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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 Joppa, Illinois, is a wintry winter month, with an average temperature fluctuating between 28°F (-2.2°C) and 41.4°F (5.2°C). The coldest time of the year is January, with temperatures averaging a high of 41.4°F (5.2°C) and a low of 28°F (-2.2°C). Weather in January »
Weather in February
February, the last month of the winter in Joppa, is a chilly month, with an average temperature varying between 31.6°F (-0.2°C) and 45.7°F (7.6°C). Joppa experiences an average high-temperature of a chilly 45.7°F (7.6°C) in February, subtly different from January's 41.4°F (5.2°C). Weather in February »
Weather in March
The first month of the spring, March, is a refreshing month in Joppa, Illinois, with an average temperature ranging between min 40.5°F (4.7°C) and max 56.3°F (13.5°C). Joppa, Illinois, in March experiences an increase in the average high-temperature, moving from February's frosty 45.7°F (7.6°C) to a mild 56.3°F (13.5°C). Weather in March »
Weather in April
April in Joppa, Illinois, is an enjoyable spring month, with an average temperature varying between 67.1°F (19.5°C) and 49.5°F (9.7°C). As Joppa transitions into April, the average high-temperature shows a change, moving from a mild 56.3°F (13.5°C) in March to a still refreshing 67.1°F (19.5°C). Weather in April »
Weather in May
May, the last month of the spring in Joppa, is a moderately hot month, with an average temperature fluctuating between 76.5°F (24.7°C) and 59°F (15°C). Joppa's weather in May shows a rise in the average high-temperature, moving up from April's comfortable 67.1°F (19.5°C) to a warm 76.5°F (24.7°C). Weather in May »
Weather in June
June, the first month of the summer in Joppa, is still a warm month, with temperature in the range of an average low of 66.7°F (19.3°C) and an average high of 85.6°F (29.8°C). The onset of June marks an increase in the average high-temperature, moving from a warm 76.5°F (24.7°C) in May to a still moderately hot 85.6°F (29.8°C). Weather in June »
Weather in July
July is a tropical summer month in Joppa, Illinois, with temperature in the range of an average low of 68.9°F (20.5°C) and an average high of 88.3°F (31.3°C). Joppa experiences its highest average temperatures in July, reaching a peak of 88.3°F (31.3°C) and a minimum of 68.9°F (20.5°C). In July, the average heat index is estimated at an extremely hot 104°F (40°C). Weather in July »
Weather in August
August, the last month of the summer in Joppa, is another hot month, with an average temperature ranging between max 86.7°F (30.4°C) and min 67.3°F (19.6°C). Joppa's average high-temperature in August is a still hot 86.7°F (30.4°C), marking an insignificant difference from the 88.3°F (31.3°C) of July. Weather in August »
Weather in September
September, the first month of the autumn in Joppa, is also a moderately hot month, with an average temperature ranging between min 61.7°F (16.5°C) and max 81.5°F (27.5°C). September's onset records an average high-temperature of a warm 81.5°F (27.5°C), a near match to August's 86.7°F (30.4°C). Weather in September »
Weather in October
October, like September, is an agreeable autumn month in Joppa, Illinois, with an average temperature varying between 68.9°F (20.5°C) and 50.5°F (10.3°C). With the onset of October, Joppa's average high-temperature adjusts, receding from September's moderately hot 81.5°F (27.5°C) to a pleasant 68.9°F (20.5°C). Weather in October »
Weather in November
November, the last month of the autumn in Joppa, is another cool month, with an average temperature varying between 54.9°F (12.7°C) and 39.6°F (4.2°C). With the onset of November, Joppa experiences a modest temperature adjustment, with the average high-temperature receding from a pleasant 68.9°F (20.5°C) in October to a fresh 54.9°F (12.7°C). Weather in November »
Weather in December
The first month of the winter, December, is still a chilly month in Joppa, Illinois, with an average temperature varying between 33.3°F (0.7°C) and 45.5°F (7.5°C). The onset of December entails a temperature shift, as the average high-temperature decreases from a fresh 54.9°F (12.7°C) in November to a chilly 45.5°F (7.5°C). Weather in December »
Updated: Jun 11, 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 are the coldest months?
Joppa notes the coldest temperatures in January, with a average high of 41.4°F (5.2°C) and a low of 28°F (-2.2°C).
How many days does it rain?
In Joppa, during the entire year, the rain falls for 160.7 days and collects up to 36.73" (933mm) of precipitation.
When does it snow?
January through April, November and December are months with snowfall.
How many days does it snow?
Throughout the year, there are 12.9 snowfall days, and 4.33" (110mm) of snow is accumulated.
What is the month with the least sunshine?
January has the least sunshine of the year, with an average of 4.7h of sunshine.
When is the lowest UV index?
The months with the lowest UV index in Joppa are January, February and December, with an average maximum UV index of 2.
When does it snow the most?
The month with the most snowfall is February, when snow falls for 3.8 days and typically aggregates up to 1.61" (41mm) of snow.
What is the most humid month?
March and May, with an average relative humidity of 79%, are most humid months.
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 16.1 days and typically aggregates up to 4.29" (109mm) of precipitation.
When it does not snow?
May through October are months without snowfall.
What are the months with 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?
With an average of 14h and 42min of daylight, June has the longest days of the year.
What is the month with the most sunshine?
The months with the most sunshine are June and July, with an average of 10.6h of sunshine.
What time of the year is the hottest?
Joppa reaches its average highest temperatures in July, measuring 88.3°F (31.3°C) at the peak and 68.9°F (20.5°C) at the lowest.
What is the driest month?
The month with the least rainfall is September, when the rain falls for 11.1 days and typically collects 1.5" (38mm) of precipitation.
What is the least humid month?
October is the least humid month, with an average relative humidity of 70%.
What is the month with the shortest days?
December has the shortest days of the year, with an average of 9h and 42min of daylight.
Average temperature
Joppa, IL
The warmest month (with the highest average high temperature) is July (88.3°F).
The month with the lowest average high temperature is January (41.4°F).
The month with the highest average low temperature is July (68.9°F).
The coldest month (with the lowest average low temperature) is January (28°F).
Average pressure
Joppa, IL
- Average pressure in January:
30.17"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:
29.98"Hg - Average pressure in June:
29.95"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:
30.05"Hg - Average pressure in November:
30.14"Hg - Average pressure in December:
30.14"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed
Joppa, IL
- Average wind speed in January:
8.9mph - Average wind speed in February:
8.8mph - Average wind speed in March:
8.9mph - Average wind speed in April:
8.9mph - Average wind speed in May:
7.5mph - Average wind speed in June:
6.3mph
- Average wind speed in July:
5.6mph - Average wind speed in August:
5.6mph - Average wind speed in September:
6.3mph - Average wind speed in October:
7.5mph - Average wind speed in November:
8.1mph - Average wind speed in December:
8.3mph
The windiest months (with the highest average wind speed) are January, March and April (8.9mph).
The calmest months (with the lowest average wind speed) are July and August (5.6mph).
Average humidity
Joppa, IL
The months with the highest relative humidity are March and May (79%).
The month with the lowest relative humidity is October (70%).
Average rainfall
Joppa, IL
- Average rainfall in January:
2.48" - Average rainfall in February:
3.78" - Average rainfall in March:
3.78" - Average rainfall in April:
4.29" - Average rainfall in May:
3.78" - Average rainfall in June:
2.91"
The wettest month (with the highest rainfall) is April (4.29").
The driest month (with the least rainfall) is September (1.5").
Average rainfall days
Joppa, IL
- Average rainfall days in January:
11 days - Average rainfall days in February:
11.9 days - Average rainfall days in March:
15.6 days - Average rainfall days in April:
16.1 days - Average rainfall days in May:
17.3 days - Average rainfall days in June:
15.1 days
- Average rainfall days in July:
15.3 days - Average rainfall days in August:
14.6 days - Average rainfall days in September:
11.1 days - Average rainfall days in October:
10.2 days - Average rainfall days in November:
11 days - Average rainfall days in December:
11.5 days
The month with the highest number of rainy days is May (17.3 days).
The month with the least rainy days is October (10.2 days).
Average snowfall
Joppa, IL
The month with the highest snowfall is February (1.61").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days
Joppa, IL
- Average snowfall days in January:
4.3 days - Average snowfall days in February:
3.8 days - Average snowfall days in March:
1.7 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:
0.8 days - Average snowfall days in December:
2 days
The month with the highest number of snowfall days is January (4.3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight / Average sunshine
Joppa, 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 2min - Average daylight in August:
13h and 3min - 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 42min).
- Average sunshine in January:
4h and 4min - 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 4min
- Average sunshine in July:
10h and 4min - Average sunshine in August:
10h and 2min - Average sunshine in September:
9h and 4min - Average sunshine in October:
6h and 5min - Average sunshine in November:
5h and 4min - Average sunshine in December:
4h and 5min
The months with the most sunshine are June and July (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 4h and 42min).
Average sunshine days
Joppa, IL
- Average sunshine days in January:
16.5 days - Average sunshine days in February:
13.6 days - Average sunshine days in March:
13 days - Average sunshine days in April:
12.1 days - Average sunshine days in May:
11 days - Average sunshine days in June:
12.8 days
- Average sunshine days in July:
12.8 days - Average sunshine days in August:
14.4 days - Average sunshine days in September:
16.9 days - Average sunshine days in October:
19.3 days - Average sunshine days in November:
17.9 days - Average sunshine days in December:
17.7 days
The month with the most sunshine days is October (19.3 days).
The month with the least sunshine days is May (11 days).
Average UV index
Joppa, 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
Joppa, IL
The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is September (Cloud cover 26).
Average visibility
Joppa, 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).
Joppa, Illinois, USA
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