July weather forecastHealdsburg, CA

July
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.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
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: 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: 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: 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: 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: 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: 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: 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: 14h and 30min
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: 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: 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: 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: 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).





