Weather in January
January, like
December, is another mild winter month in
Port Costa,
California, with an average temperature ranging between min 43°F (6.1°C) and max 56.5°F (13.6°C). January's onset sees an average high-temperature of a still refreshing 56.5°F (13.6°C), exhibiting a slight fluctuation from the previous month.
Weather in January » Weather in February
February, the last month of the winter in
Port Costa, is also a moderate month, with temperature in the range of an average high of 59.2°F (15.1°C) and an average low of 44.1°F (6.7°C). Port Costa,
California, greets February with an average high-temperature of a still mild 59.2°F (15.1°C), marking a slight deviation from the preceding month.
Weather in February » Weather in March
The first month of the spring,
March, is a refreshing month in
Port Costa,
California, with temperature in the range of an average low of 45°F (7.2°C) and an average high of 61.5°F (16.4°C). March welcomes an average high-temperature of a comfortable 61.5°F (16.4°C), not much different from the preceding month.
Weather in March »
Weather in April
April, like
March, in
Port Costa,
California, is another refreshing spring month, with an average temperature ranging between min 46.8°F (8.2°C) and max 66.7°F (19.3°C). The shift into April reveals an average high-temperature of a still comfortable 66.7°F (19.3°C), closely mirroring March's climate.
Weather in April » Weather in May
The last month of the spring,
May, is an agreeable month in
Port Costa,
California, with an average temperature ranging between max 71.1°F (21.7°C) and min 49.8°F (9.9°C). The beginning of May records an average high-temperature of an agreeable 71.1°F (21.7°C), marking a negligible difference from
April's 66.7°F (19.3°C).
Weather in May »Weather in June
The first month of the summer,
June, is a warm month in
Port Costa,
California, with an average temperature fluctuating between 54.1°F (12.3°C) and 77.7°F (25.4°C). The onset of June introduces a subtle rise in the average high-temperature, nudging from a pleasant 71.1°F (21.7°C) in
May to a moderately hot 77.7°F (25.4°C).
Weather in June »
Weather in July
July, like
June, in
Port Costa,
California, is another warm summer month, with temperature in the range of an average low of 55.4°F (13°C) and an average high of 80.1°F (26.7°C). The warmest period falls in July and
September, when the average high-temperature reaches 80.1°F (26.7°C).
Weather in July » Weather in August
The last month of the summer,
August, is also a moderately hot month in
Port Costa,
California, with an average temperature varying between 79.7°F (26.5°C) and 56.5°F (13.6°C). The onset of August notes an average high-temperature of a still warm 79.7°F (26.5°C), subtly shifted from
July's 80.1°F (26.7°C).
Weather in August »Weather in September
September, the first month of the autumn in
Port Costa, is also a moderately hot month, with temperature in the range of an average high of 80.1°F (26.7°C) and an average low of 56.3°F (13.5°C). Temperatures reach their maximum during
July and September, recording an average high-temperature of 80.1°F (26.7°C).
Weather in September »
Weather in October
October, like
September, is an agreeable autumn month in
Port Costa,
California, with an average temperature ranging between min 54°F (12.2°C) and max 72.9°F (22.7°C). Port Costa's transition into October involves a gentle shift in temperature, receding from a warm 80.1°F (26.7°C) in September to a pleasant 72.9°F (22.7°C).
Weather in October » Weather in November
November, the last month of the autumn in
Port Costa, is another comfortable month, with an average temperature ranging between max 63°F (17.2°C) and min 47.7°F (8.7°C). November shows a mild decline in the average high-temperature, falling from
October's pleasant 72.9°F (22.7°C) to a comfortable 63°F (17.2°C).
Weather in November » Weather in December
The first month of the winter,
December, is still a mild month in
Port Costa,
California, with an average temperature varying between 55.4°F (13°C) and 43.2°F (6.2°C). The coldest period is December, when temperatures fluctuate between an average high of 55.4°F (13°C) and a low of 43.2°F (6.2°C).
Weather in December » [Resources]