May weather forecast
Halcyon, CA

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Weather in May

The last month of the spring, May, is an agreeable month in Halcyon, California, with an average temperature ranging between min 51.4°F (10.8°C) and max 70.5°F (21.4°C).

Temperature

May's arrival registers an average high-temperature of an agreeable 70.5°F (21.4°C), closely aligning with the temperature of the previous month. Throughout May, Halcyon registers a consistent average low-temperature of 51.4°F (10.8°C).

Humidity

In Halcyon, California, the average relative humidity in May is 65%.

Rainfall

In Halcyon, during May, the rain falls for 3 days and regularly aggregates up to 0.16" (4mm) of precipitation. Throughout the year, in Halcyon, there are 47.6 rainfall days, and 6.93" (176mm) of precipitation is accumulated.

Daylight

The average length of the day in May in Halcyon is 14h and 1min.
On the first day of May, sunrise is at 6:10 am and sunset at 7:48 pm. On the last day of the month, sunrise is at 5:49 am and sunset at 8:11 pm PDT.

Sunshine

In May, the average sunshine is 11.4h.

UV index

The average daily maximum UV index in May in Halcyon is 5. A UV Index estimate of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for ordinary individuals.
Note: During May, 5 as the daily maximum UV index converts into the following advice:
Act with care - Obligation to protect against skin and eye damage is highlighted. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. Always opt for UVA and UVB-resistant sunglasses on radiant days.
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Frequently asked questions

What is the usual temperature for Halcyon in May?

In May, in Halcyon, the average high-temperature is 70.5°F (21.4°C), and the average low-temperature is 51.4°F (10.8°C).

What is the average humidity in May in Halcyon?

In Halcyon, California, the average relative humidity in May is 65%.

How many days does it rain in May in Halcyon?

In Halcyon, California, during May, the rain falls for 3 days and regularly aggregates up to 0.16" (4mm) of precipitation.

What is the average length of the day in May in Halcyon?

The average day length in May is 14h and 1min.

When are sunrise and sunset in May in Halcyon?

On the first day of May, sunrise is at 6:10 am and sunset at 7:48 pm. On the last day of the month, sunrise is at 5:49 am and sunset at 8:11 pm PDT.

How long on average sun shines in May in Halcyon?

The average sunshine duration in May is 11.4h.

What is the UV index reading in May in Halcyon?

In Halcyon, California, the average daily maximum UV index in May is 5. A UV Index estimate of 3 to 5 represents a moderate vulnerability from unprotected exposure to 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 May
Halcyon, CA

Average temperature in May - Halcyon, CA
  • Average high temperature in May: 70.5°F

The warmest month (with the highest average high temperature) is September (79.5°F).
The month with the lowest average high temperature is December (61.2°F).

  • Average low temperature in May: 51.4°F

The month with the highest average low temperature is September (59.9°F).
The coldest month (with the lowest average low temperature) is February (46°F).

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Average pressure in May
Halcyon, CA

Average pressure in May - Halcyon, CA
  • Average pressure in May: 29.97"Hg

The month with the highest atmospheric pressure is January (30.12"Hg).
The months with the lowest atmospheric pressure are June, August and September (29.91"Hg).

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Average wind speed in May
Halcyon, CA

Average wind speed in May - Halcyon, CA
  • Average wind speed in May: 7.3mph

The windiest months (with the highest average wind speed) are April and May (7.3mph).
The calmest month (with the lowest average wind speed) is August (5.7mph).

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Average humidity in May
Halcyon, CA

Average humidity in May - Halcyon, CA
  • Average humidity in May: 65%

The month with the highest relative humidity is March (68%).
The month with the lowest relative humidity is October (58%).

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Average rainfall in May
Halcyon, CA

Average rainfall in May - Halcyon, CA
  • Average rainfall in May: 0.16"

The wettest month (with the highest rainfall) is March (1.61").
The driest months (with the least rainfall) are June and August (0.04").

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Average rainfall days in May
Halcyon, CA

Average rainfall days in May - Halcyon, CA
  • Average rainfall days in May: 3 days

The month with the highest number of rainy days is March (8.4 days).
The month with the least rainy days is August (0.8 days).

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

Average daylight in May / Average sunshine in May - Halcyon, CA
  • Average daylight in May: 14h and 0min

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

  • Average sunshine in May: 11h and 2min

The months with the most sunshine are June, July and August (Average sunshine: 12h and 0min).
The months with the least sunshine are February and December (Average sunshine: 6h and 30min).

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Average sunshine days in May
Halcyon, CA

Average sunshine days in May - Halcyon, CA
  • Average sunshine days in May: 27.2 days

The month with the most sunshine days is August (29.6 days).
The month with the least sunshine days is February (21 days).

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Average UV index in May
Halcyon, CA

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

The months with the highest UV index are June and August (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 4).

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Average cloud cover in May
Halcyon, CA

Average cloud cover in May - Halcyon, CA
  • Average cloud cover in May: 16

The month with the most cloud cover is March (Cloud cover 27).
The month with the least cloud cover is August (Cloud cover 6).

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Average visibility in May
Halcyon, CA

Average visibility in May - Halcyon, 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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Halcyon, California, USA

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