Contents
- Weather in April
- Frequently asked questions
- Average temperature in April
- Average pressure in April
- Average wind speed in April
- Average humidity in April
- Average rainfall in April
- Average rainfall days in April
- Average daylight in April
- Average sunshine in April
- Average sunshine days in April
- Average UV index in April
- Average cloud cover in April
- Average visibility in April
Weather in April
Temperature
The onset of April marks a slight increase in the average high-temperature, moving from an enjoyable 63°F (17.2°C) in March to an agreeable 70.5°F (21.4°C). April nights show a substantial disparity from the daytime peak with an average low-temperature of 48°F (8.9°C).Humidity
In April, the average relative humidity is 64%.Rainfall
In Grimes, California, during April, the rain falls for 8.5 days and regularly aggregates up to 1.14" (29mm) of precipitation. In Grimes, during the entire year, the rain falls for 75.1 days and collects up to 17.09" (434mm) of precipitation.Daylight
The average length of the day in April is 13h and 16min.On the first day of April, sunrise is at 6:50 am and sunset at 7:31 pm. On the last day of the month, sunrise is at 6:09 am and sunset at 8:00 pm PDT.
Sunshine
In Grimes, the average sunshine in April is 10.2h.UV index
In Grimes, California, the average daily maximum UV index in April is 5. A UV Index reading of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for ordinary individuals.Note: A maximum high daily UV index of 5 during April translates into the following directions:
Take care. Persons with lighter skin might suffer burns in less than 30 minutes. It's recommended to limit sun exposure when its radiation is at its peak during midday. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in April?
What is the average humidity in April?
How many days does it rain in April?
What is the average length of the day in April?
What time are sunrise and sunset in April?
How long on average sun shines in April in Grimes?
How high is the UV index in April?
Average temperature in April
Grimes, CA
- Average high temperature in April: 70.5°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 April: 48°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 April
Grimes, CA
- Average pressure in April: 30.01"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 April
Grimes, CA
- Average wind speed in April: 5.8mph
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 April
Grimes, CA
- Average humidity in April: 64%
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 April
Grimes, CA
- Average rainfall in April: 1.14"
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 April
Grimes, CA
- Average rainfall days in April: 8.5 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 April /
Average sunshine in April
Grimes, CA
- Average daylight in April: 13h and 2min
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 April: 10h and 1min
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 April
Grimes, CA
- Average sunshine days in April: 20.3 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 April
Grimes, CA
- Average UV index in April: 5
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 April
Grimes, CA
- Average cloud cover in April: 27
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 April
Grimes, CA
- Average visibility in April: 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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