May weather forecast
Opheim, MT

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Weather in May

The last month of the spring, May, is a comfortable month in Opheim, Montana, with an average temperature fluctuating between 46.9°F (8.3°C) and 64.6°F (18.1°C).

Temperature

The shift into May is characterized by a rise in the average high-temperature, transitioning from April's fresh 52.2°F (11.2°C) to a refreshing 64.6°F (18.1°C). Throughout the month of May, Opheim sees a steady low-temperature average of 46.9°F (8.3°C).

Humidity

In Opheim, the average relative humidity in May is 52%.

Rainfall

In May, the rain falls for 13.8 days. Throughout May, 1.85" (47mm) of precipitation is accumulated. Throughout the year, there are 90.8 rainfall days, and 11.1" (282mm) of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall in Opheim, Montana. May is the last month it regularly snows. During 0.4 snowfall days, in May, Opheim aggregates 0.31" (8mm) of snow. In Opheim, during the entire year, snow falls for 43.8 days and aggregates up to 13.11" (333mm) of snow.

Daylight

The average length of the day in May in Opheim, Montana, is 15h and 19min.
On the first day of the month, sunrise is at 5:43 am and sunset at 8:21 pm. On the last day of May, in Opheim, sunrise is at 5:06 am and sunset at 9:00 pm MDT.

Sunshine

The average sunshine in May is 10.3h.

UV index

In Opheim, the average daily maximum UV index in May is 5. A UV Index reading of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: A daily maximum UV index of 5 in May translates into the following instructions:
Be cautious. Those with fair skin can be subjected to burns in fewer than 30 minutes. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit. Take warning! The intensity of the Sun's UV radiation can be nearly amplified twice due to 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 Opheim in May?

May temperatures in Opheim, Montana, vary between a high-temperature of 64.6°F (18.1°C) and a low-temperature of 46.9°F (8.3°C).

What is the average humidity in May in Opheim?

The average relative humidity in May in Opheim, Montana, is 52%.

How much does it rain in Opheim in May?

In May, in Opheim, the rain falls for 13.8 days. Throughout May, 1.85" (47mm) of precipitation is accumulated.

What is the last month it snows in Opheim?

May is the last month it regularly snows in Opheim, Montana. During 0.4 snowfall days, in May, Opheim aggregates 0.31" (8mm) of snow.

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

In May, the average day length in Opheim is 15h and 19min.

What time are sunrise and sunset in May in Opheim?

In May, on the first day of the month, sunrise is at 5:43 am and sunset at 8:21 pm. On the last day of the month, in Opheim, Montana, sunrise is at 5:06 am and sunset at 9:00 pm MDT.

How many hours of sunshine does Opheim have in May?

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

How high is the UV index in May in Opheim?

The average daily maximum UV index in May is 5. A UV Index value of 3 to 5 symbolizes a medium health risk 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
Opheim, MT

Average temperature in May - Opheim, MT
  • Average high temperature in May: 64.6°F

The warmest month (with the highest average high temperature) is July (83.1°F).
The month with the lowest average high temperature is February (23.7°F).

  • Average low temperature in May: 46.9°F

The month with the highest average low temperature is July (63.3°F).
The coldest month (with the lowest average low temperature) is February (10.2°F).

Average pressure in May
Opheim, MT

Average pressure in May - Opheim, MT
  • Average pressure in May: 29.92"Hg

The month with the highest atmospheric pressure is February (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.83"Hg).

Average wind speed in May
Opheim, MT

Average wind speed in May - Opheim, MT
  • Average wind speed in May: 11mph

The windiest month (with the highest average wind speed) is April (11.7mph).
The calmest month (with the lowest average wind speed) is February (8.8mph).

Average humidity in May
Opheim, MT

Average humidity in May - Opheim, MT
  • Average humidity in May: 52%

The month with the highest relative humidity is January (86%).
The month with the lowest relative humidity is August (42%).

Average rainfall in May
Opheim, MT

Average rainfall in May - Opheim, MT
  • Average rainfall in May: 1.85"

The wettest month (with the highest rainfall) is June (2.01").
The driest months (with the least rainfall) are January and February (0.35").

Average rainfall days in May
Opheim, MT

Average rainfall days in May - Opheim, MT
  • Average rainfall days in May: 13.8 days

The month with the highest number of rainy days is May (13.8 days).
The month with the least rainy days is February (2.3 days).

Average snowfall in May
Opheim, MT

Average snowfall in May - Opheim, MT
  • Average snowfall in May: 0.31"

The month with the highest snowfall is December (2.6").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in May
Opheim, MT

Average snowfall days in May - Opheim, MT
  • Average snowfall days in May: 0.4 days

The month with the highest number of snowfall days is February (9.2 days).
The months with the least snowfall days are June, July and August (0 days).

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

Average daylight in May / Average sunshine in May - Opheim, 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 18min).

  • Average sunshine in May: 10h and 2min

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

Average sunshine days in May
Opheim, MT

Average sunshine days in May - Opheim, MT
  • Average sunshine days in May: 14.8 days

The month with the most sunshine days is November (21.5 days).
The month with the least sunshine days is June (13.8 days).

Average UV index in May
Opheim, MT

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

The month with the highest UV index is July (UV index 7).
The month with the lowest UV index is December (UV index 1).

Average cloud cover in May
Opheim, MT

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

The month with the most cloud cover is February (Cloud cover 49).
The month with the least cloud cover is July (Cloud cover 16).

Average visibility in May
Opheim, MT

Average visibility in May - Opheim, 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).

Opheim, Montana, USA

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