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 shift into May is characterized by a subtle rise in the average high-temperature, transitioning from April's enjoyable 67.6°F (19.8°C) to a warm 75.6°F (24.2°C). A sharp reduction from the daytime highs is witnessed during May, with nighttime temperatures averaging a low of 51.4°F (10.8°C).Humidity
In May, the average relative humidity in Rackerby is 56%.Rainfall
In Rackerby, during May, the rain falls for 5.3 days and regularly aggregates up to 0.87" (22mm) of precipitation. In Rackerby, during the entire year, the rain falls for 71.4 days and collects up to 15.31" (389mm) of precipitation.Snowfall
January, March through December are months without snowfall.Daylight
In May, the average length of the day is 14h and 22min.On the first day of the month, sunrise is at 6:05 am and sunset at 7:59 pm. On the last day of May, sunrise is at 5:40 am and sunset at 8:26 pm PDT.
Sunshine
In Rackerby, the average sunshine in May is 11.1h.UV index
In May, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for average individuals.Note: The daily high UV index of 5 in May translates into this advice:
Prioritize safety - The need to safeguard skin and eyes from harm is emphasized. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. Always opt for UVA and UVB-resistant sunglasses on radiant days.
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 many days does it rain in May?
When it does not snow?
What is the average length of the day in May?
When are sunrise and sunset in May?
How long on average sun shines in May?
How high is the UV index in May?
Average temperature in May
Rackerby, CA
- Average high temperature in May: 75.6°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 (53.6°F).
- Average low temperature in May: 51.4°F
The month with the highest average low temperature is July (62.1°F).
The coldest month (with the lowest average low temperature) is December (39.7°F).
Average pressure in May
Rackerby, CA
- Average pressure in May: 29.95"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in May
Rackerby, CA
- Average wind speed in May: 5.9mph
The windiest month (with the highest average wind speed) is March (6mph).
The calmest months (with the lowest average wind speed) are August and November (5mph).
Average humidity in May
Rackerby, CA
- Average humidity in May: 56%
The month with the highest relative humidity is March (74%).
The month with the lowest relative humidity is July (35%).
Average rainfall in May
Rackerby, CA
- Average rainfall in May: 0.87"
The wettest month (with the highest rainfall) is March (2.87").
The driest month (with the least rainfall) is July (0.04").
Average rainfall days in May
Rackerby, CA
- Average rainfall days in May: 5.3 days
The month with the highest number of rainy days is March (12.8 days).
The month with the least rainy days is July (1.6 days).
Average snowfall in May
Rackerby, 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
Rackerby, CA
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is February (0.2 days).
The months with the least snowfall days are January, March, April, May, June, July, August, September, October and November (0 days).
Average daylight in May /
Average sunshine in May
Rackerby, 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 24min).
- 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 48min).
Average sunshine days in May
Rackerby, CA
- Average sunshine days in May: 24.7 days
The month with the most sunshine days is July (29.1 days).
The month with the least sunshine days is March (17.4 days).
Average UV index in May
Rackerby, CA
- Average UV index in May: 5
The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover in May
Rackerby, CA
- Average cloud cover in May: 20
The month with the most cloud cover is March (Cloud cover 39).
The month with the least cloud cover is July (Cloud cover 4).
Average visibility in May
Rackerby, 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).
Rackerby, California, USA
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