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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 Peterson, Iowa, is another subzero cold winter month, with temperature in the range of an average low of 12°F (-11.1°C) and an average high of 24.4°F (-4.2°C). January is the coldest month, with an average high-temperature of 24.4°F (-4.2°C) and an average low-temperature of 12°F (-11.1°C). Weather in January »
Weather in February
February, the last month of the winter in Peterson, is also a subzero cold month, with an average temperature ranging between min 15.3°F (-9.3°C) and max 28.2°F (-2.1°C). The transition from January to February sees average high-temperatures adjusting to a still subzero cold 28.2°F (-2.1°C), from a not significantly different 24.4°F (-4.2°C). Weather in February »
Weather in March
March, the first month of the spring in Peterson, is a frosty month, with an average temperature varying between 44.2°F (6.8°C) and 29.7°F (-1.3°C). With the onset of March, Peterson's average high-temperature experiences a noticeable rise, advancing from February's freezing cold 28.2°F (-2.1°C) to a chilly 44.2°F (6.8°C). Weather in March »
Weather in April
April is a mild spring month in Peterson, Iowa, with an average temperature varying between 56.8°F (13.8°C) and 40.3°F (4.6°C). Peterson in April experiences an increase in the average high-temperature, moving from March's chilly 44.2°F (6.8°C) to a refreshing 56.8°F (13.8°C). Weather in April »
Weather in May
The last month of the spring, May, is a pleasant month in Peterson, Iowa, with an average temperature fluctuating between 52.2°F (11.2°C) and 68.5°F (20.3°C). With the onset of May, Peterson's weather sees a temperature rise, transitioning from a moderate 56.8°F (13.8°C) in April to a pleasant 68.5°F (20.3°C). Weather in May »
Weather in June
June, the first month of the summer in Peterson, is a moderately hot month, with an average temperature ranging between max 77.9°F (25.5°C) and min 62.1°F (16.7°C). June's arrival sees a rise in the average high-temperature, jumping from May's pleasant 68.5°F (20.3°C) to a moderately hot 77.9°F (25.5°C). Weather in June »
Weather in July
July, the same as June, is a moderately hot summer month in Peterson, Iowa, with an average temperature ranging between min 64°F (17.8°C) and max 81.5°F (27.5°C). The warmest period tends to be July, when average temperatures fluctuate between a high of 81.5°F (27.5°C) and a low of 64°F (17.8°C). The heat index value for July is appraised at a tropical 87.8°F (31°C). Weather in July »
Weather in August
August, the last month of the summer in Peterson, is also a moderately hot month, with an average temperature ranging between max 79.3°F (26.3°C) and min 60.8°F (16°C). The weather during August records an average high-temperature of a still moderately hot 79.3°F (26.3°C), closely mirroring the preceding month. Weather in August »
Weather in September
September, the first month of the autumn in Peterson, is still a warm month, with an average temperature varying between 73.8°F (23.2°C) and 55°F (12.8°C). Start of September brings a slight shift in the average high-temperature, dipping a bit from August's warm 79.3°F (26.3°C) to a still moderately hot 73.8°F (23.2°C). Weather in September »
Weather in October
October, the same as September, in Peterson, Iowa, is a moderate autumn month, with an average temperature fluctuating between 57.9°F (14.4°C) and 43°F (6.1°C). As Peterson steps into October, a marked temperature drop is observed, with the average high-temperature reducing from September's moderately hot 73.8°F (23.2°C) to a mild 57.9°F (14.4°C). Weather in October »
Weather in November
The last month of the autumn, November, is another chilly month in Peterson, Iowa, with an average temperature ranging between max 44.1°F (6.7°C) and min 31.3°F (-0.4°C). November weather is marked by a drop in the average high-temperature, falling from a moderate 57.9°F (14.4°C) in October to a frosty 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 Peterson, Iowa, with an average temperature fluctuating between 29.1°F (-1.6°C) and 19°F (-7.2°C). As Peterson steps into December, a marked temperature drop is observed, with the average high-temperature reducing from November's chilly 44.1°F (6.7°C) to a subzero cold 29.1°F (-1.6°C). Weather in December »
Updated: Jun 15, 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 month is the coldest?
The coldest time of the year is January, with temperatures averaging a high of 24.4°F (-4.2°C) and a low of 12°F (-11.1°C).
What is the most humid month?
January is the most humid month, with an average relative humidity of 86%.
What is the driest month in Peterson?
January is the month with the least rainfall. Rain falls for 3.6 days and accumulates 0.55" (14mm) of precipitation.
How much does it rain in Peterson?
Throughout the year, there are 117 rainfall days, and 19.84" (504mm) of precipitation is accumulated.
When does it snow?
Months with snowfall are January through May, October through December.
How much does it snow?
In Peterson, during the entire year, snow falls for 36.4 days and aggregates up to 10.67" (271mm) of snow.
What is the month with the least sunshine?
January has the least sunshine of the year, with an average of 4.1h of sunshine.
What is the month with the lowest UV index in Peterson?
With an average maximum UV index of 1, January is the month with the lowest UV index.
What is the snowiest month in Peterson?
The month with the most snowfall in Peterson is February, when snow falls for 8.3 days and typically aggregates up to 3.19" (81mm) 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 in Peterson, Iowa.
What is the wettest month?
The month with the most rainfall in Peterson is June, when the rain falls for 17.3 days and typically aggregates up to 3.15" (80mm) of precipitation.
When it does not snow?
June through September are months without snowfall in Peterson.
When are the longest days?
June has the longest days of the year, with an average of 15h and 18min of daylight.
When is the highest UV index?
June and July, with an average maximum UV index of 6, are months with the highest UV index.
What is the hottest time of year?
Peterson's warmest month, July, generally records average temperatures ranging from a high of 81.5°F (27.5°C) to a low of 64°F (17.8°C).
What month has the most sunshine?
July has the most sunshine of the year, with an average of 10.5h of sunshine.
What is the month with the shortest days?
December has the shortest days of the year, with an average of 9h and 6min of daylight.
Average temperature
Peterson, IA
The warmest month (with the highest average high temperature) is July (81.5°F).
The month with the lowest average high temperature is January (24.4°F).
The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (12°F).
Average pressure
Peterson, 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:
29.87"Hg
- Average pressure in July:
29.95"Hg - Average pressure in August:
29.95"Hg - Average pressure in September:
30"Hg - Average pressure in October:
30"Hg - Average pressure in November:
30.07"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
Peterson, IA
- Average wind speed in January:
10.8mph - Average wind speed in February:
10.7mph - Average wind speed in March:
10.8mph - Average wind speed in April:
11.2mph - Average wind speed in May:
9.7mph - Average wind speed in June:
8.7mph
- Average wind speed in July:
7.6mph - Average wind speed in August:
7.8mph - Average wind speed in September:
9mph - Average wind speed in October:
10.1mph - 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 (11.2mph).
The calmest month (with the lowest average wind speed) is July (7.6mph).
Average humidity
Peterson, IA
The month with the highest relative humidity is January (86%).
The months with the lowest relative humidity are April and October (68%).
Average rainfall
Peterson, IA
- Average rainfall in January:
0.55" - Average rainfall in February:
0.67" - Average rainfall in March:
1.18" - Average rainfall in April:
2.09" - Average rainfall in May:
2.68" - Average rainfall in June:
3.15"
- Average rainfall in July:
2.01" - Average rainfall in August:
2.36" - Average rainfall in September:
1.77" - Average rainfall in October:
1.77" - Average rainfall in November:
0.67" - Average rainfall in December:
0.94"
The wettest month (with the highest rainfall) is June (3.15").
The driest month (with the least rainfall) is January (0.55").
Average rainfall days
Peterson, IA
- Average rainfall days in January:
3.6 days - Average rainfall days in February:
2.6 days - Average rainfall days in March:
9.6 days - Average rainfall days in April:
13.4 days - Average rainfall days in May:
15.3 days - Average rainfall days in June:
17.3 days
- Average rainfall days in July:
13.2 days - Average rainfall days in August:
13.1 days - Average rainfall days in September:
10.6 days - Average rainfall days in October:
9 days - Average rainfall days in November:
5.1 days - Average rainfall days in December:
4.2 days
The month with the highest number of rainy days is June (17.3 days).
The month with the least rainy days is February (2.6 days).
Average snowfall
Peterson, IA
- Average snowfall in January:
2.24" - Average snowfall in February:
3.19" - Average snowfall in March:
1.46" - Average snowfall in April:
0.67" - Average snowfall in May:
0.04" - Average snowfall in June:
0"
The month with the highest snowfall is February (3.19").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Peterson, IA
- Average snowfall days in January:
9.1 days - Average snowfall days in February:
8.3 days - Average snowfall days in March:
5.3 days - Average snowfall days in April:
1.6 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:
1.1 days - Average snowfall days in November:
2.7 days - Average snowfall days in December:
8 days
The month with the highest number of snowfall days is January (9.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Peterson, IA
- Average daylight in January:
9h and 2min - 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 4min - 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 1min - Average sunshine in February:
4h and 5min - Average sunshine in March:
6h and 1min - Average sunshine in April:
8h and 0min - Average sunshine in May:
8h and 4min - Average sunshine in June:
9h and 5min
- Average sunshine in July:
10h and 3min - Average sunshine in August:
9h and 4min - Average sunshine in September:
9h and 0min - Average sunshine in October:
5h and 5min - Average sunshine in November:
5h and 4min - Average sunshine in December:
4h and 4min
The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).
Average sunshine days
Peterson, IA
- Average sunshine days in January:
19.7 days - Average sunshine days in February:
17.9 days - Average sunshine days in March:
16.6 days - Average sunshine days in April:
13.8 days - Average sunshine days in May:
13.4 days - Average sunshine days in June:
11.1 days
- Average sunshine days in July:
14.3 days - Average sunshine days in August:
15.8 days - Average sunshine days in September:
16.5 days - Average sunshine days in October:
19.1 days - Average sunshine days in November:
21.1 days - Average sunshine days in December:
20.4 days
The month with the most sunshine days is November (21.1 days).
The month with the least sunshine days is June (11.1 days).
Average UV index
Peterson, IA
The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is January (UV index 1).
Average cloud cover
Peterson, IA
The month with the most cloud cover is January (Cloud cover 55).
The month with the least cloud cover is July (Cloud cover 28).
Average visibility
Peterson, 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).
Peterson, Iowa, USA
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