Yearly & Monthly weather

The climate of Denver
The best time to visit Denver
The worst time to visit Denver
Spring weather in Denver
Summer weather in Denver
Autumn weather in Denver
Winter weather in Denver
Weather in January
Weather in February
Weather in March
Weather in April
Weather in May
Weather in June
Weather in July
Weather in August
Weather in September
Weather in October
Weather in November
Weather in December
Frequently asked questions
Average temperature
Average pressure
Average wind speed
Average humidity
Average rainfall
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

The colorful sky above the sunlit Denver city, Colorado in autumn

The climate of Denver

The city of Denver in Colorado, USA is perched in the mid-latitude steppe, resulting in a classic BSk Köppen climate. The representation of this compelling geographical positioning manifests in its intriguing weather patterns that can fluctuate significantly throughout the year. Seasonal transitions are quite noticeable with monthly averages pointing to clear climatic shifts.

Temperatures in Denver display a broad range with the lowest average dip being 20.7°F (-6.3°C) in December and January, followed closely by February's 20.8°F (-6.2°C). This chilly spell gains momentum and peaks during the summer months with June, July, and August boasting comfortingly warm figures ranging from 81°F (27.2°C) to the highest at 84.4°F (29.1°C). The remainder of the year maintains a moderate hold on temperature, with the autumn months of September, October, and November ushering in a gentle decline in heat down to 61.3°F (16.3°C), 50.7°F (10.4°C), and 39.9°F (4.4°C) respectively.

When observing Denver's relative humidity, a fairly high concentration was noted during winter with December and January seeing 61% and 64% respectively. Spring brings a big turnaround with March and April recording the year's lowest figures at 55% and 52%, while summer and autumn months maintain the trend with relative humidity lingering between 41% and 47%.

On the precipitation front, torrential downpours are more prevalent from April to June with the town receiving substantial rainfall, increasing from 1.42" (36mm) in April to a high of 2.36" (60mm) in May. The month with the least rainfall is December with a meager 0.39" (10mm).

Another prominent feature about Denver's weather is its sunny disposition. Even in the shorter daylight months of December and January, the city experiences an average of 7.1 hours of sunshine. The amount of sunshine per day peaks between May to August with the sun-filled hours soaring to a high of 11.8.

The best time to visit Denver

Tourists seeking to enjoy Denver's amiable weather patterns would find the city most welcoming between June to August. With temperatures reaching a comfortable high between 81°F (27.2°C) and 84.4°F (29.1°C) and the relative humidity levels being quite low from 41% to 44%, this period offers pleasant conditions for outdoor activities. Visitors are also primed to bask in an average of 11.8 hours of sunshine, which is the maximum for the year. Although June is the wettest month with rainfall of 2.36" (60mm), Denver's robust sunshine hours ensure weather disruptions are minimal.

The worst time to visit Denver

Travellers may find the frigid weather from December to February rather challenging. The mercury dips to a yearly low with the average temperature plunging to 20.7°F (-6.3°C) in December and January, which escalates to a slightly warmer 20.8°F (-6.2°C) in February. High relative humidity at 61% and 64% during these months further intensifies the cold, making it less inviting for visitors. Furthermore, the shorter daylight hours during this period along with incessant snowfall of up to 6.26" (159mm) in March can deter sightseeing activities.

Spring weather in Denver

The city's spring months of March, April, and May witness an invigorating shift in weather conditions. Starting from a chilly 29.7°F (-1.3°C) in March, the temperature steadily ascends reaching 42.4°F (5.8°C) in May. However, spring also brings along increased levels of rainfall, culminating in May with a high of 2.36" (60mm). The increase in daylight hours reaching up to 14.4 in May is another defining characteristic of spring in Denver.

Summer weather in Denver

Denver's summers from June to August are enticing with temperatures gently swaying between an inviting 81°F (27.2°C) and 84.4°F (29.1°C). But despite the warmth, the relative humidity remains comfortably low, hovering around 41% to 44%. With an enviable average of 11.8 hours of sunshine and limited rainfall, these months undoubtedly present the most favourable weather conditions in Denver.

Autumn weather in Denver

The autumn months of September to November welcome a gradual decrease in temperature, with the average sliding from 76.6°F (24.8°C) in September down to a cooler 39.9°F (4.4°C) in November. Although the relative humidity begins to rise during this period, it stays within a moderate range between 43% and 52%. The month of September glorifies the city with a peak annual low of 0.71" (18mm) of rainfall, making it an ideal period for outdoor exploration.

Winter weather in Denver

With winter setting in, December to February is notably frigid with temperatures progressively slipping down to an average of 20.7°F (-6.3°C) in December and January. Factoring in the heightened relative humidity levels that hover around 61% to 64%, the chill intensifies substantially. Despite enduring heavier rainfall, the city still welcomes an average of 7.1 hours of sunshine per day, providing some respite from the chill. Despite the challenging conditions, winter sports enthusiasts might find this season most appealing.

Weather in January

The weather in Denver, Colorado begins the year with winter-like conditions and typically experiences relatively mild temperatures compared to its neighbouring regions situated at similar latitudes. Noticeable periods of sunshine span over twenty-two days each month, offering moderately clear skies and opportunities for outdoor activities despite the brisk conditions. Weather in January »

Weather in February

  Denver's February weather exhibits less fluctuation than its predecessor, revealing a gradual increase in daylight hours, indicating the onset of spring. The contrast from January is evident, most notably with snowfall elevating to 5.94" (151mm). Weather in February »

Weather in March

Denver's weather transitions into a new phase as it enters March. Showing signs of spring, March reveals a marginal rise in temperature, specifically with a high climbing to 51.4°F (10.8°C), indicating a shift from the cold winter days of February. Weather in March »

Weather in April

  Denver's April brings a significant change in the city's weather profile. The mercury level rises, reaching an average high of 57.2°F (14°C), which stimulates the region's flora and fauna after a long winter dormancy. Weather in April »

Weather in May

  As Denver steps into May, the city embraces clear signs of spring and lays down the groundwork for the sweltering heat of the impending summer. With an average high soaring up to 65.8°F (18.8°C), May indicates a considerable shift from the chills of April, encapsulating the biggest upward temperature trend of the year. Weather in May »

Weather in June

  Denver's June weather showcases the arrival of summer, notable for its prolonged daylight hours and enhanced sunshine days. The month's core characteristic is its average high temperature reaching 81°F (27.2°C), which is a massive leap from May's mild temperature. Weather in June »

Weather in July

  Denver's July marks the peak of summer with warm temperatures and ample sunshine brightening the city's weather scenario. The spotlight of July falls on its temperature, hitting the year's highest mark with an average high of 84.4°F (29.1°C). Weather in July »

Weather in August

  Denver's August closely follows July, persisting with similar summer weather patterns. August's temperature maintains high marks, with a slight decrease in the average high temperature to 83.1°F (28.4°C), assuring prolonged summer activities. Weather in August »

Weather in September

  As Denver transitions into September, the city experiences a gradual change in its weather outlook. No longer peaking at summer highs, the temperature in September moderately decreases with an average high placed at 76.6°F (24.8°C). Weather in September »

Weather in October

  Denver's October brings a noticeable shift in weather with shorter days accompanied by cooler temperatures. Compared to September, October sees a notable dip in the temperature with an average high falling to 61.3°F (16.3°C), signifying the onset of the cooler season. Weather in October »

Weather in November

  As Denver welcomes November, the city transitions into more pronounced autumnal weather. Building upon the cooling trend from October, the temperature sees a plunge with an average high lowering to 50.7°F (10.4°C). Weather in November »

Weather in December

Denoting the arrival of winter, Denver's December weather signifies a significant transition from the mild autumn temperatures of November. The average high drops notably to 39.9°F (4.4°C), bringing back the winter chill. As the shortest daylight hours of the year take effect, December hosts diverse winter activities due to the 3.31" (84mm) of snowfall. Weather in December »

Updated: Feb 10, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the driest month in Denver?

The months with the least rainfall in Denver, Colorado, are January and December Rain falls for 3.7 days and accumulates 0.39" (10mm) of rain.

How many days does it rain in Denver?

Throughout the year, there are 119.5 rainfall days, and 12.95" (329mm) of precipitation is accumulated.

When does it snow in Denver?

Months with snowfall in Denver, Colorado, are January through May, October through December.

How much does it snow in Denver?

In Denver, Colorado, during the entire year, snow falls for 43.5 days and aggregates up to 35.67" (906mm) of snow.

What is the month with the lowest UV index in Denver?

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Denver, Colorado.

What is the most humid month in Denver?

February is the most humid month in Denver, Colorado, with an average relative humidity of 66%.

What is the month with the least sunshine in Denver?

February has the least sunshine of the year in Denver, with an average of 6.9h of sunshine.

When does it snow the most in Denver?

The month with the most snowfall in Denver, Colorado, is March, when snow falls for 6.7 days and typically aggregates up to 6.26" (159mm) of snow.

When is Daylight Saving Time (DST) in Denver?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Denver, 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 wettest month in Denver?

May is the month with the most rainfall in Denver. Rain falls for 18.2 days and accumulates 2.36" (60mm) of precipitation.

What is the least humid month in Denver?

With an average relative humidity of 41%, June is the least humid month.

When it does not snow in Denver?

June through September are months without snowfall in Denver.

When are the longest days in Denver?

June has the longest days of the year, with an average of 14h and 54min of daylight.

What is the month with the most sunshine in Denver?

The months with the most sunshine are June through August, with an average of 11.8h of sunshine.

What are the months with the highest UV index in Denver?

June and July, with an average maximum UV index of 6, are months with the highest UV index.

What is the hottest time of year in Denver?

Denver's temperatures tend to reach their peak averages in July, with a high of 84.4°F (29.1°C) and a low of 59.2°F (15.1°C).

What is the coldest month in Denver?

The coldest month in Denver is December, with an average high-temperature of 39.9°F (4.4°C) and an average low-temperature of 20.7°F (-6.3°C).

What is the month with the shortest days in Denver?

The month with the shortest days is December, with an average of 9h and 24min of daylight.

Average temperature
Denver, CO

Average high temperature in January:
4.7°C
Average high temperature in February:
4.7°C
Average high temperature in March:
10.8°C
Average high temperature in April:
14°C
Average high temperature in May:
18.8°C
Average high temperature in June:
27.2°C

Average high temperature in July:
29.1°C
Average high temperature in August:
28.4°C
Average high temperature in September:
24.8°C
Average high temperature in October:
16.3°C
Average high temperature in November:
10.4°C
Average high temperature in December:
4.4°C

The warmest month (with the highest average high temperature) is July (29.1°C).
The month with the lowest average high temperature is December (4.4°C).

Average low temperature in January:
-5.8°C
Average low temperature in February:
-6.2°C
Average low temperature in March:
-1.3°C
Average low temperature in April:
1.3°C
Average low temperature in May:
5.8°C
Average low temperature in June:
12.5°C

Average low temperature in July:
15.1°C
Average low temperature in August:
14.6°C
Average low temperature in September:
10.8°C
Average low temperature in October:
3.5°C
Average low temperature in November:
-1.6°C
Average low temperature in December:
-6.3°C

The month with the highest average low temperature is July (15.1°C).
The coldest month (with the lowest average low temperature) is December (-6.3°C).

Average pressure
Denver, CO

Average pressure in January:
1020.7mbar
Average pressure in February:
1018.4mbar
Average pressure in March:
1015.8mbar
Average pressure in April:
1012.9mbar
Average pressure in May:
1013.2mbar
Average pressure in June:
1013.1mbar

Average pressure in July:
1016.3mbar
Average pressure in August:
1016.4mbar
Average pressure in September:
1016.3mbar
Average pressure in October:
1016.9mbar
Average pressure in November:
1018.6mbar
Average pressure in December:
1019.9mbar

The month with the highest atmospheric pressure is January (1020.7mbar).
The month with the lowest atmospheric pressure is April (1012.9mbar).

Average wind speed
Denver, CO

Average wind speed in July:
9.3km/h
Average wind speed in August:
9.2km/h
Average wind speed in September:
9.2km/h
Average wind speed in October:
9.4km/h
Average wind speed in November:
9.7km/h
Average wind speed in December:
9.4km/h

The windiest month (with the highest average wind speed) is April (10.6km/h).
The calmest months (with the lowest average wind speed) are August and September (9.2km/h).

Average humidity
Denver, CO

The month with the highest relative humidity is February (66%).
The month with the lowest relative humidity is June (41%).

Average rainfall
Denver, CO

The wettest month (with the highest rainfall) is May (60mm).
The driest months (with the least rainfall) are January and December (10mm).

Average rainfall days
Denver, CO

Average rainfall days in January:
3.7 days
Average rainfall days in February:
4.3 days
Average rainfall days in March:
9.3 days
Average rainfall days in April:
12.3 days
Average rainfall days in May:
18.2 days
Average rainfall days in June:
13.9 days

Average rainfall days in July:
18.4 days
Average rainfall days in August:
15.1 days
Average rainfall days in September:
9.5 days
Average rainfall days in October:
6.1 days
Average rainfall days in November:
4.4 days
Average rainfall days in December:
4.3 days

The month with the highest number of rainy days is July (18.4 days).
The month with the least rainy days is January (3.7 days).

Average snowfall
Denver, CO

The month with the highest snowfall is March (159mm).
The months with the least snowfall are June, July, August and September (0mm).

Average snowfall days
Denver, CO

Average snowfall days in January:
6.3 days
Average snowfall days in February:
9.3 days
Average snowfall days in March:
6.7 days
Average snowfall days in April:
4.8 days
Average snowfall days in May:
1.8 days
Average snowfall days in June:
0 days

Average snowfall days in July:
0 days
Average snowfall days in August:
0 days
Average snowfall days in September:
0.1 days
Average snowfall days in October:
2.8 days
Average snowfall days in November:
4.7 days
Average snowfall days in December:
7 days

The month with the highest number of snowfall days is February (9.3 days).
The months with the least snowfall days are June, July and August (0 days).

Average daylight / Average sunshine
Denver, CO

Average daylight in January:
9h and 4min
Average daylight in February:
10h and 4min
Average daylight in March:
12h and 0min
Average daylight in April:
13h and 2min
Average daylight in May:
14h and 2min
Average daylight in June:
14h and 5min

Average daylight in July:
14h and 4min
Average daylight in August:
13h and 4min
Average daylight in September:
12h and 2min
Average daylight in October:
11h and 1min
Average daylight in November:
10h and 0min
Average daylight in December:
9h and 2min

The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).

Average sunshine in January:
7h and 1min
Average sunshine in February:
6h and 5min
Average sunshine in March:
9h and 1min
Average sunshine in April:
10h and 5min
Average sunshine in May:
11h and 1min
Average sunshine in June:
11h and 5min

Average sunshine in July:
11h and 5min
Average sunshine in August:
11h and 5min
Average sunshine in September:
11h and 1min
Average sunshine in October:
7h and 2min
Average sunshine in November:
7h and 2min
Average sunshine in December:
7h and 1min

The months with the most sunshine are June, July and August (Average sunshine: 11h and 48min).
The month with the least sunshine is February (Average sunshine: 6h and 54min).

Average sunshine days
Denver, CO

Average sunshine days in January:
22.7 days
Average sunshine days in February:
16.7 days
Average sunshine days in March:
16.6 days
Average sunshine days in April:
11.8 days
Average sunshine days in May:
9.1 days
Average sunshine days in June:
10.7 days

Average sunshine days in July:
5.6 days
Average sunshine days in August:
8.8 days
Average sunshine days in September:
14.9 days
Average sunshine days in October:
20.7 days
Average sunshine days in November:
23 days
Average sunshine days in December:
22.4 days

The month with the most sunshine days is November (23 days).
The month with the least sunshine days is July (5.6 days).

Average UV index
Denver, CO

The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).

Average cloud cover
Denver, CO

The month with the most cloud cover is April (Cloud cover 26).
The month with the least cloud cover is September (Cloud cover 15).

Average visibility
Denver, CO

The months with the highest visibility are January, March, April, May, June, July, August, September, October, November and December (10km).
The month with the lowest visibility is February (9km).

Climate and monthly weather forecastDenver, CO

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