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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
Climate and monthly weather forecast
Weather in January
January, the same as December, is another cold winter month in Mendon, Massachusetts, with temperature in the range of an average high of 32.5°F (0.3°C) and an average low of 20.5°F (-6.4°C). Temperature records mark January as the coldest month, with highs averaging 32.5°F (0.3°C) and lows at 20.5°F (-6.4°C). Weather in January »
Weather in February
The last month of the winter, February, is also an icy month in Mendon, Massachusetts, with temperature in the range of an average high of 35.8°F (2.1°C) and an average low of 21.6°F (-5.8°C). Mendon's average high-temperature in February is a still wintry 35.8°F (2.1°C), indicating a subtle variation from January. Weather in February »
Weather in March
The first month of the spring, March, is a frosty month in Mendon, Massachusetts, with an average temperature fluctuating between 43.3°F (6.3°C) and 28.9°F (-1.7°C). The shift into March brings a slight increase in the average high-temperature, moving from a cold 35.8°F (2.1°C) in February to a chilly 43.3°F (6.3°C). Weather in March »
Weather in April
April is a refreshing spring month in Mendon, Massachusetts, with temperature in the range of an average high of 55.9°F (13.3°C) and an average low of 39°F (3.9°C). With the arrival of April, the average high-temperature transitions from a frosty 43.3°F (6.3°C) in March to a mild 55.9°F (13.3°C). Weather in April »
Weather in May
May, the last month of the spring in Mendon, is a refreshing month, with temperature in the range of an average low of 48.6°F (9.2°C) and an average high of 67.3°F (19.6°C). With the onset of May, Mendon's weather sees a temperature rise, transitioning from a mild 55.9°F (13.3°C) in April to an enjoyable 67.3°F (19.6°C). Weather in May »
Weather in June
June, the first month of the summer in Mendon, is a warm month, with an average temperature varying between 74.5°F (23.6°C) and 55.6°F (13.1°C). The shift into June is characterized by a subtle rise in the average high-temperature, transitioning from May's comfortable 67.3°F (19.6°C) to a warm 74.5°F (23.6°C). Weather in June »
Weather in July
July, the same as June, is another warm summer month in Mendon, Massachusetts, with an average temperature ranging between max 81.7°F (27.6°C) and min 62.6°F (17°C). With average high and low temperatures of 81.7°F (27.6°C) and 62.6°F (17°C) respectively, July is Mendon's warmest month. Throughout July, the heat index is appraised at a tropical 87.8°F (31°C). Weather in July »
Weather in August
August, the last month of the summer in Mendon, is also a moderately hot month, with an average temperature fluctuating between 61.2°F (16.2°C) and 80.1°F (26.7°C). Mendon's weather in August displays an average high-temperature of a still warm 80.1°F (26.7°C), showing minor disparity from July's 81.7°F (27.6°C). Weather in August »
Weather in September
The first month of the autumn, September, is also an agreeable month in Mendon, Massachusetts, with an average temperature fluctuating between 54.5°F (12.5°C) and 72.7°F (22.6°C). September witnesses a gentle descent in average high-temperature, descending from August's warm 80.1°F (26.7°C) to a pleasant 72.7°F (22.6°C). Weather in September »
Weather in October
October, the same as September, in Mendon, Massachusetts, is a moderate autumn month, with an average temperature varying between 59.9°F (15.5°C) and 45.7°F (7.6°C). As October arrives, Mendon's weather displays a decrease in high-temperatures, transitioning from September's pleasant 72.7°F (22.6°C) to a refreshing 59.9°F (15.5°C). Weather in October »
Weather in November
November, the last month of the autumn in Mendon, is another chilly month, with an average temperature ranging between max 48.7°F (9.3°C) and min 35.2°F (1.8°C). In Mendon, the beginning of November is marked by a lowered average high-temperature, shifting from October's refreshing 59.9°F (15.5°C) to a frosty 48.7°F (9.3°C). Weather in November »
Weather in December
December, the first month of the winter in Mendon, is also a wintry month, with an average temperature ranging between min 27.3°F (-2.6°C) and max 38.3°F (3.5°C). The onset of December comes with a shift in the average high-temperature, falling from a chilly 48.7°F (9.3°C) in November to an icy 38.3°F (3.5°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
What time of the year is the coldest?
Mendon witnesses the coldest weather in January, with temperatures averaging a high of 32.5°F (0.3°C) and a low of 20.5°F (-6.4°C).
How much does it rain?
Throughout the year, there are 152.2 rainfall days, and 30.67" (779mm) of precipitation is accumulated.
When does it snow?
Months with snowfall are January through May, November and December.
How much does it snow?
In Mendon, during the entire year, snow falls for 32.5 days and aggregates up to 18.78" (477mm) of snow.
What is the month with the lowest UV index?
January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index.
What is the most humid month?
With an average relative humidity of 80%, February is the most humid month.
What is the month with the least sunshine?
With an average of 4.6h of sunshine, February has the least sunshine of the year.
What is the snowiest month?
March is the month with the most snowfall. Snow falls for 8.3 days and accumulates 4.92" (125mm) of snow.
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 is the least humid month, with an average relative humidity of 71%.
When it does not snow?
June through October are months without snowfall in Mendon.
When are the longest days?
June has the longest days of the year, with an average of 15h and 12min of daylight.
When is the highest UV index?
June through August, with an average maximum UV index of 6, are months with the highest UV index.
What part of the year is the hottest?
With an average high-temperature of 81.7°F (27.6°C) and an average low-temperature of 62.6°F (17°C), July is the warmest month.
What month has the most sunshine?
With an average of 10.1h of sunshine, August has the most sunshine of the year.
What is the driest month?
The month with the least rainfall is September, when the rain falls for 12.2 days and typically collects 1.54" (39mm) of precipitation.
What is the wettest month?
December is the month with the most rainfall. Rain falls for 10.3 days and accumulates 3.15" (80mm) of precipitation.
What is the month with the shortest days?
With an average of 9h and 12min of daylight, December has the shortest days of the year.
Average temperature
Mendon, MA
The warmest month (with the highest average high temperature) is July (81.7°F).
The month with the lowest average high temperature is January (32.5°F).
The month with the highest average low temperature is July (62.6°F).
The coldest month (with the lowest average low temperature) is January (20.5°F).
Average pressure
Mendon, MA
- Average pressure in January:
30.01"Hg - Average pressure in February:
30"Hg - Average pressure in March:
30.03"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:
30.07"Hg - Average pressure in December:
30.04"Hg
The month with the highest atmospheric pressure is November (30.07"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed
Mendon, MA
- Average wind speed in January:
8.9mph - Average wind speed in February:
8.9mph - Average wind speed in March:
8.9mph - Average wind speed in April:
8.4mph - Average wind speed in May:
7.1mph - Average wind speed in June:
6.4mph
- Average wind speed in July:
5.8mph - Average wind speed in August:
5.7mph - Average wind speed in September:
6.2mph - Average wind speed in October:
7.5mph - Average wind speed in November:
8mph - Average wind speed in December:
8.5mph
The windiest months (with the highest average wind speed) are January, February and March (8.9mph).
The calmest month (with the lowest average wind speed) is August (5.7mph).
Average humidity
Mendon, MA
The month with the highest relative humidity is February (80%).
The month with the lowest relative humidity is April (71%).
Average rainfall
Mendon, MA
- Average rainfall in January:
2.48" - Average rainfall in February:
2.28" - Average rainfall in March:
2.72" - Average rainfall in April:
2.83" - Average rainfall in May:
2.48" - Average rainfall in June:
2.68"
- Average rainfall in July:
2.68" - Average rainfall in August:
2.36" - Average rainfall in September:
1.54" - Average rainfall in October:
2.72" - Average rainfall in November:
2.76" - Average rainfall in December:
3.15"
The wettest month (with the highest rainfall) is December (3.15").
The driest month (with the least rainfall) is September (1.54").
Average rainfall days
Mendon, MA
- Average rainfall days in January:
7.7 days - Average rainfall days in February:
8 days - Average rainfall days in March:
11.4 days - Average rainfall days in April:
14.5 days - Average rainfall days in May:
16.1 days - Average rainfall days in June:
16.1 days
- Average rainfall days in July:
16.8 days - Average rainfall days in August:
14.8 days - Average rainfall days in September:
12.2 days - Average rainfall days in October:
14 days - Average rainfall days in November:
10.3 days - Average rainfall days in December:
10.3 days
The month with the highest number of rainy days is July (16.8 days).
The month with the least rainy days is January (7.7 days).
Average snowfall
Mendon, MA
The month with the highest snowfall is March (4.92").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days
Mendon, MA
- Average snowfall days in January:
8.4 days - Average snowfall days in February:
7.8 days - Average snowfall days in March:
8.3 days - Average snowfall days in April:
1.4 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 days - Average snowfall days in November:
1.5 days - Average snowfall days in December:
5 days
The month with the highest number of snowfall days is January (8.4 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average daylight / Average sunshine
Mendon, 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 1min - 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 12min).
- Average sunshine in January:
5h and 0min - Average sunshine in February:
4h and 4min - Average sunshine in March:
5h and 5min - Average sunshine in April:
8h and 1min - Average sunshine in May:
8h and 1min - Average sunshine in June:
9h and 0min
- Average sunshine in July:
10h and 0min - Average sunshine in August:
10h and 1min - Average sunshine in September:
8h and 1min - Average sunshine in October:
5h and 5min - Average sunshine in November:
5h and 2min - Average sunshine in December:
4h and 5min
The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).
Average sunshine days
Mendon, MA
- Average sunshine days in January:
16.5 days - Average sunshine days in February:
14.3 days - Average sunshine days in March:
13.8 days - Average sunshine days in April:
13.5 days - Average sunshine days in May:
12.9 days - Average sunshine days in June:
12.2 days
- Average sunshine days in July:
11.8 days - Average sunshine days in August:
14 days - Average sunshine days in September:
15.5 days - Average sunshine days in October:
14.6 days - Average sunshine days in November:
18 days - Average sunshine days in December:
16.5 days
The month with the most sunshine days is November (18 days).
The month with the least sunshine days is July (11.8 days).
Average UV index
Mendon, MA
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover
Mendon, MA
The month with the most cloud cover is March (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 36).
Average visibility
Mendon, MA
The months with the highest visibility are January, March, April, October, November and December (6mi).
The months with the lowest visibility are February, May, June, July, August and September (5mi).