Climate and monthly weather forecastWinchester, NH
Climate and monthly weather forecast
Weather in January
January, the same as December, in Winchester, New Hampshire, is a freezing cold winter month, with an average temperature fluctuating between 28.4°F (-2°C) and 16.2°F (-8.8°C). January, recording an average high temperature of 28.4°F (-2°C) and a low temperature of 16.2°F (-8.8°C), is Winchester's coldest month. Weather in January »Weather in February
The last month of the winter, February, is another freezing cold month in Winchester, New Hampshire, with an average temperature ranging between max 31.8°F (-0.1°C) and min 17.1°F (-8.3°C). Winchester experiences a recorded average high-temperature of a still subzero cold 31.8°F (-0.1°C) in February, closely aligned with January's 28.4°F (-2°C). Weather in February »Weather in March
The first month of the spring, March, is a wintry month in Winchester, New Hampshire, with temperature in the range of an average high of 40.1°F (4.5°C) and an average low of 25°F (-3.9°C). Winchester in March experiences a slight uptick in the average high-temperature, adjusting from February's subzero cold 31.8°F (-0.1°C) to a cold 40.1°F (4.5°C). Weather in March »Weather in April
April in Winchester, New Hampshire, is a cool spring month, with an average temperature ranging between min 35.4°F (1.9°C) and max 53.4°F (11.9°C). The arrival of April brings an increase in high-temperatures, moving from an icy 40.1°F (4.5°C) in March to a cool 53.4°F (11.9°C). Weather in April »Weather in May
The last month of the spring, May, is a comfortable month in Winchester, New Hampshire, with temperature in the range of an average low of 46°F (7.8°C) and an average high of 66.9°F (19.4°C). The start of May brings a rise in the average high-temperature, moving from a fresh 53.4°F (11.9°C) in April to a refreshing 66.9°F (19.4°C). Weather in May »Weather in June
June, the first month of the summer in Winchester, is a moderately hot month, with an average temperature ranging between max 73.9°F (23.3°C) and min 52.9°F (11.6°C). With the onset of June, Winchester experiences a subtle temperature shift, with the average high-temperature moving from a comfortable 66.9°F (19.4°C) in May to a warm 73.9°F (23.3°C). Weather in June »Weather in July
July, like June, in Winchester, New Hampshire, is another warm summer month, with an average temperature ranging between max 80.2°F (26.8°C) and min 59.2°F (15.1°C). With average high and low temperatures of 80.2°F (26.8°C) and 59.2°F (15.1°C) respectively, July is Winchester's warmest month. Weather in July »Weather in August
The last month of the summer, August, is also a moderately hot month in Winchester, New Hampshire, with an average temperature varying between 78.4°F (25.8°C) and 57.6°F (14.2°C). The transition from July to August brings an average high-temperature of a still warm 78.4°F (25.8°C), barely different from July's 80.2°F (26.8°C). Weather in August »Weather in September
The first month of the autumn, September, is also an agreeable month in Winchester, New Hampshire, with an average temperature fluctuating between 71.1°F (21.7°C) and 51.4°F (10.8°C). September brings a minor shift in the average high-temperature, adjusting from a moderately hot 78.4°F (25.8°C) in August to a pleasant 71.1°F (21.7°C). Weather in September »Weather in October
October, the same as September, in Winchester, New Hampshire, is a moderate autumn month, with an average temperature varying between 42.6°F (5.9°C) and 57.6°F (14.2°C). With the onset of October, Winchester's average high-temperature adjusts, receding from September's agreeable 71.1°F (21.7°C) to a refreshing 57.6°F (14.2°C). Weather in October »Weather in November
The last month of the autumn, November, is another chilly month in Winchester, New Hampshire, with an average temperature fluctuating between 31.8°F (-0.1°C) and 45.5°F (7.5°C). November suggests a modest reduction in the average high-temperature, shifting from a mild 57.6°F (14.2°C) in October to a chilly 45.5°F (7.5°C). Weather in November »Weather in December
December, the first month of the winter in Winchester, is also an icy month, with an average temperature fluctuating between 34.5°F (1.4°C) and 23.9°F (-4.5°C). The onset of December coincides with a reduction in the average high-temperature, falling from a frosty 45.5°F (7.5°C) in November to a cold 34.5°F (1.4°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
January, having an average high-temperature of 28.4°F (-2°C) and an average low-temperature of 16.2°F (-8.8°C), is the coldest month in Winchester, New Hampshire.
Throughout the year, in Winchester, there are 146.7 rainfall days, and 27.2" (691mm) of precipitation is accumulated.
Months with snowfall in Winchester are January through May, October through December.
Throughout the year, in Winchester, there are 43.8 snowfall days, and 27.28" (693mm) of snow is accumulated.
The months with the lowest UV index in Winchester, New Hampshire, are January through March, October through December, with an average maximum UV index of 2.
With an average relative humidity of 84%, February is the most humid month in Winchester.
The month with the most snowfall is February, when snow falls for 10.9 days and typically aggregates up to 7.44" (189mm) of snow.
The month with the least sunshine in Winchester, New Hampshire, is February, with an average of 4.6h of sunshine.
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Winchester, New Hampshire, 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 in Winchester.
May through August, with an average maximum UV index of 5, are months with the highest UV index in Winchester, New Hampshire.
June through September are months without snowfall in Winchester.
With an average of 15h and 18min of daylight, June has the longest days of the year.
Winchester's warmest month, July, registers temperatures that range from a high of 80.2°F (26.8°C) to a low of 59.2°F (15.1°C).
With an average of 10.4h of sunshine, August has the most sunshine of the year in Winchester, New Hampshire.
The month with the least rainfall is September, when the rain falls for 11.4 days and typically collects 1.81" (46mm) of precipitation.
October is the month with the most rainfall. Rain falls for 14 days and accumulates 2.76" (70mm) of precipitation.
December has the shortest days of the year, with an average of 9h and 6min of daylight.
Average temperature
Winchester, 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 (28.4°F).
The month with the highest average low temperature is July (59.2°F).
The coldest month (with the lowest average low temperature) is January (16.2°F).
Average pressure
Winchester, NH
- 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:
30.05"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
Winchester, NH
- Average wind speed in January:
7.8mph - Average wind speed in February:
7.8mph - Average wind speed in March:
7.8mph - Average wind speed in April:
7.6mph - Average wind speed in May:
6.3mph - Average wind speed in June:
5.7mph
- Average wind speed in July:
5.2mph - Average wind speed in August:
5mph - Average wind speed in September:
5.4mph - Average wind speed in October:
6.5mph - Average wind speed in November:
6.9mph - Average wind speed in December:
7.3mph
The windiest months (with the highest average wind speed) are January, February and March (7.8mph).
The calmest month (with the lowest average wind speed) is August (5mph).
Average humidity
Winchester, NH
The month with the highest relative humidity is February (84%).
The month with the lowest relative humidity is April (73%).
Average rainfall
Winchester, NH
- Average rainfall in January:
2.17" - Average rainfall in February:
2.09" - Average rainfall in March:
2.2" - Average rainfall in April:
2.4" - Average rainfall in May:
2.2" - Average rainfall in June:
2.32"
- Average rainfall in July:
2.2" - Average rainfall in August:
1.89" - Average rainfall in September:
1.81" - Average rainfall in October:
2.76" - Average rainfall in November:
2.52" - Average rainfall in December:
2.64"
The wettest month (with the highest rainfall) is October (2.76").
The driest month (with the least rainfall) is September (1.81").
Average rainfall days
Winchester, NH
- Average rainfall days in January:
8.5 days - Average rainfall days in February:
8.1 days - Average rainfall days in March:
11.3 days - Average rainfall days in April:
15 days - Average rainfall days in May:
15 days - Average rainfall days in June:
15.2 days
- Average rainfall days in July:
14.1 days - Average rainfall days in August:
13.5 days - Average rainfall days in September:
11.4 days - Average rainfall days in October:
14 days - Average rainfall days in November:
10.8 days - Average rainfall days in December:
9.8 days
The month with the highest number of rainy days is June (15.2 days).
The month with the least rainy days is February (8.1 days).
Average snowfall
Winchester, NH
- Average snowfall in January:
6.06" - Average snowfall in February:
7.44" - Average snowfall in March:
4.41" - Average snowfall in April:
1.22" - Average snowfall in May:
0.31" - Average snowfall in June:
0"
The month with the highest snowfall is February (7.44").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Winchester, NH
- Average snowfall days in January:
9.6 days - Average snowfall days in February:
10.9 days - Average snowfall days in March:
9.8 days - Average snowfall days in April:
2.1 days - Average snowfall days in May:
0.2 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:
0.6 days - Average snowfall days in November:
2.7 days - Average snowfall days in December:
7.9 days
The month with the highest number of snowfall days is February (10.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Winchester, NH
- 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 42min - Average daylight in June:
15h and 18min
- Average daylight in July:
15h and 0min - Average daylight in August:
13h and 54min - Average daylight in September:
12h and 30min - Average daylight in October:
11h and 0min - Average daylight in November:
9h and 48min - Average daylight in December:
9h and 6min
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:
5h and 6min - Average sunshine in February:
4h and 36min - Average sunshine in March:
6h and 0min - Average sunshine in April:
8h and 12min - Average sunshine in May:
8h and 36min - Average sunshine in June:
9h and 24min
- Average sunshine in July:
10h and 12min - Average sunshine in August:
10h and 24min - Average sunshine in September:
8h and 42min - Average sunshine in October:
5h and 54min - Average sunshine in November:
5h and 42min - Average sunshine in December:
5h and 0min
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
Winchester, NH
- Average sunshine days in January:
16.7 days - Average sunshine days in February:
12.8 days - Average sunshine days in March:
13.1 days - Average sunshine days in April:
13.2 days - Average sunshine days in May:
13.8 days - Average sunshine days in June:
12.4 days
- Average sunshine days in July:
14.8 days - Average sunshine days in August:
15.6 days - Average sunshine days in September:
15.4 days - Average sunshine days in October:
14.9 days - Average sunshine days in November:
16.7 days - Average sunshine days in December:
15.8 days
The months with the most sunshine days are January and November (16.7 days).
The month with the least sunshine days is June (12.4 days).
Average UV index
Winchester, NH
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).
Average cloud cover
Winchester, NH
The months with the most cloud cover are February and March (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility
Winchester, NH
The months with the highest visibility are April and November (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October and December (5mi).
