May weather forecast and climate
Portis, KS

May, the last month of the spring, in Portis, is a warm month, with average temperature ranging between min 54.3°F (12.4°C) and max 74.3°F (23.5°C).

Temperature

In Portis, Kansas, the average high-temperature in May slightly increases, from an enjoyable 65.5°F (18.6°C) in April, to a moderately hot 74.3°F (23.5°C). The average low-temperature, in Portis, is 54.3°F (12.4°C).

Humidity

In May, the average relative humidity is 67%.

Rainfall

May is the month with the most rainfall in Portis. Rain falls for 14.4 days and accumulates 3.74" (95mm) of precipitation.

Snowfall

Months with snowfall in Portis are January through May, October through December. May is the last month it regularly snows in Portis. During 0.2 snowfall days, Portis aggregates 0.08" (2mm) of snow. Throughout the year, in Portis, Kansas, there are 22.6 snowfall days, and 8.5" (216mm) of snow is accumulated.

Daylight

In May, the average length of the day is 14.4h.

Sunshine

The average sunshine in Portis is 9.5h.

UV index

In Portis, Kansas, the average daily maximum UV index in May is 6. A UV Index value of 6 to 7 symbolizes a high threat to health from the exposure to the Sun's UV radiation for ordinary individuals.
Note: The average daily UV index of 6 transform into the following instructions:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. 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. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.

What is the temperature in May in Portis?

The average high-temperature, in May, in Portis, Kansas, is 74.3°F (23.5°C), while the average low-temperature is 54.3°F (12.4°C).

What is the average humidity in May in Portis?

The average relative humidity in May in Portis, Kansas, is 67%.

How much does it rain in Portis in May?

In Portis, during May, the rain falls for 14.4 days and regularly aggregates up to 3.74" (95mm) of precipitation.

What is the wettest month in Portis?

The month with the most rainfall is May when the rain falls for 14.4 days and typically aggregates up to 3.74" (95mm) of precipitation.

What is the last month it snows in Portis?

May is the last month it regularly snows. During 0.2 snowfall days, in May, Portis aggregates 0.08" (2mm) of snow.

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

In May, the average length of the day in Portis is 14.4h.

How long on average sun shines in May in Portis?

The average sunshine in May is 9.5h.

How high is the UV index in May in Portis?

In Portis, the average daily maximum UV index in May is 6. A UV Index reading of 6 to 7 represents a high health vulnerability from unsafe exposure to the Sun's UV rays.
Average temperature in May - Portis, KS
  • Average high temperature in May: 74.3°F

The warmest month (with the highest average high temperature) is July (92.5°F).
The month with the lowest average high temperature is January (39.9°F).

  • Average low temperature in May: 54.3°F

The month with the highest average low temperature is July (70.5°F).
The coldest month (with the lowest average low temperature) is January (23.9°F).

Average pressure in May - Portis, KS
  • Average pressure in May: 29.9"

The month with the highest atmospheric pressure is January (30.17").
The month with the lowest atmospheric pressure is June (29.85").

Average wind speed in May - Portis, KS
  • Average wind speed in May: 10.3mph

The windiest month (with the highest average wind speed) is April (11.7mph).
The calmest month (with the lowest average wind speed) is August (8.9mph).

Average humidity in May - Portis, KS
  • Average humidity in May: 67%

Months with the highest relative humidity are January and December (69%).
The month with the lowest relative humidity is July (57%).

Average rainfall in May - Portis, KS
  • Average rainfall in May: 3.74"

The wettest month (with the highest rainfall) is May (3.74").
The driest month (with the least rainfall) is January (0.59").

Average rainfall days in May - Portis, KS
  • Average rainfall days in May: 14.4 days

The month with the highest number of rainy days is May (14.4 days).
The month with the least rainy days is January (3.8 days).

Average snowfall in May - Portis, KS
  • Average snowfall in May: 0.08"

The month with the highest snowfall is February (2.2").
Months with the least snowfall are June, July, August and September (0").

Average snowfall days in May - Portis, KS
  • Average snowfall days in May: 0.2 days

The month with the highest number of snowfall days is February (6.3 days).
Months with the least snowfall days are June, July, August and September (0 days).

Average daylight in May / Average sunshine in May - Portis, KS
  • Average daylight in May: 14.4h

The month with the longest days is June (Average daylight: 14.9h).
The month with the shortest days is December (Average daylight: 9.4h).

  • Average sunshine in May: 9.5h

The month with the most sunshine is June (Average sunshine: 11.2h).
The month with the least sunshine is December (Average sunshine: 6h).

Average sunshine days in May - Portis, KS
  • Average sunshine days in May: 13.5 days

The month with the most sunshine days is November (23.5 days).
The month with the least sunshine days is May (13.5 days).

Average UV index in May - Portis, KS
  • Average UV index in May: 6

Months with the highest UV index are June and July (UV index 7).
Months with the lowest UV index are January, February, November and December (UV index 2).

Average cloud cover in May - Portis, KS
  • Average cloud cover in May: 34

The month with the most cloud cover is March (Cloud cover 36).
The month with the least cloud cover is June (Cloud cover 21).

Average visibility in May - Portis, KS
  • Average visibility in May: 6mi

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).