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
The shift into July is accompanied by a modest temperature increase, with the average high-temperature edging up from a moderately hot 81.7°F (27.6°C) in June to a hot 87.8°F (31°C). A noticeable temperature swing characterizes Walnut's July nights, dipping to an average of 64.6°F (18.1°C).Heat index
For July, the heat index is computed to be a hot 91.4°F (33°C). Undertake additional safety actions, risk of heat cramps and heat exhaustion is significant. Persistent activity may induce heatstroke.Note that heat index values are valued for light wind and location in the shade. Direct sunlight can cause a surge in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is a composite of temperature and humidity figures to convey how warm it feels. One's perception of temperature can vary depending on physical activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. Considering the impact of direct sunlight, it's possible for the heat index to surge by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Young ones often ignore the need to take a break and drink fluids. Thirst is a late-stage symptom of dehydration - hence, maintaining hydration, particularly during extended physical activities, is crucial.
Humidity
In Walnut, the average relative humidity in July is 50%.Rainfall
In Walnut, in July, it is raining for 2.4 days, with typically 0.12" (3mm) of accumulated precipitation. Throughout the year, there are 43.1 rainfall days, and 6.89" (175mm) of precipitation is accumulated.Daylight
In Walnut, the average length of the day in July is 14h and 10min.On the first day of the month, sunrise is at 5:44 am and sunset at 8:06 pm. On the last day of July, in Walnut, sunrise is at 6:02 am and sunset at 7:52 pm PDT.
Sunshine
With an average of 12.1h of sunshine, July has the most sunshine of the year in Walnut.UV index
The months with the highest UV index in Walnut are July and August, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high health hazard from unprotected exposure to Sun's UV rays for the average person.Note: The daily high UV index of 7 during July translates into the following recommendations:
Adopt measures and apply sun safety strategies. Shielding from skin and eye damage is necessary. Remember that UV radiation from the Sun is strongest between 10 a.m. and 4 p.m. Make an effort to limit direct sun exposure during this time. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure.
Frequently asked questions
How hot is it in Walnut in July?
What is the average humidity in July in Walnut?
How many days does it rain in July in Walnut?
How many hours of daylight does Walnut have in July?
When are sunrise and sunset in July in Walnut?
What month has the most sunshine in Walnut?
How many hours of sunshine does Walnut have in July?
When is the highest UV index in Walnut?
What is the UV index reading in July in Walnut?
Average temperature in July
Walnut, CA
- Average high temperature in July: 87.8°F
The warmest month (with the highest average high temperature) is August (89.2°F).
The month with the lowest average high temperature is December (63.7°F).
- Average low temperature in July: 64.6°F
The month with the highest average low temperature is August (66.2°F).
The coldest months (with the lowest average low temperature) are February and December (47.7°F).
Average pressure in July
Walnut, CA
- Average pressure in July: 29.9"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).
Average wind speed in July
Walnut, CA
- Average wind speed in July: 5mph
The windiest months (with the highest average wind speed) are April and May (5.7mph).
The calmest month (with the lowest average wind speed) is September (4.5mph).
Average humidity in July
Walnut, CA
- Average humidity in July: 50%
The months with the highest relative humidity are May and June (56%).
The month with the lowest relative humidity is November (45%).
Average rainfall in July
Walnut, CA
- Average rainfall in July: 0.12"
The wettest month (with the highest rainfall) is December (1.57").
The driest months (with the least rainfall) are June and August (0.04").
Average rainfall days in July
Walnut, CA
- Average rainfall days in July: 2.4 days
The month with the highest number of rainy days is March (6.6 days).
The month with the least rainy days is June (1 days).
Average daylight in July /
Average sunshine in July
Walnut, CA
- Average daylight in July: 14h and 1min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- 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 February (Average sunshine: 6h and 48min).
Average sunshine days in July
Walnut, CA
- Average sunshine days in July: 27 days
The month with the most sunshine days is June (28.6 days).
The month with the least sunshine days is February (22 days).
Average UV index in July
Walnut, CA
- Average UV index in July: 7
The months with the highest UV index are July and August (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 4).
Average cloud cover in July
Walnut, CA
- Average cloud cover in July: 6
The months with the most cloud cover are February, March and December (Cloud cover 21).
The month with the least cloud cover is August (Cloud cover 5).
Average visibility in July
Walnut, 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).
Walnut, California, USA
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