May weather forecast
Old Hopland, CA

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Weather in May

May, the last month of the spring in Old Hopland, is a pleasant month, with temperature in the range of an average low of 45.1°F (7.3°C) and an average high of 69.1°F (20.6°C).

Temperature

May brings a slight increase in the average high-temperature, progressing from an enjoyable 63.1°F (17.3°C) in April to an agreeable 69.1°F (20.6°C). From the heights of the May heat, Old Hopland records a mean nighttime low of 45.1°F (7.3°C).

Humidity

In May, the average relative humidity is 69%.

Rainfall

In May, the rain falls for 5.7 days. Throughout May, 1.02" (26mm) of precipitation is accumulated. Throughout the year, there are 83.3 rainfall days, and 17.72" (450mm) of precipitation is accumulated.

Snowfall

In Old Hopland, snow does not fall in January, March through December.

Daylight

In May, the average length of the day in Old Hopland is 14h and 20min.
On the first day of the month, sunrise is at 6:13 am and sunset at 8:05 pm. On the last day of May, in Old Hopland, sunrise is at 5:48 am and sunset at 8:31 pm PDT.

Sunshine

In Old Hopland, the average sunshine in May is 10.5h.

UV index

In May, the average daily maximum UV index in Old Hopland, California, is 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for average individuals.
Note: In May, the maximum UV index of 4 transforms into these recommendations:
Ensure safety - Sun damage prevention is strongly urged. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.
Updated: Feb 10, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are May temperatures in Old Hopland?

The average high-temperature, in May, in Old Hopland, is 69.1°F (20.6°C), while the average low-temperature is 45.1°F (7.3°C).

What is the average humidity in May in Old Hopland?

In Old Hopland, the average relative humidity in May is 69%.

How many days does it rain in May in Old Hopland?

In Old Hopland, California, in May, it is raining for 5.7 days, with typically 1.02" (26mm) of accumulated precipitation.

When it does not snow in Old Hopland?

January, March through December are months without snowfall in Old Hopland, California.

What is the average length of the day in May in Old Hopland?

The average day length in May in Old Hopland, California, is 14h and 20min.

What time are sunrise and sunset in May in Old Hopland?

On the first day of May in Old Hopland, sunrise is at 6:13 am and sunset at 8:05 pm. On the last day of the month, sunrise is at 5:48 am and sunset at 8:31 pm PDT.

How long on average sun shines in May in Old Hopland?

In Old Hopland, California, the average sunshine duration in May is 10.5h.

How high is the UV index in May in Old Hopland?

In Old Hopland, the average daily maximum UV index in May is 4. A UV Index of 3 to 5 symbolizes a moderate vulnerability from unprotected exposure to 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
Old Hopland, CA

Average temperature in May - Old Hopland, CA
  • Average high temperature in May: 69.1°F

The warmest month (with the highest average high temperature) is July (85.3°F).
The month with the lowest average high temperature is December (53.6°F).

  • Average low temperature in May: 45.1°F

The month with the highest average low temperature is July (53.6°F).
The coldest month (with the lowest average low temperature) is December (37.4°F).

Average pressure in May
Old Hopland, CA

Average pressure in May - Old Hopland, CA
  • Average pressure in May: 29.98"Hg

The month with the highest atmospheric pressure is January (30.13"Hg).
The months with the lowest atmospheric pressure are June, August and September (29.92"Hg).

Average wind speed in May
Old Hopland, CA

Average wind speed in May - Old Hopland, CA
  • Average wind speed in May: 5.5mph

The windiest months (with the highest average wind speed) are April, May and June (5.5mph).
The calmest month (with the lowest average wind speed) is November (4.2mph).

Average humidity in May
Old Hopland, CA

Average humidity in May - Old Hopland, CA
  • Average humidity in May: 69%

The month with the highest relative humidity is March (79%).
The months with the lowest relative humidity are July and September (58%).

Average rainfall in May
Old Hopland, CA

Average rainfall in May - Old Hopland, CA
  • Average rainfall in May: 1.02"

The wettest months (with the highest rainfall) are February and December (3.11").
The driest months (with the least rainfall) are July and August (0.08").

Average rainfall days in May
Old Hopland, CA

Average rainfall days in May - Old Hopland, CA
  • Average rainfall days in May: 5.7 days

The month with the highest number of rainy days is March (14.3 days).
The month with the least rainy days is August (1.3 days).

Average snowfall in May
Old Hopland, CA

Average snowfall in May - Old Hopland, CA
  • Average snowfall in May: 0"

The month with the highest snowfall is February (0.04").
The months with the least snowfall are January, March, April, May, June, July, August, September, October, November and December (0").

Average snowfall days in May
Old Hopland, CA

Average snowfall days in May - Old Hopland, CA
  • Average snowfall days in May: 0 days

The month with the highest number of snowfall days is February (0.3 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
Old Hopland, CA

Average daylight in May / Average sunshine in May - Old Hopland, 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: 10h and 3min

The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 18min).

Average sunshine days in May
Old Hopland, CA

Average sunshine days in May - Old Hopland, CA
  • Average sunshine days in May: 23 days

The month with the most sunshine days is July (28.5 days).
The month with the least sunshine days is March (15.9 days).

Average UV index in May
Old Hopland, CA

Average UV index in May - Old Hopland, CA
  • Average UV index in May: 4

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

Average cloud cover in May
Old Hopland, CA

Average cloud cover in May - Old Hopland, CA
  • Average cloud cover in May: 29

The month with the most cloud cover is March (Cloud cover 45).
The month with the least cloud cover is August (Cloud cover 6).

Average visibility in May
Old Hopland, CA

Average visibility in May - Old Hopland, CA
  • Average visibility in May: 6mi

The months with the highest visibility are February, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, March and December (5mi).

Old Hopland, California, USA

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