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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 Hartly, Delaware, is another cold winter month, with an average temperature ranging between min 27.9°F (-2.3°C) and max 39.2°F (4°C). The month of January, characterized by an average high of 39.2°F (4°C) and a low of 27.9°F (-2.3°C), is recognized as the coldest. Weather in January »
Weather in February
February, the last month of the winter in Hartly, is a frosty month, with an average temperature ranging between min 29.8°F (-1.2°C) and max 43°F (6.1°C). Hartly, Delaware, indicates an average high-temperature of a frosty 43°F (6.1°C) in February, showing minor variation from January's 39.2°F (4°C). Weather in February »
Weather in March
March, the first month of the spring in Hartly, is a cool month, with temperature in the range of an average high of 50.2°F (10.1°C) and an average low of 36.7°F (2.6°C). The start of March signals a slight increase in the average high-temperature, moving from a frosty 43°F (6.1°C) in February to a fresh 50.2°F (10.1°C). Weather in March »
Weather in April
April in Hartly, Delaware, is a comfortable spring month, with an average temperature fluctuating between 46.4°F (8°C) and 62.2°F (16.8°C). As March transitions into April, a change in temperatures is observed, with average highs moving from a cool 50.2°F (10.1°C) to a refreshing 62.2°F (16.8°C). Weather in April »
Weather in May
May, the last month of the spring in Hartly, is an agreeable month, with an average temperature ranging between min 55.9°F (13.3°C) and max 71.2°F (21.8°C). May's onset witnesses a shift in the average high-temperature, moving from an enjoyable 62.2°F (16.8°C) in April to an agreeable 71.2°F (21.8°C). Weather in May »
Weather in June
The first month of the summer, June, is a warm month in Hartly, Delaware, with an average temperature ranging between min 64°F (17.8°C) and max 79.3°F (26.3°C). A soft shift in the average high-temperature is noticeable in June, transitioning from an agreeable 71.2°F (21.8°C) in May to a moderately hot 79.3°F (26.3°C). Weather in June »
Weather in July
July, the same as June, is another warm summer month in Hartly, Delaware, with temperature in the range of an average high of 84.4°F (29.1°C) and an average low of 69.3°F (20.7°C). July, recognised by an average high temperature of 84.4°F (29.1°C) and a low of 69.3°F (20.7°C), is Hartly's warmest month. July's mean heat index is evaluated at a tropical 93.2°F (34°C). Weather in July »
Weather in August
The last month of the summer, August, is another warm month in Hartly, Delaware, with temperature in the range of an average low of 67.6°F (19.8°C) and an average high of 82.4°F (28°C). As Hartly steps into August, the average high-temperature holds at a still warm 82.4°F (28°C), hinting at a minor fluctuation from the prior month. Weather in August »
Weather in September
The first month of the autumn, September, is still a warm month in Hartly, Delaware, with an average temperature ranging between min 61.9°F (16.6°C) and max 76.6°F (24.8°C). A subtle shift in Hartly's weather is observed as August turns into September, with the average high temperature reducing from a moderately hot 82.4°F (28°C) to a still warm 76.6°F (24.8°C). Weather in September »
Weather in October
October, like September, in Hartly, Delaware, is another enjoyable autumn month, with an average temperature ranging between min 52.7°F (11.5°C) and max 65.5°F (18.6°C). During the transition into October, Hartly observes a decrease in the average high-temperature, falling from a warm 76.6°F (24.8°C) in September to a refreshing 65.5°F (18.6°C). Weather in October »
Weather in November
The last month of the autumn, November, is another cool month in Hartly, Delaware, with an average temperature fluctuating between 54°F (12.2°C) and 41.2°F (5.1°C). In Hartly, entering November brings a temperature decrement, reducing from October's enjoyable 65.5°F (18.6°C) to a cool 54°F (12.2°C). Weather in November »
Weather in December
December, the first month of the winter in Hartly, is also a frosty month, with an average temperature varying between 45.9°F (7.7°C) and 34.7°F (1.5°C). The start of December signals a gentle decrease in the average high-temperature, transitioning from a cool 54°F (12.2°C) in November to a frosty 45.9°F (7.7°C). Weather in December »
[Resources]Frequently asked questions
What is the coldest time of year in Hartly?
In Hartly, January is the coldest month, with temperatures averaging a high of 39.2°F (4°C) and a low of 27.9°F (-2.3°C).
What is the driest month in Hartly?
The month with the least rainfall in Hartly, Delaware, is January, when the rain falls for 9.7 days and typically collects 2.13" (54mm) of precipitation.
How many days does it rain in Hartly?
Throughout the year, there are 169.2 rainfall days, and 34.96" (888mm) of precipitation is accumulated.
When does it snow in Hartly?
Months with snowfall in Hartly, Delaware, are January through April, November and December.
How much does it snow in Hartly?
In Hartly, during the entire year, snow falls for 14.4 days and aggregates up to 7.44" (189mm) of snow.
When is the lowest UV index in Hartly?
The months with the lowest UV index are January and December, with an average maximum UV index of 2.
What is the month with the least sunshine in Hartly?
The month with the least sunshine in Hartly is February, with an average of 5.1h of sunshine.
What is the snowiest month in Hartly?
March is the month with the most snowfall in Hartly, Delaware. Snow falls for 2.8 days and accumulates 2.6" (66mm) of snow.
When is Daylight Saving Time (DST) in Hartly?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Hartly, Delaware, 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 Hartly?
With an average relative humidity of 73%, April is the least humid month.
What is the most humid month in Hartly?
With an average relative humidity of 79%, May is the most humid month.
When it does not snow in Hartly?
May through October are months without snowfall.
When is the highest UV index in Hartly?
May through August, with an average maximum UV index of 6, are months with the highest UV index.
When are the longest days in Hartly?
The month with the longest days in Hartly, Delaware, is June, with an average of 14h and 54min of daylight.
What are the warmest months in Hartly?
In Hartly, July is known for its average highest temperatures, reaching a high of 84.4°F (29.1°C) and a low of 69.3°F (20.7°C).
What month has the most sunshine in Hartly?
With an average of 10.7h of sunshine, July has the most sunshine of the year in Hartly, Delaware.
What is the rainiest month in Hartly?
August is the month with the most rainfall in Hartly. Rain falls for 16.4 days and accumulates 3.86" (98mm) of precipitation.
What is the month with the shortest days in Hartly?
With an average of 9h and 30min of daylight, December has the shortest days of the year.
Average temperature
Hartly, DE
The warmest month (with the highest average high temperature) is July (84.4°F).
The month with the lowest average high temperature is January (39.2°F).
The month with the highest average low temperature is July (69.3°F).
The coldest month (with the lowest average low temperature) is January (27.9°F).
Average pressure
Hartly, 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:
30.02"Hg - Average pressure in June:
29.94"Hg
- Average pressure in July:
29.96"Hg - Average pressure in August:
29.98"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
Hartly, DE
- Average wind speed in January:
9.4mph - Average wind speed in February:
9.5mph - Average wind speed in March:
9.5mph - Average wind speed in April:
9.4mph - Average wind speed in May:
7.6mph - Average wind speed in June:
7.1mph
- Average wind speed in July:
6.1mph - Average wind speed in August:
6mph - Average wind speed in September:
6.7mph - Average wind speed in October:
8.1mph - Average wind speed in November:
8.5mph - Average wind speed in December:
8.7mph
The windiest months (with the highest average wind speed) are February and March (9.5mph).
The calmest month (with the lowest average wind speed) is August (6mph).
Average humidity
Hartly, DE
The month with the highest relative humidity is May (79%).
The month with the lowest relative humidity is April (73%).
Average rainfall
Hartly, DE
- Average rainfall in January:
2.13" - Average rainfall in February:
2.64" - Average rainfall in March:
2.91" - Average rainfall in April:
2.64" - Average rainfall in May:
3.07" - Average rainfall in June:
3.19"
- Average rainfall in July:
3.62" - Average rainfall in August:
3.86" - Average rainfall in September:
2.32" - Average rainfall in October:
2.87" - Average rainfall in November:
2.28" - Average rainfall in December:
3.43"
The wettest month (with the highest rainfall) is August (3.86").
The driest month (with the least rainfall) is January (2.13").
Average rainfall days
Hartly, DE
- Average rainfall days in January:
9.7 days - Average rainfall days in February:
10.3 days - Average rainfall days in March:
15.1 days - Average rainfall days in April:
15.3 days - Average rainfall days in May:
18.3 days - Average rainfall days in June:
17.4 days
- Average rainfall days in July:
19 days - Average rainfall days in August:
16.4 days - Average rainfall days in September:
14.3 days - Average rainfall days in October:
12.6 days - Average rainfall days in November:
9.3 days - Average rainfall days in December:
11.5 days
The month with the highest number of rainy days is July (19 days).
The month with the least rainy days is November (9.3 days).
Average snowfall
Hartly, DE
The month with the highest snowfall is March (2.6").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days
Hartly, DE
- Average snowfall days in January:
4.5 days - Average snowfall days in February:
4.1 days - Average snowfall days in March:
2.8 days - Average snowfall days in April:
0.2 days - Average snowfall days in May:
0 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:
0.3 days - Average snowfall days in December:
2.5 days
The month with the highest number of snowfall days is January (4.5 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight / Average sunshine
Hartly, DE
- Average daylight in January:
9h and 5min - Average daylight in February:
10h and 5min - 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 3min
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 30min).
- Average sunshine in January:
5h and 2min - Average sunshine in February:
5h and 1min - Average sunshine in March:
6h and 4min - Average sunshine in April:
8h and 5min - Average sunshine in May:
8h and 5min - Average sunshine in June:
10h and 2min
- Average sunshine in July:
10h and 4min - Average sunshine in August:
10h and 3min - Average sunshine in September:
9h and 2min - Average sunshine in October:
5h and 4min - Average sunshine in November:
5h and 5min - Average sunshine in December:
5h and 1min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 5h and 6min).
Average sunshine days
Hartly, DE
- Average sunshine days in January:
17.2 days - Average sunshine days in February:
13.6 days - Average sunshine days in March:
13.4 days - Average sunshine days in April:
12.6 days - Average sunshine days in May:
10.3 days - Average sunshine days in June:
10.6 days
- Average sunshine days in July:
9.5 days - Average sunshine days in August:
11.3 days - Average sunshine days in September:
13.4 days - Average sunshine days in October:
16.3 days - Average sunshine days in November:
19.5 days - Average sunshine days in December:
16.8 days
The month with the most sunshine days is November (19.5 days).
The month with the least sunshine days is July (9.5 days).
Average UV index
Hartly, 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 and December (UV index 2).
Average cloud cover
Hartly, DE
The months with the most cloud cover are February and March (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 29).
Average visibility
Hartly, 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).
Hartly, Delaware, USA
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