May weather forecast
Ravalli, MT

Share

Weather in May

May, the last month of the spring in Ravalli, is a comfortable month, with an average temperature fluctuating between 36.7°F (2.6°C) and 61°F (16.1°C).

Temperature

May's arrival coincides with a temperature rise, moving from April's chilly 48.7°F (9.3°C) to an enjoyable 61°F (16.1°C). Ravalli records a significant temperature drop in May nights, lowering to an average of 36.7°F (2.6°C).

Humidity

In May, the average relative humidity in Ravalli, Montana, is 67%.

Rainfall

In Ravalli, during May, the rain falls for 14.1 days and regularly aggregates up to 1.26" (32mm) of precipitation. Throughout the year, in Ravalli, Montana, there are 129.9 rainfall days, and 13.5" (343mm) of precipitation is accumulated.

Snowfall

January through May, September through December are months with snowfall in Ravalli. May is the last month it regularly snows. During 0.3 snowfall days, in May, Ravalli aggregates 0.08" (2mm) of snow. Throughout the year, in Ravalli, there are 67.1 snowfall days, and 28.27" (718mm) of snow is accumulated.

Daylight

In May, the average length of the day is 15h and 7min.
On the first day of May in Ravalli, Montana, sunrise is at 6:18 am and sunset at 8:48 pm. On the last day of the month, sunrise is at 5:44 am and sunset at 9:24 pm MDT.

Sunshine

In Ravalli, the average sunshine in May is 10.5h.

UV index

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 rays for average individuals.
Note: The daily maximum UV index of 4 in May interprets into the following advice:
Put precautions into practice - Protective measures against sun-induced damage are advised. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses. Heads up! The UV radiation from the Sun can almost be doubled by snow reflection.
Updated: Feb 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for Ravalli in May?

In Ravalli, in May, the average high-temperature is 61°F (16.1°C), and the average low-temperature is 36.7°F (2.6°C).

What is the average humidity in May in Ravalli?

In Ravalli, the average relative humidity in May is 67%.

How much does it rain in Ravalli in May?

In Ravalli, Montana, in May, it is raining for 14.1 days, with typically 1.26" (32mm) of accumulated precipitation.

What is the last month it snows in Ravalli?

May is the last month it regularly snows in Ravalli. During 0.3 snowfall days, in May, Ravalli aggregates 0.08" (2mm) of snow.

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

The average day length in May is 15h and 7min.

What time are sunrise and sunset in May in Ravalli?

In May, on the first day of the month, sunrise is at 6:18 am and sunset at 8:48 pm. On the last day of the month, sunrise is at 5:44 am and sunset at 9:24 pm MDT.

How long on average sun shines in May in Ravalli?

The average sunshine duration in May in Ravalli, Montana, is 10.5h.

What is the UV index intensity in May in Ravalli?

In May, the average daily maximum UV index in Ravalli is 4. A UV Index reading of 3 to 5 represents a moderate health threat 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
Ravalli, MT

Average temperature in May - Ravalli, 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 (28.4°F).

  • Average low temperature in May: 36.7°F

The month with the highest average low temperature is August (49.5°F).
The coldest month (with the lowest average low temperature) is December (16.7°F).

Average pressure in May
Ravalli, MT

Average pressure in May - Ravalli, 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
Ravalli, MT

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

The windiest month (with the highest average wind speed) is April (4.8mph).
The calmest months (with the lowest average wind speed) are January, August and December (3.9mph).

Average humidity in May
Ravalli, MT

Average humidity in May - Ravalli, 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 (49%).

Average rainfall in May
Ravalli, MT

Average rainfall in May - Ravalli, MT
  • Average rainfall in May: 1.26"

The wettest month (with the highest rainfall) is June (2.2").
The driest months (with the least rainfall) are July and August (0.63").

Average rainfall days in May
Ravalli, MT

Average rainfall days in May - Ravalli, MT
  • Average rainfall days in May: 14.1 days

The month with the highest number of rainy days is June (15.7 days).
The month with the least rainy days is August (7.4 days).

Average snowfall in May
Ravalli, MT

Average snowfall in May - Ravalli, MT
  • Average snowfall in May: 0.08"

The month with the highest snowfall is February (6.5").
The months with the least snowfall are June, July and August (0").

Average snowfall days in May
Ravalli, MT

Average snowfall days in May - Ravalli, MT
  • Average snowfall days in May: 0.3 days

The month with the highest number of snowfall days is December (14.5 days).
The months with the least snowfall days are June, July and August (0 days).

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

Average daylight in May / Average sunshine in May - Ravalli, 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 36min).

  • Average sunshine in May: 10h and 3min

The month with the most sunshine is July (Average sunshine: 11h and 48min).
The month with the least sunshine is January (Average sunshine: 4h and 42min).

Average sunshine days in May
Ravalli, MT

Average sunshine days in May - Ravalli, MT
  • Average sunshine days in May: 15.3 days

The month with the most sunshine days is July (20.8 days).
The month with the least sunshine days is February (11 days).

Average UV index in May
Ravalli, MT

Average UV index in May - Ravalli, 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
Ravalli, MT

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

The month with the most cloud cover is February (Cloud cover 52).
The month with the least cloud cover is August (Cloud cover 14).

Average visibility in May
Ravalli, MT

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

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

Ravalli, Montana, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location