May weather forecast
Deer Lodge, MT

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Weather in May

May ushers in a noticeable change in the weather pattern of Deer Lodge, with temperatures soaring to 55.9°F (13.3°C). This month marks the transition from spring to summer, and the summer heat gradually becomes palpable. Snowfall dwindles dramatically to just 1.34in, paving the way for a considerable increase in sunshine hours and longer days. The swift rise in temperature is complemented by the presence of increased rainfall, which revitalizes the ecosystem. May is a harbinger of the warm and sunlit days that lie in the months ahead.

Temperature

The onset of May marks an increase in the average high-temperature, moving from a frosty 43.9°F (6.6°C) in April to a moderate 55.9°F (13.3°C). Despite a noticeable differential from daytime highs, Deer Lodge notes an average nighttime low-temperature of 34.2°F (1.2°C) in May.

Humidity

In Deer Lodge, the average relative humidity in May is 68%.

Rainfall

In May, the rain falls for 19.9 days. Throughout May, 2.28" (58mm) of precipitation is accumulated. In Deer Lodge, during the entire year, the rain falls for 151.7 days and collects up to 16.46" (418mm) of precipitation.

Snowfall

January through June, September through December are months with snowfall. In Deer Lodge, during May, snow falls for 4.2 days and regularly aggregates up to 1.34" (34mm) of snow. In Deer Lodge, during the entire year, snow falls for 105 days and aggregates up to 49.69" (1262mm) of snow.

Daylight

The average length of the day in May in Deer Lodge is 15h and 1min.
On the first day of May, sunrise is at 6:15 am and sunset at 8:40 pm. On the last day of the month, sunrise is at 5:42 am and sunset at 9:15 pm MDT.

Sunshine

In Deer Lodge, the average sunshine in May is 10.1h.

UV index

In May, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for the ordinary person.
Note: In May, the average maximum UV index of 4 translates into the following recommendations:
Take precautions - Protection against sunburn is recommended. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. Opt for tightly woven and loose clothing to enhance protection from the Sun. Foresee this! The reflection from snow can nearly double the intensity of UV radiation from the Sun.

Frequently asked questions

What are the temperatures in Deer Lodge in May?

The high-temperature, in May, in Deer Lodge, is 55.9°F (13.3°C), while the low-temperature averages to 34.2°F (1.2°C).

What is the average humidity in May in Deer Lodge?

In May, the average relative humidity is 68%.

How much does it rain in May?

In May, the rain falls for 19.9 days. Throughout May, 2.28" (58mm) of precipitation is accumulated.

How many days does it snow in May?

In May, it is snowing for 4.2 days. Throughout May, 1.34" (34mm) of snow is accumulated.

What is the average length of the day in May?

The average day length in May is 15h and 1min.

When is the sunrise / sunset in May?

In May, on the first day of the month, sunrise is at 6:15 am and sunset at 8:40 pm. On the last day of the month, sunrise is at 5:42 am and sunset at 9:15 pm MDT.

How long on average sun shines in May?

In May, the average sunshine duration is 10.1h.

What is the UV index intensity in May?

In Deer Lodge, the average daily maximum UV index in May is 4. A UV Index of 3 to 5 symbolizes a moderate vulnerability from unsafe exposure to Sun's UV rays.
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
Deer Lodge, MT

Average temperature in May - Deer Lodge, MT
  • Average high temperature in May: 55.9°F

The warmest month (with the highest average high temperature) is July (77.4°F).
The month with the lowest average high temperature is December (25.5°F).

  • Average low temperature in May: 34.2°F

The month with the highest average low temperature is August (47.8°F).
The coldest month (with the lowest average low temperature) is December (11.7°F).

Average pressure in May
Deer Lodge, MT

Average pressure in May - Deer Lodge, MT
  • Average pressure in May: 29.95"Hg

The months with the highest atmospheric pressure are January and December (30.19"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

Average wind speed in May
Deer Lodge, MT

Average wind speed in May - Deer Lodge, MT
  • Average wind speed in May: 5.7mph

The windiest months (with the highest average wind speed) are January and April (6.6mph).
The calmest month (with the lowest average wind speed) is August (4.9mph).

Average humidity in May
Deer Lodge, MT

Average humidity in May - Deer Lodge, MT
  • Average humidity in May: 68%

The months with the highest relative humidity are January and February (88%).
The months with the lowest relative humidity are July and August (49%).

Average rainfall in May
Deer Lodge, MT

Average rainfall in May - Deer Lodge, MT
  • Average rainfall in May: 2.28"

The wettest month (with the highest rainfall) is June (2.8").
The driest month (with the least rainfall) is January (0.87").

Average rainfall days in May
Deer Lodge, MT

Average rainfall days in May - Deer Lodge, MT
  • Average rainfall days in May: 19.9 days

The month with the highest number of rainy days is May (19.9 days).
The month with the least rainy days is December (8.8 days).

Average snowfall in May
Deer Lodge, MT

Average snowfall in May - Deer Lodge, MT
  • Average snowfall in May: 1.34"

The month with the highest snowfall is February (8.78").
The months with the least snowfall are July and August (0").

Average snowfall days in May
Deer Lodge, MT

Average snowfall days in May - Deer Lodge, MT
  • Average snowfall days in May: 4.2 days

The month with the highest number of snowfall days is February (19.7 days).
The months with the least snowfall days are July and August (0 days).

Average daylight in May /
Average sunshine in May
Deer Lodge, MT

Average daylight in May / Average sunshine in May - Deer Lodge, MT
  • Average daylight in May: 15h and 0min

The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).

  • Average sunshine in May: 10h and 1min

The month with the most sunshine is July (Average sunshine: 11h and 42min).
The month with the least sunshine is January (Average sunshine: 5h and 30min).

Average sunshine days in May
Deer Lodge, MT

Average sunshine days in May - Deer Lodge, MT
  • Average sunshine days in May: 7.1 days

The month with the most sunshine days is September (16.1 days).
The month with the least sunshine days is February (6.7 days).

Average UV index in May
Deer Lodge, MT

Average UV index in May - Deer Lodge, MT
  • Average UV index in May: 4

The month with the highest UV index is July (UV index 5).
The month with the lowest UV index is February (UV index 1).

Average cloud cover in May
Deer Lodge, MT

Average cloud cover in May - Deer Lodge, MT
  • Average cloud cover in May: 35

The month with the most cloud cover is February (Cloud cover 51).
The month with the least cloud cover is August (Cloud cover 15).

Average visibility in May
Deer Lodge, MT

Average visibility in May - Deer Lodge, MT
  • Average visibility in May: 6mi

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

Deer Lodge, Montana, USA

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