Climate and monthly weather forecastSouthwick, MA
Climate and monthly weather forecast
Weather in January
January, the same as December, in Southwick, Massachusetts, is another subzero cold winter month, with temperature in the range of an average high of 30.9°F (-0.6°C) and an average low of 18.3°F (-7.6°C). January, with average temperatures reaching a high of 30.9°F (-0.6°C) and a low of 18.3°F (-7.6°C), is the coldest month. Weather in January »Weather in February
February, the last month of the winter in Southwick, is a cold month, with an average temperature fluctuating between 34.2°F (1.2°C) and 19.8°F (-6.8°C). With the arrival of February, Southwick's average high-temperature registers at a wintry 34.2°F (1.2°C), indicating a subtle variation from the previous month. Weather in February »Weather in March
The first month of the spring, March, is also a wintry month in Southwick, Massachusetts, with an average temperature ranging between max 42.4°F (5.8°C) and min 27.1°F (-2.7°C). As February gives way to March, the average high-temperature displays a slight ascent, adjusting from a wintry 34.2°F (1.2°C) to a still icy 42.4°F (5.8°C). Weather in March »Weather in April
April in Southwick, Massachusetts, is a mild spring month, with temperature in the range of an average low of 37.6°F (3.1°C) and an average high of 55.9°F (13.3°C). April signals a shift in the average high-temperature, moving from March's wintry 42.4°F (5.8°C) to a refreshing 55.9°F (13.3°C). Weather in April »Weather in May
May, the last month of the spring in Southwick, is a refreshing month, with an average temperature ranging between max 67.6°F (19.8°C) and min 47.5°F (8.6°C). May's arrival brings a temperature shift, moving from a mild 55.9°F (13.3°C) in April to an enjoyable 67.6°F (19.8°C). Weather in May »Weather in June
The first month of the summer, June, is a moderately hot month in Southwick, Massachusetts, with an average temperature fluctuating between 55°F (12.8°C) and 75.4°F (24.1°C). The shift from May to June is marked by a slight increase in the average high-temperature, moving from a refreshing 67.6°F (19.8°C) to a moderately hot 75.4°F (24.1°C). Weather in June »Weather in July
July, the same as June, is a moderately hot summer month in Southwick, Massachusetts, with an average temperature ranging between max 81.5°F (27.5°C) and min 61.2°F (16.2°C). July, with an average high of 81.5°F (27.5°C) and a low of 61.2°F (16.2°C), signifies the warmest month of the year. July's heat index is computed to be a tropical 86°F (30°C). Weather in July »Weather in August
The last month of the summer, August, is another warm month in Southwick, Massachusetts, with an average temperature fluctuating between 79.7°F (26.5°C) and 59.5°F (15.3°C). August denotes a minimal variation in the average high-temperature to a still warm 79.7°F (26.5°C) from July's 81.5°F (27.5°C). Weather in August »Weather in September
The first month of the autumn, September, is still a pleasant month in Southwick, Massachusetts, with an average temperature ranging between min 52.9°F (11.6°C) and max 72.3°F (22.4°C). Transition into September subtly marks a drop in the average high-temperature, moderately moving from a warm 79.7°F (26.5°C) in August to an agreeable 72.3°F (22.4°C). Weather in September »Weather in October
October, like September, is another mild autumn month in Southwick, Massachusetts, with an average temperature varying between 59.2°F (15.1°C) and 44.1°F (6.7°C). The transition into October indicates a reduction in the average high-temperature, down to a moderate 59.2°F (15.1°C) from September's agreeable 72.3°F (22.4°C). Weather in October »Weather in November
The last month of the autumn, November, is also a frosty month in Southwick, Massachusetts, with temperature in the range of an average high of 46.8°F (8.2°C) and an average low of 33.4°F (0.8°C). In November, the average high-temperature goes from a moderate 59.2°F (15.1°C) in October to a frosty 46.8°F (8.2°C). Weather in November »Weather in December
The first month of the winter, December, is also a wintry month in Southwick, Massachusetts, with an average temperature varying between 25.5°F (-3.6°C) and 36.7°F (2.6°C). The average high-temperature drops in December, from November's chilly 46.8°F (8.2°C) to a cold 36.7°F (2.6°C). Weather in December »Updated: Jun 4, 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
January brings the lowest temperatures in Southwick, with an average high of 30.9°F (-0.6°C) and an average low of 18.3°F (-7.6°C).
In Southwick, during the entire year, the rain falls for 165.4 days and collects up to 34.45" (875mm) of precipitation.
January through May, October through December are months with snowfall.
Throughout the year, there are 37.5 snowfall days, and 21.26" (540mm) of snow is accumulated.
The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 2.
February is the most humid month, with an average relative humidity of 82%.
The month with the most snowfall is February, when snow falls for 9.8 days and typically aggregates up to 5.59" (142mm) of snow.
The month with the least sunshine is February, with an average of 4.3h of sunshine.
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.
With an average relative humidity of 73%, April is the least humid month.
June through September are months without snowfall.
The month with the longest days is June, with an average of 15h and 12min of daylight.
With an average maximum UV index of 6, June is the month with the highest UV index.
In Southwick, the average temperatures in July are the highest, with a peak at 81.5°F (27.5°C) and a low of 61.2°F (16.2°C).
July and August, with an average of 9.9h of sunshine, are months with the most sunshine.
The month with the least rainfall is September, when the rain falls for 13.5 days and typically collects 2.17" (55mm) of precipitation.
The month with the most rainfall is December, when the rain falls for 10.9 days and typically aggregates up to 3.43" (87mm) of precipitation.
With an average of 9h and 12min of daylight, December has the shortest days of the year.
Average temperature
Southwick, MA
The warmest month (with the highest average high temperature) is July (81.5°F).
The month with the lowest average high temperature is January (30.9°F).
The month with the highest average low temperature is July (61.2°F).
The coldest month (with the lowest average low temperature) is January (18.3°F).
Average pressure
Southwick, MA
- Average pressure in January:
30.03"Hg - Average pressure in February:
30.01"Hg - Average pressure in March:
30.04"Hg - Average pressure in April:
29.97"Hg - Average pressure in May:
30.01"Hg - Average pressure in June:
29.93"Hg
- Average pressure in July:
29.95"Hg - Average pressure in August:
29.98"Hg - Average pressure in September:
30.06"Hg - Average pressure in October:
30.01"Hg - Average pressure in November:
30.09"Hg - Average pressure in December:
30.05"Hg
The month with the highest atmospheric pressure is November (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed
Southwick, MA
- Average wind speed in January:
8.4mph - Average wind speed in February:
8.3mph - Average wind speed in March:
8.3mph - Average wind speed in April:
7.9mph - Average wind speed in May:
6.5mph - Average wind speed in June:
5.8mph
- Average wind speed in July:
5.2mph - Average wind speed in August:
5.2mph - Average wind speed in September:
5.7mph - Average wind speed in October:
6.8mph - Average wind speed in November:
7.4mph - Average wind speed in December:
8mph
The windiest month (with the highest average wind speed) is January (8.4mph).
The calmest months (with the lowest average wind speed) are July and August (5.2mph).
Average humidity
Southwick, MA
The month with the highest relative humidity is February (82%).
The month with the lowest relative humidity is April (73%).
Average rainfall
Southwick, MA
- Average rainfall in January:
2.28" - Average rainfall in February:
2.36" - Average rainfall in March:
2.56" - Average rainfall in April:
2.87" - Average rainfall in May:
3.07" - Average rainfall in June:
3.11"
- Average rainfall in July:
3.35" - Average rainfall in August:
2.95" - Average rainfall in September:
2.17" - Average rainfall in October:
3.35" - Average rainfall in November:
2.95" - Average rainfall in December:
3.43"
The wettest month (with the highest rainfall) is December (3.43").
The driest month (with the least rainfall) is September (2.17").
Average rainfall days
Southwick, MA
- Average rainfall days in January:
7.8 days - Average rainfall days in February:
8.8 days - Average rainfall days in March:
12.7 days - Average rainfall days in April:
16.1 days - Average rainfall days in May:
17.7 days - Average rainfall days in June:
17.3 days
- Average rainfall days in July:
17.9 days - Average rainfall days in August:
16.8 days - Average rainfall days in September:
13.5 days - Average rainfall days in October:
14.5 days - Average rainfall days in November:
11.4 days - Average rainfall days in December:
10.9 days
The month with the highest number of rainy days is July (17.9 days).
The month with the least rainy days is January (7.8 days).
Average snowfall
Southwick, MA
- Average snowfall in January:
4.65" - Average snowfall in February:
5.59" - Average snowfall in March:
4.57" - Average snowfall in April:
0.83" - Average snowfall in May:
0.2" - Average snowfall in June:
0"
The month with the highest snowfall is February (5.59").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Southwick, MA
- Average snowfall days in January:
9.1 days - Average snowfall days in February:
9.8 days - Average snowfall days in March:
8.3 days - Average snowfall days in April:
1 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:
1.9 days - Average snowfall days in December:
6.8 days
The month with the highest number of snowfall days is February (9.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Southwick, MA
- Average daylight in January:
9h and 30min - Average daylight in February:
10h and 36min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 24min - Average daylight in May:
14h and 36min - Average daylight in June:
15h and 12min
- Average daylight in July:
14h and 54min - Average daylight in August:
13h and 48min - Average daylight in September:
12h and 30min - Average daylight in October:
11h and 6min - Average daylight in November:
9h and 48min - Average daylight in December:
9h and 12min
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 12min).
- Average sunshine in January:
4h and 42min - Average sunshine in February:
4h and 18min - Average sunshine in March:
5h and 42min - Average sunshine in April:
7h and 42min - Average sunshine in May:
8h and 0min - Average sunshine in June:
9h and 0min
- Average sunshine in July:
9h and 54min - Average sunshine in August:
9h and 54min - Average sunshine in September:
8h and 18min - Average sunshine in October:
5h and 24min - Average sunshine in November:
5h and 18min - Average sunshine in December:
4h and 30min
The months with the most sunshine are July and August (Average sunshine: 9h and 54min).
The month with the least sunshine is February (Average sunshine: 4h and 18min).
Average sunshine days
Southwick, MA
- Average sunshine days in January:
16.6 days - Average sunshine days in February:
12.9 days - Average sunshine days in March:
12.5 days - Average sunshine days in April:
12.1 days - Average sunshine days in May:
11.3 days - Average sunshine days in June:
10.9 days
- Average sunshine days in July:
11.5 days - Average sunshine days in August:
11.8 days - Average sunshine days in September:
14.2 days - Average sunshine days in October:
14.2 days - Average sunshine days in November:
16.4 days - Average sunshine days in December:
14.7 days
The month with the most sunshine days is January (16.6 days).
The month with the least sunshine days is June (10.9 days).
Average UV index
Southwick, MA
The month with the highest UV index is June (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover
Southwick, MA
The month with the most cloud cover is February (Cloud cover 53).
The month with the least cloud cover is August (Cloud cover 37).
Average visibility
Southwick, MA
The months with the highest visibility are April, November and December (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September and October (5mi).
