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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, in West Salem, Illinois, is an icy winter month, with an average temperature ranging between min 25°F (-3.9°C) and max 37.8°F (3.2°C). January, recording an average high temperature of 37.8°F (3.2°C) and a low temperature of 25°F (-3.9°C), is West Salem's coldest month. Weather in January »
Weather in February
The last month of the winter, February, is a chilly month in West Salem, Illinois, with an average temperature ranging between min 29.1°F (-1.6°C) and max 42.8°F (6°C). The arrival of February marks a slight shift to an average high-temperature of a frosty 42.8°F (6°C) from January's 37.8°F (3.2°C). Weather in February »
Weather in March
The first month of the spring, March, is a fresh month in West Salem, Illinois, with an average temperature ranging between max 54.1°F (12.3°C) and min 38.5°F (3.6°C). The commencement of March sees a shift in the average high-temperature, moving from a frosty 42.8°F (6°C) in February to a cool 54.1°F (12.3°C). Weather in March »
Weather in April
April in West Salem, Illinois, is a refreshing spring month, with an average temperature ranging between min 48.6°F (9.2°C) and max 64.9°F (18.3°C). With the onset of April, West Salem's average high-temperature experiences a rise, moving from March's fresh 54.1°F (12.3°C) to an enjoyable 64.9°F (18.3°C). Weather in April »
Weather in May
May, the last month of the spring in West Salem, is a warm month, with an average temperature varying between 58.1°F (14.5°C) and 74.5°F (23.6°C). In May, the average high-temperature increases from a refreshing 64.9°F (18.3°C) in April to a warm 74.5°F (23.6°C). Weather in May »
Weather in June
June, the first month of the summer in West Salem, is also a moderately hot month, with an average temperature varying between 82.9°F (28.3°C) and 66.6°F (19.2°C). June's arrival coincides with a subtle temperature rise, moving from May's moderately hot 74.5°F (23.6°C) to a still warm 82.9°F (28.3°C). Weather in June »
Weather in July
July, the same as June, is a moderately hot summer month in West Salem, Illinois, with an average temperature varying between 67.6°F (19.8°C) and 84.7°F (29.3°C). July is the warmest month of the year, registering average temperatures as high as 84.7°F (29.3°C) and as low as 67.6°F (19.8°C). The average heat index in July is evaluated at a sweltering 96.8°F (36°C). Weather in July »
Weather in August
August, the last month of the summer in West Salem, is another warm month, with an average temperature varying between 83.8°F (28.8°C) and 65.8°F (18.8°C). West Salem notes an average high-temperature of a still warm 83.8°F (28.8°C) in August, hardly diverging from July. Weather in August »
Weather in September
September, the first month of the autumn in West Salem, is also a moderately hot month, with an average temperature varying between 79.2°F (26.2°C) and 60.8°F (16°C). With the onset of September, West Salem's average high-temperature clocks in at a still warm 79.2°F (26.2°C), showing a minor fluctuation from the previous month. Weather in September »
Weather in October
October, the same as September, is another enjoyable autumn month in West Salem, Illinois, with an average temperature ranging between max 66.7°F (19.3°C) and min 49.6°F (9.8°C). The transition into October involves a decrease in the average high-temperature, falling from a moderately hot 79.2°F (26.2°C) in September to a comfortable 66.7°F (19.3°C). Weather in October »
Weather in November
November, the last month of the autumn in West Salem, is also a fresh month, with temperature in the range of an average low of 38.3°F (3.5°C) and an average high of 52.9°F (11.6°C). The average high-temperature drops in November, from October's comfortable 66.7°F (19.3°C) to a fresh 52.9°F (11.6°C). Weather in November »
Weather in December
The first month of the winter, December, is also a frosty month in West Salem, Illinois, with an average temperature fluctuating between 31.3°F (-0.4°C) and 43.2°F (6.2°C). December weather is marked by a drop in the average high-temperature, falling from a cool 52.9°F (11.6°C) in November to a frosty 43.2°F (6.2°C). Weather in December »
[Resources]Frequently asked questions
What month is the coldest in West Salem?
In West Salem, January is known for its average lowest temperatures, reaching a high of 37.8°F (3.2°C) and a low of 25°F (-3.9°C).
How many days does it rain in West Salem?
In West Salem, during the entire year, the rain falls for 109.3 days and collects up to 10.83" (275mm) of precipitation.
When does it snow in West Salem?
January through March, November and December are months with snowfall.
What is the snowiest month in West Salem?
January is the month with the most snowfall in West Salem, Illinois. Snow falls for 3.8 days and accumulates 0.39" (10mm) of snow.
How many days does it snow in West Salem?
Throughout the year, there are 12.4 snowfall days, and 1.38" (35mm) of snow is accumulated.
What is the month with the least sunshine in West Salem?
The month with the least sunshine in West Salem is January, with an average of 4.4h of sunshine.
When is the lowest UV index in West Salem?
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2.
When is Daylight Saving Time (DST) in West Salem?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in West Salem, 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 in West Salem?
April is the month with the most rainfall. Rain falls for 11.5 days and accumulates 1.3" (33mm) of precipitation.
When it does not snow in West Salem?
April through October are months without snowfall.
When is the highest UV index in West Salem?
The months with the highest UV index are May through August, with an average maximum UV index of 6.
When are the longest days in West Salem?
June has the longest days of the year, with an average of 14h and 48min of daylight.
What month has the most sunshine in West Salem?
The month with the most sunshine is June, with an average of 10.6h of sunshine.
What are the warmest months in West Salem?
The temperatures in West Salem reach their highest averages in July, with highs of 84.7°F (29.3°C) and lows of 67.6°F (19.8°C).
What is the most humid month in West Salem?
The most humid month in West Salem is July, with an average relative humidity of 80%.
What is the driest month in West Salem?
September is the month with the least rainfall. Rain falls for 8.5 days and accumulates 0.47" (12mm) of precipitation.
What is the least humid month in West Salem?
The least humid month is October, with an average relative humidity of 70%.
What is the month with the shortest days in West Salem?
The month with the shortest days in West Salem is December, with an average of 9h and 30min of daylight.
Average temperature
West Salem, IL
The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is January (37.8°F).
The month with the highest average low temperature is July (67.6°F).
The coldest month (with the lowest average low temperature) is January (25°F).
Average pressure
West Salem, IL
- Average pressure in January:
30.16"Hg - Average pressure in February:
30.12"Hg - Average pressure in March:
30.08"Hg - Average pressure in April:
29.96"Hg - Average pressure in May:
29.97"Hg - Average pressure in June:
29.94"Hg
- Average pressure in July:
29.98"Hg - Average pressure in August:
29.99"Hg - Average pressure in September:
30.03"Hg - Average pressure in October:
30.04"Hg - Average pressure in November:
30.14"Hg - Average pressure in December:
30.14"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed
West Salem, IL
- Average wind speed in January:
10.1mph - Average wind speed in February:
10.1mph - Average wind speed in March:
10mph - Average wind speed in April:
9.9mph - Average wind speed in May:
8.4mph - Average wind speed in June:
7.1mph
- Average wind speed in July:
5.9mph - Average wind speed in August:
6mph - Average wind speed in September:
6.8mph - Average wind speed in October:
8.6mph - Average wind speed in November:
9.2mph - Average wind speed in December:
9.4mph
The windiest months (with the highest average wind speed) are January and February (10.1mph).
The calmest month (with the lowest average wind speed) is July (5.9mph).
Average humidity
West Salem, IL
The month with the highest relative humidity is July (80%).
The month with the lowest relative humidity is October (70%).
Average rainfall
West Salem, IL
- Average rainfall in January:
0.75" - Average rainfall in February:
0.75" - Average rainfall in March:
0.94" - Average rainfall in April:
1.3" - Average rainfall in May:
1.1" - Average rainfall in June:
1.22"
- Average rainfall in July:
1.1" - Average rainfall in August:
0.94" - Average rainfall in September:
0.47" - Average rainfall in October:
0.83" - Average rainfall in November:
0.67" - Average rainfall in December:
0.75"
The wettest month (with the highest rainfall) is April (1.3").
The driest month (with the least rainfall) is September (0.47").
Average rainfall days
West Salem, IL
- Average rainfall days in January:
5.1 days - Average rainfall days in February:
6.5 days - Average rainfall days in March:
9.8 days - Average rainfall days in April:
11.5 days - Average rainfall days in May:
14 days - Average rainfall days in June:
11.7 days
- Average rainfall days in July:
12.7 days - Average rainfall days in August:
10.5 days - Average rainfall days in September:
8.5 days - Average rainfall days in October:
6.2 days - Average rainfall days in November:
6.2 days - Average rainfall days in December:
6.6 days
The month with the highest number of rainy days is May (14 days).
The month with the least rainy days is January (5.1 days).
Average snowfall
West Salem, IL
The month with the highest snowfall is January (0.39").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days
West Salem, IL
- Average snowfall days in January:
3.8 days - Average snowfall days in February:
3.6 days - Average snowfall days in March:
1.8 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:
0.1 days - Average snowfall days in November:
0.8 days - Average snowfall days in December:
2 days
The month with the highest number of snowfall days is January (3.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight / Average sunshine
West Salem, IL
- Average daylight in January:
9h and 5min - Average daylight in February:
10h and 5min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 1min - Average daylight in May:
14h and 2min - Average daylight in June:
14h and 5min
- Average daylight in July:
14h and 3min - 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 1min - Average daylight in December:
9h and 3min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in January:
4h and 2min - Average sunshine in February:
4h and 4min - Average sunshine in March:
6h and 2min - Average sunshine in April:
8h and 3min - Average sunshine in May:
9h and 1min - Average sunshine in June:
10h and 4min
- Average sunshine in July:
10h and 3min - Average sunshine in August:
10h and 2min - Average sunshine in September:
9h and 1min - Average sunshine in October:
6h and 4min - Average sunshine in November:
5h and 3min - Average sunshine in December:
4h and 4min
The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 4h and 24min).
Average sunshine days
West Salem, IL
- Average sunshine days in January:
23 days - Average sunshine days in February:
18.8 days - Average sunshine days in March:
18.4 days - Average sunshine days in April:
16.8 days - Average sunshine days in May:
14.3 days - Average sunshine days in June:
14.3 days
- Average sunshine days in July:
15.2 days - Average sunshine days in August:
16.8 days - Average sunshine days in September:
19.1 days - Average sunshine days in October:
23.2 days - Average sunshine days in November:
21.5 days - Average sunshine days in December:
22.4 days
The month with the most sunshine days is October (23.2 days).
The months with the least sunshine days are May and June (14.3 days).
Average UV index
West Salem, IL
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover
West Salem, IL
The month with the most cloud cover is January (Cloud cover 52).
The month with the least cloud cover is June (Cloud cover 27).
Average visibility
West Salem, IL
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).
West Salem, Illinois, USA
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