The climate of Shelley
Shelley,
Idaho, USA, situated in a mid-latitude steppe, is categorized under the Köppen climate classification as BSk. This classification identifies a semi-arid climate with a clear distinction between the seasons. A comprehensive overview of the climatological data indicates a wide variation in climate conditions throughout the year.
The temperature in Shelley shifts between a high of 85.3°F (29.6°C) in
July and a low of 14.7°F (-9.6°C) in
January. The weather is typically hot in summer and quite cold in winter. There are fluctuations in rainfall with January and
November receiving 1.06" (27mm) while lowest precipitation is reported in July with a measure of 0.51" (13mm). The average number of rainy days range from 6.1 in January to 15.9 in
May.
Snowfall is concentrated in the winter months with the highest at 7.44" (189mm) in January and virtually non-existent from
June to
September. The annual average humidity relative scales from a high of 90% in January, descending to a low of 36% in July and
August. Levels of sunlight vary from 4.8 hours per day in January to an apex of 11.9 hours in July.
The best time to visit Shelley
The most favorable time to visit
Shelley is during the summer months, specifically from
June to
August, when the weather is warm and conducive for outdoor explorations. With temperatures extending from 73.8°F (23.2°C) to 85.3°F (29.6°C) and daily sunlight hours peaking at 15.4 hours, visitors have ample opportunity to enjoy local attractions. Relative humidity averages at a comfortable 48% and rainfall is at its lowest, making it the best season for outdoor activities.
The worst time to visit Shelley
The least suitable time to visit
Shelley would be the winter period, specifically from
December to
February. Throughout this season, temperatures can be unbearably low, dropping to as low as 14.7°F (-9.6°C) in
January. Moreover, the probability of snowfall is quite high, reaching 7.44" (189mm) in January. Therefore, the cold winter months present unfavorable conditions for tourists keen on outdoor activities.
Spring weather in Shelley
Spring in
Shelley, extending from
March to
May, witnesses a gradual rise in temperatures ranging from 42.1°F (5.6°C) to 63°F (17.2°C). Rainfall is at a modest level with figures of 1.3" (33mm) in March to 1.57" (40mm) in May. The average number of daylight hours trends upwards, reaching a maximum of 14.7 hours by the end of the period.
Summer weather in Shelley
Summer, from
June to
August, is the warmest period in
Shelley. Temperatures inch up to 73.8°F (23.2°C) in June and peak at 85.3°F (29.6°C) in
July. Rainfall dwindles to 0.51" (13mm) in July before making a slight rebound to 0.83" (21mm) in August. Sunlight is abundant, treating Shelley to an average of over 15 hours of daylight each day.
Autumn weather in Shelley
The transition from summer to winter, namely the autumn months of
September to
November, in
Shelley comes with a gradual decrease in temperatures, daylight hours, and an increase in the amount of precipitation. Temperatures can range from 72.9°F (22.7°C) in September to 41°F (5°C) by November. Rainfall ranges from 1.06" (27mm) in September to 0.75" (19mm) in November.
Winter weather in Shelley
During the winter period which lasts from
December to
February,
Shelley is predominantly cold. Temperatures plummet to lows between 27.9°F (-2.3°C) and 14.7°F (-9.6°C) and snowfall is at its highest, with a peak of 7.44" (189mm) in December. The sunlight hours reduce to just above 9 per day, making this the shortest day period of the year. The humidity rises back up to 86% by February, while wind speeds hover between 6.2mph (10km/h) and 8.9mph (14.3km/h), potentially making conditions feel even colder.
Weather in January
In
Shelley,
Idaho,
January is a winter month with dominant wintry weather features. The temperatures are cold and snowfall is frequent, with an impressive 7.44" (189mm) of snow falling throughout the month. While the daytime temperatures gently creep up from
December, night temperatures drop, often feeling frosty.
Weather in January »Weather in February
As
Shelley,
Idaho moves into
February, winter remains well entrenched, but there are subtle indications of the upcoming spring. Temperatures rise marginally and the volume of snowfall reduces to 5.28" (134mm), even though the number of snowfall days is still pretty high.
Weather in February »Weather in March
In
March, the weather in
Shelley,
Idaho is caught between winter's chill and spring's mild warmth. The most noticeable change is in the rise in temperatures, with the high reaching 42.1°F (5.6°C). Despite the cooler nights, the air tends to become less dense as the relative humidity falls to 76%.
Weather in March »
Weather in April
April in
Shelley,
Idaho brings a definitive break from winter, with more spring-like weather patterns. A steady rise in both day and night temperatures underlines the transition into the warmer part of the year. The disappearance of snowfall signals the end of winter, giving way to increased rainfall - a consistent feature of spring.
Weather in April » Weather in May
May’s weather in
Shelley,
Idaho is typified by signs of early summer. The temperatures continue to rise, and rainfall becomes more prevalent. The warmth is further emphasized by the increased daylight hours reaching 14.7 hours. Delightfully, the heavy winter clouds start to disperse, and the city is frequently bathed in sunlight almost throughout the day.
Weather in May » Weather in June
The arrival of
June brings summer's delight to
Shelley,
Idaho as the weather experiences a warm transformation. Temperatures now reach a sweltering high of 73.8°F (23.2°C). The blend of low humidity, increased daylight and sunshine hours serve as perfect conditions for outdoor activities.
Weather in June »
Weather in July
July is peak summer in
Shelley,
Idaho, characterized by sizzling temperatures and long, sunny days. Interestingly, the city experiences its highest temperature of the year, topping at 85.3°F (29.6°C). A significant dip in humidity is noticed during this month, making the heat more bearable.
Weather in July » Weather in August
In
August,
Shelley,
Idaho continues to relish the summer heat, though the temperature subtly drops, hinting at the coming autumn. While the rainfall marginally increases from
July, the total sunlight hours start to decrease. Daylight hours also begin to drop, yet the city still enjoys a fair amount of sunshine.
Weather in August »Weather in September
Shelley,
Idaho in
September is a blend of lingering summer heat and incoming autumn coolness. September witnesses a more significant drop in temperature, but the city experiences a rise in rainfall after the drier summer months.
Weather in September »
Weather in October
As
October stride in, slushy autumn manifests itself in
Shelley,
Idaho. The weather turns markedly cooler, with temperatures dropping down noticeably from
September's highs. An increase in rainfall adds to the atmosphere of a typical cool, wet autumn.
Weather in October »Weather in November
November in
Shelley,
Idaho marks the start of winter season, as the weather makes a cold turn. There is a significant drop in temperatures as the month registers a chilling low of 26.2°F (-3.2°C). The rainfall further increases making the days damp and a bit gloomy.
Weather in November » Weather in December
December brings the full force of winter to
Shelley,
Idaho. The fall in temperatures continues, with the mercury often plummeting to chilling lows. Snowfall makes a grand reappearance after a long hiatus, with 6.5" (165mm) settling throughout the city in December.
Weather in December »