Climate and monthly weather forecastBozeman, MT
Climate and monthly weather forecast
The climate of Bozeman
A city located in the southwestern part of Montana, USA, Bozeman possesses a Humid Continental climate, as classified by the Köppen climate classification system. This particular climate type, noted as Dfb, is typified by its warm, rain-filled summer and stark, frosty winter without the occurrence of a dry season.A monthly review of Bozeman’s meteorological elements displays considerable weather variations throughout the course of a year. Temperature fluctuates significantly from January’s chilliest 12°F (-11.1°C) to July’s warmest at 77°F (25°C). Moreover, humidity levels also change over the year, with the driest months in the middle of summer, holding a relative humidity of 52% in July and a more damp atmosphere during winter at an 89% relative humidity in January.
Precipitation portrays a unique pattern in Bozeman; maximum rainfall consistently happens in May at 2.83" (72mm), whereas the least amount of rainfall occurs around August with 1.3" (33mm). Alongside this, snowfall peaks in February with 15.51" (394mm) and falls to nil from June to August. Observations on sunshine hours reveal that July receives the highest brightness levels peaking at 11.5 hours per day, whereas December experiences the shortest illumination from the sun at only 4.7 hours per day.
The best time to visit Bozeman
The most opportune period to visit Bozeman falls from June to August. Average temperatures during these summer months hover between 55°F (12.8°C) to 77°F (25°C) which is ideal for most outdoor activities. With relative humidity levels also remaining relatively lower than the rest of the year, the atmosphere is less stifling and more comfortable. Furthermore, these months witness lengthy sunshine hours which can reach up to 11.5 hours a day, enhancing sightseeing experiences.The worst time to visit Bozeman
Bozeman’s coldest months, from December to February, represent perhaps the least preferred time to visit. Temperatures plunge to low values, dropping to as cold as 10.4°F (-12°C) in December. These frigid conditions are accompanied by significant snowfall that averages between 11.38" (289mm) to 15.51" (394mm). Limited sunshine hours and shorter day lightning further reduce the allure of these winter months.Spring weather in Bozeman
From March until May, Bozeman's weather ranges significantly in warmth with temperatures fluctuating between 19.6°F (-6.9°C) to 55°F (12.8°C). Rainfall commences its annual peak, reaching the highest levels in May at 2.83" (72mm). Snowfall decreases substantially from a high in March of 13.78" (350mm) to a minimal amount of 0.79" (20mm) in May. Daylight hours progressively lengthen from 12 hours in March to 14.9 hours by May.Summer weather in Bozeman
Summer starts in June and continues through to August, with temperature oscillating between a pleasing 66°F (18.9°C) to a high of 77°F (25°C). During these months, Bozeman experiences its driest period, with relative humidity sliding down to 52% in July. Rainfall also decreases to its annual lowest point in August at 1.3" (33mm). Notably, daylight hours are longest in this period, extending to 15.7 hours in June.Autumn weather in Bozeman
Bozeman's autumn season spans from September until November. Temperature ranges shift from an agreeable 48.4°F (9.1°C) to a cooler 34.3°F (1.3°C). Rainfall maintains a somewhat steady state throughout autumn months, ranging from 1.81" (46mm) to 1.61" (41mm). The transition to winter begins with snowfall, which jumps from a mere 2.05" (52mm) in September up to 11.18" (284mm) by November.Winter weather in Bozeman
Winter in Bozeman stretches from December to February. In these frosty months, temperature routinely plummets to the ranges of 10.4°F (-12°C) to 27°F (-2.8°C). Additionally, high levels of snowfall are prevalent, peaking in February with 15.51" (394mm). As daylight hours decrease, December sees the shortest at just 8.8 hours. The presence of clouds significantly increases during winter, rising to 55% coverage in December.Weather in January
Starting the year, Bozeman, Montana often experiences frigid temperatures. The month is dominated by cold weather patterns with the mercury levels often oscillating between a high of 27°F (-2.8°C) and a low of 12°F (-11.1°C). Weather in January »Weather in February
In February, Bozeman, Montana experiences weather conditions similar to those of January, albeit with a slight uptick in temperature. The month maintains the winter's tight grip with fairly low temperatures, albeit a subtle increment in snowfall, from 11.97" (304mm) in January to 15.51" (394mm) in February. Weather in February »Weather in March
Weather conditions in Bozeman, Montana start to shift in March as signs of spring make their way into the weather pattern. Average temperatures warm up, reaching a high of 34.9°F (1.6°C) and a low of 19.6°F (-6.9°C), marginally higher than those of February. Weather in March »Weather in April
April marks a significant break from Bozeman, Montana's winter weather pattern. The month registers higher temperatures, with a high of 43°F (6.1°C) and a low of 25.5°F (-3.6°C). The amount of snowfall further decreases, indicating a conspicuous shift towards warmer weather. Weather in April »Weather in May
In May, the city of Bozeman, Montana fully embraces the spring weather. While rainfall increases to a high of 2.83" (72mm), it nourishes the burgeoning lush landscapes. Now unimpeded by snowfall, the landscapes burst into a riot of colors as flowers begin to bloom, painting the town in various shades of spring. Weather in May »Weather in June
June introduces the summer season to Bozeman, Montana, pushing the temperature threshold higher. This warm weather shift fuels outdoor activities, such as hiking, picnicking, and bird watching, making this month quite active for outdoor enthusiasts. Weather in June »Weather in July
Reaching the peak of summer, July in Bozeman, Montana is characterized by warm temperatures. The month is notably the warmest of the year, with an average high and low temperature of 77°F (25°C) and 46.9°F (8.3°C), respectively. Weather in July »Weather in August
August maintains the summer momentum in Bozeman, Montana while displaying a slight dip in temperatures from July. As the sun remains generous with its light, the region experiences minimal rainfall and low humidity levels. The pleasant weather and overall climate conditions make August ideal for venturing into the scenic landscapes and immersing oneself in outdoor activities. Weather in August »Weather in September
As September rolls in, Bozeman, Montana starts to transition from summer to the cooler autumn season. With lower average temperatures than August, the month also heralds the beginning of fall foliage. While the rainfall figures increment slightly from August, the weather remains pleasant enough for outdoor activities. Weather in September »Weather in October
October showcases the full burst of fall colors in Bozeman, Montana. As temperatures continue to drop from those of September, autumn reaches its peak during this month. Stepped up rainfall compared to previous months, contributes to the vivid fall colors, turning Bozeman into an artist's palette. Weather in October »Weather in November
In November, the weather in Bozeman, Montana shifts noticeably, ringing in the winter season. The advent of cold temperatures sees the return of snowfall, with November experiencing an average of 11.18" (284mm). As daylight hours continue to decrease, the onset of the festive season sees the town adorned with lights, creating a spectacular sight against the snow-clad backdrop. Weather in November »Weather in December
December, the final month of the year, covers Bozeman, Montana in a thick blanket of snow. The town experiences one of its highest snowfall values, amounting to 11.38" (289mm) on average. The steep drop in temperature gives the region an unmistakably wintry feel. Weather in December »Updated: Feb 13, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Throughout the year, in Bozeman, Montana, there are 131 rainfall days, and 23.15" (588mm) of precipitation is accumulated.
January through June, September through December are months with snowfall.
In Bozeman, during the entire year, snow falls for 122.8 days and aggregates up to 91.1" (2314mm) of snow.
The months with the least sunshine in Bozeman, Montana, are January and February, with an average of 4.5h of sunshine.
The months with the lowest UV index in Bozeman, Montana, are January through March, November and December, with an average maximum UV index of 1.
The most humid month in Bozeman is February, with an average relative humidity of 90%.
The month with the most snowfall is February, when snow falls for 20.3 days and typically aggregates up to 15.51" (394mm) of snow.
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Bozeman, Montana, 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.
The month with the most rainfall in Bozeman, Montana, is May, when the rain falls for 18.5 days and typically aggregates up to 2.83" (72mm) of precipitation.
With an average of 15h and 36min of daylight, June has the longest days of the year in Bozeman.
In Bozeman, July registers the highest temperatures, averaging 77°F (25°C) at the peak and 46.9°F (8.3°C) at the lowest.
In Bozeman, snow does not fall in July and August.
With an average of 11.5h of sunshine, July has the most sunshine of the year.
The month with the highest UV index in Bozeman is July, with an average maximum UV index of 5.
With an average relative humidity of 51%, August is the least humid month.
August is the month with the least rainfall in Bozeman. Rain falls for 12.6 days and accumulates 1.3" (33mm) of precipitation.
In Bozeman, December registers the lowest temperatures, averaging 24.8°F (-4°C) at the peak and 10.4°F (-12°C) at the lowest.
The month with the shortest days is December, with an average of 8h and 48min of daylight.
Average temperature
Bozeman, MT
The warmest month (with the highest average high temperature) is July (77°F).
The month with the lowest average high temperature is December (24.8°F).
The months with the highest average low temperature are July and August (46.9°F).
The coldest month (with the lowest average low temperature) is December (10.4°F).
Average pressure
Bozeman, MT
- Average pressure in January:
30.19"Hg - Average pressure in February:
30.13"Hg - Average pressure in March:
30.03"Hg - Average pressure in April:
29.96"Hg - Average pressure in May:
29.94"Hg - Average pressure in June:
29.9"Hg
- Average pressure in July:
29.96"Hg - Average pressure in August:
29.96"Hg - Average pressure in September:
29.98"Hg - Average pressure in October:
30.04"Hg - Average pressure in November:
30.12"Hg - Average pressure in December:
30.19"Hg
The months with the highest atmospheric pressure are January and December (30.19"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed
Bozeman, MT
- Average wind speed in January:
6.2mph - Average wind speed in February:
5.5mph - Average wind speed in March:
5.5mph - Average wind speed in April:
5.5mph - Average wind speed in May:
5mph - Average wind speed in June:
5mph
- Average wind speed in July:
4.7mph - Average wind speed in August:
4.7mph - Average wind speed in September:
4.9mph - Average wind speed in October:
5.6mph - Average wind speed in November:
5.9mph - Average wind speed in December:
5.8mph
The windiest month (with the highest average wind speed) is January (6.2mph).
The calmest months (with the lowest average wind speed) are July and August (4.7mph).
Average humidity
Bozeman, MT
The month with the highest relative humidity is February (90%).
The month with the lowest relative humidity is August (51%).
Average rainfall
Bozeman, MT
- Average rainfall in January:
1.46" - Average rainfall in February:
2.01" - Average rainfall in March:
2.13" - Average rainfall in April:
2.76" - Average rainfall in May:
2.83" - Average rainfall in June:
2.56"
- Average rainfall in July:
1.42" - Average rainfall in August:
1.3" - Average rainfall in September:
1.81" - Average rainfall in October:
1.85" - Average rainfall in November:
1.61" - Average rainfall in December:
1.42"
The wettest month (with the highest rainfall) is May (2.83").
The driest month (with the least rainfall) is August (1.3").
Average rainfall days
Bozeman, MT
- Average rainfall days in January:
4.4 days - Average rainfall days in February:
6.3 days - Average rainfall days in March:
11.2 days - Average rainfall days in April:
14.3 days - Average rainfall days in May:
18.5 days - Average rainfall days in June:
16.6 days
- Average rainfall days in July:
11.8 days - Average rainfall days in August:
12.6 days - Average rainfall days in September:
11.2 days - Average rainfall days in October:
12 days - Average rainfall days in November:
6.7 days - Average rainfall days in December:
5.4 days
The month with the highest number of rainy days is May (18.5 days).
The month with the least rainy days is January (4.4 days).
Average snowfall
Bozeman, MT
- Average snowfall in January:
11.97" - Average snowfall in February:
15.51" - Average snowfall in March:
13.78" - Average snowfall in April:
12.83" - Average snowfall in May:
4.45" - Average snowfall in June:
0.79"
The month with the highest snowfall is February (15.51").
The months with the least snowfall are July and August (0").
Average snowfall days
Bozeman, MT
- Average snowfall days in January:
19 days - Average snowfall days in February:
20.3 days - Average snowfall days in March:
19.3 days - Average snowfall days in April:
14.3 days - Average snowfall days in May:
5.7 days - Average snowfall days in June:
0.8 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0.1 days - Average snowfall days in September:
1.5 days - Average snowfall days in October:
8.8 days - Average snowfall days in November:
14.5 days - Average snowfall days in December:
18.5 days
The month with the highest number of snowfall days is February (20.3 days).
The month with the least snowfall days is July (0 days).
Average daylight / Average sunshine
Bozeman, MT
- Average daylight in January:
9h and 12min - Average daylight in February:
10h and 24min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 36min - Average daylight in May:
14h and 54min - Average daylight in June:
15h and 36min
- Average daylight in July:
15h and 18min - Average daylight in August:
14h and 6min - Average daylight in September:
12h and 30min - Average daylight in October:
10h and 54min - Average daylight in November:
9h and 30min - Average daylight in December:
8h and 48min
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 January:
4h and 30min - Average sunshine in February:
4h and 30min - Average sunshine in March:
6h and 30min - Average sunshine in April:
7h and 54min - Average sunshine in May:
9h and 18min - Average sunshine in June:
10h and 36min
- Average sunshine in July:
11h and 30min - Average sunshine in August:
11h and 18min - Average sunshine in September:
9h and 36min - Average sunshine in October:
6h and 18min - Average sunshine in November:
5h and 36min - Average sunshine in December:
4h and 42min
The month with the most sunshine is July (Average sunshine: 11h and 30min).
The months with the least sunshine are January and February (Average sunshine: 4h and 30min).
Average sunshine days
Bozeman, MT
- Average sunshine days in January:
11.7 days - Average sunshine days in February:
7.5 days - Average sunshine days in March:
8.9 days - Average sunshine days in April:
7 days - Average sunshine days in May:
8.2 days - Average sunshine days in June:
11.4 days
- Average sunshine days in July:
14.8 days - Average sunshine days in August:
15 days - Average sunshine days in September:
16.3 days - Average sunshine days in October:
13.8 days - Average sunshine days in November:
13.3 days - Average sunshine days in December:
12.5 days
The month with the most sunshine days is September (16.3 days).
The month with the least sunshine days is April (7 days).
Average UV index
Bozeman, MT
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 1).
Average cloud cover
Bozeman, MT
The month with the most cloud cover is February (Cloud cover 61).
The month with the least cloud cover is August (Cloud cover 17).
Average visibility
Bozeman, MT
The months with the highest visibility are June, July, August, September and October (6mi).
The months with the lowest visibility are January, February, March and December (4mi).
