Climate and monthly weather forecastConneaut, OH
Climate and monthly weather forecast
The climate of Conneaut
Conneaut, Ohio, USA experiences a Köppen climate classification of Dfb, meaning it is predominantly a humid continental climate with no dry season and a warm summer. Geographically located in the Great Lakes region, the city is influenced by the temperature and winds off Lake Erie.A review of the climatological data reveals several patterns across the weather parameters throughout the year. The average high temperature gradually increases from 30.9°F (-0.6°C) in January to a peak of 75.6°F (24.2°C) in July, then descends back to 37.6°F (3.1°C) by December. The average monthly low follows a similar pattern, starting at 22.5°F (-5.3°C) in January and peaking at 66.4°F (19.1°C) from July to August before falling back to 31.1°F (-0.5°C) in December.
Rainfall ranges between a minimum of 2.28" (58mm) in February and maximum of 4.25" (108mm) in June. In terms of snow, January and February see the most accumulation with 3.98" (101mm) and 4.84" (123mm), respectively. An interesting weather feature is the relatively high humidity levels throughout the year, remaining in the region of between 77% and 86%, slightly higher during winter and slightly lower during summer.
The best time to visit Conneaut
Considering parameters like temperature, sunshine hours, and rainfall, the ideal time to visit Conneaut, Ohio would be from June to September. During these months temperatures peak, and sunshine hours are at their maximum, between 9.9 hours and 10.5 hours per day. Rainfall during this period, though peaking at 4.25" (108mm) in June, remains relatively steady. The average sea temperature also climbs to a comfortable range from 63.5°F (17.5°C) in June to 70.3°F (21.3°C) in September.The worst time to visit Conneaut
Travelers planning a trip to Conneaut should consider avoiding January and February. These months are the coldest with average high temperatures hovering between 30.9°F (-0.6°C) and 32.2°F (0.1°C), and average lows dipping to 22.5°F (-5.3°C) and 22.6°F (-5.2°C). Snowfall is at its highest between those months, with an average of 3.98" (101mm) and 4.84" (123mm), respectively. Along with the cold, these months also experience limited sunlight, averaging only 2.4 hours and 3.2 hours per day.Spring weather in Conneaut
The spring season in Conneaut, spanning from March to May, ushers in warmer conditions. High temperatures rise from 38.7°F (3.7°C) in March to 58.6°F (14.8°C) in May, while lows climb from 29.1°F (-1.6°C) to 48.9°F (9.4°C). Rainfall values increase during this time, resulting in wetter conditions with rainfall values escalating from 2.52" (64mm) in March to 3.43" (87mm) in May. The daylight hours increase and the sun shines between 5.5 hours to 9 hours a day, indicative of the transition to warmer months.Summer weather in Conneaut
In summer, from June to August, Conneaut experiences its warmest time of the year. Average high temperatures range from 68.5°F (20.3°C) to 75.6°F (24.2°C), and lows vary from 59.2°F (15.1°C) to 66.4°F (19.1°C). The summer season sees the maximum amount of rainfall of 4.25" (108mm) in June. This season also enjoys the longest daylight hours of up to 15.2 hours in June. Average sunshine hours peak at 10.5 hours in July and August.Autumn weather in Conneaut
Autumn in Conneaut occurs from September to November, featuring a gradual cooling of temperatures. Average highs decrease from 69.6°F (20.9°C) in September to 46.8°F (8.2°C) in November, and average lows descend from 60.4°F (15.8°C) to 38.8°F (3.8°C). The autumn months also bring a rise in rainfall, peaking at 3.54" (90mm) in October. As the season progresses, daylight hours reduce from 12.5 hours in September to 9.8 hours in November.Winter weather in Conneaut
The winter months from December to February in Conneaut, Ohio, are characterized by the lowest temperatures of the year. The average highs range from 30.9°F (-0.6°C) in January to 37.6°F (3.1°C) in December, and lows fluctuate between 22.5°F (-5.3°C) and 31.1°F (-0.5°C). December registers the most rainfall of the winter months at 2.56" (65mm), while January and February witness the highest snowfall of 3.98" (101mm) and 4.84" (123mm) respectively. This season receives the shortest daylight hours, and decreased sunshine, with an average of 2.7 hours a day in December.Weather in January
Starting off the year in Conneaut, Ohio, January showcases a true winter feel. With mercury rarely crossing 30.9°F (-0.6°C), this month remains cloaked under the comfort of blankets and fireplaces. Snowfall amounting to 3.98" (101mm) and overcast sky for approximately 76% of the time depict a typical northern chilly scene. Weather in January »Weather in February
Moving into February, Conneaut weather exhibits a slight increase in temperatures, topping off at 32.2°F (0.1°C). A prevalent winter gust can still be felt with snowfall measuring up to 4.84" (123mm), making it the month with maximum snowfall. Weather in February »Weather in March
March in Conneaut brings with it an onset of spring. A noticeable difference can be seen in temperatures as they rise to a high of 38.7°F (3.7°C). Despite this warming trend, there is a good amount of snow, around 1.46" (37mm), to be expected in the early part of the month. Weather in March »Weather in April
April rings in milder weather in Conneaut, with a significantly warmer change, as temperatures soar to an elevated 48.6°F (9.2°C). Witnessing the maximum rainfall days at 16.8, this month can be characterized as the beginning of the rainy season. Weather in April »Weather in May
May in Conneaut, Ohio welcomes a high average temperature of 58.6°F (14.8°C). The city observes an increased precipitation of 3.43" (87mm) maintaining an ongoing rainy season. Higher temperatures and increased rainfall paint a picture of a comfortably warm and wet month, setting it apart from the preceding April, and the following month, June. Weather in May »Weather in June
The onset of summer is fully experienced in Conneaut as June arrives. Heatwaves touch a high of 68.5°F (20.3°C), a significant increment from May. The high precipitation at 4.25" (108mm) marks this as the month receiving the maximum rainfall in the year. Weather in June »Weather in July
July, at the peak of summer, is the warmest month in Conneaut with the temperature reaching a high of 75.6°F (24.2°C). Despite heavy showers, the combined effect of long daylight hours (14.9 hours) and ample sunshine hours (10.5 hours) makes this the sunniest month of the year. Weather in July »Weather in August
In August, the warmth continues to linger in Conneaut with the temperature reaching a similar high as in July of 74.8°F (23.8°C). With 17.2 rainy days, it parallels July as a wet summer month. The predominance of sunny weather compared to the following month, September, generates an ideal climate for beachgoers. Weather in August »Weather in September
September indicates the commencement of fall in Conneaut with temperatures averaging a high of 69.6°F (20.9°C). Despite this drop in mercury, the city receives 2.68" (68mm) of rainfall. Marked departure from the hot August and the chiller October to follow, September is characterized by a balance of warm and cool weather. Weather in September »Weather in October
With the onset of October, a pronounced coolness creeps into the air in Conneaut, as temperatures drop to a high of 58.6°F (14.8°C). Receiving the maximum rainfall of 3.54" (90mm), this month truly ushers in the wet fall season. Weather in October »Weather in November
Beginning of winter is felt in November as Conneaut experiences a further drop in temperature, recording a high of 46.8°F (8.2°C). Snow makes a comeback with the city seeing 1.46" (37mm) of it, marking a shift from rainfall. Weather in November »Weather in December
The year ends in Conneaut with a full-fledged winter ambiance in December, with temperatures dropping to a low of 37.6°F (3.1°C). The month observes a significant 2.76" (70mm) of snowfall, second only to February. As daylight hours reduce to their shortest, and cloud coverage increases, a chilly, winter scenery sets in, distinct from November and upcoming January. Weather in December »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Conneaut, OH
The warmest month (with the highest average high temperature) is July (75.6°F).
The month with the lowest average high temperature is January (30.9°F).
The months with the highest average low temperature are July and August (66.4°F).
The coldest month (with the lowest average low temperature) is January (22.5°F).
Average pressure
Conneaut, OH
- Average pressure in January:
30.08"Hg - Average pressure in February:
30.06"Hg - Average pressure in March:
30.08"Hg - Average pressure in April:
29.97"Hg - Average pressure in May:
29.99"Hg - Average pressure in June:
29.93"Hg
- Average pressure in July:
29.96"Hg - Average pressure in August:
29.98"Hg - Average pressure in September:
30.04"Hg - Average pressure in October:
30.01"Hg - Average pressure in November:
30.1"Hg - Average pressure in December:
30.08"Hg
The month with the highest atmospheric pressure is November (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed
Conneaut, OH
- Average wind speed in January:
13.3mph - Average wind speed in February:
11.6mph - Average wind speed in March:
10.9mph - Average wind speed in April:
10.8mph - Average wind speed in May:
8.9mph - Average wind speed in June:
8.7mph
- Average wind speed in July:
8mph - Average wind speed in August:
8.8mph - Average wind speed in September:
10mph - Average wind speed in October:
12.3mph - Average wind speed in November:
13.3mph - Average wind speed in December:
13.5mph
The windiest month (with the highest average wind speed) is December (13.5mph).
The calmest month (with the lowest average wind speed) is July (8mph).
Average humidity
Conneaut, OH
The month with the highest relative humidity is February (86%).
The months with the lowest relative humidity are August, September and November (77%).
Average rainfall
Conneaut, OH
- Average rainfall in January:
2.32" - Average rainfall in February:
2.28" - Average rainfall in March:
2.52" - Average rainfall in April:
2.99" - Average rainfall in May:
3.43" - Average rainfall in June:
4.25"
- Average rainfall in July:
3.11" - Average rainfall in August:
3.07" - Average rainfall in September:
2.68" - Average rainfall in October:
3.54" - Average rainfall in November:
2.32" - Average rainfall in December:
2.56"
The wettest month (with the highest rainfall) is June (4.25").
The driest month (with the least rainfall) is February (2.28").
Average rainfall days
Conneaut, OH
- Average rainfall days in January:
7.9 days - Average rainfall days in February:
9.2 days - Average rainfall days in March:
12.6 days - Average rainfall days in April:
16.8 days - Average rainfall days in May:
16.8 days - Average rainfall days in June:
16.8 days
- Average rainfall days in July:
17.3 days - Average rainfall days in August:
17.2 days - Average rainfall days in September:
15.3 days - Average rainfall days in October:
18.6 days - Average rainfall days in November:
14.1 days - Average rainfall days in December:
11 days
The month with the highest number of rainy days is October (18.6 days).
The month with the least rainy days is January (7.9 days).
Average snowfall
Conneaut, OH
- Average snowfall in January:
3.98" - Average snowfall in February:
4.84" - Average snowfall in March:
1.46" - Average snowfall in April:
0.87" - Average snowfall in May:
0.04" - Average snowfall in June:
0"
The month with the highest snowfall is February (4.84").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days
Conneaut, OH
- Average snowfall days in January:
15.6 days - Average snowfall days in February:
14.3 days - Average snowfall days in March:
8.1 days - Average snowfall days in April:
2.8 days - Average snowfall days in May:
0.4 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 days - Average snowfall days in November:
5.7 days - Average snowfall days in December:
11.1 days
The month with the highest number of snowfall days is January (15.6 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average sea temperature
Conneaut, OH
The best month for swimming (with the highest average sea temperature) is August (75.7°F).
The coldest month (with the lowest average sea temperature) is February (32.7°F).
Average daylight / Average sunshine
Conneaut, OH
- Average daylight in January:
9h and 30min - 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:
2h and 24min - Average sunshine in February:
3h and 12min - Average sunshine in March:
5h and 30min - Average sunshine in April:
7h and 24min - Average sunshine in May:
9h and 0min - Average sunshine in June:
9h and 54min
- Average sunshine in July:
10h and 30min - Average sunshine in August:
10h and 30min - Average sunshine in September:
8h and 42min - Average sunshine in October:
5h and 0min - Average sunshine in November:
4h and 18min - Average sunshine in December:
2h and 42min
The months with the most sunshine are July and August (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 2h and 24min).
Average sunshine days
Conneaut, OH
- Average sunshine days in January:
6.3 days - Average sunshine days in February:
6.7 days - Average sunshine days in March:
11.3 days - Average sunshine days in April:
10.4 days - Average sunshine days in May:
11.8 days - Average sunshine days in June:
11.4 days
- Average sunshine days in July:
12 days - Average sunshine days in August:
11.6 days - Average sunshine days in September:
12.4 days - Average sunshine days in October:
10.4 days - Average sunshine days in November:
9.7 days - Average sunshine days in December:
6.9 days
The month with the most sunshine days is September (12.4 days).
The month with the least sunshine days is January (6.3 days).
Average UV index
Conneaut, OH
The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover
Conneaut, OH
The month with the most cloud cover is January (Cloud cover 76).
The months with the least cloud cover are July and August (Cloud cover 28).
Average visibility
Conneaut, OH
The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February and December (5mi).





