June Weather in Flagstaff, United States

Last updated: February 24, 2025

In June, Flagstaff, United States, experiences a delightful range of temperatures, with a maximum reaching 35°C (95°F) and an average of 20°C (69°F), complemented by a refreshing minimum of 3°C (37°F) during cooler nights. With only 11 mm (0.4 in) of precipitation spread over just 2 days, the month enjoys predominantly dry conditions, allowing for plenty of sunshine and outdoor activities. The average humidity stands at a comfortable 35%, making June an ideal time to explore the natural beauty and vibrant landscapes of this mountainous region.

June Temperature in Flagstaff

In June, Flagstaff, United States, experiences a delightful transition into summer, marked by significantly milder temperatures compared to the winter months. With minimums around 3°C (37°F) and maximums peaking at a warm 35°C (95°F), this month brings an invigorating average of 20°C (69°F), offering a welcome break from the chilly extremes felt earlier in the year. As the landscape flourishes under abundant sunshine, outdoor enthusiasts flock to the region, making the most of the favorable weather. This rise in temperatures not only highlights the onset of summer but also sets the stage for enjoyable adventures amidst Flagstaff's stunning natural beauty.

June Weather in Flagstaff: Daily Temperature Highs, Lows, and Averages

The chart illustrates June temperature patterns in Flagstaff, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec323339495668706963514233
Data source: Temperature data for Flagstaff 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 Flagstaff

In June, Flagstaff experiences a notable decline in precipitation, recording only 11 mm (0.4 in) over just 2 days. This marks the driest month of the year, providing a stark contrast to the preceding months, where spring showers contribute to a more robust total. The low rainfall in June sets the stage for the significant deluge that follows in July, when the region typically receives an impressive 148 mm (5.8 in) across 16 days. This transition highlights the shift from the relatively dry late spring to the intense monsoon season, underscoring Flagstaff's unique climatic patterns. As June wraps up, the anticipation of the July rains becomes palpable, promising refreshment for the arid landscape.

June Precipitation Trends in Flagstaff

The chart displays monthly precipitation patterns in Flagstaff, 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.
JanFebMarAprMayJunJulAugSepOctNovDec4750612232111486949343037
Data source: Precipitation data for June generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

June Humidity in Flagstaff

As summer rolls in, Flagstaff bids farewell to its typically humid winter months, revealing a significant decline in humidity levels. In June, the humidity dips to a comfortable 35%, a marked contrast from the dampness experienced earlier in the year with January and February boasting humidity levels of 80% and 83%, respectively. The trend continues into July where humidity further decreases to 33%, offering a refreshing respite as temperatures rise. This seasonal transition highlights Flagstaff’s shift from cool, moist winter air to the crisp, drier summer climate, making June a prime time to enjoy the outdoors without the weight of excessive humidity. As the months progress into late summer and fall, humidity begins to climb again, peaking at 79% in November, but for those seeking the most pleasant conditions, June stands out as an ideal time to experience the beauty of this high-altitude retreat.

June Average Humidity in Flagstaff

This chart illustrates the average monthly humidity levels in Flagstaff, 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.
JanFebMarAprMayJunJulAugSepOctNovDec80%83%72%63%46%35%33%41%59%70%79%82%
Data source: Humidity data for June generated using information from the Copernicus Climate Change Service.

June UV Index in Flagstaff

In June, Flagstaff experiences an intense surge in UV exposure, with the UV Index soaring to 13, which falls into the extreme category. This marks a notable peak as the region transitions from the higher indices of previous months, such as 12 in May, while maintaining the same extreme level through July. With a burn time of just 10 minutes, it's crucial to take protective measures against sunburn, especially when enjoying outdoor activities in the bright Arizona sun. As the summer progresses, residents and visitors should remain vigilant about UV safety, following the trends that indicate an increase in solar intensity during this time of year. For more detailed insights, visit Flagstaff UV Index.

Maximum UV Index Levels in Flagstaff for June

The chart shows the monthly maximum UV Index (UVI) for Flagstaff 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.
JanFebMarAprMayJunJulAugSepOctNovDec589111213131211864
Data source: Flagstaff 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 Flagstaff

In June, Flagstaff basks in an impressive 375 hours of sunshine, marking the peak of its warm season. This month tops the charts, showing a steady rise from May's 374 hours and preceding a slight dip as summer progresses into July with 361 hours. The trend of increasing sunlight from the beginning of the year is evident, as each month leading to June, from a modest 188 hours in January to a flourishing 331 hours in April, showcases a brightening landscape. This annual crescendo of sunshine enhances Flagstaff’s charm, inviting locals and visitors alike to relish the outdoors during the sun-drenched days of June.

Monthly Sunshine Duration in Flagstaff: June Highlighted

The June sunshine duration represents the total number of hours Flagstaff 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.
JanFebMarAprMayJunJulAugSepOctNovDec188h242h301h331h374h375h361h348h316h294h258h232h
Data source: Flagstaff June Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Flagstaff During June

In June, Flagstaff experiences a 60% chance of sunny weather, which reflects a slight dip compared to the peak sunny days in May at 77%. This month's sunshine likelihood follows a consistent upward trend from January through May, showcasing the arrival of summer and a growing abundance of sunshine. However, as the summer progresses into July, the chance of sunny days significantly decreases to 31%, indicating a potential shift towards the monsoon season. Overall, while June offers a commendable chance of pleasant sunny days, it serves as a transitional month before the seasonal weather patterns take a dramatic turn. Enjoy the early summer warmth while it lasts!

Percentage of Sunny Days in June in Flagstaff

The chart illustrates the percentage of sunny days in Flagstaff 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 Flagstaff experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec51%71%64%73%77%60%31%58%67%67%75%48%
Data source: Flagstaff June chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Flagstaff in June

In Flagstaff, United States, the transition into summer brings an exciting increase in daylight duration, particularly in June, when residents enjoy approximately 14 hours of sunlight. This pattern reveals a steady climb from the 10 hours of daylight in January, gradually increasing through the spring months as the days lengthen. April marks a noticeable leap to 13 hours, setting the stage for the peak summer months. Interestingly, while June and July share the same daylight duration, the gradual decline starts in August, as the days shorten to 13 hours. This rhythmic ebb and flow of daylight highlights Flagstaff's seasonal shifts, painting a vibrant picture of the changing year, with June standing out as a luminous hub of extended daylight and outdoor possibilities.

Average Daylight Hours in Flagstaff for June

The chart illustrates the variation in daylight duration in Flagstaff throughout the year, with June highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec10h 4m10h 55m11h 59m13h 6m14h 1m14h 28m14h 13m13h 24m12h 20m11h 14m10h 17m9h 48m
Data source: Flagstaff daylight hours, calculated by summing the hours between sunrise and sunset for each day.

June Winds in Flagstaff

In Flagstaff, June marks a subtle shift in the wind patterns, with an average speed of 2.9 m/s (6 mph). This slight decrease from the spring months, which saw a peak of 3.6 m/s (8 mph) in April, signifies a transition into the warmer season. Interestingly, June's winds are notably calmer compared to the more blustery earlier months, nestled between the gusty springtime and the lighter breezes of July, which dips to 2.0 m/s (4 mph). Overall, June serves as a bridge, where mellow winds invite residents and visitors alike to bask in the gentle warmth of summer while enjoying the serene landscape that Flagstaff has to offer.

Average June Wind Speed in Flagstaff

The chart displays monthly wind speed patterns in Flagstaff, 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.
JanFebMarAprMayJunJulAugSepOctNovDec2.43.03.33.63.32.9 m/s2.02.42.12.92.33.2
Data source: Flagstaff June wind data, generated using information from the Copernicus Climate Change Service.

How June Weather in Flagstaff Compares to Other Months

The weather in Flagstaff 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 Flagstaff and find detailed weather information for every month.

June and January present drastically different weather conditions. In June, temperatures range from a minimum of 3°C (37°F) to a maximum of 35°C (95°F), with an average temperature of 20°C (69°F). The month experiences low precipitation, totaling just 11 mm (0.4 in) over about 2 days, along with a comfortable humidity level of 35%. In stark contrast, January features much colder temperatures, with a minimum of -18°C (0°F), an average of 0°C (32°F), and a maximum of 14°C (58°F). This winter month sees significantly higher precipitation of 47 mm (1.8 in) spread over 7 days, coupled with high humidity at 80%. For a deeper dive into January's weather, you can visit Flagstaff weather in January.

June and February present stark contrasts in weather conditions. June boasts a comfortable range of temperatures with a minimum of 3°C (37°F), an average of 20°C (69°F), and a maximum reaching 35°C (95°F). The month is relatively dry, with only 11 mm (0.4 in) of precipitation over just 2 days and a low humidity level of 35%. In contrast, February experiences much colder temperatures, with a minimum of -19°C (-2°F), an average of 1°C (34°F), and a maximum of 17°C (63°F). This winter month is notably wetter, receiving 50 mm (2.0 in) of precipitation over 7 days and featuring high humidity at 83%. For a detailed look at February weather, check out Flagstaff weather in February.

The weather in March is markedly colder and wetter compared to June. In March, temperatures can drop as low as -14°C (8°F), with an average of just 4°C (39°F) and a maximum of 20°C (69°F). There is significantly more precipitation in March, totaling 61 mm (2.4 in) over 9 days, along with higher humidity levels at 72%. In contrast, June enjoys a much warmer climate, with temperatures ranging from a minimum of 3°C (37°F) to a maximum of 35°C (95°F), and only 11 mm (0.4 in) of precipitation over just 2 days, leading to a drier atmosphere with a humidity of 35%. For more information, you can check Flagstaff weather in March.

When comparing the weather in June and April, notable differences emerge. June typically experiences a wider temperature range, with minimums around 3°C (37°F) and maximums soaring to 35°C (95°F) and an average of 20°C (69°F). In contrast, April is cooler, featuring minimum temperatures as low as -7°C (20°F) and an average of just 9°C (49°F), while max temperatures reach 26°C (79°F). Additionally, April tends to be wetter, with 22 mm (0.9 in) of precipitation over 4 days, compared to June's drier conditions of just 11 mm (0.4 in) over 2 days. The humidity level is also noticeably higher in April at 63%, versus a much drier 35% in June. For more detailed insights, check Flagstaff weather in April.

When comparing the weather in June and May, it's clear that June is considerably warmer, with average temperatures rising from 13°C (57°F) in May to 20°C (69°F) in June. Additionally, June experiences a much higher maximum temperature of 35°C (95°F), compared to May's 30°C (86°F). Precipitation patterns also differ significantly; while May sees more rain with 32 mm (1.3 in) over 6 days, June has only 11 mm (0.4 in) of rain over just 2 days. Humidity is lower in June at 35%, down from 46% in May, contributing to a drier and hotter climate as summer approaches. For those interested in more details, you can check out Flagstaff weather in May.

June typically experiences a comfortable climate with average temperatures around 20°C (69°F) and relatively low precipitation, totaling only 11 mm (0.4 in) over just 2 days. The humidity is moderate at 35%, making it pleasant for outdoor activities. In contrast, July sees a slight increase in average temperature to 21°C (70°F), but experiences significant changes in precipitation, with 148 mm (5.8 in) spread over 16 days. Despite a higher minimum temperature of 9°C (48°F), the humidity remains comparable at 33%. For more detailed insights into July weather patterns, you can check Flagstaff weather in July.

In June, temperatures range from a chilly 3°C (37°F) at night to a warm 35°C (95°F) during the day, with an average of 20°C (69°F). The month is relatively dry, receiving just 11 mm (0.4 in) of precipitation over only two days and a lower humidity level of 35%. In contrast, August sees a slight increase in nighttime temperatures with a minimum of 9°C (48°F) while daytime highs reach a comfortable 33°C (92°F), maintaining the same average of 20°C (69°F). However, August is significantly wetter, with 69 mm (2.7 in) of rain spread over 13 days and a higher humidity level of 41%. For more details, check out Flagstaff weather in August.

June and September exhibit distinct weather patterns, reflecting the transition from the warmth of summer to the cooler beginnings of autumn. In June, temperatures are typically warmer, with an average of 20°C (69°F) and highs reaching up to 35°C (95°F), accompanied by relatively low humidity at 35%. In contrast, September experiences lower minimum temperatures, dipping to -1°C (31°F), while the average temperature is slightly cooler at 17°C (63°F), with highs around 33°C (91°F). Additionally, September sees increased precipitation, averaging 49 mm (1.9 in) over 7 days, compared to June’s mere 11 mm (0.4 in) over just 2 days. For more detailed insights, check out Flagstaff weather in September.

June and October in Flagstaff present strikingly different weather conditions. June experiences mild to hot temperatures, ranging from a low of 3°C (37°F) to a high of 35°C (95°F), alongside minimal precipitation of just 11 mm (0.4 in) over two days and lower humidity at 35%. In contrast, October sees cooler temperatures with a minimum of -8°C (17°F) and a maximum of 26°C (80°F), significantly increased precipitation of 34 mm (1.4 in) over five days, and higher humidity at 70%. This dramatic shift not only affects daily activities but also highlights the transition from the warmth of late spring to the crispness of fall. For more details on October conditions, check out Flagstaff weather in October.

June and November present stark contrasts in weather conditions. June experiences milder temperatures, with average highs reaching up to 35°C (95°F) and low humidity at 35%, making it warmer and sunnier with only about 11 mm (0.4 in) of precipitation over just two days. In contrast, November brings a chillier climate, with temperatures dropping to a minimum of -16°C (4°F) and an average of 6°C (42°F). The month is marked by higher humidity levels at 79% and increased precipitation, totaling 30 mm (1.2 in) over three days. For more detailed insights about the weather in November, you can visit Flagstaff weather in November.

June and December present a stark contrast in weather conditions. In June, temperatures range from a chilly minimum of 3°C (37°F) to a warm maximum of 35°C (95°F), with an average temperature of 20°C (69°F). The month experiences relatively low humidity at 35% and minimal precipitation, totaling just 11 mm (0.4 in) over 2 days. In contrast, December brings much colder temperatures, with a minimum of -20°C (-4°F) and a maximum of 16°C (62°F), averaging around 1°C (33°F). This month sees increased precipitation at 36 mm (1.4 in) over 6 days and significantly higher humidity at 82%. For more specific insights about the weather during December, you can visit Flagstaff weather in December.

Compare Flagstaff's Climate with Cities Worldwide

Conclusion: What to Expect From June Weather in Flagstaff

June in Flagstaff marks a delightful shift in weather, as temperatures warm up significantly, bringing an inviting ambiance perfect for outdoor activities. Compared to the cooler months, the average highs reach a balmy 20°C (69°F), while precipitation remains low, with only a couple of wet days throughout the month. The lower humidity levels also make June a comfortable time to explore the stunning landscapes surrounding the area. This relatively dry climate supports vibrant summer activities, making it a fantastic time to visit. For more nuanced insights into this lovely month and the year's unfolding weather patterns, check out Flagstaff Climate.