May weather forecast
Riverkern, CA

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Weather in May

May, the last month of the spring in Riverkern, is a refreshing month, with an average temperature fluctuating between 67.8°F (19.9°C) and 44.6°F (7°C).

Temperature

May introduces a minor temperature shift, with average high-temperatures adjusting from April's 60.4°F (15.8°C) to a still refreshing 67.8°F (19.9°C). May nights indicate a noticeable temperature drop from the daytime highs, with an average reading lowering to a chilly 44.6°F (7°C).

Humidity

The average relative humidity in May in Riverkern, California, is 47%.

Rainfall

In Riverkern, during May, the rain falls for 4.4 days and regularly aggregates up to 0.39" (10mm) of precipitation. Throughout the year, there are 61 rainfall days, and 11.81" (300mm) of precipitation is accumulated.

Snowfall

In Riverkern, snow does not fall in May through October.

Daylight

In May, the average length of the day in Riverkern, California, is 14h and 5min.
On the first day of May, sunrise is at 6:00 am and sunset at 7:41 pm. On the last day of the month, sunrise is at 5:38 am and sunset at 8:04 pm PDT.

Sunshine

In May, the average sunshine is 11.6h.

UV index

The average daily maximum UV index in May is 5. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for the average person.
Note: The daily maximum UV index of 5 in May interprets into the following advice:
Be cautious. Those with fair skin can be subjected to burns in fewer than 30 minutes. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.
Updated: Feb 10, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for Riverkern in May?

In May, the average high-temperature and low-temperature are 67.8°F (19.9°C) and 44.6°F (7°C) respectively.

What is the average humidity in May in Riverkern?

The average relative humidity in May is 47%.

How many days does it rain in May in Riverkern?

In May, in Riverkern, California, the rain falls for 4.4 days. Throughout May, 0.39" (10mm) of precipitation is accumulated.

When it does not snow in Riverkern?

May through October are months without snowfall.

Does it snow in Riverkern in May?

In May, in Riverkern, California, it doesn't snow. April is the latest month when it typically snows.

How many hours of daylight does Riverkern have in May?

In Riverkern, the average day length in May is 14h and 5min.

When are sunrise and sunset in May in Riverkern?

On the first day of May, sunrise is at 6:00 am and sunset at 7:41 pm. On the last day of the month, sunrise is at 5:38 am and sunset at 8:04 pm PDT.

How long on average sun shines in May in Riverkern?

In Riverkern, the average sunshine duration in May is 11.6h.

What is the UV index reading in May in Riverkern?

In Riverkern, California, the average daily maximum UV index in May is 5. A UV Index estimate of 3 to 5 represents a medium hazard to health from exposure to the Sun's 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 May
Riverkern, CA

Average temperature in May - Riverkern, CA
  • Average high temperature in May: 67.8°F

The warmest month (with the highest average high temperature) is July (85.8°F).
The month with the lowest average high temperature is December (48.7°F).

  • Average low temperature in May: 44.6°F

The month with the highest average low temperature is July (58.6°F).
The coldest month (with the lowest average low temperature) is December (30.9°F).

Average pressure in May
Riverkern, CA

Average pressure in May - Riverkern, CA
  • Average pressure in May: 29.89"Hg

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).

Average wind speed in May
Riverkern, CA

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

The windiest months (with the highest average wind speed) are May and June (7.3mph).
The calmest months (with the lowest average wind speed) are January and September (5.4mph).

Average humidity in May
Riverkern, CA

Average humidity in May - Riverkern, CA
  • Average humidity in May: 47%

The month with the highest relative humidity is February (59%).
The month with the lowest relative humidity is August (31%).

Average rainfall in May
Riverkern, CA

Average rainfall in May - Riverkern, CA
  • Average rainfall in May: 0.39"

The wettest month (with the highest rainfall) is January (2.48").
The driest month (with the least rainfall) is June (0.08").

Average rainfall days in May
Riverkern, CA

Average rainfall days in May - Riverkern, CA
  • Average rainfall days in May: 4.4 days

The month with the highest number of rainy days is March (10.3 days).
The month with the least rainy days is June (1.3 days).

Average snowfall in May
Riverkern, CA

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

The month with the highest snowfall is February (3.15").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in May
Riverkern, CA

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

The month with the highest number of snowfall days is February (2.7 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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

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

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 4min

The months with the most sunshine are June and July (Average sunshine: 12h and 6min).
The months with the least sunshine are January, February and December (Average sunshine: 6h and 42min).

Average sunshine days in May
Riverkern, CA

Average sunshine days in May - Riverkern, CA
  • Average sunshine days in May: 25.9 days

The month with the most sunshine days is June (28.3 days).
The month with the least sunshine days is February (19 days).

Average UV index in May
Riverkern, CA

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

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

Average cloud cover in May
Riverkern, CA

Average cloud cover in May - Riverkern, CA
  • Average cloud cover in May: 14

The month with the most cloud cover is March (Cloud cover 26).
The months with the least cloud cover are August and September (Cloud cover 5).

Average visibility in May
Riverkern, CA

Average visibility in May - Riverkern, 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).

Riverkern, California, USA

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