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 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
August brings an average high-temperature of a still fiery hot 95.7°F (35.4°C), showing a slight difference from July's 97.2°F (36.2°C). A notable decrease from the day's highest temperature marks August, culminating in an average low of 61.5°F (16.4°C).Humidity
The average relative humidity in August in Grimes is 39%.Rainfall
The months with the least rainfall in Grimes are July and August Rain falls for 1.3 days and accumulates 0.04" (1mm) of rain.Daylight
The average length of the day in August is 13h and 38min.On the first day of the month, sunrise is at 6:08 am and sunset at 8:18 pm. On the last day of August, sunrise is at 6:36 am and sunset at 7:39 pm PDT.
Sunshine
In Grimes, the average sunshine in August is 11.9h.UV index
The average daily maximum UV index in August is 6. A UV Index reading of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for average individuals.Note: A maximum high daily UV index of 6 during August translates into the following directions:
Avoid excessive sunlight. Those with lighter skin may experience burning in less than 20 minutes. During the period from 10 a.m. to 4 p.m., UV radiation is highest. Try to avoid direct sunlight during these hours. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is it in August?
What is the average humidity in August?
What is the driest month?
How much does it rain in August?
How many hours of daylight does Grimes have in August?
What time are sunrise and sunset in August?
How long on average sun shines in August?
What is the UV index intensity in August?
Average temperature in August
Grimes, CA
- Average high temperature in August: 95.7°F
The warmest month (with the highest average high temperature) is July (97.2°F).
The month with the lowest average high temperature is December (54.5°F).
- Average low temperature in August: 61.5°F
The month with the highest average low temperature is July (62.1°F).
The coldest month (with the lowest average low temperature) is December (41.4°F).
Average pressure in August
Grimes, CA
- Average pressure in August: 29.91"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in August
Grimes, CA
- Average wind speed in August: 4.8mph
The windiest month (with the highest average wind speed) is March (6.1mph).
The calmest month (with the lowest average wind speed) is September (4.5mph).
Average humidity in August
Grimes, CA
- Average humidity in August: 39%
The month with the highest relative humidity is March (73%).
The months with the lowest relative humidity are July and September (38%).
Average rainfall in August
Grimes, CA
- Average rainfall in August: 0.04"
The wettest month (with the highest rainfall) is February (3.07").
The driest months (with the least rainfall) are July and August (0.04").
Average rainfall days in August
Grimes, CA
- Average rainfall days in August: 1.3 days
The month with the highest number of rainy days is March (13.8 days).
The month with the least rainy days is July (0.9 days).
Average daylight in August /
Average sunshine in August
Grimes, CA
- Average daylight in August: 13h and 4min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in August: 11h and 5min
The month with the most sunshine is July (Average sunshine: 12h and 12min).
The month with the least sunshine is December (Average sunshine: 5h and 48min).
Average sunshine days in August
Grimes, CA
- Average sunshine days in August: 29.4 days
The month with the most sunshine days is July (29.7 days).
The month with the least sunshine days is March (16.2 days).
Average UV index in August
Grimes, CA
- Average UV index in August: 6
The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover in August
Grimes, CA
- Average cloud cover in August: 5
The month with the most cloud cover is March (Cloud cover 37).
The month with the least cloud cover is July (Cloud cover 4).
Average visibility in August
Grimes, 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).
Grimes, California, USA
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