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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
Climate and monthly weather forecast
Weather in January
January, like December, is a frosty winter month in Mountcastle, Virginia, with an average temperature varying between 7.3°C and -1°C. The lowest temperatures are recorded in January, with averages reaching a high of 7.3°C and a low of -1°C. Weather in January »
Weather in February
The last month of the winter, February, is also a frosty month in Mountcastle, Virginia, with temperature in the range of an average low of 0.4°C and an average high of 9.8°C. Mountcastle's average high-temperature in February is a still chilly 9.8°C, indicating a subtle variation from January. Weather in February »
Weather in March
The first month of the spring, March, is a mild month in Mountcastle, Virginia, with temperature in the range of an average high of 13.3°C and an average low of 3.8°C. Mountcastle observes a slight uplift in the average high-temperature with the onset of March, adjusting from February's frosty 9.8°C to a mild 13.3°C. Weather in March »
Weather in April
April in Mountcastle, Virginia, is an enjoyable spring month, with an average temperature ranging between min 9.5°C and max 19.8°C. The transition from March to April brings a temperature rise, with average high-temperatures increasing from a mild 13.3°C to a still refreshing 19.8°C. Weather in April »
Weather in May
The last month of the spring, May, is a moderately hot month in Mountcastle, Virginia, with temperature in the range of an average high of 24.8°C and an average low of 14.4°C. May sees a temperature increase, moving from an enjoyable 19.8°C in April to a warm 24.8°C. Weather in May »
Weather in June
June, the first month of the summer in Mountcastle, is also a moderately hot month, with an average temperature varying between 29.4°C and 18.5°C. June signals a minor shift in the average high-temperature, moving from May's 24.8°C to a still moderately hot 29.4°C. Weather in June »
Weather in July
July is a tropical summer month in Mountcastle, Virginia, with an average temperature varying between 31.8°C and 20.8°C. The warmest month is July, with an average high-temperature of 31.8°C and an average low-temperature of 20.8°C. The average heat index in July is computed to be an extremely hot 41°C. Weather in July »
Weather in August
The last month of the summer, August, is another hot month in Mountcastle, Virginia, with an average temperature fluctuating between 20.1°C and 30.6°C. Entering August, the average high-temperature is recorded at a still tropical 30.6°C, exhibiting a minimal shift from July's 31.8°C. Weather in August »
Weather in September
The first month of the autumn, September, is still a warm month in Mountcastle, Virginia, with an average temperature fluctuating between 27.1°C and 17.2°C. The average high-temperature slightly decreases in September, shifting from a tropical 30.6°C in August to a warm 27.1°C. Weather in September »
Weather in October
October, the same as September, in Mountcastle, Virginia, is another pleasant autumn month, with an average temperature ranging between max 20.9°C and min 11.5°C. The beginning of October marks a decrease in the average high-temperature, transitioning from a warm 27.1°C in September to a pleasant 20.9°C. Weather in October »
Weather in November
November, the last month of the autumn in Mountcastle, is another mild month, with temperature in the range of an average high of 14.3°C and an average low of 5.3°C. The move into November indicates a reduction in the average high-temperature, down from October's pleasant 20.9°C to a mild 14.3°C. Weather in November »
Weather in December
December, the first month of the winter in Mountcastle, is still a cool month, with an average temperature ranging between min 2.1°C and max 10.1°C. December's arrival comes with a mild decrease in the average high-temperature, moving subtly from a refreshing 14.3°C in November to a cool 10.1°C. Weather in December »
Updated: Aug 9, 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 month is the coldest?
January, marked by an average high-temperature of 7.3°C and a low-temperature of -1°C, is the coldest month.
How much does it rain?
Throughout the year, there are 166.1 rainfall days, and 845mm of precipitation is accumulated.
When does it snow?
Months with snowfall are January through April, November and December.
How many days does it snow?
In Mountcastle, during the entire year, snow falls for 10.3 days and aggregates up to 145mm of snow.
What are the months with the lowest UV index in Mountcastle?
The months with the lowest UV index are January and December, with an average maximum UV index of 2.
When does it snow the most?
The month with the most snowfall in Mountcastle is February, when snow falls for 3.3 days and typically aggregates up to 40mm of snow.
What is the month with the least sunshine?
The month with the least sunshine is February, with an average of 5.2h of sunshine.
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?
May through October are months without snowfall.
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?
The month with the longest days is June, with an average of 14h and 42min of daylight.
What are the warmest months?
In Mountcastle, July is known for its average highest temperatures, reaching a high of 31.8°C and a low of 20.8°C.
What is the least humid month?
With an average relative humidity of 73%, July is the least humid month.
What month has the most sunshine?
July has the most sunshine of the year, with an average of 10.4h of sunshine.
What is the rainiest month in Mountcastle?
The month with the most rainfall is August, when the rain falls for 17.4 days and typically aggregates up to 94mm of precipitation.
What is the driest month?
The month with the least rainfall is September, when the rain falls for 13 days and typically collects 51mm of precipitation.
What is the most humid month?
December is the most humid month, with an average relative humidity of 79%.
What is the month with the shortest days?
The month with the shortest days is December, with an average of 9h and 36min of daylight.
Average temperature
Mountcastle, VA
The warmest month (with the highest average high temperature) is July (31.8°C).
The month with the lowest average high temperature is January (7.3°C).
The month with the highest average low temperature is July (20.8°C).
The coldest month (with the lowest average low temperature) is January (-1°C).
Average pressure
Mountcastle, VA
- Average pressure in January:
1019.8mbar - Average pressure in February:
1018.8mbar - Average pressure in March:
1018.7mbar - Average pressure in April:
1016.1mbar - Average pressure in May:
1016.6mbar - Average pressure in June:
1014.3mbar
- Average pressure in July:
1015mbar - Average pressure in August:
1015.6mbar - Average pressure in September:
1017.3mbar - Average pressure in October:
1017.2mbar - Average pressure in November:
1020.6mbar - Average pressure in December:
1020mbar
The month with the highest atmospheric pressure is November (1020.6mbar).
The month with the lowest atmospheric pressure is June (1014.3mbar).
Average wind speed
Mountcastle, VA
- Average wind speed in January:
11km/h - Average wind speed in February:
11.4km/h - Average wind speed in March:
11.8km/h - Average wind speed in April:
12.3km/h - Average wind speed in May:
10.6km/h - Average wind speed in June:
9.8km/h
- Average wind speed in July:
8.9km/h - Average wind speed in August:
8.5km/h - Average wind speed in September:
9.4km/h - Average wind speed in October:
10.4km/h - Average wind speed in November:
10.3km/h - Average wind speed in December:
9.8km/h
The windiest month (with the highest average wind speed) is April (12.3km/h).
The calmest month (with the lowest average wind speed) is August (8.5km/h).
Average humidity
Mountcastle, VA
The month with the highest relative humidity is December (79%).
The month with the lowest relative humidity is July (73%).
Average rainfall
Mountcastle, VA
The wettest month (with the highest rainfall) is August (94mm).
The driest month (with the least rainfall) is September (51mm).
Average rainfall days
Mountcastle, VA
- Average rainfall days in January:
10.2 days - Average rainfall days in February:
10.8 days - Average rainfall days in March:
15.1 days - Average rainfall days in April:
15.6 days - Average rainfall days in May:
18.4 days - Average rainfall days in June:
15.9 days
- Average rainfall days in July:
16.9 days - Average rainfall days in August:
17.4 days - Average rainfall days in September:
13 days - Average rainfall days in October:
11.1 days - Average rainfall days in November:
10.2 days - Average rainfall days in December:
11.5 days
The month with the highest number of rainy days is May (18.4 days).
The months with the least rainy days are January and November (10.2 days).
Average snowfall
Mountcastle, VA
The month with the highest snowfall is February (40mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days
Mountcastle, VA
- Average snowfall days in January:
3.2 days - Average snowfall days in February:
3.3 days - Average snowfall days in March:
1.8 days - Average snowfall days in April:
0.2 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 days - Average snowfall days in November:
0.3 days - Average snowfall days in December:
1.5 days
The month with the highest number of snowfall days is February (3.3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight / Average sunshine
Mountcastle, VA
- Average daylight in January:
9h and 5min - 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 4min - Average daylight in September:
12h and 2min - Average daylight in October:
11h and 1min - Average daylight in November:
10h and 1min - Average daylight in December:
9h and 4min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in January:
5h and 3min - Average sunshine in February:
5h and 1min - Average sunshine in March:
6h and 4min - Average sunshine in April:
9h and 1min - Average sunshine in May:
9h and 1min - Average sunshine in June:
10h and 2min
- Average sunshine in July:
10h and 2min - Average sunshine in August:
10h and 0min - Average sunshine in September:
8h and 5min - Average sunshine in October:
5h and 4min - Average sunshine in November:
5h and 5min - Average sunshine in December:
5h and 2min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 5h and 12min).
Average sunshine days
Mountcastle, VA
- Average sunshine days in January:
17.2 days - Average sunshine days in February:
13.9 days - Average sunshine days in March:
13.8 days - Average sunshine days in April:
12.9 days - Average sunshine days in May:
10.9 days - Average sunshine days in June:
12.1 days
- Average sunshine days in July:
11.9 days - Average sunshine days in August:
11.3 days - Average sunshine days in September:
14.9 days - Average sunshine days in October:
18.3 days - Average sunshine days in November:
18.6 days - Average sunshine days in December:
17.6 days
The month with the most sunshine days is November (18.6 days).
The month with the least sunshine days is May (10.9 days).
Average UV index
Mountcastle, VA
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 and December (UV index 2).
Average cloud cover
Mountcastle, VA
The month with the most cloud cover is March (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 33).
Average visibility
Mountcastle, VA
The months with the highest visibility are January, February, March, April, June, July, August, September, October, November and December (9km).
The month with the lowest visibility is May (8km).