Climate and monthly weather forecastFort Atkinson, WI
Climate and monthly weather forecast
The climate of Fort Atkinson
Geographically placed in a North American continental climate region, Fort Atkinson in Wisconsin, USA, experiences a variety of weather conditions that change as the seasons do. The city falls under the Köppen climate classification Dfa, indicative of a humid continental climate with no dry season and hot summers.Analyzing the provided climatological data, it is observed that the city has a definitive seasonality with temperatures reaching their pinnacle in the months of July at 79.3°F (26.3°C), while the coldest temperatures are recorded in January, averaging 12°F (-11.1°C). Significant fluctuations manifest in the average rainfall and snowfall throughout the year, with July witnessing rainfall levels of 3.27" (83mm) and January seeing snowfall levels of 5.24" (133mm).
Humidity remains relatively high throughout the year, recording a peak of 88% in January. The city basks in a generous amount of sunshine, particularly from May to September when the sunshine hours per day exceed 8.5, while the relative daylight hours peak in June at 15.3 hours per day. The presence of humidity combined with high temperatures can occasionally give rise to thunderstorms, particularly during the summer months.
The best time to visit Fort Atkinson
As optimal weather conditions often dictate an enjoyable exploration experience, the months from May to September prove to be the ideal time to visit Fort Atkinson. Summertime ensures warm temperatures, averaging between 66.6°F (19.2°C) to 79.3°F (26.3°C), and an abundance of daylight, exceeding 14.7 hours per day. Notably, maximum rainfall occurs in June, though at 3.78" (96mm) it still promises many a dry day to explore the city's offerings.The worst time to visit Fort Atkinson
The colder months from November through March are perhaps unfavourable times for visiting Fort Atkinson. The city experiences lower temperatures, dipping to 12°F (-11.1°C) in January, and continuous snowfall, rising to 5.24" (133mm) in January, which might not be conducive for outdoor activities. Daylight is scarce during these months with sunlight hours touching a low of 3.4 in December.Spring weather in Fort Atkinson
Spring in Fort Atkinson begins with moderate rainfall, which significantly increases from 1.42" (36mm) in February to 3.11" (79mm) by the end of April. The season ushers in a gradual warming of temperatures, staring from an average low of 14.9°F (-9.5°C) in February to a high of 66.6°F (19.2°C) in May. The amount of daylight during spring increases from 10.6 hours in February to 14.7 hours in May, promoting longer days for locals and visitors alike to enjoy outdoor pursuits.Summer weather in Fort Atkinson
Summer in Fort Atkinson is characterized by warm temperatures and high humidity. June is the wettest month with rainfall touching 3.78" (96mm), adding a degree of unpredictability to the weather. The summer months are also the brightest, with sunshine hours fluctuating between 8.5 to 9.8 per day.Autumn weather in Fort Atkinson
As Fort Atkinson transitions into autumn, rainfall decreases with September witnessing 2.13" (54mm). The temperatures begin to cool with averages dropping from a high of 71.8°F (22.1°C) in September to a low of 30.4°F (-0.9°C) in November. Daylight hours decrease remarkably from 12.5 hours in September to 9.7 hours in November, marking shorter days and longer nights.Winter weather in Fort Atkinson
The winter season in Fort Atkinson is rather cold with temperatures dropping to a low of 12°F (-11.1°C) in January. Snowfall during these months is significant, hitting a peak of 5.24" (133mm) in January. January also witnesses the highest relative humidity at 88%, which can intensify the perceived cold. Sun shines for a shorter time, limited to around 3.4 hours per day in December, thus creating brief days and much longer nights.Weather in January
Starting the year, Fort Atkinson finds itself in the grip of winter with the chilly air encapsulating the city. The cold temperatures make rain sparse, turning water droplets into snowflakes that blanket the city. Residents encounter cold fronts with the highest temperature reaching 24.3°F (-4.3°C) and the lowest at 12°F (-11.1°C). Weather in January »Weather in February
Maintaining the wintery mood, February presents similar weather patterns as January, with slight changes. The city warms up marginally, hinting at the approaching spring. An increase in snowfall is noted, reaching 5.39" (137mm) throughout the month. Weather in February »Weather in March
As March rolls in, Fort Atkinson rides the cusp of spring with a notable increase in average temperatures. The climate shifts noticeably from the preceding month's consistently cold temperatures. The city experiences less snowfall, a drastic reduction to 2.4" (61mm). Weather in March »Weather in April
April brings the quintessential spring weather to Fort Atkinson, leaving behind the chill of March. Rain showers become more frequent, evoking the age-old saying, "April showers bring May flowers." April sees the largest average rainfall of the year, recording 3.11" (79mm). Weather in April »Weather in May
May greets Fort Atkinson with an unmistakable warmth, opening the doors to summer. As the month progresses, the days grow longer, bringing more sunshine to the city. A marked reduction in snowfall to 0.08" (2mm) makes the city more vibrant. Weather in May »Weather in June
June in Fort Atkinson means the arrival of summer. The city relishes the most daylight in the year, with the sun beaming down for more than 15 hours per day. Rainfall decreases from May to 3.27" (83mm). The weather gradually shifts from its semi-warm state of May to full-blown summer. Weather in June »Weather in July
Fort Atkinson experiences peak summer temperatures in July. The city revels in the maximum temperature of the year hitting 79.3°F (26.3°C). Humidity climbs up in this month, affecting the overall feel of the weather. Despite being the warmest month, the frequent rainfall maintains the green scenery of the city. Weather in July »Weather in August
August carries on the summer trend from July, with similar weather conditions experienced in Fort Atkinson. The high summer temperature slightly decreases, but the city continues to feel the heat. Rainfall decreases from July to 2.8" (71mm). Weather in August »Weather in September
As September sets in, Fort Atkinson transitions from summer to fall, and the temperatures become milder. The change in season is palpable as the average maximum temperature drops to 71.8°F (22.1°C). Decreasing daylight hours and a further drop in rainfall to 2.13" (54mm) marks the progressive shift to autumn. Weather in September »Weather in October
October brings a crisp coolness to Fort Atkinson, clearly signaling the arrival of fall. The city witnesses a further reduction in temperatures. Snowfall makes a surprise comeback, albeit as a small amount of 0.59" (15mm). Even though October is a dry month, damp weather is quite common. Weather in October »Weather in November
In November, Fort Atkinson gears up for winter as autumn recedes. The month witnesses the return of snowfall, reaching 2.52" (64mm). The city experiences a dip in temperature, with the highest drop to 43.7°F (6.5°C), reminding residents of the upcoming wintertime. Weather in November »Weather in December
Finally, in December, Fort Atkinson embraces winter wholeheartedly again. Snowfall, reaching 3.94" (100mm), replaces the rainfall entirely. The temperature drops significantly from November, with the lowest recorded at 20.7°F (-6.3°C). Weather in December »Updated: Jul 8, 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
In Fort Atkinson, January is known for its average lowest temperatures, reaching a high of 24.3°F (-4.3°C) and a low of 12°F (-11.1°C).
With an average relative humidity of 88%, January is the most humid month.
January and February are months with the least rain in Fort Atkinson when the rain falls for 5.2 days and typically aggregates up to 1.42" (36mm) of rain.
Throughout the year, there are 149.4 rainfall days, and 28.82" (732mm) of precipitation is accumulated.
Months with snowfall are January through May, October through December.
Throughout the year, there are 58 snowfall days, and 21.85" (555mm) of snow is accumulated.
January has the least sunshine of the year in Fort Atkinson, with an average of 3.4h of sunshine.
The months with the lowest UV index are January and December, with an average maximum UV index of 1.
February is the month with the most snowfall. Snow falls for 13.4 days and accumulates 5.39" (137mm) of snow.
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 least humid month is April, with an average relative humidity of 76%.
June is the month with the most rainfall. Rain falls for 18 days and accumulates 3.78" (96mm) of precipitation.
In Fort Atkinson, snow does not fall in June through September.
With an average of 15h and 18min of daylight, June has the longest days of the year.
With an average maximum UV index of 6, June is the month with the highest UV index.
July brings the highest temperatures, with an average high of 79.3°F (26.3°C) and an average low of 61.5°F (16.4°C).
The month with the most sunshine is July, with an average of 9.8h of sunshine.
December has the shortest days of the year, with an average of 9h and 6min of daylight.
Average temperature
Fort Atkinson, WI
The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (24.3°F).
The month with the highest average low temperature is July (61.5°F).
The coldest month (with the lowest average low temperature) is January (12°F).
Average pressure
Fort Atkinson, WI
- Average pressure in January:
30.11"Hg - Average pressure in February:
30.1"Hg - Average pressure in March:
30.09"Hg - Average pressure in April:
29.96"Hg - Average pressure in May:
29.96"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:
29.99"Hg - Average pressure in November:
30.08"Hg - Average pressure in December:
30.09"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed
Fort Atkinson, WI
- Average wind speed in January:
9.6mph - Average wind speed in February:
9.7mph - Average wind speed in March:
9.4mph - Average wind speed in April:
9.9mph - Average wind speed in May:
8.5mph - Average wind speed in June:
7.5mph
- Average wind speed in July:
6.5mph - Average wind speed in August:
6.4mph - Average wind speed in September:
7.3mph - Average wind speed in October:
8.7mph - Average wind speed in November:
9.3mph - Average wind speed in December:
9.1mph
The windiest month (with the highest average wind speed) is April (9.9mph).
The calmest month (with the lowest average wind speed) is August (6.4mph).
Average humidity
Fort Atkinson, WI
The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is April (76%).
Average rainfall
Fort Atkinson, WI
- Average rainfall in January:
1.42" - Average rainfall in February:
1.42" - Average rainfall in March:
1.77" - Average rainfall in April:
3.11" - Average rainfall in May:
3.27" - Average rainfall in June:
3.78"
The wettest month (with the highest rainfall) is June (3.78").
The driest months (with the least rainfall) are January and February (1.42").
Average rainfall days
Fort Atkinson, WI
- Average rainfall days in January:
5.2 days - Average rainfall days in February:
5 days - Average rainfall days in March:
11.1 days - Average rainfall days in April:
15.8 days - Average rainfall days in May:
19.6 days - Average rainfall days in June:
18 days
- Average rainfall days in July:
17.4 days - Average rainfall days in August:
15.6 days - Average rainfall days in September:
13.4 days - Average rainfall days in October:
12.6 days - Average rainfall days in November:
8.8 days - Average rainfall days in December:
6.9 days
The month with the highest number of rainy days is May (19.6 days).
The month with the least rainy days is February (5 days).
Average snowfall
Fort Atkinson, WI
- Average snowfall in January:
5.24" - Average snowfall in February:
5.39" - Average snowfall in March:
2.4" - Average snowfall in April:
1.69" - Average snowfall in May:
0.08" - Average snowfall in June:
0"
The month with the highest snowfall is February (5.39").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Fort Atkinson, WI
- Average snowfall days in January:
15.4 days - Average snowfall days in February:
13.4 days - Average snowfall days in March:
7.2 days - Average snowfall days in April:
2.9 days - Average snowfall days in May:
0.3 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:
0.9 days - Average snowfall days in November:
5.3 days - Average snowfall days in December:
12.6 days
The month with the highest number of snowfall days is January (15.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Fort Atkinson, WI
- Average daylight in January:
9h and 24min - 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 42min - Average daylight in June:
15h and 18min
- Average daylight in July:
15h and 0min - Average daylight in August:
13h and 54min - Average daylight in September:
12h and 30min - Average daylight in October:
11h and 0min - Average daylight in November:
9h and 42min - Average daylight in December:
9h and 6min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in January:
3h and 24min - Average sunshine in February:
3h and 36min - Average sunshine in March:
5h and 48min - Average sunshine in April:
7h and 18min - Average sunshine in May:
8h and 30min - Average sunshine in June:
9h and 18min
- Average sunshine in July:
9h and 48min - Average sunshine in August:
9h and 42min - Average sunshine in September:
8h and 36min - Average sunshine in October:
5h and 18min - Average sunshine in November:
5h and 0min - Average sunshine in December:
3h and 48min
The month with the most sunshine is July (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 24min).
Average sunshine days
Fort Atkinson, WI
- Average sunshine days in January:
12.5 days - Average sunshine days in February:
10.8 days - Average sunshine days in March:
14.3 days - Average sunshine days in April:
10.9 days - Average sunshine days in May:
9.8 days - Average sunshine days in June:
9.8 days
- Average sunshine days in July:
10 days - Average sunshine days in August:
12.3 days - Average sunshine days in September:
14.4 days - Average sunshine days in October:
14.7 days - Average sunshine days in November:
16.1 days - Average sunshine days in December:
14.3 days
The month with the most sunshine days is November (16.1 days).
The months with the least sunshine days are May and June (9.8 days).
Average UV index
Fort Atkinson, WI
The month with the highest UV index is June (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover
Fort Atkinson, WI
The month with the most cloud cover is January (Cloud cover 65).
The month with the least cloud cover is August (Cloud cover 34).
Average visibility
Fort Atkinson, WI
The months with the highest visibility are March, April, May, June, October and November (6mi).
The months with the lowest visibility are January, February, July, August, September and December (5mi).
