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 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
May's average high-temperature stands at a warm 76.6°F (24.8°C), showing little deviation from April's 72.9°F (22.7°C). During May nights, Rochester documents a marked contrast from daily highs, with an average temperature of 53.6°F (12°C).Humidity
The months with the highest humidity are February, March and May, with an average relative humidity of 53%.Rainfall
In Rochester, during May, the rain falls for 3.2 days and regularly aggregates up to 0.2" (5mm) of precipitation. In Rochester, during the entire year, the rain falls for 42.3 days and collects up to 4.53" (115mm) of precipitation.Snowfall
January, March through December are months without snowfall in Rochester.Daylight
In May, the average length of the day is 13h and 57min.On the first day of the month, sunrise is at 5:59 am and sunset at 7:34 pm. On the last day of May, in Rochester, sunrise is at 5:39 am and sunset at 7:56 pm PDT.
Sunshine
The average sunshine in May in Rochester is 11.8h.UV index
The average daily maximum UV index in May is 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV rays for ordinary individuals.Note: During May, 6 as the daily maximum UV index converts into the following advice:
Deflect overexposure. Sun protection is a necessity. Remember that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. Make an effort to avoid direct sun exposure during these hours. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.
Frequently asked questions
What are May temperatures in Rochester?
What is the most humid month in Rochester?
What is the average humidity in May in Rochester?
How many days does it rain in May in Rochester?
When it does not snow in Rochester?
What is the average length of the day in May in Rochester?
When are sunrise and sunset in May in Rochester?
How many hours of sunshine does Rochester have in May?
What is the UV index reading in May in Rochester?
Average temperature in May
Rochester, CA
- Average high temperature in May: 76.6°F
The warmest month (with the highest average high temperature) is August (91.8°F).
The month with the lowest average high temperature is December (61.7°F).
- Average low temperature in May: 53.6°F
The month with the highest average low temperature is August (66.6°F).
The coldest months (with the lowest average low temperature) are February and December (45.3°F).
Average pressure in May
Rochester, CA
- Average pressure in May: 29.9"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.86"Hg).
Average wind speed in May
Rochester, CA
- Average wind speed in May: 5.9mph
The windiest month (with the highest average wind speed) is May (5.9mph).
The calmest month (with the lowest average wind speed) is September (4.5mph).
Average humidity in May
Rochester, CA
- Average humidity in May: 53%
The months with the highest relative humidity are February, March and May (53%).
The month with the lowest relative humidity is August (41%).
Average rainfall in May
Rochester, CA
- Average rainfall in May: 0.2"
The wettest month (with the highest rainfall) is February (0.98").
The driest month (with the least rainfall) is June (0.04").
Average rainfall days in May
Rochester, CA
- Average rainfall days in May: 3.2 days
The month with the highest number of rainy days is March (6.3 days).
The month with the least rainy days is June (0.9 days).
Average snowfall days in May
Rochester, CA
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is February (0.1 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
Rochester, CA
- Average daylight in May: 14h and 0min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in May: 11h and 5min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The months with the least sunshine are February and December (Average sunshine: 6h and 54min).
Average sunshine days in May
Rochester, CA
- Average sunshine days in May: 26.2 days
The month with the most sunshine days is June (28.3 days).
The month with the least sunshine days is February (22.8 days).
Average UV index in May
Rochester, CA
- Average UV index in May: 6
The months with the highest UV index are July and August (UV index 7).
The month with the lowest UV index is December (UV index 3).
Average cloud cover in May
Rochester, CA
- Average cloud cover in May: 12
The months with the most cloud cover are February and December (Cloud cover 21).
The month with the least cloud cover is August (Cloud cover 5).
Average visibility in May
Rochester, 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).
Rochester, California, USA
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