Climate and monthly weather forecastMount Olive, IL
Climate and monthly weather forecast
Weather in January
January, the same as December, is an icy winter month in Mount Olive, Illinois, with temperature in the range of an average high of 35.6°F (2°C) and an average low of 22.6°F (-5.2°C). January, characterized by an average high temperature of 35.6°F (2°C) and a low temperature of 22.6°F (-5.2°C), is generally the coldest month. Weather in January »Weather in February
The last month of the winter, February, is also an icy month in Mount Olive, Illinois, with an average temperature varying between 26.4°F (-3.1°C) and 40.6°F (4.8°C). Mount Olive, Illinois, signifies an average high-temperature of a still icy 40.6°F (4.8°C) in February, closely mirroring the 35.6°F (2°C) of January. Weather in February »Weather in March
March, the first month of the spring in Mount Olive, is a cool month, with an average temperature ranging between max 52.3°F (11.3°C) and min 36.9°F (2.7°C). The transition to March introduces an increase in the average high-temperature, shifting from a wintry 40.6°F (4.8°C) in February to a cool 52.3°F (11.3°C). Weather in March »Weather in April
April in Mount Olive, Illinois, is a refreshing spring month, with an average temperature ranging between min 46.6°F (8.1°C) and max 63.9°F (17.7°C). The arrival of April sees a shift in the average high-temperature, moving from a cool 52.3°F (11.3°C) in March to an enjoyable 63.9°F (17.7°C). Weather in April »Weather in May
May, the last month of the spring in Mount Olive, is a warm month, with temperature in the range of an average low of 56.7°F (13.7°C) and an average high of 73.9°F (23.3°C). Mount Olive sees a rise in temperature during May, with average high-temperatures transitioning from a refreshing 63.9°F (17.7°C) in April to a moderately hot 73.9°F (23.3°C). Weather in May »Weather in June
June, the first month of the summer in Mount Olive, is still a warm month, with an average temperature fluctuating between 82.2°F (27.9°C) and 65.5°F (18.6°C). June comes with a subtle rise, with the average high-temperature adjusting from 73.9°F (23.3°C) in May to a still moderately hot 82.2°F (27.9°C). Weather in June »Weather in July
July, the same as June, is another warm summer month in Mount Olive, Illinois, with an average temperature varying between 84.2°F (29°C) and 67.5°F (19.7°C). July, recording an average high temperature of 84.2°F (29°C) and a low temperature of 67.5°F (19.7°C), is Mount Olive's warmest month. The heat index in July is estimated at a very hot 95°F (35°C). Weather in July »Weather in August
August, the last month of the summer in Mount Olive, is also a moderately hot month, with an average temperature fluctuating between 65.5°F (18.6°C) and 82.9°F (28.3°C). Mount Olive registers an average high-temperature of a still moderately hot 82.9°F (28.3°C) with the arrival of August, showing minor deviation from the preceding month. Weather in August »Weather in September
September, the first month of the autumn in Mount Olive, is also a moderately hot month, with an average temperature varying between 77.9°F (25.5°C) and 59.4°F (15.2°C). September reports an average high-temperature of a still warm 77.9°F (25.5°C), slightly varied from August's 82.9°F (28.3°C). Weather in September »Weather in October
October, like September, in Mount Olive, Illinois, is another refreshing autumn month, with an average temperature ranging between min 48.4°F (9.1°C) and max 65.3°F (18.5°C). The start of October involves a temperature drop, moving from a warm 77.9°F (25.5°C) in September to an enjoyable 65.3°F (18.5°C). Weather in October »Weather in November
The last month of the autumn, November, is also a fresh month in Mount Olive, Illinois, with an average temperature fluctuating between 36.9°F (2.7°C) and 51.6°F (10.9°C). The start of November signals a decrease in the average high-temperature, transitioning from a comfortable 65.3°F (18.5°C) in October to a cool 51.6°F (10.9°C). Weather in November »Weather in December
December, the first month of the winter in Mount Olive, is still a cold month, with an average temperature ranging between max 40.3°F (4.6°C) and min 29.1°F (-1.6°C). December brings a drop in Mount Olive's average high-temperature, falling from a fresh 51.6°F (10.9°C) in November to a cold 40.3°F (4.6°C). Weather in December »Updated: Jul 4, 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
With average temperatures fluctuating between a high of 35.6°F (2°C) and a low of 22.6°F (-5.2°C), January stands out as the coldest month.
Throughout the year, in Mount Olive, there are 121.4 rainfall days, and 14.72" (374mm) of precipitation is accumulated.
January through March, November and December are months with snowfall.
In Mount Olive, during the entire year, snow falls for 19.8 days and aggregates up to 2.91" (74mm) of snow.
January has the least sunshine of the year, with an average of 4.4h of sunshine.
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2.
The month with the least rainfall is February, when the rain falls for 5.9 days and typically collects 0.67" (17mm) of precipitation.
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.
April through October are months without snowfall.
The month with the most rainfall is June, when the rain falls for 13.4 days and typically aggregates up to 1.89" (48mm) of precipitation.
With an average of 14h and 54min of daylight, June has the longest days of the year in Mount Olive.
The months with the most sunshine are June and July, with an average of 10.3h of sunshine.
The months with the highest UV index in Mount Olive are June through August, with an average maximum UV index of 6.
July, on average, is the warmest month, registering a high temperature of 84.2°F (29°C) and a low of 67.5°F (19.7°C).
With an average relative humidity of 81%, July is the most humid month.
With an average relative humidity of 71%, October is the least humid month in Mount Olive.
December is the month with the most snowfall. Snow falls for 3.8 days and accumulates 0.98" (25mm) of snow.
The month with the shortest days in Mount Olive is December, with an average of 9h and 30min of daylight.
Average temperature
Mount Olive, IL
The warmest month (with the highest average high temperature) is July (84.2°F).
The month with the lowest average high temperature is January (35.6°F).
The month with the highest average low temperature is July (67.5°F).
The coldest month (with the lowest average low temperature) is January (22.6°F).
Average pressure
Mount Olive, IL
- Average pressure in January:
30.16"Hg - Average pressure in February:
30.12"Hg - Average pressure in March:
30.07"Hg - Average pressure in April:
29.94"Hg - Average pressure in May:
29.95"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:
30.02"Hg - Average pressure in October:
30.03"Hg - Average pressure in November:
30.12"Hg - Average pressure in December:
30.13"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed
Mount Olive, IL
- Average wind speed in January:
10mph - Average wind speed in February:
9.9mph - Average wind speed in March:
9.6mph - Average wind speed in April:
9.6mph - Average wind speed in May:
7.8mph - Average wind speed in June:
6.8mph
- Average wind speed in July:
5.8mph - Average wind speed in August:
5.9mph - Average wind speed in September:
6.4mph - Average wind speed in October:
8.5mph - Average wind speed in November:
9.2mph - Average wind speed in December:
9.3mph
The windiest month (with the highest average wind speed) is January (10mph).
The calmest month (with the lowest average wind speed) is July (5.8mph).
Average humidity
Mount Olive, IL
The month with the highest relative humidity is July (81%).
The month with the lowest relative humidity is October (71%).
Average rainfall
Mount Olive, IL
- Average rainfall in January:
1.02" - Average rainfall in February:
0.67" - Average rainfall in March:
1.02" - Average rainfall in April:
1.57" - Average rainfall in May:
1.81" - Average rainfall in June:
1.89"
The wettest month (with the highest rainfall) is June (1.89").
The driest month (with the least rainfall) is February (0.67").
Average rainfall days
Mount Olive, IL
- Average rainfall days in January:
5.8 days - Average rainfall days in February:
5.9 days - Average rainfall days in March:
10.7 days - Average rainfall days in April:
12.5 days - Average rainfall days in May:
13.9 days - Average rainfall days in June:
13.4 days
- Average rainfall days in July:
14 days - Average rainfall days in August:
12.1 days - Average rainfall days in September:
10.4 days - Average rainfall days in October:
8.5 days - Average rainfall days in November:
7.5 days - Average rainfall days in December:
6.7 days
The month with the highest number of rainy days is July (14 days).
The month with the least rainy days is January (5.8 days).
Average snowfall
Mount Olive, IL
The month with the highest snowfall is December (0.98").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days
Mount Olive, IL
- Average snowfall days in January:
6.3 days - Average snowfall days in February:
5.5 days - Average snowfall days in March:
2.5 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:
1.3 days - Average snowfall days in December:
3.8 days
The month with the highest number of snowfall days is January (6.3 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight / Average sunshine
Mount Olive, IL
- Average daylight in January:
9h and 48min - Average daylight in February:
10h and 48min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 18min - Average daylight in May:
14h and 18min - Average daylight in June:
14h and 54min
- Average daylight in July:
14h and 36min - Average daylight in August:
13h and 36min - Average daylight in September:
12h and 24min - Average daylight in October:
11h and 12min - Average daylight in November:
10h and 6min - Average daylight in December:
9h and 30min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in January:
4h and 24min - Average sunshine in February:
4h and 30min - Average sunshine in March:
6h and 24min - Average sunshine in April:
8h and 18min - Average sunshine in May:
9h and 18min - Average sunshine in June:
10h and 18min
- Average sunshine in July:
10h and 18min - Average sunshine in August:
9h and 54min - Average sunshine in September:
9h and 18min - Average sunshine in October:
6h and 12min - Average sunshine in November:
5h and 30min - Average sunshine in December:
4h and 48min
The months with the most sunshine are June and July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 24min).
Average sunshine days
Mount Olive, IL
- Average sunshine days in January:
20.9 days - Average sunshine days in February:
17.2 days - Average sunshine days in March:
17 days - Average sunshine days in April:
14.6 days - Average sunshine days in May:
13.6 days - Average sunshine days in June:
12.8 days
- Average sunshine days in July:
12.5 days - Average sunshine days in August:
15.3 days - Average sunshine days in September:
17.2 days - Average sunshine days in October:
19.7 days - Average sunshine days in November:
20.4 days - Average sunshine days in December:
20.5 days
The month with the most sunshine days is January (20.9 days).
The month with the least sunshine days is July (12.5 days).
Average UV index
Mount Olive, IL
The months with the highest UV index are 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
Mount Olive, IL
The month with the most cloud cover is January (Cloud cover 52).
The months with the least cloud cover are June, July, August and September (Cloud cover 29).
Average visibility
Mount Olive, 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).
