May weather forecastColfax, CA
May
Weather in May
May, the last month of the spring in Colfax, is an agreeable month, with an average temperature ranging between max 69.4°F (20.8°C) and min 46.9°F (8.3°C).Temperature
Colfax's transition into May brings a slight rise in the average high-temperature, moving from an enjoyable 62.1°F (16.7°C) in April to an agreeable 69.4°F (20.8°C). Nightly readings in May display a noticeable downturn from daily highs, with the average low-temperature registering a chilly 46.9°F (8.3°C).Humidity
In Colfax, the average relative humidity in May is 61%.Rainfall
In Colfax, during May, the rain falls for 8.4 days and regularly aggregates up to 2.01" (51mm) of precipitation. In Colfax, California, during the entire year, the rain falls for 78.8 days and collects up to 30.16" (766mm) of precipitation.Snowfall
January through May, November and December are months with snowfall in Colfax. May is the last month it regularly snows. During 0.1 snowfall days, in May, Colfax aggregates 0.12" (3mm) of snow. Throughout the year, in Colfax, there are 8.9 snowfall days, and 19.06" (484mm) of snow is accumulated.Daylight
In Colfax, the average length of the day in May is 14h and 20min.On the first day of May in Colfax, sunrise is at 6:04 am and sunset at 7:57 pm. On the last day of the month, sunrise is at 5:39 am and sunset at 8:23 pm PDT.
Sunshine
In May, the average sunshine is 10.7h.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 ordinary individuals.Note: A maximum daily UV index of 5 during May morphs into the following directions:
Preventative actions are necessary - The mandate to avoid skin and eye damage is in place. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses. Remember this! The UV radiation of the Sun can be nearly doubled by the reflective properties of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Colfax, CA
- Average high temperature in May: 69.4°F
The warmest month (with the highest average high temperature) is July (88.9°F).
The month with the lowest average high temperature is December (50.7°F).
- Average low temperature in May: 46.9°F
The month with the highest average low temperature is July (59.2°F).
The coldest month (with the lowest average low temperature) is December (36.1°F).
Average pressure in May
Colfax, CA
- Average pressure in May: 29.94"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in May
Colfax, CA
- Average wind speed in May: 5.5mph
The windiest month (with the highest average wind speed) is February (6.1mph).
The calmest month (with the lowest average wind speed) is August (4.9mph).
Average humidity in May
Colfax, CA
- Average humidity in May: 61%
The month with the highest relative humidity is March (76%).
The month with the lowest relative humidity is July (37%).
Average rainfall in May
Colfax, CA
- Average rainfall in May: 2.01"
The wettest month (with the highest rainfall) is March (5.79").
The driest month (with the least rainfall) is July (0.04").
Average rainfall days in May
Colfax, CA
- Average rainfall days in May: 8.4 days
The month with the highest number of rainy days is March (13.8 days).
The month with the least rainy days is July (1.3 days).
Average snowfall in May
Colfax, CA
- Average snowfall in May: 0.12"
The month with the highest snowfall is February (6.85").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in May
Colfax, CA
- Average snowfall days in May: 0.1 days
The month with the highest number of snowfall days is March (2.8 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average daylight in May /
Average sunshine in May
Colfax, CA
- Average daylight in May: 14h and 18min
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 30min).
- Average sunshine in May: 10h and 42min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is January (Average sunshine: 5h and 42min).
Average sunshine days in May
Colfax, CA
- Average sunshine days in May: 20.3 days
The month with the most sunshine days is July (28.7 days).
The month with the least sunshine days is March (15.7 days).
Average UV index in May
Colfax, CA
- Average UV index in May: 5
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are February, November and December (UV index 2).
Average cloud cover in May
Colfax, CA
- Average cloud cover in May: 23
The month with the most cloud cover is March (Cloud cover 43).
The months with the least cloud cover are July and August (Cloud cover 5).
Average visibility in May
Colfax, 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).





