only from 9.3 hours to 10.7 hours of day light. Despite these conditions, this winter period bestows a distinct charm to Roy, particularly appealing to those with a fondness for winter sports and activities.

Weather in January

January sees Roy, Utah enveloped in chilling temperatures, reinforcing its place as one of the coldest months of the year. Icy winds bring the average low temperature to 21.6°F (-5.8°C), and snowfall reaches its peak at 6.89" (175mm). Weather in January »

Weather in February

The icy grip of winter persists through February, although a slight alleviation occurs in comparison to January's brutal cold. Despite the mercury rising to an average high of 37.2°F (2.9°C), it is still deemed a cold month. Weather in February »

Weather in March

March marks a significant deviation from winter’s extreme cold temperatures. A visible increase in temperature--going as high as 45.7°F (7.6°C)--exemplifies this change. Concurrently, snowfall captures a steady downtrend, culminating in a much-anticipated interaction with spring. Weather in March »

Weather in April

April embodies a predictable rise in temperature and weather conditions associated with spring. Snowfall drops to a mere 1.22" (31mm), while rainfall mildly increases, making for damp yet warming conditions. Showers nourish the soil, following which blooming flowers grace the landscapes. Weather in April »

Weather in May

May in Roy, Utah, brings a moderating effect on the temperature, reaching a comfortable high of 62.8°F (17.1°C). With daylight hours rising above 14 hours a day, longer sun exposure becomes more frequent. Meanwhile, snowfall virtually ceases to exist, signaling a definitive end to winter. Weather in May »

Weather in June

June presents clear, warm, and sunny weather conditions in Roy. Summer arrives with the highest relative visibility of 6 miles, making sky-gazing activities prevalent among enthusiasts. While the temperature rises, humidity, on the contrary, starts to decline. Weather in June »

Weather in July

July stands as the pinnacle of the summer season, bringing the highest temperatures experienced throughout the year. Emphasizing this summer peak, average high temperatures rise to a sweltering 83.8°F (28.8°C). Despite the heat, humidity remains relatively low, making the days more bearable. Weather in July »

Weather in August

August shadows the peak heat of July but sustains the summer warmth, encouraging continued outdoor activities. Despite some cooling, the atmosphere remains balmy, with temperatures maintaining their place in the 80s. However, increased cloud coverage starts animating the skies, hinting at the approaching autumn season. Weather in August »

Weather in September

September in Roy delineates a noticeable reduction in the summer heat, with a significant cooling effect—as temperatures decrease to a modest 72.5°F (22.5°C)—from the preceding summer months. The beginning of fall characterizes this month, with days gradually becoming shorter. Weather in September »

Weather in October

October marks the rapid transition from warm to cool as Autumn takes hold in Roy. Leaf-peepers can enjoy the vibrant colors of changing foliage, outstanding against the backdrop of increasingly chilly days. Though October holds onto mild, shorter days, the brisk nights warn of winter's impending arrival. Weather in October »

Weather in November

The cool temperatures of November bring the city of Roy into a wintry embrace. Substantial temperature drops occur as the average low plunges to 32.2°F (0.1°C), a stark contrast to previous months. The decrease in daytime hours reflects a grayer yet starker beauty, underlined by the return of snow, albeit minimal. Weather in November »

Weather in December

In December, winter inevitably sets in, marking its arrival with a renewed flurry of snow. The average high temperature declines to 34°F (1.1°C), while snowfall increases to 4.37" (111mm), second only to January's peak. The city lights up with holiday decorations, providing a dazzling contrast to the snow-dusted landscapes. Weather in December »