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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 Sandown, New Hampshire, with an average temperature ranging between max 31.3°F (-0.4°C) and min 18.9°F (-7.3°C). Sandown's January weather reaches an average high of 31.3°F (-0.4°C) and an average low of 18.9°F (-7.3°C), making it the coldest month. Weather in January »
Weather in February
The last month of the winter, February, is a cold month in Sandown, New Hampshire, with an average temperature varying between 19.8°F (-6.8°C) and 33.6°F (0.9°C). February observes an average high-temperature of an icy 33.6°F (0.9°C), marking an insignificant difference from January's 31.3°F (-0.4°C). Weather in February »
Weather in March
March, the first month of the spring in Sandown, is still a cold month, with an average temperature ranging between min 27.3°F (-2.6°C) and max 40.6°F (4.8°C). March comes with a subtle rise, with the average high-temperature adjusting from a wintry 33.6°F (0.9°C) in February to a still cold 40.6°F (4.8°C). Weather in March »
Weather in April
April is a fresh spring month in Sandown, New Hampshire, with an average temperature varying between 53.2°F (11.8°C) and 37.2°F (2.9°C). An increase in the average high-temperature marks April, moving from March's icy 40.6°F (4.8°C) to a fresh 53.2°F (11.8°C). Weather in April »
Weather in May
The last month of the spring, May, is an enjoyable month in Sandown, New Hampshire, with an average temperature ranging between max 64.6°F (18.1°C) and min 46.9°F (8.3°C). Sandown in May shows a temperature shift, moving from an average high of a cool 53.2°F (11.8°C) in April to an enjoyable 64.6°F (18.1°C). Weather in May »
Weather in June
June, the first month of the summer in Sandown, is a pleasant month, with an average temperature varying between 73°F (22.8°C) and 54.5°F (12.5°C). With the beginning of June, Sandown's average high-temperature sees a minor increase, transitioning from a refreshing 64.6°F (18.1°C) in May to a pleasant 73°F (22.8°C). Weather in June »
Weather in July
July is a warm summer month in Sandown, New Hampshire, with an average temperature ranging between min 61.3°F (16.3°C) and max 80.2°F (26.8°C). In Sandown, New Hampshire, July is identified by the highest average temperatures, reaching a peak of 80.2°F (26.8°C) and a low of 61.3°F (16.3°C). Weather in July »
Weather in August
The last month of the summer, August, is another warm month in Sandown, New Hampshire, with an average temperature fluctuating between 79°F (26.1°C) and 60.1°F (15.6°C). As July transitions into August, Sandown records an average high-temperature of a still moderately hot 79°F (26.1°C), showing a gentle shift from the preceding month. Weather in August »
Weather in September
The first month of the autumn, September, is still a pleasant month in Sandown, New Hampshire, with an average temperature fluctuating between 71.2°F (21.8°C) and 54.1°F (12.3°C). The transition into September is accompanied by a slight temperature decrease, with the average high-temperature shifting from a warm 79°F (26.1°C) in August to a pleasant 71.2°F (21.8°C). Weather in September »
Weather in October
October, like September, is another refreshing autumn month in Sandown, New Hampshire, with an average temperature varying between 59°F (15°C) and 45.1°F (7.3°C). October's arrival comes with a decrease in the average high-temperature, moving from an agreeable 71.2°F (21.8°C) in September to a refreshing 59°F (15°C). Weather in October »
Weather in November
November, the last month of the autumn in Sandown, is also a frosty month, with temperature in the range of an average high of 47.1°F (8.4°C) and an average low of 34.2°F (1.2°C). The average high-temperature drops in November, from October's refreshing 59°F (15°C) to a frosty 47.1°F (8.4°C). Weather in November »
Weather in December
The first month of the winter, December, is also a wintry month in Sandown, New Hampshire, with temperature in the range of an average low of 26.2°F (-3.2°C) and an average high of 36.5°F (2.5°C). During the transition into December, Sandown observes a decrease in the average high-temperature, falling from a chilly 47.1°F (8.4°C) in November to an icy 36.5°F (2.5°C). Weather in December »
Updated: Feb 13, 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 in Sandown?
The lowest temperatures are recorded in January, with averages reaching a high of 31.3°F (-0.4°C) and a low of 18.9°F (-7.3°C).
How many days does it rain in Sandown?
Throughout the year, there are 137.4 rainfall days, and 28.15" (715mm) of precipitation is accumulated.
When does it snow in Sandown?
Months with snowfall are January through May, October through December.
How much does it snow in Sandown?
Throughout the year, in Sandown, there are 37 snowfall days, and 24.88" (632mm) of snow is accumulated.
When is the lowest UV index in Sandown?
January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Sandown.
What is the most humid month in Sandown?
February is the most humid month in Sandown, New Hampshire, with an average relative humidity of 81%.
What is the snowiest month in Sandown?
February is the month with the most snowfall in Sandown, New Hampshire. Snow falls for 8.8 days and accumulates 5.98" (152mm) of snow.
What is the month with the least sunshine in Sandown?
With an average of 4.6h of sunshine, February has the least sunshine of the year.
When is Daylight Saving Time (DST) in Sandown?
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 Sandown?
The least humid month in Sandown is April, with an average relative humidity of 73%.
When it does not snow in Sandown?
In Sandown, snow does not fall in June through September.
When are the longest days in Sandown?
With an average of 15h and 18min of daylight, June has the longest days of the year in Sandown, New Hampshire.
What is the month with the highest UV index in Sandown?
June through August, with an average maximum UV index of 6, are months with the highest UV index in Sandown, New Hampshire.
What time of the year is the hottest in Sandown?
July, known for its average high temperature of 80.2°F (26.8°C) and an average low temperature of 61.3°F (16.3°C), is the warmest month in Sandown, New Hampshire.
What month has the most sunshine in Sandown?
August has the most sunshine of the year in Sandown, with an average of 10.4h of sunshine.
What is the driest month in Sandown?
September is the month with the least rainfall in Sandown. Rain falls for 11.3 days and accumulates 1.5" (38mm) of precipitation.
What is the wettest month in Sandown?
The month with the most rainfall is December, when the rain falls for 9.5 days and typically aggregates up to 2.99" (76mm) of precipitation.
What is the month with the shortest days in Sandown?
The month with the shortest days in Sandown, New Hampshire, is December, with an average of 9h and 6min of daylight.
Average temperature
Sandown, NH
The warmest month (with the highest average high temperature) is July (80.2°F).
The month with the lowest average high temperature is January (31.3°F).
The month with the highest average low temperature is July (61.3°F).
The coldest month (with the lowest average low temperature) is January (18.9°F).
Average pressure
Sandown, NH
- Average pressure in January:
30"Hg - Average pressure in February:
29.98"Hg - Average pressure in March:
30.03"Hg - Average pressure in April:
29.96"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:
30.05"Hg - Average pressure in October:
30.01"Hg - Average pressure in November:
30.06"Hg - Average pressure in December:
30.03"Hg
The month with the highest atmospheric pressure is November (30.06"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed
Sandown, NH
- Average wind speed in January:
9.4mph - Average wind speed in February:
9.1mph - Average wind speed in March:
8.7mph - Average wind speed in April:
8.1mph - Average wind speed in May:
6.8mph - Average wind speed in June:
6.2mph
- Average wind speed in July:
5.5mph - Average wind speed in August:
5.5mph - Average wind speed in September:
6mph - Average wind speed in October:
7.4mph - Average wind speed in November:
7.8mph - Average wind speed in December:
8.8mph
The windiest month (with the highest average wind speed) is January (9.4mph).
The calmest months (with the lowest average wind speed) are July and August (5.5mph).
Average humidity
Sandown, NH
The month with the highest relative humidity is February (81%).
The month with the lowest relative humidity is April (73%).
Average rainfall
Sandown, NH
- Average rainfall in January:
2.24" - Average rainfall in February:
2.17" - Average rainfall in March:
2.48" - Average rainfall in April:
2.68" - Average rainfall in May:
1.93" - Average rainfall in June:
2.44"
- Average rainfall in July:
2.13" - Average rainfall in August:
2.01" - Average rainfall in September:
1.5" - Average rainfall in October:
2.91" - Average rainfall in November:
2.68" - Average rainfall in December:
2.99"
The wettest month (with the highest rainfall) is December (2.99").
The driest month (with the least rainfall) is September (1.5").
Average rainfall days
Sandown, NH
- Average rainfall days in January:
6.4 days - Average rainfall days in February:
6.9 days - Average rainfall days in March:
11.2 days - Average rainfall days in April:
13.8 days - Average rainfall days in May:
14.9 days - Average rainfall days in June:
14.3 days
- Average rainfall days in July:
13 days - Average rainfall days in August:
12.8 days - Average rainfall days in September:
11.3 days - Average rainfall days in October:
12.5 days - Average rainfall days in November:
10.8 days - Average rainfall days in December:
9.5 days
The month with the highest number of rainy days is May (14.9 days).
The month with the least rainy days is January (6.4 days).
Average snowfall
Sandown, NH
- Average snowfall in January:
5.28" - Average snowfall in February:
5.98" - Average snowfall in March:
4.61" - Average snowfall in April:
1.85" - Average snowfall in May:
0.12" - Average snowfall in June:
0"
The month with the highest snowfall is February (5.98").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Sandown, NH
- Average snowfall days in January:
9.3 days - Average snowfall days in February:
8.8 days - Average snowfall days in March:
7.9 days - Average snowfall days in April:
1.7 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:
2.3 days - Average snowfall days in December:
6.4 days
The month with the highest number of snowfall days is January (9.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Sandown, NH
- Average daylight in January:
9h and 2min - 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 2min
- Average daylight in July:
15h and 0min - 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 4min - Average daylight in December:
9h and 1min
The month with the longest days is June (Average daylight: 15h and 18min).
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 4min - Average sunshine in March:
5h and 3min - Average sunshine in April:
7h and 5min - Average sunshine in May:
8h and 1min - Average sunshine in June:
8h and 5min
- Average sunshine in July:
10h and 0min - Average sunshine in August:
10h and 2min - Average sunshine in September:
8h and 2min - Average sunshine in October:
5h and 5min - Average sunshine in November:
5h and 2min - Average sunshine in December:
4h and 4min
The month with the most sunshine is August (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).
Average sunshine days
Sandown, NH
- Average sunshine days in January:
16.8 days - Average sunshine days in February:
14.5 days - Average sunshine days in March:
13.8 days - Average sunshine days in April:
13.6 days - Average sunshine days in May:
15 days - Average sunshine days in June:
13.7 days
- Average sunshine days in July:
15.7 days - Average sunshine days in August:
15.8 days - Average sunshine days in September:
17.1 days - Average sunshine days in October:
16.2 days - Average sunshine days in November:
17.3 days - Average sunshine days in December:
16.4 days
The month with the most sunshine days is November (17.3 days).
The month with the least sunshine days is April (13.6 days).
Average UV index
Sandown, NH
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
Sandown, NH
The month with the most cloud cover is March (Cloud cover 52).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility
Sandown, NH
The months with the highest visibility are January, March, April, June, October, November and December (6mi).
The months with the lowest visibility are February, May, July, August and September (5mi).
Sandown, New Hampshire, USA
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