May weather forecast
Sierra Heights, CA

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Weather in May

May, the last month of the spring in Sierra Heights, is a warm month, with an average temperature varying between 76.6°F (24.8°C) and 54°F (12.2°C).

Temperature

Transitioning into May, Sierra Heights experiences an average high-temperature of a warm 76.6°F (24.8°C), marking a minor shift from the preceding month. Sierra Heights's average low-temperature of 54°F (12.2°C) in May reflects a significant disparity from the daytime highs.

Humidity

February, March and May, with an average relative humidity of 52%, are the most humid months.

Rainfall

In Sierra Heights, during May, the rain falls for 3.6 days and regularly aggregates up to 0.2" (5mm) of precipitation. In Sierra Heights, during the entire year, the rain falls for 48.1 days and collects up to 6.89" (175mm) of precipitation.

Snowfall

January, March through December are months without snowfall.

Daylight

The average length of the day in May is 13h and 58min.
On the first day of the month, sunrise is at 5:59 am and sunset at 7:34 pm. On the last day of May, sunrise is at 5:39 am and sunset at 7:56 pm PDT.

Sunshine

The average sunshine in May is 11.8h.

UV index

In May, the average daily maximum UV index is 6. A UV Index of 6 to 7 symbolizes a high threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: In May, the UV index of 6 transforms into the following advice:
Inhibit overexposure. Warding off sun damage is of utmost importance. The Sun emits the most powerful UV radiation between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.
Updated: Jun 26, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in May?

In Sierra Heights, in May, the average high-temperature is 76.6°F (24.8°C), and the average low-temperature is 54°F (12.2°C).

What is the most humid month?

The months with the highest humidity are February, March and May, with an average relative humidity of 52%.

What is the average humidity in May?

The average relative humidity in May is 52%.

How many days does it rain in May?

In May, in Sierra Heights, the rain falls for 3.6 days. Throughout May, 0.2" (5mm) of precipitation is accumulated.

When it does not snow?

January, March through December are months without snowfall.

How many hours of daylight does Sierra Heights have in May?

In May, the average day length is 13h and 58min.

When are sunrise and sunset in May?

In May, on the first day of the month, sunrise is at 5:59 am and sunset at 7:34 pm. On the last day of the month, sunrise is at 5:39 am and sunset at 7:56 pm PDT.

How long on average sun shines in May?

In Sierra Heights, the average sunshine duration in May is 11.8h.

How high is the UV index in May?

In May, the average daily maximum UV index is 6. A UV Index of 6 to 7 symbolizes a high health risk from unsafe exposure to Sun's UV rays.
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 May
Sierra Heights, CA

Average temperature in May - Sierra Heights, CA
  • Average high temperature in May: 76.6°F

The warmest month (with the highest average high temperature) is August (92.1°F).
The month with the lowest average high temperature is December (60.8°F).

  • Average low temperature in May: 54°F

The month with the highest average low temperature is August (67.3°F).
The coldest months (with the lowest average low temperature) are February and December (44.2°F).

Average pressure in May
Sierra Heights, CA

Average pressure in May - Sierra Heights, CA
  • Average pressure in May: 29.9"Hg

The month with the highest atmospheric pressure is January (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).

Average wind speed in May
Sierra Heights, CA

Average wind speed in May - Sierra Heights, CA
  • Average wind speed in May: 6mph

The windiest months (with the highest average wind speed) are April and May (6mph).
The calmest month (with the lowest average wind speed) is September (4.5mph).

Average humidity in May
Sierra Heights, CA

Average humidity in May - Sierra Heights, CA
  • Average humidity in May: 52%

The months with the highest relative humidity are February, March and May (52%).
The month with the lowest relative humidity is August (39%).

Average rainfall in May
Sierra Heights, CA

Average rainfall in May - Sierra Heights, CA
  • Average rainfall in May: 0.2"

The wettest month (with the highest rainfall) is February (1.57").
The driest month (with the least rainfall) is June (0.04").

Average rainfall days in May
Sierra Heights, CA

Average rainfall days in May - Sierra Heights, CA
  • Average rainfall days in May: 3.6 days

The month with the highest number of rainy days is March (7.5 days).
The month with the least rainy days is June (1.2 days).

Average snowfall days in May
Sierra Heights, CA

Average snowfall days in May - Sierra Heights, CA
  • Average snowfall days in May: 0 days

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

Average daylight in May /
Average sunshine in May
Sierra Heights, CA

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

The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).

  • Average sunshine in May: 11h and 5min

The months with the most sunshine are June, July and August (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 6h and 54min).

Average sunshine days in May
Sierra Heights, CA

Average sunshine days in May - Sierra Heights, CA
  • Average sunshine days in May: 26.3 days

The month with the most sunshine days is June (28.3 days).
The month with the least sunshine days is February (21.1 days).

Average UV index in May
Sierra Heights, CA

Average UV index in May - Sierra Heights, CA
  • Average UV index in May: 6

The months with the highest UV index are July and August (UV index 7).
The month with the lowest UV index is December (UV index 3).

Average cloud cover in May
Sierra Heights, CA

Average cloud cover in May - Sierra Heights, CA
  • Average cloud cover in May: 12

The months with the most cloud cover are February, March and December (Cloud cover 21).
The month with the least cloud cover is August (Cloud cover 4).

Average visibility in May
Sierra Heights, CA

Average visibility in May - Sierra Heights, 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).

Sierra Heights, California, USA

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