July weather forecast
Healdsburg, CA

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Neat rows of plants in a farm with a view of a red farmhouse up the hill in Healdsburg, California
Neat rows of plants in a farm with a view of a red farmhouse up the hill in Healdsburg, California

Weather in July

July, like June, in Healdsburg, California, is a moderately hot summer month, with an average temperature ranging between max 84.7°F (29.3°C) and min 54.7°F (12.6°C).

Temperature

July, on average, is the warmest month, registering a high temperature of 84.7°F (29.3°C) and a low of 54.7°F (12.6°C).

Heat index

July's heat index is evaluated at a hot 87.8°F (31°C). One might feel worn out with persistent exposure and activity, resulting in heat cramps.
Heat index specifics point out values are for conditions of shade and a slight breeze. The heat index may scale up by 15 Fahrenheit (8 Celsius) degrees with direct sun exposure.
Note: The heat index, also known as 'felt air temperature' or 'real feel', reflects the blend of air temperature and relative humidity to give a temperature impression. This effect is personal, influenced by the individual's physical activity and heat sensitivity, shaped by factors including wind, attire, and metabolic variations. In direct sunlight, the heat's impact can be heightened, potentially leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Young individuals are typically more threatened than adults due to their reduced perspiration. Also, the larger skin surface proportionate to their small bodies and the increased heat from their activities magnify their risk.

Humidity

The average relative humidity in July is 58%.

Rainfall

The months with the least rainfall are July and August Rain falls for 1 days and accumulates 0.04" (1mm) of rain.

Snowfall

January, March through December are months without snowfall.

Daylight

In Healdsburg, the average length of the day in July is 14h and 33min.
On the first day of the month, sunrise is at 5:51 am and sunset at 8:39 pm. On the last day of July, sunrise is at 6:13 am and sunset at 8:22 pm PDT.

Sunshine

The month with the most sunshine is July, with an average of 12h of sunshine.

UV index

The months with the highest UV index are June through August, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation for average individuals.
Note: In July, the maximum UV index of 6 transforms into these recommendations:
Take precautions and utilize sun safety practices. Protection against skin and eye damage is required. The Sun's UV radiation is most potent between 10 a.m. and 4 p.m. Try to limit direct exposure to the Sun during this period. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.
Updated: Aug 20, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the warmest month?

July stands out as Healdsburg's warmest month, with temperatures ranging between an average high of 84.7°F (29.3°C) and a low of 54.7°F (12.6°C).

How hot is July?

In July, in Healdsburg, the average high-temperature is 84.7°F (29.3°C), and the average low-temperature is 54.7°F (12.6°C). In July, the average heat index (a.k.a. 'apparent temperature', 'feels like'), which combines relative humidity and air temperature, is evaluated at 87.8°F (31°C).

What is the average humidity in July?

In Healdsburg, the average relative humidity in July is 58%.

What is the driest month?

The months with the least rainfall are July and August Rain falls for 1 days and accumulates 0.04" (1mm) of rain.

How much does it rain in July?

In Healdsburg, during July, the rain falls for 1 days and regularly aggregates up to 0.04" (1mm) of precipitation.

When it does not snow?

In Healdsburg, snow does not fall in January, March through December.

What is the average length of the day in July?

In Healdsburg, the average day length in July is 14h and 33min.

When is the sunrise / sunset in July in Healdsburg?

On the first day of July, sunrise is at 5:51 am and sunset at 8:39 pm. On the last day of the month, sunrise is at 6:13 am and sunset at 8:22 pm PDT.

What month has the most sunshine in Healdsburg?

With an average of 12h of sunshine, July has the most sunshine of the year.

How long on average sun shines in July?

The average sunshine duration in July is 12h.

What are the months with the highest UV index?

June through August, with an average maximum UV index of 6, are months with the highest UV index.

What is the UV index intensity in July?

In Healdsburg, the average daily maximum UV index in July is 6. A UV Index reading of 6 to 7 represents a high hazard to health from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in July
Healdsburg, CA

Average temperature in July - Healdsburg, CA
  • Average high temperature in July: 84.7°F

The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is December (55°F).

  • Average low temperature in July: 54.7°F

The month with the highest average low temperature is August (55°F).
The coldest month (with the lowest average low temperature) is December (40.1°F).

Average pressure in July
Healdsburg, CA

Average pressure in July - Healdsburg, CA
  • Average pressure in July: 29.93"Hg

The month with the highest atmospheric pressure is January (30.13"Hg).
The months with the lowest atmospheric pressure are June, August and September (29.92"Hg).

Average wind speed in July
Healdsburg, CA

Average wind speed in July - Healdsburg, CA
  • Average wind speed in July: 5mph

The windiest months (with the highest average wind speed) are April and May (6.2mph).
The calmest month (with the lowest average wind speed) is November (4.5mph).

Average humidity in July
Healdsburg, CA

Average humidity in July - Healdsburg, CA
  • Average humidity in July: 58%

The month with the highest relative humidity is March (76%).
The month with the lowest relative humidity is September (57%).

Average rainfall in July
Healdsburg, CA

Average rainfall in July - Healdsburg, CA
  • Average rainfall in July: 0.04"

The wettest month (with the highest rainfall) is February (4.33").
The driest months (with the least rainfall) are July and August (0.04").

Average rainfall days in July
Healdsburg, CA

Average rainfall days in July - Healdsburg, CA
  • Average rainfall days in July: 1 days

The month with the highest number of rainy days is March (14.2 days).
The month with the least rainy days is August (0.8 days).

Average snowfall in July
Healdsburg, CA

Average snowfall in July - Healdsburg, CA
  • Average snowfall in July: 0"

The month with the highest snowfall is February (0.04").
The months with the least snowfall are January, March, April, May, June, July, August, September, October, November and December (0").

Average snowfall days in July
Healdsburg, CA

Average snowfall days in July - Healdsburg, CA
  • Average snowfall days in July: 0 days

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

Average daylight in July /
Average sunshine in July
Healdsburg, CA

Average daylight in July / Average sunshine in July - Healdsburg, CA
  • Average daylight in July: 14h and 3min

The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).

  • Average sunshine in July: 12h and 0min

The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 36min).

Average sunshine days in July
Healdsburg, CA

Average sunshine days in July - Healdsburg, CA
  • Average sunshine days in July: 29.8 days

The month with the most sunshine days is July (29.8 days).
The month with the least sunshine days is March (14.8 days).

Average UV index in July
Healdsburg, CA

Average UV index in July - Healdsburg, CA
  • Average UV index in July: 6

The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 3).

Average cloud cover in July
Healdsburg, CA

Average cloud cover in July - Healdsburg, CA
  • Average cloud cover in July: 6

The month with the most cloud cover is March (Cloud cover 41).
The months with the least cloud cover are July and August (Cloud cover 6).

Average visibility in July
Healdsburg, CA

Average visibility in July - Healdsburg, CA
  • Average visibility in July: 6mi

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

Healdsburg, California, USA

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