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Contents
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average snowfall
- Average snowfall days
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
Weather in January
January, like December, is a freezing cold winter month in Castana, Iowa, with an average temperature fluctuating between 15.1°F (-9.4°C) and 28°F (-2.2°C). January, recording an average high temperature of 28°F (-2.2°C) and a low temperature of 15.1°F (-9.4°C), is Castana's coldest month. Weather in January »
Weather in February
The last month of the winter, February, is a cold month in Castana, Iowa, with temperature in the range of an average low of 18.3°F (-7.6°C) and an average high of 32.2°F (0.1°C). The start of February sees the average high-temperature at a wintry 32.2°F (0.1°C), showing little difference from January's 28°F (-2.2°C). Weather in February »
Weather in March
The first month of the spring, March, is a frosty month in Castana, Iowa, with an average temperature ranging between min 31.8°F (-0.1°C) and max 47.8°F (8.8°C). March signals a significant shift in the average high-temperature, soaring from February's cold 32.2°F (0.1°C) to a chilly 47.8°F (8.8°C). Weather in March »
Weather in April
April in Castana, Iowa, is a mild spring month, with temperature in the range of an average low of 42.1°F (5.6°C) and an average high of 59.4°F (15.2°C). April brings an increase in the average high-temperature, progressing from a chilly 47.8°F (8.8°C) in March to a refreshing 59.4°F (15.2°C). Weather in April »
Weather in May
The last month of the spring, May, is a pleasant month in Castana, Iowa, with an average temperature varying between 70.3°F (21.3°C) and 53.2°F (11.8°C). May's arrival sees a rise in the average high-temperature, jumping from April's mild 59.4°F (15.2°C) to a pleasant 70.3°F (21.3°C). Weather in May »
Weather in June
The first month of the summer, June, is a warm month in Castana, Iowa, with an average temperature varying between 80.2°F (26.8°C) and 63.1°F (17.3°C). The shift from May to June brings an increase in the average high-temperature, moving from a pleasant 70.3°F (21.3°C) to a warm 80.2°F (26.8°C). Weather in June »
Weather in July
July, the same as June, is another warm summer month in Castana, Iowa, with an average temperature ranging between min 65.5°F (18.6°C) and max 83.8°F (28.8°C). Castana's warmest weather arrives in July, when temperatures average a high of 83.8°F (28.8°C) and a low of 65.5°F (18.6°C). July's heat index is computed to be a hot 91.4°F (33°C). Weather in July »
Weather in August
The last month of the summer, August, is also a moderately hot month in Castana, Iowa, with an average temperature fluctuating between 82°F (27.8°C) and 61.7°F (16.5°C). With the onset of August, the average high-temperature registers at a still moderately hot 82°F (27.8°C), subtly different from July's 83.8°F (28.8°C). Weather in August »
Weather in September
The first month of the autumn, September, is still a warm month in Castana, Iowa, with an average temperature varying between 76.1°F (24.5°C) and 56.3°F (13.5°C). A minor decrease in the average high-temperature is observed during September, shifting from a moderately hot 82°F (27.8°C) in August to a still warm 76.1°F (24.5°C). Weather in September »
Weather in October
October, like September, is another mild autumn month in Castana, Iowa, with an average temperature varying between 44.4°F (6.9°C) and 60.6°F (15.9°C). October's arrival witnesses a distinct temperature drop, receding from September's warm 76.1°F (24.5°C) to a moderate 60.6°F (15.9°C). Weather in October »
Weather in November
The last month of the autumn, November, is another chilly month in Castana, Iowa, with an average temperature varying between 32.7°F (0.4°C) and 47.3°F (8.5°C). The start of November comes with a reduction in the average high-temperature, receding from a refreshing 60.6°F (15.9°C) in October to a chilly 47.3°F (8.5°C). Weather in November »
Weather in December
December, the first month of the winter in Castana, is still a cold month, with temperature in the range of an average low of 20.3°F (-6.5°C) and an average high of 32.2°F (0.1°C). The transition from November to December brings a clear temperature drop, with average high-temperatures decreasing from a frosty 47.3°F (8.5°C) to a wintry 32.2°F (0.1°C). Weather in December »
[Resources]Frequently asked questions
What month is the coldest in Castana?
January, on average, is the coldest month, registering a high temperature of 28°F (-2.2°C) and a low of 15.1°F (-9.4°C).
What is the most humid month in Castana?
The most humid month is January, with an average relative humidity of 82%.
What is the driest month in Castana?
January is the month with the least rainfall. Rain falls for 2.9 days and accumulates 0.67" (17mm) of precipitation.
How many days does it rain in Castana?
In Castana, Iowa, during the entire year, the rain falls for 117.6 days and collects up to 21.89" (556mm) of precipitation.
When does it snow in Castana?
January through April, October through December are months with snowfall in Castana, Iowa.
How many days does it snow in Castana?
In Castana, during the entire year, snow falls for 32.9 days and aggregates up to 11.69" (297mm) of snow.
What is the month with the least sunshine in Castana?
The month with the least sunshine is January, with an average of 4.4h of sunshine.
What is the snowiest month in Castana?
The month with the most snowfall is February, when snow falls for 7.5 days and typically aggregates up to 3.03" (77mm) of snow.
What is the month with the lowest UV index in Castana?
February and December, with an average maximum UV index of 1, are months with the lowest UV index.
When is Daylight Saving Time (DST) in Castana?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Castana, 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.
What is the least humid month in Castana?
The months with the lowest humidity are April and October, with an average relative humidity of 66%.
What is the rainiest month in Castana?
May is the month with the most rainfall in Castana. Rain falls for 16.6 days and accumulates 3.31" (84mm) of precipitation.
When it does not snow in Castana?
May through September are months without snowfall in Castana, Iowa.
When are the longest days in Castana?
June has the longest days of the year, with an average of 15h and 12min of daylight.
What are the months with the highest UV index in Castana?
The months with the highest UV index in Castana, Iowa, are June through August, with an average maximum UV index of 6.
What are the warmest months in Castana?
Castana's July weather reaches an average high of 83.8°F (28.8°C) and an average low of 65.5°F (18.6°C), making it the warmest month.
What month has the most sunshine in Castana?
The month with the most sunshine is July, with an average of 10.6h of sunshine.
What is the month with the shortest days in Castana?
December has the shortest days of the year, with an average of 9h and 12min of daylight.
Average temperature
Castana, IA
The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is January (28°F).
The month with the highest average low temperature is July (65.5°F).
The coldest month (with the lowest average low temperature) is January (15.1°F).
Average pressure
Castana, IA
- Average pressure in January:
30.16"Hg - Average pressure in February:
30.15"Hg - Average pressure in March:
30.06"Hg - Average pressure in April:
29.92"Hg - Average pressure in May:
29.92"Hg - Average pressure in June:
29.86"Hg
- Average pressure in July:
29.94"Hg - Average pressure in August:
29.95"Hg - Average pressure in September:
29.99"Hg - Average pressure in October:
30"Hg - Average pressure in November:
30.08"Hg - Average pressure in December:
30.13"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.86"Hg).
Average wind speed
Castana, IA
- Average wind speed in January:
10.4mph - Average wind speed in February:
10.5mph - Average wind speed in March:
10.6mph - Average wind speed in April:
10.9mph - Average wind speed in May:
9.3mph - Average wind speed in June:
8.7mph
- Average wind speed in July:
7.4mph - Average wind speed in August:
7.7mph - Average wind speed in September:
8.8mph - Average wind speed in October:
9.9mph - Average wind speed in November:
10.3mph - Average wind speed in December:
10mph
The windiest month (with the highest average wind speed) is April (10.9mph).
The calmest month (with the lowest average wind speed) is July (7.4mph).
Average humidity
Castana, IA
The month with the highest relative humidity is January (82%).
The months with the lowest relative humidity are April and October (66%).
Average rainfall
Castana, IA
- Average rainfall in January:
0.67" - Average rainfall in February:
0.83" - Average rainfall in March:
1.38" - Average rainfall in April:
2.17" - Average rainfall in May:
3.31" - Average rainfall in June:
3.15"
- Average rainfall in July:
1.77" - Average rainfall in August:
2.28" - Average rainfall in September:
2.05" - Average rainfall in October:
2.05" - Average rainfall in November:
0.83" - Average rainfall in December:
1.42"
The wettest month (with the highest rainfall) is May (3.31").
The driest month (with the least rainfall) is January (0.67").
Average rainfall days
Castana, IA
- Average rainfall days in January:
2.9 days - Average rainfall days in February:
2.7 days - Average rainfall days in March:
8.9 days - Average rainfall days in April:
13.4 days - Average rainfall days in May:
16.6 days - Average rainfall days in June:
16 days
- Average rainfall days in July:
12.6 days - Average rainfall days in August:
13.8 days - Average rainfall days in September:
11.3 days - Average rainfall days in October:
10.4 days - Average rainfall days in November:
5.5 days - Average rainfall days in December:
3.5 days
The month with the highest number of rainy days is May (16.6 days).
The month with the least rainy days is February (2.7 days).
Average snowfall
Castana, IA
The month with the highest snowfall is February (3.03").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days
Castana, IA
- Average snowfall days in January:
8.9 days - Average snowfall days in February:
7.5 days - Average snowfall days in March:
4.5 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:
0.9 days - Average snowfall days in November:
2.5 days - Average snowfall days in December:
7 days
The month with the highest number of snowfall days is January (8.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Castana, IA
- Average daylight in January:
9h and 3min - Average daylight in February:
10h and 4min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 2min - Average daylight in May:
14h and 4min - Average daylight in June:
15h and 1min
- Average daylight in July:
14h and 5min - Average daylight in August:
13h and 5min - Average daylight in September:
12h and 3min - Average daylight in October:
11h and 1min - Average daylight in November:
9h and 5min - Average daylight in December:
9h and 1min
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 2min - Average sunshine in February:
5h and 2min - Average sunshine in March:
6h and 2min - Average sunshine in April:
8h and 1min - Average sunshine in May:
8h and 5min - Average sunshine in June:
10h and 0min
- Average sunshine in July:
10h and 4min - Average sunshine in August:
9h and 5min - Average sunshine in September:
8h and 5min - Average sunshine in October:
6h and 1min - Average sunshine in November:
5h and 5min - Average sunshine in December:
4h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 4h and 24min).
Average sunshine days
Castana, IA
- Average sunshine days in January:
19.4 days - Average sunshine days in February:
17.3 days - Average sunshine days in March:
17.9 days - Average sunshine days in April:
14 days - Average sunshine days in May:
12.1 days - Average sunshine days in June:
12 days
- Average sunshine days in July:
15.6 days - Average sunshine days in August:
14.3 days - Average sunshine days in September:
16.4 days - Average sunshine days in October:
19 days - Average sunshine days in November:
21.5 days - Average sunshine days in December:
20.7 days
The month with the most sunshine days is November (21.5 days).
The month with the least sunshine days is June (12 days).
Average UV index
Castana, IA
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are February and December (UV index 1).
Average cloud cover
Castana, IA
The month with the most cloud cover is January (Cloud cover 52).
The month with the least cloud cover is July (Cloud cover 26).
Average visibility
Castana, 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).
Castana, Iowa, USA
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