Climate and monthly weather forecastCastella, CA
Climate and monthly weather forecast
Weather in January
January is a frosty winter month in Castella, California, with an average temperature varying between 43.3°F (6.3°C) and 28.8°F (-1.8°C). Castella's average high-temperature in January is a chilly 43.3°F (6.3°C), indicating a subtle variation from December. Weather in January »Weather in February
February, the last month of the winter in Castella, is also a frosty month, with temperature in the range of an average low of 28.8°F (-1.8°C) and an average high of 44.1°F (6.7°C). February notes an average high-temperature of a still frosty 44.1°F (6.7°C), subtly differing from January's 43.3°F (6.3°C). Weather in February »Weather in March
March, the first month of the spring in Castella, is also a frosty month, with temperature in the range of an average high of 47.5°F (8.6°C) and an average low of 30.7°F (-0.7°C). In the transition from February to March, Castella reports an average high-temperature of a still frosty 47.5°F (8.6°C), indicating a close resemblance to the prior month. Weather in March »Weather in April
April is a refreshing spring month in Castella, California, with an average temperature varying between 56.1°F (13.4°C) and 33.4°F (0.8°C). The start of April is characterized by a subtle increase in the average high-temperature, transitioning from a chilly 47.5°F (8.6°C) in March to a mild 56.1°F (13.4°C). Weather in April »Weather in May
The last month of the spring, May, is a comfortable month in Castella, California, with an average temperature ranging between min 38.8°F (3.8°C) and max 65.1°F (18.4°C). A slight uplift in the average high-temperature marks May, adjusting from April's mild 56.1°F (13.4°C) to an enjoyable 65.1°F (18.4°C). Weather in May »Weather in June
The first month of the summer, June, is a warm month in Castella, California, with an average temperature varying between 75.4°F (24.1°C) and 45.3°F (7.4°C). As May transitions into June, a change in temperatures is observed, with average highs moving from an enjoyable 65.1°F (18.4°C) to a warm 75.4°F (24.1°C). Weather in June »Weather in July
July, the same as June, is another warm summer month in Castella, California, with an average temperature varying between 51.4°F (10.8°C) and 85.6°F (29.8°C). The average temperatures reach their apex in July, averaging 85.6°F (29.8°C) at the high end and 51.4°F (10.8°C) at the low end. July's average heat index is appraised at a hot 86°F (30°C). Weather in July »Weather in August
The last month of the summer, August, is another warm month in Castella, California, with an average temperature fluctuating between 84.7°F (29.3°C) and 51.4°F (10.8°C). August ushers in an average high-temperature of a still moderately hot 84.7°F (29.3°C), aligning closely with the preceding month. Weather in August »Weather in September
The first month of the autumn, September, is still a warm month in Castella, California, with temperature in the range of an average low of 46.2°F (7.9°C) and an average high of 77.2°F (25.1°C). September is characterized by a mild reduction in the average high-temperature, from 84.7°F (29.3°C) in August to a still moderately hot 77.2°F (25.1°C). Weather in September »Weather in October
October, like September, in Castella, California, is another refreshing autumn month, with an average temperature ranging between min 39.7°F (4.3°C) and max 63.9°F (17.7°C). As September transitions to October, the average high-temperature falls from a warm 77.2°F (25.1°C) to an enjoyable 63.9°F (17.7°C). Weather in October »Weather in November
November, the last month of the autumn in Castella, is also a fresh month, with an average temperature varying between 32.5°F (0.3°C) and 50.4°F (10.2°C). As Castella enters November, the average high-temperature decreases from the a refreshing 63.9°F (17.7°C) of October to a fresh 50.4°F (10.2°C). Weather in November »Weather in December
The first month of the winter, December, is also a wintry month in Castella, California, with an average temperature ranging between min 26.8°F (-2.9°C) and max 41°F (5°C). In Castella, the month of December is known for its lowest average temperatures, reaching a high of 41°F (5°C) and a low of 26.8°F (-2.9°C). Weather in December »Updated: Feb 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
In Castella, during the entire year, the rain falls for 113.4 days and collects up to 31.3" (795mm) of precipitation.
January through May, October through December are months with snowfall.
January is the month with the most snowfall. Snow falls for 5.8 days and accumulates 12.6" (320mm) of snow.
Throughout the year, there are 28.7 snowfall days, and 45.51" (1156mm) of snow is accumulated.
The months with the lowest UV index in Castella are January through March, November and December, with an average maximum UV index of 2.
The most humid month is March, with an average relative humidity of 81%.
The month with the most rainfall in Castella is March, when the rain falls for 17.3 days and typically aggregates up to 5.55" (141mm) of precipitation.
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from PST to PDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from PDT to PST.
In Castella, California, snow does not fall in June through September.
June has the longest days of the year, with an average of 15h and 6min of daylight.
The months with the highest UV index are June and July, with an average maximum UV index of 6.
The highest temperatures in Castella, California, are recorded in July, with averages reaching a high of 85.6°F (29.8°C) and a low of 51.4°F (10.8°C).
The month with the least rainfall is July, when the rain falls for 3.4 days and typically collects 0.24" (6mm) of precipitation.
July has the most sunshine of the year in Castella, California, with an average of 12.1h of sunshine.
August is the least humid month, with an average relative humidity of 44%.
The month of December sees the average lowest temperatures, reaching 41°F (5°C) at the peak and 26.8°F (-2.9°C) at the low.
The month with the shortest days in Castella is December, with an average of 9h and 18min of daylight.
With an average of 5.2h of sunshine, December has the least sunshine of the year in Castella.
Average temperature
Castella, CA
The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is December (41°F).
The months with the highest average low temperature are July and August (51.4°F).
The coldest month (with the lowest average low temperature) is December (26.8°F).
Average pressure
Castella, CA
- Average pressure in January:
30.17"Hg - Average pressure in February:
30.1"Hg - Average pressure in March:
30.06"Hg - Average pressure in April:
30.03"Hg - Average pressure in May:
29.97"Hg - Average pressure in June:
29.94"Hg
- Average pressure in July:
29.94"Hg - Average pressure in August:
29.93"Hg - Average pressure in September:
29.96"Hg - Average pressure in October:
30.03"Hg - Average pressure in November:
30.1"Hg - Average pressure in December:
30.15"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is August (29.93"Hg).
Average wind speed
Castella, CA
- Average wind speed in January:
4.8mph - Average wind speed in February:
5.3mph - Average wind speed in March:
5.7mph - Average wind speed in April:
5.6mph - Average wind speed in May:
5mph - Average wind speed in June:
5.1mph
- Average wind speed in July:
4.3mph - Average wind speed in August:
4.1mph - Average wind speed in September:
4.7mph - Average wind speed in October:
5.1mph - Average wind speed in November:
4.8mph - Average wind speed in December:
4.8mph
The windiest month (with the highest average wind speed) is March (5.7mph).
The calmest month (with the lowest average wind speed) is August (4.1mph).
Average humidity
Castella, CA
The month with the highest relative humidity is March (81%).
The month with the lowest relative humidity is August (44%).
Average rainfall
Castella, CA
- Average rainfall in January:
5.28" - Average rainfall in February:
4.53" - Average rainfall in March:
5.55" - Average rainfall in April:
2.6" - Average rainfall in May:
2.17" - Average rainfall in June:
0.59"
- Average rainfall in July:
0.24" - Average rainfall in August:
0.28" - Average rainfall in September:
0.51" - Average rainfall in October:
1.77" - Average rainfall in November:
2.83" - Average rainfall in December:
4.96"
The wettest month (with the highest rainfall) is March (5.55").
The driest month (with the least rainfall) is July (0.24").
Average rainfall days
Castella, CA
- Average rainfall days in January:
12.3 days - Average rainfall days in February:
10.3 days - Average rainfall days in March:
17.3 days - Average rainfall days in April:
14.3 days - Average rainfall days in May:
11.3 days - Average rainfall days in June:
6.7 days
- Average rainfall days in July:
3.4 days - Average rainfall days in August:
2.7 days - Average rainfall days in September:
4.6 days - Average rainfall days in October:
7.1 days - Average rainfall days in November:
10.3 days - Average rainfall days in December:
13.1 days
The month with the highest number of rainy days is March (17.3 days).
The month with the least rainy days is August (2.7 days).
Average snowfall
Castella, CA
- Average snowfall in January:
12.6" - Average snowfall in February:
9.65" - Average snowfall in March:
9.17" - Average snowfall in April:
1.93" - Average snowfall in May:
0.04" - Average snowfall in June:
0"
The month with the highest snowfall is January (12.6").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Castella, CA
- Average snowfall days in January:
5.8 days - Average snowfall days in February:
6.1 days - Average snowfall days in March:
5.9 days - Average snowfall days in April:
1.8 days - Average snowfall days in May:
0.3 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:
0.1 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 December (6.4 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight / Average sunshine
Castella, CA
- Average daylight in January:
9h and 36min - 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 30min - Average daylight in June:
15h and 6min
- Average daylight in July:
14h and 48min - Average daylight in August:
13h and 48min - Average daylight in September:
12h and 30min - Average daylight in October:
11h and 6min - Average daylight in November:
9h and 54min - Average daylight in December:
9h and 18min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in January:
5h and 24min - Average sunshine in February:
5h and 54min - Average sunshine in March:
7h and 12min - Average sunshine in April:
10h and 0min - Average sunshine in May:
10h and 54min - Average sunshine in June:
11h and 48min
- Average sunshine in July:
12h and 6min - Average sunshine in August:
12h and 0min - Average sunshine in September:
11h and 6min - Average sunshine in October:
7h and 6min - Average sunshine in November:
6h and 24min - Average sunshine in December:
5h and 12min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 12min).
Average sunshine days
Castella, CA
- Average sunshine days in January:
14.8 days - Average sunshine days in February:
13.4 days - Average sunshine days in March:
11.1 days - Average sunshine days in April:
13 days - Average sunshine days in May:
17.3 days - Average sunshine days in June:
20.8 days
- Average sunshine days in July:
24.6 days - Average sunshine days in August:
25.7 days - Average sunshine days in September:
23.9 days - Average sunshine days in October:
22.2 days - Average sunshine days in November:
17.7 days - Average sunshine days in December:
13.9 days
The month with the most sunshine days is August (25.7 days).
The month with the least sunshine days is March (11.1 days).
Average UV index
Castella, CA
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover
Castella, CA
The month with the most cloud cover is March (Cloud cover 47).
The month with the least cloud cover is August (Cloud cover 6).
Average visibility
Castella, CA
The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February, March and December (5mi).
