June weather forecast
Calistoga, CA

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Vineyard and tree lines in a plantation in the Napa Valley in Calistoga, California
Vineyard and tree lines in a plantation in the Napa Valley in Calistoga, California

Weather in June

June, the first month of the summer in Calistoga, is also a moderately hot month, with an average temperature ranging between min 53.1°F (11.7°C) and max 83.1°F (28.4°C).

Temperature

As Calistoga enters June, the average high-temperature increases from the a warm 73.4°F (23°C) of May to a still moderately hot 83.1°F (28.4°C). Calistoga anticipates a considerable drop in temperature at night in June, with an average low of 53.1°F (11.7°C).

Heat index

The heat index value during June is appraised at a tropical 86°F (30°C). Persisting in activity during exposure could lead to weariness and subsequently to heat cramps.
Be advised, the heat index considers values for conditions in shade and with a light breeze. Exposure to unobstructed sunshine could lead to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', binds temperature metrics with humidity values to give a sense of the actual warmth. One's weather perception can be influenced by a range of factors including metabolic differences, being pregnant, and their level of physical activity. It is essential to be conscious of the fact that direct sunlight can intensify the felt heat, leading to an elevation in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Kids often lack the knowledge about the necessity to take breaks and consume liquids. Thirst, as a late symptom of dehydration, necessitates the maintenance of hydration, particularly during enduring physical activities.

Humidity

In June, the average relative humidity is 56%.

Rainfall

In Calistoga, in June, it is raining for 2.3 days, with typically 0.16" (4mm) of accumulated precipitation. In Calistoga, California, during the entire year, the rain falls for 77 days and collects up to 17.05" (433mm) of precipitation.

Snowfall

January, March through December are months without snowfall.

Daylight

With an average of 14h and 48min of daylight, June has the longest days of the year.
On the first day of the month, sunrise is at 5:47 am and sunset at 8:29 pm. On the last day of June, in Calistoga, sunrise is at 5:49 am and sunset at 8:38 pm PDT.

Sunshine

In June, the average sunshine is 11.6h.

UV index

The months with the highest UV index are June through August, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for the average person.
Note: The maximum UV index of 6 during June leads to these instructions:
Dodge overexposure. Fair-skinned people can get singed in less than 20 minutes. Stay in the shade and limit direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is particularly strong. Remember, however, that shade structures may not provide complete protection. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.
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Frequently asked questions

How hot is June in Calistoga?

Calistoga in June has an average high-temperature of 83.1°F (28.4°C) and an average low-temperature of 53.1°F (11.7°C). In June, the average heat index (a.k.a. 'real feel', 'feels like'), which factors the actual air temperature with the relative humidity, is appraised at 86°F (30°C).

What is the average humidity in June in Calistoga?

The average relative humidity in June in Calistoga, California, is 56%.

How many days does it rain in June in Calistoga?

In Calistoga, California, in June, it is raining for 2.3 days, with typically 0.16" (4mm) of accumulated precipitation.

When it does not snow in Calistoga?

January, March through December are months without snowfall.

When are the longest days in Calistoga?

The month with the longest days in Calistoga, California, is June, with an average of 14h and 48min of daylight.

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

The average day length in June in Calistoga, California, is 14h and 49min.

What time are sunrise and sunset in June in Calistoga?

In June, on the first day of the month, sunrise is at 5:47 am and sunset at 8:29 pm. On the last day of the month, sunrise is at 5:49 am and sunset at 8:38 pm PDT.

How many hours of sunshine does Calistoga have in June?

In June, the average sunshine duration is 11.6h.

When is the highest UV index in Calistoga?

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 Calistoga?

The average daily maximum UV index in June in Calistoga, California, is 6. A UV Index value of 6 to 7 symbolizes a high health risk from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in June
Calistoga, CA

Average temperature in June - Calistoga, CA
  • Average high temperature in June: 83.1°F

The warmest month (with the highest average high temperature) is August (87.8°F).
The month with the lowest average high temperature is December (54.7°F).

  • Average low temperature in June: 53.1°F

The month with the highest average low temperature is July (55.4°F).
The coldest month (with the lowest average low temperature) is December (39.4°F).

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Average pressure in June
Calistoga, CA

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

The month with the highest atmospheric pressure is January (30.13"Hg).
The months with the lowest atmospheric pressure are June, August and September (29.91"Hg).

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Average wind speed in June
Calistoga, CA

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

The windiest months (with the highest average wind speed) are April and May (5.7mph).
The calmest month (with the lowest average wind speed) is November (4.3mph).

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Average humidity in June
Calistoga, CA

Average humidity in June - Calistoga, CA
  • Average humidity in June: 56%

The month with the highest relative humidity is March (75%).
The month with the lowest relative humidity is September (53%).

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Average rainfall in June
Calistoga, CA

Average rainfall in June - Calistoga, CA
  • Average rainfall in June: 0.16"

The wettest month (with the highest rainfall) is February (3.78").
The driest months (with the least rainfall) are July and August (0.04").

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Average rainfall days in June
Calistoga, CA

Average rainfall days in June - Calistoga, CA
  • Average rainfall days in June: 2.3 days

The month with the highest number of rainy days is March (13.6 days).
The month with the least rainy days is August (0.8 days).

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Average snowfall in June
Calistoga, CA

Average snowfall in June - Calistoga, CA
  • Average snowfall in June: 0"

The month with the highest snowfall is February (0.04").
The months with the least snowfall are January, March, April, May, June, July, August, September, October, November and December (0").

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Average snowfall days in June
Calistoga, CA

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

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

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

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

The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).

  • Average sunshine in June: 11h and 4min

The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 30min).

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Average sunshine days in June
Calistoga, CA

Average sunshine days in June - Calistoga, CA
  • Average sunshine days in June: 26.8 days

The month with the most sunshine days is July (29.8 days).
The month with the least sunshine days is March (15.8 days).

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Average UV index in June
Calistoga, CA

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

The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 2).

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Average cloud cover in June
Calistoga, CA

Average cloud cover in June - Calistoga, CA
  • Average cloud cover in June: 13

The month with the most cloud cover is March (Cloud cover 42).
The month with the least cloud cover is July (Cloud cover 5).

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Average visibility in June
Calistoga, CA

Average visibility in June - Calistoga, CA
  • Average visibility in June: 6mi

The months with the highest visibility are January, February, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is March (5mi).

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Calistoga, California, USA

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