Climate and monthly weather forecastCastleton, IN
Climate and monthly weather forecast
Weather in January
January, like December, in Castleton, Indiana, is an icy winter month, with an average temperature fluctuating between 20.7°F (-6.3°C) and 32.5°F (0.3°C). January is the coldest month, with an average high-temperature of 32.5°F (0.3°C) and an average low-temperature of 20.7°F (-6.3°C). Weather in January »Weather in February
The last month of the winter, February, is another cold month in Castleton, Indiana, with an average temperature varying between 37.2°F (2.9°C) and 24.4°F (-4.2°C). In February, Castleton notes an average high-temperature of a still wintry 37.2°F (2.9°C), hardly different from the preceding month. Weather in February »Weather in March
March, the first month of the spring in Castleton, is a chilly month, with an average temperature varying between 34.5°F (1.4°C) and 49.3°F (9.6°C). As February gives way to March, the average high-temperature displays an increase, moving from a wintry 37.2°F (2.9°C) to a chilly 49.3°F (9.6°C). Weather in March »Weather in April
April in Castleton, Indiana, is an enjoyable spring month, with an average temperature ranging between min 44.8°F (7.1°C) and max 61°F (16.1°C). The transition to April introduces an increase in the average high-temperature, shifting from a frosty 49.3°F (9.6°C) in March to a refreshing 61°F (16.1°C). Weather in April »Weather in May
May, the last month of the spring in Castleton, is a pleasant month, with an average temperature fluctuating between 71.8°F (22.1°C) and 55.4°F (13°C). May brings an increase in the average high-temperature, progressing from a comfortable 61°F (16.1°C) in April to an agreeable 71.8°F (22.1°C). Weather in May »Weather in June
June, the first month of the summer in Castleton, is a warm month, with an average temperature fluctuating between 63.5°F (17.5°C) and 79.7°F (26.5°C). The beginning of June signals a minor rise in the average high-temperature, moving from an agreeable 71.8°F (22.1°C) in May to a warm 79.7°F (26.5°C). Weather in June »Weather in July
July, the same as June, is another warm summer month in Castleton, Indiana, with an average temperature ranging between max 81.5°F (27.5°C) and min 65.5°F (18.6°C). July is the month that records the highest temperatures, with averages ranging from a high of 81.5°F (27.5°C) to a low of 65.5°F (18.6°C). In July, the heat index is calculated to be a hot 87.8°F (31°C). Weather in July »Weather in August
The last month of the summer, August, is another warm month in Castleton, Indiana, with an average temperature fluctuating between 80.2°F (26.8°C) and 63.1°F (17.3°C). Castleton marks the onset of August with an average high-temperature of a still warm 80.2°F (26.8°C), subtly divergent from July's 81.5°F (27.5°C). Weather in August »Weather in September
September, the first month of the autumn in Castleton, is also a moderately hot month, with temperature in the range of an average high of 75.4°F (24.1°C) and an average low of 57.6°F (14.2°C). September's beginning signals an average high-temperature of a still moderately hot 75.4°F (24.1°C), barely different from August's 80.2°F (26.8°C). Weather in September »Weather in October
October, like September, in Castleton, Indiana, is another enjoyable autumn month, with an average temperature varying between 47.1°F (8.4°C) and 62.8°F (17.1°C). October comes with a drop in the average high-temperature, falling from September's warm 75.4°F (24.1°C) to a refreshing 62.8°F (17.1°C). Weather in October »Weather in November
The last month of the autumn, November, is also a frosty month in Castleton, Indiana, with an average temperature varying between 48.9°F (9.4°C) and 35.8°F (2.1°C). November ushers in a slight temperature change, with average high-temperatures reducing from October's enjoyable 62.8°F (17.1°C) to a frosty 48.9°F (9.4°C). Weather in November »Weather in December
December, the first month of the winter in Castleton, is also an icy month, with an average temperature fluctuating between 27.7°F (-2.4°C) and 38.1°F (3.4°C). Welcoming December, Castleton observes a shift in the average high-temperature, falling from November's chilly 48.9°F (9.4°C) to a cold 38.1°F (3.4°C). Weather in December »Updated: Jul 29, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
January, with an average high of 32.5°F (0.3°C) and a low of 20.7°F (-6.3°C), signifies the coldest month of the year.
January and December, with an average relative humidity of 83%, are most humid months.
Throughout the year, there are 141 rainfall days, and 20.98" (533mm) of precipitation is accumulated.
Months with snowfall are January through April, October through December.
Throughout the year, there are 29.1 snowfall days, and 7.99" (203mm) of snow is accumulated.
January has the least sunshine of the year, with an average of 3.9h of sunshine.
The month with the least rainfall is February, when the rain falls for 6.2 days and typically collects 1.18" (30mm) of precipitation.
February is the month with the most snowfall. Snow falls for 7.1 days and accumulates 2.01" (51mm) 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.
The month with the most rainfall is May, when the rain falls for 17.4 days and typically aggregates up to 2.64" (67mm) of precipitation.
May through September are months without snowfall in Castleton.
June has the longest days of the year, with an average of 15h and 0min of daylight.
June and July, with an average of 10.1h of sunshine, are months with the most sunshine.
The months with the highest UV index in Castleton are June through August, with an average maximum UV index of 6.
July is the month that records the highest temperatures in Castleton, with averages ranging from a high of 81.5°F (27.5°C) to a low of 65.5°F (18.6°C).
October is the least humid month, with an average relative humidity of 74%.
December has the shortest days of the year in Castleton, with an average of 9h and 24min of daylight.
With an average maximum UV index of 1, December is the month with the lowest UV index.
Average temperature
Castleton, 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 (32.5°F).
The month with the highest average low temperature is July (65.5°F).
The coldest month (with the lowest average low temperature) is January (20.7°F).
Average pressure
Castleton, 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:
29.97"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:
30.03"Hg - Average pressure in November:
30.13"Hg - Average pressure in December:
30.12"Hg
The months with the highest atmospheric pressure are January and November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed
Castleton, IN
- Average wind speed in January:
10mph - Average wind speed in February:
9.9mph - Average wind speed in March:
9.6mph - Average wind speed in April:
9.8mph - Average wind speed in May:
8.1mph - Average wind speed in June:
7.2mph
- Average wind speed in July:
6mph - Average wind speed in August:
5.9mph - Average wind speed in September:
6.6mph - Average wind speed in October:
8.5mph - Average wind speed in November:
9.1mph - Average wind speed in December:
9.3mph
The windiest month (with the highest average wind speed) is January (10mph).
The calmest month (with the lowest average wind speed) is August (5.9mph).
Average humidity
Castleton, IN
The months with the highest relative humidity are January and December (83%).
The month with the lowest relative humidity is October (74%).
Average rainfall
Castleton, IN
- Average rainfall in January:
1.3" - Average rainfall in February:
1.18" - Average rainfall in March:
1.73" - Average rainfall in April:
2.36" - Average rainfall in May:
2.64" - Average rainfall in June:
2.44"
- Average rainfall in July:
2.01" - Average rainfall in August:
1.65" - Average rainfall in September:
1.54" - Average rainfall in October:
1.38" - Average rainfall in November:
1.26" - Average rainfall in December:
1.5"
The wettest month (with the highest rainfall) is May (2.64").
The driest month (with the least rainfall) is February (1.18").
Average rainfall days
Castleton, IN
- Average rainfall days in January:
6 days - Average rainfall days in February:
6.2 days - Average rainfall days in March:
12.4 days - Average rainfall days in April:
13.9 days - Average rainfall days in May:
17.4 days - Average rainfall days in June:
15.2 days
- Average rainfall days in July:
16.1 days - Average rainfall days in August:
13.8 days - Average rainfall days in September:
12.6 days - Average rainfall days in October:
10.7 days - Average rainfall days in November:
8.7 days - Average rainfall days in December:
8 days
The month with the highest number of rainy days is May (17.4 days).
The month with the least rainy days is January (6 days).
Average snowfall
Castleton, IN
The month with the highest snowfall is February (2.01").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days
Castleton, IN
- Average snowfall days in January:
8.5 days - Average snowfall days in February:
7.1 days - Average snowfall days in March:
3.8 days - Average snowfall days in April:
0.9 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:
0.2 days - Average snowfall days in November:
2.1 days - Average snowfall days in December:
6.4 days
The month with the highest number of snowfall days is January (8.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Castleton, 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:
3h and 54min - Average sunshine in February:
5h and 0min - Average sunshine in March:
6h and 0min - 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 6min - Average sunshine in August:
9h and 30min - Average sunshine in September:
8h and 12min - Average sunshine in October:
6h and 24min - Average sunshine in November:
5h and 12min - Average sunshine in December:
4h and 6min
The months with the most sunshine are June and July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days
Castleton, IN
- Average sunshine days in January:
17.1 days - Average sunshine days in February:
15.3 days - Average sunshine days in March:
14.8 days - Average sunshine days in April:
13.8 days - Average sunshine days in May:
11.3 days - Average sunshine days in June:
12.2 days
- Average sunshine days in July:
12.1 days - Average sunshine days in August:
14.3 days - Average sunshine days in September:
14.8 days - Average sunshine days in October:
18.7 days - Average sunshine days in November:
18.7 days - Average sunshine days in December:
17.5 days
The months with the most sunshine days are October and November (18.7 days).
The month with the least sunshine days is May (11.3 days).
Average UV index
Castleton, 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
Castleton, IN
The month with the most cloud cover is January (Cloud cover 61).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility
Castleton, 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).
