May weather forecast
Catheys Valley, CA

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Weather in May

The last month of the spring, May, is also a moderately hot month in Catheys Valley, California, with temperature in the range of an average low of 55.2°F (12.9°C) and an average high of 81.5°F (27.5°C).

Temperature

Catheys Valley's May weather indicates a minor ascent in high-temperatures, adjusting from 73.4°F (23°C) in April to a still moderately hot 81.5°F (27.5°C). Catheys Valley, in May, experiences a marked contrast from daytime zeniths to a steady average low-temperature of 55.2°F (12.9°C).

Heat index

May's heat index is evaluated at 82.4°F (28°C). Enduring exposure and unrelenting activity might cause a state of weariness, potentially leading to heat cramps.
Take note of the fact that heat index values are based on shaded circumstances with light airflows. Direct sunlight might cause an increase of up to 15 Fahrenheit (8 Celsius) degrees in the heat index.
Note: The heat index, also known as 'real feel' or 'apparent temperature', joins air temperature with relative humidity to produce a temperature perception for humans. The effect is experienced differently by individuals, hinging on unique characteristics such as body mass, stature, and level of activity. Keep it in mind, direct sunlight can augment the heat you experience, possibly pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Young ones often underestimate the need for rest and rehydration. Thirst appears late in dehydration - hence, it is important to keep hydrated, particularly during prolonged physical activities.

Humidity

In Catheys Valley, the average relative humidity in May is 47%.

Rainfall

In Catheys Valley, in May, during 4.9 rainfall days, 0.75" (19mm) of precipitation is typically accumulated. In Catheys Valley, during the entire year, the rain falls for 62.9 days and collects up to 11.69" (297mm) of precipitation.

Daylight

The average length of the day in May is 14h and 12min.
On the first day of May, sunrise is at 6:04 am and sunset at 7:50 pm. On the last day of the month, sunrise is at 5:41 am and sunset at 8:15 pm PDT.

Sunshine

The average sunshine in May in Catheys Valley is 11.3h.

UV index

In Catheys Valley, the average daily maximum UV index in May is 6. A UV Index reading of 6 to 7 represents a high health risk from unsafe exposure to UV radiation for average individuals.
Note: The maximum UV index, 6 during May, leads to the following recommendations:
Refrain from overexposure. Fair-skinned individuals could burn in under 20 minutes. Try to minimize direct Sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Also note that objects like parasols or canopies might not provide complete sun protection. Experience reduced UV exposure by about half when donning a wide-brim hat.

Frequently asked questions

What is the average May temperature in Catheys Valley?

The average high-temperature, in May, in Catheys Valley, is 81.5°F (27.5°C), while the average low-temperature is 55.2°F (12.9°C). The average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which factors the actual air temperature with the relative humidity, in May is evaluated at 82.4°F (28°C).

What is the average humidity in May in Catheys Valley?

In May, the average relative humidity in Catheys Valley, California, is 47%.

How many days does it rain in May in Catheys Valley?

In Catheys Valley, California, in May, it is raining for 4.9 days, with typically 0.75" (19mm) of accumulated precipitation.

What is the average length of the day in May in Catheys Valley?

In Catheys Valley, the average day length in May is 14h and 12min.

When are sunrise and sunset in May in Catheys Valley?

On the first day of May in Catheys Valley, sunrise is at 6:04 am and sunset at 7:50 pm. On the last day of the month, sunrise is at 5:41 am and sunset at 8:15 pm PDT.

How long on average sun shines in May in Catheys Valley?

In May, the average sunshine duration in Catheys Valley is 11.3h.

What is the UV index intensity in May in Catheys Valley?

In Catheys Valley, the average daily maximum UV index in May is 6. A UV Index of 6 to 7 symbolizes a high health risk 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
Catheys Valley, CA

Average temperature in May - Catheys Valley, CA
  • Average high temperature in May: 81.5°F

The warmest month (with the highest average high temperature) is July (99.1°F).
The month with the lowest average high temperature is December (55.9°F).

  • Average low temperature in May: 55.2°F

The month with the highest average low temperature is July (65.5°F).
The coldest month (with the lowest average low temperature) is December (41.9°F).

Average pressure in May
Catheys Valley, CA

Average pressure in May - Catheys Valley, CA
  • Average pressure in May: 29.96"Hg

The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

Average wind speed in May
Catheys Valley, CA

Average wind speed in May - Catheys Valley, CA
  • Average wind speed in May: 7.6mph

The windiest month (with the highest average wind speed) is June (8.3mph).
The calmest months (with the lowest average wind speed) are January and November (5.2mph).

Average humidity in May
Catheys Valley, CA

Average humidity in May - Catheys Valley, CA
  • Average humidity in May: 47%

The month with the highest relative humidity is January (70%).
The month with the lowest relative humidity is July (32%).

Average rainfall in May
Catheys Valley, CA

Average rainfall in May - Catheys Valley, CA
  • Average rainfall in May: 0.75"

The wettest month (with the highest rainfall) is March (2.44").
The driest month (with the least rainfall) is August (0.04").

Average rainfall days in May
Catheys Valley, CA

Average rainfall days in May - Catheys Valley, CA
  • Average rainfall days in May: 4.9 days

The month with the highest number of rainy days is March (11.3 days).
The month with the least rainy days is June (1.1 days).

Average daylight in May /
Average sunshine in May
Catheys Valley, CA

Average daylight in May / Average sunshine in May - Catheys Valley, CA
  • Average daylight in May: 14h and 1min

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 May: 11h and 2min

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 6min).

Average sunshine days in May
Catheys Valley, CA

Average sunshine days in May - Catheys Valley, CA
  • Average sunshine days in May: 25.4 days

The month with the most sunshine days is August (28.8 days).
The month with the least sunshine days is March (18.8 days).

Average UV index in May
Catheys Valley, CA

Average UV index in May - Catheys Valley, CA
  • Average UV index in May: 6

The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 3).

Average cloud cover in May
Catheys Valley, CA

Average cloud cover in May - Catheys Valley, CA
  • Average cloud cover in May: 17

The month with the most cloud cover is March (Cloud cover 32).
The months with the least cloud cover are July and August (Cloud cover 5).

Average visibility in May
Catheys Valley, CA

Average visibility in May - Catheys Valley, 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).

Catheys Valley, California, USA

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