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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 Martinsville, Illinois, is another cold winter month, with an average temperature ranging between max 34.7°F (1.5°C) and min 22.6°F (-5.2°C). The month of January, characterized by an average high of 34.7°F (1.5°C) and a low of 22.6°F (-5.2°C), is recognized as the coldest. Weather in January »
Weather in February
February, the last month of the winter in Martinsville, is another cold month, with an average temperature ranging between max 39.7°F (4.3°C) and min 26.4°F (-3.1°C). In Martinsville, February's average high-temperature stands at a still icy 39.7°F (4.3°C), closely related to the preceding month. Weather in February »
Weather in March
The first month of the spring, March, is a cool month in Martinsville, Illinois, with an average temperature ranging between max 51.4°F (10.8°C) and min 36.5°F (2.5°C). March sees a temperature increase, moving from a cold 39.7°F (4.3°C) in February to a cool 51.4°F (10.8°C). Weather in March »
Weather in April
April is a comfortable spring month in Martinsville, Illinois, with an average temperature varying between 46.4°F (8°C) and 62.8°F (17.1°C). The start of April signals an increase in the average high-temperature, moving from a cool 51.4°F (10.8°C) in March to an enjoyable 62.8°F (17.1°C). Weather in April »
Weather in May
The last month of the spring, May, is a pleasant month in Martinsville, Illinois, with an average temperature varying between 73°F (22.8°C) and 56.7°F (13.7°C). The average high-temperature increases in May, moving from a refreshing 62.8°F (17.1°C) in April to an agreeable 73°F (22.8°C). Weather in May »
Weather in June
The first month of the summer, June, is a warm month in Martinsville, Illinois, with an average temperature varying between 64.9°F (18.3°C) and 81.1°F (27.3°C). As Martinsville transitions into June, the average high-temperature is observed to slightly rise from a pleasant 73°F (22.8°C) in May to a warm 81.1°F (27.3°C). Weather in June »
Weather in July
July, like June, in Martinsville, Illinois, is another warm summer month, with an average temperature fluctuating between 66.4°F (19.1°C) and 82.9°F (28.3°C). The highest temperatures are recorded in July, with averages reaching a high of 82.9°F (28.3°C) and a low of 66.4°F (19.1°C). During July, the heat index is estimated at a hot 91.4°F (33°C). Weather in July »
Weather in August
The last month of the summer, August, is also a moderately hot month in Martinsville, Illinois, with temperature in the range of an average low of 64°F (17.8°C) and an average high of 81.7°F (27.6°C). Martinsville's August showcases an average high-temperature of a still warm 81.7°F (27.6°C), hardly distinct from July's 82.9°F (28.3°C). Weather in August »
Weather in September
September, the first month of the autumn in Martinsville, is also a moderately hot month, with temperature in the range of an average high of 77.4°F (25.2°C) and an average low of 59.2°F (15.1°C). Martinsville experiences an average high-temperature of a still moderately hot 77.4°F (25.2°C) with the onset of September, subtly varied from August's 81.7°F (27.6°C). Weather in September »
Weather in October
October, the same as September, is another comfortable autumn month in Martinsville, Illinois, with an average temperature fluctuating between 48.4°F (9.1°C) and 64.2°F (17.9°C). In the transition to October, Martinsville observes a drop in the average high-temperature, moving from a moderately hot 77.4°F (25.2°C) in September to a comfortable 64.2°F (17.9°C). Weather in October »
Weather in November
The last month of the autumn, November, is also a fresh month in Martinsville, Illinois, with an average temperature ranging between min 36.5°F (2.5°C) and max 50.5°F (10.3°C). With November's onset, the weather shows a temperature decrease, transitioning from an enjoyable 64.2°F (17.9°C) in October to a fresh 50.5°F (10.3°C). Weather in November »
Weather in December
December, the first month of the winter in Martinsville, is also an icy month, with temperature in the range of an average high of 39.7°F (4.3°C) and an average low of 28.9°F (-1.7°C). In December, the meteorological conditions alter, with the average high-temperature shifting from a fresh 50.5°F (10.3°C) in November to a wintry 39.7°F (4.3°C). Weather in December »
Updated: Feb 12, 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 part of the year is the coldest in Martinsville?
Martinsville's January weather, with an average high temperature of 34.7°F (1.5°C) and an average low temperature of 22.6°F (-5.2°C), tends to be the coldest of the year.
How much does it rain in Martinsville?
Throughout the year, in Martinsville, there are 115.9 rainfall days, and 11.26" (286mm) of precipitation is accumulated.
When does it snow in Martinsville?
January through April, November and December are months with snowfall.
How much does it snow in Martinsville?
Throughout the year, in Martinsville, Illinois, there are 18.9 snowfall days, and 1.73" (44mm) of snow is accumulated.
What is the month with the least sunshine in Martinsville?
With an average of 4.1h of sunshine, January has the least sunshine of the year in Martinsville.
What is the driest month in Martinsville?
February is the month with the least rainfall. Rain falls for 6 days and accumulates 0.47" (12mm) of precipitation.
When is Daylight Saving Time (DST) in Martinsville?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Martinsville, 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 in Martinsville?
The month with the most rainfall in Martinsville is April, when the rain falls for 12.6 days and typically aggregates up to 1.54" (39mm) of precipitation.
When it does not snow in Martinsville?
May through October are months without snowfall in Martinsville, Illinois.
When are the longest days in Martinsville?
June has the longest days of the year, with an average of 14h and 54min of daylight.
What month has the most sunshine in Martinsville?
With an average of 10.4h of sunshine, June has the most sunshine of the year.
When is the highest UV index in Martinsville?
The months with the highest UV index in Martinsville are June through August, with an average maximum UV index of 6.
What is the warmest month in Martinsville?
July tends to be the warmest month in Martinsville, Illinois, with temperatures averaging a daily high of 82.9°F (28.3°C) and a low of 66.4°F (19.1°C).
What is the most humid month in Martinsville?
July is the most humid month in Martinsville, Illinois, with an average relative humidity of 83%.
What is the least humid month in Martinsville?
October is the least humid month, with an average relative humidity of 71%.
When does it snow the most in Martinsville?
December is the month with the most snowfall. Snow falls for 4 days and accumulates 0.47" (12mm) of snow.
What is the month with the shortest days in Martinsville?
With an average of 9h and 30min of daylight, December has the shortest days of the year in Martinsville, Illinois.
When is the lowest UV index in Martinsville?
With an average maximum UV index of 1, December is the month with the lowest UV index in Martinsville.
Average temperature
Martinsville, IL
The warmest month (with the highest average high temperature) is July (82.9°F).
The month with the lowest average high temperature is January (34.7°F).
The month with the highest average low temperature is July (66.4°F).
The coldest month (with the lowest average low temperature) is January (22.6°F).
Average pressure
Martinsville, IL
- Average pressure in January:
30.15"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:
29.93"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:
30.03"Hg - Average pressure in November:
30.13"Hg - Average pressure in December:
30.13"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed
Martinsville, IL
- Average wind speed in January:
10.4mph - Average wind speed in February:
10.4mph - Average wind speed in March:
10.1mph - Average wind speed in April:
10.1mph - Average wind speed in May:
8.4mph - Average wind speed in June:
7.3mph
- Average wind speed in July:
6.1mph - Average wind speed in August:
6.1mph - Average wind speed in September:
6.9mph - Average wind speed in October:
8.9mph - Average wind speed in November:
9.6mph - Average wind speed in December:
9.6mph
The windiest months (with the highest average wind speed) are January and February (10.4mph).
The calmest months (with the lowest average wind speed) are July and August (6.1mph).
Average humidity
Martinsville, IL
The month with the highest relative humidity is July (83%).
The month with the lowest relative humidity is October (71%).
Average rainfall
Martinsville, IL
- Average rainfall in January:
0.75" - Average rainfall in February:
0.47" - Average rainfall in March:
0.79" - Average rainfall in April:
1.54" - Average rainfall in May:
1.34" - Average rainfall in June:
1.38"
- Average rainfall in July:
1.22" - Average rainfall in August:
0.87" - Average rainfall in September:
0.55" - Average rainfall in October:
0.98" - Average rainfall in November:
0.59" - Average rainfall in December:
0.79"
The wettest month (with the highest rainfall) is April (1.54").
The driest month (with the least rainfall) is February (0.47").
Average rainfall days
Martinsville, IL
- Average rainfall days in January:
6.4 days - Average rainfall days in February:
6 days - Average rainfall days in March:
10 days - Average rainfall days in April:
12.6 days - Average rainfall days in May:
14.9 days - Average rainfall days in June:
12.6 days
- Average rainfall days in July:
12.5 days - Average rainfall days in August:
10.6 days - Average rainfall days in September:
9.5 days - Average rainfall days in October:
7.7 days - Average rainfall days in November:
6.6 days - Average rainfall days in December:
6.5 days
The month with the highest number of rainy days is May (14.9 days).
The month with the least rainy days is February (6 days).
Average snowfall
Martinsville, IL
The month with the highest snowfall is December (0.47").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days
Martinsville, IL
- Average snowfall days in January:
5.8 days - Average snowfall days in February:
4.7 days - Average snowfall days in March:
2.7 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:
1.4 days - Average snowfall days in December:
4 days
The month with the highest number of snowfall days is January (5.8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight / Average sunshine
Martinsville, IL
- Average daylight in January:
9h and 5min - 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 2min - Average daylight in June:
14h and 5min
- Average daylight in July:
14h and 4min - 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 0min - Average daylight in December:
9h and 3min
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 1min - Average sunshine in February:
4h and 2min - Average sunshine in March:
6h and 2min - Average sunshine in April:
8h and 1min - Average sunshine in May:
8h and 5min - Average sunshine in June:
10h and 2min
- Average sunshine in July:
10h and 1min - Average sunshine in August:
10h and 0min - Average sunshine in September:
9h and 0min - Average sunshine in October:
6h and 2min - Average sunshine in November:
5h and 2min - Average sunshine in December:
4h and 2min
The month with the most sunshine is June (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).
Average sunshine days
Martinsville, IL
- Average sunshine days in January:
20.6 days - Average sunshine days in February:
17.6 days - Average sunshine days in March:
17.3 days - Average sunshine days in April:
14.8 days - Average sunshine days in May:
12.4 days - Average sunshine days in June:
13.4 days
- Average sunshine days in July:
14.3 days - Average sunshine days in August:
16.5 days - Average sunshine days in September:
18.2 days - Average sunshine days in October:
21.2 days - Average sunshine days in November:
21 days - Average sunshine days in December:
20.8 days
The month with the most sunshine days is October (21.2 days).
The month with the least sunshine days is May (12.4 days).
Average UV index
Martinsville, IL
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover
Martinsville, IL
The month with the most cloud cover is January (Cloud cover 55).
The month with the least cloud cover is June (Cloud cover 30).
Average visibility
Martinsville, IL
The months with the highest visibility are January, February, March, April, May, June, July, September, October, November and December (6mi).
The month with the lowest visibility is August (5mi).
Martinsville, Illinois, USA
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