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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, the same as December, in Arnold, Iowa, is a freezing cold winter month, with temperature in the range of an average high of 24.3°F (-4.3°C) and an average low of 11.7°F (-11.3°C). Arnold experiences its lowest average temperatures in January, reaching a peak of 24.3°F (-4.3°C) and a minimum of 11.7°F (-11.3°C). Weather in January »
Weather in February
The last month of the winter, February, is also a subzero cold month in Arnold, Iowa, with temperature in the range of an average high of 28.2°F (-2.1°C) and an average low of 14.9°F (-9.5°C). Arnold, Iowa, transitions into February recording an average high-temperature of a still freezing cold 28.2°F (-2.1°C), closely aligning with the preceding month's temperature. Weather in February »
Weather in March
March, the first month of the spring in Arnold, is a frosty month, with an average temperature varying between 44.1°F (6.7°C) and 29.5°F (-1.4°C). Arnold's weather experiences a significant temperature rise with the arrival of March, soaring from a subzero cold 28.2°F (-2.1°C) in February to a chilly 44.1°F (6.7°C). Weather in March »
Weather in April
April in Arnold, Iowa, is a mild spring month, with an average temperature fluctuating between 56.8°F (13.8°C) and 41°F (5°C). The shift into April is characterized by a rise in the average high-temperature, transitioning from March's frosty 44.1°F (6.7°C) to a refreshing 56.8°F (13.8°C). Weather in April »
Weather in May
May, the last month of the spring in Arnold, is a pleasant month, with temperature in the range of an average high of 69.1°F (20.6°C) and an average low of 52.5°F (11.4°C). Arnold's weather shows a temperature rise with the arrival of May, moving from a mild 56.8°F (13.8°C) in April to a pleasant 69.1°F (20.6°C). Weather in May »
Weather in June
The first month of the summer, June, is a moderately hot month in Arnold, Iowa, with an average temperature ranging between min 61.9°F (16.6°C) and max 78.1°F (25.6°C). In Arnold, the onset of June comes with an increased average high-temperature, moving from May's agreeable 69.1°F (20.6°C) to a warm 78.1°F (25.6°C). Weather in June »
Weather in July
July, the same as June, is another warm summer month in Arnold, Iowa, with an average temperature varying between 80.8°F (27.1°C) and 63.7°F (17.6°C). Arnold witnesses the warmest weather in July, with temperatures averaging a high of 80.8°F (27.1°C) and a low of 63.7°F (17.6°C). In July, the average heat index is appraised at a tropical 86°F (30°C). Weather in July »
Weather in August
August, the last month of the summer in Arnold, is another warm month, with an average temperature fluctuating between 61°F (16.1°C) and 79°F (26.1°C). Arnold transitions into August recording an average high-temperature of a still warm 79°F (26.1°C), closely aligning with the preceding month's temperature. Weather in August »
Weather in September
The first month of the autumn, September, is still a warm month in Arnold, Iowa, with temperature in the range of an average low of 54.5°F (12.5°C) and an average high of 74.1°F (23.4°C). The arrival of September records an average high-temperature of a still warm 74.1°F (23.4°C), closely related to the 79°F (26.1°C) observed in August. Weather in September »
Weather in October
October, like September, is another mild autumn month in Arnold, Iowa, with an average temperature fluctuating between 43.5°F (6.4°C) and 58.1°F (14.5°C). October signals a significant shift in the average high-temperature, falling from September's moderately hot 74.1°F (23.4°C) to a moderate 58.1°F (14.5°C). Weather in October »
Weather in November
November, the last month of the autumn in Arnold, is also a frosty month, with an average temperature ranging between min 31.5°F (-0.3°C) and max 44.1°F (6.7°C). November's arrival comes with a decrease in the average high-temperature, moving from a mild 58.1°F (14.5°C) in October to a chilly 44.1°F (6.7°C). Weather in November »
Weather in December
The first month of the winter, December, is also a subzero cold month in Arnold, Iowa, with an average temperature varying between 30°F (-1.1°C) and 19°F (-7.2°C). The shift from November to December involves a decrease in the average high-temperature, from a frosty 44.1°F (6.7°C) to a freezing cold 30°F (-1.1°C). Weather in December »
[Resources]Frequently asked questions
What month is the coldest in Arnold?
The coldest time of the year is January, with temperatures averaging a high of 24.3°F (-4.3°C) and a low of 11.7°F (-11.3°C).
What is the most humid month in Arnold?
January is the most humid month in Arnold, Iowa, with an average relative humidity of 86%.
What is the driest month in Arnold?
The month with the least rainfall in Arnold, Iowa, is January, when the rain falls for 4.5 days and typically collects 0.94" (24mm) of precipitation.
How much does it rain in Arnold?
Throughout the year, there are 130.6 rainfall days, and 25" (635mm) of precipitation is accumulated.
When does it snow in Arnold?
January through May, October through December are months with snowfall in Arnold.
How many days does it snow in Arnold?
Throughout the year, in Arnold, Iowa, there are 41.2 snowfall days, and 18.11" (460mm) of snow is accumulated.
What is the month with the least sunshine in Arnold?
With an average of 4h of sunshine, January has the least sunshine of the year.
When is the lowest UV index in Arnold?
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2.
What is the snowiest month in Arnold?
The month with the most snowfall in Arnold is February, when snow falls for 9 days and typically aggregates up to 5" (127mm) of snow.
When is Daylight Saving Time (DST) in Arnold?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, 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 wettest month in Arnold?
The month with the most rainfall in Arnold, Iowa, is June, when the rain falls for 17.3 days and typically aggregates up to 3.7" (94mm) of precipitation.
When it does not snow in Arnold?
June through September are months without snowfall.
When are the longest days in Arnold?
The month with the longest days is June, with an average of 15h and 18min of daylight.
When is the highest UV index in Arnold?
June and July, with an average maximum UV index of 6, are months with the highest UV index in Arnold.
What are the warmest months in Arnold?
The warmest period in Arnold, Iowa, tends to be July, when average temperatures fluctuate between a high of 80.8°F (27.1°C) and a low of 63.7°F (17.6°C).
What month has the most sunshine in Arnold?
With an average of 10.3h of sunshine, July has the most sunshine of the year.
What is the least humid month in Arnold?
October is the least humid month, with an average relative humidity of 68%.
What is the month with the shortest days in Arnold?
With an average of 9h and 6min of daylight, December has the shortest days of the year in Arnold, Iowa.
Average temperature
Arnold, IA
The warmest month (with the highest average high temperature) is July (80.8°F).
The month with the lowest average high temperature is January (24.3°F).
The month with the highest average low temperature is July (63.7°F).
The coldest month (with the lowest average low temperature) is January (11.7°F).
Average pressure
Arnold, IA
- Average pressure in January:
30.15"Hg - Average pressure in February:
30.14"Hg - Average pressure in March:
30.07"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:
30.12"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
Arnold, IA
- Average wind speed in January:
10.7mph - Average wind speed in February:
10.6mph - 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:
8.5mph
- Average wind speed in July:
7.3mph - Average wind speed in August:
7.3mph - Average wind speed in September:
8.5mph - Average wind speed in October:
9.9mph - Average wind speed in November:
10.5mph - Average wind speed in December:
10.3mph
The windiest month (with the highest average wind speed) is April (10.9mph).
The calmest months (with the lowest average wind speed) are July and August (7.3mph).
Average humidity
Arnold, IA
The month with the highest relative humidity is January (86%).
The month with the lowest relative humidity is October (68%).
Average rainfall
Arnold, IA
- Average rainfall in January:
0.94" - Average rainfall in February:
1.18" - Average rainfall in March:
1.5" - Average rainfall in April:
2.83" - Average rainfall in May:
3.43" - Average rainfall in June:
3.7"
The wettest month (with the highest rainfall) is June (3.7").
The driest month (with the least rainfall) is January (0.94").
Average rainfall days
Arnold, IA
- Average rainfall days in January:
4.5 days - Average rainfall days in February:
3.7 days - Average rainfall days in March:
10.6 days - Average rainfall days in April:
14.8 days - Average rainfall days in May:
17.1 days - Average rainfall days in June:
17.3 days
- Average rainfall days in July:
14.6 days - Average rainfall days in August:
13.1 days - Average rainfall days in September:
11.7 days - Average rainfall days in October:
10.8 days - Average rainfall days in November:
7.3 days - Average rainfall days in December:
5.1 days
The month with the highest number of rainy days is June (17.3 days).
The month with the least rainy days is February (3.7 days).
Average snowfall
Arnold, IA
The month with the highest snowfall is February (5").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Arnold, IA
- Average snowfall days in January:
11.3 days - Average snowfall days in February:
9 days - Average snowfall days in March:
5.4 days - Average snowfall days in April:
2 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:
0.5 days - Average snowfall days in November:
3.4 days - Average snowfall days in December:
9.3 days
The month with the highest number of snowfall days is January (11.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Arnold, 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 2min
- Average daylight in July:
15h and 0min - Average daylight in August:
13h and 5min - Average daylight in September:
12h and 3min - Average daylight in October:
11h and 0min - 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 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in January:
4h and 0min - Average sunshine in February:
4h and 4min - Average sunshine in March:
6h and 0min - Average sunshine in April:
8h and 0min - Average sunshine in May:
8h and 4min - Average sunshine in June:
9h and 4min
- Average sunshine in July:
10h and 2min - Average sunshine in August:
9h and 4min - Average sunshine in September:
9h and 1min - Average sunshine in October:
5h and 4min - Average sunshine in November:
5h and 3min - Average sunshine in December:
4h and 3min
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 0min).
Average sunshine days
Arnold, IA
- Average sunshine days in January:
16.9 days - Average sunshine days in February:
16.6 days - Average sunshine days in March:
16 days - Average sunshine days in April:
12.6 days - Average sunshine days in May:
12.2 days - Average sunshine days in June:
10.5 days
- Average sunshine days in July:
13.7 days - Average sunshine days in August:
15.7 days - Average sunshine days in September:
16.4 days - Average sunshine days in October:
17.8 days - Average sunshine days in November:
18.6 days - Average sunshine days in December:
17.8 days
The month with the most sunshine days is November (18.6 days).
The month with the least sunshine days is June (10.5 days).
Average UV index
Arnold, IA
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover
Arnold, IA
The month with the most cloud cover is January (Cloud cover 57).
The months with the least cloud cover are July and September (Cloud cover 30).
Average visibility
Arnold, IA
The months with the highest visibility are February, March, April, May, June, August, September, October, November and December (6mi).
The months with the lowest visibility are January and July (5mi).
Arnold, Iowa, USA
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