June weather forecast
Grimes, CA

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Weather in June

The first month of the summer, June, is a hot month in Grimes, California, with an average temperature varying between 59.7°F (15.4°C) and 90°F (32.2°C).

Temperature

June sees a rise in the average high-temperature, climbing from a moderately hot 79.3°F (26.3°C) in May to a tropical 90°F (32.2°C). A noteworthy temperature dip to a mild 59.7°F (15.4°C) is observed during the nights of June.

Heat index

For most parts of June, the heat index is evaluated at a tropical 91.4°F (33°C). Take more preventive steps, risk of heat exhaustion and heat cramps is elevated. Long activity may culminate in heatstroke.
Given the heat index, its values are aligned with shaded sites and gentle winds. The direct sun can potentially cause the heat index to increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is achieved by amalgamating air temperature with the relative humidity readings. One's perception of temperature is subjective, varying based on their activity and individual heat perception, influenced by factors like wind, clothing, and metabolic variations. It is noteworthy to mention that direct sunlight exposure can augment the felt temperature, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. Children often overlook the necessity for resting and fluid replenishment. Thirst is a late sign of dehydration - thus, it is critical to stay hydrated, especially during extended periods of physical activities.

Humidity

In Grimes, California, the average relative humidity in June is 43%.

Rainfall

In Grimes, in June, during 2.2 rainfall days, 0.2" (5mm) of precipitation is typically accumulated. In Grimes, during the entire year, the rain falls for 75.1 days and collects up to 17.09" (434mm) of precipitation.

Daylight

With an average of 14h and 54min of daylight, June has the longest days of the year.
On the first day of the month, sunrise is at 5:43 am and sunset at 8:27 pm. On the last day of June, sunrise is at 5:45 am and sunset at 8:37 pm PDT.

Sunshine

In Grimes, the average sunshine in June is 11.8h.

UV index

June and July, with an average maximum UV index of 7, are months 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 ordinary individuals.
Note: The maximum UV index, 7 during June, leads to the following recommendations:
Prevent overexposure. Protection from the sun's harmful effects is needed. The Sun's UV radiation is at its strongest between the hours of 10 a.m. and 4 p.m. Minimize direct exposure to the sun during this period. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.
Updated: Jun 18, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is it in June?

June temperatures vary between a high-temperature of 90°F (32.2°C) and a low-temperature of 59.7°F (15.4°C). The average heat index (a.k.a. 'feels like', 'felt air temperature'), which calculates the temperature value influenced by the moisture in the air, in June is evaluated at 91.4°F (33°C).

What is the average humidity in June in Grimes?

In June, the average relative humidity in Grimes is 43%.

How much does it rain in June?

In June, in Grimes, the rain falls for 2.2 days. Throughout June, 0.2" (5mm) of precipitation is accumulated.

When are the longest days?

The month with the longest days is June, with an average of 14h and 54min of daylight.

What is the average length of the day in June?

In Grimes, the average day length in June is 14h and 52min.

When is the sunrise / sunset in June in Grimes?

On the first day of June, sunrise is at 5:43 am and sunset at 8:27 pm. On the last day of the month, sunrise is at 5:45 am and sunset at 8:37 pm PDT.

How long on average sun shines in June?

In June, the average sunshine duration is 11.8h.

What are the months with the highest UV index?

The months with the highest UV index are June and July, with an average maximum UV index of 7.

What is the UV index reading in June?

In Grimes, the average daily maximum UV index in June is 7. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in June
Grimes, CA

Average temperature in June - Grimes, CA
  • Average high temperature in June: 90°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 June: 59.7°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 June
Grimes, CA

Average pressure in June - Grimes, CA
  • Average pressure in June: 29.9"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 June
Grimes, CA

Average wind speed in June - Grimes, CA
  • Average wind speed in June: 5.4mph

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 June
Grimes, CA

Average humidity in June - Grimes, CA
  • Average humidity in June: 43%

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 June
Grimes, CA

Average rainfall in June - Grimes, CA
  • Average rainfall in June: 0.2"

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 June
Grimes, CA

Average rainfall days in June - Grimes, CA
  • Average rainfall days in June: 2.2 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 June /
Average sunshine in June
Grimes, CA

Average daylight in June / Average sunshine in June - Grimes, CA
  • Average daylight in June: 14h and 5min

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 June: 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 June
Grimes, CA

Average sunshine days in June - Grimes, CA
  • Average sunshine days in June: 27.4 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 June
Grimes, CA

Average UV index in June - Grimes, CA
  • Average UV index in June: 7

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 June
Grimes, CA

Average cloud cover in June - Grimes, CA
  • Average cloud cover in June: 10

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 June
Grimes, CA

Average visibility in June - Grimes, CA
  • Average visibility in June: 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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