June weather forecast
Byron, CA

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Weather in June

June, the first month of the summer in Byron, is also a moderately hot month, with an average temperature ranging between min 55°F (12.8°C) and max 84.4°F (29.1°C).

Temperature

The start of June brings a subtle shift in the average high-temperature, edging up from May's 75.6°F (24.2°C) to a still moderately hot 84.4°F (29.1°C). In Byron, June nights witness a remarkable decline from the day's zenith to a cool 55°F (12.8°C).

Heat index

The heat index in June is calculated to be a tropical 86°F (30°C). Remaining active during long-lasting exposure could cause fatigue, leading to heat cramps.
The standards for the heat index are set for locations in shade and under light breezes. Direct sunlight can potentially boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', combines both the air temperature and the humidity level to give a perceived human temperature. The individual's experience of temperature can be shaped by numerous aspects such as metabolic variations, physical exertion, and attire. Take note that direct exposure to the sun can increase the felt temperature, possibly adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are quite important for children. Young kids are often more at risk than adults as they tend to perspire less. Besides, their skin surface is larger relative to their small bodies, and their increased heat output from their active lifestyle compounds their risk.

Humidity

In Byron, the average relative humidity in June is 53%.

Rainfall

In Byron, in June, during 1.3 rainfall days, 0.08" (2mm) of precipitation is typically accumulated. Throughout the year, there are 62 rainfall days, and 10.16" (258mm) of precipitation is accumulated.

Snowfall

January through November are months without snowfall.

Daylight

June has the longest days of the year, with an average of 14h and 42min of daylight.
On the first day of the month, sunrise is at 5:45 am and sunset at 8:23 pm. On the last day of June, sunrise is at 5:48 am and sunset at 8:32 pm PDT.

Sunshine

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

UV index

June through August, with an average maximum UV index of 6, are months with the highest UV index in Byron. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to UV radiation for the ordinary person.
Note: A daily maximum UV index of 6 in June translates into the following instructions:
Employ safeguards and advocate sun safety protocols. Shielding against skin and eye damage is crucial. Be aware that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. and try to reduce direct sun exposure during this period as much as possible. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes.

Frequently asked questions

How hot is June?

The average high-temperature and low-temperature during June are 84.4°F (29.1°C) and 55°F (12.8°C) respectively. The average heat index (a.k.a. 'felt air temperature', 'feels like'), which factors the actual air temperature with the relative humidity, in June is calculated to be 86°F (30°C).

What is the average humidity in June?

In Byron, the average relative humidity in June is 53%.

How much does it rain in June?

In Byron, during June, the rain falls for 1.3 days and regularly aggregates up to 0.08" (2mm) of precipitation.

When it does not snow?

January through November are months without snowfall in Byron.

When are the longest days?

With an average of 14h and 42min of daylight, June has the longest days of the year.

What is the average length of the day in June in Byron?

In June, the average day length in Byron is 14h and 45min.

When are sunrise and sunset in June?

On the first day of June, sunrise is at 5:45 am and sunset at 8:23 pm. On the last day of the month, sunrise is at 5:48 am and sunset at 8:32 pm PDT.

How many hours of sunshine does Byron have in June?

In June, the average sunshine duration is 11.8h.

What is the month with the highest UV index?

The months with the highest UV index are June through August, with an average maximum UV index of 6.

What is the UV index intensity in June?

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

Average temperature in June
Byron, CA

Average temperature in June - Byron, CA
  • Average high temperature in June: 84.4°F

The warmest month (with the highest average high temperature) is July (88.5°F).
The month with the lowest average high temperature is December (55°F).

  • Average low temperature in June: 55°F

The month with the highest average low temperature is September (57.7°F).
The coldest month (with the lowest average low temperature) is January (41.5°F).

Average pressure in June
Byron, CA

Average pressure in June - Byron, CA
  • Average pressure in June: 29.91"Hg

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

Average wind speed in June
Byron, CA

Average wind speed in June - Byron, CA
  • Average wind speed in June: 7.8mph

The windiest month (with the highest average wind speed) is June (7.8mph).
The calmest months (with the lowest average wind speed) are January and November (4.5mph).

Average humidity in June
Byron, CA

Average humidity in June - Byron, CA
  • Average humidity in June: 53%

The month with the highest relative humidity is January (74%).
The month with the lowest relative humidity is September (52%).

Average rainfall in June
Byron, CA

Average rainfall in June - Byron, CA
  • Average rainfall in June: 0.08"

The wettest month (with the highest rainfall) is February (2.09").
The driest months (with the least rainfall) are July and August (0.04").

Average rainfall days in June
Byron, CA

Average rainfall days in June - Byron, CA
  • Average rainfall days in June: 1.3 days

The month with the highest number of rainy days is March (12.3 days).
The month with the least rainy days is August (0.8 days).

Average snowfall days in June
Byron, CA

Average snowfall days in June - Byron, CA
  • Average snowfall days in June: 0 days

The month with the highest number of snowfall days is December (0.1 days).
The months with the least snowfall days are January, February, March, April, May, June, July, August, September, October and November (0 days).

Average daylight in June /
Average sunshine in June
Byron, CA

Average daylight in June / Average sunshine in June - Byron, CA
  • Average daylight in June: 14h and 4min

The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).

  • Average sunshine in June: 11h and 5min

The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 48min).

Average sunshine days in June
Byron, CA

Average sunshine days in June - Byron, CA
  • Average sunshine days in June: 28.5 days

The month with the most sunshine days is August (29.8 days).
The month with the least sunshine days is March (17.7 days).

Average UV index in June
Byron, CA

Average UV index in June - Byron, CA
  • Average UV index in June: 6

The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 3).

Average cloud cover in June
Byron, CA

Average cloud cover in June - Byron, CA
  • Average cloud cover in June: 11

The months with the most cloud cover are March and December (Cloud cover 35).
The month with the least cloud cover is July (Cloud cover 5).

Average visibility in June
Byron, CA

Average visibility in June - Byron, 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).

Byron, California, USA

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