Saint George
Utah, USA
Long-term weather forecast
Long-term weather forecast

May weather forecast and climate
Saint George, UT

The last month of the spring, May, is a warm month in Saint George, Utah, with average temperature ranging between min 55.2°F (12.9°C) and max 77.4°F (25.2°C).

Temperature

In May, the average high-temperature increases, from a pleasant 68.4°F (20.2°C) in April, to a warm 77.4°F (25.2°C). The average low-temperature, in Saint George, is 55.2°F (12.9°C).

Humidity

In May, the average relative humidity is 26%.

Rainfall

In Saint George, during May, the rain falls for 4.5 days and regularly aggregates up to 0.28" (7mm) of precipitation. Throughout the year, in Saint George, Utah, there are 66.6 rainfall days, and 6.97" (177mm) of precipitation is accumulated.

Snowfall

March through October are months without snowfall in Saint George.

Daylight

In Saint George, the average length of the day is 14.2h.

Sunshine

In Saint George, the average sunshine in May is 11.6h.

UV index

The average daily maximum UV index in Saint George is 6. A UV Index of 6 to 7 symbolizes a high health hazard from the exposure to the Sun's UV radiation for average individuals.
Note: The average daily UV index of 6 in May transform into the following instructions:
Take precautions against overexposure. Protection against sun damage is needed. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.

What is the temperature in May in Saint George?

The average high-temperature, in May, in Saint George, is 77.4°F (25.2°C), while the average low-temperature is 55.2°F (12.9°C).

What is the average humidity in May in Saint George?

The average relative humidity in May in Saint George is 26%.

How much does it rain in Saint George in May?

In Saint George, Utah, in May, it is raining for 4.5 days, with typically 0.28" (7mm) of accumulated precipitation.

When it does not snow in Saint George?

March through October are months without snowfall.

How many hours of daylight does Saint George have in May?

The average length of the day in May in Saint George is 14.2h.

How long on average sun shines in May in Saint George?

In Saint George, the average sunshine in May is 11.6h.

What is the UV index intensity in May in Saint George?

The average daily maximum UV index in May in Saint George, Utah, is 6. A UV Index reading of 6 to 7 represents a high health risk from the exposure to the Sun's UV rays.
Average temperature in May - Saint George, UT
  • Average high temperature in May: 77.4°F

The warmest month (with the highest average high temperature) is July (93.9°F).
The month with the lowest average high temperature is December (47.7°F).

  • Average low temperature in May: 55.2°F

The month with the highest average low temperature is July (72.3°F).
The coldest month (with the lowest average low temperature) is December (31.6°F).

Average humidity in May - Saint George, UT
  • Average humidity in May: 26%

The month with the highest relative humidity is January (59%).
The month with the lowest relative humidity is June (18%).

Average rainfall in May - Saint George, UT
  • Average rainfall in May: 0.28"

The wettest month (with the highest rainfall) is March (0.98").
The driest month (with the lowest rainfall) is June (0.12").

Average rainfall days in May - Saint George, UT
  • Average rainfall days in May: 4.5 days

The month with the highest number of rainy days is March (8.3 days).
The month with the lowest number of rainy days is June (1.8 days).

Average snowfall in May - Saint George, UT
  • Average snowfall in May: 0"

The month with the highest snowfall is February (0.2").
Months with the lowest snowfall are March, April, May, June, July, August, September and October (0").

Average snowfall days in May - Saint George, UT
  • Average snowfall days in May: 0 days

The month with the highest number of snowfall days is December (0.8 days).
Months with the lowest number of snowfall days are April, May, June, July, August, September and October (0 days).

Average daylight in May / Average sunshine in May - Saint George, UT
  • Average daylight in May: 14.2h

The month with the longest days is June (Average daylight: 14.7h).
The month with shortest days is December (Average daylight: 9.7h).

  • Average sunshine in May: 11.6h

Months with most sunshine are June and July (Average sunshine: 11.9h).
The month with least sunshine is December (Average sunshine: 7h).

Average UV index in May - Saint George, UT
  • Average UV index in May: 6

Months with the highest UV index are June, July and August (UV index 7).
The month with the lowest UV index is December (UV index 2).