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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, is a freezing cold winter month in Petersham, Massachusetts, with an average temperature fluctuating between 17.1°F (-8.3°C) and 29.5°F (-1.4°C). January is the month that records the lowest temperatures, with averages ranging from a high of 29.5°F (-1.4°C) to a low of 17.1°F (-8.3°C). Weather in January »
Weather in February
The last month of the winter, February, is a cold month in Petersham, Massachusetts, with temperature in the range of an average low of 18°F (-7.8°C) and an average high of 32.5°F (0.3°C). The arrival of February denotes a barely perceptible change in the average high-temperatures to a wintry 32.5°F (0.3°C) from January's 29.5°F (-1.4°C). Weather in February »
Weather in March
The first month of the spring, March, is still a cold month in Petersham, Massachusetts, with an average temperature varying between 40.8°F (4.9°C) and 25.7°F (-3.5°C). March signals a minor shift in the average high-temperature, moving from February's cold 32.5°F (0.3°C) to a still wintry 40.8°F (4.9°C). Weather in March »
Weather in April
April is a cool spring month in Petersham, Massachusetts, with an average temperature ranging between min 36.1°F (2.3°C) and max 54.3°F (12.4°C). As Petersham enters April, the average high-temperature increases from the a cold 40.8°F (4.9°C) of March to a fresh 54.3°F (12.4°C). Weather in April »
Weather in May
May, the last month of the spring in Petersham, is an enjoyable month, with an average temperature varying between 66.7°F (19.3°C) and 46.6°F (8.1°C). In Petersham, the onset of May comes with an increased average high-temperature, moving from April's cool 54.3°F (12.4°C) to a refreshing 66.7°F (19.3°C). Weather in May »
Weather in June
The first month of the summer, June, is a warm month in Petersham, Massachusetts, with an average temperature fluctuating between 53.8°F (12.1°C) and 74.5°F (23.6°C). June marks a minor ascent in the average high-temperature, adjusting from May's comfortable 66.7°F (19.3°C) to a moderately hot 74.5°F (23.6°C). Weather in June »
Weather in July
July, like June, in Petersham, Massachusetts, is another warm summer month, with temperature in the range of an average high of 81°F (27.2°C) and an average low of 59.9°F (15.5°C). July proves to be the warmest month, recording an average peak temperature of 81°F (27.2°C) and a minimum temperature of 59.9°F (15.5°C). In July, the average heat index is computed to be a hot 86°F (30°C). Weather in July »
Weather in August
August, the last month of the summer in Petersham, is also a moderately hot month, with an average temperature fluctuating between 78.4°F (25.8°C) and 58.3°F (14.6°C). August experiences an average high-temperature of a still moderately hot 78.4°F (25.8°C), barely different from July's 81°F (27.2°C). Weather in August »
Weather in September
The first month of the autumn, September, is still a pleasant month in Petersham, Massachusetts, with temperature in the range of an average low of 52.2°F (11.2°C) and an average high of 71.2°F (21.8°C). With September's onset, the weather reveals a slight temperature decrease, transitioning from a moderately hot 78.4°F (25.8°C) in August to an agreeable 71.2°F (21.8°C). Weather in September »
Weather in October
October, like September, is a moderate autumn month in Petersham, Massachusetts, with an average temperature fluctuating between 58.3°F (14.6°C) and 43.3°F (6.3°C). Petersham's progression into October includes a drop in the average high-temperature, from an agreeable 71.2°F (21.8°C) in September to a moderate 58.3°F (14.6°C). Weather in October »
Weather in November
The last month of the autumn, November, is also a frosty month in Petersham, Massachusetts, with an average temperature ranging between min 32.9°F (0.5°C) and max 45.9°F (7.7°C). November brings a decrease in the average high-temperature, falling from October's moderate 58.3°F (14.6°C) to a frosty 45.9°F (7.7°C). Weather in November »
Weather in December
December, the first month of the winter in Petersham, is also a wintry month, with an average temperature ranging between min 24.1°F (-4.4°C) and max 35.1°F (1.7°C). The shift from November to December corresponds with a decrease in the average high-temperature, down to an icy 35.1°F (1.7°C) from a chilly 45.9°F (7.7°C). Weather in December »
[Resources]Frequently asked questions
What part of the year is the coldest in Petersham?
Petersham records the coldest temperatures in January, averaging a high of 29.5°F (-1.4°C) and a low of 17.1°F (-8.3°C).
How much does it rain in Petersham?
In Petersham, Massachusetts, during the entire year, the rain falls for 145 days and collects up to 28.03" (712mm) of precipitation.
When does it snow in Petersham?
Months with snowfall are January through May, October through December.
How many days does it snow in Petersham?
In Petersham, during the entire year, snow falls for 43.1 days and aggregates up to 25.75" (654mm) of snow.
What is the month with the lowest UV index in Petersham?
January through March, October through December, with an average maximum UV index of 2, are months with the lowest UV index in Petersham, Massachusetts.
What is the most humid month in Petersham?
February is the most humid month in Petersham, Massachusetts, with an average relative humidity of 83%.
What is the snowiest month in Petersham?
February is the month with the most snowfall. Snow falls for 10.5 days and accumulates 6.69" (170mm) of snow.
What is the month with the least sunshine in Petersham?
February has the least sunshine of the year in Petersham, with an average of 4.5h of sunshine.
When is Daylight Saving Time (DST) in Petersham?
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 in Petersham?
The least humid month in Petersham is April, with an average relative humidity of 73%.
When it does not snow in Petersham?
June through September are months without snowfall.
When are the longest days in Petersham?
The month with the longest days in Petersham is June, with an average of 15h and 12min of daylight.
What are the warmest months in Petersham?
July, with average temperatures reaching a high of 81°F (27.2°C) and a low of 59.9°F (15.5°C), is the warmest month in Petersham.
When is the highest UV index in Petersham?
The month with the highest UV index in Petersham is July, with an average maximum UV index of 6.
What month has the most sunshine in Petersham?
The month with the most sunshine in Petersham, Massachusetts, is August, with an average of 10.2h of sunshine.
What is the driest month in Petersham?
The month with the least rainfall in Petersham is September, when the rain falls for 11.9 days and typically collects 1.77" (45mm) of precipitation.
What is the wettest month in Petersham?
The month with the most rainfall in Petersham is October, when the rain falls for 13.5 days and typically aggregates up to 2.8" (71mm) of precipitation.
What is the month with the shortest days in Petersham?
The month with the shortest days is December, with an average of 9h and 6min of daylight.
Average temperature
Petersham, MA
The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (29.5°F).
The month with the highest average low temperature is July (59.9°F).
The coldest month (with the lowest average low temperature) is January (17.1°F).
Average pressure
Petersham, MA
- Average pressure in January:
30.02"Hg - Average pressure in February:
30"Hg - Average pressure in March:
30.04"Hg - Average pressure in April:
29.97"Hg - Average pressure in May:
30"Hg - Average pressure in June:
29.92"Hg
- Average pressure in July:
29.94"Hg - Average pressure in August:
29.97"Hg - Average pressure in September:
30.06"Hg - Average pressure in October:
30.01"Hg - Average pressure in November:
30.08"Hg - Average pressure in December:
30.04"Hg
The month with the highest atmospheric pressure is November (30.08"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed
Petersham, MA
- Average wind speed in January:
8.1mph - Average wind speed in February:
8.1mph - Average wind speed in March:
8.1mph - Average wind speed in April:
7.8mph - Average wind speed in May:
6.5mph - Average wind speed in June:
5.8mph
- Average wind speed in July:
5.3mph - Average wind speed in August:
5.2mph - Average wind speed in September:
5.6mph - Average wind speed in October:
6.8mph - Average wind speed in November:
7.3mph - Average wind speed in December:
7.8mph
The windiest months (with the highest average wind speed) are January, February and March (8.1mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).
Average humidity
Petersham, MA
The month with the highest relative humidity is February (83%).
The month with the lowest relative humidity is April (73%).
Average rainfall
Petersham, MA
- Average rainfall in January:
2.2" - Average rainfall in February:
2.17" - Average rainfall in March:
2.36" - Average rainfall in April:
2.4" - Average rainfall in May:
2.24" - Average rainfall in June:
2.4"
The wettest month (with the highest rainfall) is October (2.8").
The driest month (with the least rainfall) is September (1.77").
Average rainfall days
Petersham, MA
- Average rainfall days in January:
7.4 days - Average rainfall days in February:
7.8 days - Average rainfall days in March:
10.6 days - Average rainfall days in April:
14.3 days - Average rainfall days in May:
15.6 days - Average rainfall days in June:
15 days
- Average rainfall days in July:
14.3 days - Average rainfall days in August:
14.2 days - Average rainfall days in September:
11.9 days - Average rainfall days in October:
13.5 days - Average rainfall days in November:
10.2 days - Average rainfall days in December:
10.2 days
The month with the highest number of rainy days is May (15.6 days).
The month with the least rainy days is January (7.4 days).
Average snowfall
Petersham, MA
- Average snowfall in January:
5.67" - Average snowfall in February:
6.69" - Average snowfall in March:
4.69" - Average snowfall in April:
1.18" - Average snowfall in May:
0.35" - Average snowfall in June:
0"
The month with the highest snowfall is February (6.69").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Petersham, MA
- Average snowfall days in January:
9.9 days - Average snowfall days in February:
10.5 days - Average snowfall days in March:
9 days - Average snowfall days in April:
1.8 days - Average snowfall days in May:
0.1 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:
0.5 days - Average snowfall days in November:
3.2 days - Average snowfall days in December:
8.1 days
The month with the highest number of snowfall days is February (10.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Petersham, MA
- Average daylight in January:
9h and 3min - 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 4min - Average daylight in June:
15h and 1min
- Average daylight in July:
14h and 5min - Average daylight in August:
13h and 5min - Average daylight in September:
12h and 3min - Average daylight in October:
11h and 0min - Average daylight in November:
9h and 5min - Average daylight in December:
9h and 1min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in January:
4h and 5min - Average sunshine in February:
4h and 3min - Average sunshine in March:
5h and 5min - Average sunshine in April:
8h and 0min - Average sunshine in May:
8h and 2min - Average sunshine in June:
9h and 1min
- Average sunshine in July:
10h and 1min - Average sunshine in August:
10h and 1min - Average sunshine in September:
8h and 2min - Average sunshine in October:
5h and 4min - Average sunshine in November:
5h and 3min - Average sunshine in December:
4h and 4min
The month with the most sunshine is August (Average sunshine: 10h and 12min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).
Average sunshine days
Petersham, MA
- Average sunshine days in January:
16.8 days - Average sunshine days in February:
13.3 days - Average sunshine days in March:
13.9 days - Average sunshine days in April:
13.3 days - Average sunshine days in May:
13.3 days - Average sunshine days in June:
13 days
- Average sunshine days in July:
15 days - Average sunshine days in August:
14.7 days - Average sunshine days in September:
15.2 days - Average sunshine days in October:
14.8 days - Average sunshine days in November:
17.1 days - Average sunshine days in December:
15.8 days
The month with the most sunshine days is November (17.1 days).
The month with the least sunshine days is June (13 days).
Average UV index
Petersham, MA
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).
Average cloud cover
Petersham, MA
The months with the most cloud cover are February and March (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 35).
Average visibility
Petersham, MA
The month with the highest visibility is April (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October, November and December (5mi).
Petersham, Massachusetts, USA
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