Upland
California, USA
Long-term weather forecast
Long-term weather forecast

Monthly weather forecast and climate
Upland, CA

January, the same as December, is another comfortable winter month in Upland, California, with temperature in the range of an average high of 64.6°F (18.1°C) and an average low of 46.8°F (8.2°C). In Upland, the average high-temperature is essentially the same as in December - a still enjoyable 64.6°F (18.1°C). Weather in January »

The last month of the winter, February, is also an enjoyable month in Upland, California, with average temperature fluctuating between 64°F (17.8°C) and 45.7°F (7.6°C). In Upland, California, the average high-temperature is almost the same as in January - a still comfortable 64°F (17.8°C). Weather in February »

March, the first month of the spring, in Upland, is a pleasant month, with average temperature fluctuating between 68.4°F (20.2°C) and 46.9°F (8.3°C). In March, the average high-temperature is essentially the same as in February - a pleasant 68.4°F (20.2°C). Weather in March »

April, the same as March, in Upland, California, is another pleasant spring month, with average temperature ranging between min 50.2°F (10.1°C) and max 72.9°F (22.7°C). In Upland, the average high-temperature is relatively the same as in March - a still pleasant 72.9°F (22.7°C). Weather in April »

The last month of the spring, May, is a warm month in Upland, California, with average temperature varying between 53.6°F (12°C) and 76.6°F (24.8°C). In Upland, California, the average high-temperature is almost the same as in April - a moderately hot 76.6°F (24.8°C). Weather in May »

June, the first month of the summer, in Upland, is still a warm month, with average temperature ranging between min 58.5°F (14.7°C) and max 84°F (28.9°C). In June, the average high-temperature marginally rises, from 76.6°F (24.8°C) in May, to a still moderately hot 84°F (28.9°C). Weather in June »

July is a tropical summer month in Upland, California, with temperature in the range of an average low of 64.8°F (18.2°C) and an average high of 90°F (32.2°C). In Upland, the average high-temperature marginally rises, from a moderately hot 84°F (28.9°C) in June, to a hot 90°F (32.2°C). Weather in July »

The last month of the summer, August, is another hot month in Upland, California, with average temperature ranging between min 65.8°F (18.8°C) and max 91°F (32.8°C). With an average high-temperature of 91°F (32.8°C) and an average low-temperature of 65.8°F (18.8°C), August is the warmest month. The average heat index in August is calculated to a tropical 93°F (33.9°C). Weather in August »

September, the first month of the autumn, in Upland, is also a hot month, with average temperature ranging between max 88.2°F (31.2°C) and min 63.5°F (17.5°C). In Upland, the average high-temperature is practically the same as in August - a still tropical 88.2°F (31.2°C). Weather in September »

October, the same as September, is a moderately hot autumn month in Upland, California, with temperature in the range of an average high of 79°F (26.1°C) and an average low of 57.9°F (14.4°C). In October, the average high-temperature drops, from a tropical 88.2°F (31.2°C) in September, to a warm 79°F (26.1°C). Weather in October »

The last month of the autumn, November, is also an agreeable month in Upland, California, with average temperature fluctuating between 70.7°F (21.5°C) and 50.9°F (10.5°C). In Upland, the average high-temperature in November slightly decreases, from a moderately hot 79°F (26.1°C) in October, to an agreeable 70.7°F (21.5°C). Weather in November »

December, the first month of the winter, in Upland, is also an enjoyable month, with average temperature fluctuating between 45.5°F (7.5°C) and 62.1°F (16.7°C). With an average high-temperature of 62.1°F (16.7°C) and an average low-temperature of 45.5°F (7.5°C), December is the coldest month. Weather in December »

How much does it rain in Upland?

In Upland, California, during the entire year, the rain falls for 49.6 days and collects up to 7.8" (198mm) of precipitation.

How many days does it snow in Upland?

Throughout the year, in Upland, California, there are 0.1 snowfall days.

When it does not snow in Upland?

January, March through December are months without snowfall.

What is the wettest month in Upland?

The month with the most rainfall in Upland, California, is February when the rain falls for 6 days and typically aggregates up to 1.77" (45mm) of precipitation.

When does it snow in Upland?

February is the only month when snow falls in Upland.

When does it snow the most in Upland?

The month with the most snowfall days is February when snow falls for 0.1 days.

What is the month with the least sunshine in Upland?

February and December, with an average of 6.9h of sunshine, are months with the least sunshine in Upland, California.

What are the most humid months in Upland?

Months with the highest humidity in Upland are March and May, with an average relative humidity of 54%.

What is the driest month in Upland?

June is the month with the least rainfall. Rain falls for 1.2 days and accumulates 0.04" (1mm) of precipitation.

When are the longest days in Upland?

June has the longest days of the year in Upland, California, with an average of 14.4h of daylight.

What month has the most sunshine in Upland?

With an average of 12.1h of sunshine, July has the most sunshine of the year in Upland.

What is the month with the highest UV index in Upland?

July and August, with an average maximum UV index of 7, are months with the highest UV index in Upland.

What is the warmest month in Upland?

With an average high-temperature of 91°F (32.8°C) and an average low-temperature of 65.8°F (18.8°C), August is the warmest month in Upland, California.

What is the least humid month in Upland?

August is the least humid month, with an average relative humidity of 42%.

What is the coldest month in Upland?

With an average high-temperature of 62.1°F (16.7°C) and an average low-temperature of 45.5°F (7.5°C), December is the coldest month in Upland.

What is the month with the shortest days in Upland?

With an average of 9.9h of daylight, December has the shortest days of the year in Upland, California.

What is the month with the lowest UV index in Upland?

The month with the lowest UV index in Upland is December, with an average maximum UV index of 3.
Average temperature - Upland, CA
Average rainfall - Upland, CA

The wettest month (with the highest rainfall) is February (1.77").
The driest month (with the least rainfall) is June (0.04").

Average rainfall days - Upland, CA
Average snowfall days - Upland, CA

The month with the highest number of snowfall days is February (0.1 days).
Months with the least snowfall days are January, March, April, May, June, July, August, September, October, November and December (0 days).

Average daylight / Average sunshine - Upland, CA

The month with the longest days is June (Average daylight: 14.4h).
The month with the shortest days is December (Average daylight: 9.9h).

The month with the most sunshine is July (Average sunshine: 12.1h).
Months with the least sunshine are February and December (Average sunshine: 6.9).