May weather forecastGreenfield, CA
May
Weather in May
The last month of the spring, May, is a moderately hot month in Greenfield, California, with an average temperature varying between 48.7°F (9.3°C) and 74.3°F (23.5°C).Temperature
Greenfield in May observes a minor temperature shift, with average high-temperatures adjusting from an agreeable 68.4°F (20.2°C) in April to a moderately hot 74.3°F (23.5°C). In the face of high daytime temperatures, Greenfield witnesses a consistent average nighttime low of 48.7°F (9.3°C) during May.Humidity
In Greenfield, the average relative humidity in May is 57%.Rainfall
In Greenfield, in May, during 4.1 rainfall days, 0.24" (6mm) of precipitation is typically accumulated. Throughout the year, there are 62.4 rainfall days, and 9.45" (240mm) of precipitation is accumulated.Daylight
The average length of the day in May is 14h and 7min.On the first day of the month, sunrise is at 6:10 am and sunset at 7:53 pm. On the last day of May, sunrise is at 5:48 am and sunset at 8:16 pm PDT.
Sunshine
The average sunshine in May is 11.4h.UV index
The average daily maximum UV index in May is 5. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for average individuals.Note: The average daily UV index of 5 in May transforms into the following instructions:
Preventative actions are necessary - Suggestions to safeguard against sun damage are in order. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Greenfield, CA
- Average high temperature in May: 74.3°F
The warmest month (with the highest average high temperature) is July (89.1°F).
The month with the lowest average high temperature is December (56.8°F).
- Average low temperature in May: 48.7°F
The month with the highest average low temperature is August (58.6°F).
The coldest month (with the lowest average low temperature) is December (40.8°F).
Average pressure in May
Greenfield, CA
- Average pressure in May: 29.98"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
Greenfield, CA
- Average wind speed in May: 6.3mph
The windiest month (with the highest average wind speed) is May (6.3mph).
The calmest month (with the lowest average wind speed) is November (4.5mph).
Average humidity in May
Greenfield, CA
- Average humidity in May: 57%
The month with the highest relative humidity is February (70%).
The month with the lowest relative humidity is July (46%).
Average rainfall in May
Greenfield, CA
- Average rainfall in May: 0.24"
The wettest month (with the highest rainfall) is December (1.89").
The driest month (with the least rainfall) is August (0.04").
Average rainfall days in May
Greenfield, CA
- Average rainfall days in May: 4.1 days
The month with the highest number of rainy days is March (11.8 days).
The month with the least rainy days is August (0.4 days).
Average daylight in May /
Average sunshine in May
Greenfield, CA
- Average daylight in May: 14h and 6min
The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in May: 11h and 24min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 6h and 6min).
Average sunshine days in May
Greenfield, CA
- Average sunshine days in May: 26.3 days
The month with the most sunshine days is August (30.1 days).
The month with the least sunshine days is March (18.3 days).
Average UV index in May
Greenfield, 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 February, November and December (UV index 3).
Average cloud cover in May
Greenfield, CA
- Average cloud cover in May: 16
The months with the most cloud cover are March and December (Cloud cover 32).
The months with the least cloud cover are July and August (Cloud cover 4).
Average visibility in May
Greenfield, 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).
