May weather forecast
Iverness, MT

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Weather in May

May, the last month of the spring in Iverness, is a comfortable month, with an average temperature varying between 63.1°F (17.3°C) and 45.1°F (7.3°C).

Temperature

May brings a rise in Iverness's average high-temperature, moving from a fresh 53.1°F (11.7°C) in April to a comfortable 63.1°F (17.3°C). During the month of May, the temperature in Iverness generally drops to a low average of 45.1°F (7.3°C).

Humidity

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

Rainfall

In May, in Iverness, the rain falls for 14.9 days. Throughout May, 1.73" (44mm) of precipitation is accumulated. Throughout the year, there are 113.8 rainfall days, and 11.89" (302mm) of precipitation is accumulated.

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, Iverness aggregates 0.87" (22mm) of snow. In Iverness, during the entire year, snow falls for 65.1 days and aggregates up to 24.69" (627mm) of snow.

Daylight

In May, the average length of the day in Iverness 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, sunrise is at 5:25 am and sunset at 9:16 pm MDT.

Sunshine

The average sunshine in May is 10.3h.

UV index

In Iverness, the average daily maximum UV index in May is 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for the average person.
Note: In May, the UV index of 4 transforms into the following advice:
Preventative actions are necessary - Suggestions to safeguard against sun damage are in order. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation. Be informed! The Sun's UV radiation can be nearly doubled due to the reflection from snow.
Updated: Feb 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in May in Iverness?

May temperatures 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 Iverness?

In May, the average relative humidity is 54%.

How many days does it rain in May in Iverness?

In Iverness, in May, it is raining for 14.9 days, with typically 1.73" (44mm) of accumulated precipitation.

What is the last month it snows in Iverness?

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

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

The average day length in May in Iverness is 15h and 16min.

When is the sunrise / sunset in May in Iverness?

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, in Iverness, sunrise is at 5:25 am and sunset at 9:16 pm MDT.

How many hours of sunshine does Iverness have in May?

The average sunshine duration in May in Iverness, Montana, is 10.3h.

What is the UV index intensity in May in Iverness?

In May, the average daily maximum UV index is 4. A UV Index of 3 to 5 symbolizes a medium hazard to health from exposure to the Sun's UV radiation.
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
Iverness, MT

Average temperature in May - Iverness, 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
Iverness, MT

Average pressure in May - Iverness, 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
Iverness, MT

Average wind speed in May - Iverness, 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
Iverness, MT

Average humidity in May - Iverness, 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
Iverness, MT

Average rainfall in May - Iverness, 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
Iverness, MT

Average rainfall days in May - Iverness, 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
Iverness, MT

Average snowfall in May - Iverness, 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
Iverness, MT

Average snowfall days in May - Iverness, 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
Iverness, MT

Average daylight in May / Average sunshine in May - Iverness, 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
Iverness, MT

Average sunshine days in May - Iverness, 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
Iverness, MT

Average UV index in May - Iverness, 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
Iverness, MT

Average cloud cover in May - Iverness, 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
Iverness, MT

Average visibility in May - Iverness, 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).

Iverness, Montana, USA

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