Climate and monthly weather forecastChapin, IA
Climate and monthly weather forecast
Weather in January
January, like December, is another subzero cold winter month in Chapin, Iowa, with temperature in the range of an average low of 10.9°F (-11.7°C) and an average high of 23.4°F (-4.8°C). January, having an average high-temperature of 23.4°F (-4.8°C) and an average low-temperature of 10.9°F (-11.7°C), is the coldest month. Weather in January »Weather in February
February, the last month of the winter in Chapin, is also a subzero cold month, with temperature in the range of an average high of 27.3°F (-2.6°C) and an average low of 14.5°F (-9.7°C). The shift into February reveals an average high-temperature of a still freezing cold 27.3°F (-2.6°C), closely mirroring January's climate. Weather in February »Weather in March
The first month of the spring, March, is a chilly month in Chapin, Iowa, with an average temperature fluctuating between 42.8°F (6°C) and 28.9°F (-1.7°C). As Chapin transitions into March, the average high-temperature shows a marked escalation, increasing from a freezing cold 27.3°F (-2.6°C) in February to a frosty 42.8°F (6°C). Weather in March »Weather in April
April is a mild spring month in Chapin, Iowa, with temperature in the range of an average low of 39.9°F (4.4°C) and an average high of 55.9°F (13.3°C). Chapin's weather shows a temperature rise with the arrival of April, moving from a frosty 42.8°F (6°C) in March to a refreshing 55.9°F (13.3°C). Weather in April »Weather in May
The last month of the spring, May, is a comfortable month in Chapin, Iowa, with an average temperature varying between 51.6°F (10.9°C) and 67.8°F (19.9°C). Chapin's transition into May brings a rise in the average high-temperature, moving from a mild 55.9°F (13.3°C) in April to a comfortable 67.8°F (19.9°C). Weather in May »Weather in June
June, the first month of the summer in Chapin, is a warm month, with an average temperature fluctuating between 61.2°F (16.2°C) and 77.2°F (25.1°C). Entering June, Chapin sees a temperature rise, with the average high-temperature advancing from May's refreshing 67.8°F (19.9°C) to a warm 77.2°F (25.1°C). Weather in June »Weather in July
July, like June, in Chapin, Iowa, is another warm summer month, with an average temperature ranging between min 63.1°F (17.3°C) and max 79.7°F (26.5°C). Chapin, Iowa, witnesses the warmest weather in July, with temperatures averaging a high of 79.7°F (26.5°C) and a low of 63.1°F (17.3°C). Weather in July »Weather in August
The last month of the summer, August, is another warm month in Chapin, Iowa, with an average temperature fluctuating between 78.3°F (25.7°C) and 60.4°F (15.8°C). As August unfolds, the average high-temperature reaches a still moderately hot 78.3°F (25.7°C), hinting at a slight fluctuation from the previous month. Weather in August »Weather in September
The first month of the autumn, September, is also an agreeable month in Chapin, Iowa, with an average temperature fluctuating between 72.5°F (22.5°C) and 54.3°F (12.4°C). A moderate decline in average high-temperatures is noted in September, moving from a warm 78.3°F (25.7°C) in August to an agreeable 72.5°F (22.5°C). Weather in September »Weather in October
October, like September, is another mild autumn month in Chapin, Iowa, with an average temperature ranging between min 43.2°F (6.2°C) and max 57.9°F (14.4°C). October's onset brings a noticeable temperature drop, falling from a pleasant 72.5°F (22.5°C) in September to a mild 57.9°F (14.4°C). Weather in October »Weather in November
November, the last month of the autumn in Chapin, is also a frosty month, with temperature in the range of an average low of 31.1°F (-0.5°C) and an average high of 43.5°F (6.4°C). November's onset brings a noticeable temperature drop, falling from a mild 57.9°F (14.4°C) in October to a chilly 43.5°F (6.4°C). Weather in November »Weather in December
The first month of the winter, December, is still a freezing cold month in Chapin, Iowa, with an average temperature varying between 19°F (-7.2°C) and 29.7°F (-1.3°C). With December's arrival, Chapin's weather changes as the average high-temperature falls from a frosty 43.5°F (6.4°C) in November to a freezing cold 29.7°F (-1.3°C). Weather in December »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Chapin, IA
The warmest month (with the highest average high temperature) is July (79.7°F).
The month with the lowest average high temperature is January (23.4°F).
The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (10.9°F).
Average pressure
Chapin, IA
- Average pressure in January:
30.15"Hg - Average pressure in February:
30.14"Hg - Average pressure in March:
30.08"Hg - Average pressure in April:
29.93"Hg - Average pressure in May:
29.93"Hg - Average pressure in June:
29.88"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:
30"Hg - Average pressure in November:
30.08"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 (29.88"Hg).
Average wind speed
Chapin, IA
- Average wind speed in January:
10.9mph - Average wind speed in February:
10.8mph - Average wind speed in March:
10.6mph - Average wind speed in April:
10.9mph - Average wind speed in May:
9.4mph - Average wind speed in June:
8.4mph
- Average wind speed in July:
7.2mph - Average wind speed in August:
7.2mph - Average wind speed in September:
8.5mph - Average wind speed in October:
10mph - Average wind speed in November:
10.7mph - Average wind speed in December:
10.4mph
The windiest months (with the highest average wind speed) are January and April (10.9mph).
The calmest months (with the lowest average wind speed) are July and August (7.2mph).
Average humidity
Chapin, IA
The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is October (71%).
Average rainfall
Chapin, IA
- Average rainfall in January:
1.1" - Average rainfall in February:
1.34" - Average rainfall in March:
1.81" - Average rainfall in April:
3.35" - Average rainfall in May:
4.25" - Average rainfall in June:
4.69"
- Average rainfall in July:
2.52" - Average rainfall in August:
2.64" - Average rainfall in September:
2.56" - Average rainfall in October:
2.44" - Average rainfall in November:
1.38" - Average rainfall in December:
1.61"
The wettest month (with the highest rainfall) is June (4.69").
The driest month (with the least rainfall) is January (1.1").
Average rainfall days
Chapin, IA
- Average rainfall days in January:
4.8 days - Average rainfall days in February:
4 days - Average rainfall days in March:
11 days - Average rainfall days in April:
16.1 days - Average rainfall days in May:
19.4 days - Average rainfall days in June:
20.2 days
- Average rainfall days in July:
17.8 days - Average rainfall days in August:
15.3 days - Average rainfall days in September:
12.5 days - Average rainfall days in October:
10.5 days - Average rainfall days in November:
8.8 days - Average rainfall days in December:
5.8 days
The month with the highest number of rainy days is June (20.2 days).
The month with the least rainy days is February (4 days).
Average snowfall
Chapin, IA
- Average snowfall in January:
5.47" - Average snowfall in February:
6.42" - Average snowfall in March:
3.66" - Average snowfall in April:
2.48" - Average snowfall in May:
0.39" - Average snowfall in June:
0"
The month with the highest snowfall is February (6.42").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Chapin, IA
- Average snowfall days in January:
13.3 days - Average snowfall days in February:
12.4 days - Average snowfall days in March:
8.3 days - Average snowfall days in April:
2.8 days - Average snowfall days in May:
0.2 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:
1.3 days - Average snowfall days in November:
4.7 days - Average snowfall days in December:
13 days
The month with the highest number of snowfall days is January (13.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Chapin, IA
- 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 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 48min - 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 48min - Average sunshine in February:
4h and 12min - Average sunshine in March:
6h and 0min - Average sunshine in April:
7h and 42min - Average sunshine in May:
8h and 30min - Average sunshine in June:
9h and 30min
- Average sunshine in July:
10h and 0min - Average sunshine in August:
9h and 48min - Average sunshine in September:
9h and 12min - Average sunshine in October:
5h and 30min - Average sunshine in November:
5h and 18min - Average sunshine in December:
4h and 18min
The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days
Chapin, IA
- Average sunshine days in January:
14.9 days - Average sunshine days in February:
12.8 days - Average sunshine days in March:
13.8 days - Average sunshine days in April:
10.9 days - Average sunshine days in May:
9.7 days - Average sunshine days in June:
7.8 days
- Average sunshine days in July:
9.4 days - Average sunshine days in August:
12.6 days - Average sunshine days in September:
15.2 days - Average sunshine days in October:
16.5 days - Average sunshine days in November:
17.2 days - Average sunshine days in December:
16 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
Chapin, IA
The months with the highest UV index are May, June, July and August (UV index 5).
The month with the lowest UV index is January (UV index 1).
Average cloud cover
Chapin, IA
The month with the most cloud cover is January (Cloud cover 60).
The months with the least cloud cover are August and September (Cloud cover 31).
Average visibility
Chapin, IA
The months with the highest visibility are March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are January, February, July and August (5mi).





