Climate and monthly weather forecastSouth Amana, IA
Climate and monthly weather forecast
Weather in January
January, the same as December, in South Amana, Iowa, is another subzero cold winter month, with an average temperature ranging between max 27°F (-2.8°C) and min 14.4°F (-9.8°C). January is the coldest month of the year, registering average temperatures as high as 27°F (-2.8°C) and as low as 14.4°F (-9.8°C). Weather in January »Weather in February
February, the last month of the winter in South Amana, is also a subzero cold month, with an average temperature varying between 18°F (-7.8°C) and 30.9°F (-0.6°C). February begins with an average high-temperature of a still subzero cold 30.9°F (-0.6°C), reflecting close similarity to the preceding month. Weather in February »Weather in March
March, the first month of the spring in South Amana, is a frosty month, with an average temperature varying between 31.5°F (-0.3°C) and 45.9°F (7.7°C). In March, the meteorological conditions markedly change with the average high-temperature ascending from a freezing cold 30.9°F (-0.6°C) in February to a chilly 45.9°F (7.7°C). Weather in March »Weather in April
April in South Amana, Iowa, is a refreshing spring month, with an average temperature ranging between min 41.4°F (5.2°C) and max 58.1°F (14.5°C). The shift from March to April brings an increase in the average high-temperature, moving from a frosty 45.9°F (7.7°C) to a refreshing 58.1°F (14.5°C). Weather in April »Weather in May
May, the last month of the spring in South Amana, is a pleasant month, with an average temperature ranging between min 52.3°F (11.3°C) and max 69.1°F (20.6°C). South Amana's transition into May is marked by a rise in the average high-temperature, advancing from a moderate 58.1°F (14.5°C) in April to an agreeable 69.1°F (20.6°C). Weather in May »Weather in June
June, the first month of the summer in South Amana, is a warm month, with an average temperature ranging between min 61.9°F (16.6°C) and max 78.1°F (25.6°C). South Amana's transition into June is marked by a temperature shift, moving from an agreeable 69.1°F (20.6°C) in May to a warm 78.1°F (25.6°C). Weather in June »Weather in July
July, the same as June, is a moderately hot summer month in South Amana, Iowa, with an average temperature ranging between min 64.8°F (18.2°C) and max 81°F (27.2°C). South Amana's warmest month, July, generally records average temperatures ranging from a high of 81°F (27.2°C) to a low of 64.8°F (18.2°C). For July, the heat index is appraised at a hot 87.8°F (31°C). Weather in July »Weather in August
The last month of the summer, August, is also a moderately hot month in South Amana, Iowa, with temperature in the range of an average high of 79.7°F (26.5°C) and an average low of 62.1°F (16.7°C). South Amana marks the start of August with an average high-temperature of a still warm 79.7°F (26.5°C), hinting at a slight fluctuation from July's 81°F (27.2°C). Weather in August »Weather in September
September, the first month of the autumn in South Amana, is also a moderately hot month, with an average temperature fluctuating between 55.2°F (12.9°C) and 74.8°F (23.8°C). With the onset of September, the average high-temperature registers at a still warm 74.8°F (23.8°C), subtly different from August's 79.7°F (26.5°C). Weather in September »Weather in October
October, like September, is another refreshing autumn month in South Amana, Iowa, with temperature in the range of an average high of 60.1°F (15.6°C) and an average low of 44.4°F (6.9°C). South Amana's transition into October marks a considerable drop in the average high-temperature, moving down from a moderately hot 74.8°F (23.8°C) in September to a refreshing 60.1°F (15.6°C). Weather in October »Weather in November
November, the last month of the autumn in South Amana, is another chilly month, with an average temperature ranging between max 46°F (7.8°C) and min 32.2°F (0.1°C). Onset of November witnesses a reduction in the average high-temperature, falling from a mild 60.1°F (15.6°C) in October to a frosty 46°F (7.8°C). Weather in November »Weather in December
The first month of the winter, December, is also an icy month in South Amana, Iowa, with an average temperature fluctuating between 33.4°F (0.8°C) and 22.5°F (-5.3°C). In South Amana, entering December brings a temperature decrement, reducing from November's frosty 46°F (7.8°C) to a wintry 33.4°F (0.8°C). Weather in December »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
South Amana, IA
The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (27°F).
The month with the highest average low temperature is July (64.8°F).
The coldest month (with the lowest average low temperature) is January (14.4°F).
Average pressure
South Amana, IA
- Average pressure in January:
30.14"Hg - Average pressure in February:
30.13"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:
29.89"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"Hg - Average pressure in November:
30.09"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
South Amana, IA
- Average wind speed in January:
10.7mph - Average wind speed in February:
10.6mph - Average wind speed in March:
10.5mph - Average wind speed in April:
10.7mph - Average wind speed in May:
9.1mph - Average wind speed in June:
8mph
- Average wind speed in July:
7mph - Average wind speed in August:
7mph - Average wind speed in September:
8mph - Average wind speed in October:
9.7mph - Average wind speed in November:
10.4mph - Average wind speed in December:
10.1mph
The windiest months (with the highest average wind speed) are January and April (10.7mph).
The calmest months (with the lowest average wind speed) are July and August (7mph).
Average humidity
South Amana, IA
The months with the highest relative humidity are January, February and July (84%).
The month with the lowest relative humidity is October (72%).
Average rainfall
South Amana, IA
- Average rainfall in January:
1.14" - Average rainfall in February:
1.26" - Average rainfall in March:
1.97" - Average rainfall in April:
3.19" - Average rainfall in May:
4.33" - Average rainfall in June:
4.17"
- Average rainfall in July:
3.23" - Average rainfall in August:
2.28" - Average rainfall in September:
2.76" - Average rainfall in October:
2.24" - Average rainfall in November:
1.57" - Average rainfall in December:
1.46"
The wettest month (with the highest rainfall) is May (4.33").
The driest month (with the least rainfall) is January (1.14").
Average rainfall days
South Amana, IA
- Average rainfall days in January:
4.9 days - Average rainfall days in February:
4.3 days - Average rainfall days in March:
10.7 days - Average rainfall days in April:
15.3 days - Average rainfall days in May:
18.6 days - Average rainfall days in June:
18.8 days
- Average rainfall days in July:
16.5 days - Average rainfall days in August:
14.1 days - Average rainfall days in September:
12.4 days - Average rainfall days in October:
11.2 days - Average rainfall days in November:
8.6 days - Average rainfall days in December:
6.4 days
The month with the highest number of rainy days is June (18.8 days).
The month with the least rainy days is February (4.3 days).
Average snowfall
South Amana, IA
The month with the highest snowfall is January (5").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
South Amana, IA
- Average snowfall days in January:
9.4 days - Average snowfall days in February:
9.7 days - Average snowfall days in March:
5.5 days - Average snowfall days in April:
1.5 days - Average snowfall days in May:
0.1 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:
0.5 days - Average snowfall days in November:
2.5 days - Average snowfall days in December:
7.7 days
The month with the highest number of snowfall days is February (9.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
South Amana, IA
- Average daylight in January:
9h and 36min - 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:
4h and 6min - Average sunshine in February:
4h and 12min - Average sunshine in March:
6h and 18min - Average sunshine in April:
7h and 48min - Average sunshine in May:
8h and 36min - Average sunshine in June:
9h and 36min
- Average sunshine in July:
9h and 54min - Average sunshine in August:
9h and 48min - Average sunshine in September:
9h and 18min - Average sunshine in October:
5h and 24min - Average sunshine in November:
5h and 24min - Average sunshine in December:
4h and 30min
The month with the most sunshine is July (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).
Average sunshine days
South Amana, IA
- Average sunshine days in January:
18.3 days - Average sunshine days in February:
15.4 days - Average sunshine days in March:
15.3 days - Average sunshine days in April:
12 days - Average sunshine days in May:
9.9 days - Average sunshine days in June:
9.6 days
- Average sunshine days in July:
10.4 days - Average sunshine days in August:
13.7 days - Average sunshine days in September:
15.8 days - Average sunshine days in October:
18 days - Average sunshine days in November:
18 days - Average sunshine days in December:
17.8 days
The month with the most sunshine days is January (18.3 days).
The month with the least sunshine days is June (9.6 days).
Average UV index
South Amana, IA
The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is January (UV index 1).
Average cloud cover
South Amana, IA
The month with the most cloud cover is January (Cloud cover 56).
The months with the least cloud cover are August and September (Cloud cover 30).
Average visibility
South Amana, IA
The months with the highest visibility are January, February, March, April, May, June, August, September, October, November and December (6mi).
The month with the lowest visibility is July (5mi).





