May weather forecast and climate
Olney, MO

The last month of the spring, May, is a warm month in Olney, Missouri, with average temperature varying between 74.7°F (23.7°C) and 55.9°F (13.3°C).

Temperature

In May, the average high-temperature increases, from an enjoyable 64.9°F (18.3°C) in April, to a moderately hot 74.7°F (23.7°C). In Olney, the average low-temperature is 55.9°F (13.3°C).

Humidity

The most humid month is May, with an average relative humidity of 78%.

Rainfall

May is the month with the most rainfall. Rain falls for 16.3 days and accumulates 3.39" (86mm) of precipitation.

Snowfall

May through October are months without snowfall.

Daylight

The average length of the day in May is 14.3h.

Sunshine

In Olney, Missouri, the average sunshine in May is 9.1h.

UV index

In Olney, Missouri, the average daily maximum UV index is 5. A UV Index of 3 to 5 symbolizes a moderate health risk from unsafe exposure to the UV radiation for the average person.
Note: In May, the average maximum UV index of 5 translate into the following recommendations:
Take precautions - Protection against the skin and eye damage is obliged. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.

What is the temperature in May in Olney?

In May, in Olney, Missouri, the average high-temperature is 74.7°F (23.7°C), and the average low-temperature is 55.9°F (13.3°C).

What is the most humid month in Olney?

With an average relative humidity of 78%, May is the most humid month in Olney, Missouri.

What is the average humidity in May in Olney?

In May, the average relative humidity in Olney is 78%.

How many days does it rain in May in Olney?

In May, in Olney, Missouri, the rain falls for 16.3 days. Throughout May, 3.39" (86mm) of precipitation is accumulated.

What is the rainiest month in Olney?

The month with the most rainfall in Olney, Missouri, is May when the rain falls for 16.3 days and typically aggregates up to 3.39" (86mm) of precipitation.

Does it snow in Olney in May?

In May, it doesn't snow. April is the latest month when it typically snows.

When it does not snow in Olney?

In Olney, Missouri, snow does not fall in May through October.

What is the average length of the day in May in Olney?

The average length of the day in May is 14.3h.

How long on average sun shines in May in Olney?

The average sunshine in May is 9.1h.

How high is the UV index in May in Olney?

In May, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a medium hazard to health from the exposure to the Sun's UV radiation.
Average temperature in May - Olney, MO
  • Average high temperature in May: 23.7°C

The warmest month (with the highest average high temperature) is July (30.4°C).
The month with the lowest average high temperature is January (2.3°C).

  • Average low temperature in May: 13.3°C

The month with the highest average low temperature is July (19.8°C).
The coldest month (with the lowest average low temperature) is January (-5.3°C).

Average pressure in May - Olney, MO
  • Average pressure in May: 1014.1mbar

The month with the highest atmospheric pressure is January (1021.2mbar).
The month with the lowest atmospheric pressure is June (1013mbar).

Average wind speed in May - Olney, MO
  • Average wind speed in May: 12.1km/h

The windiest month (with the highest average wind speed) is January (15km/h).
The calmest month (with the lowest average wind speed) is July (9.6km/h).

Average humidity in May - Olney, MO
  • Average humidity in May: 78%

The month with the highest relative humidity is May (78%).
The month with the lowest relative humidity is October (72%).

Average rainfall in May - Olney, MO
  • Average rainfall in May: 86mm

The wettest month (with the highest rainfall) is May (86mm).
The driest months (with the least rainfall) are January and February (37mm).

Average rainfall days in May - Olney, MO
  • Average rainfall days in May: 16.3 days

The month with the highest number of rainy days is May (16.3 days).
The month with the least rainy days is December (6.5 days).

Average snowfall in May - Olney, MO
  • Average snowfall in May: 0mm

The month with the highest snowfall is January (79mm).
Months with the least snowfall are May, June, July, August, September and October (0mm).

Average snowfall days in May - Olney, MO
  • Average snowfall days in May: 0 days

The month with the highest number of snowfall days is February (5.9 days).
Months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight in May / Average sunshine in May - Olney, MO
  • Average daylight in May: 14.3h

The month with the longest days is June (Average daylight: 14.9h).
The month with the shortest days is December (Average daylight: 9.5h).

  • Average sunshine in May: 9.1h

The month with the most sunshine is June (Average sunshine: 10.2h).
The month with the least sunshine is January (Average sunshine: 4.4h).

Average sunshine days in May - Olney, MO
  • Average sunshine days in May: 12.2 days

The month with the most sunshine days is December (20 days).
The month with the least sunshine days is May (12.2 days).

Average UV index in May - Olney, MO
  • Average UV index in May: 5

Months with the highest UV index are June, July and August (UV index 6).
Months with the lowest UV index are January, February, November and December (UV index 2).

Average cloud cover in May - Olney, MO
  • Average cloud cover in May: 40

The month with the most cloud cover is January (Cloud cover 52).
The month with the least cloud cover is August (Cloud cover 30).

Average visibility in May - Olney, MO
  • Average visibility in May: 9km

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).