May weather forecast
Joplin, MT

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Weather in May

May, the last month of the spring in Joplin, is a comfortable month, with temperature in the range of an average high of 63.1°F (17.3°C) and an average low of 45.1°F (7.3°C).

Temperature

The start of May brings a rise in the average high-temperature, moving from a cool 53.1°F (11.7°C) in April to a refreshing 63.1°F (17.3°C). In the month of May, the average temperature dips to a chilly 45.1°F (7.3°C) during the night.

Humidity

In May, the average relative humidity is 54%.

Rainfall

In Joplin, in May, it is raining for 14.9 days, with typically 1.73" (44mm) of accumulated precipitation. In Joplin, during the entire year, the rain falls for 113.8 days and collects up to 11.89" (302mm) of precipitation.

Snowfall

January through May, September through December are months with snowfall. May is the last month it regularly snows. During 0.8 snowfall days, in May, Joplin aggregates 0.87" (22mm) of snow. Throughout the year, there are 65.1 snowfall days, and 24.69" (627mm) of snow is accumulated.

Daylight

The average length of the day in May is 15h and 16min.
On the first day of the month, sunrise is at 6:01 am and sunset at 8:38 pm. On the last day of May, in Joplin, sunrise is at 5:25 am and sunset at 9:16 pm MDT.

Sunshine

In Joplin, the average sunshine in May is 10.3h.

UV index

In May, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for ordinary individuals.
Note: A maximum UV index of 4 in May translates into the following recommendations:
Undertake protective steps - Recommendations to avoid sunburn are issued. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat. Consider carefully! The reflective quality of snow can almost double the intensity of the Sun's UV radiation.
Updated: Aug 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in May?

May temperatures in Joplin vary between a high-temperature of 63.1°F (17.3°C) and a low-temperature of 45.1°F (7.3°C).

What is the average humidity in May?

In Joplin, the average relative humidity in May is 54%.

How many days does it rain in May in Joplin?

In May, the rain falls for 14.9 days. Throughout May, 1.73" (44mm) of precipitation is accumulated.

What is the last month it snows?

May is the last month it regularly snows. During 0.8 snowfall days, in May, Joplin aggregates 0.87" (22mm) of snow.

How many hours of daylight does Joplin have in May?

In May, the average day length is 15h and 16min.

What time are sunrise and sunset in May?

In May, on the first day of the month, sunrise is at 6:01 am and sunset at 8:38 pm. On the last day of the month, sunrise is at 5:25 am and sunset at 9:16 pm MDT.

How long on average sun shines in May?

In Joplin, the average sunshine duration in May is 10.3h.

What is the UV index intensity in May?

In Joplin, the average daily maximum UV index in May is 4. A UV Index value of 3 to 5 symbolizes a moderate vulnerability from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Joplin, MT

Average temperature in May - Joplin, MT
  • Average high temperature in May: 63.1°F

The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is December (28.2°F).

  • Average low temperature in May: 45.1°F

The month with the highest average low temperature is August (60.4°F).
The coldest month (with the lowest average low temperature) is February (16.3°F).

Average pressure in May
Joplin, MT

Average pressure in May - Joplin, MT
  • Average pressure in May: 29.93"Hg

The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).

Average wind speed in May
Joplin, MT

Average wind speed in May - Joplin, MT
  • Average wind speed in May: 9.9mph

The windiest month (with the highest average wind speed) is April (10.8mph).
The calmest month (with the lowest average wind speed) is August (8.5mph).

Average humidity in May
Joplin, MT

Average humidity in May - Joplin, MT
  • Average humidity in May: 54%

The month with the highest relative humidity is January (81%).
The month with the lowest relative humidity is August (39%).

Average rainfall in May
Joplin, MT

Average rainfall in May - Joplin, MT
  • Average rainfall in May: 1.73"

The wettest month (with the highest rainfall) is June (2.32").
The driest month (with the least rainfall) is December (0.59").

Average rainfall days in May
Joplin, MT

Average rainfall days in May - Joplin, MT
  • Average rainfall days in May: 14.9 days

The month with the highest number of rainy days is May (14.9 days).
The month with the least rainy days is January (5 days).

Average snowfall in May
Joplin, MT

Average snowfall in May - Joplin, MT
  • Average snowfall in May: 0.87"

The month with the highest snowfall is February (5").
The months with the least snowfall are June, July and August (0").

Average snowfall days in May
Joplin, MT

Average snowfall days in May - Joplin, MT
  • Average snowfall days in May: 0.8 days

The month with the highest number of snowfall days is January (12.5 days).
The months with the least snowfall days are June, July and August (0 days).

Average daylight in May /
Average sunshine in May
Joplin, MT

Average daylight in May / Average sunshine in May - Joplin, MT
  • Average daylight in May: 15h and 2min

The month with the longest days is June (Average daylight: 16h and 6min).
The month with the shortest days is December (Average daylight: 8h and 24min).

  • Average sunshine in May: 10h and 2min

The month with the most sunshine is July (Average sunshine: 12h and 0min).
The months with the least sunshine are January and December (Average sunshine: 5h and 18min).

Average sunshine days in May
Joplin, MT

Average sunshine days in May - Joplin, MT
  • Average sunshine days in May: 13.5 days

The month with the most sunshine days is September (19.5 days).
The month with the least sunshine days is April (11.7 days).

Average UV index in May
Joplin, MT

Average UV index in May - Joplin, MT
  • Average UV index in May: 4

The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).

Average cloud cover in May
Joplin, MT

Average cloud cover in May - Joplin, MT
  • Average cloud cover in May: 33

The month with the most cloud cover is February (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 15).

Average visibility in May
Joplin, MT

Average visibility in May - Joplin, MT
  • Average visibility in May: 6mi

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

Joplin, Montana, USA

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