The climate of John Day
Situated in Oregon
, USA, John Day
is subject to a Dsb Köppen climate classification, referred to as a Humid continental climate with a dry warm summer. This climate pattern is known for variations in temperature and precipitation throughout the year.
Throughout the seasons, temperature indices fluctuate significantly in John Day. High temperatures range from 33.4°F in December
up to 81.7°F in the peak of July
, showcasing a considerable shift from cool to warm. Low-temperature readings also reflect this trend, with the coldest month, December, averaging a low of 19.6°F, while July reaches up to 48.4°F.
Apart from temperature, other weather elements hold significance. Relative humidity percentages oscillate from 42% during the hottest period to 85% in February
, indicating a moderate to high level of moisture in the atmosphere. The town sees the highest rainfall in December with about 2.24" spread across an average of 11.1 days, while the driest month July, registers a mere 0.24" over approximately 3.8 days.
Though snowfall is not a constant feature all year, it becomes a key part of the wintery weather conditions between December to February, with snowfall measures hitting a high of 10.31" in February. On the contrary, highest wind speeds are seen in March
registering 6.1mph and 6mph respectively with gusts reaching up to 10.5mph in November.
The best time to visit John Day
Considering the temperature and weather patterns, the optimal time to visit John Day
would be from late spring to early autumn, particularly between May
. During this time, high temperatures average between 61.3°F to 81°F, providing a comfortable climate for outdoor activities. The lower rainfall, particularly in July
at 0.24", contributes to fewer interruptions to outdoor plans.
The UV index is relatively moderate, primarily revolving around 5 in June
and dropping to 3 by September. Nonetheless, visitors should still take precautions to protect against sun damage during the peak sunshine hours.
The worst time to visit John Day
Winter months, specifically between December
, may not be the most suitable for travel due to harsh weather conditions. The average low temperatures during these months fall between 19.6°F to 22.5°F, providing a chilly environment that may not be welcoming to all. Snowfall measurements spike to 8.11" in December and 10.31" in February, which may lead to disruptions in traffic and outdoor activities.
Spring weather in John Day
Spring in John Day
sees warmer weather emerging as temperatures rise steadily from March
. Highs range from 50.4°F to 61.3°F and lows rise from 29.3°F to 36.1°F. The duration of daylight increases significantly during this season, offering up to 14.8 hours of daylight in May. While there is lesser rainfall in comparison to winter months, the area still experiences measurable precipitation with about 1.65" noted in May.
Summer weather in John Day
Summer is defined by dry, warm conditions in John Day
. Beginning in June
, temperatures continue to climb reaching a high of 81.7°F in July
and returning to 71.2°F by the end of August
. Rainfall measures minimally at 0.24" to 0.28" from June to August, indicating predominantly dry conditions.
Autumn weather in John Day
Autumn introduces cooler weather as temperatures start to decline from 71.2°F in September
to 43°F by November
. Rainfall becomes more consistent, with values of 1.42" noticed in November. Around this time, there is also a gradual decrease in daylight hours, reducing to about 9.6 hours per day by November.
Winter weather in John Day
Winter in John Day
is characterized by lower temperatures and significant snowfall. The coldest months, December
, record average high temperatures of 33.4°F and 35.2°F, and lows between 19.6°F to 22.1°F. Snowfall peaks in February
, with accumulations measuring about 10.31". Total daylight time during winter is relatively shorter compared to other seasons, making the days feel shorter.
Weather in January
in John Day
experiences the frigid bite of winter. A common characteristic during this period is the relative humidity of 84%, paired with high chances of snowfall, totaling to 8.11". It is noticeably colder than the following month, making it a perfect time for winter sports. Weather in January »
Weather in February
sees a slight increase in average temperatures compared to the preceding month. When it comes to snowfall, an increase is observed, with 10.31" of snow decorating the city. Consequently, drivers are recommended to exercise caution while navigating snowy roads. Weather in February »
Weather in March
There is a notable shift in weather patterns in March
, marking the transition from winter to spring. The month stands out because of its snowfall which lessens to 5.83", indicating a retreat of winter. The pressure tends to be stable during this period, contributing to more predictable weather. Weather in March »
Weather in April
conveys the full bloom of spring, with a considerable increase in temperatures from March
. The distinct feature about this month is the drastic reduction in snowfall to 1.69", a clear indication of winter's end. The city becomes livelier, with nature reclaiming its vivid colors lost during the winter. Weather in April »
Weather in May
carries the warmth of spring into John Day
, promising pleasant weather conditions. Rainfall measures 1.65", making it relatively drier compared to the preceding months. With the rise in temperature, outdoor activities become more popular among residents and tourists. Weather in May »
Weather in June
introduces the engaging summer season in John Day
. The most distinguished characteristics are the average low temperature of 41.2°F and the reduced rainfall, accounting for just 0.94". These conditions create a welcoming platform for camping and hiking. Weather in June »
Weather in July
sits at the peak of summer with record high temperatures not seen in previous months. The unique weather pattern is represented by the least amount of rainfall at 0.24". The heat encourages residents to bask in local swimming spots. Weather in July »
Weather in August
oversees a continuation of the dominant summer conditions but maintains almost the exact same temperature range as July
. What sets this month apart is the slight increase in rainfall to 0.28", a signal of the approaching end of summer. Weather in August »
Weather in September
With the commencement of September
, the weather starts to transition into fall. Although the temperature drop is nominal, the observable difference is the increase in rainfall to 0.55". The presence of early fall foliage starts to draw leaf-peepers. Weather in September »
Weather in October
brings more noticeable indicators of fall, with temperatures dipping further. The clear sign of transition is the greater amount of rainfall, measuring up to 1.3". This also marks the beginning of the rainy season in John Day
. Weather in October »
Weather in November
, the weather starts getting colder, marking the beginnings of winter. The significant change this month is the revival of snowfall, measuring 4.02". The landscape of John Day
gradually white-washes, making it a serene sight to behold. Weather in November »
Weather in December
in John Day
is characterized by a full-fledged winter. The weather element that makes this month exceptional is the most pronounced quantity of snowfall at 8.31". The weather remains cold, often with freezing mornings and nights. Weather in December »