Climate and monthly weather forecastIonia, IA
Climate and monthly weather forecast
Weather in January
January, like December, is another subzero cold winter month in Ionia, Iowa, with an average temperature fluctuating between 22.5°F (-5.3°C) and 10.6°F (-11.9°C). January, characterized by an average high temperature of 22.5°F (-5.3°C) and a low temperature of 10.6°F (-11.9°C), is generally the coldest month. Weather in January »Weather in February
The last month of the winter, February, is also a subzero cold month in Ionia, Iowa, with an average temperature ranging between max 26.1°F (-3.3°C) and min 13.5°F (-10.3°C). Ionia's weather in February displays an average high-temperature of a still freezing cold 26.1°F (-3.3°C), showing minor disparity from January's 22.5°F (-5.3°C). Weather in February »Weather in March
March, the first month of the spring in Ionia, is a wintry month, with an average temperature fluctuating between 27.7°F (-2.4°C) and 41.4°F (5.2°C). As Ionia transitions into March, a marked increase in the average high-temperature is observed, rising from a subzero cold 26.1°F (-3.3°C) in February to a cold 41.4°F (5.2°C). Weather in March »Weather in April
April in Ionia, Iowa, is a cool spring month, with an average temperature varying between 54.5°F (12.5°C) and 38.3°F (3.5°C). The shift from March to April sees an increase in the average high-temperature, transitioning from a cold 41.4°F (5.2°C) to a fresh 54.5°F (12.5°C). Weather in April »Weather in May
The last month of the spring, May, is a comfortable month in Ionia, Iowa, with an average temperature fluctuating between 66.6°F (19.2°C) and 50°F (10°C). The shift into May is accompanied by a temperature increase, with the average high-temperature rising from a cool 54.5°F (12.5°C) in April to a refreshing 66.6°F (19.2°C). Weather in May »Weather in June
The first month of the summer, June, is a warm month in Ionia, Iowa, with temperature in the range of an average low of 60.1°F (15.6°C) and an average high of 76.1°F (24.5°C). The shift into June is accompanied by a temperature increase, with the average high-temperature rising from an enjoyable 66.6°F (19.2°C) in May to a moderately hot 76.1°F (24.5°C). Weather in June »Weather in July
July, like June, in Ionia, Iowa, is a moderately hot summer month, with an average temperature varying between 79°F (26.1°C) and 62.6°F (17°C). Ionia's warmest temperatures are experienced in July, with average high temperatures of 79°F (26.1°C) and lows of 62.6°F (17°C). Weather in July »Weather in August
August, the last month of the summer in Ionia, is another warm month, with temperature in the range of an average high of 77.4°F (25.2°C) and an average low of 59.5°F (15.3°C). The arrival of August brings an average high-temperature of a still moderately hot 77.4°F (25.2°C), subtly diverging from July's 79°F (26.1°C). Weather in August »Weather in September
September, the first month of the autumn in Ionia, is still a pleasant month, with an average temperature fluctuating between 52.9°F (11.6°C) and 71.8°F (22.1°C). Ionia, Iowa, experiences a moderate temperature shift at the start of September, with average high-temperatures adjusting a bit from a warm 77.4°F (25.2°C) in August to a pleasant 71.8°F (22.1°C). Weather in September »Weather in October
October, like September, is another mild autumn month in Ionia, Iowa, with temperature in the range of an average low of 41.7°F (5.4°C) and an average high of 57.2°F (14°C). October signals a clear decrease in the average high-temperature, dropping from September's pleasant 71.8°F (22.1°C) to a moderate 57.2°F (14°C). Weather in October »Weather in November
November, the last month of the autumn in Ionia, is also a wintry month, with temperature in the range of an average high of 42.4°F (5.8°C) and an average low of 29.7°F (-1.3°C). The start of November brings a distinct shift in the average high-temperature, dropping from October's moderate 57.2°F (14°C) to an icy 42.4°F (5.8°C). Weather in November »Weather in December
The first month of the winter, December, is still a freezing cold month in Ionia, Iowa, with an average temperature varying between 28.4°F (-2°C) and 18.3°F (-7.6°C). Arrival of December comes with a reduction in the average high-temperature, falling from a wintry 42.4°F (5.8°C) in November to a subzero cold 28.4°F (-2°C). Weather in December »Updated: Feb 12, 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
The coldest period in Ionia tends to be January, when average temperatures fluctuate between a high of 22.5°F (-5.3°C) and a low of 10.6°F (-11.9°C).
The most humid month is January, with an average relative humidity of 89%.
The month with the least rainfall in Ionia is January, when the rain falls for 2.8 days and typically collects 0.31" (8mm) of precipitation.
In Ionia, during the entire year, the rain falls for 98 days and collects up to 9.8" (249mm) of precipitation.
January through May, October through December are months with snowfall in Ionia, Iowa.
In Ionia, during the entire year, snow falls for 36.8 days and aggregates up to 6.22" (158mm) of snow.
With an average of 3.5h of sunshine, January has the least sunshine of the year.
The months with the lowest UV index in Ionia, Iowa, are January, February, November and December, with an average maximum UV index of 1.
The month with the most snowfall is February, when snow falls for 7.5 days and typically aggregates up to 1.85" (47mm) of snow.
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Ionia, 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 in Ionia, Iowa, is June, when the rain falls for 14.5 days and typically aggregates up to 1.5" (38mm) of precipitation.
June through September are months without snowfall in Ionia.
June has the longest days of the year, with an average of 15h and 18min of daylight.
June is the month with the highest UV index in Ionia, Iowa, with an average maximum UV index of 6.
July temperatures tend to peak at an average high of 79°F (26.1°C) and dip to a low of 62.6°F (17°C).
With an average of 9.8h of sunshine, July has the most sunshine of the year in Ionia.
October is the least humid month, with an average relative humidity of 73%.
The month with the shortest days is December, with an average of 9h and 6min of daylight.
Average temperature
Ionia, IA
The warmest month (with the highest average high temperature) is July (79°F).
The month with the lowest average high temperature is January (22.5°F).
The month with the highest average low temperature is July (62.6°F).
The coldest month (with the lowest average low temperature) is January (10.6°F).
Average pressure
Ionia, IA
- Average pressure in January:
30.14"Hg - Average pressure in February:
30.13"Hg - Average pressure in March:
30.08"Hg - Average pressure in April:
29.93"Hg - Average pressure in May:
29.94"Hg - Average pressure in June:
29.89"Hg
- Average pressure in July:
29.96"Hg - Average pressure in August:
29.96"Hg - Average pressure in September:
30.01"Hg - Average pressure in October:
29.99"Hg - Average pressure in November:
30.07"Hg - Average pressure in December:
30.11"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed
Ionia, IA
- Average wind speed in January:
10.6mph - Average wind speed in February:
10.5mph - Average wind speed in March:
10.4mph - Average wind speed in April:
10.7mph - Average wind speed in May:
9.3mph - Average wind speed in June:
8.2mph
- Average wind speed in July:
7.2mph - Average wind speed in August:
7.2mph - Average wind speed in September:
8.3mph - Average wind speed in October:
9.9mph - Average wind speed in November:
10.4mph - Average wind speed in December:
10.1mph
The windiest month (with the highest average wind speed) is April (10.7mph).
The calmest months (with the lowest average wind speed) are July and August (7.2mph).
Average humidity
Ionia, IA
The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is October (73%).
Average rainfall
Ionia, IA
- Average rainfall in January:
0.31" - Average rainfall in February:
0.39" - Average rainfall in March:
0.51" - Average rainfall in April:
0.87" - Average rainfall in May:
1.38" - Average rainfall in June:
1.5"
- Average rainfall in July:
1.14" - Average rainfall in August:
1.02" - Average rainfall in September:
0.87" - Average rainfall in October:
0.91" - Average rainfall in November:
0.47" - Average rainfall in December:
0.43"
The wettest month (with the highest rainfall) is June (1.5").
The driest month (with the least rainfall) is January (0.31").
Average rainfall days
Ionia, IA
- Average rainfall days in January:
2.8 days - Average rainfall days in February:
2 days - Average rainfall days in March:
7.2 days - Average rainfall days in April:
10.8 days - Average rainfall days in May:
14.3 days - Average rainfall days in June:
14.5 days
- Average rainfall days in July:
12.1 days - Average rainfall days in August:
10.6 days - Average rainfall days in September:
8.3 days - Average rainfall days in October:
7.2 days - Average rainfall days in November:
4.7 days - Average rainfall days in December:
3.5 days
The month with the highest number of rainy days is June (14.5 days).
The month with the least rainy days is February (2 days).
Average snowfall
Ionia, IA
- Average snowfall in January:
1.5" - Average snowfall in February:
1.85" - Average snowfall in March:
0.63" - Average snowfall in April:
0.75" - Average snowfall in May:
0.04" - Average snowfall in June:
0"
The month with the highest snowfall is February (1.85").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Ionia, IA
- Average snowfall days in January:
9.1 days - Average snowfall days in February:
7.5 days - Average snowfall days in March:
5.3 days - Average snowfall days in April:
1.8 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:
1.2 days - Average snowfall days in November:
2.6 days - Average snowfall days in December:
9 days
The month with the highest number of snowfall days is January (9.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Ionia, IA
- 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 30min - Average sunshine in February:
3h and 48min - Average sunshine in March:
5h and 48min - Average sunshine in April:
7h and 24min - Average sunshine in May:
8h and 24min - Average sunshine in June:
9h and 24min
- Average sunshine in July:
9h and 48min - Average sunshine in August:
9h and 42min - Average sunshine in September:
9h and 0min - Average sunshine in October:
5h and 18min - Average sunshine in November:
5h and 6min - Average sunshine in December:
4h and 6min
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 30min).
Average sunshine days
Ionia, IA
- Average sunshine days in January:
21.7 days - Average sunshine days in February:
19.9 days - Average sunshine days in March:
19.8 days - Average sunshine days in April:
16.5 days - Average sunshine days in May:
13.9 days - Average sunshine days in June:
13.3 days
- Average sunshine days in July:
15.1 days - Average sunshine days in August:
18 days - Average sunshine days in September:
19.4 days - Average sunshine days in October:
21.8 days - Average sunshine days in November:
22 days - Average sunshine days in December:
20.9 days
The month with the most sunshine days is November (22 days).
The month with the least sunshine days is June (13.3 days).
Average UV index
Ionia, IA
The month with the highest UV index is June (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 1).
Average cloud cover
Ionia, IA
The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility
Ionia, IA
The months with the highest visibility are February, March, April, May, June, August, September, October, November and December (6mi).
The months with the lowest visibility are January and July (5mi).
