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Contents
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average snowfall days
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
Weather in January
January, the same as December, is another comfortable winter month in Rochester, California, with an average temperature ranging between max 64°F (17.8°C) and min 46.2°F (7.9°C). Rochester experiences a recorded average high-temperature of a still refreshing 64°F (17.8°C) in January, closely aligned with December's 61.7°F (16.5°C). Weather in January »
Weather in February
February, the last month of the winter in Rochester, is also an enjoyable month, with temperature in the range of an average low of 45.3°F (7.4°C) and an average high of 64°F (17.8°C). The average high-temperature in February, a still comfortable 64°F (17.8°C), mirrors the temperature recorded in January. Weather in February »
Weather in March
March, the first month of the spring in Rochester, is an agreeable month, with an average temperature fluctuating between 68.4°F (20.2°C) and 46.9°F (8.3°C). The average high-temperature during March registers at an agreeable 68.4°F (20.2°C), closely corresponding to the preceding month. Weather in March »
Weather in April
April, the same as March, in Rochester, California, is an agreeable spring month, with temperature in the range of an average low of 50.5°F (10.3°C) and an average high of 72.9°F (22.7°C). Rochester's average high-temperature in April is a still pleasant 72.9°F (22.7°C), indicating a subtle variation from March. Weather in April »
Weather in May
May, the last month of the spring in Rochester, is a warm month, with an average temperature ranging between max 76.6°F (24.8°C) and min 53.6°F (12°C). 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). Weather in May »
Weather in June
The first month of the summer, June, is still a warm month in Rochester, California, with an average temperature fluctuating between 58.6°F (14.8°C) and 84.7°F (29.3°C). Rochester perceives a slight temperature ascent during June, with average high-temperatures adjusting from a warm 76.6°F (24.8°C) in May to a still moderately hot 84.7°F (29.3°C). Weather in June »
Weather in July
July is a hot summer month in Rochester, California, with temperature in the range of an average low of 64.8°F (18.2°C) and an average high of 90.5°F (32.5°C). July's arrival signals a modest temperature shift, moving from a warm 84.7°F (29.3°C) in June to a hot 90.5°F (32.5°C). Weather in July »
Weather in August
The last month of the summer, August, is also a hot month in Rochester, California, with temperature in the range of an average high of 91.8°F (33.2°C) and an average low of 66.6°F (19.2°C). August temperatures tend to peak at an average high of 91.8°F (33.2°C) and dip to a low of 66.6°F (19.2°C). For August, the heat index is estimated at a hot 93.2°F (34°C). Weather in August »
Weather in September
September, the first month of the autumn in Rochester, is also a hot month, with an average temperature ranging between min 63.7°F (17.6°C) and max 88.3°F (31.3°C). With the advent of September, Rochester's high-temperatures adjust to a still hot 88.3°F (31.3°C), closely aligning with the preceding month. Weather in September »
Weather in October
October, the same as September, is another warm autumn month in Rochester, California, with an average temperature varying between 57.6°F (14.2°C) and 79.2°F (26.2°C). October brings a decrease in the average high-temperature, shifting from a tropical 88.3°F (31.3°C) in September to a warm 79.2°F (26.2°C). Weather in October »
Weather in November
The last month of the autumn, November, is another pleasant month in Rochester, California, with an average temperature varying between 50.9°F (10.5°C) and 70.7°F (21.5°C). A mild drop in Rochester's average high-temperature is observed in November, transitioning from a warm 79.2°F (26.2°C) in October to a pleasant 70.7°F (21.5°C). Weather in November »
Weather in December
December, the first month of the winter in Rochester, is still a comfortable month, with an average temperature fluctuating between 61.7°F (16.5°C) and 45.3°F (7.4°C). December is the coldest month, with an average high-temperature of 61.7°F (16.5°C) and an average low-temperature of 45.3°F (7.4°C). Weather in December »
Updated: Feb 10, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How much does it rain in Rochester?
Throughout the year, there are 42.3 rainfall days, and 4.53" (115mm) of precipitation is accumulated.
When it does not snow in Rochester?
In Rochester, California, snow does not fall in January, March through December.
How many days does it snow in Rochester?
Throughout the year, in Rochester, California, there are 0.1 snowfall days.
What is the most humid month in Rochester?
February, March and May, with an average relative humidity of 53%, are most humid months in Rochester, California.
What is the wettest month in Rochester?
February is the month with the most rainfall. Rain falls for 4.5 days and accumulates 0.98" (25mm) of precipitation.
When does it snow in Rochester?
February is the only month when snow falls.
When does it snow the most in Rochester?
The month with the most snowfall days in Rochester is February, when snow falls for 0.1 days.
What is the month with the least sunshine in Rochester?
The months with the least sunshine in Rochester are February and December, with an average of 6.9h of sunshine.
When is Daylight Saving Time (DST) in Rochester?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Rochester, California, and the time zone changes from PST to PDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from PDT to PST.
What is the driest month in Rochester?
June is the month with the least rainfall in Rochester. Rain falls for 0.9 days and accumulates 0.04" (1mm) of precipitation.
When are the longest days in Rochester?
With an average of 14h and 24min of daylight, June has the longest days of the year in Rochester, California.
What month has the most sunshine in Rochester?
The month with the most sunshine is July, with an average of 12.1h of sunshine.
What are the months with the highest UV index in Rochester?
The months with the highest UV index in Rochester are July and August, with an average maximum UV index of 7.
What month is the hottest in Rochester?
August temperatures tend to peak at an average high of 91.8°F (33.2°C) and dip to a low of 66.6°F (19.2°C).
What is the least humid month in Rochester?
August is the least humid month, with an average relative humidity of 41%.
What month is the coldest in Rochester?
In Rochester, December is known for its average lowest temperatures, reaching a high of 61.7°F (16.5°C) and a low of 45.3°F (7.4°C).
What is the month with the shortest days in Rochester?
With an average of 9h and 54min of daylight, December has the shortest days of the year.
When is the lowest UV index in Rochester?
With an average maximum UV index of 3, December is the month with the lowest UV index in Rochester, California.
Average temperature
Rochester, CA
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).
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
Rochester, CA
- Average pressure in January:
30.1"Hg - Average pressure in February:
30.04"Hg - Average pressure in March:
30.02"Hg - Average pressure in April:
29.95"Hg - Average pressure in May:
29.9"Hg - Average pressure in June:
29.86"Hg
- Average pressure in July:
29.89"Hg - Average pressure in August:
29.88"Hg - Average pressure in September:
29.88"Hg - Average pressure in October:
29.94"Hg - Average pressure in November:
30.03"Hg - Average pressure in December:
30.07"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
Rochester, CA
- Average wind speed in January:
5.3mph - Average wind speed in February:
5mph - Average wind speed in March:
5.3mph - Average wind speed in April:
5.8mph - Average wind speed in May:
5.9mph - Average wind speed in June:
5.5mph
- Average wind speed in July:
5.1mph - Average wind speed in August:
4.8mph - Average wind speed in September:
4.5mph - Average wind speed in October:
4.8mph - Average wind speed in November:
5mph - Average wind speed in December:
5.2mph
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
Rochester, CA
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
Rochester, CA
- Average rainfall in January:
0.51" - Average rainfall in February:
0.98" - Average rainfall in March:
0.39" - Average rainfall in April:
0.47" - Average rainfall in May:
0.2" - Average rainfall in June:
0.04"
- Average rainfall in July:
0.16" - Average rainfall in August:
0.12" - Average rainfall in September:
0.08" - Average rainfall in October:
0.16" - Average rainfall in November:
0.51" - Average rainfall in December:
0.91"
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
Rochester, CA
- Average rainfall days in January:
4.6 days - Average rainfall days in February:
4.5 days - Average rainfall days in March:
6.3 days - Average rainfall days in April:
5.4 days - Average rainfall days in May:
3.2 days - Average rainfall days in June:
0.9 days
- Average rainfall days in July:
2.8 days - Average rainfall days in August:
1.9 days - Average rainfall days in September:
1.8 days - Average rainfall days in October:
2.1 days - Average rainfall days in November:
3.3 days - Average rainfall days in December:
5.5 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
Rochester, CA
- Average snowfall days in January:
0 days - Average snowfall days in February:
0.1 days - Average snowfall days in March:
0 days - Average snowfall days in April:
0 days - Average snowfall days in May:
0 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0 days - Average snowfall days in October:
0 days - Average snowfall days in November:
0 days - Average snowfall days in December:
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 / Average sunshine
Rochester, CA
- Average daylight in January:
10h and 1min - Average daylight in February:
11h and 0min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 1min - Average daylight in May:
14h and 0min - Average daylight in June:
14h and 2min
- Average daylight in July:
14h and 1min - Average daylight in August:
13h and 2min - Average daylight in September:
12h and 2min - Average daylight in October:
11h and 2min - Average daylight in November:
10h and 2min - Average daylight in December:
9h and 5min
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 January:
7h and 0min - Average sunshine in February:
6h and 5min - Average sunshine in March:
9h and 1min - Average sunshine in April:
11h and 2min - Average sunshine in May:
11h and 5min - Average sunshine in June:
12h and 0min
- Average sunshine in July:
12h and 1min - Average sunshine in August:
12h and 0min - Average sunshine in September:
10h and 4min - Average sunshine in October:
8h and 5min - Average sunshine in November:
7h and 2min - Average sunshine in December:
6h 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
Rochester, CA
- Average sunshine days in January:
25.8 days - Average sunshine days in February:
22.8 days - Average sunshine days in March:
24.6 days - Average sunshine days in April:
24 days - Average sunshine days in May:
26.2 days - Average sunshine days in June:
28.3 days
- Average sunshine days in July:
25.3 days - Average sunshine days in August:
26.8 days - Average sunshine days in September:
26 days - Average sunshine days in October:
27.4 days - Average sunshine days in November:
26 days - Average sunshine days in December:
24.4 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
Rochester, CA
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
Rochester, CA
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
Rochester, CA
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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