Union City
California, USA
Long-term weather forecast
Long-term weather forecast

Monthly weather forecast and climate
Union City, CA

January, the same as December, in Union City, California, is a moderate winter month, with average temperature fluctuating between 57.9°F (14.4°C) and 42.1°F (5.6°C). January and December, with an average high-temperature of 57.9°F (14.4°C), are the coldest months. Weather in January »
February, the last month of the winter, in Union City, is an enjoyable month, with average temperature ranging between min 45°F (7.2°C) and max 62.1°F (16.7°C). In Union City, the average high-temperature is almost the same as in January - a comfortable 62.1°F (16.7°C). Weather in February »

The first month of the spring, March, is still a comfortable month in Union City, California, with average temperature fluctuating between 48°F (8.9°C) and 64.9°F (18.3°C). In March, the average high-temperature is practically the same as in February - a still enjoyable 64.9°F (18.3°C). Weather in March »

April, like March, in Union City, California, is another comfortable spring month, with temperature in the range of an average high of 66.9°F (19.4°C) and an average low of 50°F (10°C). In Union City, the average high-temperature in April is practically the same as in March - a still enjoyable 66.9°F (19.4°C). Weather in April »

The last month of the spring, May, is an agreeable month in Union City, California, with temperature in the range of an average high of 71.1°F (21.7°C) and an average low of 53.1°F (11.7°C). In Union City, the average high-temperature is practically the same as in April - an agreeable 71.1°F (21.7°C). Weather in May »

June, the first month of the summer, in Union City, is a moderately hot month, with temperature in the range of an average high of 75°F (23.9°C) and an average low of 55.9°F (13.3°C). In Union City, the average high-temperature is almost the same as in May - a warm 75°F (23.9°C). Weather in June »

July, like June, in Union City, California, is another warm summer month, with average temperature ranging between min 57.9°F (14.4°C) and max 77°F (25°C). July through September, with an average high-temperature of 77°F (25°C), are the warmest months. Weather in July »

The last month of the summer, August, is also a moderately hot month in Union City, California, with average temperature fluctuating between 77°F (25°C) and 59°F (15°C). July through September, with an average high-temperature of 77°F (25°C), are the warmest months. Weather in August »

September, the first month of the autumn, in Union City, is still a warm month, with average temperature fluctuating between 77°F (25°C) and 57°F (13.9°C). July through September, with an average high-temperature of 77°F (25°C), are the warmest months. Weather in September »

October, like September, is another pleasant autumn month in Union City, California, with average temperature ranging between max 73°F (22.8°C) and min 54°F (12.2°C). In October, the average high-temperature is essentially the same as in September - a pleasant 73°F (22.8°C). Weather in October »

The last month of the autumn, November, is another comfortable month in Union City, California, with average temperature varying between 48°F (8.9°C) and 64°F (17.8°C). In November, the average high-temperature drops, from an agreeable 73°F (22.8°C) in October, to an enjoyable 64°F (17.8°C). Weather in November »

The first month of the winter, December, is also a moderate month in Union City, California, with average temperature fluctuating between 42.1°F (5.6°C) and 57.9°F (14.4°C). January and December, with an average high-temperature of 57.9°F (14.4°C), are the coldest months. Weather in December »

What are the coldest months in Union City?

The coldest months in Union City are January and December, with an average high-temperature of 57.9°F (14.4°C).

How much does it rain in Union City?

Throughout the year, in Union City, 15.2" (385.8mm) of rain is accumulated.

What is the wettest month in Union City?

February is the month with the most rainfall in Union City, with 3" (76.7mm) of accumulated precipitation.

When are the longest days in Union City?

The month with the longest days in Union City, California, is June, with an average of 14.7h of daylight.

What are the warmest months in Union City?

July through September, with an average high-temperature of 77°F (25°C), are warmest months.

What is the driest month in Union City?

The only month without rainfall in Union City, California, is July.

When does it rain in Union City?

Months with rainfall in Union City, California, are January through June, August through December.

What is the month with the shortest days in Union City?

With an average of 9.6h of daylight, December has the shortest days of the year in Union City, California.
Average rainfall - Union City, CA
Average daylight - Union City, CA

The month with the longest days is June (Average daylight: 14.7h).
The month with shortest days is December (Average daylight: 9.6h).