May weather forecast
Rocklin, CA

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Weather in May

The last month of the spring, May, is a moderately hot month in Rocklin, California, with temperature in the range of an average high of 76.8°F (24.9°C) and an average low of 51.8°F (11°C).

Temperature

May's onset witnesses a minor shift in the average high-temperature, moving from an agreeable 68.5°F (20.3°C) in April to a moderately hot 76.8°F (24.9°C). May's nights exhibit a sharp contrast from day highs, with an average temperature of 51.8°F (11°C).

Humidity

The average relative humidity in May is 57%.

Rainfall

In Rocklin, in May, it is raining for 5.6 days, with typically 0.94" (24mm) of accumulated precipitation. Throughout the year, there are 78.4 rainfall days, and 19.09" (485mm) of precipitation is accumulated.

Snowfall

January through November are months without snowfall.

Daylight

In May, the average length of the day is 14h and 19min.
On the first day of May, sunrise is at 6:06 am and sunset at 7:57 pm. On the last day of the month, sunrise is at 5:41 am and sunset at 8:23 pm PDT.

Sunshine

The average sunshine in May is 11h.

UV index

In Rocklin, the average daily maximum UV index in May is 5. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for the ordinary person.
Note: The daily high UV index of 5 during May translates into the following recommendations:
Put precautions into practice - Protective measures against sun-induced damage are advised. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses.

Frequently asked questions

What are May temperatures?

Rocklin in May has an average high-temperature of 76.8°F (24.9°C) and an average low-temperature of 51.8°F (11°C).

What is the average humidity in May?

In Rocklin, the average relative humidity in May is 57%.

How many days does it rain in May?

In May, the rain falls for 5.6 days. Throughout May, 0.94" (24mm) of precipitation is accumulated.

When it does not snow?

In Rocklin, California, snow does not fall in January through November.

How many hours of daylight does Rocklin have in May?

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

When is the sunrise / sunset in May?

On the first day of May, sunrise is at 6:06 am and sunset at 7:57 pm. On the last day of the month, sunrise is at 5:41 am and sunset at 8:23 pm PDT.

How long on average sun shines in May?

In May, the average sunshine duration is 11h.

How high is the UV index in May?

In Rocklin, the average daily maximum UV index in May is 5. A UV Index of 3 to 5 symbolizes a medium health risk from unprotected exposure to UV radiation.
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
Rocklin, CA

Average temperature in May - Rocklin, CA
  • Average high temperature in May: 76.8°F

The warmest month (with the highest average high temperature) is July (94.1°F).
The month with the lowest average high temperature is December (54.1°F).

  • Average low temperature in May: 51.8°F

The month with the highest average low temperature is July (60.4°F).
The coldest month (with the lowest average low temperature) is December (40.5°F).

Average pressure in May
Rocklin, CA

Average pressure in May - Rocklin, CA
  • Average pressure in May: 29.95"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).

Average wind speed in May
Rocklin, CA

Average wind speed in May - Rocklin, CA
  • Average wind speed in May: 5.2mph

The windiest month (with the highest average wind speed) is February (5.7mph).
The calmest month (with the lowest average wind speed) is September (4mph).

Average humidity in May
Rocklin, CA

Average humidity in May - Rocklin, CA
  • Average humidity in May: 57%

The month with the highest relative humidity is March (74%).
The month with the lowest relative humidity is July (41%).

Average rainfall in May
Rocklin, CA

Average rainfall in May - Rocklin, CA
  • Average rainfall in May: 0.94"

The wettest month (with the highest rainfall) is March (3.58").
The driest months (with the least rainfall) are July and August (0.04").

Average rainfall days in May
Rocklin, CA

Average rainfall days in May - Rocklin, CA
  • Average rainfall days in May: 5.6 days

The month with the highest number of rainy days is March (14.1 days).
The month with the least rainy days is July (1.1 days).

Average snowfall days in May
Rocklin, CA

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

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

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

Average daylight in May / Average sunshine in May - Rocklin, 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: 11h and 0min

The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 48min).

Average sunshine days in May
Rocklin, CA

Average sunshine days in May - Rocklin, CA
  • Average sunshine days in May: 24.2 days

The month with the most sunshine days is July (29.3 days).
The month with the least sunshine days is March (15.8 days).

Average UV index in May
Rocklin, CA

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

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

Average cloud cover in May
Rocklin, CA

Average cloud cover in May - Rocklin, CA
  • Average cloud cover in May: 20

The month with the most cloud cover is March (Cloud cover 38).
The month with the least cloud cover is July (Cloud cover 4).

Average visibility in May
Rocklin, CA

Average visibility in May - Rocklin, 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).

Rocklin, California, USA

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