May weather forecast
Modesto, CA

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Weather in May

May, the last month of the spring in Modesto, is a warm month, with an average temperature ranging between min 52.7°F (11.5°C) and max 80.1°F (26.7°C).

Temperature

May's onset brings a subtle temperature rise, moving from an agreeable 72.1°F (22.3°C) in April to a moderately hot 80.1°F (26.7°C). Modesto registers a prominent dip from daytime highs, with an average of 52.7°F (11.5°C) during the nights of May.

Humidity

In May, the average relative humidity is 51%.

Rainfall

In May, in Modesto, the rain falls for 3.6 days. Throughout May, 0.39" (10mm) of precipitation is accumulated. In Modesto, California, during the entire year, the rain falls for 54.3 days and collects up to 6.54" (166mm) of precipitation.

Daylight

In May, the average length of the day in Modesto is 14h and 13min.
On the first day of May, sunrise is at 6:07 am and sunset at 7:54 pm. On the last day of the month, sunrise is at 5:44 am and sunset at 8:19 pm PDT.

Sunshine

In May, the average sunshine is 11.3h.

UV index

In Modesto, the average daily maximum UV index in May is 6. A UV Index estimate of 6 to 7 represents a high health hazard from exposure to the Sun's UV rays for the average person.
Note: In May, the maximum UV index of 6 translates into these guidelines:
Embrace precautions and observe sun safety norms. Evasion of sunburn is a necessity. The Sun's UV radiation is most potent between 10 a.m. and 4 p.m. Try to limit direct exposure to the Sun during this period. Employ a hat with a wide brim for robust protection, cutting UV exposure by half.
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Frequently asked questions

What are the temperatures in Modesto in May?

The average high-temperature and low-temperature in Modesto, California, during May are 80.1°F (26.7°C) and 52.7°F (11.5°C) respectively.

What is the average humidity in May in Modesto?

The average relative humidity in May is 51%.

How many days does it rain in May in Modesto?

In Modesto, California, in May, during 3.6 rainfall days, 0.39" (10mm) of precipitation is typically accumulated.

What is the average length of the day in May in Modesto?

In May, the average day length is 14h and 13min.

When is the sunrise / sunset in May in Modesto?

On the first day of May, sunrise is at 6:07 am and sunset at 7:54 pm. On the last day of the month, sunrise is at 5:44 am and sunset at 8:19 pm PDT.

How many hours of sunshine does Modesto have in May?

The average sunshine duration in May is 11.3h.

What is the UV index intensity in May in Modesto?

The average daily maximum UV index in May in Modesto, California, is 6. A UV Index of 6 to 7 symbolizes a high health vulnerability 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
Modesto, CA

Average temperature in May - Modesto, CA
  • Average high temperature in May: 80.1°F

The warmest month (with the highest average high temperature) is July (97.7°F).
The month with the lowest average high temperature is December (55.6°F).

  • Average low temperature in May: 52.7°F

The month with the highest average low temperature is July (62.1°F).
The coldest months (with the lowest average low temperature) are January and December (41.9°F).

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Average pressure in May
Modesto, CA

Average pressure in May - Modesto, 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).

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Average wind speed in May
Modesto, CA

Average wind speed in May - Modesto, CA
  • Average wind speed in May: 6.7mph

The windiest month (with the highest average wind speed) is June (7.3mph).
The calmest month (with the lowest average wind speed) is November (5.2mph).

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Average humidity in May
Modesto, CA

Average humidity in May - Modesto, CA
  • Average humidity in May: 51%

The month with the highest relative humidity is January (72%).
The month with the lowest relative humidity is July (37%).

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Average rainfall in May
Modesto, CA

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

The wettest month (with the highest rainfall) is March (1.3").
The driest months (with the least rainfall) are July and August (0.04").

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Average rainfall days in May
Modesto, CA

Average rainfall days in May - Modesto, CA
  • Average rainfall days in May: 3.6 days

The month with the highest number of rainy days is March (10.3 days).
The month with the least rainy days is August (0.9 days).

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

Average daylight in May / Average sunshine in May - Modesto, 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 6min).
The month with the least sunshine is December (Average sunshine: 6h and 0min).

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Average sunshine days in May
Modesto, CA

Average sunshine days in May - Modesto, CA
  • Average sunshine days in May: 26.7 days

The month with the most sunshine days is August (29.2 days).
The month with the least sunshine days is March (19.6 days).

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Average UV index in May
Modesto, CA

Average UV index in May - Modesto, 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).

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Average cloud cover in May
Modesto, CA

Average cloud cover in May - Modesto, CA
  • Average cloud cover in May: 17

The month with the most cloud cover is March (Cloud cover 33).
The month with the least cloud cover is July (Cloud cover 4).

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Average visibility in May
Modesto, CA

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

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