Contents
- Weather in May
- Frequently asked questions
- Average temperature in May
- Average pressure in May
- Average wind speed in May
- Average humidity in May
- Average rainfall in May
- Average rainfall days in May
- Average snowfall in May
- Average snowfall days in May
- Average daylight in May
- Average sunshine in May
- Average sunshine days in May
- Average UV index in May
- Average cloud cover in May
- Average visibility in May
Weather in May
Temperature
The start of May is characterized by a subtle increase in the average high-temperature, transitioning from a comfortable 66°F (18.9°C) in April to an agreeable 71.4°F (21.9°C). A noteworthy thermal contrast characterizes Healdsburg's May nights, with temperatures averaging at a frosty 47.3°F (8.5°C).Humidity
The average relative humidity in May is 67%.Rainfall
In May, in Healdsburg, the rain falls for 6.2 days. Throughout May, 0.98" (25mm) of precipitation is accumulated. In Healdsburg, during the entire year, the rain falls for 81.2 days and collects up to 19.84" (504mm) of precipitation.Snowfall
January, March through December are months without snowfall.Daylight
The average length of the day in May is 14h and 18min.On the first day of the month, sunrise is at 6:12 am and sunset at 8:03 pm. On the last day of May, sunrise is at 5:48 am and sunset at 8:29 pm PDT.
Sunshine
In Healdsburg, California, the average sunshine in May is 10.7h.UV index
In Healdsburg, the average daily maximum UV index in May is 5. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for the ordinary person.Note: The daily high UV index of 5 in May translates into this advice:
Take heed. Individuals of lighter complexion can be burned in less than half an hour. When the Sun is at its strongest around midday, find shade and limit exposure. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are May temperatures?
What is the average humidity in May?
How much does it rain in May?
When it does not snow?
How many hours of daylight does Healdsburg have in May?
What time are sunrise and sunset in May?
How long on average sun shines in May?
What is the UV index intensity in May?
Average temperature in May
Healdsburg, CA
- Average high temperature in May: 71.4°F
The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is December (55°F).
- Average low temperature in May: 47.3°F
The month with the highest average low temperature is August (55°F).
The coldest month (with the lowest average low temperature) is December (40.1°F).
Average pressure in May
Healdsburg, CA
- Average pressure in May: 29.97"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
Healdsburg, CA
- Average wind speed in May: 6.2mph
The windiest months (with the highest average wind speed) are April and May (6.2mph).
The calmest month (with the lowest average wind speed) is November (4.5mph).
Average humidity in May
Healdsburg, CA
- Average humidity in May: 67%
The month with the highest relative humidity is March (76%).
The month with the lowest relative humidity is September (57%).
Average rainfall in May
Healdsburg, CA
- Average rainfall in May: 0.98"
The wettest month (with the highest rainfall) is February (4.33").
The driest months (with the least rainfall) are July and August (0.04").
Average rainfall days in May
Healdsburg, CA
- Average rainfall days in May: 6.2 days
The month with the highest number of rainy days is March (14.2 days).
The month with the least rainy days is August (0.8 days).
Average snowfall in May
Healdsburg, 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
Healdsburg, CA
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is February (0.1 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
Healdsburg, 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: 10h and 4min
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 36min).
Average sunshine days in May
Healdsburg, CA
- Average sunshine days in May: 23.4 days
The month with the most sunshine days is July (29.8 days).
The month with the least sunshine days is March (14.8 days).
Average UV index in May
Healdsburg, 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 January, February, November and December (UV index 3).
Average cloud cover in May
Healdsburg, CA
- Average cloud cover in May: 25
The month with the most cloud cover is March (Cloud cover 41).
The months with the least cloud cover are July and August (Cloud cover 6).
Average visibility in May
Healdsburg, 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).
Healdsburg, California, USA
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