Climate and monthly weather forecastGunnison, CO
Climate and monthly weather forecast
The climate of Gunnison
Situated in the heart of the American state of Colorado, the picturesque town of Gunnison enjoys a Subarctic climate, officially classified as Dfc according to the Köppen system. This category of climate is synonymous with severe winters, cool summers, and no dry season, shaping the overall course of the town's weather across all seasons.Monthly average temperatures in Gunnison see a wide range from 1.9°F (-16.7°C) to 75.6°F (24.2°C) throughout the year, indicating a marked temperature difference between the summer and winter months. Overall, the highest temperatures are observed in July, with the mercury rising to 75.6°F (24.2°C), while January tends to be the coldest month, with minimum temperatures dipping to 1.9°F (-16.7°C). The rainfall pattern stays fairly consistent over the year, centered around a range of 0.55" (14mm) to 1.3" (33mm).
Relative humidity in Gunnison stays on the higher side with values spanning between 44% and 88%. The driest period can be noted in June when the relative humidity drops to 44%. In contrast, the months of January and February see the town enveloped in a moist environment with humidity levels soaring above 87%. The town does not experience a dry month, per se, in line with the subarctic climate classification. It is also subject to considerable snowfall, particularly from December to February when snowfall ranges from 4.69" (119mm) to 6.5" (165mm).
The best time to visit Gunnison
Judging by the parameters of climate and weather, the optimum period to visit Gunnison would fall between May and September. During these months, temperatures are comfortably warm, ranging from 44.4°F (6.9°C) to 73.2°F (22.9°C), much milder in comparison to the often severe winter temperatures. Additionally, these months experience lower relative humidity at around 54% and more hours of daylight, ranging from 13.2 hours to 14.8 hours, allowing visitors to better appreciate the natural landscape and partake in outdoor activities.The worst time to visit Gunnison
The months between November and March can be challenging for travel to Gunnison due to the cold and often harsh winter conditions. Temperatures during this period can plummet below freezing, averaging between 1.9°F (-16.7°C) and 39°F (3.9°C). The presence of heavy snowfall, particularly in December and February, amounting up to 6.5" (165mm), could severely impede travel and outdoor activities. Coupled with fewer daylight hours, ranging from 9.5 to 12 hours, and increased cloud coverage, the ambiance during these months tends to be gloomier.Spring weather in Gunnison
Spring months in Gunnison see a notable transition in weather from March through May. March starts with minimum temperatures averaging around 12.4°F (-10.9°C), which gradually rise to reach 30.4°F (-0.9°C) by May. Highs similarly track an upward trajectory, moving from 35.2°F (1.8°C) in March to reach 56.8°F (13.8°C) in May. Rainfall registers a moderate increment, ranging from 0.91" (23mm) in March to 0.91" (23mm) in May.Summer weather in Gunnison
The summer period from June to August extends a warm respite to Gunnison's residents and visitors. June begins with an average low of 38.3°F (3.5°C), while August sees a high of 73.2°F (22.9°C). The town also witnesses its longest daylight hours during these months, going from 14.8 hours in June to 13.6 hours in August. Despite the warmer temperatures, rainfall does not see a significant increase, hovering around 0.59" (15mm) to 0.79" (20mm).Autumn weather in Gunnison
Autumn in Gunnison, occurring from September to November, sees temperatures dropping from 37.9°F (3.3°C) to 15.8°F (-9°C), making the weather increasingly brisk. Rainfall decreases in this period, going from 0.55" (14mm) in September to 0.55" (14mm) in November, accompanied by a decline in daylight hours from 12.4 hours in September to 10.1 hours in November.Winter weather in Gunnison
Winter season in Gunnison, spanning from December to February, is characterized by a severe chill with lows averaging between 1.9°F (-16.7°C) and 3.6°F (-15.8°C). Hailing as the coldest period in the year, there is also ample snowfall, reaching up to 6.5" (165mm) in December. Despite the increase in precipitation, daylight hours remain the shortest, beginning at 9.5 hours in December and extending up to 10.8 hours by February. This time of year is also marked by the highest relative humidity rates, oscillating between 83% to 88%.Weather in January
In Gunnison, Colorado, USA, January ushers in the New Year with low temperatures and high humidity. Relative humidity peaks at a high percentage of 87%, creating a noticeably damp environment often exacerbated by occasional snowfall. Weather in January »Weather in February
While February continues the chill of January, in Gunnison the weather starts to transition with slightly improved temperatures. The snow-pack increases compared to January with an expected accumulation of 6.97" (177mm) of snow. Weather in February »Weather in March
March brings with it the onset of spring and the promise of warmer days ahead in Gunnison. Despite marked improvements, wintry conditions remain with an average temperature below freezing at night and 6.81" (173mm) of snowfall. This fluctuation between winter and vernal conditions characterizes March. Weather in March »Weather in April
The gradual transition to spring continues into April, with warmer temperatures becoming more frequent in Gunnison. The earlier transition melts away the pristine snow cover, reducing snowfall to an average of 5.35" (136mm). April sees a significant increase in daily sunlight hours, adding a sense of brightness and warmth to the city. Weather in April »Weather in May
May marks the definitive arrival of spring in Gunnison with mild, temperate weather. Another marked decrease in snowfall occurs in May, dropping down to an average of 3.35" (85mm), heralding the last vestiges of winter's departure. Weather in May »Weather in June
As the gateway to summer, June brings significant changes to the weather in Gunnison. Summer vibes begin to take hold, and the average maximum temperature surpasses 70°F (21.1°C) for the first time since last summer. Increased daylight hours, along with milder temperatures, make June a delightful time for outdoor escapades. Weather in June »Weather in July
July represents the height of summer in Gunnison, with the warmest temperatures of the year. This month bears the distinction of having the highest average maximum temperature of the year at 75.6°F (24.2°C). These summer days are brimming with sunshine, typically warm, and provide plentiful daylight for outdoor activities. Weather in July »Weather in August
August remains firmly entrenched in summer in Gunnison, though there is a negligible dip from the pinnacle of July's heat. Tastes of the approaching autumn start to creep in as the intensity of the summer sun wanes slightly. Despite this, warmth is not quite ready to surrender its hold, and August remains significant for outdoor activities and travel. Weather in August »Weather in September
September in Gunnison signals the onset of autumn with gradually fading warmth, shorter days, and changing leaf colors. The transition from summer heat to autumn coolness can be sensed in the more moderate temperatures gracing the city. Weather in September »Weather in October
October plunges deeper into autumn in Gunnison with a notable drop in temperatures. The stark difference to the warmth experienced in recent months sets a pathway towards winter. Meanwhile, snowfall becomes commonplace once more in October, as the snow covers the city with an intrinsic charm. Weather in October »Weather in November
November in Gunnison indicates solid progression towards winter, with stark drops in temperature. The colder clime prepares residents for the impending winter, and snowfall increases to 4.02" (102mm), coating the landscape in a fresh layer of snow. Weather in November »Weather in December
December in Gunnison, Colorado, marks the official beginning of winter with its lowest temperatures and an increase in snowfall to a considerable 6.5" (165mm). The end of the year brings with it a true winter wonderland experience, where snow-covered landscapes and frosting chill becomes an everyday norm. Weather in December »Updated: Aug 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Gunnison's January weather, marked by an average high temperature of 26.4°F (-3.1°C) and an average low temperature of 1.9°F (-16.7°C), is the coldest in the year.
Throughout the year, there are 83.5 rainfall days, and 9.33" (237mm) of precipitation is accumulated.
January through June, August, October through December are months with snowfall.
In Gunnison, during the entire year, snow falls for 77.9 days and aggregates up to 41.65" (1058mm) of snow.
The months with the lowest UV index are January through April, October through December, with an average maximum UV index of 2.
The most humid month is February, with an average relative humidity of 88%.
The month with the most snowfall is February, when snow falls for 12.8 days and typically aggregates up to 6.97" (177mm) of snow.
The month with the least sunshine is February, with an average of 6.3h of sunshine.
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.
With an average relative humidity of 44%, June is the least humid month.
The month with the longest days is June, with an average of 14h and 48min of daylight.
With an average of 11.9h of sunshine, June has the most sunshine of the year.
July brings the highest temperatures, with an average high of 75.6°F (24.2°C) and an average low of 44.1°F (6.7°C).
July is the month with the most rainfall. Rain falls for 15.3 days and accumulates 1.3" (33mm) of precipitation.
July and September are months without snowfall in Gunnison.
July is the month with the highest UV index, with an average maximum UV index of 5.
The months with the least rainfall are September and November Rain falls for 8.1 days and accumulates 0.55" (14mm) of rain.
With an average of 9h and 30min of daylight, December has the shortest days of the year in Gunnison.
Average temperature
Gunnison, CO
The warmest month (with the highest average high temperature) is July (75.6°F).
The month with the lowest average high temperature is January (26.4°F).
The month with the highest average low temperature is July (44.1°F).
The coldest month (with the lowest average low temperature) is January (1.9°F).
Average pressure
Gunnison, CO
- Average pressure in January:
30.23"Hg - Average pressure in February:
30.12"Hg - Average pressure in March:
30.04"Hg - Average pressure in April:
29.94"Hg - Average pressure in May:
29.94"Hg - Average pressure in June:
29.97"Hg
- Average pressure in July:
30.06"Hg - Average pressure in August:
30.07"Hg - Average pressure in September:
30.06"Hg - Average pressure in October:
30.06"Hg - Average pressure in November:
30.13"Hg - Average pressure in December:
30.17"Hg
The month with the highest atmospheric pressure is January (30.23"Hg).
The months with the lowest atmospheric pressure are April and May (29.94"Hg).
Average wind speed
Gunnison, CO
- Average wind speed in January:
4.5mph - Average wind speed in February:
4.9mph - Average wind speed in March:
5.2mph - Average wind speed in April:
6.2mph - Average wind speed in May:
6.3mph - Average wind speed in June:
6.3mph
- Average wind speed in July:
4.7mph - Average wind speed in August:
4.7mph - Average wind speed in September:
4.8mph - Average wind speed in October:
5.2mph - Average wind speed in November:
4.6mph - Average wind speed in December:
4.5mph
The windiest months (with the highest average wind speed) are May and June (6.3mph).
The calmest months (with the lowest average wind speed) are January and December (4.5mph).
Average humidity
Gunnison, CO
The month with the highest relative humidity is February (88%).
The month with the lowest relative humidity is June (44%).
Average rainfall
Gunnison, CO
- Average rainfall in January:
0.59" - Average rainfall in February:
0.87" - Average rainfall in March:
0.91" - Average rainfall in April:
0.87" - Average rainfall in May:
0.91" - Average rainfall in June:
0.59"
- Average rainfall in July:
1.3" - Average rainfall in August:
0.79" - Average rainfall in September:
0.55" - Average rainfall in October:
0.63" - Average rainfall in November:
0.55" - Average rainfall in December:
0.79"
The wettest month (with the highest rainfall) is July (1.3").
The driest months (with the least rainfall) are September and November (0.55").
Average rainfall days
Gunnison, CO
- Average rainfall days in January:
4.5 days - Average rainfall days in February:
3.8 days - Average rainfall days in March:
5.3 days - Average rainfall days in April:
7.8 days - Average rainfall days in May:
8 days - Average rainfall days in June:
6.7 days
- Average rainfall days in July:
15.3 days - Average rainfall days in August:
11.1 days - Average rainfall days in September:
8.1 days - Average rainfall days in October:
5.5 days - Average rainfall days in November:
2.5 days - Average rainfall days in December:
4.9 days
The month with the highest number of rainy days is July (15.3 days).
The month with the least rainy days is November (2.5 days).
Average snowfall
Gunnison, CO
- Average snowfall in January:
4.69" - Average snowfall in February:
6.97" - Average snowfall in March:
6.81" - Average snowfall in April:
5.35" - Average snowfall in May:
3.35" - Average snowfall in June:
0.28"
The month with the highest snowfall is February (6.97").
The months with the least snowfall are July and September (0").
Average snowfall days
Gunnison, CO
- Average snowfall days in January:
11.2 days - Average snowfall days in February:
12.8 days - Average snowfall days in March:
11.8 days - Average snowfall days in April:
9.7 days - Average snowfall days in May:
5.5 days - Average snowfall days in June:
0.9 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0.1 days - Average snowfall days in September:
0.1 days - Average snowfall days in October:
5.7 days - Average snowfall days in November:
8.3 days - Average snowfall days in December:
11.8 days
The month with the highest number of snowfall days is February (12.8 days).
The month with the least snowfall days is July (0 days).
Average daylight / Average sunshine
Gunnison, CO
- Average daylight in January:
9h and 48min - Average daylight in February:
10h and 48min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 12min - Average daylight in May:
14h and 18min - Average daylight in June:
14h and 48min
- Average daylight in July:
14h and 30min - Average daylight in August:
13h and 36min - Average daylight in September:
12h and 24min - Average daylight in October:
11h and 12min - Average daylight in November:
10h and 6min - Average daylight in December:
9h and 30min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in January:
6h and 30min - Average sunshine in February:
6h and 18min - Average sunshine in March:
8h and 24min - Average sunshine in April:
10h and 48min - Average sunshine in May:
11h and 36min - Average sunshine in June:
11h and 54min
- Average sunshine in July:
11h and 42min - Average sunshine in August:
11h and 42min - Average sunshine in September:
11h and 12min - Average sunshine in October:
7h and 18min - Average sunshine in November:
7h and 12min - Average sunshine in December:
6h and 36min
The month with the most sunshine is June (Average sunshine: 11h and 54min).
The month with the least sunshine is February (Average sunshine: 6h and 18min).
Average sunshine days
Gunnison, CO
- Average sunshine days in January:
19.3 days - Average sunshine days in February:
15 days - Average sunshine days in March:
15.9 days - Average sunshine days in April:
14.7 days - Average sunshine days in May:
17.8 days - Average sunshine days in June:
19 days
- Average sunshine days in July:
9.7 days - Average sunshine days in August:
13.2 days - Average sunshine days in September:
16.9 days - Average sunshine days in October:
21.2 days - Average sunshine days in November:
21.2 days - Average sunshine days in December:
18.4 days
The months with the most sunshine days are October and November (21.2 days).
The month with the least sunshine days is July (9.7 days).
Average UV index
Gunnison, CO
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, March, April, October, November and December (UV index 2).
Average cloud cover
Gunnison, CO
The month with the most cloud cover is February (Cloud cover 35).
The months with the least cloud cover are June and September (Cloud cover 12).
Average visibility
Gunnison, CO
The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January and February (4mi).
