The climate of Normal
Normal, located in
Illinois, USA, is categorized as a Dfa zone according to the Köppen climate classification. This designation corresponds to a humid continental climate, marked by no dry season and hot summers. A thorough examination reveals a climate experiencing dynamic weather patterns over the twelve months.
Throughout the year, temperatures oscillate drastically, with
January holding the lowest average temperature of 18.9°F (-7.3°C) and
July offering the highest average temperatures of up to 80.8°F (27.1°C). Relative humidity ranges from 71% in
October to 85% in July, indicating a rather humid climate all year round. Visibility remains consistent year-round, with an average of 6 miles in most months, except in July and
August where it dips to 5 miles.
Normal has distinctly wet characteristics, receiving rainfall every month, with the quantity varying from 1.18" (30mm) in January to a maximum of 2.99" (76mm) in
May. The number of rainfall days fluctuates from 5.3 in
February to 17.8 in July. As expected for a humid continental climate, snowfall has a seasonal pattern, mainly from
December to
March, with the highest averages of 2.44" (62mm) in January and 1.65" (42mm) in December.
The daylight duration varies with the seasonal cycle, stretching from 9.7 hours in January to a maximum of 15 hours in
June. Correspondingly, the sunshine hours show an inverse pattern, with the least sunshine hours of 3.6 in January extending to a maximum of 9.7 in June.
The Best Time to Visit Normal
The most favorable time to plan a visit to
Normal would be during the late spring and early summer months, from
May to
June. During this period, the weather is mild and agreeable with average high temperatures rising from 72°F (22.2°C) to 79.3°F (26.3°C). The hours of daylight are also at their peak, averaging between 14.5 and 15 hours, providing ample sunlight for outdoor activities.
The Worst Time to Visit Normal
On the opposite side of the spectrum, the chilly winter months from
December to
February are less inviting for travelers. The temperature averages are at their lowest, with highs only reaching between 30.7°F (-0.7°C) and 35.6°F (2°C) and lows dipping between 18.9°F (-7.3°C) and 22.3°F (-5.4°C). Additionally, the daylight hours during winter are shortest, ranging from 9.3 to 10.7 hours only.
Spring Weather in Normal
Spring is a season of transition in
Normal, with temperatures warming up gradually from 48.7°F (9.3°C) in
March to 72°F (22.2°C) in
May. While rainfall sees a consistent increase from 1.65" (42mm) in March to a high of 2.99" (76mm) in May, snowfall completely disappears after March. The lengthening daylight from 12 hours in March to 14.5 hours in May makes it an agreeable season for outdoor enjoyment.
Summer Weather in Normal
Summers in
Normal come with typically hot temperatures, rising as high as 79.3°F (26.3°C) in
June and peaking at 80.8°F (27.1°C) in
July. Though rainfall persists, it slightly tones down to 2.64" (67mm) in June and 2.32" (59mm) in July. Daylight is generously available during this season, with up to 15 hours in June.
Autumn Weather in Normal
The autumn season sees a retreat in the high temperatures of summer, dipping from 75.7°F (24.3°C) in
September to 47.7°F (8.7°C) in
November. Rainfall also sees a decrease, from 1.89" (48mm) in
October down to 1.42" (36mm) in November. However, the daylight hours begin to decrease at this time, dropping from 11.1 hours in October down to 9.9 hours in November.
Winter Weather in Normal
Winter in
Normal is characterized by cold temperatures, averaging 30.7°F (-0.7°C) in
December and reaching the annual minimum of 18.9°F (-7.3°C) in
January. Snowfall is also at its height during this season, particularly in December and January with averages of 1.65" (42mm) and 2.44" (62mm), respectively. Daylight hours are at their shortest, sinking to 9.7 in December and remaining as low as 9.3 in January. The combination of cold weather, snowfall, and short daylight hours makes this season less favorable for travel and outdoor activities.
Weather in January
January in
Normal,
Illinois, USA, is characterized by a cold temperate climate. The month typically experiences extremes in temperature, from a high of 30.7°F (-0.7°C) to a low of 18.9°F (-7.3°C). Snowfall, while prevalent, is not excessive, with the city usually receiving no more than 2.44" (62mm).
Weather in January » Weather in February
Moving into
February, the weather gradually starts to transition. Temperatures inch upwards slightly, which hints at the advancing spring. However, it should be noted that February is still much colder than the following months.
Weather in February »Weather in March
As
March enters,
Normal begins to wave goodbye to the harsh winter. While still lower than spring and summer levels, the average temperature climbs significantly from the winter months. Sharp declines in snowfall rates are observed, cascading down to just 1.26" (32mm).
Weather in March »
Weather in April
By
April,
Normal has largely shrugged off the vestiges of winter. Weather patterns shift towards increased rainfall, reaching 2.4" (61mm), signaling spring's arrival. The city basks in the glory of noticeably longer daylight hours, typically up to roughly 13.3 hours.
Weather in April »Weather in May
May is a key player in
Normal's spring scene, guiding the city towards summer. As the city warms, temperatures rise considerably, supporting the growth of flora. A notable jump in rainfall to 2.99" (76mm) provides increased hydration for the blooming plant life.
Weather in May » Weather in June
Weather in
June marks the arrival of summer, a season cherished by many in
Normal. The city becomes a sun worshipper’s paradise, offering extended daylight hours and more hours of direct sunshine each day. Notably, June's climate is characterized by an increase in relative humidity, indicating the prevalence of warm and muggy conditions.
Weather in June »
Weather in July
July often stands as the peak of summer in
Normal, boasting the highest monthly average temperatures and humidity. A sharp decrease in wind speeds below 7mph (11.3km/h) offers relatively windless days, further amplifying the summer heat.
Weather in July » Weather in August
August brings the final full month of summer to
Normal. Despite some slight changes in certain weather parameters, the overall summer trend prevails, with high temperatures and intense sunlight. Relative humidity remains elevated from the hotter months, maintaining the typical muggy summer conditions.
Weather in August » Weather in September
September in
Normal spins the weather dial back towards milder conditions, heralding the onset of autumn. A notable dip in average temperatures signals the departure of the hotter summer months. Rainfall decreases to 1.5" (38mm), marking the gradual close of the summer season.
Weather in September »
Weather in October
Arriving in
October, the city of
Normal is well on its way into autumn. The change in season become noticeable with falling temperatures and increased cloud cover. October's climate tends to be much more stable than
September's, offering consistent meteorological conditions rather than sudden changes.
Weather in October »Weather in November
November shifts
Normal's weather pattern, nudging the city towards colder days. The city experiences a tangible drop in temperature, raising the anticipation of early snowfall. November marks the first reappearance of snow after summer, albeit a modest 1.18" (30mm).
Weather in November » Weather in December
December in
Normal signals the full swing of winter, as evidenced by plummeting temperatures and increased snowfall of 1.65" (42mm). This period is characterized by shorter days and longer nights, typical of the winter months.
Weather in December »