Contents
- Weather in August
- Frequently asked questions
- Average temperature in August
- Average pressure in August
- Average wind speed in August
- Average humidity in August
- Average rainfall in August
- Average rainfall days in August
- Average snowfall days in August
- Average daylight in August
- Average sunshine in August
- Average sunshine days in August
- Average UV index in August
- Average cloud cover in August
- Average visibility in August
Weather in August
Temperature
Pomona's temperature records reveal August as the warmest month, marked by average highs of 90.1°F (32.3°C) and lows of 65.7°F (18.7°C).Heat index
Throughout August, the heat index is evaluated at a tropical 93.2°F (34°C). Implement additional safety measures to avoid heat cramps and heat exhaustion. Persistent activity might trigger heatstroke.Evaluating the heat index requires understanding its values in the shade and with gentle winds. The heat index has the possibility to be enhanced by 15 Fahrenheit (8 Celsius) degrees when there is direct sun exposure.
Note: The heat index, also known as 'feels like' or 'apparent temperature', binds temperature metrics with humidity values to give a sense of the actual warmth. A person's impression of weather can be shaped by several aspects, among them metabolic variations, pregnancy, and levels of physical activity. Taking into account that direct sunlight can boost the heat effect, the heat index may rise by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Kids frequently ignore the importance of taking a break and rehydrating. Thirst is a late symptom of dehydration - thus, it is crucial to stay hydrated, especially during long-lasting physical activities.
Humidity
August and November, with an average relative humidity of 45%, are the least humid months.Rainfall
June and August are months with the least rain in Pomona, California, when the rain falls for 1.6 days and typically aggregates up to 0.04" (1mm) of rain.Snowfall
January, March through December are months without snowfall in Pomona.Daylight
In Pomona, the average length of the day in August is 13h and 23min.On the first day of August, sunrise is at 6:02 am and sunset at 7:51 pm. On the last day of the month, sunrise is at 6:24 am and sunset at 7:17 pm PDT.
Sunshine
In August, the average sunshine is 12h.UV index
With an average maximum UV index of 7, August is the month with the highest UV index. A UV Index estimate of 6 to 7 represents a high health risk from exposure to the Sun's UV rays for the ordinary person.Note: A maximum high daily UV index of 7 during August translates into the following directions:
Implement preventive steps and embrace sun safety standards. Protection from skin and eye distress is compulsory. Stay in the shade and limit direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is particularly strong. Remember, however, that shade structures may not provide complete protection. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What part of the year is the hottest in Pomona?
How hot is it in Pomona in August?
What are the least humid months in Pomona?
What is the average humidity in August in Pomona?
What is the driest month in Pomona?
How many days does it rain in August in Pomona?
When it does not snow in Pomona?
How many hours of daylight does Pomona have in August?
What time are sunrise and sunset in August in Pomona?
How long on average sun shines in August in Pomona?
When is the highest UV index in Pomona?
What is the UV index reading in August in Pomona?
Average temperature in August
Pomona, CA
- Average high temperature in August: 90.1°F
The warmest month (with the highest average high temperature) is August (90.1°F).
The month with the lowest average high temperature is December (63.1°F).
- Average low temperature in August: 65.7°F
The month with the highest average low temperature is August (65.7°F).
The coldest months (with the lowest average low temperature) are February and December (46.8°F).
Average pressure in August
Pomona, CA
- Average pressure in August: 29.88"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 August
Pomona, CA
- Average wind speed in August: 4.7mph
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 August
Pomona, CA
- Average humidity in August: 45%
The month with the highest relative humidity is May (56%).
The months with the lowest relative humidity are August and November (45%).
Average rainfall in August
Pomona, CA
- Average rainfall in August: 0.04"
The wettest months (with the highest rainfall) are February and December (1.65").
The driest months (with the least rainfall) are June and August (0.04").
Average rainfall days in August
Pomona, CA
- Average rainfall days in August: 1.6 days
The month with the highest number of rainy days is March (7.6 days).
The month with the least rainy days is June (0.8 days).
Average snowfall days in August
Pomona, CA
- Average snowfall days in August: 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 August /
Average sunshine in August
Pomona, CA
- Average daylight in August: 13h and 2min
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 August: 12h and 0min
The month with the most sunshine is July (Average sunshine: 12h and 12min).
The months with the least sunshine are February and December (Average sunshine: 6h and 54min).
Average sunshine days in August
Pomona, CA
- Average sunshine days in August: 28.3 days
The month with the most sunshine days is June (28.7 days).
The month with the least sunshine days is February (21.1 days).
Average UV index in August
Pomona, CA
- Average UV index in August: 7
The month with the highest UV index is August (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 4).
Average cloud cover in August
Pomona, CA
- Average cloud cover in August: 4
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 4).
Average visibility in August
Pomona, CA
- Average visibility in August: 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).
Pomona, California, USA
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