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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 Essex, Illinois, is another subzero cold winter month, with an average temperature ranging between min 18°F (-7.8°C) and max 29.8°F (-1.2°C). January, with average temperatures reaching a high of 29.8°F (-1.2°C) and a low of 18°F (-7.8°C), is the coldest month. Weather in January »
Weather in February
February, the last month of the winter in Essex, is an icy month, with temperature in the range of an average low of 20.8°F (-6.2°C) and an average high of 33.6°F (0.9°C). The arrival of February brings an average high-temperature of a wintry 33.6°F (0.9°C), closely following the temperature pattern of January. Weather in February »
Weather in March
The first month of the spring, March, is a chilly month in Essex, Illinois, with an average temperature fluctuating between 47.5°F (8.6°C) and 32.9°F (0.5°C). Essex's weather in March shows a rise in the average high-temperature, moving up from February's icy 33.6°F (0.9°C) to a chilly 47.5°F (8.6°C). Weather in March »
Weather in April
April is a moderate spring month in Essex, Illinois, with an average temperature ranging between max 58.8°F (14.9°C) and min 42.6°F (5.9°C). Essex sees an increase in the average high-temperature with the arrival of April, moving from March's frosty 47.5°F (8.6°C) to a refreshing 58.8°F (14.9°C). Weather in April »
Weather in May
May, the last month of the spring in Essex, is a pleasant month, with an average temperature fluctuating between 54.1°F (12.3°C) and 70.9°F (21.6°C). The transition to May introduces an increase in the average high-temperature, shifting from a refreshing 58.8°F (14.9°C) in April to a pleasant 70.9°F (21.6°C). Weather in May »
Weather in June
June, the first month of the summer in Essex, is a moderately hot month, with an average temperature fluctuating between 62.2°F (16.8°C) and 79.3°F (26.3°C). Essex in June denotes a subtle temperature transition, adjusting from an average high of an agreeable 70.9°F (21.6°C) in May to a moderately hot 79.3°F (26.3°C). Weather in June »
Weather in July
July, like June, in Essex, Illinois, is a moderately hot summer month, with an average temperature fluctuating between 81.1°F (27.3°C) and 64.4°F (18°C). The temperatures reach their highest averages in July, with highs of 81.1°F (27.3°C) and lows of 64.4°F (18°C). Throughout July, the heat index is calculated to be a hot 87.8°F (31°C). Weather in July »
Weather in August
The last month of the summer, August, is another warm month in Essex, Illinois, with an average temperature ranging between min 62.2°F (16.8°C) and max 79.7°F (26.5°C). Essex observes a minor difference in average high-temperatures between July's 81.1°F (27.3°C) and August's 79.7°F (26.5°C). Weather in August »
Weather in September
The first month of the autumn, September, is also a moderately hot month in Essex, Illinois, with temperature in the range of an average high of 74.8°F (23.8°C) and an average low of 56.8°F (13.8°C). September experiences an average high-temperature of a still moderately hot 74.8°F (23.8°C), barely different from August's 79.7°F (26.5°C). Weather in September »
Weather in October
October, like September, in Essex, Illinois, is another refreshing autumn month, with an average temperature ranging between min 46.2°F (7.9°C) and max 62.1°F (16.7°C). October's arrival correlates with a reduction in the average high-temperature, down from a warm 74.8°F (23.8°C) in September to a comfortable 62.1°F (16.7°C). Weather in October »
Weather in November
November, the last month of the autumn in Essex, is also a frosty month, with an average temperature ranging between max 47.3°F (8.5°C) and min 34.2°F (1.2°C). The onset of November marks a clear decrease in the average high-temperature, dropping from an enjoyable 62.1°F (16.7°C) in October to a frosty 47.3°F (8.5°C). Weather in November »
Weather in December
The first month of the winter, December, is still a cold month in Essex, Illinois, with an average temperature varying between 35.6°F (2°C) and 25.7°F (-3.5°C). During the transition into December, Essex observes a decrease in the average high-temperature, falling from a chilly 47.3°F (8.5°C) in November to an icy 35.6°F (2°C). Weather in December »
Updated: Aug 29, 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 time of the year is the coldest?
Essex's coldest temperatures are experienced in January, with average high temperatures of 29.8°F (-1.2°C) and lows of 18°F (-7.8°C).
How much does it rain?
Throughout the year, in Essex, there are 140.4 rainfall days, and 21.5" (546mm) of precipitation is accumulated.
When does it snow?
Months with snowfall are January through April, October through December.
How many days does it snow?
In Essex, during the entire year, snow falls for 38.1 days and aggregates up to 9.13" (232mm) of snow.
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 are the months with the lowest UV index?
The months with the lowest UV index are January and December, with an average maximum UV index of 1.
What is the driest month?
February is the month with the least rainfall. Rain falls for 5.1 days and accumulates 0.98" (25mm) of precipitation.
What is the snowiest month?
The month with the most snowfall is February, when snow falls for 8.9 days and typically aggregates up to 2.52" (64mm) 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 rainiest month?
The month with the most rainfall is May, when the rain falls for 17.1 days and typically aggregates up to 2.91" (74mm) of precipitation.
When it does not snow?
May through September are months without snowfall.
When are the longest days?
The month with the longest days is June, with an average of 15h and 6min of daylight.
What month has the most sunshine?
The month with the most sunshine is June, with an average of 9.9h of sunshine.
What is the month with the highest UV index?
June and July, with an average maximum UV index of 6, are months with the highest UV index.
What are the warmest months?
With its average high temperature of 81.1°F (27.3°C) and a low of 64.4°F (18°C), July is regarded as the warmest month.
What is the most humid month?
With an average relative humidity of 84%, July is the most humid month in Essex.
What is the least humid month?
With an average relative humidity of 72%, October is the least humid month.
What is the month with the shortest days?
December has the shortest days of the year, with an average of 9h and 18min of daylight.
Average temperature
Essex, IL
The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (29.8°F).
The month with the highest average low temperature is July (64.4°F).
The coldest month (with the lowest average low temperature) is January (18°F).
Average pressure
Essex, IL
- Average pressure in January:
30.12"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:
29.92"Hg
- Average pressure in July:
29.97"Hg - Average pressure in August:
29.98"Hg - Average pressure in September:
30.03"Hg - Average pressure in October:
30.01"Hg - Average pressure in November:
30.1"Hg - Average pressure in December:
30.1"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed
Essex, IL
- Average wind speed in January:
10.1mph - Average wind speed in February:
9.9mph - Average wind speed in March:
9.8mph - Average wind speed in April:
10.1mph - Average wind speed in May:
8.6mph - Average wind speed in June:
7.5mph
- Average wind speed in July:
6.2mph - Average wind speed in August:
6mph - Average wind speed in September:
7.1mph - Average wind speed in October:
8.9mph - Average wind speed in November:
9.6mph - Average wind speed in December:
9.4mph
The windiest months (with the highest average wind speed) are January and April (10.1mph).
The calmest month (with the lowest average wind speed) is August (6mph).
Average humidity
Essex, IL
The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (72%).
Average rainfall
Essex, IL
- Average rainfall in January:
1.06" - Average rainfall in February:
0.98" - Average rainfall in March:
1.34" - Average rainfall in April:
2.28" - Average rainfall in May:
2.91" - Average rainfall in June:
2.64"
- Average rainfall in July:
2.4" - Average rainfall in August:
2.13" - Average rainfall in September:
1.65" - Average rainfall in October:
1.97" - Average rainfall in November:
1.06" - Average rainfall in December:
1.06"
The wettest month (with the highest rainfall) is May (2.91").
The driest month (with the least rainfall) is February (0.98").
Average rainfall days
Essex, IL
- Average rainfall days in January:
5.3 days - Average rainfall days in February:
5.1 days - Average rainfall days in March:
11 days - Average rainfall days in April:
14.3 days - Average rainfall days in May:
17.1 days - Average rainfall days in June:
16.9 days
- Average rainfall days in July:
17.3 days - Average rainfall days in August:
14.8 days - Average rainfall days in September:
12.2 days - Average rainfall days in October:
11.2 days - Average rainfall days in November:
8 days - Average rainfall days in December:
7.2 days
The month with the highest number of rainy days is July (17.3 days).
The month with the least rainy days is February (5.1 days).
Average snowfall
Essex, IL
The month with the highest snowfall is February (2.52").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days
Essex, IL
- Average snowfall days in January:
11.5 days - Average snowfall days in February:
8.9 days - Average snowfall days in March:
5.5 days - Average snowfall days in April:
1.3 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:
0.3 days - Average snowfall days in November:
2.1 days - Average snowfall days in December:
8.5 days
The month with the highest number of snowfall days is January (11.5 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight / Average sunshine
Essex, 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 2min
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 18min).
- Average sunshine in January:
3h and 5min - Average sunshine in February:
4h and 0min - Average sunshine in March:
6h and 1min - Average sunshine in April:
7h and 5min - Average sunshine in May:
8h and 5min - Average sunshine in June:
9h and 5min
- Average sunshine in July:
9h and 5min - Average sunshine in August:
9h and 5min - Average sunshine in September:
8h and 5min - Average sunshine in October:
6h and 0min - Average sunshine in November:
5h and 1min - Average sunshine in December:
4h and 2min
The month with the most sunshine is June (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days
Essex, IL
- Average sunshine days in January:
15.5 days - Average sunshine days in February:
14.3 days - Average sunshine days in March:
14.5 days - Average sunshine days in April:
12.2 days - Average sunshine days in May:
11 days - Average sunshine days in June:
10 days
- Average sunshine days in July:
9.5 days - Average sunshine days in August:
10.9 days - Average sunshine days in September:
14.9 days - Average sunshine days in October:
17.2 days - Average sunshine days in November:
19.3 days - Average sunshine days in December:
17.3 days
The month with the most sunshine days is November (19.3 days).
The month with the least sunshine days is July (9.5 days).
Average UV index
Essex, IL
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover
Essex, IL
The month with the most cloud cover is January (Cloud cover 59).
The months with the least cloud cover are August and September (Cloud cover 33).
Average visibility
Essex, IL
The months with the highest visibility are January, February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are July and August (5mi).
Essex, Illinois, USA
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