Climate and monthly weather forecastMonona, IA
Climate and monthly weather forecast
Weather in January
January, the same as December, in Monona, Iowa, is another subzero cold winter month, with an average temperature varying between 22.8°F (-5.1°C) and 10°F (-12.2°C). In Monona, Iowa, January is the month with the lowest recorded average temperatures, measuring a high of 22.8°F (-5.1°C) and a low of 10°F (-12.2°C). Weather in January »Weather in February
The last month of the winter, February, is another freezing cold month in Monona, Iowa, with an average temperature fluctuating between 26.4°F (-3.1°C) and 13.5°F (-10.3°C). Monona observes a minor difference in average high-temperatures between January's 22.8°F (-5.1°C) and February's 26.4°F (-3.1°C). Weather in February »Weather in March
March, the first month of the spring in Monona, is an icy month, with an average temperature ranging between min 27°F (-2.8°C) and max 41.5°F (5.3°C). March's arrival sees a clear escalation in the average high-temperature, rising from February's subzero cold 26.4°F (-3.1°C) to a wintry 41.5°F (5.3°C). Weather in March »Weather in April
April in Monona, Iowa, is a cool spring month, with an average temperature ranging between max 54.3°F (12.4°C) and min 37.9°F (3.3°C). April's arrival signals a temperature shift, moving from a cold 41.5°F (5.3°C) in March to a fresh 54.3°F (12.4°C). Weather in April »Weather in May
The last month of the spring, May, is a comfortable month in Monona, Iowa, with an average temperature varying between 48.7°F (9.3°C) and 66°F (18.9°C). May's arrival coincides with a temperature rise, moving from April's fresh 54.3°F (12.4°C) to a refreshing 66°F (18.9°C). Weather in May »Weather in June
The first month of the summer, June, is a moderately hot month in Monona, Iowa, with an average temperature varying between 58.5°F (14.7°C) and 75.4°F (24.1°C). June's onset is marked by a temperature increase, moving from an enjoyable 66°F (18.9°C) in May to a moderately hot 75.4°F (24.1°C). Weather in June »Weather in July
July, like June, in Monona, Iowa, is another warm summer month, with an average temperature varying between 62.2°F (16.8°C) and 79.3°F (26.3°C). Monona experiences its highest average temperatures in July, reaching a peak of 79.3°F (26.3°C) and a minimum of 62.2°F (16.8°C). Weather in July »Weather in August
August, the last month of the summer in Monona, is another warm month, with an average temperature ranging between min 59.5°F (15.3°C) and max 77.7°F (25.4°C). The advent of August reveals an average high-temperature of a still warm 77.7°F (25.4°C), showing minimal difference from the prior month. Weather in August »Weather in September
The first month of the autumn, September, is still a pleasant month in Monona, Iowa, with an average temperature varying between 71.2°F (21.8°C) and 52.3°F (11.3°C). The average high-temperature slightly decreases in September, shifting from a warm 77.7°F (25.4°C) in August to a pleasant 71.2°F (21.8°C). Weather in September »Weather in October
October, the same as September, in Monona, Iowa, is another mild autumn month, with an average temperature ranging between min 41.5°F (5.3°C) and max 57.2°F (14°C). The beginning of October marks a decrease in the average high-temperature, transitioning from a pleasant 71.2°F (21.8°C) in September to a refreshing 57.2°F (14°C). Weather in October »Weather in November
The last month of the autumn, November, is another cold month in Monona, Iowa, with temperature in the range of an average low of 29.7°F (-1.3°C) and an average high of 42.6°F (5.9°C). The beginning of November marks a clear shift in the average high-temperature, receding from October's moderate 57.2°F (14°C) to a cold 42.6°F (5.9°C). Weather in November »Weather in December
The first month of the winter, December, is still a freezing cold month in Monona, Iowa, with an average temperature varying between 18.7°F (-7.4°C) and 29.3°F (-1.5°C). December comes with a drop in the average high-temperature, falling from November's icy 42.6°F (5.9°C) to a subzero cold 29.3°F (-1.5°C). Weather in December »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Monona, IA
The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (22.8°F).
The month with the highest average low temperature is July (62.2°F).
The coldest month (with the lowest average low temperature) is January (10°F).
Average pressure
Monona, IA
- Average pressure in January:
30.13"Hg - Average pressure in February:
30.12"Hg - Average pressure in March:
30.08"Hg - Average pressure in April:
29.94"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:
30.02"Hg - Average pressure in October:
29.99"Hg - Average pressure in November:
30.08"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 (29.89"Hg).
Average wind speed
Monona, IA
- Average wind speed in January:
9.9mph - Average wind speed in February:
9.9mph - Average wind speed in March:
9.8mph - Average wind speed in April:
10.3mph - Average wind speed in May:
8.8mph - Average wind speed in June:
7.7mph
- Average wind speed in July:
6.9mph - Average wind speed in August:
6.9mph - Average wind speed in September:
7.9mph - Average wind speed in October:
9.3mph - Average wind speed in November:
9.9mph - Average wind speed in December:
9.6mph
The windiest month (with the highest average wind speed) is April (10.3mph).
The calmest months (with the lowest average wind speed) are July and August (6.9mph).
Average humidity
Monona, IA
The months with the highest relative humidity are January and February (88%).
The month with the lowest relative humidity is October (76%).
Average rainfall
Monona, IA
- Average rainfall in January:
1.18" - Average rainfall in February:
1.3" - Average rainfall in March:
1.89" - Average rainfall in April:
3.43" - Average rainfall in May:
4.33" - Average rainfall in June:
5.08"
- Average rainfall in July:
3.5" - Average rainfall in August:
2.44" - Average rainfall in September:
2.68" - Average rainfall in October:
2.76" - Average rainfall in November:
1.61" - Average rainfall in December:
1.65"
The wettest month (with the highest rainfall) is June (5.08").
The driest month (with the least rainfall) is January (1.18").
Average rainfall days
Monona, IA
- Average rainfall days in January:
4.3 days - Average rainfall days in February:
4.1 days - Average rainfall days in March:
11 days - Average rainfall days in April:
15.5 days - Average rainfall days in May:
20.2 days - Average rainfall days in June:
20 days
- Average rainfall days in July:
17.5 days - Average rainfall days in August:
14.3 days - Average rainfall days in September:
12.4 days - Average rainfall days in October:
11.5 days - Average rainfall days in November:
8.3 days - Average rainfall days in December:
6.1 days
The month with the highest number of rainy days is May (20.2 days).
The month with the least rainy days is February (4.1 days).
Average snowfall
Monona, IA
- Average snowfall in January:
5.75" - Average snowfall in February:
6.57" - Average snowfall in March:
2.99" - Average snowfall in April:
2.36" - Average snowfall in May:
0.12" - Average snowfall in June:
0"
The month with the highest snowfall is February (6.57").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Monona, IA
- Average snowfall days in January:
14.4 days - Average snowfall days in February:
13.4 days - Average snowfall days in March:
8.6 days - Average snowfall days in April:
3.5 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:
1.8 days - Average snowfall days in November:
5.4 days - Average snowfall days in December:
12.5 days
The month with the highest number of snowfall days is January (14.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Monona, 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 36min - Average sunshine in March:
5h and 48min - Average sunshine in April:
7h and 12min - Average sunshine in May:
8h and 6min - Average sunshine in June:
9h and 12min
- Average sunshine in July:
9h and 36min - Average sunshine in August:
9h and 48min - Average sunshine in September:
8h and 54min - Average sunshine in October:
5h and 18min - Average sunshine in November:
4h and 54min - Average sunshine in December:
4h and 0min
The month with the most sunshine is August (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).
Average sunshine days
Monona, IA
- Average sunshine days in January:
13.9 days - Average sunshine days in February:
13.7 days - Average sunshine days in March:
13.2 days - Average sunshine days in April:
10.9 days - Average sunshine days in May:
8.9 days - Average sunshine days in June:
7.8 days
- Average sunshine days in July:
9.3 days - Average sunshine days in August:
13.6 days - Average sunshine days in September:
15.1 days - Average sunshine days in October:
15.7 days - Average sunshine days in November:
17.2 days - Average sunshine days in December:
15.3 days
The month with the most sunshine days is November (17.2 days).
The month with the least sunshine days is June (7.8 days).
Average UV index
Monona, IA
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, November and December (UV index 1).
Average cloud cover
Monona, IA
The month with the most cloud cover is January (Cloud cover 64).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility
Monona, IA
The months with the highest visibility are March, April, May, June, August, September, October and November (6mi).
The months with the lowest visibility are January, February, July and December (5mi).





