Climate and monthly weather forecastMarengo, IN
Climate and monthly weather forecast
Weather in January
January, the same as December, is a wintry winter month in Marengo, Indiana, with an average temperature varying between 37.4°F (3°C) and 24.4°F (-4.2°C). January proves to be the coldest month, recording an average maximum temperature of 37.4°F (3°C) and a minimum temperature of 24.4°F (-4.2°C). Weather in January »Weather in February
The last month of the winter, February, is also an icy month in Marengo, Indiana, with temperature in the range of an average high of 42.3°F (5.7°C) and an average low of 27.9°F (-2.3°C). February's presence records an average high-temperature of a still cold 42.3°F (5.7°C), closely mirroring January's climate. Weather in February »Weather in March
The first month of the spring, March, is a fresh month in Marengo, Indiana, with an average temperature varying between 52.9°F (11.6°C) and 36.9°F (2.7°C). March brings a rise in the average high-temperature, transitioning from February's cold 42.3°F (5.7°C) to a cool 52.9°F (11.6°C). Weather in March »Weather in April
April is an enjoyable spring month in Marengo, Indiana, with an average temperature fluctuating between 46.2°F (7.9°C) and 64.8°F (18.2°C). Marengo's transition into April sees a rise in the average high-temperature, advancing from a fresh 52.9°F (11.6°C) in March to a refreshing 64.8°F (18.2°C). Weather in April »Weather in May
May, the last month of the spring in Marengo, is a warm month, with an average temperature fluctuating between 55.9°F (13.3°C) and 74.7°F (23.7°C). Marengo, Indiana, sees an increase in average high-temperatures during May, moving from a refreshing 64.8°F (18.2°C) in April to a moderately hot 74.7°F (23.7°C). Weather in May »Weather in June
The first month of the summer, June, is still a warm month in Marengo, Indiana, with an average temperature fluctuating between 63.5°F (17.5°C) and 83.3°F (28.5°C). As Marengo transitions into June, the average high-temperature is observed to slightly rise from a warm 74.7°F (23.7°C) in May to a still moderately hot 83.3°F (28.5°C). Weather in June »Weather in July
July is a tropical summer month in Marengo, Indiana, with temperature in the range of an average high of 86.4°F (30.2°C) and an average low of 66.2°F (19°C). Temperature records mark July as the warmest month, with highs averaging 86.4°F (30.2°C) and lows at 66.2°F (19°C). July's mean heat index is computed to be a very hot 100.4°F (38°C). Weather in July »Weather in August
The last month of the summer, August, is another warm month in Marengo, Indiana, with an average temperature fluctuating between 85.1°F (29.5°C) and 64.6°F (18.1°C). Transitioning into August, Marengo records an average high-temperature of a moderately hot 85.1°F (29.5°C), almost identical to July's 86.4°F (30.2°C). Weather in August »Weather in September
The first month of the autumn, September, is also a moderately hot month in Marengo, Indiana, with an average temperature fluctuating between 59.4°F (15.2°C) and 79°F (26.1°C). In Marengo, entering September brings a subtle temperature decrement, reducing from August's 85.1°F (29.5°C) to a still warm 79°F (26.1°C). Weather in September »Weather in October
October, like September, in Marengo, Indiana, is another comfortable autumn month, with an average temperature fluctuating between 47.3°F (8.5°C) and 65.7°F (18.7°C). In October, the average high-temperature goes from a warm 79°F (26.1°C) in September to a refreshing 65.7°F (18.7°C). Weather in October »Weather in November
November, the last month of the autumn in Marengo, is another cool month, with an average temperature ranging between max 52°F (11.1°C) and min 36.7°F (2.6°C). As October shifts into November, a slight alteration in temperatures is observed, with average highs reducing from an enjoyable 65.7°F (18.7°C) to a fresh 52°F (11.1°C). Weather in November »Weather in December
December, the first month of the winter in Marengo, is still a chilly month, with an average temperature fluctuating between 42.8°F (6°C) and 30.9°F (-0.6°C). December's onset brings a slight change in high-temperatures, falling from a fresh 52°F (11.1°C) in November to a chilly 42.8°F (6°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
Marengo records the coldest temperatures in January, averaging a high of 37.4°F (3°C) and a low of 24.4°F (-4.2°C).
Throughout the year, in Marengo, Indiana, there are 137.1 rainfall days, and 20.28" (515mm) of precipitation is accumulated.
Months with snowfall are January through April, November and December.
In Marengo, during the entire year, snow falls for 23.6 days and aggregates up to 3.46" (88mm) of snow.
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Marengo.
The months with the highest humidity in Marengo, Indiana, are February and December, with an average relative humidity of 81%.
February is the month with the most snowfall in Marengo. Snow falls for 6.5 days and accumulates 0.98" (25mm) of snow.
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from EST to EDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from EDT to EST.
In Marengo, snow does not fall in May through October.
June has the longest days of the year in Marengo, Indiana, with an average of 14h and 48min of daylight.
June and July, with an average of 10h of sunshine, are months with the most sunshine in Marengo.
June through August, with an average maximum UV index of 6, are months with the highest UV index in Marengo, Indiana.
Marengo's temperatures peak on average in July, reaching 86.4°F (30.2°C) at their highest and 66.2°F (19°C) at their lowest.
The month with the most rainfall in Marengo is July, when the rain falls for 15.2 days and typically aggregates up to 2.24" (57mm) of precipitation.
The month with the least rainfall in Marengo, Indiana, is September, when the rain falls for 10.6 days and typically collects 0.98" (25mm) of precipitation.
October is the least humid month in Marengo, with an average relative humidity of 74%.
December has the shortest days of the year in Marengo, with an average of 9h and 30min of daylight.
December has the least sunshine of the year, with an average of 4.1h of sunshine.
Average temperature
Marengo, IN
The warmest month (with the highest average high temperature) is July (86.4°F).
The month with the lowest average high temperature is January (37.4°F).
The month with the highest average low temperature is July (66.2°F).
The coldest month (with the lowest average low temperature) is January (24.4°F).
Average pressure
Marengo, IN
- 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:
29.96"Hg - Average pressure in May:
29.98"Hg - Average pressure in June:
29.94"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:
30.04"Hg - Average pressure in November:
30.14"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 (29.94"Hg).
Average wind speed
Marengo, IN
- Average wind speed in January:
7.5mph - Average wind speed in February:
7.5mph - Average wind speed in March:
7.3mph - Average wind speed in April:
7.5mph - Average wind speed in May:
6.2mph - Average wind speed in June:
5.6mph
- Average wind speed in July:
4.8mph - Average wind speed in August:
4.8mph - Average wind speed in September:
5.3mph - Average wind speed in October:
6.4mph - Average wind speed in November:
6.6mph - Average wind speed in December:
6.9mph
The windiest months (with the highest average wind speed) are January, February and April (7.5mph).
The calmest months (with the lowest average wind speed) are July and August (4.8mph).
Average humidity
Marengo, IN
The months with the highest relative humidity are February and December (81%).
The month with the lowest relative humidity is October (74%).
Average rainfall
Marengo, IN
- Average rainfall in January:
1.42" - Average rainfall in February:
1.42" - Average rainfall in March:
1.73" - Average rainfall in April:
2.17" - Average rainfall in May:
2.17" - Average rainfall in June:
1.97"
- Average rainfall in July:
2.24" - Average rainfall in August:
1.77" - Average rainfall in September:
0.98" - Average rainfall in October:
1.42" - Average rainfall in November:
1.61" - Average rainfall in December:
1.38"
The wettest month (with the highest rainfall) is July (2.24").
The driest month (with the least rainfall) is September (0.98").
Average rainfall days
Marengo, IN
- Average rainfall days in January:
8.6 days - Average rainfall days in February:
8.8 days - Average rainfall days in March:
11.5 days - Average rainfall days in April:
14.4 days - Average rainfall days in May:
16.3 days - Average rainfall days in June:
13.3 days
- Average rainfall days in July:
15.2 days - Average rainfall days in August:
12.8 days - Average rainfall days in September:
10.6 days - Average rainfall days in October:
9 days - Average rainfall days in November:
8.4 days - Average rainfall days in December:
8.2 days
The month with the highest number of rainy days is May (16.3 days).
The month with the least rainy days is December (8.2 days).
Average snowfall
Marengo, IN
The month with the highest snowfall is February (0.98").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days
Marengo, IN
- Average snowfall days in January:
6.6 days - Average snowfall days in February:
6.5 days - Average snowfall days in March:
3.1 days - Average snowfall days in April:
0.4 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:
0.2 days - Average snowfall days in November:
1.8 days - Average snowfall days in December:
5 days
The month with the highest number of snowfall days is January (6.6 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight / Average sunshine
Marengo, IN
- Average daylight in January:
9h and 54min - Average daylight in February:
10h and 48min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 12min - Average daylight in May:
14h and 18min - Average daylight in June:
14h and 48min
- Average daylight in July:
14h and 30min - 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 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in January:
4h and 18min - Average sunshine in February:
5h and 6min - Average sunshine in March:
6h and 6min - Average sunshine in April:
7h and 6min - Average sunshine in May:
8h and 24min - Average sunshine in June:
10h and 0min
- Average sunshine in July:
10h and 0min - Average sunshine in August:
9h and 18min - Average sunshine in September:
8h and 12min - Average sunshine in October:
7h and 0min - Average sunshine in November:
5h and 24min - Average sunshine in December:
4h and 6min
The months with the most sunshine are June and July (Average sunshine: 10h and 0min).
The month with the least sunshine is December (Average sunshine: 4h and 6min).
Average sunshine days
Marengo, IN
- Average sunshine days in January:
18 days - Average sunshine days in February:
14 days - Average sunshine days in March:
16.3 days - Average sunshine days in April:
13.8 days - Average sunshine days in May:
12 days - Average sunshine days in June:
14.3 days
- Average sunshine days in July:
13.3 days - Average sunshine days in August:
16.3 days - Average sunshine days in September:
17.7 days - Average sunshine days in October:
20.5 days - Average sunshine days in November:
18.8 days - Average sunshine days in December:
17.9 days
The month with the most sunshine days is October (20.5 days).
The month with the least sunshine days is May (12 days).
Average UV index
Marengo, IN
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
Marengo, IN
The month with the most cloud cover is January (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility
Marengo, IN
The months with the highest visibility are April, October and November (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September and December (5mi).
