May weather forecastGalt, CA
May
Weather in May
The last month of the spring, May, is a moderately hot month in Galt, California, with an average temperature varying between 77.7°F (25.4°C) and 51.1°F (10.6°C).Temperature
May showcases a minor temperature ascent, adjusting from April's pleasant 69.8°F (21°C) to a moderately hot 77.7°F (25.4°C). In Galt, the nighttime chill during May is a clear shift from the day's highs, with an average of 51.1°F (10.6°C).Humidity
The average relative humidity in May is 58%.Rainfall
In Galt, in May, during 4.8 rainfall days, 0.71" (18mm) of precipitation is typically accumulated. Throughout the year, there are 63.8 rainfall days, and 12.6" (320mm) of precipitation is accumulated.Snowfall
In Galt, snow does not fall in January through November.Daylight
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 7:57 pm. On the last day of May, in Galt, sunrise is at 5:43 am and sunset at 8:22 pm PDT.
Sunshine
The average sunshine in May in Galt is 11.2h.UV index
In Galt, the average daily maximum UV index in May is 5. 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: An average maximum UV index of 5 in May leads to these recommendations:
Guard yourself - An obligation to protect skin and eyes from harm exists. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Galt, 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
Galt, 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
Galt, 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
Galt, 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
Galt, 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
Galt, 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
Galt, 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
Galt, CA
- Average daylight in May: 14h and 18min
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 12min
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
Galt, 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
Galt, 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
Galt, 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
Galt, 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).





