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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 West Chester, Iowa, is another subzero cold winter month, with an average temperature fluctuating between 16.5°F (-8.6°C) and 28.8°F (-1.8°C). January, with an average high of 28.8°F (-1.8°C) and a low of 16.5°F (-8.6°C), signifies the coldest month of the year. Weather in January »
Weather in February
The last month of the winter, February, is an icy month in West Chester, Iowa, with an average temperature ranging between min 19.9°F (-6.7°C) and max 33.3°F (0.7°C). West Chester's average high-temperature in February is an icy 33.3°F (0.7°C), marking an insignificant difference from the 28.8°F (-1.8°C) of January. Weather in February »
Weather in March
March, the first month of the spring in West Chester, is a frosty month, with temperature in the range of an average high of 47.5°F (8.6°C) and an average low of 32.5°F (0.3°C). Observing a rise in March, the average high-temperature goes from February's icy 33.3°F (0.7°C) to a frosty 47.5°F (8.6°C). Weather in March »
Weather in April
April in West Chester, Iowa, is a mild spring month, with temperature in the range of an average high of 59.5°F (15.3°C) and an average low of 43°F (6.1°C). April sees a rise in the average high-temperature, climbing from a frosty 47.5°F (8.6°C) in March to a refreshing 59.5°F (15.3°C). Weather in April »
Weather in May
The last month of the spring, May, is a pleasant month in West Chester, Iowa, with an average temperature fluctuating between 70.2°F (21.2°C) and 53.8°F (12.1°C). The start of May signals an increase in the average high-temperature, moving from a mild 59.5°F (15.3°C) in April to a pleasant 70.2°F (21.2°C). Weather in May »
Weather in June
June, the first month of the summer in West Chester, is a moderately hot month, with temperature in the range of an average low of 63.1°F (17.3°C) and an average high of 79.5°F (26.4°C). An escalation in the average high-temperature is seen with the onset of June, moving from a pleasant 70.2°F (21.2°C) in May to a warm 79.5°F (26.4°C). Weather in June »
Weather in July
July, like June, in West Chester, Iowa, is a moderately hot summer month, with an average temperature varying between 65.1°F (18.4°C) and 82°F (27.8°C). In West Chester, the highest average temperatures are observed in July, with a high of 82°F (27.8°C) and a low of 65.1°F (18.4°C). July's average heat index is calculated to be a hot 89.6°F (32°C). Weather in July »
Weather in August
August, the last month of the summer in West Chester, is another warm month, with an average temperature fluctuating between 81.1°F (27.3°C) and 63°F (17.2°C). West Chester ushers in August with an average high-temperature of a still moderately hot 81.1°F (27.3°C), showing a close resemblance to the previous month. Weather in August »
Weather in September
The first month of the autumn, September, is still a warm month in West Chester, Iowa, with temperature in the range of an average high of 75.6°F (24.2°C) and an average low of 56.3°F (13.5°C). Start of September brings a slight shift in the average high-temperature, dipping a bit from August's 81.1°F (27.3°C) to a still warm 75.6°F (24.2°C). Weather in September »
Weather in October
October, like September, in West Chester, Iowa, is another enjoyable autumn month, with an average temperature ranging between max 61.5°F (16.4°C) and min 45.3°F (7.4°C). The transition into October is accompanied by a temperature decrease, with the average high-temperature shifting from a moderately hot 75.6°F (24.2°C) in September to a comfortable 61.5°F (16.4°C). Weather in October »
Weather in November
November, the last month of the autumn in West Chester, is also a frosty month, with temperature in the range of an average low of 33.6°F (0.9°C) and an average high of 47.3°F (8.5°C). November brings a drop in West Chester's average high-temperature, falling from a refreshing 61.5°F (16.4°C) in October to a chilly 47.3°F (8.5°C). Weather in November »
Weather in December
December, the first month of the winter in West Chester, is also an icy month, with an average temperature varying between 24.1°F (-4.4°C) and 34.9°F (1.6°C). The onset of December brings a small change in high-temperatures, falling from a chilly 47.3°F (8.5°C) in November to a cold 34.9°F (1.6°C). Weather in December »
Updated: Jul 10, 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 is the coldest month?
January, noted for its average high-temperature of 28.8°F (-1.8°C) and an average low-temperature of 16.5°F (-8.6°C), is considered the coldest month.
What is the most humid month?
The months with the highest humidity are January and July, with an average relative humidity of 83%.
How many days does it rain?
Throughout the year, there are 123.7 rainfall days, and 18.94" (481mm) of precipitation is accumulated.
When does it snow?
January through April, October through December are months with snowfall in West Chester.
What is the snowiest month?
January is the month with the most snowfall. Snow falls for 8.9 days and accumulates 2.52" (64mm) of snow.
How many days does it snow?
Throughout the year, there are 29.8 snowfall days, and 7.99" (203mm) of snow is accumulated.
What is the month with the least sunshine?
January has the least sunshine of the year, with an average of 4.2h of sunshine.
What is the month with the lowest UV index?
January is the month with the lowest UV index, with an average maximum UV index of 1.
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 wettest month?
May is the month with the most rainfall. Rain falls for 17 days and accumulates 2.91" (74mm) of precipitation.
When it does not snow?
In West Chester, snow does not fall in May through September.
When are the longest days?
June has the longest days of the year, with an average of 15h and 6min of daylight.
What is the month with the highest UV index?
The months with the highest UV index are June and July, with an average maximum UV index of 6.
What is the hottest time of year?
In West Chester, July is known for its average highest temperatures, reaching a high of 82°F (27.8°C) and a low of 65.1°F (18.4°C).
What month has the most sunshine?
The month with the most sunshine is July, with an average of 10.2h of sunshine.
What is the least humid month?
October is the least humid month, with an average relative humidity of 72%.
What is the driest month?
The month with the least rainfall in West Chester is December, when the rain falls for 5.8 days and typically collects 0.71" (18mm) of precipitation.
What is the month with the shortest days?
December has the shortest days of the year, with an average of 9h and 12min of daylight.
Average temperature
West Chester, IA
The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (28.8°F).
The month with the highest average low temperature is July (65.1°F).
The coldest month (with the lowest average low temperature) is January (16.5°F).
Average pressure
West Chester, IA
- Average pressure in January:
30.14"Hg - Average pressure in February:
30.13"Hg - Average pressure in March:
30.07"Hg - Average pressure in April:
29.93"Hg - Average pressure in May:
29.94"Hg - Average pressure in June:
29.9"Hg
- Average pressure in July:
29.96"Hg - Average pressure in August:
29.97"Hg - Average pressure in September:
30.02"Hg - Average pressure in October:
30.01"Hg - Average pressure in November:
30.09"Hg - Average pressure in December:
30.11"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed
West Chester, IA
- Average wind speed in January:
10.7mph - Average wind speed in February:
10.6mph - Average wind speed in March:
10.5mph - Average wind speed in April:
10.6mph - Average wind speed in May:
8.9mph - Average wind speed in June:
7.8mph
- Average wind speed in July:
6.9mph - Average wind speed in August:
6.8mph - Average wind speed in September:
7.9mph - Average wind speed in October:
9.6mph - Average wind speed in November:
10.4mph - Average wind speed in December:
10.1mph
The windiest month (with the highest average wind speed) is January (10.7mph).
The calmest month (with the lowest average wind speed) is August (6.8mph).
Average humidity
West Chester, IA
The months with the highest relative humidity are January and July (83%).
The month with the lowest relative humidity is October (72%).
Average rainfall
West Chester, IA
- Average rainfall in January:
0.79" - Average rainfall in February:
0.75" - Average rainfall in March:
1.22" - Average rainfall in April:
1.97" - Average rainfall in May:
2.91" - Average rainfall in June:
2.87"
- Average rainfall in July:
2.01" - Average rainfall in August:
1.34" - Average rainfall in September:
1.65" - Average rainfall in October:
1.54" - Average rainfall in November:
1.18" - Average rainfall in December:
0.71"
The wettest month (with the highest rainfall) is May (2.91").
The driest month (with the least rainfall) is December (0.71").
Average rainfall days
West Chester, IA
- Average rainfall days in January:
4.4 days - Average rainfall days in February:
4.2 days - Average rainfall days in March:
10.9 days - Average rainfall days in April:
12.7 days - Average rainfall days in May:
17 days - Average rainfall days in June:
16.1 days
- Average rainfall days in July:
13.8 days - Average rainfall days in August:
11.8 days - Average rainfall days in September:
9.5 days - Average rainfall days in October:
10.2 days - Average rainfall days in November:
7.3 days - Average rainfall days in December:
5.8 days
The month with the highest number of rainy days is May (17 days).
The month with the least rainy days is February (4.2 days).
Average snowfall
West Chester, IA
The month with the highest snowfall is January (2.52").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days
West Chester, IA
- Average snowfall days in January:
8.9 days - Average snowfall days in February:
7.9 days - Average snowfall days in March:
4.5 days - Average snowfall days in April:
0.9 days - Average snowfall days in May:
0 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:
0.4 days - Average snowfall days in November:
1.5 days - Average snowfall days in December:
5.7 days
The month with the highest number of snowfall days is January (8.9 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight / Average sunshine
West Chester, 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 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 6min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in January:
4h and 1min - Average sunshine in February:
4h and 2min - Average sunshine in March:
6h and 4min - Average sunshine in April:
8h and 0min - Average sunshine in May:
8h and 5min - Average sunshine in June:
10h and 0min
- Average sunshine in July:
10h and 1min - Average sunshine in August:
10h and 1min - Average sunshine in September:
9h and 3min - Average sunshine in October:
5h and 4min - Average sunshine in November:
5h and 3min - Average sunshine in December:
4h and 4min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).
Average sunshine days
West Chester, IA
- Average sunshine days in January:
18.1 days - Average sunshine days in February:
17 days - Average sunshine days in March:
16.6 days - Average sunshine days in April:
14 days - Average sunshine days in May:
10.9 days - Average sunshine days in June:
11 days
- Average sunshine days in July:
12.9 days - Average sunshine days in August:
15.5 days - Average sunshine days in September:
18.1 days - Average sunshine days in October:
19 days - Average sunshine days in November:
20.3 days - Average sunshine days in December:
20.5 days
The month with the most sunshine days is December (20.5 days).
The month with the least sunshine days is May (10.9 days).
Average UV index
West Chester, 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
West Chester, IA
The month with the most cloud cover is January (Cloud cover 55).
The months with the least cloud cover are August and September (Cloud cover 29).
Average visibility
West Chester, 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).
West Chester, Iowa, USA
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