May weather forecast
Grimes, CA

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Weather in May

May, the last month of the spring in Grimes, is a warm month, with an average temperature ranging between max 79.3°F (26.3°C) and min 53.2°F (11.8°C).

Temperature

Grimes's transition into May is marked by a minor temperature shift, moving from an agreeable 70.5°F (21.4°C) in April to a moderately hot 79.3°F (26.3°C). May nights in Grimes are characterized by a significant departure from the daytime highs, dropping to an average temperature of 53.2°F (11.8°C).

Humidity

In Grimes, the average relative humidity in May is 53%.

Rainfall

In May, in Grimes, California, the rain falls for 5.3 days. Throughout May, 0.98" (25mm) of precipitation is accumulated. Throughout the year, there are 75.1 rainfall days, and 17.09" (434mm) of precipitation is accumulated.

Daylight

The average length of the day in May in Grimes is 14h and 20min.
On the first day of May in Grimes, sunrise is at 6:08 am and sunset at 8:00 pm. On the last day of the month, sunrise is at 5:43 am and sunset at 8:27 pm PDT.

Sunshine

In Grimes, the average sunshine in May is 11.1h.

UV index

In Grimes, the average daily maximum UV index in May is 5. A UV Index reading of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: In May, a daily UV index of 5 turns into the following recommendations:
Be vigilant - A duty to shield skin and eyes from injury exists. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage.
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Frequently asked questions

What is the average May temperature in Grimes?

The average high-temperature, in May, in Grimes, is 79.3°F (26.3°C), while the average low-temperature is 53.2°F (11.8°C).

What is the average humidity in May in Grimes?

In Grimes, California, the average relative humidity in May is 53%.

How many days does it rain in May in Grimes?

In May, in Grimes, the rain falls for 5.3 days. Throughout May, 0.98" (25mm) of precipitation is accumulated.

How many hours of daylight does Grimes have in May?

In Grimes, California, the average day length in May is 14h and 20min.

What time are sunrise and sunset in May in Grimes?

In May, on the first day of the month, sunrise is at 6:08 am and sunset at 8:00 pm. On the last day of the month, sunrise is at 5:43 am and sunset at 8:27 pm PDT.

How many hours of sunshine does Grimes have in May?

The average sunshine duration in May is 11.1h.

How high is the UV index in May in Grimes?

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

Average temperature in May - Grimes, CA
  • Average high temperature in May: 79.3°F

The warmest month (with the highest average high temperature) is July (97.2°F).
The month with the lowest average high temperature is December (54.5°F).

  • Average low temperature in May: 53.2°F

The month with the highest average low temperature is July (62.1°F).
The coldest month (with the lowest average low temperature) is December (41.4°F).

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Average pressure in May
Grimes, CA

Average pressure in May - Grimes, 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).

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Average wind speed in May
Grimes, CA

Average wind speed in May - Grimes, CA
  • Average wind speed in May: 5.8mph

The windiest month (with the highest average wind speed) is March (6.1mph).
The calmest month (with the lowest average wind speed) is September (4.5mph).

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Average humidity in May
Grimes, CA

Average humidity in May - Grimes, CA
  • Average humidity in May: 53%

The month with the highest relative humidity is March (73%).
The months with the lowest relative humidity are July and September (38%).

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Average rainfall in May
Grimes, CA

Average rainfall in May - Grimes, CA
  • Average rainfall in May: 0.98"

The wettest month (with the highest rainfall) is February (3.07").
The driest months (with the least rainfall) are July and August (0.04").

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Average rainfall days in May
Grimes, CA

Average rainfall days in May - Grimes, CA
  • Average rainfall days in May: 5.3 days

The month with the highest number of rainy days is March (13.8 days).
The month with the least rainy days is July (0.9 days).

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

Average daylight in May / Average sunshine in May - Grimes, CA
  • Average daylight in May: 14h and 2min

The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).

  • Average sunshine in May: 11h and 1min

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

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Average sunshine days in May
Grimes, CA

Average sunshine days in May - Grimes, CA
  • Average sunshine days in May: 24.4 days

The month with the most sunshine days is July (29.7 days).
The month with the least sunshine days is March (16.2 days).

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Average UV index in May
Grimes, CA

Average UV index in May - Grimes, 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).

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Average cloud cover in May
Grimes, CA

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

The month with the most cloud cover is March (Cloud cover 37).
The month with the least cloud cover is July (Cloud cover 4).

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Average visibility in May
Grimes, CA

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

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