May weather forecast
Ronan, MT

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Weather in May

The last month of the spring, May, is an enjoyable month in Ronan, Montana, with temperature in the range of an average high of 61°F (16.1°C) and an average low of 36.3°F (2.4°C).

Temperature

As May arrives, a rise in the average high-temperature is observed, moving from a frosty 48.9°F (9.4°C) in April to a refreshing 61°F (16.1°C). Ronan's nights in May are distinguished by a pronounced temperature shift from the day, with an average low of 36.3°F (2.4°C).

Humidity

The average relative humidity in May is 67%.

Rainfall

In Ronan, in May, it is raining for 16.8 days, with typically 1.93" (49mm) of accumulated precipitation. In Ronan, during the entire year, the rain falls for 158.1 days and collects up to 18.94" (481mm) of precipitation.

Snowfall

January through May, September through December are months with snowfall. May is the last month it regularly snows. During 0.7 snowfall days, in May, Ronan aggregates 0.2" (5mm) of snow. Throughout the year, there are 91.8 snowfall days, and 46.3" (1176mm) of snow is accumulated.

Daylight

In Ronan, the average length of the day in May is 15h and 9min.
On the first day of the month, sunrise is at 6:17 am and sunset at 8:48 pm. On the last day of May, sunrise is at 5:43 am and sunset at 9:25 pm MDT.

Sunshine

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

UV index

The average daily maximum UV index in May is 4. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for the ordinary person.
Note: The maximum daily UV index of 4 in May interprets into the following recommendations:
Make use of precautions - It is urged to ward off sun damage. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage. Mind this! Nearly twice the UV radiation from the Sun can be reflected by the snow.
Updated: Jun 24, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in May?

Ronan in May has an average high-temperature of 61°F (16.1°C) and an average low-temperature of 36.3°F (2.4°C).

What is the average humidity in May?

In May, the average relative humidity is 67%.

How much does it rain in May?

In Ronan, during May, the rain falls for 16.8 days and regularly aggregates up to 1.93" (49mm) of precipitation.

What is the last month it snows?

May is the last month it regularly snows. During 0.7 snowfall days, in May, Ronan aggregates 0.2" (5mm) of snow.

How many hours of daylight does Ronan have in May?

The average day length in May is 15h and 9min.

What time are sunrise and sunset in May?

On the first day of May, sunrise is at 6:17 am and sunset at 8:48 pm. On the last day of the month, sunrise is at 5:43 am and sunset at 9:25 pm MDT.

How long on average sun shines in May?

The average sunshine duration in May is 10.3h.

What is the UV index intensity in May?

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

Average temperature in May
Ronan, MT

Average temperature in May - Ronan, MT
  • Average high temperature in May: 61°F

The warmest month (with the highest average high temperature) is July (79.7°F).
The month with the lowest average high temperature is December (28.6°F).

  • Average low temperature in May: 36.3°F

The month with the highest average low temperature is August (48.6°F).
The coldest month (with the lowest average low temperature) is December (16.7°F).

Average pressure in May
Ronan, MT

Average pressure in May - Ronan, MT
  • Average pressure in May: 29.96"Hg

The month with the highest atmospheric pressure is January (30.18"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

Average wind speed in May
Ronan, MT

Average wind speed in May - Ronan, MT
  • Average wind speed in May: 4.3mph

The windiest month (with the highest average wind speed) is April (4.8mph).
The calmest month (with the lowest average wind speed) is December (3.9mph).

Average humidity in May
Ronan, MT

Average humidity in May - Ronan, MT
  • Average humidity in May: 67%

The month with the highest relative humidity is January (91%).
The month with the lowest relative humidity is August (50%).

Average rainfall in May
Ronan, MT

Average rainfall in May - Ronan, MT
  • Average rainfall in May: 1.93"

The wettest month (with the highest rainfall) is June (2.44").
The driest month (with the least rainfall) is August (0.55").

Average rainfall days in May
Ronan, MT

Average rainfall days in May - Ronan, MT
  • Average rainfall days in May: 16.8 days

The month with the highest number of rainy days is April (19.3 days).
The month with the least rainy days is August (6.6 days).

Average snowfall in May
Ronan, MT

Average snowfall in May - Ronan, MT
  • Average snowfall in May: 0.2"

The month with the highest snowfall is February (10.39").
The months with the least snowfall are June, July and August (0").

Average snowfall days in May
Ronan, MT

Average snowfall days in May - Ronan, MT
  • Average snowfall days in May: 0.7 days

The month with the highest number of snowfall days is February (18.8 days).
The months with the least snowfall days are June, July and August (0 days).

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

Average daylight in May / Average sunshine in May - Ronan, MT
  • Average daylight in May: 15h and 1min

The month with the longest days is June (Average daylight: 15h and 54min).
The month with the shortest days is December (Average daylight: 8h and 30min).

  • Average sunshine in May: 10h and 2min

The month with the most sunshine is July (Average sunshine: 11h and 42min).
The month with the least sunshine is January (Average sunshine: 4h and 36min).

Average sunshine days in May
Ronan, MT

Average sunshine days in May - Ronan, MT
  • Average sunshine days in May: 11.2 days

The month with the most sunshine days is August (21.8 days).
The month with the least sunshine days is February (7.2 days).

Average UV index in May
Ronan, MT

Average UV index in May - Ronan, 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 February and December (UV index 1).

Average cloud cover in May
Ronan, MT

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

The months with the most cloud cover are January and February (Cloud cover 53).
The month with the least cloud cover is August (Cloud cover 14).

Average visibility in May
Ronan, MT

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

The months with the highest visibility are May, June, July, August, September and October (6mi).
The months with the lowest visibility are January, February and December (4mi).

Ronan, Montana, USA

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