May weather forecast
Otter, MT

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Weather in May

May, the last month of the spring in Otter, is a comfortable month, with an average temperature fluctuating between 43.5°F (6.4°C) and 63.7°F (17.6°C).

Temperature

The shift into May is marked by a rise in the average high-temperature, moving from April's fresh 53.1°F (11.7°C) to an enjoyable 63.7°F (17.6°C). Throughout May, Otter experiences a low-temperature average of 43.5°F (6.4°C).

Humidity

The average relative humidity in May is 61%.

Rainfall

The month with the most rainfall in Otter is May, when the rain falls for 18 days and typically aggregates up to 2.64" (67mm) of precipitation.

Snowfall

Months with snowfall are January through May, September through December. May is the last month it regularly snows. During 1.3 snowfall days, in May, Otter aggregates 0.87" (22mm) of snow. In Otter, during the entire year, snow falls for 65.3 days and aggregates up to 28.82" (732mm) of snow.

Daylight

In May, the average length of the day in Otter is 14h and 54min.
On the first day of the month, sunrise is at 5:52 am and sunset at 8:11 pm. On the last day of May, in Otter, sunrise is at 5:20 am and sunset at 8:44 pm MDT.

Sunshine

The average sunshine in May in Otter is 10.5h.

UV index

The average daily maximum UV index in May is 5. A UV Index of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for ordinary individuals.
Note: The maximum UV index of 5 during May leads to these instructions:
Be mindful. Individuals with a lighter skin tone may suffer burns in less than 30 minutes. When the Sun is at its strongest around midday, find shade and limit exposure. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly. Be aware! The intensity of the Sun's UV radiation can be amplified nearly twice due to snow reflection.
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Frequently asked questions

What are the temperatures in Otter in May?

The average high-temperature, in May, in Otter, is 63.7°F (17.6°C), while the average low-temperature is 43.5°F (6.4°C).

What is the average humidity in May in Otter?

In May, the average relative humidity in Otter, Montana, is 61%.

What is the wettest month in Otter?

The month with the most rainfall in Otter, Montana, is May, when the rain falls for 18 days and typically aggregates up to 2.64" (67mm) of precipitation.

How much does it rain in Otter in May?

In May, the rain falls for 18 days. Throughout May, 2.64" (67mm) of precipitation is accumulated.

What is the last month it snows in Otter?

May is the last month it regularly snows in Otter. During 1.3 snowfall days, in May, Otter aggregates 0.87" (22mm) of snow.

How many hours of daylight does Otter have in May?

In May, the average day length in Otter is 14h and 54min.

When is the sunrise / sunset in May in Otter?

In May, on the first day of the month, sunrise is at 5:52 am and sunset at 8:11 pm. On the last day of the month, in Otter, sunrise is at 5:20 am and sunset at 8:44 pm MDT.

How long on average sun shines in May in Otter?

In Otter, the average sunshine duration in May is 10.5h.

What is the UV index intensity in May in Otter?

In Otter, Montana, the average daily maximum UV index in May is 5. A UV Index reading of 3 to 5 represents a moderate vulnerability from unprotected exposure to 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
Otter, MT

Average temperature in May - Otter, MT
  • Average high temperature in May: 63.7°F

The warmest month (with the highest average high temperature) is July (85.5°F).
The month with the lowest average high temperature is December (31.1°F).

  • Average low temperature in May: 43.5°F

The month with the highest average low temperature is July (61.5°F).
The coldest months (with the lowest average low temperature) are January and February (16.2°F).

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Average pressure in May
Otter, MT

Average pressure in May - Otter, MT
  • Average pressure in May: 29.91"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).

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Average wind speed in May
Otter, MT

Average wind speed in May - Otter, MT
  • Average wind speed in May: 8.6mph

The windiest month (with the highest average wind speed) is April (9.1mph).
The calmest months (with the lowest average wind speed) are July and December (6.8mph).

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Average humidity in May
Otter, MT

Average humidity in May - Otter, MT
  • Average humidity in May: 61%

The months with the highest relative humidity are January and February (79%).
The month with the lowest relative humidity is August (40%).

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Average rainfall in May
Otter, MT

Average rainfall in May - Otter, MT
  • Average rainfall in May: 2.64"

The wettest month (with the highest rainfall) is May (2.64").
The driest month (with the least rainfall) is December (0.67").

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Average rainfall days in May
Otter, MT

Average rainfall days in May - Otter, MT
  • Average rainfall days in May: 18 days

The month with the highest number of rainy days is May (18 days).
The month with the least rainy days is January (6.3 days).

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Average snowfall in May
Otter, MT

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

The month with the highest snowfall is February (5.2").
The months with the least snowfall are June, July and August (0").

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Average snowfall days in May
Otter, MT

Average snowfall days in May - Otter, MT
  • Average snowfall days in May: 1.3 days

The month with the highest number of snowfall days is February (14.3 days).
The months with the least snowfall days are June, July and August (0 days).

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

Average daylight in May / Average sunshine in May - Otter, MT
  • Average daylight in May: 14h and 5min

The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).

  • Average sunshine in May: 10h and 3min

The months with the most sunshine are July and August (Average sunshine: 11h and 54min).
The month with the least sunshine is February (Average sunshine: 5h and 42min).

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Average sunshine days in May
Otter, MT

Average sunshine days in May - Otter, MT
  • Average sunshine days in May: 9.6 days

The month with the most sunshine days is September (18.2 days).
The month with the least sunshine days is May (9.6 days).

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Average UV index in May
Otter, MT

Average UV index in May - Otter, MT
  • Average UV index in May: 5

The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February, March, November and December (UV index 2).

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Average cloud cover in May
Otter, MT

Average cloud cover in May - Otter, MT
  • Average cloud cover in May: 31

The month with the most cloud cover is February (Cloud cover 41).
The months with the least cloud cover are July and August (Cloud cover 14).

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Average visibility in May
Otter, MT

Average visibility in May - Otter, 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).

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Otter, Montana, USA

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