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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 Diagonal, Iowa, with an average temperature ranging between min 16.9°F (-8.4°C) and max 30.6°F (-0.8°C). The coldest time of the year is January, with temperatures averaging a high of 30.6°F (-0.8°C) and a low of 16.9°F (-8.4°C). Weather in January »
Weather in February
February, the last month of the winter in Diagonal, is a wintry month, with temperature in the range of an average high of 34.2°F (1.2°C) and an average low of 20.1°F (-6.6°C). Diagonal experiences an average high-temperature of a cold 34.2°F (1.2°C) with the onset of February, subtly varied from January's 30.6°F (-0.8°C). Weather in February »
Weather in March
The first month of the spring, March, is a frosty month in Diagonal, Iowa, with temperature in the range of an average low of 33.3°F (0.7°C) and an average high of 48.7°F (9.3°C). The start of March brings a distinct shift in the average high-temperature, escalating from February's icy 34.2°F (1.2°C) to a chilly 48.7°F (9.3°C). Weather in March »
Weather in April
April in Diagonal, Iowa, is a mild spring month, with temperature in the range of an average low of 42.6°F (5.9°C) and an average high of 60.4°F (15.8°C). The onset of April brings a rise in the average high-temperature, elevating from a chilly 48.7°F (9.3°C) in March to a mild 60.4°F (15.8°C). Weather in April »
Weather in May
May, the last month of the spring in Diagonal, is a pleasant month, with an average temperature fluctuating between 53.1°F (11.7°C) and 69.6°F (20.9°C). May's arrival coincides with a rise in the average high-temperature, moving from April's refreshing 60.4°F (15.8°C) to a pleasant 69.6°F (20.9°C). Weather in May »
Weather in June
The first month of the summer, June, is a moderately hot month in Diagonal, Iowa, with temperature in the range of an average high of 79.9°F (26.6°C) and an average low of 63.3°F (17.4°C). June brings a rise in the average high-temperature, transitioning from May's pleasant 69.6°F (20.9°C) to a warm 79.9°F (26.6°C). Weather in June »
Weather in July
July, like June, in Diagonal, Iowa, is another warm summer month, with an average temperature varying between 66°F (18.9°C) and 83.5°F (28.6°C). July is the month when Diagonal experiences its warmest temperatures, averaging a high of 83.5°F (28.6°C) and a low of 66°F (18.9°C). The heat index value during July is computed to be a tropical 93.2°F (34°C). Weather in July »
Weather in August
August, the last month of the summer in Diagonal, is another warm month, with an average temperature fluctuating between 63.3°F (17.4°C) and 81.7°F (27.6°C). The commencement of August introduces an average high-temperature of a still moderately hot 81.7°F (27.6°C), closely mirroring the preceding month. Weather in August »
Weather in September
The first month of the autumn, September, is also a moderately hot month in Diagonal, Iowa, with an average temperature varying between 56.3°F (13.5°C) and 75.9°F (24.4°C). Diagonal observes a small decrease in the average high-temperature with the arrival of September, falling from August's 81.7°F (27.6°C) to a still warm 75.9°F (24.4°C). Weather in September »
Weather in October
October, the same as September, is another refreshing autumn month in Diagonal, Iowa, with an average temperature fluctuating between 61.5°F (16.4°C) and 44.6°F (7°C). A decrease in the average high-temperature marks October, falling from September's warm 75.9°F (24.4°C) to an enjoyable 61.5°F (16.4°C). Weather in October »
Weather in November
November, the last month of the autumn in Diagonal, is also a frosty month, with an average temperature fluctuating between 48.4°F (9.1°C) and 33.1°F (0.6°C). As October shifts into November, a slight alteration in temperatures is observed, with average highs reducing from an enjoyable 61.5°F (16.4°C) to a frosty 48.4°F (9.1°C). Weather in November »
Weather in December
December, the first month of the winter in Diagonal, is also a wintry month, with temperature in the range of an average low of 23.2°F (-4.9°C) and an average high of 35.2°F (1.8°C). The arrival of December indicates a decrease in the average high-temperature, moving from a chilly 48.4°F (9.1°C) in November to a wintry 35.2°F (1.8°C). Weather in December »
[Resources]Frequently asked questions
What time of the year is the coldest in Diagonal?
In Diagonal, January is the coldest month, with temperatures averaging a high of 30.6°F (-0.8°C) and a low of 16.9°F (-8.4°C).
How much does it rain in Diagonal?
In Diagonal, during the entire year, the rain falls for 126.9 days and collects up to 22.6" (574mm) of precipitation.
When does it snow in Diagonal?
January through May, October through December are months with snowfall in Diagonal, Iowa.
When does it snow the most in Diagonal?
The month with the most snowfall is January, when snow falls for 8.4 days and typically aggregates up to 3.54" (90mm) of snow.
How much does it snow in Diagonal?
Throughout the year, in Diagonal, there are 28.7 snowfall days, and 11.85" (301mm) of snow is accumulated.
What is the month with the least sunshine in Diagonal?
January has the least sunshine of the year, with an average of 4.6h of sunshine.
When is the lowest UV index in Diagonal?
With an average maximum UV index of 1, January is the month with the lowest UV index in Diagonal.
What is the driest month in Diagonal?
The months with the least rainfall in Diagonal, Iowa, are February and December Rain falls for 4.7 days and accumulates 0.71" (18mm) of rain.
When is Daylight Saving Time (DST) in Diagonal?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Diagonal, 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 most humid month in Diagonal?
The most humid month in Diagonal, Iowa, is June, with an average relative humidity of 82%.
What is the wettest month in Diagonal?
The month with the most rainfall in Diagonal is June, when the rain falls for 16.1 days and typically aggregates up to 3.86" (98mm) of precipitation.
When it does not snow in Diagonal?
In Diagonal, snow does not fall in June through September.
When are the longest days in Diagonal?
With an average of 15h and 6min of daylight, June has the longest days of the year.
What are the months with the highest UV index in Diagonal?
June through August, with an average maximum UV index of 6, are months with the highest UV index in Diagonal, Iowa.
What part of the year is the hottest in Diagonal?
The highest temperatures in Diagonal are recorded in July, with averages reaching a high of 83.5°F (28.6°C) and a low of 66°F (18.9°C).
What month has the most sunshine in Diagonal?
July has the most sunshine of the year in Diagonal, Iowa, with an average of 10.3h of sunshine.
What is the least humid month in Diagonal?
With an average relative humidity of 71%, October is the least humid month in Diagonal.
What is the month with the shortest days in Diagonal?
With an average of 9h and 18min of daylight, December has the shortest days of the year in Diagonal, Iowa.
Average temperature
Diagonal, IA
The warmest month (with the highest average high temperature) is July (83.5°F).
The month with the lowest average high temperature is January (30.6°F).
The month with the highest average low temperature is July (66°F).
The coldest month (with the lowest average low temperature) is January (16.9°F).
Average pressure
Diagonal, 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:
29.93"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:
30.01"Hg - Average pressure in November:
30.09"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 (29.88"Hg).
Average wind speed
Diagonal, IA
- Average wind speed in January:
10.3mph - Average wind speed in February:
10.3mph - Average wind speed in March:
10.3mph - Average wind speed in April:
10.2mph - Average wind speed in May:
8.5mph - Average wind speed in June:
7.9mph
- Average wind speed in July:
6.8mph - Average wind speed in August:
6.8mph - Average wind speed in September:
7.8mph - Average wind speed in October:
9.3mph - Average wind speed in November:
10.1mph - Average wind speed in December:
9.9mph
The windiest months (with the highest average wind speed) are January, February and March (10.3mph).
The calmest months (with the lowest average wind speed) are July and August (6.8mph).
Average humidity
Diagonal, IA
The month with the highest relative humidity is June (82%).
The month with the lowest relative humidity is October (71%).
Average rainfall
Diagonal, IA
- Average rainfall in January:
0.75" - Average rainfall in February:
0.71" - Average rainfall in March:
1.54" - Average rainfall in April:
1.93" - Average rainfall in May:
3.46" - Average rainfall in June:
3.86"
- Average rainfall in July:
2.32" - Average rainfall in August:
2.32" - Average rainfall in September:
2.24" - Average rainfall in October:
1.65" - Average rainfall in November:
1.1" - Average rainfall in December:
0.71"
The wettest month (with the highest rainfall) is June (3.86").
The driest months (with the least rainfall) are February and December (0.71").
Average rainfall days
Diagonal, IA
- Average rainfall days in January:
4.1 days - Average rainfall days in February:
4.7 days - Average rainfall days in March:
10.1 days - Average rainfall days in April:
13.1 days - Average rainfall days in May:
17.8 days - Average rainfall days in June:
16.1 days
- Average rainfall days in July:
15.1 days - Average rainfall days in August:
13.3 days - Average rainfall days in September:
11 days - Average rainfall days in October:
9.5 days - Average rainfall days in November:
6.7 days - Average rainfall days in December:
5.4 days
The month with the highest number of rainy days is May (17.8 days).
The month with the least rainy days is January (4.1 days).
Average snowfall
Diagonal, IA
The month with the highest snowfall is January (3.54").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Diagonal, IA
- Average snowfall days in January:
8.4 days - Average snowfall days in February:
7.4 days - Average snowfall days in March:
3.6 days - Average snowfall days in April:
0.8 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:
0.8 days - Average snowfall days in November:
1.7 days - Average snowfall days in December:
5.8 days
The month with the highest number of snowfall days is January (8.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Diagonal, 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 3min - Average daylight in June:
15h and 1min
- Average daylight in July:
14h and 5min - Average daylight in August:
13h and 4min - 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 2min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in January:
4h and 4min - Average sunshine in February:
5h and 1min - Average sunshine in March:
6h and 1min - Average sunshine in April:
8h and 1min - Average sunshine in May:
8h and 3min - Average sunshine in June:
9h and 4min
- Average sunshine in July:
10h and 2min - Average sunshine in August:
9h and 5min - Average sunshine in September:
9h and 2min - Average sunshine in October:
5h and 5min - Average sunshine in November:
5h and 4min - Average sunshine in December:
5h and 0min
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 36min).
Average sunshine days
Diagonal, IA
- Average sunshine days in January:
20 days - Average sunshine days in February:
16.8 days - Average sunshine days in March:
15.8 days - Average sunshine days in April:
14.3 days - Average sunshine days in May:
10.6 days - Average sunshine days in June:
11.1 days
- Average sunshine days in July:
11.5 days - Average sunshine days in August:
14.5 days - Average sunshine days in September:
16.9 days - Average sunshine days in October:
19.2 days - Average sunshine days in November:
21.2 days - Average sunshine days in December:
20.5 days
The month with the most sunshine days is November (21.2 days).
The month with the least sunshine days is May (10.6 days).
Average UV index
Diagonal, IA
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is January (UV index 1).
Average cloud cover
Diagonal, IA
The month with the most cloud cover is January (Cloud cover 50).
The month with the least cloud cover is July (Cloud cover 28).
Average visibility
Diagonal, 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).
Diagonal, Iowa, USA
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