Expand
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, the same as December, in Petersham, Massachusetts, is a freezing cold winter month, with temperature in the range of an average low of 17.1°F (-8.3°C) and an average high of 29.5°F (-1.4°C). January, with its high-temperature average of 29.5°F (-1.4°C) and a low-temperature average of 17.1°F (-8.3°C), is the coldest month. Weather in January »
Weather in February
The last month of the winter, February, is a wintry month in Petersham, Massachusetts, with an average temperature ranging between max 32.5°F (0.3°C) and min 18°F (-7.8°C). As Petersham transitions into February, the average high-temperature stands at a cold 32.5°F (0.3°C), offering little variation from the preceding month. Weather in February »
Weather in March
March, the first month of the spring in Petersham, is also an icy month, with an average temperature varying between 25.7°F (-3.5°C) and 40.8°F (4.9°C). March witnesses a subtle temperature ascent, adjusting from 32.5°F (0.3°C) in February to a still cold 40.8°F (4.9°C). Weather in March »
Weather in April
April is a fresh spring month in Petersham, Massachusetts, with an average temperature varying between 54.3°F (12.4°C) and 36.1°F (2.3°C). Petersham's April weather brings a rise in high-temperatures, moving from a cold 40.8°F (4.9°C) in March to a cool 54.3°F (12.4°C). Weather in April »
Weather in May
The last month of the spring, May, is an enjoyable month in Petersham, Massachusetts, with temperature in the range of an average low of 46.6°F (8.1°C) and an average high of 66.7°F (19.3°C). May shows a rise in the average high-temperature, moving from April's fresh 54.3°F (12.4°C) to an enjoyable 66.7°F (19.3°C). Weather in May »
Weather in June
June, the first month of the summer in Petersham, is a moderately hot month, with temperature in the range of an average low of 53.8°F (12.1°C) and an average high of 74.5°F (23.6°C). June's arrival signals a modest temperature shift, moving from a refreshing 66.7°F (19.3°C) in May to a warm 74.5°F (23.6°C). Weather in June »
Weather in July
July, the same as June, is a moderately hot summer month in Petersham, Massachusetts, with temperature in the range of an average low of 59.9°F (15.5°C) and an average high of 81°F (27.2°C). Petersham, Massachusetts, records the warmest temperatures in July, averaging a high of 81°F (27.2°C) and a low of 59.9°F (15.5°C). During July, the heat index is evaluated at a hot 86°F (30°C). Weather in July »
Weather in August
August, the last month of the summer in Petersham, is another warm month, with an average temperature varying between 58.3°F (14.6°C) and 78.4°F (25.8°C). August experiences an average high-temperature of a still warm 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 high of 71.2°F (21.8°C) and an average low of 52.2°F (11.2°C). With the arrival of September, Petersham experiences a modest decline in average high-temperatures, 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, the same as September, in Petersham, Massachusetts, is another mild autumn month, with temperature in the range of an average high of 58.3°F (14.6°C) and an average low of 43.3°F (6.3°C). The commencement of October involves a temperature shift, with the average high-temperature dropping from a pleasant 71.2°F (21.8°C) in September to a moderate 58.3°F (14.6°C). Weather in October »
Weather in November
November, the last month of the autumn in Petersham, is another chilly month, with an average temperature ranging between max 45.9°F (7.7°C) and min 32.9°F (0.5°C). November comes with a drop 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 an icy month, with an average temperature varying between 24.1°F (-4.4°C) and 35.1°F (1.7°C). As November transitions into December, Petersham sees a drop in the average high-temperature, transitioning from a chilly 45.9°F (7.7°C) to a wintry 35.1°F (1.7°C). Weather in December »
Updated: Aug 24, 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 is the coldest month?
January, recording an average high temperature of 29.5°F (-1.4°C) and a low temperature of 17.1°F (-8.3°C), is Petersham's coldest month.
How many days does it rain?
Throughout the year, there are 145 rainfall days, and 28.03" (712mm) of precipitation is accumulated.
When does it snow?
January through May, October through December are months with snowfall.
How much 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.
What is the most humid month in Petersham?
February is the most humid month, with an average relative humidity of 83%.
What is the snowiest month?
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?
The month with the least sunshine is February, with an average of 4.5h of sunshine.
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?
The least humid month is April, with an average relative humidity of 73%.
When it does not snow in Petersham?
June through September are months without snowfall in Petersham.
When are the longest days?
June has the longest days of the year, with an average of 15h and 12min of daylight.
What month is the hottest?
July is the warmest month of the year, registering average temperatures as high as 81°F (27.2°C) and as low as 59.9°F (15.5°C).
When is the highest UV index?
July is the month with the highest UV index, with an average maximum UV index of 6.
What month has the most sunshine?
With an average of 10.2h of sunshine, August has the most sunshine of the year.
What is the driest month?
September is the month with the least rainfall. Rain falls for 11.9 days and accumulates 1.77" (45mm) of precipitation.
What is the wettest month?
The month with the most rainfall 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?
With an average of 9h and 6min of daylight, December has the shortest days of the year.
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
Weather forecast for your location
1. Click Locate me button
2. Allow the app to use your location
2. Allow the app to use your location