April weather forecastPetersham, MA
April
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).Temperature
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). During the month of April, Petersham's nighttime temperature lowers to an average of 36.1°F (2.3°C).Humidity
April is the least humid month, with an average relative humidity of 73%.Rainfall
In April, the rain falls for 14.3 days. Throughout April, 2.4" (61mm) of precipitation is accumulated. In Petersham, during the entire year, the rain falls for 145 days and collects up to 28.03" (712mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. In Petersham, during April, snow falls for 1.8 days and regularly aggregates up to 1.18" (30mm) of snow. Throughout the year, there are 43.1 snowfall days, and 25.75" (654mm) of snow is accumulated.Daylight
In April, the average length of the day is 13h and 24min.On the first day of the month, sunrise is at 6:29 am and sunset at 7:15 pm. On the last day of April, sunrise is at 5:43 am and sunset at 7:47 pm EDT.
Sunshine
In April, the average sunshine is 8h.UV index
The average daily maximum UV index in April in Petersham, Massachusetts, is 3. A UV Index value of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for average individuals.Note: A maximum UV index of 3 in April translates into the following recommendations:
Guard yourself - Precautionary measures against sun damage are advocated. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes. Be informed! The Sun's UV radiation can be nearly doubled due to the reflection from snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
Petersham, MA
- Average high temperature in April: 54.3°F
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).
- Average low temperature in April: 36.1°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 in April
Petersham, MA
- Average pressure in April: 29.97"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 in April
Petersham, MA
- Average wind speed in April: 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 in April
Petersham, MA
- Average humidity in April: 73%
The month with the highest relative humidity is February (83%).
The month with the lowest relative humidity is April (73%).
Average rainfall in April
Petersham, MA
- Average rainfall in April: 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 in April
Petersham, MA
- Average rainfall days in April: 14.3 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 in April
Petersham, MA
- Average snowfall in April: 1.18"
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 in April
Petersham, MA
- Average snowfall days in April: 1.8 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 in April /
Average sunshine in April
Petersham, MA
- Average daylight in April: 13h and 24min
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 April: 8h and 0min
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 in April
Petersham, MA
- Average sunshine days in April: 13.3 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 in April
Petersham, MA
- Average UV index in April: 3
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 in April
Petersham, MA
- Average cloud cover in April: 47
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 in April
Petersham, MA
- Average visibility in April: 6mi
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).





