Monthly weather forecast and climate
Julian, CA

Weather in January

January, like December, in Julian, California, is another enjoyable winter month, with temperature in the range of an average low of 45°F (7.2°C) and an average high of 63.9°F (17.7°C). In Julian, the average high-temperature is practically the same as in December - a still comfortable 63.9°F (17.7°C). Weather in January »

Weather in February

February, the last month of the winter, in Julian, is also an enjoyable month, with temperature in the range of an average high of 63.3°F (17.4°C) and an average low of 44.2°F (6.8°C). In Julian, the average high-temperature is practically the same as in January - a still comfortable 63.3°F (17.4°C). Weather in February »

Weather in March

March, the first month of the spring, in Julian, is still a comfortable month, with average temperature ranging between max 66.7°F (19.3°C) and min 46°F (7.8°C). In Julian, the average high-temperature in March is relatively the same as in February - a still enjoyable 66.7°F (19.3°C). Weather in March »

Weather in April

April in Julian, California, is an agreeable spring month, with average temperature fluctuating between 70.7°F (21.5°C) and 47.8°F (8.8°C). In Julian, the average high-temperature in April is relatively the same as in March - a pleasant 70.7°F (21.5°C). Weather in April »

Weather in May

May, the last month of the spring, in Julian, is a warm month, with average temperature varying between 51.3°F (10.7°C) and 73.6°F (23.1°C). In May, the average high-temperature is almost the same as in April - a moderately hot 73.6°F (23.1°C). Weather in May »

Weather in June

The first month of the summer, June, is still a warm month in Julian, California, with average temperature varying between 81.3°F (27.4°C) and 56.3°F (13.5°C). In Julian, the average high-temperature in June slightly increases, from a moderately hot 73.6°F (23.1°C) in May, to a still warm 81.3°F (27.4°C). Weather in June »

Weather in July

July, the same as June, is another warm summer month in Julian, California, with average temperature varying between 62.8°F (17.1°C) and 85.8°F (29.9°C). In July, the average high-temperature is practically the same as in June - a still moderately hot 85.8°F (29.9°C). Weather in July »

Weather in August

The last month of the summer, August, is a tropical month in Julian, California, with average temperature varying between 64.9°F (18.3°C) and 87.3°F (30.7°C). The warmest month is August, with an average high-temperature of 87.3°F (30.7°C) and an average low-temperature of 64.9°F (18.3°C). The average heat index in August is calculated to a hot 90.5°F (32.5°C). Weather in August »

Weather in September

September, the first month of the autumn, in Julian, is also a moderately hot month, with average temperature varying between 84.2°F (29°C) and 62.8°F (17.1°C). In September, the average high-temperature is almost the same as in August - a warm 84.2°F (29°C). Weather in September »

Weather in October

October, the same as September, is a moderately hot autumn month in Julian, California, with average temperature fluctuating between 56.3°F (13.5°C) and 76.8°F (24.9°C). In October, the average high-temperature marginally drops, from 84.2°F (29°C) in September, to a still warm 76.8°F (24.9°C). Weather in October »

Weather in November

The last month of the autumn, November, is also an agreeable month in Julian, California, with average temperature fluctuating between 69.1°F (20.6°C) and 50.2°F (10.1°C). In Julian, the average high-temperature slightly decreases, from a warm 76.8°F (24.9°C) in October, to an agreeable 69.1°F (20.6°C). Weather in November »

Weather in December

December, the first month of the winter, in Julian, is still a comfortable month, with average temperature varying between 61.3°F (16.3°C) and 44.6°F (7°C). The coldest month is December, with an average high-temperature of 61.3°F (16.3°C) and an average low-temperature of 44.6°F (7°C). Weather in December »
[Resources]

FAQ

How many days does it rain in Julian?

Throughout the year, in Julian, there are 62 rainfall days, and 6.38" (162mm) of precipitation is accumulated.

When does it snow in Julian?

Months with snowfall in Julian are January through May, November and December.

How much does it snow in Julian?

In Julian, during the entire year, snow aggregates up to 22" (558.7mm).

What is the rainiest month in Julian?

The month with the most rainfall in Julian, California, is February when the rain falls for 6.4 days and typically aggregates up to 0.94" (24mm) of precipitation.

When does it snow the most in Julian?

March is the month with the most snowfall, with 6.7" (170.2mm) of accumulated snow.

What is the most humid month in Julian?

The most humid month is May, with an average relative humidity of 62%.

What is the driest month in Julian?

The month with the least rainfall in Julian is June when the rain falls for 1.5 days and typically collects 0.08" (2mm) of precipitation.

When it does not snow in Julian?

In Julian snow does not fall in June through October.

When are the longest days in Julian?

The month with the longest days is June, with an average of 14.3h of daylight.

What is the month with the most sunshine in Julian?

Months with the most sunshine in Julian, California, are June and July, with an average of 12.1h of sunshine.

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

Months with the highest UV index in Julian, California, are June through September, with an average maximum UV index of 6.

What is the warmest month in Julian?

August is the warmest month, with an average high-temperature of 87.3°F (30.7°C) and an average low-temperature of 64.9°F (18.3°C).

What is the least humid month in Julian?

November is the least humid month in Julian, California, with an average relative humidity of 51%.

When is the lowest UV index in Julian?

November and December, with an average maximum UV index of 3, are months with the lowest UV index in Julian.

What is the coldest month in Julian?

December is the coldest month in Julian, with an average high-temperature of 61.3°F (16.3°C) and an average low-temperature of 44.6°F (7°C).

What is the month with the shortest days in Julian?

December has the shortest days of the year in Julian, with an average of 10h of daylight.

What is the month with the least sunshine in Julian?

The month with the least sunshine in Julian is December, with an average of 6.7h of sunshine.

Average temperature
Julian, CA

Average temperature - Julian, CA

The warmest month (with the highest average high temperature) is August (87.3°F).
The month with the lowest average high temperature is December (61.3°F).

The month with the highest average low temperature is August (64.9°F).
The coldest month (with the lowest average low temperature) is February (44.2°F).

[Resources]

Average pressure
Julian, CA

Average pressure - Julian, CA

The month with the highest atmospheric pressure is January (30.09").
The month with the lowest atmospheric pressure is June (29.85").

[Resources]

Average wind speed
Julian, CA

Average wind speed - Julian, CA

The windiest month (with the highest average wind speed) is May (5.7mph).
The calmest month (with the lowest average wind speed) is September (4.1mph).

[Resources]

Average rainfall
Julian, CA

Average rainfall - Julian, CA

The wettest month (with the highest rainfall) is February (0.94").
The driest month (with the least rainfall) is June (0.08").

[Resources]

Average rainfall days
Julian, CA

Average rainfall days - Julian, CA

The month with the highest number of rainy days is March (7.6 days).
The month with the least rainy days is June (1.5 days).

[Resources]

Average snowfall
Julian, CA

Average snowfall - Julian, CA

The month with the highest snowfall is March (6.7").
Months with the least snowfall are June, July, August, September and October (0").

[Resources]

Average daylight / Average sunshine
Julian, CA

Average daylight / Average sunshine - Julian, CA

The month with the longest days is June (Average daylight: 14.3h).
The month with the shortest days is December (Average daylight: 10h).

Months with the most sunshine are June and July (Average sunshine: 12.1h).
The month with the least sunshine is December (Average sunshine: 6.7h).

[Resources]

Average sunshine days
Julian, CA

Average sunshine days - Julian, CA

The month with the most sunshine days is June (27.5 days).
The month with the least sunshine days is July (19.4 days).

[Resources]

Average UV index
Julian, CA

Average UV index - Julian, CA

Months with the highest UV index are June, July, August and September (UV index 6).
Months with the lowest UV index are November and December (UV index 3).

[Resources]

Average visibility
Julian, CA

Average visibility - Julian, CA

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

[Resources]