July weather forecastIrwindale, CA
July
Weather in July
July, the same as June, is another warm summer month in Irwindale, California, with an average temperature ranging between min 63.5°F (17.5°C) and max 85.6°F (29.8°C).Temperature
July's arrival sees a mild rise in the average high-temperature, transitioning from June's warm 80.2°F (26.8°C) to a still moderately hot 85.6°F (29.8°C). Despite the intense daytime heat, Irwindale sustains a steady low-temperature average of 63.5°F (17.5°C) during July.Heat index
In July, the average heat index is evaluated at a hot 87.8°F (31°C). Long-standing exposure and activity could induce a feeling of tiredness and lead to heat cramps.Always consider that heat index estimations are for light winds and places in the shade. Exposure to direct sunlight may make the heat index values climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', marries air temperature and humidity to produce a value illustrating perceived warmth. The impact of weather is personal, differing among a variety of people based on differences in body mass, height, and the level of physical exertion. One should be aware that direct sunshine can amplify the perceived temperature, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Young ones are generally more prone to risk than adults due to their reduced ability to sweat. Their large skin surface area relative to their diminutive bodies and elevated heat production from their activities further enhance this risk.
Humidity
In July, the average relative humidity is 51%.Rainfall
In July, the rain falls for 3.2 days. Throughout July, 0.16" (4mm) of precipitation is accumulated. In Irwindale, during the entire year, the rain falls for 49.6 days and collects up to 8.11" (206mm) of precipitation.Snowfall
January through November are months without snowfall in Irwindale.Daylight
The average length of the day in July in Irwindale is 14h and 10min.On the first day of July in Irwindale, sunrise is at 5:44 am and sunset at 8:07 pm. On the last day of the month, sunrise is at 6:02 am and sunset at 7:53 pm PDT.
Sunshine
July has the most sunshine of the year in Irwindale, 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 in Irwindale. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV radiation for ordinary individuals.Note: The maximum UV index of 6 during July leads to these instructions:
Incorporate safeguards and honour sun safety principles. Protection from skin and eye damage is obligatory. Avoid direct sunlight between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Keep in mind that shade structures may not provide complete protection. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in July
Irwindale, CA
- Average high temperature in July: 85.6°F
The warmest month (with the highest average high temperature) is August (87.1°F).
The month with the lowest average high temperature is December (63.1°F).
- Average low temperature in July: 63.5°F
The month with the highest average low temperature is August (64.9°F).
The coldest months (with the lowest average low temperature) are February and December (47.3°F).
Average pressure in July
Irwindale, CA
- Average pressure in July: 29.91"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in July
Irwindale, CA
- Average wind speed in July: 4.9mph
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 (4.4mph).
Average humidity in July
Irwindale, CA
- Average humidity in July: 51%
The months with the highest relative humidity are May and June (57%).
The month with the lowest relative humidity is November (46%).
Average rainfall in July
Irwindale, CA
- Average rainfall in July: 0.16"
The wettest month (with the highest rainfall) is February (1.73").
The driest month (with the least rainfall) is June (0.04").
Average rainfall days in July
Irwindale, CA
- Average rainfall days in July: 3.2 days
The month with the highest number of rainy days is March (6.5 days).
The month with the least rainy days is June (1.2 days).
Average snowfall days in July
Irwindale, CA
- Average snowfall days in July: 0 days
The month with the highest number of snowfall days is December (0.1 days).
The months with the least snowfall days are January, February, March, April, May, June, July, August, September, October and November (0 days).
Average daylight in July /
Average sunshine in July
Irwindale, CA
- Average daylight in July: 14h and 12min
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 6min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The months with the least sunshine are January, February and December (Average sunshine: 6h and 54min).
Average sunshine days in July
Irwindale, CA
- Average sunshine days in July: 25.5 days
The month with the most sunshine days is June (28.3 days).
The month with the least sunshine days is February (21.5 days).
Average UV index in July
Irwindale, 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, March, November and December (UV index 4).
Average cloud cover in July
Irwindale, CA
- Average cloud cover in July: 6
The months with the most cloud cover are March and December (Cloud cover 22).
The month with the least cloud cover is August (Cloud cover 5).
Average visibility in July
Irwindale, 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).
