Sulphur
Oklahoma, USA
Long-term weather forecast
Long-term weather forecast

May weather forecast and climate
Sulphur, OK

The last month of the spring, May, is another warm month in Sulphur, Oklahoma, with temperature in the range of an average high of 80.6°F (27°C) and an average low of 59°F (15°C).

Temperature

In Sulphur, the average high-temperature slightly increases, from a moderately hot 73.4°F (23°C) in April, to a still warm 80.6°F (27°C). In May, the average low-temperature is 59°F (15°C).

Rainfall

The month with the most rainfall in Sulphur is May when the rain falls for 10 days and typically aggregates up to 5.8" (147mm) of precipitation.

Daylight

The average length of the day in May is 14h.

Sunshine

The average sunshine in May is 9h.

UV index

In May, the average daily maximum UV index in Sulphur, Oklahoma, is 9. A UV Index estimate of 8 to 10 represents a very high health vulnerability from the exposure to the Sun's UV radiation for the average person.
Note: In May, the average maximum UV index of 9 translate into the following recommendations:
Take extra precautions. Protection against sun damage is required. 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. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.

What is the temperature in May in Sulphur?

The average high-temperature, in May, in Sulphur, is 80.6°F (27°C), while the average low-temperature is 59°F (15°C).

How many days does it rain in May in Sulphur?

In Sulphur, Oklahoma, in May, it is raining for 10 days, with typically 5.8" (147mm) of accumulated precipitation.

What is the rainiest month in Sulphur?

The month with the most rainfall in Sulphur, Oklahoma, is May when the rain falls for 10 days and typically aggregates up to 5.8" (147mm) of precipitation.

How many hours of daylight does Sulphur have in May?

In Sulphur, the average length of the day in May is 14h.

How many hours of sunshine does Sulphur have in May?

In May, the average sunshine is 9h.

What is the UV index intensity in May in Sulphur?

The average daily maximum UV index in May in Sulphur is 9. A UV Index estimate of 8 to 10 represents a very high hazard to health from unprotected exposure to the UV radiation.
Average temperature in May - Sulphur, OK
  • Average high temperature in May: 81°F

Warmest months (with the highest average high temperature) are July and August (93°F).
The month with the lowest average high temperature is January (50°F).

  • Average low temperature in May: 59°F

Months with the highest average low temperature are July and August (70°F).
The coldest month (with the lowest average low temperature) is January (27°F).

Average rainfall in May - Sulphur, OK
  • Average rainfall in May: 5.8"

The wettest month (with the highest rainfall) is May (5.8").
The driest month (with the lowest rainfall) is January (1.6").

Average rainfall days in May - Sulphur, OK
  • Average rainfall days in May: 10 days

The month with the highest number of rainy days is May (10 days).
Months with the lowest number of rainy days are January, February, July, August, November and December (6 days).

Average daylight in May / Average sunshine in May - Sulphur, OK
  • Average daylight in May: 14h

The month with the longest days is June (Average daylight: 14.4h).
The month with shortest days is December (Average daylight: 9.9h).

  • Average sunshine in May: 9h

The month with most sunshine is July (Average sunshine: 11h).
Months with least sunshine are January, November and December (Average sunshine: 6).

Average UV index in May - Sulphur, OK
  • Average UV index in May: 9

Months with the highest UV index are June and July (UV index 10).
The month with the lowest UV index is December (UV index 2).