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Contents
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average snowfall
- Average snowfall days
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
Weather in January
January, the same as December, in Castalia, North Carolina, is another chilly winter month, with an average temperature fluctuating between 47.7°F (8.7°C) and 32.5°F (0.3°C). January is the coldest month, exhibiting average temperatures of 47.7°F (8.7°C) at the peak and 32.5°F (0.3°C) at the base. Weather in January »
Weather in February
The last month of the winter, February, is a fresh month in Castalia, North Carolina, with an average temperature fluctuating between 36°F (2.2°C) and 52.5°F (11.4°C). In Castalia, February's average high-temperature stands at a cool 52.5°F (11.4°C), closely related to the preceding month. Weather in February »
Weather in March
The first month of the spring, March, is a refreshing month in Castalia, North Carolina, with an average temperature ranging between max 58.8°F (14.9°C) and min 42.1°F (5.6°C). As Castalia transitions into March, the average high-temperature is observed to slightly rise from a fresh 52.5°F (11.4°C) in February to a mild 58.8°F (14.9°C). Weather in March »
Weather in April
April is a pleasant spring month in Castalia, North Carolina, with temperature in the range of an average low of 52°F (11.1°C) and an average high of 70.2°F (21.2°C). April brings a rise in Castalia's average high-temperature, moving from a mild 58.8°F (14.9°C) in March to a pleasant 70.2°F (21.2°C). Weather in April »
Weather in May
May, the last month of the spring in Castalia, is a warm month, with temperature in the range of an average high of 77.9°F (25.5°C) and an average low of 60.4°F (15.8°C). May's onset is marked by a subtle temperature increase, moving from a pleasant 70.2°F (21.2°C) in April to a warm 77.9°F (25.5°C). Weather in May »
Weather in June
June, the first month of the summer in Castalia, is also a moderately hot month, with an average temperature ranging between max 84.7°F (29.3°C) and min 67.3°F (19.6°C). In June, the average high-temperature marginally rises from a moderately hot 77.9°F (25.5°C) in May to a still warm 84.7°F (29.3°C). Weather in June »
Weather in July
July is a hot summer month in Castalia, North Carolina, with temperature in the range of an average low of 70.7°F (21.5°C) and an average high of 88.3°F (31.3°C). With average temperatures fluctuating between a high of 88.3°F (31.3°C) and a low of 70.7°F (21.5°C), July stands out as the warmest month. In July, the average heat index is evaluated at an extremely hot 104°F (40°C). Weather in July »
Weather in August
August, the last month of the summer in Castalia, is another hot month, with an average temperature fluctuating between 86.5°F (30.3°C) and 69.1°F (20.6°C). The dawn of August sees an average high-temperature of a still tropical 86.5°F (30.3°C), subtly contrasting with July's 88.3°F (31.3°C). Weather in August »
Weather in September
The first month of the autumn, September, is also a moderately hot month in Castalia, North Carolina, with an average temperature fluctuating between 64°F (17.8°C) and 81.3°F (27.4°C). The beginning of September records an average high-temperature of a warm 81.3°F (27.4°C), almost echoing the conditions of the previous month. Weather in September »
Weather in October
October, the same as September, in Castalia, North Carolina, is an agreeable autumn month, with temperature in the range of an average low of 54°F (12.2°C) and an average high of 70.7°F (21.5°C). The onset of October introduces a moderate change in Castalia's weather, with average high-temperatures falling from September's warm 81.3°F (27.4°C) to an agreeable 70.7°F (21.5°C). Weather in October »
Weather in November
November, the last month of the autumn in Castalia, is another refreshing month, with an average temperature ranging between min 43.2°F (6.2°C) and max 59.4°F (15.2°C). As October transitions to November, the average high-temperature falls from a pleasant 70.7°F (21.5°C) to a refreshing 59.4°F (15.2°C). Weather in November »
Weather in December
The first month of the winter, December, is also a fresh month in Castalia, North Carolina, with an average temperature varying between 52.5°F (11.4°C) and 38.5°F (3.6°C). During the shift to December, Castalia records a mild decrease in average high-temperature, moving from a refreshing 59.4°F (15.2°C) in November to a fresh 52.5°F (11.4°C). Weather in December »
Updated: Jun 22, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the coldest time of year?
The coldest period is January, when temperatures fluctuate between an average high of 47.7°F (8.7°C) and a low of 32.5°F (0.3°C).
What is the least humid month?
The months with the lowest humidity are January, March, April and November, with an average relative humidity of 74%.
How many days does it rain?
Throughout the year, there are 160.1 rainfall days, and 33.11" (841mm) of precipitation is accumulated.
When does it snow?
Months with snowfall are January through March and December.
What is the snowiest month?
The month with the most snowfall in Castalia is January, when snow falls for 1.9 days and typically aggregates up to 1.54" (39mm) of snow.
How much does it snow?
In Castalia, during the entire year, snow falls for 5 days and aggregates up to 3.46" (88mm) of snow.
What is the month with the lowest UV index?
January is the month with the lowest UV index, with an average maximum UV index of 2.
When is Daylight Saving Time (DST)?
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.
When it does not snow?
In Castalia, snow does not fall in April through November.
When is the highest UV index?
The months with the highest UV index are May through August, with an average maximum UV index of 6.
When are the longest days?
June has the longest days of the year, with an average of 14h and 36min of daylight.
What month has the most sunshine?
June has the most sunshine of the year, with an average of 10.6h of sunshine.
What time of the year is the hottest?
July is the warmest month of the year, registering average temperatures as high as 88.3°F (31.3°C) and as low as 70.7°F (21.5°C).
What is the rainiest month?
August is the month with the most rainfall. Rain falls for 17.8 days and accumulates 3.94" (100mm) of precipitation.
What is the most humid month in Castalia?
September is the most humid month, with an average relative humidity of 78%.
What is the driest month?
October is the month with the least rainfall in Castalia. Rain falls for 9.6 days and accumulates 2.13" (54mm) of precipitation.
What is the month with the shortest days?
December has the shortest days of the year in Castalia, with an average of 9h and 48min of daylight.
What is the month with the least sunshine?
With an average of 5.4h of sunshine, December has the least sunshine of the year.
Average temperature
Castalia, NC
The warmest month (with the highest average high temperature) is July (88.3°F).
The month with the lowest average high temperature is January (47.7°F).
The month with the highest average low temperature is July (70.7°F).
The coldest month (with the lowest average low temperature) is January (32.5°F).
Average pressure
Castalia, NC
- Average pressure in January:
30.13"Hg - Average pressure in February:
30.1"Hg - Average pressure in March:
30.09"Hg - Average pressure in April:
30.01"Hg - Average pressure in May:
30.02"Hg - Average pressure in June:
29.96"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:
30.13"Hg
The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).
Average wind speed
Castalia, NC
- Average wind speed in January:
7.8mph - Average wind speed in February:
8.5mph - Average wind speed in March:
8.6mph - Average wind speed in April:
8.8mph - Average wind speed in May:
7.3mph - Average wind speed in June:
6.5mph
- Average wind speed in July:
6mph - Average wind speed in August:
5.6mph - Average wind speed in September:
6.4mph - Average wind speed in October:
7.1mph - Average wind speed in November:
7.3mph - Average wind speed in December:
7.3mph
The windiest month (with the highest average wind speed) is April (8.8mph).
The calmest month (with the lowest average wind speed) is August (5.6mph).
Average humidity
Castalia, NC
The month with the highest relative humidity is September (78%).
The months with the lowest relative humidity are January, March, April and November (74%).
Average rainfall
Castalia, NC
- Average rainfall in January:
2.32" - Average rainfall in February:
2.48" - Average rainfall in March:
2.64" - Average rainfall in April:
2.52" - Average rainfall in May:
3.11" - Average rainfall in June:
3.15"
- Average rainfall in July:
2.91" - Average rainfall in August:
3.94" - Average rainfall in September:
2.95" - Average rainfall in October:
2.13" - Average rainfall in November:
2.44" - Average rainfall in December:
2.52"
The wettest month (with the highest rainfall) is August (3.94").
The driest month (with the least rainfall) is October (2.13").
Average rainfall days
Castalia, NC
- Average rainfall days in January:
9.6 days - Average rainfall days in February:
11.2 days - Average rainfall days in March:
13.9 days - Average rainfall days in April:
13.8 days - Average rainfall days in May:
17.3 days - Average rainfall days in June:
15.3 days
- Average rainfall days in July:
18.7 days - Average rainfall days in August:
17.8 days - Average rainfall days in September:
13.8 days - Average rainfall days in October:
9.6 days - Average rainfall days in November:
8.6 days - Average rainfall days in December:
10.5 days
The month with the highest number of rainy days is July (18.7 days).
The month with the least rainy days is November (8.6 days).
Average snowfall
Castalia, NC
The month with the highest snowfall is January (1.54").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days
Castalia, NC
- Average snowfall days in January:
1.9 days - Average snowfall days in February:
2 days - Average snowfall days in March:
0.4 days - Average snowfall days in April:
0 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 days - Average snowfall days in November:
0.1 days - Average snowfall days in December:
0.6 days
The month with the highest number of snowfall days is February (2 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight / Average sunshine
Castalia, NC
- Average daylight in January:
10h and 0min - Average daylight in February:
10h and 5min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 1min - Average daylight in May:
14h and 1min - Average daylight in June:
14h and 4min
- Average daylight in July:
14h and 2min - Average daylight in August:
13h and 3min - Average daylight in September:
12h and 2min - Average daylight in October:
11h and 2min - Average daylight in November:
10h and 2min - Average daylight in December:
9h and 5min
The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 48min).
- Average sunshine in January:
5h and 3min - Average sunshine in February:
5h and 4min - Average sunshine in March:
6h and 5min - Average sunshine in April:
9h and 2min - Average sunshine in May:
9h and 2min - Average sunshine in June:
10h and 4min
- Average sunshine in July:
10h and 3min - Average sunshine in August:
10h and 1min - Average sunshine in September:
8h and 5min - Average sunshine in October:
5h and 5min - Average sunshine in November:
5h and 4min - Average sunshine in December:
5h and 2min
The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 5h and 24min).
Average sunshine days
Castalia, NC
- Average sunshine days in January:
19.2 days - Average sunshine days in February:
15.1 days - Average sunshine days in March:
15.2 days - Average sunshine days in April:
14 days - Average sunshine days in May:
11.4 days - Average sunshine days in June:
12.5 days
- Average sunshine days in July:
9.8 days - Average sunshine days in August:
11.3 days - Average sunshine days in September:
14.5 days - Average sunshine days in October:
20 days - Average sunshine days in November:
19.6 days - Average sunshine days in December:
18.8 days
The month with the most sunshine days is October (20 days).
The month with the least sunshine days is July (9.8 days).
Average UV index
Castalia, NC
The months with the highest UV index are May, June, July and August (UV index 6).
The month with the lowest UV index is January (UV index 2).
Average cloud cover
Castalia, NC
The months with the most cloud cover are February and March (Cloud cover 43).
The month with the least cloud cover is June (Cloud cover 32).
Average visibility
Castalia, NC
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).
Castalia, North Carolina, USA
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