Climate and monthly weather forecastClinton, IA
Climate and monthly weather forecast
The climate of Clinton
Clinton, a city found in the state of Iowa, USA, experiences a Humid continental climate characterized by significant variations in temperature and a fair share of rainfall throughout the year. This blend of weather patterns places Clinton in the Dfa category according to the Köppen climate classification. A prominent feature in this climate zone is the lack of a dry season coupled with hot summers.Temperature fluctuates between a maximum average of 80.2°F (26.8°C) observed in July to a minimum average of 14.5°F (-9.7°C) in January. Another characteristic climate feature is the relative atmospheric humidity, remaining high throughout the year. It ranges from 73% in October to a peak of 85% in January. The wind, too, is a constant companion in Clinton, blowing at an average speed of 6.5mph (10.5km/h) to 10.4mph (16.7km/h) from August to April.
Rain is a regular visitor in Clinton, with rainfall recorded in every month. May witnesses the highest rainfall of 3.19" (81mm), and the driest month, December, still gets a decent 0.87 of an inch. Snowfall decorates the city in the colder months, from November to April, with the highest accumulation of 2.8" (71mm) occurring in January.
The Best Time to Visit Clinton
Based on the climatological data, the summer months, from June to August, can be considered an ideal time for a visit to Clinton. During this period, the city basks under an average of 15 hours of daylight coupled with an average of nearly 10 hours of sunshine every day. In addition, maximum temperatures hover around a warm yet comfortable 80°F (26.7°C), offering a delightful contrast to the chill of winter.Rainfall decreases to about 2" (51mm) during these months, less than May's peak rainfall. The relative humidity is at a moderate level, and the average wind speed falls, making it more conducive for outdoor activities.
The Worst Time to Visit Clinton
If there were a less favorable time to visit Clinton, it would be the winter months, from November to February. During this period, temperatures drop sharply, with January boasting an average low of 14.5°F (-9.7°C).The daylight hours are significantly reduced, averaging between 9 to 10 hours, while sunshine hours are at their minimum for the year at 4 hours a day. The strong winds blowing at an average speed of 10mph (16.1km/h), coupled with snowfall in these months, might make outdoor activities less enjoyable.
Spring Weather in Clinton
In Clinton, the spring season from March to May witnesses temperatures gradually climb from an average low of 30.9°F (-0.6°C) to an average high of 69.4°F (20.8°C). The city progressively sheds its winter chill to welcome warmer days.Rainfall takes a leap from an average of 1.22" (31mm) in March to a high of 3.19" (81mm) in May. With the increase in temperatures, the city experiences longer daylight hours, going from 12 in March to around 14.6 in May, making it a bright start to the warmer half of the year.
Summer Weather in Clinton
In the summer months from June to August, temperatures in Clinton reach their zenith with averages of 78.4°F (25.8°C), 80.2°F (26.8°C), and 79.9°F (26.6°C) respectively. The peak temperature of 80.2°F (26.8°C) is noted in July.Rainfall begins to recede from 2.44" (62mm) in June to 1.26" (32mm) in August, highlighting a drier trend. Daylight is at its all-year high, touching 15.2 hours in June, and abundant sunshine dominates, ensuring bright and sunny summers.
Autumn Weather in Clinton
Autumn, stretching from September to November, introduces a gradual decline in temperatures, from an average high of 74.3°F (23.5°C) in September to an average high of 45.9°F (7.7°C) in November.Rainfall ranges from 1.54" (39mm) in September to 1.3" (33mm) in November, while daylight hours reduce from 12.5 in September to 9.8 in November. This shift in conditions marks the transition from summer to the colder winter months in Clinton.
Winter Weather in Clinton
Winter ushers in the coldest temperatures of the year in Clinton from December to February. Plunging to an average low of 14.5°F (-9.7°C) in January, the city experiences a chilly and snowy season.Snowfall is most frequent during this season, reaching as much as 2.8" (71mm) in January. Daylight hovers between 9 to 10 hours, while the average sunshine hours decrease to around 4 to 5. Despite the chill and shorter days, the winter season in Clinton paints a serene and frosty landscape.
Weather in January
January weather in Clinton, Iowa, typically presents a true Midwestern winter experience. The chill of the season kicks in full gear with the coldest temperatures reaching as low as 14.5°F (-9.7°C). This stands in contrast to the relatively milder climate of the ensuing months. Weather in January »Weather in February
February carries forward the frosty essence of its predecessor, but with a notable rise in temperatures. The lowest temperature in February jumps to 18.3°F (-7.6°C) from January's chillier 14.5°F (-9.7°C). This slight increase signals the impending arrival of spring while the frequent snow showers remind residents of the lingering winter. Weather in February »Weather in March
The transition from winter to spring becomes pronounced in March. There is a significant rise in the mercury with temperatures now reaching as high as 45.9°F (7.7°C). Residents bid farewell to constant snow showers as they become infrequent during this month, heralding the onset of spring. Weather in March »Weather in April
April's climate in Clinton, Iowa, is characterized by the full bloom of spring. The weather registers a noticeable leap in temperatures with highs rising to 58.1°F (14.5°C). Consequently, the number of daylight hours also sees a considerable increase. Weather in April »Weather in May
May signals the advent of early summer in Clinton, Iowa, with an escalation in temperatures apparent. The weather turns significantly warmer with highs climbing to 69.4°F (20.8°C). This month records the highest average rainfall, turning the cityscape verdant and lush. Weather in May »Weather in June
June marks the official onset of the summer season in Clinton. The city basks in the day's heat, experiencing an average high temperature of 78.4°F (25.8°C). Longer daylight hours become the norm, leading to an influx of outdoor activities. Weather in June »Weather in July
July brings the pinnacle of the summer season in Clinton, Iowa. Temperatures peak, with the month's highest temperature recorded at an average of 80.2°F (26.8°C). With the mercury soaring high, residents often seek respite in Clinton's water bodies. Weather in July »Weather in August
August continues the summer trend, with near-identical weather conditions as July. Highs remain steadfast at around 79.9°F (26.6°C), making it one of the warmest months in Clinton, Iowa. August proves a favorite month for water sports enthusiasts as the water temperature remains pleasingly warm. Weather in August »Weather in September
September encounters the beginning of the autumnal shift in Clinton. The high temperatures of summer gradually decline, with average highs reducing to 74.3°F (23.5°C). With the leaves commencing to change their hues, September ushers in the spellbinding pallet of fall colors. Weather in September »Weather in October
October brings about a majestic autumnal spectacle in Clinton, Iowa. As temperatures hover around 60.6°F (15.9°C), the cooler temperatures signify a retreat from the blazing summer heat. The city transforms into an artist's palette, boasting a cornucopia of vibrant fall colors. Weather in October »Weather in November
November marks the poignant end of fall and the beginnings of winter in Clinton. The high temperature drops down to an average of 45.9°F (7.7°C). Outdoor activities take a back seat as residents start bundling up in anticipation of the approaching winter. Weather in November »Weather in December
December embraces the full swing of winter in Clinton. Temperatures dip down significantly, with the mercury dropping to as low as 22.8°F (-5.1°C). The probability of snowfall increases, bestowing a quintessential winter charm over the city. Weather in December »Updated: Aug 3, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Clinton's coldest month, January, generally records average temperatures ranging from a high of 26.8°F (-2.9°C) to a low of 14.5°F (-9.7°C).
January is the most humid month in Clinton, with an average relative humidity of 85%.
The months with the least rainfall are January and February Rain falls for 4.3 days and accumulates 0.79" (20mm) of rain.
In Clinton, during the entire year, the rain falls for 126.2 days and collects up to 19.37" (492mm) of precipitation.
Months with snowfall are January through April, October through December.
The month with the most snowfall is January, when snow falls for 9.3 days and typically aggregates up to 2.8" (71mm) of snow.
Throughout the year, in Clinton, there are 33.3 snowfall days, and 8.98" (228mm) of snow is accumulated.
The month with the least sunshine is January, with an average of 3.9h of sunshine.
January is the month with the lowest UV index, with an average maximum UV index of 1.
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from CST to CDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from CDT to CST.
The month with the most rainfall is May, when the rain falls for 16.9 days and typically aggregates up to 3.19" (81mm) of precipitation.
May through September are months without snowfall.
The month with the longest days is June, with an average of 15h and 12min of daylight.
Clinton's warmest month, July, registers temperatures that range from a high of 80.2°F (26.8°C) to a low of 63.9°F (17.7°C).
July has the most sunshine of the year, with an average of 9.9h of sunshine.
With an average maximum UV index of 6, July is the month with the highest UV index.
With an average relative humidity of 73%, October is the least humid month.
With an average of 9h and 12min of daylight, December has the shortest days of the year.
Average temperature
Clinton, IA
The warmest month (with the highest average high temperature) is July (80.2°F).
The month with the lowest average high temperature is January (26.8°F).
The month with the highest average low temperature is July (63.9°F).
The coldest month (with the lowest average low temperature) is January (14.5°F).
Average pressure
Clinton, IA
- Average pressure in January:
30.13"Hg - Average pressure in February:
30.11"Hg - Average pressure in March:
30.08"Hg - Average pressure in April:
29.94"Hg - Average pressure in May:
29.95"Hg - Average pressure in June:
29.91"Hg
- Average pressure in July:
29.96"Hg - Average pressure in August:
29.97"Hg - Average pressure in September:
30.03"Hg - Average pressure in October:
30"Hg - Average pressure in November:
30.09"Hg - Average pressure in December:
30.1"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed
Clinton, IA
- Average wind speed in January:
10mph - Average wind speed in February:
10.1mph - Average wind speed in March:
10mph - Average wind speed in April:
10.4mph - Average wind speed in May:
8.8mph - Average wind speed in June:
7.6mph
- Average wind speed in July:
6.6mph - Average wind speed in August:
6.5mph - Average wind speed in September:
7.6mph - Average wind speed in October:
9.3mph - Average wind speed in November:
10mph - Average wind speed in December:
9.6mph
The windiest month (with the highest average wind speed) is April (10.4mph).
The calmest month (with the lowest average wind speed) is August (6.5mph).
Average humidity
Clinton, IA
The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is October (73%).
Average rainfall
Clinton, IA
- Average rainfall in January:
0.79" - Average rainfall in February:
0.79" - Average rainfall in March:
1.22" - Average rainfall in April:
2.13" - Average rainfall in May:
3.19" - Average rainfall in June:
2.44"
- Average rainfall in July:
2.05" - Average rainfall in August:
1.26" - Average rainfall in September:
1.54" - Average rainfall in October:
1.81" - Average rainfall in November:
1.3" - Average rainfall in December:
0.87"
The wettest month (with the highest rainfall) is May (3.19").
The driest months (with the least rainfall) are January and February (0.79").
Average rainfall days
Clinton, IA
- Average rainfall days in January:
4.3 days - Average rainfall days in February:
4.8 days - Average rainfall days in March:
10.8 days - Average rainfall days in April:
14.8 days - Average rainfall days in May:
16.9 days - Average rainfall days in June:
15.8 days
- Average rainfall days in July:
13.9 days - Average rainfall days in August:
11.3 days - Average rainfall days in September:
9.9 days - Average rainfall days in October:
10.6 days - Average rainfall days in November:
7.2 days - Average rainfall days in December:
5.9 days
The month with the highest number of rainy days is May (16.9 days).
The month with the least rainy days is January (4.3 days).
Average snowfall
Clinton, IA
The month with the highest snowfall is January (2.8").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days
Clinton, IA
- Average snowfall days in January:
9.3 days - Average snowfall days in February:
8.3 days - Average snowfall days in March:
4.8 days - Average snowfall days in April:
1.1 days - Average snowfall days in May:
0 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0 days - Average snowfall days in October:
0.5 days - Average snowfall days in November:
2.6 days - Average snowfall days in December:
6.7 days
The month with the highest number of snowfall days is January (9.3 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight / Average sunshine
Clinton, IA
- Average daylight in January:
9h and 36min - Average daylight in February:
10h and 36min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 24min - Average daylight in May:
14h and 36min - Average daylight in June:
15h and 12min
- Average daylight in July:
14h and 54min - Average daylight in August:
13h and 48min - Average daylight in September:
12h and 30min - Average daylight in October:
11h and 6min - Average daylight in November:
9h and 48min - Average daylight in December:
9h and 12min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in January:
3h and 54min - Average sunshine in February:
4h and 6min - Average sunshine in March:
6h and 24min - Average sunshine in April:
7h and 42min - Average sunshine in May:
8h and 42min - Average sunshine in June:
9h and 42min
- Average sunshine in July:
9h and 54min - Average sunshine in August:
9h and 48min - Average sunshine in September:
9h and 12min - Average sunshine in October:
5h and 24min - Average sunshine in November:
5h and 18min - Average sunshine in December:
4h and 12min
The month with the most sunshine is July (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days
Clinton, IA
- Average sunshine days in January:
17.7 days - Average sunshine days in February:
16.3 days - Average sunshine days in March:
16.5 days - Average sunshine days in April:
13.1 days - Average sunshine days in May:
11.8 days - Average sunshine days in June:
12.1 days
- Average sunshine days in July:
13.6 days - Average sunshine days in August:
17.6 days - Average sunshine days in September:
18.3 days - Average sunshine days in October:
18.8 days - Average sunshine days in November:
19.3 days - Average sunshine days in December:
18.9 days
The month with the most sunshine days is November (19.3 days).
The month with the least sunshine days is May (11.8 days).
Average UV index
Clinton, IA
The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is January (UV index 1).
Average cloud cover
Clinton, IA
The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is September (Cloud cover 30).
Average visibility
Clinton, IA
The months with the highest visibility are January, February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are July and August (5mi).
