Climate and monthly weather forecastClayton, IN
Climate and monthly weather forecast
Weather in January
January, like December, in Clayton, Indiana, is another cold winter month, with temperature in the range of an average high of 32.7°F (0.4°C) and an average low of 20.7°F (-6.3°C). Clayton notes the coldest temperatures in January, with a high average of 32.7°F (0.4°C) and a low of 20.7°F (-6.3°C). Weather in January »Weather in February
February, the last month of the winter in Clayton, is also an icy month, with an average temperature ranging between max 37.9°F (3.3°C) and min 24.4°F (-4.2°C). Clayton in February witnesses an average high-temperature of a still wintry 37.9°F (3.3°C), indicating a slight variation from January's 32.7°F (0.4°C). Weather in February »Weather in March
The first month of the spring, March, is a chilly month in Clayton, Indiana, with temperature in the range of an average high of 49.6°F (9.8°C) and an average low of 34.7°F (1.5°C). The shift into March is accompanied by a temperature increase, with the average high-temperature rising from a cold 37.9°F (3.3°C) in February to a frosty 49.6°F (9.8°C). Weather in March »Weather in April
April is an enjoyable spring month in Clayton, Indiana, with an average temperature varying between 60.8°F (16°C) and 44.8°F (7.1°C). Clayton's weather in April shows a rise in the average high-temperature, moving up from March's chilly 49.6°F (9.8°C) to a comfortable 60.8°F (16°C). Weather in April »Weather in May
The last month of the spring, May, is a pleasant month in Clayton, Indiana, with an average temperature varying between 55°F (12.8°C) and 71.4°F (21.9°C). May's arrival signals a temperature shift, moving from an enjoyable 60.8°F (16°C) in April to a pleasant 71.4°F (21.9°C). Weather in May »Weather in June
June, the first month of the summer in Clayton, is a warm month, with an average temperature fluctuating between 63.1°F (17.3°C) and 79.3°F (26.3°C). In Clayton, the average high-temperature in June slightly rises, from a pleasant 71.4°F (21.9°C) in May, to a warm 79.3°F (26.3°C). Weather in June »Weather in July
July, like June, in Clayton, Indiana, is a moderately hot summer month, with an average temperature varying between 64.9°F (18.3°C) and 81.3°F (27.4°C). The average temperatures reach their apex in July, averaging 81.3°F (27.4°C) at the high end and 64.9°F (18.3°C) at the low end. In July, the average heat index is estimated at a tropical 87.8°F (31°C). Weather in July »Weather in August
August, the last month of the summer in Clayton, is also a moderately hot month, with an average temperature varying between 63.1°F (17.3°C) and 80.2°F (26.8°C). The average high-temperature in August, at a still warm 80.2°F (26.8°C), reveals a modest deviation from July's 81.3°F (27.4°C). Weather in August »Weather in September
The first month of the autumn, September, is still a warm month in Clayton, Indiana, with an average temperature varying between 57.7°F (14.3°C) and 75.6°F (24.2°C). As August transitions into September, the average high-temperature rests at a still moderately hot 75.6°F (24.2°C), maintaining a close resemblance to the previous month. Weather in September »Weather in October
October, the same as September, is another enjoyable autumn month in Clayton, Indiana, with an average temperature ranging between max 63°F (17.2°C) and min 46.6°F (8.1°C). The move into October indicates a reduction in the average high-temperature, down from September's warm 75.6°F (24.2°C) to a comfortable 63°F (17.2°C). Weather in October »Weather in November
November, the last month of the autumn in Clayton, is another chilly month, with an average temperature varying between 35.4°F (1.9°C) and 49.1°F (9.5°C). November brings a decrease in the average high-temperature, shifting from an enjoyable 63°F (17.2°C) in October to a chilly 49.1°F (9.5°C). Weather in November »Weather in December
December, the first month of the winter in Clayton, is also an icy month, with an average temperature varying between 27.7°F (-2.4°C) and 38.3°F (3.5°C). In December, the average high-temperature decreases from a frosty 49.1°F (9.5°C) in November to a wintry 38.3°F (3.5°C). Weather in December »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Clayton, IN
The warmest month (with the highest average high temperature) is July (81.3°F).
The month with the lowest average high temperature is January (32.7°F).
The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (20.7°F).
Average pressure
Clayton, IN
- Average pressure in January:
30.14"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:
29.97"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:
30.12"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed
Clayton, IN
- Average wind speed in January:
10.1mph - Average wind speed in February:
10.1mph - Average wind speed in March:
9.7mph - Average wind speed in April:
9.8mph - Average wind speed in May:
8.1mph - Average wind speed in June:
7.1mph
- Average wind speed in July:
6mph - Average wind speed in August:
6mph - Average wind speed in September:
6.7mph - Average wind speed in October:
8.5mph - Average wind speed in November:
9.1mph - Average wind speed in December:
9.3mph
The windiest months (with the highest average wind speed) are January and February (10.1mph).
The calmest months (with the lowest average wind speed) are July and August (6mph).
Average humidity
Clayton, IN
The month with the highest relative humidity is July (83%).
The month with the lowest relative humidity is October (74%).
Average rainfall
Clayton, IN
- Average rainfall in January:
1.26" - Average rainfall in February:
0.91" - Average rainfall in March:
1.5" - Average rainfall in April:
2.24" - Average rainfall in May:
2.36" - Average rainfall in June:
2.44"
- Average rainfall in July:
1.73" - Average rainfall in August:
1.38" - Average rainfall in September:
1.14" - Average rainfall in October:
1.26" - Average rainfall in November:
1.1" - Average rainfall in December:
1.14"
The wettest month (with the highest rainfall) is June (2.44").
The driest month (with the least rainfall) is February (0.91").
Average rainfall days
Clayton, IN
- Average rainfall days in January:
6.7 days - Average rainfall days in February:
6.5 days - Average rainfall days in March:
11.3 days - Average rainfall days in April:
15.3 days - Average rainfall days in May:
17.3 days - Average rainfall days in June:
15.9 days
- Average rainfall days in July:
15.8 days - Average rainfall days in August:
12.8 days - Average rainfall days in September:
11.1 days - Average rainfall days in October:
10.9 days - Average rainfall days in November:
9.5 days - Average rainfall days in December:
7.5 days
The month with the highest number of rainy days is May (17.3 days).
The month with the least rainy days is February (6.5 days).
Average snowfall
Clayton, IN
The month with the highest snowfall is December (1.65").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days
Clayton, IN
- Average snowfall days in January:
7.2 days - Average snowfall days in February:
6.8 days - Average snowfall days in March:
3.2 days - Average snowfall days in April:
0.5 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 days - Average snowfall days in December:
5.9 days
The month with the highest number of snowfall days is January (7.2 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight / Average sunshine
Clayton, 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:
14h and 54min
- 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: 14h and 54min).
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 6min - Average sunshine in March:
6h and 12min - Average sunshine in April:
6h and 54min - Average sunshine in May:
8h and 30min - Average sunshine in June:
10h and 6min
- Average sunshine in July:
10h and 0min - Average sunshine in August:
9h and 24min - Average sunshine in September:
8h and 18min - Average sunshine in October:
6h and 42min - Average sunshine in November:
5h and 18min - Average sunshine in December:
4h and 12min
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
Clayton, IN
- Average sunshine days in January:
18 days - Average sunshine days in February:
16.2 days - Average sunshine days in March:
15.8 days - Average sunshine days in April:
12.9 days - Average sunshine days in May:
10.8 days - Average sunshine days in June:
11.6 days
- Average sunshine days in July:
11.4 days - Average sunshine days in August:
14.8 days - Average sunshine days in September:
16.6 days - Average sunshine days in October:
18.8 days - Average sunshine days in November:
19.1 days - Average sunshine days in December:
17.5 days
The month with the most sunshine days is November (19.1 days).
The month with the least sunshine days is May (10.8 days).
Average UV index
Clayton, IN
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, October, November and December (UV index 2).
Average cloud cover
Clayton, IN
The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility
Clayton, 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).





