Climate and monthly weather forecastBonaparte, IA
Climate and monthly weather forecast
Weather in January
January, the same as December, in Bonaparte, Iowa, is another subzero cold winter month, with an average temperature ranging between min 18.3°F (-7.6°C) and max 30.2°F (-1°C). With average high and low temperatures of 30.2°F (-1°C) and 18.3°F (-7.6°C) respectively, January is Bonaparte's coldest month. Weather in January »Weather in February
The last month of the winter, February, is a cold month in Bonaparte, Iowa, with temperature in the range of an average low of 21.9°F (-5.6°C) and an average high of 35.2°F (1.8°C). February's arrival shows an average high-temperature of an icy 35.2°F (1.8°C), hardly different from the previous month. Weather in February »Weather in March
March, the first month of the spring in Bonaparte, is a frosty month, with an average temperature varying between 49.5°F (9.7°C) and 34.2°F (1.2°C). A rise in the average high-temperature is observed during March, moving from a wintry 35.2°F (1.8°C) in February to a chilly 49.5°F (9.7°C). Weather in March »Weather in April
April in Bonaparte, Iowa, is an enjoyable spring month, with an average temperature varying between 44.2°F (6.8°C) and 61.2°F (16.2°C). April comes with an increase, with the average high-temperature moving from a frosty 49.5°F (9.7°C) in March to a comfortable 61.2°F (16.2°C). Weather in April »Weather in May
May, the last month of the spring in Bonaparte, is a pleasant month, with temperature in the range of an average low of 54.1°F (12.3°C) and an average high of 71.1°F (21.7°C). With the onset of May, Bonaparte experiences a temperature shift, with the average high-temperature moving from an enjoyable 61.2°F (16.2°C) in April to a pleasant 71.1°F (21.7°C). Weather in May »Weather in June
June, the first month of the summer in Bonaparte, is a moderately hot month, with an average temperature ranging between min 63.7°F (17.6°C) and max 80.2°F (26.8°C). June sees a temperature increase, moving from a pleasant 71.1°F (21.7°C) in May to a warm 80.2°F (26.8°C). Weather in June »Weather in July
July, the same as June, is a moderately hot summer month in Bonaparte, Iowa, with an average temperature ranging between min 66°F (18.9°C) and max 82.9°F (28.3°C). Bonaparte's warmest month, July, registers temperatures that range from a high of 82.9°F (28.3°C) to a low of 66°F (18.9°C). July's heat index is appraised at a tropical 91.4°F (33°C). Weather in July »Weather in August
August, the last month of the summer in Bonaparte, is also a moderately hot month, with an average temperature fluctuating between 82.6°F (28.1°C) and 63.7°F (17.6°C). The transition into August notes an average high-temperature of a still moderately hot 82.6°F (28.1°C), revealing a mild distinction from the 82.9°F (28.3°C) in July. Weather in August »Weather in September
The first month of the autumn, September, is still a warm month in Bonaparte, Iowa, with an average temperature varying between 77°F (25°C) and 57.4°F (14.1°C). Bonaparte records a mild change in average high-temperature during September, easing from a moderately hot 82.6°F (28.1°C) in August to a still warm 77°F (25°C). Weather in September »Weather in October
October, the same as September, is another enjoyable autumn month in Bonaparte, Iowa, with an average temperature varying between 46°F (7.8°C) and 62.8°F (17.1°C). Bonaparte, Iowa, observes a minor decrease in the average high-temperature with the arrival of October, falling from September's moderately hot 77°F (25°C) to a comfortable 62.8°F (17.1°C). Weather in October »Weather in November
The last month of the autumn, November, is another chilly month in Bonaparte, Iowa, with an average temperature ranging between min 34.7°F (1.5°C) and max 48.6°F (9.2°C). Bonaparte's weather in November involves a decrease in the average high-temperature, moving down from October's enjoyable 62.8°F (17.1°C) to a frosty 48.6°F (9.2°C). Weather in November »Weather in December
The first month of the winter, December, is also an icy month in Bonaparte, Iowa, with an average temperature ranging between max 36.5°F (2.5°C) and min 25°F (-3.9°C). December involves a decrease in temperature, down from a chilly 48.6°F (9.2°C) in November to an icy 36.5°F (2.5°C). Weather in December »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Bonaparte, IA
The warmest month (with the highest average high temperature) is July (82.9°F).
The month with the lowest average high temperature is January (30.2°F).
The month with the highest average low temperature is July (66°F).
The coldest month (with the lowest average low temperature) is January (18.3°F).
Average pressure
Bonaparte, IA
- Average pressure in January:
30.15"Hg - Average pressure in February:
30.12"Hg - Average pressure in March:
30.07"Hg - Average pressure in April:
29.93"Hg - Average pressure in May:
29.94"Hg - Average pressure in June:
29.9"Hg
- Average pressure in July:
29.96"Hg - Average pressure in August:
29.97"Hg - Average pressure in September:
30.02"Hg - Average pressure in October:
30.01"Hg - Average pressure in November:
30.1"Hg - Average pressure in December:
30.11"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed
Bonaparte, IA
- Average wind speed in January:
10.6mph - Average wind speed in February:
10.4mph - Average wind speed in March:
10.4mph - Average wind speed in April:
10.4mph - Average wind speed in May:
8.8mph - Average wind speed in June:
7.8mph
- Average wind speed in July:
6.7mph - Average wind speed in August:
6.8mph - Average wind speed in September:
7.7mph - Average wind speed in October:
9.3mph - Average wind speed in November:
10.2mph - Average wind speed in December:
10mph
The windiest month (with the highest average wind speed) is January (10.6mph).
The calmest month (with the lowest average wind speed) is July (6.7mph).
Average humidity
Bonaparte, IA
The month with the highest relative humidity is July (82%).
The month with the lowest relative humidity is October (71%).
Average rainfall
Bonaparte, IA
- Average rainfall in January:
1.42" - Average rainfall in February:
1.46" - Average rainfall in March:
2.24" - Average rainfall in April:
3.39" - Average rainfall in May:
4.25" - Average rainfall in June:
3.7"
- Average rainfall in July:
2.68" - Average rainfall in August:
2.17" - Average rainfall in September:
2.28" - Average rainfall in October:
2.28" - Average rainfall in November:
1.73" - Average rainfall in December:
1.38"
The wettest month (with the highest rainfall) is May (4.25").
The driest month (with the least rainfall) is December (1.38").
Average rainfall days
Bonaparte, IA
- Average rainfall days in January:
6 days - Average rainfall days in February:
4.9 days - Average rainfall days in March:
13 days - Average rainfall days in April:
15.2 days - Average rainfall days in May:
19.2 days - Average rainfall days in June:
17.8 days
- Average rainfall days in July:
16.1 days - Average rainfall days in August:
13.5 days - Average rainfall days in September:
12 days - Average rainfall days in October:
11.7 days - Average rainfall days in November:
8.8 days - Average rainfall days in December:
7 days
The month with the highest number of rainy days is May (19.2 days).
The month with the least rainy days is February (4.9 days).
Average snowfall
Bonaparte, IA
The month with the highest snowfall is January (4.41").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days
Bonaparte, IA
- Average snowfall days in January:
9.2 days - Average snowfall days in February:
7.7 days - Average snowfall days in March:
4.2 days - Average snowfall days in April:
0.9 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:
0.4 days - Average snowfall days in November:
1.5 days - Average snowfall days in December:
5.5 days
The month with the highest number of snowfall days is January (9.2 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight / Average sunshine
Bonaparte, IA
- Average daylight in January:
9h and 42min - Average daylight in February:
10h and 42min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 18min - Average daylight in May:
14h and 30min - Average daylight in June:
15h and 0min
- Average daylight in July:
14h and 42min - Average daylight in August:
13h and 42min - Average daylight in September:
12h and 24min - Average daylight in October:
11h and 6min - Average daylight in November:
9h and 54min - Average daylight in December:
9h and 18min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in January:
4h and 12min - Average sunshine in February:
4h and 30min - Average sunshine in March:
6h and 30min - Average sunshine in April:
8h and 6min - Average sunshine in May:
8h and 54min - Average sunshine in June:
10h and 6min
- Average sunshine in July:
10h and 18min - Average sunshine in August:
10h and 0min - Average sunshine in September:
9h and 30min - Average sunshine in October:
5h and 36min - Average sunshine in November:
5h and 30min - Average sunshine in December:
4h and 42min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).
Average sunshine days
Bonaparte, IA
- Average sunshine days in January:
17.4 days - Average sunshine days in February:
15.5 days - Average sunshine days in March:
14.2 days - Average sunshine days in April:
12.5 days - Average sunshine days in May:
9.2 days - Average sunshine days in June:
9.3 days
- Average sunshine days in July:
11.6 days - Average sunshine days in August:
14.6 days - Average sunshine days in September:
16.3 days - Average sunshine days in October:
17.6 days - Average sunshine days in November:
18.7 days - Average sunshine days in December:
18.5 days
The month with the most sunshine days is November (18.7 days).
The month with the least sunshine days is May (9.2 days).
Average UV index
Bonaparte, IA
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover
Bonaparte, IA
The month with the most cloud cover is January (Cloud cover 54).
The months with the least cloud cover are July, August and September (Cloud cover 29).
Average visibility
Bonaparte, IA
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).





