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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, is a wintry winter month in Westfield, Illinois, with temperature in the range of an average low of 22.6°F (-5.2°C) and an average high of 34.7°F (1.5°C). In Westfield, the month of January is known for its lowest average temperatures, reaching a high of 34.7°F (1.5°C) and a low of 22.6°F (-5.2°C). Weather in January »
Weather in February
February, the last month of the winter in Westfield, is also an icy month, with temperature in the range of an average high of 39.7°F (4.3°C) and an average low of 26.4°F (-3.1°C). Westfield in February witnesses an average high-temperature of a still wintry 39.7°F (4.3°C), indicating a slight variation from January's 34.7°F (1.5°C). Weather in February »
Weather in March
March, the first month of the spring in Westfield, is a fresh month, with an average temperature fluctuating between 36.5°F (2.5°C) and 51.4°F (10.8°C). In Westfield, the onset of March comes with an increased average high-temperature, moving from February's icy 39.7°F (4.3°C) to a fresh 51.4°F (10.8°C). Weather in March »
Weather in April
April is a refreshing spring month in Westfield, Illinois, with an average temperature ranging between min 46.4°F (8°C) and max 62.8°F (17.1°C). Westfield's transition into April is marked by a temperature shift, moving from a cool 51.4°F (10.8°C) in March to a refreshing 62.8°F (17.1°C). Weather in April »
Weather in May
The last month of the spring, May, is a pleasant month in Westfield, Illinois, with an average temperature varying between 56.7°F (13.7°C) and 73°F (22.8°C). As May begins, there is an increase in the average high-temperature, moving from a refreshing 62.8°F (17.1°C) in April to an agreeable 73°F (22.8°C). Weather in May »
Weather in June
June, the first month of the summer in Westfield, is a moderately hot month, with an average temperature ranging between min 64.9°F (18.3°C) and max 81.1°F (27.3°C). As June sets, the average high-temperature shows a slight increase, moving up from an agreeable 73°F (22.8°C) in May to a moderately hot 81.1°F (27.3°C). Weather in June »
Weather in July
July, the same as June, is another warm summer month in Westfield, Illinois, with an average temperature varying between 82.9°F (28.3°C) and 66.4°F (19.1°C). With an average high-temperature of 82.9°F (28.3°C) and an average low-temperature of 66.4°F (19.1°C), July is the warmest month. For most parts of July, the heat index is estimated at a hot 91.4°F (33°C). Weather in July »
Weather in August
The last month of the summer, August, is another warm month in Westfield, Illinois, with an average temperature ranging between min 64°F (17.8°C) and max 81.7°F (27.6°C). The average high-temperature in August, at a still moderately hot 81.7°F (27.6°C), reveals a modest deviation from July's 82.9°F (28.3°C). Weather in August »
Weather in September
The first month of the autumn, September, is also a moderately hot month in Westfield, Illinois, with an average temperature fluctuating between 77.4°F (25.2°C) and 59.2°F (15.1°C). September's onset records a minor alteration in the average high-temperature to a still warm 77.4°F (25.2°C) from August's 81.7°F (27.6°C). Weather in September »
Weather in October
October, like September, in Westfield, Illinois, is another comfortable autumn month, with temperature in the range of an average high of 64.2°F (17.9°C) and an average low of 48.4°F (9.1°C). October brings a drop in Westfield's average high-temperature, falling from a moderately hot 77.4°F (25.2°C) in September to a refreshing 64.2°F (17.9°C). Weather in October »
Weather in November
November, the last month of the autumn in Westfield, is also a fresh month, with an average temperature fluctuating between 36.5°F (2.5°C) and 50.5°F (10.3°C). November's arrival coincides with a drop in the average high-temperature, decreasing from October's refreshing 64.2°F (17.9°C) to a cool 50.5°F (10.3°C). Weather in November »
Weather in December
The first month of the winter, December, is still a cold month in Westfield, Illinois, with an average temperature varying between 28.9°F (-1.7°C) and 39.7°F (4.3°C). With December's arrival, Westfield sees a decrease in average high-temperatures, moving from a fresh 50.5°F (10.3°C) in November to a wintry 39.7°F (4.3°C). Weather in December »
[Resources]Frequently asked questions
What month is the coldest in Westfield?
January stands out as Westfield's coldest month, with temperatures ranging between an average high of 34.7°F (1.5°C) and a low of 22.6°F (-5.2°C).
How many days does it rain in Westfield?
Throughout the year, in Westfield, there are 115.9 rainfall days, and 11.26" (286mm) of precipitation is accumulated.
When does it snow in Westfield?
January through April, November and December are months with snowfall in Westfield, Illinois.
How many days does it snow in Westfield?
Throughout the year, in Westfield, Illinois, there are 18.9 snowfall days, and 1.73" (44mm) of snow is accumulated.
What is the month with the least sunshine in Westfield?
With an average of 4.1h of sunshine, January has the least sunshine of the year.
What is the driest month in Westfield?
February is the month with the least rainfall. Rain falls for 6 days and accumulates 0.47" (12mm) of precipitation.
When is Daylight Saving Time (DST) in Westfield?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Westfield, Illinois, 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 rainiest month in Westfield?
April is the month with the most rainfall in Westfield. Rain falls for 12.6 days and accumulates 1.54" (39mm) of precipitation.
When it does not snow in Westfield?
May through October are months without snowfall in Westfield.
When are the longest days in Westfield?
With an average of 14h and 54min of daylight, June has the longest days of the year.
What month has the most sunshine in Westfield?
The month with the most sunshine in Westfield, Illinois, is June, with an average of 10.4h of sunshine.
When is the highest UV index in Westfield?
June through August, with an average maximum UV index of 6, are months with the highest UV index in Westfield.
What is the hottest time of year in Westfield?
July, noted for its average high-temperature of 82.9°F (28.3°C) and an average low-temperature of 66.4°F (19.1°C), is considered the warmest month in Westfield, Illinois.
What is the most humid month in Westfield?
July is the most humid month, with an average relative humidity of 83%.
What is the least humid month in Westfield?
With an average relative humidity of 71%, October is the least humid month.
What is the snowiest month in Westfield?
December is the month with the most snowfall in Westfield, Illinois. Snow falls for 4 days and accumulates 0.47" (12mm) of snow.
What is the month with the shortest days in Westfield?
With an average of 9h and 24min of daylight, December has the shortest days of the year.
When is the lowest UV index in Westfield?
December is the month with the lowest UV index, with an average maximum UV index of 1.
Average temperature
Westfield, IL
The warmest month (with the highest average high temperature) is July (82.9°F).
The month with the lowest average high temperature is January (34.7°F).
The month with the highest average low temperature is July (66.4°F).
The coldest month (with the lowest average low temperature) is January (22.6°F).
Average pressure
Westfield, IL
- Average pressure in January:
30.15"Hg - Average pressure in February:
30.11"Hg - Average pressure in March:
30.08"Hg - Average pressure in April:
29.95"Hg - Average pressure in May:
29.96"Hg - Average pressure in June:
29.93"Hg
- Average pressure in July:
29.98"Hg - Average pressure in August:
29.98"Hg - Average pressure in September:
30.03"Hg - Average pressure in October:
30.03"Hg - Average pressure in November:
30.13"Hg - Average pressure in December:
30.13"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed
Westfield, IL
- Average wind speed in January:
10.4mph - Average wind speed in February:
10.4mph - Average wind speed in March:
10.1mph - Average wind speed in April:
10.1mph - Average wind speed in May:
8.4mph - Average wind speed in June:
7.3mph
- Average wind speed in July:
6.1mph - Average wind speed in August:
6.1mph - Average wind speed in September:
6.9mph - Average wind speed in October:
8.9mph - Average wind speed in November:
9.6mph - Average wind speed in December:
9.6mph
The windiest months (with the highest average wind speed) are January and February (10.4mph).
The calmest months (with the lowest average wind speed) are July and August (6.1mph).
Average humidity
Westfield, IL
The month with the highest relative humidity is July (83%).
The month with the lowest relative humidity is October (71%).
Average rainfall
Westfield, IL
- Average rainfall in January:
0.75" - Average rainfall in February:
0.47" - Average rainfall in March:
0.79" - Average rainfall in April:
1.54" - Average rainfall in May:
1.34" - Average rainfall in June:
1.38"
- Average rainfall in July:
1.22" - Average rainfall in August:
0.87" - Average rainfall in September:
0.55" - Average rainfall in October:
0.98" - Average rainfall in November:
0.59" - Average rainfall in December:
0.79"
The wettest month (with the highest rainfall) is April (1.54").
The driest month (with the least rainfall) is February (0.47").
Average rainfall days
Westfield, IL
- Average rainfall days in January:
6.4 days - Average rainfall days in February:
6 days - Average rainfall days in March:
10 days - Average rainfall days in April:
12.6 days - Average rainfall days in May:
14.9 days - Average rainfall days in June:
12.6 days
- Average rainfall days in July:
12.5 days - Average rainfall days in August:
10.6 days - Average rainfall days in September:
9.5 days - Average rainfall days in October:
7.7 days - Average rainfall days in November:
6.6 days - Average rainfall days in December:
6.5 days
The month with the highest number of rainy days is May (14.9 days).
The month with the least rainy days is February (6 days).
Average snowfall
Westfield, IL
The month with the highest snowfall is December (0.47").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days
Westfield, IL
- Average snowfall days in January:
5.8 days - Average snowfall days in February:
4.7 days - Average snowfall days in March:
2.7 days - Average snowfall days in April:
0.3 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 days - Average snowfall days in November:
1.4 days - Average snowfall days in December:
4 days
The month with the highest number of snowfall days is January (5.8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight / Average sunshine
Westfield, IL
- Average daylight in January:
9h and 5min - 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 2min - Average daylight in June:
14h and 5min
- Average daylight in July:
14h and 4min - Average daylight in August:
13h and 4min - Average daylight in September:
12h and 2min - Average daylight in October:
11h and 1min - Average daylight in November:
10h and 0min - Average daylight in December:
9h and 2min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in January:
4h and 1min - Average sunshine in February:
4h and 2min - 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:
10h and 2min
- Average sunshine in July:
10h and 1min - Average sunshine in August:
10h and 0min - Average sunshine in September:
9h and 0min - Average sunshine in October:
6h and 2min - Average sunshine in November:
5h and 2min - Average sunshine in December:
4h and 2min
The month with the most sunshine is June (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).
Average sunshine days
Westfield, IL
- Average sunshine days in January:
20.6 days - Average sunshine days in February:
17.6 days - Average sunshine days in March:
17.3 days - Average sunshine days in April:
14.8 days - Average sunshine days in May:
12.4 days - Average sunshine days in June:
13.4 days
- Average sunshine days in July:
14.3 days - Average sunshine days in August:
16.5 days - Average sunshine days in September:
18.2 days - Average sunshine days in October:
21.2 days - Average sunshine days in November:
21 days - Average sunshine days in December:
20.8 days
The month with the most sunshine days is October (21.2 days).
The month with the least sunshine days is May (12.4 days).
Average UV index
Westfield, IL
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover
Westfield, IL
The month with the most cloud cover is January (Cloud cover 55).
The month with the least cloud cover is June (Cloud cover 30).
Average visibility
Westfield, IL
The months with the highest visibility are January, February, March, April, May, June, July, September, October, November and December (6mi).
The month with the lowest visibility is August (5mi).
Westfield, Illinois, USA
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