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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 Gross, Illinois, is a wintry winter month, with an average temperature fluctuating between 26.8°F (-2.9°C) and 39.7°F (4.3°C). During the coldest month, January, temperatures average a high of 39.7°F (4.3°C) and a low of 26.8°F (-2.9°C). Weather in January »
Weather in February
February, the last month of the winter in Gross, is a frosty month, with an average temperature varying between 44.6°F (7°C) and 30.6°F (-0.8°C). The arrival of February brings an average high-temperature of a chilly 44.6°F (7°C), subtly diverging from January's 39.7°F (4.3°C). Weather in February »
Weather in March
The first month of the spring, March, is a moderate month in Gross, Illinois, with an average temperature ranging between min 39.6°F (4.2°C) and max 55.4°F (13°C). The transition from February to March brings a temperature rise, with average high-temperatures increasing from a frosty 44.6°F (7°C) to a mild 55.4°F (13°C). Weather in March »
Weather in April
April is an enjoyable spring month in Gross, Illinois, with an average temperature varying between 66.4°F (19.1°C) and 48.9°F (9.4°C). As Gross welcomes April, the average high-temperature sees a rise, transitioning from 55.4°F (13°C) in March to a still refreshing 66.4°F (19.1°C). Weather in April »
Weather in May
The last month of the spring, May, is a moderately hot month in Gross, Illinois, with temperature in the range of an average high of 75.6°F (24.2°C) and an average low of 58.3°F (14.6°C). An escalation in the average high-temperature is seen with the onset of May, moving from a refreshing 66.4°F (19.1°C) in April to a warm 75.6°F (24.2°C). Weather in May »
Weather in June
June, the first month of the summer in Gross, is also a moderately hot month, with an average temperature fluctuating between 66.4°F (19.1°C) and 84°F (28.9°C). Entering June, Gross notices a subtle temperature elevation, with the average high-temperature advancing from May's 75.6°F (24.2°C) to a still warm 84°F (28.9°C). Weather in June »
Weather in July
July in Gross, Illinois, is a hot summer month, with temperature in the range of an average low of 68.4°F (20.2°C) and an average high of 86.2°F (30.1°C). July is the warmest month of the year, registering average temperatures as high as 86.2°F (30.1°C) and as low as 68.4°F (20.2°C). July's mean heat index is computed to be a torrid 98.6°F (37°C). Weather in July »
Weather in August
The last month of the summer, August, is another warm month in Gross, Illinois, with an average temperature varying between 84.9°F (29.4°C) and 66.2°F (19°C). The onset of August manifests an average high-temperature of a warm 84.9°F (29.4°C), demonstrating a minor variation from the preceding month. Weather in August »
Weather in September
The first month of the autumn, September, is still a warm month in Gross, Illinois, with an average temperature ranging between max 79.9°F (26.6°C) and min 60.8°F (16°C). The onset of September manifests an average high-temperature of a still warm 79.9°F (26.6°C), demonstrating a minor variation from the preceding month. Weather in September »
Weather in October
October, like September, in Gross, Illinois, is another refreshing autumn month, with temperature in the range of an average low of 49.6°F (9.8°C) and an average high of 67.8°F (19.9°C). October brings a minor decrease, with the average high-temperature reducing from a moderately hot 79.9°F (26.6°C) in September to a refreshing 67.8°F (19.9°C). Weather in October »
Weather in November
November, the last month of the autumn in Gross, is another cool month, with an average temperature fluctuating between 54.1°F (12.3°C) and 38.8°F (3.8°C). Arrival of November comes with a reduction in the average high-temperature, falling from a refreshing 67.8°F (19.9°C) in October to a fresh 54.1°F (12.3°C). Weather in November »
Weather in December
The first month of the winter, December, is still a chilly month in Gross, Illinois, with an average temperature ranging between min 32.9°F (0.5°C) and max 44.6°F (7°C). December comes with a drop in the average high-temperature, falling from November's cool 54.1°F (12.3°C) to a frosty 44.6°F (7°C). Weather in December »
Updated: Aug 28, 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?
Gross reaches its average lowest temperatures in January, measuring 39.7°F (4.3°C) at the peak and 26.8°F (-2.9°C) at the lowest.
How many days does it rain in Gross?
Throughout the year, there are 146.3 rainfall days, and 24.96" (634mm) of precipitation is accumulated.
When does it snow?
January through April, November and December are months with snowfall.
How much does it snow?
Throughout the year, there are 15.9 snowfall days, and 3.58" (91mm) of snow is accumulated.
What is the month with the least sunshine?
With an average of 4.5h of sunshine, January has the least sunshine of the year.
When is the lowest UV index?
January, February and December, with an average maximum UV index of 2, are months with the lowest UV index.
When does it snow the most?
The month with the most snowfall in Gross is February, when snow falls for 4.3 days and typically aggregates up to 0.87" (22mm) 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 wettest month?
The month with the most rainfall is April, when the rain falls for 14.7 days and typically aggregates up to 3.27" (83mm) of precipitation.
What is the most humid month?
With an average relative humidity of 80%, May is the most humid month.
When it does not snow?
In Gross, snow does not fall in May through October.
When is the highest UV index?
May through August, with an average maximum UV index of 6, are months with the highest UV index.
When are the longest days in Gross?
The month with the longest days is June, with an average of 14h and 42min of daylight.
What time of the year is the hottest in Gross?
July, noted for its average high-temperature of 86.2°F (30.1°C) and an average low-temperature of 68.4°F (20.2°C), is considered the warmest month.
What month has the most sunshine?
The month with the most sunshine is July, with an average of 10.6h of sunshine.
What is the driest month?
September is the month with the least rainfall. Rain falls for 10.8 days and accumulates 1.14" (29mm) of precipitation.
What is the least humid month?
With an average relative humidity of 70%, October is the least humid month.
What is the month with the shortest days?
The month with the shortest days is December, with an average of 9h and 36min of daylight.
Average temperature
Gross, IL
The warmest month (with the highest average high temperature) is July (86.2°F).
The month with the lowest average high temperature is January (39.7°F).
The month with the highest average low temperature is July (68.4°F).
The coldest month (with the lowest average low temperature) is January (26.8°F).
Average pressure
Gross, IL
- Average pressure in January:
30.16"Hg - Average pressure in February:
30.12"Hg - Average pressure in March:
30.09"Hg - Average pressure in April:
29.96"Hg - Average pressure in May:
29.98"Hg - Average pressure in June:
29.95"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:
30.05"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 (29.95"Hg).
Average wind speed
Gross, IL
- Average wind speed in January:
9.7mph - Average wind speed in February:
9.8mph - Average wind speed in March:
9.6mph - Average wind speed in April:
9.6mph - Average wind speed in May:
8mph - Average wind speed in June:
6.7mph
- Average wind speed in July:
5.8mph - Average wind speed in August:
5.8mph - Average wind speed in September:
6.5mph - Average wind speed in October:
8.2mph - Average wind speed in November:
8.8mph - Average wind speed in December:
9.1mph
The windiest month (with the highest average wind speed) is February (9.8mph).
The calmest months (with the lowest average wind speed) are July and August (5.8mph).
Average humidity
Gross, IL
The month with the highest relative humidity is May (80%).
The month with the lowest relative humidity is October (70%).
Average rainfall
Gross, IL
- Average rainfall in January:
1.97" - Average rainfall in February:
2.17" - Average rainfall in March:
2.28" - Average rainfall in April:
3.27" - Average rainfall in May:
2.4" - Average rainfall in June:
2.24"
- Average rainfall in July:
2.05" - Average rainfall in August:
1.77" - Average rainfall in September:
1.14" - Average rainfall in October:
1.77" - Average rainfall in November:
1.85" - Average rainfall in December:
2.05"
The wettest month (with the highest rainfall) is April (3.27").
The driest month (with the least rainfall) is September (1.14").
Average rainfall days
Gross, IL
- Average rainfall days in January:
9.3 days - Average rainfall days in February:
9.8 days - Average rainfall days in March:
13.5 days - Average rainfall days in April:
14.7 days - Average rainfall days in May:
16.7 days - Average rainfall days in June:
14.3 days
- Average rainfall days in July:
15 days - Average rainfall days in August:
13.3 days - Average rainfall days in September:
10.8 days - Average rainfall days in October:
9.5 days - Average rainfall days in November:
9 days - Average rainfall days in December:
10.4 days
The month with the highest number of rainy days is May (16.7 days).
The month with the least rainy days is November (9 days).
Average snowfall
Gross, IL
The month with the highest snowfall is February (0.87").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days
Gross, IL
- Average snowfall days in January:
4.8 days - Average snowfall days in February:
4.3 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:
1.1 days - Average snowfall days in December:
3.5 days
The month with the highest number of snowfall days is January (4.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight / Average sunshine
Gross, 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 1min - Average daylight in June:
14h and 4min
- 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 4min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in January:
4h and 3min - Average sunshine in February:
4h and 5min - Average sunshine in March:
6h and 2min - Average sunshine in April:
8h and 5min - Average sunshine in May:
9h and 2min - Average sunshine in June:
10h and 3min
- Average sunshine in July:
10h and 4min - Average sunshine in August:
10h and 2min - Average sunshine in September:
9h and 1min - Average sunshine in October:
6h 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 36min).
The month with the least sunshine is January (Average sunshine: 4h and 30min).
Average sunshine days
Gross, IL
- Average sunshine days in January:
17 days - Average sunshine days in February:
14.6 days - Average sunshine days in March:
14.1 days - Average sunshine days in April:
13.3 days - Average sunshine days in May:
11.2 days - Average sunshine days in June:
12.1 days
- Average sunshine days in July:
12.3 days - Average sunshine days in August:
15.3 days - Average sunshine days in September:
17 days - Average sunshine days in October:
20.5 days - Average sunshine days in November:
19.3 days - Average sunshine days in December:
17.2 days
The month with the most sunshine days is October (20.5 days).
The month with the least sunshine days is May (11.2 days).
Average UV index
Gross, 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 and December (UV index 2).
Average cloud cover
Gross, IL
The month with the most cloud cover is January (Cloud cover 51).
The month with the least cloud cover is June (Cloud cover 27).
Average visibility
Gross, 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).
Gross, Illinois, USA
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