Climate and monthly weather forecastHarlansburg, IN
Climate and monthly weather forecast
Weather in January
January, the same as December, in Harlansburg, Indiana, is a freezing cold winter month, with an average temperature fluctuating between 19.2°F (-7.1°C) and 30.7°F (-0.7°C). The lowest temperatures are recorded in January, with averages reaching a high of 30.7°F (-0.7°C) and a low of 19.2°F (-7.1°C). Weather in January »Weather in February
The last month of the winter, February, is a cold month in Harlansburg, Indiana, with an average temperature ranging between max 35.1°F (1.7°C) and min 22.5°F (-5.3°C). February's advent presents an average high-temperature of a wintry 35.1°F (1.7°C), indicating a slight variation from the conditions of the previous month. Weather in February »Weather in March
March, the first month of the spring in Harlansburg, is a chilly month, with an average temperature varying between 46.9°F (8.3°C) and 32°F (0°C). March brings a rise in the average high-temperature, transitioning from February's icy 35.1°F (1.7°C) to a chilly 46.9°F (8.3°C). Weather in March »Weather in April
April in Harlansburg, Indiana, is a mild spring month, with temperature in the range of an average high of 58.6°F (14.8°C) and an average low of 42.1°F (5.6°C). The beginning of April signals a rise in the average high-temperature, moving from a chilly 46.9°F (8.3°C) in March to a moderate 58.6°F (14.8°C). Weather in April »Weather in May
The last month of the spring, May, is a pleasant month in Harlansburg, Indiana, with an average temperature fluctuating between 70.5°F (21.4°C) and 53.2°F (11.8°C). As Harlansburg, Indiana, welcomes May, the average high-temperature sees a rise, transitioning from a mild 58.6°F (14.8°C) in April to an agreeable 70.5°F (21.4°C). Weather in May »Weather in June
June, the first month of the summer in Harlansburg, is a warm month, with an average temperature ranging between max 78.1°F (25.6°C) and min 61.3°F (16.3°C). The transition from May to June brings a subtle temperature rise, with average high-temperatures increasing from an agreeable 70.5°F (21.4°C) to a moderately hot 78.1°F (25.6°C). Weather in June »Weather in July
July, the same as June, is another warm summer month in Harlansburg, Indiana, with an average temperature ranging between max 80.8°F (27.1°C) and min 64°F (17.8°C). In Harlansburg, the peak average temperatures are observed in July, with a high of 80.8°F (27.1°C) and a low of 64°F (17.8°C). The heat index in July is computed to be a tropical 86°F (30°C). Weather in July »Weather in August
The last month of the summer, August, is another warm month in Harlansburg, Indiana, with an average temperature fluctuating between 61.5°F (16.4°C) and 79.3°F (26.3°C). As August takes hold, the average high-temperature is a still moderately hot 79.3°F (26.3°C), nearly mirroring that of the previous month. Weather in August »Weather in September
The first month of the autumn, September, is also a moderately hot month in Harlansburg, Indiana, with temperature in the range of an average low of 55.6°F (13.1°C) and an average high of 73.9°F (23.3°C). The arrival of September suggests a slight decrease in the average high-temperature, moving from 79.3°F (26.3°C) in August to a still warm 73.9°F (23.3°C). Weather in September »Weather in October
October, like September, in Harlansburg, Indiana, is another enjoyable autumn month, with an average temperature fluctuating between 61.5°F (16.4°C) and 45.5°F (7.5°C). The beginning of October involves a decrease in the average high-temperature, transitioning from a moderately hot 73.9°F (23.3°C) in September to a refreshing 61.5°F (16.4°C). Weather in October »Weather in November
November, the last month of the autumn in Harlansburg, is another chilly month, with an average temperature fluctuating between 47.3°F (8.5°C) and 34.3°F (1.3°C). The average high-temperature drops in November, from October's comfortable 61.5°F (16.4°C) 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 Harlansburg, Indiana, with an average temperature fluctuating between 36.5°F (2.5°C) and 26.6°F (-3°C). With December's arrival, Harlansburg sees a decrease in average high-temperatures, moving from a chilly 47.3°F (8.5°C) in November to a wintry 36.5°F (2.5°C). Weather in December »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Harlansburg, IN
The warmest month (with the highest average high temperature) is July (80.8°F).
The month with the lowest average high temperature is January (30.7°F).
The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (19.2°F).
Average pressure
Harlansburg, IN
- Average pressure in January:
30.11"Hg - Average pressure in February:
30.09"Hg - Average pressure in March:
30.08"Hg - Average pressure in April:
29.96"Hg - Average pressure in May:
29.97"Hg - Average pressure in June:
29.93"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:
30.02"Hg - Average pressure in November:
30.11"Hg - Average pressure in December:
30.1"Hg
The months with the highest atmospheric pressure are January and November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed
Harlansburg, IN
- Average wind speed in January:
10.4mph - Average wind speed in February:
10.1mph - Average wind speed in March:
9.7mph - Average wind speed in April:
10.1mph - Average wind speed in May:
8.4mph - Average wind speed in June:
7.5mph
- Average wind speed in July:
6.2mph - Average wind speed in August:
6.2mph - Average wind speed in September:
7mph - Average wind speed in October:
8.8mph - Average wind speed in November:
9.4mph - Average wind speed in December:
9.6mph
The windiest month (with the highest average wind speed) is January (10.4mph).
The calmest months (with the lowest average wind speed) are July and August (6.2mph).
Average humidity
Harlansburg, IN
The month with the highest relative humidity is January (84%).
The month with the lowest relative humidity is October (75%).
Average rainfall
Harlansburg, IN
- Average rainfall in January:
1.61" - Average rainfall in February:
1.42" - Average rainfall in March:
2.24" - Average rainfall in April:
3.07" - Average rainfall in May:
2.99" - Average rainfall in June:
2.72"
- Average rainfall in July:
2.56" - Average rainfall in August:
2.09" - Average rainfall in September:
1.57" - Average rainfall in October:
1.57" - Average rainfall in November:
1.57" - Average rainfall in December:
1.57"
The wettest month (with the highest rainfall) is April (3.07").
The driest month (with the least rainfall) is February (1.42").
Average rainfall days
Harlansburg, IN
- Average rainfall days in January:
6.8 days - Average rainfall days in February:
7.3 days - Average rainfall days in March:
12.2 days - Average rainfall days in April:
15.7 days - Average rainfall days in May:
18.3 days - Average rainfall days in June:
17.3 days
- Average rainfall days in July:
16.5 days - Average rainfall days in August:
15.2 days - Average rainfall days in September:
13.5 days - Average rainfall days in October:
12.2 days - Average rainfall days in November:
10.3 days - Average rainfall days in December:
8.5 days
The month with the highest number of rainy days is May (18.3 days).
The month with the least rainy days is January (6.8 days).
Average snowfall
Harlansburg, IN
The month with the highest snowfall is February (3.27").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days
Harlansburg, IN
- Average snowfall days in January:
13.4 days - Average snowfall days in February:
11.6 days - Average snowfall days in March:
5.9 days - Average snowfall days in April:
1.7 days - Average snowfall days in May:
0.1 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:
0.5 days - Average snowfall days in November:
4.5 days - Average snowfall days in December:
10.1 days
The month with the highest number of snowfall days is January (13.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Harlansburg, IN
- Average daylight in January:
9h and 36min - Average daylight in February:
10h and 42min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 18min - Average daylight in May:
14h and 30min - Average daylight in June:
15h and 6min
- Average daylight in July:
14h and 48min - Average daylight in August:
13h and 42min - Average daylight in September:
12h and 30min - Average daylight in October:
11h and 6min - Average daylight in November:
9h and 54min - Average daylight in December:
9h and 18min
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 18min - Average sunshine in February:
4h and 24min - Average sunshine in March:
5h and 42min - Average sunshine in April:
6h and 48min - Average sunshine in May:
8h and 24min - Average sunshine in June:
9h and 54min
- Average sunshine in July:
10h and 0min - Average sunshine in August:
9h and 24min - Average sunshine in September:
8h and 0min - Average sunshine in October:
6h and 12min - Average sunshine in November:
5h and 0min - Average sunshine in December:
3h and 48min
The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 18min).
Average sunshine days
Harlansburg, IN
- Average sunshine days in January:
11.9 days - Average sunshine days in February:
10.5 days - Average sunshine days in March:
13.4 days - Average sunshine days in April:
11.7 days - Average sunshine days in May:
10.5 days - Average sunshine days in June:
10.8 days
- Average sunshine days in July:
11.7 days - Average sunshine days in August:
11.9 days - Average sunshine days in September:
14.5 days - Average sunshine days in October:
16 days - Average sunshine days in November:
15.9 days - Average sunshine days in December:
13.7 days
The month with the most sunshine days is October (16 days).
The months with the least sunshine days are February and May (10.5 days).
Average UV index
Harlansburg, IN
The month with the highest UV index is June (UV index 6).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).
Average cloud cover
Harlansburg, IN
The month with the most cloud cover is January (Cloud cover 65).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility
Harlansburg, IN
The months with the highest visibility are February, March, April, May, June, July, September, October, November and December (6mi).
The months with the lowest visibility are January and August (5mi).





