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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 another subzero cold winter month in Barnum, Iowa, with an average temperature varying between 25°F (-3.9°C) and 12.4°F (-10.9°C). January is the month when Barnum experiences its coldest temperatures, averaging a high of 25°F (-3.9°C) and a low of 12.4°F (-10.9°C). Weather in January »
Weather in February
February, the last month of the winter in Barnum, is another freezing cold month, with an average temperature varying between 15.6°F (-9.1°C) and 28.8°F (-1.8°C). The arrival of February is marked by an average high-temperature of a still subzero cold 28.8°F (-1.8°C), bearing a close resemblance to January. Weather in February »
Weather in March
March, the first month of the spring in Barnum, is a frosty month, with an average temperature varying between 44.2°F (6.8°C) and 30.6°F (-0.8°C). As Barnum welcomes March, there is a noticeable shift in the average high-temperature, escalating from February's subzero cold 28.8°F (-1.8°C) to a frosty 44.2°F (6.8°C). Weather in March »
Weather in April
April is a moderate spring month in Barnum, Iowa, with an average temperature fluctuating between 57.7°F (14.3°C) and 41.4°F (5.2°C). In Barnum, the average high-temperature in April increases from a chilly 44.2°F (6.8°C) in March to a mild 57.7°F (14.3°C). Weather in April »
Weather in May
May, the last month of the spring in Barnum, is a pleasant month, with an average temperature fluctuating between 52.9°F (11.6°C) and 69.3°F (20.7°C). With the onset of May, Barnum's average high-temperature experiences a rise, moving from April's moderate 57.7°F (14.3°C) to a pleasant 69.3°F (20.7°C). Weather in May »
Weather in June
The first month of the summer, June, is a moderately hot month in Barnum, Iowa, with an average temperature ranging between min 62.4°F (16.9°C) and max 78.4°F (25.8°C). The shift into June is characterized by a rise in the average high-temperature, transitioning from May's pleasant 69.3°F (20.7°C) to a moderately hot 78.4°F (25.8°C). Weather in June »
Weather in July
July, like June, in Barnum, Iowa, is a moderately hot summer month, with temperature in the range of an average high of 81°F (27.2°C) and an average low of 63.7°F (17.6°C). The warmest month is July, with an average high-temperature of 81°F (27.2°C) and an average low-temperature of 63.7°F (17.6°C). For July, the heat index is calculated to be a hot 86°F (30°C). Weather in July »
Weather in August
The last month of the summer, August, is also a moderately hot month in Barnum, Iowa, with temperature in the range of an average low of 61.2°F (16.2°C) and an average high of 79.2°F (26.2°C). Entering August, the average high-temperature is recorded at a still warm 79.2°F (26.2°C), exhibiting a minimal shift from July's 81°F (27.2°C). Weather in August »
Weather in September
The first month of the autumn, September, is also a moderately hot month in Barnum, Iowa, with an average temperature ranging between max 74.1°F (23.4°C) and min 54.9°F (12.7°C). Transitioning into September, Barnum experiences an average high-temperature of a still moderately hot 74.1°F (23.4°C), marking a minor shift from the preceding month. Weather in September »
Weather in October
October, like September, is another mild autumn month in Barnum, Iowa, with temperature in the range of an average high of 58.8°F (14.9°C) and an average low of 43.7°F (6.5°C). Barnum's weather experiences a significant temperature drop with the arrival of October, falling from a moderately hot 74.1°F (23.4°C) in September to a mild 58.8°F (14.9°C). Weather in October »
Weather in November
November, the last month of the autumn in Barnum, is another chilly month, with an average temperature fluctuating between 44.8°F (7.1°C) and 31.5°F (-0.3°C). November indicates a shift in the average high-temperature, from October's mild 58.8°F (14.9°C) to a chilly 44.8°F (7.1°C). Weather in November »
Weather in December
The first month of the winter, December, is still a freezing cold month in Barnum, Iowa, with an average temperature fluctuating between 19.4°F (-7°C) and 30°F (-1.1°C). December is marked by a distinct decrease in the average high-temperature, falling from a frosty 44.8°F (7.1°C) in November to a subzero cold 30°F (-1.1°C). Weather in December »
Updated: Jul 19, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the coldest months?
January is the coldest month, exhibiting average temperatures of 25°F (-3.9°C) at the peak and 12.4°F (-10.9°C) at the base.
What is the most humid month?
The most humid month is January, with an average relative humidity of 85%.
What is the driest month?
The month with the least rainfall is January, when the rain falls for 2.3 days and typically collects 0.24" (6mm) of precipitation.
How many days does it rain?
Throughout the year, there are 84.6 rainfall days, and 7.91" (201mm) of precipitation is accumulated.
When does it snow?
January through April, October through December are months with snowfall.
How much does it snow in Barnum?
In Barnum, during the entire year, snow falls for 29.4 days and aggregates up to 3.62" (92mm) of snow.
What is the month with the least sunshine?
January has the least sunshine of the year, with an average of 4h of sunshine.
What are the months with the lowest UV index?
January and February, with an average maximum UV index of 1, are months with the lowest UV index.
What is the snowiest month in Barnum?
The month with the most snowfall in Barnum is February, when snow falls for 7.9 days and typically aggregates up to 1.38" (35mm) of snow.
When is Daylight Saving Time (DST)?
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 least humid month?
April and October, with an average relative humidity of 68%, are the least humid months.
What is the rainiest month?
The month with the most rainfall is May, when the rain falls for 11.8 days and typically aggregates up to 1.34" (34mm) of precipitation.
When it does not snow in Barnum?
May through September are months without snowfall.
When are the longest days?
With an average of 15h and 12min of daylight, June has the longest days of the year in Barnum.
When is the highest UV index?
The months with the highest UV index in Barnum are June and July, with an average maximum UV index of 6.
What is the warmest month?
July, recognised by an average high temperature of 81°F (27.2°C) and a low of 63.7°F (17.6°C), is Barnum's warmest month.
What month has the most sunshine?
July has the most sunshine of the year in Barnum, with an average of 10.1h of sunshine.
What is the month with the shortest days in Barnum?
The month with the shortest days is December, with an average of 9h and 6min of daylight.
Average temperature
Barnum, IA
The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (25°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 (12.4°F).
Average pressure
Barnum, IA
- Average pressure in January:
30.16"Hg - Average pressure in February:
30.15"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 (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed
Barnum, IA
- Average wind speed in January:
10.8mph - Average wind speed in February:
10.7mph - Average wind speed in March:
10.6mph - Average wind speed in April:
11.1mph - Average wind speed in May:
9.5mph - Average wind speed in June:
8.6mph
- Average wind speed in July:
7.3mph - Average wind speed in August:
7.4mph - Average wind speed in September:
8.5mph - Average wind speed in October:
10mph - Average wind speed in November:
10.6mph - Average wind speed in December:
10.4mph
The windiest month (with the highest average wind speed) is April (11.1mph).
The calmest month (with the lowest average wind speed) is July (7.3mph).
Average humidity
Barnum, IA
The month with the highest relative humidity is January (85%).
The months with the lowest relative humidity are April and October (68%).
Average rainfall
Barnum, IA
- Average rainfall in January:
0.24" - Average rainfall in February:
0.31" - Average rainfall in March:
0.35" - Average rainfall in April:
0.83" - Average rainfall in May:
1.34" - Average rainfall in June:
1.1"
- Average rainfall in July:
0.75" - Average rainfall in August:
0.79" - Average rainfall in September:
0.79" - Average rainfall in October:
0.67" - Average rainfall in November:
0.31" - Average rainfall in December:
0.43"
The wettest month (with the highest rainfall) is May (1.34").
The driest month (with the least rainfall) is January (0.24").
Average rainfall days
Barnum, IA
- Average rainfall days in January:
2.3 days - Average rainfall days in February:
1.9 days - Average rainfall days in March:
6.7 days - Average rainfall days in April:
9.8 days - Average rainfall days in May:
11.8 days - Average rainfall days in June:
12 days
- Average rainfall days in July:
9 days - Average rainfall days in August:
10.1 days - Average rainfall days in September:
8.8 days - Average rainfall days in October:
5.7 days - Average rainfall days in November:
4 days - Average rainfall days in December:
2.5 days
The month with the highest number of rainy days is June (12 days).
The month with the least rainy days is February (1.9 days).
Average snowfall
Barnum, IA
The month with the highest snowfall is February (1.38").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days
Barnum, IA
- Average snowfall days in January:
7.5 days - Average snowfall days in February:
7.9 days - Average snowfall days in March:
4 days - Average snowfall days in April:
1.1 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:
0.7 days - Average snowfall days in November:
2.5 days - Average snowfall days in December:
5.5 days
The month with the highest number of snowfall days is February (7.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Barnum, 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 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 12min).
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:
5h and 5min - Average sunshine in April:
7h and 5min - Average sunshine in May:
8h and 3min - Average sunshine in June:
9h and 2min
- Average sunshine in July:
10h and 1min - Average sunshine in August:
9h and 3min - Average sunshine in September:
9h and 0min - Average sunshine in October:
5h and 3min - Average sunshine in November:
5h and 2min - Average sunshine in December:
4h and 4min
The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).
Average sunshine days
Barnum, IA
- Average sunshine days in January:
23.8 days - Average sunshine days in February:
20.7 days - Average sunshine days in March:
21.6 days - Average sunshine days in April:
18 days - Average sunshine days in May:
16.5 days - Average sunshine days in June:
15.5 days
- Average sunshine days in July:
17.2 days - Average sunshine days in August:
18.8 days - Average sunshine days in September:
19.1 days - Average sunshine days in October:
22.6 days - Average sunshine days in November:
23.6 days - Average sunshine days in December:
24.3 days
The month with the most sunshine days is December (24.3 days).
The month with the least sunshine days is June (15.5 days).
Average UV index
Barnum, IA
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January and February (UV index 1).
Average cloud cover
Barnum, 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 31).
Average visibility
Barnum, 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).
Barnum, Iowa, USA
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