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 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
As April gives way to May, the average high-temperature displays a slight ascent, adjusting from an agreeable 69.8°F (21°C) to a moderately hot 77.7°F (25.4°C). With a significant temperature contrast, nighttime temperatures in Herald hover around an average low of 51.1°F (10.6°C) in May.Humidity
In May, the average relative humidity is 58%.Rainfall
In Herald, in May, during 4.8 rainfall days, 0.71" (18mm) of precipitation is typically accumulated. In Herald, during the entire year, the rain falls for 63.8 days and collects up to 12.6" (320mm) of precipitation.Snowfall
January through November are months without snowfall.Daylight
In Herald, the average length of the day in May is 14h and 16min.On the first day of the month, sunrise is at 6:07 am and sunset at 7:56 pm. On the last day of May, in Herald, sunrise is at 5:43 am and sunset at 8:22 pm PDT.
Sunshine
In May, the average sunshine in Herald is 11.2h.UV index
The average daily maximum UV index in May in Herald, California, is 5. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for the average person.Note: The maximum UV index of 5 during May translates into these guidelines:
Take precautions - Protection against sun damage is advised. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck.
Frequently asked questions
What is the temperature in May in Herald?
What is the average humidity in May in Herald?
How many days does it rain in May in Herald?
When it does not snow in Herald?
What is the average length of the day in May in Herald?
When are sunrise and sunset in May in Herald?
How many hours of sunshine does Herald have in May?
How high is the UV index in May in Herald?
Average temperature in May
Herald, CA
- Average high temperature in May: 77.7°F
The warmest month (with the highest average high temperature) is July (93.9°F).
The month with the lowest average high temperature is December (55°F).
- Average low temperature in May: 51.1°F
The month with the highest average low temperature is August (58.8°F).
The coldest month (with the lowest average low temperature) is December (41°F).
Average pressure in May
Herald, 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).
Average wind speed in May
Herald, CA
- Average wind speed in May: 5.7mph
The windiest months (with the highest average wind speed) are February and June (5.8mph).
The calmest month (with the lowest average wind speed) is November (4.4mph).
Average humidity in May
Herald, CA
- Average humidity in May: 58%
The month with the highest relative humidity is March (75%).
The month with the lowest relative humidity is July (45%).
Average rainfall in May
Herald, CA
- Average rainfall in May: 0.71"
The wettest month (with the highest rainfall) is February (2.4").
The driest months (with the least rainfall) are July and August (0.04").
Average rainfall days in May
Herald, CA
- Average rainfall days in May: 4.8 days
The month with the highest number of rainy days is March (12.4 days).
The month with the least rainy days is June (0.9 days).
Average snowfall days in May
Herald, CA
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is December (0.1 days).
The months with the least snowfall days are January, February, March, April, May, June, July, August, September, October and November (0 days).
Average daylight in May /
Average sunshine in May
Herald, 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 36min).
- Average sunshine in May: 11h and 1min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 54min).
Average sunshine days in May
Herald, CA
- Average sunshine days in May: 25.5 days
The month with the most sunshine days is August (29.3 days).
The month with the least sunshine days is March (17.8 days).
Average UV index in May
Herald, CA
- Average UV index in May: 5
The month with the highest UV index is June (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover in May
Herald, CA
- Average cloud cover in May: 19
The month with the most cloud cover is March (Cloud cover 35).
The month with the least cloud cover is July (Cloud cover 4).
Average visibility in May
Herald, 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).
Herald, California, USA
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