May weather forecastRichgrove, CA
May
Weather in May
The last month of the spring, May, is another warm month in Richgrove, California, with an average temperature fluctuating between 81.1°F (27.3°C) and 55.8°F (13.2°C).Temperature
The beginning of May signals a minor rise in the average high-temperature, moving from a warm 73.6°F (23.1°C) in April to a still moderately hot 81.1°F (27.3°C). Despite a noticeable differential from daytime highs, Richgrove notes an average nighttime low-temperature of 55.8°F (13.2°C) in May.Heat index
The heat index value for May is evaluated at 80.6°F (27°C). When exposure and activity are sustained, they could induce fatigue, with a chance of heat cramps.Know that the heat index computations account for shaded terrains and slight winds. Heat index values may surge by up to 15 Fahrenheit (8 Celsius) degrees in the presence of direct sunlight.
Note: The heat index, also known as 'feels like' or 'felt air temperature', melds the effects of warmth and moisture to generate a feeling of heat. The individual's temperature perception can be influenced by numerous factors such as metabolic variations, physical activity, and clothing. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it's vital to remain hydrated, particularly during prolonged physical activities.
Humidity
The average relative humidity in May is 43%.Rainfall
In Richgrove, in May, it is raining for 4.2 days, with typically 0.55" (14mm) of accumulated precipitation. In Richgrove, during the entire year, the rain falls for 52 days and collects up to 6.85" (174mm) of precipitation.Snowfall
In Richgrove, snow does not fall in January, March through December.Daylight
In May, the average length of the day is 14h and 5min.On the first day of May in Richgrove, sunrise is at 6:03 am and sunset at 7:43 pm. On the last day of the month, sunrise is at 5:41 am and sunset at 8:06 pm PDT.
Sunshine
In Richgrove, the average sunshine in May is 11.5h.UV index
In May, the average daily maximum UV index in Richgrove is 6. A UV Index estimate of 6 to 7 represents a high health risk from unprotected exposure to Sun's UV rays for average individuals.Note: The maximum daily UV index of 6 during May translates into the following directions:
Embrace precautions and observe sun safety norms. Evasion of sunburn is a necessity. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Richgrove, CA
- Average high temperature in May: 81.1°F
The warmest month (with the highest average high temperature) is July (99.7°F).
The month with the lowest average high temperature is December (58.1°F).
- Average low temperature in May: 55.8°F
The month with the highest average low temperature is July (66.2°F).
The coldest month (with the lowest average low temperature) is December (41.9°F).
Average pressure in May
Richgrove, CA
- Average pressure in May: 29.93"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in May
Richgrove, CA
- Average wind speed in May: 4.7mph
The windiest month (with the highest average wind speed) is June (5mph).
The calmest months (with the lowest average wind speed) are November and December (3.5mph).
Average humidity in May
Richgrove, CA
- Average humidity in May: 43%
The months with the highest relative humidity are January and December (63%).
The month with the lowest relative humidity is August (30%).
Average rainfall in May
Richgrove, CA
- Average rainfall in May: 0.55"
The wettest month (with the highest rainfall) is March (1.34").
The driest month (with the least rainfall) is August (0.08").
Average rainfall days in May
Richgrove, CA
- Average rainfall days in May: 4.2 days
The month with the highest number of rainy days is March (8.4 days).
The month with the least rainy days is August (0.9 days).
Average snowfall in May
Richgrove, 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
Richgrove, 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, November and December (0 days).
Average daylight in May /
Average sunshine in May
Richgrove, CA
- Average daylight in May: 14h and 6min
The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).
- Average sunshine in May: 11h and 30min
The month with the most sunshine is June (Average sunshine: 12h and 12min).
The month with the least sunshine is December (Average sunshine: 6h and 42min).
Average sunshine days in May
Richgrove, CA
- Average sunshine days in May: 26.3 days
The month with the most sunshine days is August (28.3 days).
The month with the least sunshine days is February (20.7 days).
Average UV index in May
Richgrove, CA
- Average UV index in May: 6
The month with the highest UV index is July (UV index 8).
The months with the lowest UV index are November and December (UV index 3).
Average cloud cover in May
Richgrove, CA
- Average cloud cover in May: 14
The months with the most cloud cover are March and December (Cloud cover 25).
The months with the least cloud cover are July and August (Cloud cover 4).
Average visibility in May
Richgrove, 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).





