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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 Irwin, Iowa, with temperature in the range of an average low of 14.5°F (-9.7°C) and an average high of 27.3°F (-2.6°C). January, known for its average high temperature of 27.3°F (-2.6°C) and an average low temperature of 14.5°F (-9.7°C), is the coldest month. Weather in January »
Weather in February
February, the last month of the winter in Irwin, is also a subzero cold month, with an average temperature ranging between max 31.5°F (-0.3°C) and min 18°F (-7.8°C). Irwin experiences a subtle adjustment in high-temperatures to a still freezing cold 31.5°F (-0.3°C) with the onset of February, maintaining near parity with January's 27.3°F (-2.6°C). Weather in February »
Weather in March
March, the first month of the spring in Irwin, is a chilly month, with an average temperature ranging between min 31.8°F (-0.1°C) and max 46.9°F (8.3°C). Irwin's transition into March is marked by a clear rise in the average high-temperature, advancing from a subzero cold 31.5°F (-0.3°C) in February to a chilly 46.9°F (8.3°C). Weather in March »
Weather in April
April in Irwin, Iowa, is a mild spring month, with an average temperature varying between 58.8°F (14.9°C) and 42.3°F (5.7°C). April's arrival sees a rise in the average high-temperature, jumping from March's frosty 46.9°F (8.3°C) to a mild 58.8°F (14.9°C). Weather in April »
Weather in May
The last month of the spring, May, is an agreeable month in Irwin, Iowa, with an average temperature fluctuating between 69.4°F (20.8°C) and 52.9°F (11.6°C). May indicates a change in the average high-temperature, moving up from a refreshing 58.8°F (14.9°C) in April to a pleasant 69.4°F (20.8°C). Weather in May »
Weather in June
The first month of the summer, June, is a warm month in Irwin, Iowa, with temperature in the range of an average low of 63°F (17.2°C) and an average high of 79.3°F (26.3°C). Irwin's weather shows a temperature rise with the arrival of June, moving from a pleasant 69.4°F (20.8°C) in May to a warm 79.3°F (26.3°C). Weather in June »
Weather in July
July, like June, in Irwin, Iowa, is another warm summer month, with an average temperature varying between 64.9°F (18.3°C) and 82.6°F (28.1°C). Irwin's warmest month, July, registers temperatures that range from a high of 82.6°F (28.1°C) to a low of 64.9°F (18.3°C). The heat index in July is computed to be a tropical 89.6°F (32°C). Weather in July »
Weather in August
August, the last month of the summer in Irwin, is another warm month, with an average temperature varying between 62.1°F (16.7°C) and 80.2°F (26.8°C). The transition into August is marked with an average high-temperature of a still moderately hot 80.2°F (26.8°C), showing an insignificant shift from July's 82.6°F (28.1°C). Weather in August »
Weather in September
The first month of the autumn, September, is also a moderately hot month in Irwin, Iowa, with an average temperature fluctuating between 75°F (23.9°C) and 55.9°F (13.3°C). The average high-temperature for September is a still moderately hot 75°F (23.9°C), closely aligning with the temperature of the preceding month. Weather in September »
Weather in October
October, the same as September, in Irwin, Iowa, is another mild autumn month, with an average temperature fluctuating between 59.7°F (15.4°C) and 44.1°F (6.7°C). Irwin in October showcases a distinct temperature shift, moving from an average high of a warm 75°F (23.9°C) in September to a refreshing 59.7°F (15.4°C). Weather in October »
Weather in November
November, the last month of the autumn in Irwin, is also a frosty month, with an average temperature ranging between min 32.2°F (0.1°C) and max 46.2°F (7.9°C). Irwin's November weather comes with a decrease in average high-temperatures, moving from a refreshing 59.7°F (15.4°C) in October to a chilly 46.2°F (7.9°C). Weather in November »
Weather in December
The first month of the winter, December, is also an icy month in Irwin, Iowa, with an average temperature fluctuating between 32.2°F (0.1°C) and 20.8°F (-6.2°C). Irwin's December weather shows a moderate shift in high-temperatures, falling from November's chilly 46.2°F (7.9°C) to a cold 32.2°F (0.1°C). Weather in December »
[Resources]Frequently asked questions
What part of the year is the coldest in Irwin?
January, having an average high-temperature of 27.3°F (-2.6°C) and an average low-temperature of 14.5°F (-9.7°C), is the coldest month in Irwin, Iowa.
What is the most humid month in Irwin?
With an average relative humidity of 83%, January is the most humid month in Irwin.
What is the driest month in Irwin?
January is the month with the least rainfall in Irwin. Rain falls for 3.2 days and accumulates 0.43" (11mm) of precipitation.
How much does it rain in Irwin?
In Irwin, Iowa, during the entire year, the rain falls for 113.5 days and collects up to 15.71" (399mm) of precipitation.
When does it snow in Irwin?
Months with snowfall in Irwin are January through May, October through December.
How many days does it snow in Irwin?
In Irwin, Iowa, during the entire year, snow falls for 31.5 days and aggregates up to 7.13" (181mm) of snow.
What is the month with the least sunshine in Irwin?
With an average of 4.5h of sunshine, January has the least sunshine of the year.
What is the month with the lowest UV index in Irwin?
The months with the lowest UV index in Irwin are January, February, October through December, with an average maximum UV index of 2.
What is the snowiest month in Irwin?
The month with the most snowfall in Irwin is February, when snow falls for 7.3 days and typically aggregates up to 2.09" (53mm) of snow.
When is Daylight Saving Time (DST) in Irwin?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Irwin, Iowa, 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 Irwin?
The month with the most rainfall is June, when the rain falls for 16.1 days and typically aggregates up to 2.64" (67mm) of precipitation.
When it does not snow in Irwin?
In Irwin, snow does not fall in June through September.
When are the longest days in Irwin?
The month with the longest days is June, with an average of 15h and 12min of daylight.
What is the month with the highest UV index in Irwin?
June through August, with an average maximum UV index of 6, are months with the highest UV index.
What is the warmest month in Irwin?
With average high and low temperatures of 82.6°F (28.1°C) and 64.9°F (18.3°C) respectively, July is Irwin's warmest month.
What month has the most sunshine in Irwin?
July has the most sunshine of the year, with an average of 10.4h of sunshine.
What is the least humid month in Irwin?
With an average relative humidity of 68%, October is the least humid month.
What is the month with the shortest days in Irwin?
December has the shortest days of the year in Irwin, Iowa, with an average of 9h and 12min of daylight.
Average temperature
Irwin, IA
The warmest month (with the highest average high temperature) is July (82.6°F).
The month with the lowest average high temperature is January (27.3°F).
The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (14.5°F).
Average pressure
Irwin, IA
- Average pressure in January:
30.16"Hg - Average pressure in February:
30.14"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:
29.87"Hg
- Average pressure in July:
29.95"Hg - Average pressure in August:
29.96"Hg - Average pressure in September:
30"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 (29.87"Hg).
Average wind speed
Irwin, IA
- Average wind speed in January:
10.6mph - Average wind speed in February:
10.6mph - Average wind speed in March:
10.7mph - Average wind speed in April:
10.9mph - Average wind speed in May:
9.3mph - Average wind speed in June:
8.5mph
- Average wind speed in July:
7.2mph - Average wind speed in August:
7.4mph - Average wind speed in September:
8.5mph - Average wind speed in October:
9.7mph - Average wind speed in November:
10.4mph - Average wind speed in December:
10.1mph
The windiest month (with the highest average wind speed) is April (10.9mph).
The calmest month (with the lowest average wind speed) is July (7.2mph).
Average humidity
Irwin, IA
The month with the highest relative humidity is January (83%).
The month with the lowest relative humidity is October (68%).
Average rainfall
Irwin, IA
- Average rainfall in January:
0.43" - Average rainfall in February:
0.47" - Average rainfall in March:
0.91" - Average rainfall in April:
1.26" - Average rainfall in May:
2.6" - Average rainfall in June:
2.64"
- Average rainfall in July:
1.5" - Average rainfall in August:
1.93" - Average rainfall in September:
1.65" - Average rainfall in October:
1.06" - Average rainfall in November:
0.55" - Average rainfall in December:
0.71"
The wettest month (with the highest rainfall) is June (2.64").
The driest month (with the least rainfall) is January (0.43").
Average rainfall days
Irwin, IA
- Average rainfall days in January:
3.2 days - Average rainfall days in February:
2.8 days - Average rainfall days in March:
8.8 days - Average rainfall days in April:
12.8 days - Average rainfall days in May:
15.7 days - Average rainfall days in June:
16.1 days
- Average rainfall days in July:
13.1 days - Average rainfall days in August:
12.3 days - Average rainfall days in September:
10.5 days - Average rainfall days in October:
8.5 days - Average rainfall days in November:
5.5 days - Average rainfall days in December:
4.2 days
The month with the highest number of rainy days is June (16.1 days).
The month with the least rainy days is February (2.8 days).
Average snowfall
Irwin, IA
- Average snowfall in January:
1.57" - Average snowfall in February:
2.09" - Average snowfall in March:
1.22" - Average snowfall in April:
0.28" - Average snowfall in May:
0.16" - Average snowfall in June:
0"
The month with the highest snowfall is February (2.09").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Irwin, IA
- Average snowfall days in January:
8.3 days - Average snowfall days in February:
7.3 days - Average snowfall days in March:
4.8 days - Average snowfall days in April:
1 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:
0.7 days - Average snowfall days in November:
3 days - Average snowfall days in December:
6.1 days
The month with the highest number of snowfall days is January (8.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Irwin, IA
- Average daylight in January:
9h and 4min - 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 3min - Average sunshine in February:
5h and 1min - 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:
9h and 5min
- Average sunshine in July:
10h and 2min - Average sunshine in August:
9h and 5min - Average sunshine in September:
9h and 1min - Average sunshine in October:
5h and 5min - 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 24min).
The month with the least sunshine is January (Average sunshine: 4h and 30min).
Average sunshine days
Irwin, IA
- Average sunshine days in January:
20.1 days - Average sunshine days in February:
17.8 days - Average sunshine days in March:
17.9 days - Average sunshine days in April:
15 days - Average sunshine days in May:
12.8 days - Average sunshine days in June:
11.4 days
- Average sunshine days in July:
12.7 days - Average sunshine days in August:
15.5 days - Average sunshine days in September:
16.5 days - Average sunshine days in October:
20.5 days - Average sunshine days in November:
21.3 days - Average sunshine days in December:
21.6 days
The month with the most sunshine days is December (21.6 days).
The month with the least sunshine days is June (11.4 days).
Average UV index
Irwin, IA
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, October, November and December (UV index 2).
Average cloud cover
Irwin, IA
The month with the most cloud cover is January (Cloud cover 52).
The month with the least cloud cover is July (Cloud cover 27).
Average visibility
Irwin, 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).
Irwin, Iowa, USA
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