Climate and monthly weather forecastRob Roy, IN
Climate and monthly weather forecast
Weather in January
January, like December, in Rob Roy, Indiana, is an icy winter month, with temperature in the range of an average low of 20.1°F (-6.6°C) and an average high of 32°F (0°C). Temperature records mark January as the coldest month, with highs averaging 32°F (0°C) and lows at 20.1°F (-6.6°C). Weather in January »Weather in February
The last month of the winter, February, is another cold month in Rob Roy, Indiana, with an average temperature fluctuating between 36.3°F (2.4°C) and 23.7°F (-4.6°C). The arrival of February coincides with an average high-temperature of a still wintry 36.3°F (2.4°C), indicating a minimal shift from January's 32°F (0°C). Weather in February »Weather in March
March, the first month of the spring in Rob Roy, is a chilly month, with temperature in the range of an average high of 49.1°F (9.5°C) and an average low of 34.5°F (1.4°C). Rob Roy sees a rise in temperature during March, with average high-temperatures transitioning from a cold 36.3°F (2.4°C) in February to a chilly 49.1°F (9.5°C). Weather in March »Weather in April
April in Rob Roy, Indiana, is a refreshing spring month, with an average temperature ranging between max 60.8°F (16°C) and min 44.4°F (6.9°C). Rob Roy in April shows a temperature shift, moving from an average high of a chilly 49.1°F (9.5°C) in March to a comfortable 60.8°F (16°C). Weather in April »Weather in May
May, the last month of the spring in Rob Roy, is a pleasant month, with an average temperature ranging between max 71.8°F (22.1°C) and min 54.9°F (12.7°C). The start of May brings a shift in the average high-temperature, increasing from April's refreshing 60.8°F (16°C) to an agreeable 71.8°F (22.1°C). Weather in May »Weather in June
June, the first month of the summer in Rob Roy, is a warm month, with an average temperature fluctuating between 79.3°F (26.3°C) and 63°F (17.2°C). With the onset of June, Rob Roy observes a minor temperature ascent, with the average high-temperature adjusting from May's agreeable 71.8°F (22.1°C) to a moderately hot 79.3°F (26.3°C). Weather in June »Weather in July
July, the same as June, is a moderately hot summer month in Rob Roy, Indiana, with temperature in the range of an average low of 64.4°F (18°C) and an average high of 81.5°F (27.5°C). Rob Roy notes the warmest temperatures in July, with a high average of 81.5°F (27.5°C) and a low of 64.4°F (18°C). July's heat index is estimated at a tropical 87.8°F (31°C). Weather in July »Weather in August
The last month of the summer, August, is also a moderately hot month in Rob Roy, Indiana, with an average temperature fluctuating between 62.8°F (17.1°C) and 80.2°F (26.8°C). Rob Roy's weather in August displays an average high-temperature of a still warm 80.2°F (26.8°C), showing minor disparity from July's 81.5°F (27.5°C). Weather in August »Weather in September
September, the first month of the autumn in Rob Roy, is still a warm month, with an average temperature varying between 75.7°F (24.3°C) and 57.6°F (14.2°C). With the transition into September, Rob Roy notes an average high-temperature of a still moderately hot 75.7°F (24.3°C), closely resembling August. Weather in September »Weather in October
October, the same as September, is another comfortable autumn month in Rob Roy, Indiana, with an average temperature fluctuating between 63°F (17.2°C) and 47.1°F (8.4°C). In Rob Roy, the average high-temperature in October decreases from a moderately hot 75.7°F (24.3°C) in September to an enjoyable 63°F (17.2°C). Weather in October »Weather in November
November, the last month of the autumn in Rob Roy, is another chilly month, with an average temperature varying between 48.7°F (9.3°C) and 35.2°F (1.8°C). November's arrival corresponds with a decrease in average high-temperatures, from October's enjoyable 63°F (17.2°C) to a chilly 48.7°F (9.3°C). Weather in November »Weather in December
December, the first month of the winter in Rob Roy, is also an icy month, with an average temperature varying between 27.3°F (-2.6°C) and 37.6°F (3.1°C). The onset of December comes with a shift in the average high-temperature, falling from a frosty 48.7°F (9.3°C) in November to a wintry 37.6°F (3.1°C). Weather in December »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Rob Roy, IN
The warmest month (with the highest average high temperature) is July (81.5°F).
The month with the lowest average high temperature is January (32°F).
The month with the highest average low temperature is July (64.4°F).
The coldest month (with the lowest average low temperature) is January (20.1°F).
Average pressure
Rob Roy, IN
- Average pressure in January:
30.13"Hg - Average pressure in February:
30.1"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:
30.02"Hg - Average pressure in November:
30.12"Hg - Average pressure in December:
30.11"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed
Rob Roy, IN
- Average wind speed in January:
10.3mph - Average wind speed in February:
10.2mph - Average wind speed in March:
9.9mph - Average wind speed in April:
10.1mph - Average wind speed in May:
8.5mph - 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:
8.9mph - Average wind speed in November:
9.6mph - Average wind speed in December:
9.6mph
The windiest month (with the highest average wind speed) is January (10.3mph).
The calmest months (with the lowest average wind speed) are July and August (6.2mph).
Average humidity
Rob Roy, IN
The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (73%).
Average rainfall
Rob Roy, IN
- Average rainfall in January:
1.77" - Average rainfall in February:
1.61" - Average rainfall in March:
2.52" - Average rainfall in April:
3.39" - Average rainfall in May:
3.31" - Average rainfall in June:
3.03"
- Average rainfall in July:
2.72" - Average rainfall in August:
2.52" - Average rainfall in September:
1.5" - Average rainfall in October:
2.17" - Average rainfall in November:
1.73" - Average rainfall in December:
1.65"
The wettest month (with the highest rainfall) is April (3.39").
The driest month (with the least rainfall) is September (1.5").
Average rainfall days
Rob Roy, IN
- Average rainfall days in January:
8.4 days - Average rainfall days in February:
7.3 days - Average rainfall days in March:
12.5 days - Average rainfall days in April:
16.1 days - Average rainfall days in May:
19.4 days - Average rainfall days in June:
17.4 days
- Average rainfall days in July:
18.7 days - Average rainfall days in August:
16.2 days - Average rainfall days in September:
12.6 days - Average rainfall days in October:
13.1 days - Average rainfall days in November:
9.8 days - Average rainfall days in December:
10 days
The month with the highest number of rainy days is May (19.4 days).
The month with the least rainy days is February (7.3 days).
Average snowfall
Rob Roy, IN
The month with the highest snowfall is February (3.27").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days
Rob Roy, IN
- Average snowfall days in January:
11 days - Average snowfall days in February:
9.6 days - Average snowfall days in March:
4.6 days - Average snowfall days in April:
1.2 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:
2.5 days - Average snowfall days in December:
8.5 days
The month with the highest number of snowfall days is January (11 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight / Average sunshine
Rob Roy, IN
- Average daylight in January:
9h and 42min - 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 24min - Average daylight in June:
15h and 0min
- Average daylight in July:
14h and 42min - Average daylight in August:
13h and 42min - Average daylight in September:
12h and 24min - Average daylight in October:
11h and 6min - Average daylight in November:
10h and 0min - Average daylight in December:
9h and 24min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in January:
4h and 6min - Average sunshine in February:
5h and 12min - Average sunshine in March:
6h and 18min - Average sunshine in April:
7h and 0min - Average sunshine in May:
8h and 42min - Average sunshine in June:
10h and 6min
- Average sunshine in July:
9h and 54min - Average sunshine in August:
9h and 18min - Average sunshine in September:
8h and 24min - Average sunshine in October:
6h and 42min - Average sunshine in November:
5h and 18min - Average sunshine in December:
4h and 24min
The month with the most sunshine is June (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).
Average sunshine days
Rob Roy, IN
- Average sunshine days in January:
13.8 days - Average sunshine days in February:
12.3 days - Average sunshine days in March:
14.4 days - Average sunshine days in April:
11.3 days - Average sunshine days in May:
9.2 days - Average sunshine days in June:
10.1 days
- Average sunshine days in July:
9 days - Average sunshine days in August:
11.7 days - Average sunshine days in September:
14.6 days - Average sunshine days in October:
15.9 days - Average sunshine days in November:
17.8 days - Average sunshine days in December:
14.5 days
The month with the most sunshine days is November (17.8 days).
The month with the least sunshine days is July (9 days).
Average UV index
Rob Roy, IN
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
Rob Roy, IN
The month with the most cloud cover is January (Cloud cover 59).
The months with the least cloud cover are June and August (Cloud cover 32).
Average visibility
Rob Roy, IN
The months with the highest visibility are January, February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are July and August (5mi).





