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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, in Winterthur, Delaware, is an icy winter month, with an average temperature fluctuating between 25.3°F (-3.7°C) and 37°F (2.8°C). Winterthur, Delaware, reaches its lowest average temperatures in January, measuring 37°F (2.8°C) at the peak and 25.3°F (-3.7°C) at the lowest. Weather in January »
Weather in February
February, the last month of the winter in Winterthur, is another cold month, with temperature in the range of an average low of 27.7°F (-2.4°C) and an average high of 40.8°F (4.9°C). The advent of February observes an average high-temperature of a still icy 40.8°F (4.9°C), nearly identical to January's 37°F (2.8°C). Weather in February »
Weather in March
The first month of the spring, March, is a chilly month in Winterthur, Delaware, with an average temperature varying between 34.7°F (1.5°C) and 49.3°F (9.6°C). The arrival of March witnesses a small shift in the average high-temperature, moving from a cold 40.8°F (4.9°C) in February to a chilly 49.3°F (9.6°C). Weather in March »
Weather in April
April is a refreshing spring month in Winterthur, Delaware, with an average temperature fluctuating between 61.3°F (16.3°C) and 44.6°F (7°C). As Winterthur transitions into April, a rise in the average high-temperature is observed, moving from a frosty 49.3°F (9.6°C) in March to a refreshing 61.3°F (16.3°C). Weather in April »
Weather in May
May, the last month of the spring in Winterthur, is a pleasant month, with an average temperature varying between 71.6°F (22°C) and 54.5°F (12.5°C). May brings an increase in the average high-temperature, progressing from a refreshing 61.3°F (16.3°C) in April to a pleasant 71.6°F (22°C). Weather in May »
Weather in June
June, the first month of the summer in Winterthur, is a warm month, with an average temperature varying between 62.8°F (17.1°C) and 79.5°F (26.4°C). Winterthur, Delaware, observes a slight uplift in the average high-temperature with the onset of June, adjusting from May's pleasant 71.6°F (22°C) to a moderately hot 79.5°F (26.4°C). Weather in June »
Weather in July
July, like June, in Winterthur, Delaware, is another warm summer month, with an average temperature ranging between max 84.9°F (29.4°C) and min 68.4°F (20.2°C). In Winterthur, the peak average temperatures are observed in July, with a high of 84.9°F (29.4°C) and a low of 68.4°F (20.2°C). The average heat index in July is computed to be a tropical 93.2°F (34°C). Weather in July »
Weather in August
August, the last month of the summer in Winterthur, is also a moderately hot month, with an average temperature ranging between max 82.9°F (28.3°C) and min 66.7°F (19.3°C). As Winterthur steps into August, the average high-temperature holds at a still warm 82.9°F (28.3°C), hinting at a minor fluctuation from the prior month. Weather in August »
Weather in September
The first month of the autumn, September, is also a moderately hot month in Winterthur, Delaware, with an average temperature fluctuating between 76.3°F (24.6°C) and 59.9°F (15.5°C). The average high-temperature shows a slight dip in September, from August's 82.9°F (28.3°C) to a still moderately hot 76.3°F (24.6°C). Weather in September »
Weather in October
October, the same as September, is another refreshing autumn month in Winterthur, Delaware, with an average temperature varying between 64.6°F (18.1°C) and 50.2°F (10.1°C). The arrival of October corresponds with a reduction in the average high-temperature, down from September's moderately hot 76.3°F (24.6°C) to a refreshing 64.6°F (18.1°C). Weather in October »
Weather in November
The last month of the autumn, November, is also a fresh month in Winterthur, Delaware, with temperature in the range of an average low of 38.8°F (3.8°C) and an average high of 52.2°F (11.2°C). In November, the average high-temperature decreases from a comfortable 64.6°F (18.1°C) in October to a cool 52.2°F (11.2°C). Weather in November »
Weather in December
The first month of the winter, December, is still a chilly month in Winterthur, Delaware, with an average temperature ranging between max 43.7°F (6.5°C) and min 32.7°F (0.4°C). A minor decrease in the average high-temperature is observed during December, shifting from a fresh 52.2°F (11.2°C) in November to a frosty 43.7°F (6.5°C). Weather in December »
Updated: Jul 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 month is the coldest?
In Winterthur, January is the month with the lowest recorded average temperatures, measuring a high of 37°F (2.8°C) and a low of 25.3°F (-3.7°C).
What is the driest month?
The month with the least rainfall is January, when the rain falls for 9.3 days and typically collects 2.36" (60mm) of precipitation.
How many days does it rain?
Throughout the year, there are 168.9 rainfall days, and 35.55" (903mm) of precipitation is accumulated.
When does it snow?
Months with snowfall in Winterthur are January through May, October through December.
How much does it snow?
In Winterthur, during the entire year, snow falls for 21.9 days and aggregates up to 12.05" (306mm) of snow.
When is the lowest UV index?
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2.
What is the month with the least sunshine?
February has the least sunshine of the year, with an average of 4.9h of sunshine.
What is the snowiest month?
The month with the most snowfall is March, when snow falls for 4.7 days and typically aggregates up to 3.58" (91mm) 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 72%.
What are the months with the highest UV index?
May through August, with an average maximum UV index of 6, are months with the highest UV index.
When it does not snow?
In Winterthur, Delaware, snow does not fall in June through September.
When are the longest days in Winterthur?
With an average of 14h and 54min of daylight, June has the longest days of the year.
What time of the year is the hottest?
With average high and low temperatures of 84.9°F (29.4°C) and 68.4°F (20.2°C) respectively, July is Winterthur's warmest month.
What month has the most sunshine?
July has the most sunshine of the year, with an average of 10.6h of sunshine.
What is the wettest month?
August is the month with the most rainfall in Winterthur. Rain falls for 17.3 days and accumulates 4.09" (104mm) of precipitation.
What is the most humid month?
The most humid month is October, with an average relative humidity of 78%.
What is the month with the shortest days?
With an average of 9h and 24min of daylight, December has the shortest days of the year.
Average temperature
Winterthur, DE
The warmest month (with the highest average high temperature) is July (84.9°F).
The month with the lowest average high temperature is January (37°F).
The month with the highest average low temperature is July (68.4°F).
The coldest month (with the lowest average low temperature) is January (25.3°F).
Average pressure
Winterthur, DE
- Average pressure in January:
30.09"Hg - Average pressure in February:
30.06"Hg - Average pressure in March:
30.07"Hg - Average pressure in April:
29.99"Hg - Average pressure in May:
30.01"Hg - Average pressure in June:
29.94"Hg
- Average pressure in July:
29.96"Hg - Average pressure in August:
29.99"Hg - Average pressure in September:
30.05"Hg - Average pressure in October:
30.03"Hg - Average pressure in November:
30.12"Hg - Average pressure in December:
30.1"Hg
The month with the highest atmospheric pressure is November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed
Winterthur, DE
- Average wind speed in January:
8.6mph - Average wind speed in February:
8.6mph - Average wind speed in March:
8.6mph - Average wind speed in April:
8.5mph - Average wind speed in May:
6.8mph - Average wind speed in June:
6.3mph
- Average wind speed in July:
5.5mph - Average wind speed in August:
5.4mph - Average wind speed in September:
5.8mph - Average wind speed in October:
7.2mph - Average wind speed in November:
7.7mph - Average wind speed in December:
8mph
The windiest months (with the highest average wind speed) are January, February and March (8.6mph).
The calmest month (with the lowest average wind speed) is August (5.4mph).
Average humidity
Winterthur, DE
The month with the highest relative humidity is October (78%).
The month with the lowest relative humidity is April (72%).
Average rainfall
Winterthur, DE
- Average rainfall in January:
2.36" - Average rainfall in February:
2.56" - Average rainfall in March:
2.95" - Average rainfall in April:
2.87" - Average rainfall in May:
3.19" - Average rainfall in June:
3.07"
- Average rainfall in July:
3.58" - Average rainfall in August:
4.09" - Average rainfall in September:
2.4" - Average rainfall in October:
2.72" - Average rainfall in November:
2.44" - Average rainfall in December:
3.31"
The wettest month (with the highest rainfall) is August (4.09").
The driest month (with the least rainfall) is January (2.36").
Average rainfall days
Winterthur, DE
- Average rainfall days in January:
9.3 days - Average rainfall days in February:
10.1 days - Average rainfall days in March:
14.9 days - Average rainfall days in April:
16.3 days - Average rainfall days in May:
18.7 days - Average rainfall days in June:
17.5 days
- Average rainfall days in July:
18.5 days - Average rainfall days in August:
17.3 days - Average rainfall days in September:
13.3 days - Average rainfall days in October:
12.7 days - Average rainfall days in November:
8.8 days - Average rainfall days in December:
11.5 days
The month with the highest number of rainy days is May (18.7 days).
The month with the least rainy days is November (8.8 days).
Average snowfall
Winterthur, DE
- Average snowfall in January:
3.03" - Average snowfall in February:
2.87" - Average snowfall in March:
3.58" - Average snowfall in April:
0.31" - Average snowfall in May:
0.12" - Average snowfall in June:
0"
The month with the highest snowfall is March (3.58").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Winterthur, DE
- Average snowfall days in January:
6.8 days - Average snowfall days in February:
5.8 days - Average snowfall days in March:
4.7 days - Average snowfall days in April:
0.4 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:
0.1 days - Average snowfall days in November:
0.8 days - Average snowfall days in December:
3.2 days
The month with the highest number of snowfall days is January (6.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Winterthur, DE
- Average daylight in January:
9h and 4min - 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 2min - Average daylight in June:
14h and 5min
- Average daylight in July:
14h and 4min - Average daylight in August:
13h and 4min - Average daylight in September:
12h and 2min - Average daylight in October:
11h and 1min - Average daylight in November:
10h and 0min - Average daylight in December:
9h and 2min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in January:
5h and 0min - Average sunshine in February:
4h and 5min - Average sunshine in March:
6h and 3min - Average sunshine in April:
8h and 3min - Average sunshine in May:
8h and 4min - Average sunshine in June:
10h and 0min
- Average sunshine in July:
10h and 4min - Average sunshine in August:
10h and 1min - Average sunshine in September:
8h and 5min - Average sunshine in October:
5h and 4min - Average sunshine in November:
5h and 4min - Average sunshine in December:
5h and 0min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 54min).
Average sunshine days
Winterthur, DE
- Average sunshine days in January:
16.8 days - Average sunshine days in February:
13.2 days - Average sunshine days in March:
12.3 days - Average sunshine days in April:
11.9 days - Average sunshine days in May:
9.8 days - Average sunshine days in June:
9.9 days
- Average sunshine days in July:
9.8 days - Average sunshine days in August:
11 days - Average sunshine days in September:
14.2 days - Average sunshine days in October:
15.5 days - Average sunshine days in November:
18.6 days - Average sunshine days in December:
15.9 days
The month with the most sunshine days is November (18.6 days).
The months with the least sunshine days are May and July (9.8 days).
Average UV index
Winterthur, DE
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover
Winterthur, DE
The months with the most cloud cover are February and March (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 31).
Average visibility
Winterthur, DE
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Winterthur, Delaware, USA
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