August weather forecastSignal Hill, CA
August
Weather in August
The last month of the summer, August, is also a moderately hot month in Signal Hill, California, with an average temperature fluctuating between 79.5°F (26.4°C) and 64.9°F (18.3°C).Temperature
August stands out as Signal Hill's warmest month, with an average high-temperature of 79.5°F (26.4°C) and a low-temperature of 64.9°F (18.3°C).Humidity
In Signal Hill, the average relative humidity in August is 65%.Rainfall
In August, the rain falls for 2.6 days. Throughout August, 0.2" (5mm) of precipitation is accumulated. In Signal Hill, during the entire year, the rain falls for 47.2 days and collects up to 5.59" (142mm) of precipitation.Daylight
In August, the average length of the day is 13h and 22min.On the first day of August in Signal Hill, sunrise is at 6:05 am and sunset at 7:52 pm. On the last day of the month, sunrise is at 6:26 am and sunset at 7:19 pm PDT.
Sunshine
The months with the most sunshine are July and August, with an average of 12h of sunshine.UV index
The months with the highest UV index are June through September, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV radiation for the ordinary person.Note: The maximum UV index of 6 during August translates into these guidelines:
Avoid excessive sunlight. Those with lighter skin may experience burning in less than 20 minutes. Between 10 a.m. and 4 p.m., the Sun emits the most powerful UV radiation. Limit direct exposure to the Sun during these hours. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Signal Hill, CA
- Average high temperature in August: 79.5°F
The warmest month (with the highest average high temperature) is August (79.5°F).
The month with the lowest average high temperature is December (63.5°F).
- Average low temperature in August: 64.9°F
The month with the highest average low temperature is August (64.9°F).
The coldest month (with the lowest average low temperature) is February (52°F).
Average pressure in August
Signal Hill, CA
- Average pressure in August: 29.9"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The months with the lowest atmospheric pressure are June and September (29.89"Hg).
Average wind speed in August
Signal Hill, CA
- Average wind speed in August: 5.2mph
The windiest month (with the highest average wind speed) is April (6.5mph).
The calmest months (with the lowest average wind speed) are September and October (5mph).
Average humidity in August
Signal Hill, CA
- Average humidity in August: 65%
The month with the highest relative humidity is June (71%).
The month with the lowest relative humidity is November (55%).
Average rainfall in August
Signal Hill, CA
- Average rainfall in August: 0.2"
The wettest month (with the highest rainfall) is December (1.14").
The driest month (with the least rainfall) is June (0.08").
Average rainfall days in August
Signal Hill, CA
- Average rainfall days in August: 2.6 days
The month with the highest number of rainy days is March (6 days).
The month with the least rainy days is June (1.8 days).
Average daylight in August /
Average sunshine in August
Signal Hill, CA
- Average daylight in August: 13h and 24min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in August: 12h and 0min
The months with the most sunshine are July and August (Average sunshine: 12h and 0min).
The months with the least sunshine are January, February and December (Average sunshine: 6h and 48min).
Average sunshine days in August
Signal Hill, CA
- Average sunshine days in August: 24.5 days
The month with the most sunshine days is January (25.7 days).
The month with the least sunshine days is June (20.8 days).
Average UV index in August
Signal Hill, CA
- Average UV index in August: 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 August
Signal Hill, CA
- Average cloud cover in August: 7
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 7).
Average visibility in August
Signal Hill, 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).
