Expand
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 Silvis, Illinois, is another subzero cold winter month, with an average temperature varying between 28.2°F (-2.1°C) and 15.4°F (-9.2°C). January, having an average high-temperature of 28.2°F (-2.1°C) and an average low-temperature of 15.4°F (-9.2°C), is the coldest month. Weather in January »
Weather in February
February, the last month of the winter in Silvis, is a cold month, with an average temperature fluctuating between 32.7°F (0.4°C) and 19.6°F (-6.9°C). Silvis's transition from January to February introduces an average high-temperature of an icy 32.7°F (0.4°C), marking an insignificant variation from the 28.2°F (-2.1°C). Weather in February »
Weather in March
The first month of the spring, March, is a chilly month in Silvis, Illinois, with an average temperature ranging between min 32°F (0°C) and max 46.8°F (8.2°C). The beginning of March signals a rise in the average high-temperature, moving from an icy 32.7°F (0.4°C) in February to a frosty 46.8°F (8.2°C). Weather in March »
Weather in April
April is a moderate spring month in Silvis, Illinois, with an average temperature ranging between min 42.4°F (5.8°C) and max 59°F (15°C). In Silvis, the average high-temperature in April rises, from a frosty 46.8°F (8.2°C) in March, to a moderate 59°F (15°C). Weather in April »
Weather in May
May, the last month of the spring in Silvis, is an agreeable month, with temperature in the range of an average low of 53.4°F (11.9°C) and an average high of 70.3°F (21.3°C). Entering May, Silvis sees a temperature rise, with the average high-temperature advancing from April's moderate 59°F (15°C) to a pleasant 70.3°F (21.3°C). Weather in May »
Weather in June
June, the first month of the summer in Silvis, is a moderately hot month, with an average temperature ranging between min 61.9°F (16.6°C) and max 79°F (26.1°C). Silvis in June denotes a subtle temperature transition, adjusting from an average high of an agreeable 70.3°F (21.3°C) in May to a warm 79°F (26.1°C). Weather in June »
Weather in July
July, the same as June, is a moderately hot summer month in Silvis, Illinois, with an average temperature varying between 64.8°F (18.2°C) and 81.7°F (27.6°C). July registers as the month with the highest average temperatures, reaching 81.7°F (27.6°C) at its peak and 64.8°F (18.2°C) at the lowest. Throughout July, the heat index is appraised at a tropical 89.6°F (32°C). Weather in July »
Weather in August
August, the last month of the summer in Silvis, is also a moderately hot month, with an average temperature varying between 80.6°F (27°C) and 62.4°F (16.9°C). August's weather displays an average high-temperature of a still moderately hot 80.6°F (27°C), slightly varied from July's 81.7°F (27.6°C). Weather in August »
Weather in September
The first month of the autumn, September, is also a moderately hot month in Silvis, Illinois, with an average temperature ranging between min 56.3°F (13.5°C) and max 75.4°F (24.1°C). Entering September, the average high-temperature is recorded at a still warm 75.4°F (24.1°C), exhibiting a minimal shift from August's 80.6°F (27°C). Weather in September »
Weather in October
October, the same as September, is another enjoyable autumn month in Silvis, Illinois, with an average temperature varying between 45°F (7.2°C) and 61.3°F (16.3°C). The onset of October introduces a moderate change in Silvis's weather, with average high-temperatures falling from September's moderately hot 75.4°F (24.1°C) to an enjoyable 61.3°F (16.3°C). Weather in October »
Weather in November
The last month of the autumn, November, is another chilly month in Silvis, Illinois, with an average temperature ranging between max 46.9°F (8.3°C) and min 33.3°F (0.7°C). Silvis's November weather is marked by a distinct drop in high-temperatures, declining from an enjoyable 61.3°F (16.3°C) in October to a chilly 46.9°F (8.3°C). Weather in November »
Weather in December
December, the first month of the winter in Silvis, is also a wintry month, with an average temperature ranging between max 34.5°F (1.4°C) and min 23.9°F (-4.5°C). The commencement of December involves a temperature shift, with the average high-temperature dropping from a frosty 46.9°F (8.3°C) in November to a wintry 34.5°F (1.4°C). Weather in December »
Updated: Jul 22, 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 time of year?
January, noted for its average high-temperature of 28.2°F (-2.1°C) and an average low-temperature of 15.4°F (-9.2°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 99.4 rainfall days, and 9.57" (243mm) of precipitation is accumulated.
When does it snow?
January through April, September through December are months with snowfall.
When does it snow the most?
The month with the most snowfall is January, when snow falls for 7.2 days and typically aggregates up to 1.26" (32mm) of snow.
How much does it snow?
Throughout the year, there are 24.5 snowfall days, and 4.09" (104mm) of snow is accumulated.
What is the month with the least sunshine?
January has the least sunshine of the year, with an average of 3.9h 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 rainiest month?
May is the month with the most rainfall. Rain falls for 13.4 days and accumulates 1.61" (41mm) of precipitation.
When it does not snow?
In Silvis, Illinois, snow does not fall in May through August.
When are the longest days?
The month with the longest days is June, with an average of 15h and 6min of daylight.
What are the warmest months?
July, with its average high-temperature of 81.7°F (27.6°C) and an average low-temperature of 64.8°F (18.2°C), holds the record as the warmest month.
What month has the most sunshine in Silvis?
The month with the most sunshine is July, with an average of 10.1h of sunshine.
When is the highest UV index?
The month with the highest UV index is July, with an average maximum UV index of 6.
What is the least humid month?
With an average relative humidity of 71%, October is the least humid month.
What is the driest month?
The month with the least rainfall is December, when the rain falls for 4.1 days and typically collects 0.35" (9mm) of precipitation.
What is the month with the shortest days?
The month with the shortest days is December, with an average of 9h and 12min of daylight.
Average temperature
Silvis, IL
The warmest month (with the highest average high temperature) is July (81.7°F).
The month with the lowest average high temperature is January (28.2°F).
The month with the highest average low temperature is July (64.8°F).
The coldest month (with the lowest average low temperature) is January (15.4°F).
Average pressure
Silvis, IL
- Average pressure in January:
30.13"Hg - Average pressure in February:
30.12"Hg - Average pressure in March:
30.08"Hg - Average pressure in April:
29.93"Hg - Average pressure in May:
29.95"Hg - Average pressure in June:
29.91"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 (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed
Silvis, IL
- Average wind speed in January:
10.3mph - Average wind speed in February:
10.4mph - Average wind speed in March:
10.3mph - Average wind speed in April:
10.6mph - Average wind speed in May:
9mph - Average wind speed in June:
7.8mph
- Average wind speed in July:
6.8mph - Average wind speed in August:
6.7mph - Average wind speed in September:
7.8mph - Average wind speed in October:
9.5mph - Average wind speed in November:
10.3mph - Average wind speed in December:
9.8mph
The windiest month (with the highest average wind speed) is April (10.6mph).
The calmest month (with the lowest average wind speed) is August (6.7mph).
Average humidity
Silvis, IL
The months with the highest relative humidity are January and July (83%).
The month with the lowest relative humidity is October (71%).
Average rainfall
Silvis, IL
- Average rainfall in January:
0.43" - Average rainfall in February:
0.39" - Average rainfall in March:
0.63" - Average rainfall in April:
1.02" - Average rainfall in May:
1.61" - Average rainfall in June:
1.26"
- Average rainfall in July:
1.18" - Average rainfall in August:
0.71" - Average rainfall in September:
0.75" - Average rainfall in October:
0.71" - Average rainfall in November:
0.51" - Average rainfall in December:
0.35"
The wettest month (with the highest rainfall) is May (1.61").
The driest month (with the least rainfall) is December (0.35").
Average rainfall days
Silvis, IL
- Average rainfall days in January:
3.2 days - Average rainfall days in February:
3.3 days - Average rainfall days in March:
8.2 days - Average rainfall days in April:
11.8 days - Average rainfall days in May:
13.4 days - Average rainfall days in June:
13.1 days
- Average rainfall days in July:
11.2 days - Average rainfall days in August:
10.7 days - Average rainfall days in September:
6.9 days - Average rainfall days in October:
8.4 days - Average rainfall days in November:
5.1 days - Average rainfall days in December:
4.1 days
The month with the highest number of rainy days is May (13.4 days).
The month with the least rainy days is January (3.2 days).
Average snowfall
Silvis, IL
The month with the highest snowfall is January (1.26").
The months with the least snowfall are May, June, July and August (0").
Average snowfall days
Silvis, IL
- Average snowfall days in January:
7.2 days - Average snowfall days in February:
6.2 days - Average snowfall days in March:
3.1 days - Average snowfall days in April:
0.8 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:
0.1 days - Average snowfall days in October:
0.6 days - Average snowfall days in November:
1.5 days - Average snowfall days in December:
5 days
The month with the highest number of snowfall days is January (7.2 days).
The months with the least snowfall days are May, June, July and August (0 days).
Average daylight / Average sunshine
Silvis, IL
- 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:
3h and 5min - Average sunshine in February:
4h and 1min - Average sunshine in March:
6h and 2min - Average sunshine in April:
7h and 4min - Average sunshine in May:
8h and 4min - Average sunshine in June:
9h and 4min
- Average sunshine in July:
10h and 1min - Average sunshine in August:
9h and 5min - Average sunshine in September:
9h and 1min - Average sunshine in October:
5h and 3min - Average sunshine in November:
5h and 1min - Average sunshine in December:
4h and 1min
The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days
Silvis, IL
- Average sunshine days in January:
22.2 days - Average sunshine days in February:
19.5 days - Average sunshine days in March:
19.8 days - Average sunshine days in April:
16.7 days - Average sunshine days in May:
14.6 days - Average sunshine days in June:
14.4 days
- Average sunshine days in July:
16.2 days - Average sunshine days in August:
17.4 days - Average sunshine days in September:
20.9 days - Average sunshine days in October:
21.3 days - Average sunshine days in November:
22.1 days - Average sunshine days in December:
22.4 days
The month with the most sunshine days is December (22.4 days).
The month with the least sunshine days is June (14.4 days).
Average UV index
Silvis, IL
The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is January (UV index 1).
Average cloud cover
Silvis, IL
The month with the most cloud cover is January (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility
Silvis, 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).
Silvis, Illinois, USA
Weather forecast for your location
1. Click Locate me button
2. Allow the app to use your location
2. Allow the app to use your location