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 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
At the onset of May, Boulder Creek records an average high-temperature of a still enjoyable 64.2°F (17.9°C), showing little deviation from the preceding month. Boulder Creek anticipates an average minimum temperature of 50°F (10°C) in the month of May.Humidity
The average relative humidity in May in Boulder Creek is 75%.Rainfall
In May, the rain falls for 5 days. Throughout May, 0.63" (16mm) of precipitation is accumulated. In Boulder Creek, during the entire year, the rain falls for 74.2 days and collects up to 13.82" (351mm) of precipitation.Daylight
In Boulder Creek, the average length of the day in May is 14h and 11min.On the first day of the month, sunrise is at 6:12 am and sunset at 7:58 pm. On the last day of May, in Boulder Creek, sunrise is at 5:49 am and sunset at 8:22 pm PDT.
Sunshine
In Boulder Creek, California, the average sunshine in May is 10.7h.UV index
The average daily maximum UV index in May in Boulder Creek, California, is 4. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for ordinary individuals.Note: The UV index of 4 during May translates into the following guidance:
Take precautions - Protection against sunburn is recommended. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized.
Frequently asked questions
What is the temperature in May in Boulder Creek?
What is the average humidity in May in Boulder Creek?
How many days does it rain in May in Boulder Creek?
What is the average length of the day in May in Boulder Creek?
When is the sunrise / sunset in May in Boulder Creek?
How long on average sun shines in May in Boulder Creek?
What is the UV index reading in May in Boulder Creek?
Average temperature in May
Boulder Creek, CA
- Average high temperature in May: 64.2°F
The warmest month (with the highest average high temperature) is August (72.9°F).
The month with the lowest average high temperature is December (56.3°F).
- Average low temperature in May: 50°F
The month with the highest average low temperature is September (56.3°F).
The coldest month (with the lowest average low temperature) is February (46.4°F).
Average pressure in May
Boulder Creek, CA
- Average pressure in May: 29.99"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is September (29.92"Hg).
Average wind speed in May
Boulder Creek, CA
- Average wind speed in May: 7.6mph
The windiest month (with the highest average wind speed) is April (7.9mph).
The calmest months (with the lowest average wind speed) are July and August (5.8mph).
Average humidity in May
Boulder Creek, CA
- Average humidity in May: 75%
The month with the highest relative humidity is March (76%).
The months with the lowest relative humidity are October and November (69%).
Average rainfall in May
Boulder Creek, CA
- Average rainfall in May: 0.63"
The wettest month (with the highest rainfall) is February (2.64").
The driest month (with the least rainfall) is July (0.04").
Average rainfall days in May
Boulder Creek, CA
- Average rainfall days in May: 5 days
The month with the highest number of rainy days is March (13.3 days).
The months with the least rainy days are June and August (1.4 days).
Average daylight in May /
Average sunshine in May
Boulder Creek, 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 42min).
- 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 54min).
Average sunshine days in May
Boulder Creek, CA
- Average sunshine days in May: 23.6 days
The month with the most sunshine days is June (27.3 days).
The month with the least sunshine days is March (16.6 days).
Average UV index in May
Boulder Creek, CA
- Average UV index in May: 4
The months with the highest UV index are June, July, August and September (UV index 5).
The months with the lowest UV index are February, November and December (UV index 3).
Average cloud cover in May
Boulder Creek, CA
- Average cloud cover in May: 25
The month with the most cloud cover is March (Cloud cover 35).
The month with the least cloud cover is July (Cloud cover 11).
Average visibility in May
Boulder Creek, 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).
Boulder Creek, California, USA
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