June Weather in Fort Collins, United States

Last updated: February 24, 2025

In June, Fort Collins, United States, experiences a diverse range of weather conditions. With a maximum temperature soaring to 38°C (100°F) and an average of 20°C (68°F), this month marks a blend of warm summer days. Nights cool down to a pleasant minimum temperature of 5°C (41°F), providing a welcome respite. Rainfall amounts to 40 mm (1.6 in) spread across approximately 8 days, contributing to a relative humidity of 68%. This combination of warmth and moisture makes June an engaging time for both residents and visitors to enjoy the outdoors while embracing the changing weather patterns.

June Temperature in Fort Collins

In June, Fort Collins truly embraces summer, showcasing a remarkable transformation from the bitter cold of winter to warm, inviting days. With minimum temperatures rising to a pleasant 5°C (41°F) and an average hovering around 20°C (68°F), residents and visitors alike can enjoy outdoor activities in the sunshine. The daily highs can reach an impressive 38°C (100°F), marking June as one of the hottest months of the year. This significant leap in temperature not only highlights the region's transition to summer warmth but also sets the stage for vibrant community events and abundant natural beauty, making it a favorite time for locals to explore the outdoors.

June Weather in Fort Collins: Daily Temperature Highs, Lows, and Averages

The chart illustrates June temperature patterns in Fort Collins, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec302940475568747265484033
Data source: Temperature data for Fort Collins generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

June Precipitation in Fort Collins

In June, Fort Collins experiences a moderate shift in precipitation, receiving 40 mm (1.6 in) of rain over approximately 8 days. This marks a notable decrease from the 116 mm (4.6 in) and 14 days of rainfall seen in May, highlighting a transition as the region moves into the warmer summer months. Following the peak of May, June's precipitation offers a respite, setting the stage for a drier July, which typically sees just 30 mm (1.2 in). Overall, the precipitation pattern from January to June showcases a gradual buildup through spring, peaking in May before tapering off in the early summer, creating a seasonal rhythm that contributes to the region's ecological balance.

June Precipitation Trends in Fort Collins

The chart displays monthly precipitation patterns in Fort Collins, with values for each month alongside June's data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how June's conditions compare to those of other months.
JanFebMarAprMayJunJulAugSepOctNovDec1723535311640303726362116
Data source: Precipitation data for June generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

June Humidity in Fort Collins

In Fort Collins, June brings a shift in humidity patterns, settling at 68%, a slight increase from May’s 67%. As the year progresses, humidity levels generally decrease from the spring into the summer months, with July and August dipping to 62% and 63% respectively. This trend highlights a transition from the higher humidity levels experienced in winter months, where January and February peak at 84% and 85%. Overall, the moderate June humidity reflects a comfortable balance as the region moves into the warmer summer season, providing an enjoyable atmosphere for outdoor activities.

June Average Humidity in Fort Collins

This chart illustrates the average monthly humidity levels in Fort Collins, with June's data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, allowing you to see how June's humidity levels compare to other months.
JanFebMarAprMayJunJulAugSepOctNovDec84%86%75%67%67%68%62%63%63%72%80%85%
Data source: Humidity data for June generated using information from the Copernicus Climate Change Service.

June UV Index in Fort Collins

In June, Fort Collins experiences its peak UV Index, soaring to 12 and categorizing the risk as extreme. This marks a significant progression from the earlier months—April and May also displayed extreme conditions with an index of 11—but June takes sun safety to a new level. With a burn time of just 10 minutes, outdoor enthusiasts should take extra precautions during this month. As summer unfolds, the need for sunscreen and protective clothing intensifies, making awareness of these trends essential for enjoying the sunny days safely. For more detailed insights, visit Fort Collins UV Index.

Maximum UV Index Levels in Fort Collins for June

The chart shows the monthly maximum UV Index (UVI) for Fort Collins in June, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues.
JanFebMarAprMayJunJulAugSepOctNovDec46811111212119643
Data source: Fort Collins June UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

June Sunshine in Fort Collins

As summer unfolds in Fort Collins, June shines brightly with 374 hours of sunshine, marking a peak in the region's annual illumination. Following the steady increase from 185 hours in January to 327 hours in May, June brings a delightful transition into the sun-drenched days of summer. The city basks in its glory, as July continues this trend with an even higher total of 382 hours, promising long, vibrant days filled with outdoor adventures. This sunshine trend not only enhances the beauty of Fort Collins but also invites the community to embrace the joys of summer while anticipating the gradual decline as the days shorten in the approaching fall.

Monthly Sunshine Duration in Fort Collins: June Highlighted

The June sunshine duration represents the total number of hours Fort Collins experiences direct sunlight during the month of June, excluding cloudy or obstructed periods. This chart compares the sunshine duration of June with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec185h234h285h300h327h374h382h352h306h272h248h237h
Data source: Fort Collins June Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Fort Collins During June

In June, Fort Collins experiences a refreshing surge in sunny days with a notable 57% chance of sunshine. This marks a slight increase from the preceding months, where the likelihood dipped to 39% in May. As the summer unfolds, the city reaches even greater heights of sun-soaked days, peaking at 62% in July and 66% in August. Interestingly, the trend shows that from early spring through summer, the probability of sun gradually escalates, making June a perfect time for outdoor enthusiasts to embrace the warm weather before it reaches its annual zenith. Overall, June sets the stage for a delightful transition into the sun-kissed days ahead.

Percentage of Sunny Days in June in Fort Collins

The chart illustrates the percentage of sunny days in Fort Collins throughout the year, with June highlighted. It highlights the variation in sunshine across each month and provides an overview of the typical frequency of sunny days, offering insights into how often Fort Collins experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec56%49%50%51%39%57%62%66%69%65%62%66%
Data source: Fort Collins June chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Fort Collins in June

As the seasons change, Fort Collins experiences a noticeable increase in daylight duration, culminating in June with an impressive 15 hours of sunlight. This month marks the peak of sunlight, following a gradual rise from 9 hours in January. The transition from spring to early summer showcases a delightful progression, where longer days foster a vibrant atmosphere and encourage outdoor activities. Following June, daylight begins to wane slightly in July and August, yet the lingering warmth of summer keeps spirits high. Overall, the data highlights a rhythmic cycle, inviting residents and visitors alike to enjoy the abundant sunshine in June, a perfect time to savor the beauty of this picturesque city.

Average Daylight Hours in Fort Collins for June

The chart illustrates the variation in daylight duration in Fort Collins throughout the year, with June highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 38m10h 40m11h 58m13h 19m14h 26m15h14h 41m13h 41m12h 24m11h 4m9h 54m9h 19m
Data source: Fort Collins daylight hours, calculated by summing the hours between sunrise and sunset for each day.

June Winds in Fort Collins

As June unfolds in Fort Collins, the average wind speed remains a consistent 2.3 m/s (5 mph), mirroring the gentle breezes of the previous month. This stability contributes to a serene outdoor atmosphere, perfect for summer activities. Throughout the year, wind speeds show a mild fluctuation; they peak modestly in April at 2.7 m/s (6 mph) before gradually tapering off into July's slightly calmer 2.1 m/s (5 mph). Notably, the wind conditions remain fairly constant from late spring through early fall, providing a welcome backdrop for the vibrant summer scene. Overall, the gentle winds of June help maintain the charm of Fort Collins, enhancing its appeal as a delightful summer destination.

Average June Wind Speed in Fort Collins

The chart displays monthly wind speed patterns in Fort Collins, with values for each month shown alongside June's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how June's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec2.42.52.42.72.32.3 m/s2.12.42.42.52.42.4
Data source: Fort Collins June wind data, generated using information from the Copernicus Climate Change Service.

How June Weather in Fort Collins Compares to Other Months

The weather in Fort Collins changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of June's weather with other months, highlighting differences in temperature, precipitation, and other key factors. Click on each section to discover seasonal trends in Fort Collins and find detailed weather information for every month.

June and January present a stark contrast in weather conditions. In June, temperatures range from a mild 5°C (41°F) to a scorching 38°C (100°F), with an average of 20°C (68°F). The month sees around 40 mm (1.6 in) of precipitation over 8 days, with a humidity level of 68%. In contrast, January experiences much colder temperatures, with a minimum of -26°C (-14°F) and a maximum of 17°C (62°F), averaging around -1°C (30°F). Precipitation during this month is lower, totaling 17 mm (0.7 in) over just 4 days, although the humidity is higher at 84%. For more detailed insights about January weather, you can check Fort Collins weather in January.

When comparing the weather in June and February, a stark contrast emerges. June enjoys a warm average temperature of 20°C (68°F) with highs peaking at 38°C (100°F) and a moderate amount of precipitation at 40 mm (1.6 in) over about 8 days, accompanied by a humidity level of 68%. In contrast, February experiences much colder conditions, with an average temperature of -2°C (29°F) and minimums plummeting to -25°C (-13°F). Precipitation is lower at 23 mm (0.9 in) across about 6 days, but higher humidity at 85% adds to the chill. For more detailed insights, you can check Fort Collins weather in February.

March and June present strikingly different weather patterns. In March, temperatures range from a frigid minimum of -21°C (-5°F) to a mild maximum of 26°C (79°F), with an average of just 4°C (40°F). The month sees about 53 mm (2.1 in) of precipitation over approximately 9 days, accompanied by a humidity level of 75%. In contrast, June experiences much warmer conditions, with minimum temperatures of 5°C (41°F) and a maximum soaring to 38°C (100°F), resulting in an average of 20°C (68°F). Precipitation decreases to 40 mm (1.6 in) across 8 days, yet humidity remains high at 68%. For more detailed insights into the climate of March, you can visit Fort Collins weather in March.

When comparing the weather in June to that of April, it's clear that June is significantly warmer, with average temperatures soaring to around 20°C (68°F) and maximums reaching as high as 38°C (100°F). In contrast, April starts much colder with a low of -13°C (9°F) and an average of only 8°C (47°F). Although both months experience a similar level of humidity, with June at 68% and April at 67%, April sees slightly more precipitation at 53 mm (2.1 in) over 10 days, compared to June's 40 mm (1.6 in) over 8 days. For more detailed information about April's weather, you can visit Fort Collins weather in April.

In comparing the weather between May and June, notable differences emerge in temperature and precipitation patterns. June generally experiences warmer temperatures, with a minimum of 5°C (41°F) and a maximum reaching up to 38°C (100°F), while May's temperatures range from a chilly -3°C (27°F) to a more moderate 31°C (88°F). Additionally, May sees significantly higher precipitation, totaling 116 mm (4.6 in) over 14 days, compared to June's 40 mm (1.6 in) over just 8 days. Humidity levels remain fairly similar, with May at 67% and June slightly higher at 68%. For more detailed insights, check out Fort Collins weather in May.

In June, temperatures range significantly from a minimum of 5°C (41°F) to a maximum of 38°C (100°F), with an average of 20°C (68°F). The month experiences about 40 mm (1.6 in) of precipitation over 8 days, coupled with a humidity level of 68%. In contrast, July sees a slightly warmer average temperature of 23°C (74°F) with minimums around 9°C (49°F) and maximums reaching 37°C (99°F). Rainfall decreases to 30 mm (1.2 in) over 6 days, and humidity drops to 62%. For more detailed weather information, check out Fort Collins weather in July.

In comparing the weather between June and August, June experiences a broader temperature range, with minimums dropping to 5°C (41°F) and maximums soaring up to 38°C (100°F), while August maintains a slightly warmer average, with minimums at 10°C (50°F) and maximums reaching 36°C (98°F). The average temperature in June sits at 20°C (68°F), compared to August's average of 22°C (72°F). Precipitation levels are similar, with June receiving 40 mm (1.6 in) over 8 days and August having slightly less at 37 mm (1.5 in) over just 6 days. Additionally, June's humidity is higher at 68%, contrasted with August's lower humidity of 63%. For more details, check out Fort Collins weather in August.

June typically sees warmer temperatures with an average of 20°C (68°F) and highs reaching up to 38°C (100°F), whereas September starts cooling down, featuring an average temperature of 19°C (66°F) and maximums of 37°C (99°F). Precipitation is slightly higher in June, totaling 40 mm (1.6 in) over about 8 days compared to September's 26 mm (1.0 in) over just 4 days, indicating drier conditions as summer transitions into fall. Additionally, humidity levels are a bit higher in June at 68%, while September enjoys a slightly lower humidity of 63%. For more details on the specific weather conditions, check Fort Collins weather in September.

June and October weather present a striking contrast. In June, temperatures typically range from a minimum of 5°C (41°F) to a maximum of 38°C (100°F), with an average of 20°C (68°F), and the month sees about 40 mm (1.6 in) of precipitation over roughly 8 days, accompanied by a humidity level of 68%. In contrast, October experiences cooler temperatures, with a minimum of -16°C (3°F), averaging 9°C (49°F), and a maximum of 29°C (84°F). The precipitation in October is slightly less at 36 mm (1.4 in) over about 7 days, and humidity rises to 72%. For a detailed look at the weather conditions in October, you can visit Fort Collins weather in October.

June and November present distinctly different weather patterns. In June, temperatures can range from a chilly 5°C (41°F) to a scorching high of 38°C (100°F), with an average of 20°C (68°F). The month sees about 40 mm (1.6 in) of precipitation spread over approximately 8 days, accompanied by a humidity level of 68%. In contrast, November brings much colder temperatures, with a minimum of -15°C (6°F) and a maximum of 25°C (77°F), averaging just 4°C (40°F). Precipitation decreases to 21 mm (0.8 in) over 5 days, while humidity rises to 79%. This stark contrast illustrates the seasonal shift as summer transitions to winter. For more details about weather patterns you can visit Fort Collins weather in November.

June and December exhibit stark contrasts in weather patterns. June typically sees mild to hot temperatures, with a minimum of 5°C (41°F), an average of 20°C (68°F), and a maximum of 38°C (100°F). This month also experiences relatively moderate rainfall, accumulating 40 mm (1.6 in) over about 8 days, with humidity levels around 68%. In contrast, December is much colder, with temperatures ranging from a minimum of -16°C (3°F) to a maximum of 22°C (72°F) but averaging just 1°C (33°F). Precipitation is lighter, with only 16 mm (0.6 in) falling over roughly 3 days, and humidity is higher at 85%. The differences in temperature and precipitation between these two months highlight the seasonal shifts experienced in this region. For more details, visit Fort Collins weather in December.

Compare Fort Collins's Climate with Cities Worldwide

Conclusion: What to Expect From June Weather in Fort Collins

As June unfolds in Fort Collins, it brings a significant shift in weather patterns compared to the cooler spring months. With temperatures soaring to maximums that can reach 38°C, residents experience a vibrant summer atmosphere filled with warmth. While average temperatures hover around 20°C, the pleasant days often compete with occasional rainfall, adding a refreshing touch to the landscape. With humidity levels around 68%, the month's wet days are notably less frequent, totaling roughly eight days of precipitation that contribute to the region's lush beauty. This blend of warmth and moisture makes June a unique and inviting time in Fort Collins. For a deeper understanding of what to expect, explore more at Fort Collins Climate.