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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
- Average snowfall days
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
Weather in January
January, like December, in Rochester, Pennsylvania, is an icy winter month, with an average temperature varying between 19.8°F (-6.8°C) and 32.5°F (0.3°C). In Rochester, the month of January registers the lowest temperatures, averaging 32.5°F (0.3°C) at the peak and 19.8°F (-6.8°C) at the lowest. Weather in January »
Weather in February
February, the last month of the winter in Rochester, is another cold month, with temperature in the range of an average high of 36.9°F (2.7°C) and an average low of 21.9°F (-5.6°C). Upon the onset of February, Rochester witnesses an average high-temperature of a still wintry 36.9°F (2.7°C), showing a close resemblance to the prior month. Weather in February »
Weather in March
The first month of the spring, March, is a frosty month in Rochester, Pennsylvania, with an average temperature ranging between min 30.2°F (-1°C) and max 46.9°F (8.3°C). A rise in the average high-temperature is observed during March, moving from a cold 36.9°F (2.7°C) in February to a frosty 46.9°F (8.3°C). Weather in March »
Weather in April
April in Rochester, Pennsylvania, is a refreshing spring month, with an average temperature ranging between min 39.9°F (4.4°C) and max 59.5°F (15.3°C). An escalation in the average high-temperature is seen with the onset of April, moving from a chilly 46.9°F (8.3°C) in March to a mild 59.5°F (15.3°C). Weather in April »
Weather in May
The last month of the spring, May, is an agreeable month in Rochester, Pennsylvania, with an average temperature ranging between max 71.2°F (21.8°C) and min 50.2°F (10.1°C). The transition to May introduces an increase in the average high-temperature, shifting from a mild 59.5°F (15.3°C) in April to a pleasant 71.2°F (21.8°C). Weather in May »
Weather in June
June, the first month of the summer in Rochester, is a moderately hot month, with an average temperature varying between 56.8°F (13.8°C) and 78.3°F (25.7°C). With the beginning of June, Rochester's average high-temperature sees a minor increase, transitioning from an agreeable 71.2°F (21.8°C) in May to a warm 78.3°F (25.7°C). Weather in June »
Weather in July
July, like June, in Rochester, Pennsylvania, is another warm summer month, with temperature in the range of an average low of 61.3°F (16.3°C) and an average high of 82.8°F (28.2°C). July is the warmest month, with an average high-temperature of 82.8°F (28.2°C) and an average low-temperature of 61.3°F (16.3°C). For July, the heat index is calculated to be a tropical 89.6°F (32°C). Weather in July »
Weather in August
August, the last month of the summer in Rochester, is also a moderately hot month, with an average temperature fluctuating between 59.5°F (15.3°C) and 81.1°F (27.3°C). As Rochester transitions from July to August, the average high-temperatures adjust to a still warm 81.1°F (27.3°C), nearly the same as the previous 82.8°F (28.2°C). Weather in August »
Weather in September
The first month of the autumn, September, is also a moderately hot month in Rochester, Pennsylvania, with temperature in the range of an average low of 54.7°F (12.6°C) and an average high of 74.7°F (23.7°C). Rochester's progression into September involves a minor drop in the average high-temperature, slightly receding from 81.1°F (27.3°C) in August to a still warm 74.7°F (23.7°C). Weather in September »
Weather in October
October, the same as September, is another enjoyable autumn month in Rochester, Pennsylvania, with temperature in the range of an average high of 61.3°F (16.3°C) and an average low of 45.1°F (7.3°C). As September shifts into October, a slight alteration in temperatures is observed, with average highs reducing from a moderately hot 74.7°F (23.7°C) to a refreshing 61.3°F (16.3°C). Weather in October »
Weather in November
November, the last month of the autumn in Rochester, is also a frosty month, with an average temperature fluctuating between 48.6°F (9.2°C) and 33.4°F (0.8°C). The arrival of November indicates a decrease in the average high-temperature, moving from an enjoyable 61.3°F (16.3°C) in October to a frosty 48.6°F (9.2°C). Weather in November »
Weather in December
The first month of the winter, December, is also a wintry month in Rochester, Pennsylvania, with temperature in the range of an average low of 27.5°F (-2.5°C) and an average high of 38.5°F (3.6°C). With December's arrival, Rochester's weather changes as the average high-temperature falls from a chilly 48.6°F (9.2°C) in November to a wintry 38.5°F (3.6°C). Weather in December »
Updated: Aug 6, 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
What time of the year is the coldest?
Rochester's coldest month, January, registers temperatures that range from a high of 32.5°F (0.3°C) to a low of 19.8°F (-6.8°C).
How many days does it rain in Rochester?
In Rochester, during the entire year, the rain falls for 168.7 days and collects up to 21.22" (539mm) of precipitation.
When does it snow?
January through April, October through December are months with snowfall.
When does it snow the most?
January is the month with the most snowfall. Snow falls for 17.3 days and accumulates 3.11" (79mm) of snow.
How many days does it snow?
Throughout the year, there are 60.6 snowfall days, and 11.93" (303mm) of snow is accumulated.
What is the month with the least sunshine?
With an average of 2.9h of sunshine, January has the least sunshine of the year.
What is the most humid month?
February is the most humid month, with an average relative humidity of 86%.
When is Daylight Saving Time (DST)?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from EST to EDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from EDT to EST.
What is the least humid month?
April, July and August, with an average relative humidity of 77%, are the least humid months.
When it does not snow?
In Rochester, snow does not fall in May through September.
What is the rainiest month?
June is the month with the most rainfall. Rain falls for 16.1 days and accumulates 2.32" (59mm) of precipitation.
When are the longest days?
June has the longest days of the year, with an average of 15h and 0min of daylight.
What are the months with the highest UV index?
June and July, with an average maximum UV index of 6, are months with the highest UV index.
What are the warmest months?
During the warmest month in Rochester, July, temperatures average a high of 82.8°F (28.2°C) and a low of 61.3°F (16.3°C).
What month has the most sunshine?
August has the most sunshine of the year, with an average of 10.2h of sunshine.
What is the driest month?
November is the month with the least rainfall. Rain falls for 10.8 days and accumulates 1.1" (28mm) of precipitation.
What is the month with the shortest days?
The month with the shortest days is December, with an average of 9h and 18min of daylight.
When is the lowest UV index?
The month with the lowest UV index is December, with an average maximum UV index of 1.
Average temperature
Rochester, PA
The warmest month (with the highest average high temperature) is July (82.8°F).
The month with the lowest average high temperature is January (32.5°F).
The month with the highest average low temperature is July (61.3°F).
The coldest month (with the lowest average low temperature) is January (19.8°F).
Average pressure
Rochester, PA
- Average pressure in January:
30.11"Hg - Average pressure in February:
30.08"Hg - Average pressure in March:
30.09"Hg - Average pressure in April:
29.97"Hg - Average pressure in May:
29.99"Hg - Average pressure in June:
29.94"Hg
- Average pressure in July:
29.98"Hg - Average pressure in August:
29.99"Hg - Average pressure in September:
30.05"Hg - Average pressure in October:
30.03"Hg - Average pressure in November:
30.13"Hg - Average pressure in December:
30.1"Hg
The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed
Rochester, PA
- Average wind speed in January:
8.1mph - Average wind speed in February:
7.6mph - Average wind speed in March:
7.3mph - Average wind speed in April:
7.5mph - Average wind speed in May:
6.1mph - Average wind speed in June:
5.7mph
- Average wind speed in July:
4.8mph - Average wind speed in August:
4.8mph - Average wind speed in September:
5.3mph - Average wind speed in October:
6.5mph - Average wind speed in November:
7mph - Average wind speed in December:
7.4mph
The windiest month (with the highest average wind speed) is January (8.1mph).
The calmest months (with the lowest average wind speed) are July and August (4.8mph).
Average humidity
Rochester, PA
The month with the highest relative humidity is February (86%).
The months with the lowest relative humidity are April, July and August (77%).
Average rainfall
Rochester, PA
- Average rainfall in January:
1.38" - Average rainfall in February:
1.38" - Average rainfall in March:
1.5" - Average rainfall in April:
2.2" - Average rainfall in May:
2.2" - Average rainfall in June:
2.32"
- Average rainfall in July:
2.09" - Average rainfall in August:
1.65" - Average rainfall in September:
1.77" - Average rainfall in October:
2.05" - Average rainfall in November:
1.1" - Average rainfall in December:
1.57"
The wettest month (with the highest rainfall) is June (2.32").
The driest month (with the least rainfall) is November (1.1").
Average rainfall days
Rochester, PA
- Average rainfall days in January:
10 days - Average rainfall days in February:
10.5 days - Average rainfall days in March:
13.3 days - Average rainfall days in April:
16.6 days - Average rainfall days in May:
18.1 days - Average rainfall days in June:
16.1 days
- Average rainfall days in July:
17.2 days - Average rainfall days in August:
16.3 days - Average rainfall days in September:
13.3 days - Average rainfall days in October:
15 days - Average rainfall days in November:
10.8 days - Average rainfall days in December:
11.5 days
The month with the highest number of rainy days is May (18.1 days).
The month with the least rainy days is January (10 days).
Average snowfall
Rochester, PA
The month with the highest snowfall is January (3.11").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days
Rochester, PA
- Average snowfall days in January:
17.3 days - Average snowfall days in February:
14.7 days - Average snowfall days in March:
8.1 days - Average snowfall days in April:
2.5 days - Average snowfall days in May:
0.2 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:
0.2 days - Average snowfall days in November:
5.6 days - Average snowfall days in December:
12 days
The month with the highest number of snowfall days is January (17.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Rochester, PA
- Average daylight in January:
9h and 4min - Average daylight in February:
10h and 4min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 2min - Average daylight in May:
14h and 3min - Average daylight in June:
15h and 0min
- Average daylight in July:
14h and 4min - Average daylight in August:
13h and 4min - Average daylight in September:
12h and 3min - Average daylight in October:
11h and 1min - Average daylight in November:
9h and 5min - Average daylight in December:
9h and 2min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in January:
2h and 5min - Average sunshine in February:
3h and 3min - Average sunshine in March:
5h and 2min - Average sunshine in April:
7h and 2min - Average sunshine in May:
8h and 5min - Average sunshine in June:
9h and 2min
- Average sunshine in July:
10h and 0min - Average sunshine in August:
10h and 1min - Average sunshine in September:
8h and 2min - Average sunshine in October:
5h and 1min - Average sunshine in November:
4h and 5min - Average sunshine in December:
3h and 2min
The month with the most sunshine is August (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 2h and 54min).
Average sunshine days
Rochester, PA
- Average sunshine days in January:
9.7 days - Average sunshine days in February:
8.3 days - Average sunshine days in March:
10.9 days - Average sunshine days in April:
10.8 days - Average sunshine days in May:
10.5 days - Average sunshine days in June:
11.3 days
- Average sunshine days in July:
11.7 days - Average sunshine days in August:
12.4 days - Average sunshine days in September:
14.1 days - Average sunshine days in October:
13 days - Average sunshine days in November:
15.1 days - Average sunshine days in December:
10.6 days
The month with the most sunshine days is November (15.1 days).
The month with the least sunshine days is February (8.3 days).
Average UV index
Rochester, PA
The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover
Rochester, PA
The month with the most cloud cover is January (Cloud cover 70).
The month with the least cloud cover is August (Cloud cover 34).
Average visibility
Rochester, PA
The month with the highest visibility is April (6mi).
The months with the lowest visibility are January and February (4mi).
Rochester, Pennsylvania, USA
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