Roy
Utah, USA
Long-term weather forecast
Long-term weather forecast

Monthly weather forecast and climate
Roy, UT

January, like December, in Roy, Utah, is another cold winter month, with average temperature varying between 21.6°F (-5.8°C) and 33.4°F (0.8°C). The coldest month is January, with an average high-temperature of 33.4°F (0.8°C) and an average low-temperature of 21.6°F (-5.8°C). Weather in January »

The last month of the winter, February, is another cold month in Roy, Utah, with average temperature varying between 25.2°F (-3.8°C) and 37.2°F (2.9°C). In Roy, the average high-temperature is practically the same as in January - a still wintry 37.2°F (2.9°C). Weather in February »

The first month of the spring, March, is a chilly month in Roy, Utah, with average temperature fluctuating between 45.7°F (7.6°C) and 32.5°F (0.3°C). In Roy, the average high-temperature in March marginally rises, from a cold 37.2°F (2.9°C) in February, to a chilly 45.7°F (7.6°C). Weather in March »

April is a fresh spring month in Roy, Utah, with average temperature varying between 37.4°F (3°C) and 52.7°F (11.5°C). In Roy, the average high-temperature in April marginally rises, from a chilly 45.7°F (7.6°C) in March, to a cool 52.7°F (11.5°C). Weather in April »

May, the last month of the spring, in Roy, is an enjoyable month, with average temperature varying between 62.8°F (17.1°C) and 43.5°F (6.4°C). In May, the average high-temperature rises, from a cool 52.7°F (11.5°C) in April, to a comfortable 62.8°F (17.1°C). Weather in May »

June, the first month of the summer, in Roy, is a warm month, with average temperature varying between 74.3°F (23.5°C) and 52°F (11.1°C). In June, the average high-temperature increases, from a comfortable 62.8°F (17.1°C) in May, to a warm 74.3°F (23.5°C). Weather in June »

July, like June, in Roy, Utah, is another warm summer month, with average temperature varying between 60.4°F (15.8°C) and 83.8°F (28.8°C). July is the warmest month, with an average high-temperature of 83.8°F (28.8°C) and an average low-temperature of 60.4°F (15.8°C). Weather in July »

August, the last month of the summer, in Roy, is also a moderately hot month, with average temperature ranging between min 60.1°F (15.6°C) and max 81.9°F (27.7°C). In August, the average high-temperature is almost the same as in July - a still warm 81.9°F (27.7°C). Weather in August »

The first month of the autumn, September, is also an agreeable month in Roy, Utah, with temperature in the range of an average high of 72.5°F (22.5°C) and an average low of 52.7°F (11.5°C). In September, the average high-temperature decreases, from a warm 81.9°F (27.7°C) in August, to an agreeable 72.5°F (22.5°C). Weather in September »

October, like September, is another mild autumn month in Roy, Utah, with average temperature ranging between min 41.5°F (5.3°C) and max 56.8°F (13.8°C). In Roy, Utah, the average high-temperature in October significantly decreases, from a pleasant 72.5°F (22.5°C) in September, to a mild 56.8°F (13.8°C). Weather in October »

November, the last month of the autumn, in Roy, is also a frosty month, with average temperature varying between 32.2°F (0.1°C) and 45.5°F (7.5°C). In Roy, the average high-temperature drops, from a mild 56.8°F (13.8°C) in October, to a chilly 45.5°F (7.5°C). Weather in November »

December, the first month of the winter, in Roy, is also a wintry month, with average temperature varying between 34°F (1.1°C) and 23.4°F (-4.8°C). In December, the average high-temperature decreases, from a chilly 45.5°F (7.5°C) in November, to a cold 34°F (1.1°C). Weather in December »

What is the coldest month in Roy?

January is the coldest month, with an average high-temperature of 33.4°F (0.8°C) and an average low-temperature of 21.6°F (-5.8°C).

What is the most humid month in Roy?

The most humid month is January, with an average relative humidity of 83%.

How many days does it rain in Roy?

In Roy, Utah, during the entire year, the rain falls for 91.6 days and collects up to 11.06" (281mm) of precipitation.

When does it snow in Roy?

January through May, September through December are months with snowfall in Roy.

How much does it snow in Roy?

Throughout the year, there are 37.8 snowfall days, and 24.76" (629mm) of snow is accumulated.

When does it snow the most in Roy?

January is the month with the most snowfall in Roy. Snow falls for 8.8 days and accumulates 6.89" (175mm) of snow.

What is the month with the least sunshine in Roy?

The month with the least sunshine in Roy is January, with an average of 5.6h of sunshine.

When is the lowest UV index in Roy?

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Roy.

What is the rainiest month in Roy?

The month with the most rainfall is April when the rain falls for 12.2 days and typically aggregates up to 1.26" (32mm) of precipitation.

When it does not snow in Roy?

In Roy, Utah, snow does not fall in June through August.

When are the longest days in Roy?

The month with the longest days is June, with an average of 15.1h of daylight.

What are the months with the most sunshine in Roy?

Months with the most sunshine in Roy are June through August, with an average of 11.9h of sunshine.

What are the months with the highest UV index in Roy?

June through August, with an average maximum UV index of 6, are months with the highest UV index in Roy.

What is the warmest month in Roy?

The warmest month in Roy is July, with an average high-temperature of 83.8°F (28.8°C) and an average low-temperature of 60.4°F (15.8°C).

What is the least humid month in Roy?

With an average relative humidity of 37%, July is the least humid month.

What is the driest month in Roy?

July is the month with the least rainfall. Rain falls for 6.3 days and accumulates 0.43" (11mm) of precipitation.

What is the month with the shortest days in Roy?

With an average of 9.3h of daylight, December has the shortest days of the year in Roy.
Average rainfall - Roy, UT
Average rainfall days - Roy, UT

The month with the highest number of rainy days is May (12.5 days).
The month with the lowest number of rainy days is January (4.6 days).

Average snowfall - Roy, UT
Average snowfall days - Roy, UT

The month with the highest number of snowfall days is January (8.8 days).
Months with the lowest number of snowfall days are June, July and August (0 days).

Average daylight / Average sunshine - Roy, UT

The month with the longest days is June (Average daylight: 15.1h).
The month with shortest days is December (Average daylight: 9.3h).

Months with most sunshine are June, July and August (Average sunshine: 11.9h).
The month with least sunshine is January (Average sunshine: 5.6h).

Average UV index - Roy, UT