May weather forecast
Asti, CA

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Weather in May

The last month of the spring, May, is an agreeable month in Asti, California, with an average temperature ranging between min 46°F (7.8°C) and max 70.9°F (21.6°C).

Temperature

Asti's weather in May shows a minor rise in the average high-temperature, moving slightly up from April's comfortable 65.1°F (18.4°C) to a pleasant 70.9°F (21.6°C). Despite the intense daytime heat, Asti sustains a steady low-temperature average of 46°F (7.8°C) during May.

Humidity

In May, the average relative humidity in Asti, California, is 67%.

Rainfall

In May, in Asti, the rain falls for 5.5 days. Throughout May, 1.06" (27mm) of precipitation is accumulated. Throughout the year, in Asti, there are 82.4 rainfall days, and 20.75" (527mm) of precipitation is accumulated.

Snowfall

January, March through December are months without snowfall in Asti.

Daylight

In May, the average length of the day in Asti, California, is 14h and 19min.
On the first day of May in Asti, California, sunrise is at 6:13 am and sunset at 8:04 pm. On the last day of the month, sunrise is at 5:48 am and sunset at 8:30 pm PDT.

Sunshine

In May, the average sunshine in Asti is 10.6h.

UV index

In May, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for average individuals.
Note: In May, the maximum UV index of 5 transforms into these recommendations:
Guard yourself - An obligation to protect skin and eyes from harm exists. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. During bright days, sunglasses that offer UVA and UVB defense are recommended.
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Frequently asked questions

What are the temperatures in Asti in May?

In May, in Asti, the average high-temperature is 70.9°F (21.6°C), and the average low-temperature is 46°F (7.8°C).

What is the average humidity in May in Asti?

In May, the average relative humidity in Asti is 67%.

How many days does it rain in May in Asti?

In Asti, California, during May, the rain falls for 5.5 days and regularly aggregates up to 1.06" (27mm) of precipitation.

When it does not snow in Asti?

In Asti, California, snow does not fall in January, March through December.

How many hours of daylight does Asti have in May?

In May, the average day length in Asti is 14h and 19min.

When are sunrise and sunset in May in Asti?

On the first day of May, sunrise is at 6:13 am and sunset at 8:04 pm. On the last day of the month, sunrise is at 5:48 am and sunset at 8:30 pm PDT.

How many hours of sunshine does Asti have in May?

The average sunshine duration in May is 10.6h.

What is the UV index reading in May in Asti?

In Asti, the average daily maximum UV index in May is 5. A UV Index value of 3 to 5 symbolizes a medium health risk from unsafe exposure to Sun's UV rays.
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 May
Asti, CA

Average temperature in May - Asti, CA
  • Average high temperature in May: 70.9°F

The warmest month (with the highest average high temperature) is July (86.2°F).
The month with the lowest average high temperature is December (54.9°F).

  • Average low temperature in May: 46°F

The month with the highest average low temperature is August (54.1°F).
The coldest month (with the lowest average low temperature) is December (38.5°F).

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Average pressure in May
Asti, CA

Average pressure in May - Asti, CA
  • Average pressure in May: 29.97"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 (29.92"Hg).

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Average wind speed in May
Asti, CA

Average wind speed in May - Asti, CA
  • Average wind speed in May: 6.3mph

The windiest month (with the highest average wind speed) is May (6.3mph).
The calmest month (with the lowest average wind speed) is November (4.6mph).

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Average humidity in May
Asti, CA

Average humidity in May - Asti, CA
  • Average humidity in May: 67%

The month with the highest relative humidity is March (77%).
The months with the lowest relative humidity are July and September (57%).

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Average rainfall in May
Asti, CA

Average rainfall in May - Asti, CA
  • Average rainfall in May: 1.06"

The wettest month (with the highest rainfall) is February (4.25").
The driest months (with the least rainfall) are July and August (0.04").

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Average rainfall days in May
Asti, CA

Average rainfall days in May - Asti, CA
  • Average rainfall days in May: 5.5 days

The month with the highest number of rainy days is March (14.6 days).
The months with the least rainy days are July and August (1.2 days).

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Average snowfall in May
Asti, CA

Average snowfall in May - Asti, CA
  • Average snowfall in May: 0"

The month with the highest snowfall is February (0.16").
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 May
Asti, CA

Average snowfall days in May - Asti, CA
  • Average snowfall days in May: 0 days

The month with the highest number of snowfall days is February (0.2 days).
The months with the least snowfall days are January, March, April, May, June, July, August, September, October, November and December (0 days).

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Average daylight in May /
Average sunshine in May
Asti, CA

Average daylight in May / Average sunshine in May - Asti, CA
  • Average daylight in May: 14h and 2min

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 May: 10h 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 24min).

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Average sunshine days in May
Asti, CA

Average sunshine days in May - Asti, CA
  • Average sunshine days in May: 23.8 days

The month with the most sunshine days is July (29.4 days).
The month with the least sunshine days is March (15.2 days).

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Average UV index in May
Asti, CA

Average UV index in May - Asti, CA
  • Average UV index in May: 5

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

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Average cloud cover in May
Asti, CA

Average cloud cover in May - Asti, CA
  • Average cloud cover in May: 27

The month with the most cloud cover is March (Cloud cover 43).
The months with the least cloud cover are July and August (Cloud cover 6).

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Average visibility in May
Asti, CA

Average visibility in May - Asti, CA
  • Average visibility in May: 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).

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Asti, California, USA

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