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 Diagonal, Iowa, is a freezing cold winter month, with an average temperature varying between 30.6°F (-0.8°C) and 16.9°F (-8.4°C). With an average high-temperature of 30.6°F (-0.8°C) and an average low-temperature of 16.9°F (-8.4°C), January is the coldest month. Weather in January »
Weather in February
February, the last month of the winter in Diagonal, is a cold 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). In Diagonal, the average high-temperature in February is almost the same as in January - a cold 34.2°F (1.2°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 high of 48.7°F (9.3°C) and an average low of 33.3°F (0.7°C). In March, the average high-temperature increases considerably from a wintry 34.2°F (1.2°C) in February to a chilly 48.7°F (9.3°C). Weather in March »
Weather in April
April is a moderate spring month in Diagonal, Iowa, with an average temperature ranging between max 60.4°F (15.8°C) and min 42.6°F (5.9°C). In April, the average high-temperature rises from a frosty 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 an agreeable month, with an average temperature ranging between min 53.1°F (11.7°C) and max 69.6°F (20.9°C). In May, the average high-temperature rises from a moderate 60.4°F (15.8°C) in April to an agreeable 69.6°F (20.9°C). Weather in May »
Weather in June
The first month of the summer, June, is a warm month in Diagonal, Iowa, with an average temperature fluctuating between 79.9°F (26.6°C) and 63.3°F (17.4°C). In Diagonal, the average high-temperature in June rises from a pleasant 69.6°F (20.9°C) in May to a warm 79.9°F (26.6°C). Weather in June »
Weather in July
July, the same as June, is a moderately hot summer month in Diagonal, Iowa, with temperature in the range of an average low of 66°F (18.9°C) and an average high of 83.5°F (28.6°C). July is the warmest month, with an average high-temperature of 83.5°F (28.6°C) and an average low-temperature of 66°F (18.9°C). In July, the average heat index is computed to be a tropical 93.2°F (34°C). Weather in July »
Weather in August
The last month of the summer, August, is another warm month in Diagonal, Iowa, with an average temperature ranging between max 81.7°F (27.6°C) and min 63.3°F (17.4°C). In August, the average high-temperature is essentially the same as in July - a still warm 81.7°F (27.6°C). Weather in August »
Weather in September
The first month of the autumn, September, is still a warm month in Diagonal, Iowa, with an average temperature ranging between min 56.3°F (13.5°C) and max 75.9°F (24.4°C). In September, the average high-temperature marginally drops from 81.7°F (27.6°C) in August to a still moderately hot 75.9°F (24.4°C). Weather in September »
Weather in October
October, the same as September, is another enjoyable autumn month in Diagonal, Iowa, with an average temperature varying between 61.5°F (16.4°C) and 44.6°F (7°C). In October, the average high-temperature declines considerably from a warm 75.9°F (24.4°C) in September to a comfortable 61.5°F (16.4°C). Weather in October »
Weather in November
The last month of the autumn, November, is also a frosty month in Diagonal, Iowa, with an average temperature fluctuating between 33.1°F (0.6°C) and 48.4°F (9.1°C). In Diagonal, the average high-temperature in November decreases from a comfortable 61.5°F (16.4°C) in October to a frosty 48.4°F (9.1°C). Weather in November »
Weather in December
The first month of the winter, December, is still a cold month in Diagonal, Iowa, with an average temperature varying between 35.2°F (1.8°C) and 23.2°F (-4.9°C). In December, the average high-temperature decreases from a chilly 48.4°F (9.1°C) in November to a cold 35.2°F (1.8°C). Weather in December »
[Resources]FAQ
What is the coldest month in Diagonal?
January is the coldest month, with an average high-temperature of 30.6°F (-0.8°C) and an average low-temperature of 16.9°F (-8.4°C).
How many days does it rain in Diagonal?
Throughout the year, in Diagonal, Iowa, there are 126.9 rainfall days, and 22.6" (574mm) of precipitation is accumulated.
When does it snow in Diagonal?
Months with snowfall in Diagonal are January through May, October through December.
When does it snow the most in Diagonal?
The month with the most snowfall in Diagonal is January, when snow falls for 8.4 days and typically aggregates up to 3.54" (90mm) of snow.
How many days does it snow in Diagonal?
In Diagonal, during the entire year, snow falls for 28.7 days and aggregates up to 11.85" (301mm) of snow.
What is the month with the least sunshine in Diagonal?
The month with the least sunshine is January, with an average of 4.6h of sunshine.
When is the lowest UV index in Diagonal?
January is the month with the lowest UV index in Diagonal, with an average maximum UV index of 1.
What is the driest month in Diagonal?
The months with the least rainfall in Diagonal 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 12. 2023, 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 5. 2023, at 2:00 am, and the time zone reverts from CDT to CST.
What is the most humid month in Diagonal?
June is the most humid month, with an average relative humidity of 82%.
What is the rainiest month in Diagonal?
The month with the most rainfall in Diagonal, Iowa, 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?
June through September are months without snowfall in Diagonal.
When are the longest days in Diagonal?
June has the longest days of the year in Diagonal, Iowa, with an average of 15h and 4min of daylight.
What is the month 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.
What is the warmest month in Diagonal?
July is the warmest month, with an average high-temperature of 83.5°F (28.6°C) and an average low-temperature of 66°F (18.9°C).
What month has the most sunshine in Diagonal?
The month with the most sunshine in Diagonal is July, 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.
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 38min - Average daylight in February:
10h and 40min - Average daylight in March:
11h and 58min - Average daylight in April:
13h and 20min - Average daylight in May:
14h and 29min - Average daylight in June:
15h and 4min
- Average daylight in July:
14h and 46min - Average daylight in August:
13h and 45min - Average daylight in September:
12h and 27min - Average daylight in October:
11h and 6min - Average daylight in November:
9h and 55min - Average daylight in December:
9h and 18min
The month with the longest days is June (Average daylight: 15h and 4min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in January:
4h and 36min - Average sunshine in February:
5h and 12min - Average sunshine in March:
6h and 12min - Average sunshine in April:
8h and 12min - Average sunshine in May:
8h and 30min - Average sunshine in June:
9h and 42min
- Average sunshine in July:
10h and 18min - Average sunshine in August:
9h and 54min - Average sunshine in September:
9h and 18min - Average sunshine in October:
5h and 48min - Average sunshine in November:
5h and 42min - 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).
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