Climate and monthly weather forecastHartley, KY
Climate and monthly weather forecast
Weather in January
January, the same as December, is an icy winter month in Hartley, Kentucky, with an average temperature varying between 39.9°F (4.4°C) and 26.4°F (-3.1°C). Hartley, Kentucky, experiences its lowest average temperatures in January, reaching a peak of 39.9°F (4.4°C) and a minimum of 26.4°F (-3.1°C). Weather in January »Weather in February
February, the last month of the winter in Hartley, is a chilly month, with an average temperature fluctuating between 44.4°F (6.9°C) and 29.7°F (-1.3°C). As February unfolds, the average high-temperature reaches a frosty 44.4°F (6.9°C), hinting at a slight fluctuation from the previous month. Weather in February »Weather in March
The first month of the spring, March, is a cool month in Hartley, Kentucky, with temperature in the range of an average high of 53.4°F (11.9°C) and an average low of 36.5°F (2.5°C). Hartley's weather in March presents a rise in the average high-temperature, moving from a chilly 44.4°F (6.9°C) in February to a cool 53.4°F (11.9°C). Weather in March »Weather in April
April in Hartley, Kentucky, is a comfortable spring month, with an average temperature ranging between max 64.8°F (18.2°C) and min 45.3°F (7.4°C). An increase in the average high-temperature marks April, moving from March's cool 53.4°F (11.9°C) to a comfortable 64.8°F (18.2°C). Weather in April »Weather in May
May, the last month of the spring in Hartley, is a moderately hot month, with temperature in the range of an average low of 53.1°F (11.7°C) and an average high of 74.1°F (23.4°C). The start of May is characterized by an increase in the average high-temperature, transitioning from an enjoyable 64.8°F (18.2°C) in April to a moderately hot 74.1°F (23.4°C). Weather in May »Weather in June
The first month of the summer, June, is also a moderately hot month in Hartley, Kentucky, with an average temperature fluctuating between 81.1°F (27.3°C) and 58.8°F (14.9°C). June introduces a minor temperature shift, with average high-temperatures adjusting from May's 74.1°F (23.4°C) to a still moderately hot 81.1°F (27.3°C). Weather in June »Weather in July
July, like June, in Hartley, Kentucky, is a moderately hot summer month, with an average temperature ranging between min 62.1°F (16.7°C) and max 83.8°F (28.8°C). Hartley's July weather, with an average high temperature of 83.8°F (28.8°C) and an average low temperature of 62.1°F (16.7°C), tends to be the warmest of the year. In July, the heat index is evaluated at a tropical 93.2°F (34°C). Weather in July »Weather in August
August, the last month of the summer in Hartley, is also a moderately hot month, with an average temperature fluctuating between 59.9°F (15.5°C) and 82.9°F (28.3°C). As July transitions into August, the average high-temperature rests at a still moderately hot 82.9°F (28.3°C), maintaining a close resemblance to the previous month. Weather in August »Weather in September
The first month of the autumn, September, is still a warm month in Hartley, Kentucky, with temperature in the range of an average low of 55.8°F (13.2°C) and an average high of 77.5°F (25.3°C). During the shift to September, a minor reduction in average high-temperature is observed, shifting from a warm 82.9°F (28.3°C) in August to a still moderately hot 77.5°F (25.3°C). Weather in September »Weather in October
October, the same as September, is another refreshing autumn month in Hartley, Kentucky, with an average temperature ranging between min 45.9°F (7.7°C) and max 65.3°F (18.5°C). Arrival of October comes with a reduction in the average high-temperature, falling from a warm 77.5°F (25.3°C) in September to an enjoyable 65.3°F (18.5°C). Weather in October »Weather in November
November, the last month of the autumn in Hartley, is another cool month, with an average temperature fluctuating between 53.4°F (11.9°C) and 36.9°F (2.7°C). A subtle decrease in the average high-temperature marks November, falling from October's enjoyable 65.3°F (18.5°C) to a cool 53.4°F (11.9°C). Weather in November »Weather in December
December, the first month of the winter in Hartley, is also a frosty month, with an average temperature fluctuating between 32.4°F (0.2°C) and 45.1°F (7.3°C). December's onset corresponds with a subtle shift in the average high-temperature, slightly moving from a fresh 53.4°F (11.9°C) in November to a chilly 45.1°F (7.3°C). Weather in December »Updated: Feb 12, 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
Hartley, Kentucky, records the coldest temperatures in January, averaging a high of 39.9°F (4.4°C) and a low of 26.4°F (-3.1°C).
In Hartley, during the entire year, the rain falls for 201.6 days and collects up to 40.75" (1035mm) of precipitation.
Months with snowfall in Hartley, Kentucky, are January through May, October through December.
Throughout the year, in Hartley, there are 46.1 snowfall days, and 24.8" (630mm) of snow is accumulated.
The month with the least sunshine in Hartley is January, with an average of 4.3h of sunshine.
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2.
With an average relative humidity of 81%, February is the most humid month in Hartley.
February is the month with the most snowfall. Snow falls for 11.3 days and accumulates 6.06" (154mm) of snow.
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Hartley, Kentucky, 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.
April and November, with an average relative humidity of 76%, are the least humid months in Hartley.
May is the month with the most rainfall. Rain falls for 22.2 days and accumulates 4.21" (107mm) of precipitation.
May through August, with an average maximum UV index of 6, are months with the highest UV index in Hartley, Kentucky.
In Hartley, Kentucky, snow does not fall in June through September.
June has the longest days of the year in Hartley, Kentucky, with an average of 14h and 42min of daylight.
The months with the most sunshine in Hartley, Kentucky, are June and August, with an average of 10h of sunshine.
July stands out as Hartley's warmest month, with temperatures ranging between an average high of 83.8°F (28.8°C) and a low of 62.1°F (16.7°C).
The month with the least rainfall in Hartley, Kentucky, is September, when the rain falls for 16.9 days and typically collects 2.48" (63mm) of precipitation.
With an average of 9h and 36min of daylight, December has the shortest days of the year in Hartley.
Average temperature
Hartley, KY
The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is January (39.9°F).
The month with the highest average low temperature is July (62.1°F).
The coldest month (with the lowest average low temperature) is January (26.4°F).
Average pressure
Hartley, KY
- Average pressure in January:
30.16"Hg - Average pressure in February:
30.12"Hg - Average pressure in March:
30.1"Hg - Average pressure in April:
30"Hg - Average pressure in May:
30.02"Hg - Average pressure in June:
29.99"Hg
- Average pressure in July:
30.02"Hg - Average pressure in August:
30.02"Hg - Average pressure in September:
30.06"Hg - Average pressure in October:
30.06"Hg - Average pressure in November:
30.16"Hg - Average pressure in December:
30.14"Hg
The months with the highest atmospheric pressure are January and November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.99"Hg).
Average wind speed
Hartley, KY
- Average wind speed in January:
6.5mph - Average wind speed in February:
6.5mph - Average wind speed in March:
6.3mph - Average wind speed in April:
6.7mph - Average wind speed in May:
5.5mph - Average wind speed in June:
4.8mph
- Average wind speed in July:
4.2mph - Average wind speed in August:
3.9mph - Average wind speed in September:
4.1mph - Average wind speed in October:
5mph - Average wind speed in November:
5.3mph - Average wind speed in December:
5.9mph
The windiest month (with the highest average wind speed) is April (6.7mph).
The calmest month (with the lowest average wind speed) is August (3.9mph).
Average humidity
Hartley, KY
The month with the highest relative humidity is February (81%).
The months with the lowest relative humidity are April and November (76%).
Average rainfall
Hartley, KY
- Average rainfall in January:
3.07" - Average rainfall in February:
4.02" - Average rainfall in March:
3.23" - Average rainfall in April:
3.46" - Average rainfall in May:
4.21" - Average rainfall in June:
3.98"
- Average rainfall in July:
3.78" - Average rainfall in August:
3.03" - Average rainfall in September:
2.48" - Average rainfall in October:
3.19" - Average rainfall in November:
2.64" - Average rainfall in December:
3.66"
The wettest month (with the highest rainfall) is May (4.21").
The driest month (with the least rainfall) is September (2.48").
Average rainfall days
Hartley, KY
- Average rainfall days in January:
13.9 days - Average rainfall days in February:
12.3 days - Average rainfall days in March:
18.1 days - Average rainfall days in April:
18.3 days - Average rainfall days in May:
22.2 days - Average rainfall days in June:
20.2 days
- Average rainfall days in July:
20.8 days - Average rainfall days in August:
18.4 days - Average rainfall days in September:
16.9 days - Average rainfall days in October:
14.5 days - Average rainfall days in November:
12.4 days - Average rainfall days in December:
13.6 days
The month with the highest number of rainy days is May (22.2 days).
The month with the least rainy days is February (12.3 days).
Average snowfall
Hartley, KY
- Average snowfall in January:
5.87" - Average snowfall in February:
6.06" - Average snowfall in March:
3.54" - Average snowfall in April:
0.83" - Average snowfall in May:
0.24" - Average snowfall in June:
0"
The month with the highest snowfall is February (6.06").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Hartley, KY
- Average snowfall days in January:
12.4 days - Average snowfall days in February:
11.3 days - Average snowfall days in March:
6.3 days - Average snowfall days in April:
1.4 days - Average snowfall days in May:
0.3 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:
0.9 days - Average snowfall days in November:
3.5 days - Average snowfall days in December:
10 days
The month with the highest number of snowfall days is January (12.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Hartley, KY
- Average daylight in January:
9h and 54min - Average daylight in February:
10h and 48min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 12min - Average daylight in May:
14h and 12min - Average daylight in June:
14h and 42min
- Average daylight in July:
14h and 24min - Average daylight in August:
13h and 36min - Average daylight in September:
12h and 24min - Average daylight in October:
11h and 12min - Average daylight in November:
10h and 12min - Average daylight in December:
9h and 36min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in January:
4h and 18min - Average sunshine in February:
5h and 6min - Average sunshine in March:
6h and 12min - Average sunshine in April:
8h and 6min - Average sunshine in May:
9h and 12min - Average sunshine in June:
10h and 0min
- Average sunshine in July:
9h and 54min - Average sunshine in August:
10h and 0min - Average sunshine in September:
8h and 12min - Average sunshine in October:
6h and 18min - Average sunshine in November:
5h and 42min - Average sunshine in December:
4h and 42min
The months with the most sunshine are June and August (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 4h and 18min).
Average sunshine days
Hartley, KY
- Average sunshine days in January:
9.8 days - Average sunshine days in February:
8.3 days - Average sunshine days in March:
8.7 days - Average sunshine days in April:
9.7 days - Average sunshine days in May:
6.8 days - Average sunshine days in June:
8.2 days
- Average sunshine days in July:
8.2 days - Average sunshine days in August:
10.2 days - Average sunshine days in September:
11 days - Average sunshine days in October:
13.6 days - Average sunshine days in November:
15.4 days - Average sunshine days in December:
11.1 days
The month with the most sunshine days is November (15.4 days).
The month with the least sunshine days is May (6.8 days).
Average UV index
Hartley, KY
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
Hartley, KY
The month with the most cloud cover is February (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 34).
Average visibility
Hartley, KY
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).
