Climate and monthly weather forecastSomerville, IN
Climate and monthly weather forecast
Weather in January
January, like December, in Somerville, Indiana, is an icy winter month, with an average temperature varying between 37.9°F (3.3°C) and 25.2°F (-3.8°C). Somerville records the coldest temperatures in January, averaging a high of 37.9°F (3.3°C) and a low of 25.2°F (-3.8°C). Weather in January »Weather in February
The last month of the winter, February, is a chilly month in Somerville, Indiana, with an average temperature varying between 29.1°F (-1.6°C) and 43.3°F (6.3°C). Observing a slight rise in February, the average high-temperature shifts from January's cold 37.9°F (3.3°C) to a chilly 43.3°F (6.3°C). Weather in February »Weather in March
March, the first month of the spring in Somerville, is a cool month, with an average temperature fluctuating between 38.3°F (3.5°C) and 53.8°F (12.1°C). Somerville's transition into March is marked by a temperature shift, moving from a frosty 43.3°F (6.3°C) in February to a cool 53.8°F (12.1°C). Weather in March »Weather in April
April is a refreshing spring month in Somerville, Indiana, with an average temperature varying between 65.1°F (18.4°C) and 48.4°F (9.1°C). April's arrival is marked by an increase in the average high-temperature, moving from a cool 53.8°F (12.1°C) in March to a refreshing 65.1°F (18.4°C). Weather in April »Weather in May
May, the last month of the spring in Somerville, is a moderately hot month, with an average temperature ranging between max 74.1°F (23.4°C) and min 57.7°F (14.3°C). Somerville's transition into May sees a rise in the average high-temperature, advancing from a comfortable 65.1°F (18.4°C) in April to a moderately hot 74.1°F (23.4°C). Weather in May »Weather in June
June, the first month of the summer in Somerville, is still a warm month, with an average temperature varying between 82.4°F (28°C) and 65.5°F (18.6°C). Somerville's weather in June shows a minor rise in the average high-temperature, moving slightly up from May's moderately hot 74.1°F (23.4°C) to a still warm 82.4°F (28°C). Weather in June »Weather in July
July, the same as June, is another warm summer month in Somerville, Indiana, with an average temperature ranging between max 84.7°F (29.3°C) and min 67.6°F (19.8°C). The warmest month is July, with an average high-temperature of 84.7°F (29.3°C) and an average low-temperature of 67.6°F (19.8°C). For most parts of July, the heat index is evaluated at a fiery hot 96.8°F (36°C). Weather in July »Weather in August
August, the last month of the summer in Somerville, is another warm month, with temperature in the range of an average low of 65.7°F (18.7°C) and an average high of 83.8°F (28.8°C). Somerville registers an average high-temperature of a still moderately hot 83.8°F (28.8°C) at the commencement of August, closely related to the preceding month. Weather in August »Weather in September
September, the first month of the autumn in Somerville, is also a moderately hot month, with temperature in the range of an average low of 60.4°F (15.8°C) and an average high of 78.8°F (26°C). As August turns into September, the average high-temperatures rest at a still warm 78.8°F (26°C), showing a minor variation from the prior month. Weather in September »Weather in October
October, the same as September, is another refreshing autumn month in Somerville, Indiana, with an average temperature fluctuating between 49.6°F (9.8°C) and 66.7°F (19.3°C). In Somerville, the beginning of October is marked by a lowered average high-temperature, shifting from September's moderately hot 78.8°F (26°C) to a comfortable 66.7°F (19.3°C). Weather in October »Weather in November
The last month of the autumn, November, is also a fresh month in Somerville, Indiana, with an average temperature fluctuating between 38.5°F (3.6°C) and 53.1°F (11.7°C). The onset of November is marked by a decrease in temperature, transitioning from a refreshing 66.7°F (19.3°C) in October to a fresh 53.1°F (11.7°C). Weather in November »Weather in December
December, the first month of the winter in Somerville, is also a frosty month, with an average temperature varying between 32°F (0°C) and 43.3°F (6.3°C). The shift from November to December corresponds with a decrease in the average high-temperature, down to a chilly 43.3°F (6.3°C) from a cool 53.1°F (11.7°C). Weather in December »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Somerville, IN
The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is January (37.9°F).
The month with the highest average low temperature is July (67.6°F).
The coldest month (with the lowest average low temperature) is January (25.2°F).
Average pressure
Somerville, IN
- Average pressure in January:
30.16"Hg - Average pressure in February:
30.12"Hg - Average pressure in March:
30.09"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:
30.14"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed
Somerville, IN
- Average wind speed in January:
9.5mph - Average wind speed in February:
9.6mph - Average wind speed in March:
9.4mph - Average wind speed in April:
9.4mph - Average wind speed in May:
7.9mph - Average wind speed in June:
6.8mph
- Average wind speed in July:
5.7mph - Average wind speed in August:
5.8mph - Average wind speed in September:
6.5mph - Average wind speed in October:
8.2mph - Average wind speed in November:
8.6mph - Average wind speed in December:
8.9mph
The windiest month (with the highest average wind speed) is February (9.6mph).
The calmest month (with the lowest average wind speed) is July (5.7mph).
Average humidity
Somerville, IN
The month with the highest relative humidity is May (81%).
The month with the lowest relative humidity is October (71%).
Average rainfall
Somerville, IN
- Average rainfall in January:
1.69" - Average rainfall in February:
1.61" - Average rainfall in March:
1.93" - Average rainfall in April:
2.76" - Average rainfall in May:
2.52" - Average rainfall in June:
2.4"
- Average rainfall in July:
2.09" - Average rainfall in August:
1.89" - Average rainfall in September:
1.22" - Average rainfall in October:
1.65" - Average rainfall in November:
1.73" - Average rainfall in December:
1.77"
The wettest month (with the highest rainfall) is April (2.76").
The driest month (with the least rainfall) is September (1.22").
Average rainfall days
Somerville, IN
- Average rainfall days in January:
9.3 days - Average rainfall days in February:
9.7 days - Average rainfall days in March:
12.6 days - Average rainfall days in April:
15.7 days - Average rainfall days in May:
17.8 days - Average rainfall days in June:
14.2 days
- Average rainfall days in July:
16.5 days - Average rainfall days in August:
12.8 days - Average rainfall days in September:
11.5 days - Average rainfall days in October:
10.1 days - Average rainfall days in November:
8.6 days - Average rainfall days in December:
9.8 days
The month with the highest number of rainy days is May (17.8 days).
The month with the least rainy days is November (8.6 days).
Average snowfall
Somerville, IN
The month with the highest snowfall is January (1.57").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days
Somerville, IN
- Average snowfall days in January:
6.5 days - Average snowfall days in February:
5.4 days - Average snowfall days in March:
2.8 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:
0.1 days - Average snowfall days in November:
1.8 days - Average snowfall days in December:
5.5 days
The month with the highest number of snowfall days is January (6.5 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight / Average sunshine
Somerville, 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 36min
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 36min).
- Average sunshine in January:
4h and 18min - Average sunshine in February:
4h and 30min - Average sunshine in March:
6h and 18min - Average sunshine in April:
8h and 30min - Average sunshine in May:
9h and 12min - Average sunshine in June:
10h and 30min
- Average sunshine in July:
10h and 30min - Average sunshine in August:
10h and 30min - Average sunshine in September:
9h and 0min - Average sunshine in October:
6h and 54min - Average sunshine in November:
5h and 36min - Average sunshine in December:
4h and 30min
The months with the most sunshine are June, July and August (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 18min).
Average sunshine days
Somerville, IN
- Average sunshine days in January:
16.3 days - Average sunshine days in February:
13.9 days - Average sunshine days in March:
14 days - Average sunshine days in April:
12.3 days - Average sunshine days in May:
10.1 days - Average sunshine days in June:
12 days
- Average sunshine days in July:
10.8 days - Average sunshine days in August:
15.2 days - Average sunshine days in September:
16.1 days - Average sunshine days in October:
19.1 days - Average sunshine days in November:
18.8 days - Average sunshine days in December:
15.7 days
The month with the most sunshine days is October (19.1 days).
The month with the least sunshine days is May (10.1 days).
Average UV index
Somerville, IN
The months with the highest UV index are May, 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
Somerville, IN
The months with the most cloud cover are January and February (Cloud cover 53).
The months with the least cloud cover are June and August (Cloud cover 28).
Average visibility
Somerville, IN
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).





