May weather forecastBoulder Creek, CA
May
Weather in May
The last month of the spring, May, is another refreshing month in Boulder Creek, California, with temperature in the range of an average low of 50°F (10°C) and an average high of 64.2°F (17.9°C).Temperature
The start of May marks an average high-temperature of a still enjoyable 64.2°F (17.9°C), hardly distinguishable from the conditions in April. Throughout the month of May, the nighttime temperature dips to an average of 50°F (10°C).Humidity
In May, the average relative humidity is 75%.Rainfall
In Boulder Creek, in May, it is raining for 5 days, with typically 0.63" (16mm) of accumulated precipitation. Throughout the year, in Boulder Creek, there are 74.2 rainfall days, and 13.82" (351mm) of precipitation is accumulated.Daylight
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, sunrise is at 5:49 am and sunset at 8:22 pm PDT.
Sunshine
The average sunshine in May is 10.7h.UV index
The average daily maximum UV index in May is 4. A UV Index estimate of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for the ordinary person.Note: In May, the average maximum UV index of 4 translates into the following recommendations:
Take precautions. Light skin individuals may get burned in less than 30 minutes. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
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 12min
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 42min
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).
