Climate and monthly weather forecast
Deer Lodge, MT

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The climate of Deer Lodge

With its location in the USA's state of Montana, Deer Lodge has a climate classified as Dfb under the Köppen climate classification, indicating a humid continental climate with no dry season and warm summers. An in-depth examination of the yearly climatic data reveals some fascinating weather patterns and unique characteristics.

It is imperative to highlight the significant variations in temperature throughout the year. The town goes through extreme cold and freezing conditions from December to February, with the lowest temperature dropping to 11.7°F (-11.3°C). On the contrast, the warmest months are July and August, with temperatures climbing up to 77.4°F (25.2°C) and 75.7°F (24.3°C), respectively. Furthermore, the humidity levels shift noticeably over the year, being highest in January and February (88%), and lowest in July and August (49%).

A year in Deer Lodge is split almost equally between snowfall and rainfall, depending on the season. From December to April, the area experiences snowfall ranging from 1.34" (34mm) to 8.78" (223mm), with the heaviest snowfalls occurring in February. For the remaining months, rainfall dominates the region, reaching its peak in June with 2.8" (71mm). Interestingly, the daylight hours vary notably from 8.7 hours in December to 15.8 hours in June, depicting distinctive weather patterns throughout the year.

The best time to visit Deer Lodge

The optimal time for tourists to visit Deer Lodge is undoubtedly during the summer months from June to August. During these months, the temperatures reach their peak, with highs of 77.4°F (25.2°C) in July. Add to this the minimal rainfall of 1.02" (26mm) in July and 0.91" (23mm) in August, and visitors have the perfect concoction for outdoor activities. Moreover, the town basks in an incredible 15.8 hours of daylight in June and an average relative humidity of around 50%, making the summer months the most comfortable weather-wise.

The worst time to visit Deer Lodge

Visitors would be advised to avoid the winter months of December to February in Deer Lodge. These months are witness to the harshest weather conditions, with temperatures plunging down to lows of 11.7°F (-11.3°C) in December and snow peaks of 8.78" (223mm) in February. Combined with relatively high humidity levels of around 88% and reduced daylight hours, these conditions make outdoor activities less pleasing.

Spring weather in Deer Lodge

Spring weather in Deer Lodge shows a gradual transition from chilly to warmer conditions. From 35.6°F (2°C) in March, temperatures rise to 43.9°F (6.6°C) in April and practically jump to 55.9°F (13.3°C) in May. Alongside the warming temperatures, the region gets a fair amount of rainfall, with April and May seeing 1.97" (50mm) and 2.28" (58mm) respectively. Additionally, the town enjoys an increased amount of daylight from 12 hours in March to 15 hours in May.

Summer weather in Deer Lodge

Deer Lodge's summer is warm and inviting with humidity levels dropping to around 50%. The temperatures reach their peak during July with a high of 77.4°F (25.2°C) and a low of 47.3°F (8.5°C). There is plenty of sunlight to enjoy with 15.8 hours of daylight in June and 14.1 hours in August. The amount of rainfall in the region decreases during summer, making the conditions ideal for outdoor activities.

Autumn weather in Deer Lodge

Autumn brings a change in weather conditions in Deer Lodge with temperatures starting to decrease from 65.5°F (18.6°C) in September to 49.1°F (9.5°C) in October and 35.6°F (2°C) in November. Rainfall is moderate during the autumn months with 1.14" (29mm) in September, 0.94" (24mm) in October, and 0.91" (23mm) in November. On the other hand, daylight hours reduce from 12.5 hours in September to 9.4 hours in November, indicating shorter days.

Winter weather in Deer Lodge

Winter in Deer Lodge is characterized by low temperatures and heavy snowfall. The coldest month is December with temperatures dipping to 11.7°F (-11.3°C). January and February also have freezing temperatures but slightly higher than December. These months experience heavy snowfall with February seeing the highest of 8.78" (223mm). Daylight hours are scarce with a mere 8.7 hours in December and 9.1 hours in January. Thus, winter is certainly the most challenging season in Deer Lodge.

Weather in January

January in Deer Lodge, Montana, introduces a cold winter with temperatures fluctuating between 13.6°F (-10.2°C) and 28.4°F (-2°C). Snowfall is commonly seen during the period, with January trailing only marginally in snowfall days compared to December. Weather in January »

Weather in February

As one of the coldest months in Deer Lodge, February carries on January's low temperatures, albeit with a slight increase in average lows and highs. Snowfall continues to be a predominant feature of this month, with amounts exceeding that of January by around 2.6in. Weather in February »

Weather in March

March brings a welcome relief, showcasing a sharp rise in average temperatures from 12.7°F (-10.7°C) to 19.8°F (-6.8°C). The amount of snowfall declines as temperatures rise, signaling the transition to spring. But with this transition, Deer Lodge experiences an uptick in rainfall, peaking at 1.5in. Weather in March »

Weather in April

In April, Deer Lodge sees further acceleration in temperature variations, with a significant rise in averages from 19.8°F (-6.8°C) to 26.1°F (-3.3°C). The landscape witnesses a definitive change, with snowfall tapering down to about 7.09in — a decrease of more than an inch from the previous month. Weather in April »

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. Weather in May »

Weather in June

June in Deer Lodge experiences warmer summer temperatures, catapulting up to an average of 65.8°F (18.8°C). This month exhibits the least cloud cover percentage, allowing plentiful sunlight to bathe the city. There is also a decline in snowfall days, a mere 0.4 compared to the 1.2 in May. Weather in June »

Weather in July

July is the warmest month in Deer Lodge, witnessing an average high of 77.4°F (25.2°C). Accompanied by a just 49% relative humidity, July proffers a quintessential summer experience. Listless days of blue skies are the norm, with the cloud cover percentage at its lowest. Weather in July »

Weather in August

August echoes the weather characteristics of July, with a minimal decrease in average highs from 77.4°F (25.2°C) to 75.7°F (24.3°C). This is another summery month with pleasant conditions, fostering a multitude of outdoor activities. Weather in August »

Weather in September

With the onset of September, Deer Lodge bids the scorching summer goodbye and gradually transitions into autumn. While summer temperatures are still palpable, September introduces a coolness to the air, especially during nights. Weather in September »

Weather in October

October in Deer Lodge presents distinct autumnal vibes with a noticeable drop in average temperatures to 49.1°F (9.5°C). As the city moves deeper into fall, the first signs of winter start to emerge. Snowfall days register a visible uptick from the preceding month, albeit still under a small number. Weather in October »

Weather in November

Deer Lodge experiences a cold November with the temperatures further falling to 35.6°F (2°C). Snowfall occurrence increases notably from the preceding month, indicating the imminent arrival of winter. Despite the dipping mercury levels and increased cloud cover, November still showcases a mix of warm and cold days, characteristic of the typical fall in Montana. Weather in November »

Weather in December

In December, Deer Lodge is enveloped in the full embrace of winter, with average temperature plummeting to 25.5°F (-3.6°C). The shrinking daylight hours and a chilly wind sweeping across town amplify the wintry feel. Snowfall remains substantial throughout the month, peaking at 6.65in, and adding to the severe cold snap. Weather in December »
Updated: Jun 27, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the most humid months?

The months with the highest humidity are January and February, with an average relative humidity of 88%.

What is the driest month?

January is the month with the least rainfall. Rain falls for 11.2 days and accumulates 0.87" (22mm) of precipitation.

How much does it rain?

In Deer Lodge, during the entire year, the rain falls for 151.7 days and collects up to 16.46" (418mm) of precipitation.

When does it snow?

January through June, September through December are months with snowfall.

How much does it snow in Deer Lodge?

Throughout the year, there are 105 snowfall days, and 49.69" (1262mm) of snow is accumulated.

What is the month with the least sunshine?

The month with the least sunshine is January, with an average of 5.5h of sunshine.

When does it snow the most?

The month with the most snowfall is February, when snow falls for 19.7 days and typically aggregates up to 8.78" (223mm) of snow.

When is the lowest UV index?

With an average maximum UV index of 1, February is the month with the lowest UV index.

When is Daylight Saving Time (DST)?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from MST to MDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from MDT to MST.

What is the rainiest month?

The month with the most rainfall is June, when the rain falls for 16.3 days and typically aggregates up to 2.8" (71mm) of precipitation.

When are the longest days?

With an average of 15h and 42min of daylight, June has the longest days of the year.

What month is the hottest?

The month of July, characterized by an average high of 77.4°F (25.2°C) and a low of 47.3°F (8.5°C), is recognized as the warmest.

What is the least humid month?

July and August, with an average relative humidity of 49%, are the least humid months.

When it does not snow?

In Deer Lodge, snow does not fall in July and August.

What month has the most sunshine?

The month with the most sunshine is July, with an average of 11.7h of sunshine.

When is the highest UV index?

With an average maximum UV index of 5, July is the month with the highest UV index.

What time of the year is the coldest?

In Deer Lodge, December records the average lowest temperatures, peaking at 25.5°F (-3.6°C) and reaching a low of 11.7°F (-11.3°C).

What is the month with the shortest days?

December has the shortest days of the year, with an average of 8h and 42min of daylight.

Average temperature
Deer Lodge, MT

Average temperature - Deer Lodge, MT

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).

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
Deer Lodge, MT

Average pressure - Deer Lodge, MT

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
Deer Lodge, MT

Average wind speed - Deer Lodge, MT

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
Deer Lodge, MT

Average humidity - Deer Lodge, MT

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
Deer Lodge, MT

Average rainfall - Deer Lodge, MT

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
Deer Lodge, MT

Average rainfall days - Deer Lodge, MT

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
Deer Lodge, MT

Average snowfall - Deer Lodge, MT

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

Average snowfall days
Deer Lodge, MT

Average snowfall days - Deer Lodge, MT

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 / Average sunshine
Deer Lodge, MT

Average daylight / Average sunshine - Deer Lodge, MT

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).

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
Deer Lodge, MT

Average sunshine days - Deer Lodge, MT

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 visibility
Deer Lodge, MT

Average visibility - Deer Lodge, MT

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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