Contents
- Weather in July
- Frequently asked questions
- Average temperature in July
- Average pressure in July
- Average wind speed in July
- Average humidity in July
- Average rainfall in July
- Average rainfall days in July
- Average daylight in July
- Average sunshine in July
- Average sunshine days in July
- Average UV index in July
- Average cloud cover in July
- Average visibility in July
Weather in July
Temperature
July records an average high-temperature of a still warm 81.7°F (27.6°C), indicating a minor variation from the preceding month. Bostonia's average low-temperature during July nights is observed to be a comfortable 63.9°F (17.7°C).Heat index
In July, the heat index is estimated at 84.2°F (29°C). Staying active during long-term exposure might result in a state of exhaustion and cause heat cramps.Factoring in the heat index, values are geared towards shaded areas with light breezes. A direct sunlight exposure may boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', evaluates the perceived heat by adding the effect of moisture in the air. Physical activity, clothing, and metabolic variations are additional factors that impact an individual's perception of temperature. It is essential to be conscious of the fact that direct sunlight can intensify the felt heat, leading to an elevation in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. In general, younger individuals are at greater risk than adults because they tend to sweat less. Also, having a larger skin surface to body size ratio and greater heat production due to their active behavior contribute to this danger.
Humidity
In Bostonia, the average relative humidity in July is 62%.Rainfall
In Bostonia, California, in July, during 4.9 rainfall days, 0.39" (10mm) of precipitation is typically accumulated. Throughout the year, there are 56.1 rainfall days, and 8.27" (210mm) of precipitation is accumulated.Daylight
In Bostonia, the average length of the day in July is 14h and 4min.On the first day of July, sunrise is at 5:43 am and sunset at 8:00 pm. On the last day of the month, sunrise is at 6:01 am and sunset at 7:46 pm PDT.
Sunshine
The month with the most sunshine is July, with an average of 12.1h of sunshine.UV index
June through September, with an average maximum UV index of 6, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.Note: During July, 6 as the daily maximum UV index converts into the following advice:
Sustain precautions and conform to sun safety norms. Preventing sunburn is necessary. Avoid direct exposure to the Sun between 10 a.m. and 4 p.m., the peak period for UV radiation, noting that objects like parasols or canopies might not offer complete sun protection. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in July?
What is the average humidity in July?
How many days does it rain in July?
How many hours of daylight does Bostonia have in July?
When are sunrise and sunset in July?
What month has the most sunshine?
How many hours of sunshine does Bostonia have in July?
What are the months with the highest UV index?
What is the UV index intensity in July?
Average temperature in July
Bostonia, CA
- Average high temperature in July: 81.7°F
The warmest month (with the highest average high temperature) is August (83.8°F).
The month with the lowest average high temperature is December (63.7°F).
- Average low temperature in July: 63.9°F
The month with the highest average low temperature is August (65.8°F).
The coldest month (with the lowest average low temperature) is December (47.8°F).
Average pressure in July
Bostonia, CA
- Average pressure in July: 29.9"Hg
The month with the highest atmospheric pressure is January (30.09"Hg).
The months with the lowest atmospheric pressure are June and September (29.87"Hg).
Average wind speed in July
Bostonia, CA
- Average wind speed in July: 4.7mph
The windiest month (with the highest average wind speed) is April (5.5mph).
The calmest month (with the lowest average wind speed) is October (4.3mph).
Average humidity in July
Bostonia, CA
- Average humidity in July: 62%
The month with the highest relative humidity is May (66%).
The month with the lowest relative humidity is November (53%).
Average rainfall in July
Bostonia, CA
- Average rainfall in July: 0.39"
The wettest month (with the highest rainfall) is February (1.81").
The driest month (with the least rainfall) is June (0.04").
Average rainfall days in July
Bostonia, CA
- Average rainfall days in July: 4.9 days
The month with the highest number of rainy days is March (7.7 days).
The month with the least rainy days is June (1.4 days).
Average daylight in July /
Average sunshine in July
Bostonia, CA
- Average daylight in July: 14h and 1min
The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in July: 12h and 1min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 6h and 42min).
Average sunshine days in July
Bostonia, CA
- Average sunshine days in July: 22.5 days
The month with the most sunshine days is June (27.7 days).
The month with the least sunshine days is February (21.9 days).
Average UV index in July
Bostonia, CA
- Average UV index in July: 6
The months with the highest UV index are June, July, August and September (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 4).
Average cloud cover in July
Bostonia, CA
- Average cloud cover in July: 9
The months with the most cloud cover are March and December (Cloud cover 23).
The month with the least cloud cover is August (Cloud cover 7).
Average visibility in July
Bostonia, 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).
Bostonia, California, USA
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