Contents
- Weather in June
- Frequently asked questions
- Average temperature in June
- Average pressure in June
- Average wind speed in June
- Average humidity in June
- Average rainfall in June
- Average rainfall days in June
- Average snowfall days in June
- Average daylight in June
- Average sunshine in June
- Average sunshine days in June
- Average UV index in June
- Average cloud cover in June
- Average visibility in June
Weather in June
Temperature
June's onset brings a subtle temperature rise, moving from 76.5°F (24.7°C) in May to a still warm 85.1°F (29.5°C). A sharp divergence from daytime highs is noted during the month of June, with the average nighttime temperature settling at a refreshing 58.5°F (14.7°C).Heat index
June's heat index is calculated to be a hot 86°F (30°C). One might feel worn out with persistent exposure and activity, resulting in heat cramps.It is emphasized that the heat index's values are meant for shaded zones with mild winds. Direct sunlight might lead to a heat index increase by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is found by incorporating humidity levels into the air temperature measurement. Elements such as metabolic variations, pregnancy, and physical exertion can shape one's weather perception. In the direct sunlight, the weather's impact can be amplified, possibly boosting the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Youngsters generally face more threats than adults given their lesser ability to sweat. Coupled with their larger skin surface relative to their small bodies and higher heat production due to their activities, they are more endangered.
Humidity
The average relative humidity in June is 46%.Rainfall
The month with the least rainfall is June, when the rain falls for 1.2 days and typically collects 0.04" (1mm) of precipitation.Snowfall
January, March through December are months without snowfall.Daylight
The month with the longest days is June, with an average of 14h and 24min of daylight.On the first day of the month, sunrise is at 5:38 am and sunset at 7:55 pm. On the last day of June, in Grand Terrace, sunrise is at 5:41 am and sunset at 8:04 pm PDT.
Sunshine
In June, the average sunshine is 12.1h.UV index
The months with the highest UV index are June through August, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health hazard from unsafe exposure to UV radiation for the ordinary person.Note: The UV index of 7 during June translates into the following guidance:
Shun overexposure. Protection from sun ravages is indispensable. Stay in the shade and limit sun exposure from 10 a.m. to 4 p.m., when UV radiation is most potent. Keep in mind that shade structures like parasols or canopies do not offer full protection. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot does it get in June?
What is the average humidity in June?
What is the driest month?
How many days does it rain in June?
When it does not snow?
When are the longest days?
How many hours of daylight does Grand Terrace have in June?
When are sunrise and sunset in June?
How long on average sun shines in June in Grand Terrace?
What is the month with the highest UV index in Grand Terrace?
How high is the UV index in June?
Average temperature in June
Grand Terrace, CA
- Average high temperature in June: 85.1°F
The warmest month (with the highest average high temperature) is August (91.9°F).
The month with the lowest average high temperature is December (59.9°F).
- Average low temperature in June: 58.5°F
The month with the highest average low temperature is August (65.8°F).
The coldest month (with the lowest average low temperature) is February (43.5°F).
Average pressure in June
Grand Terrace, CA
- Average pressure in June: 29.85"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).
Average wind speed in June
Grand Terrace, CA
- Average wind speed in June: 5.5mph
The windiest months (with the highest average wind speed) are April and May (6mph).
The calmest month (with the lowest average wind speed) is September (4.5mph).
Average humidity in June
Grand Terrace, CA
- Average humidity in June: 46%
The month with the highest relative humidity is February (53%).
The month with the lowest relative humidity is August (38%).
Average rainfall in June
Grand Terrace, CA
- Average rainfall in June: 0.04"
The wettest month (with the highest rainfall) is December (1.42").
The driest month (with the least rainfall) is June (0.04").
Average rainfall days in June
Grand Terrace, CA
- Average rainfall days in June: 1.2 days
The month with the highest number of rainy days is March (6.7 days).
The month with the least rainy days is June (1.2 days).
Average snowfall days in June
Grand Terrace, CA
- Average snowfall days in June: 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 June /
Average sunshine in June
Grand Terrace, CA
- Average daylight in June: 14h 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 June: 12h 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: 6h and 54min).
Average sunshine days in June
Grand Terrace, CA
- Average sunshine days in June: 27.9 days
The months with the most sunshine days are June and October (27.9 days).
The month with the least sunshine days is February (21.7 days).
Average UV index in June
Grand Terrace, CA
- Average UV index in June: 7
The months with the highest UV index are June, July and August (UV index 7).
The month with the lowest UV index is December (UV index 3).
Average cloud cover in June
Grand Terrace, CA
- Average cloud cover in June: 6
The months with the most cloud cover are February and December (Cloud cover 21).
The month with the least cloud cover is August (Cloud cover 5).
Average visibility in June
Grand Terrace, 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).
Grand Terrace, California, USA
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