Climate and monthly weather forecastGrahn, KY
Climate and monthly weather forecast
Weather in January
January, the same as December, is a wintry winter month in Grahn, Kentucky, with temperature in the range of an average high of 38.7°F (3.7°C) and an average low of 25.5°F (-3.6°C). Temperature records mark January as the coldest month, with highs averaging 38.7°F (3.7°C) and lows at 25.5°F (-3.6°C). Weather in January »Weather in February
The last month of the winter, February, is a chilly month in Grahn, Kentucky, with an average temperature fluctuating between 28.8°F (-1.8°C) and 43.3°F (6.3°C). An average high-temperature of a chilly 43.3°F (6.3°C) marks February, exhibiting a close resemblance to the conditions in January. Weather in February »Weather in March
March, the first month of the spring in Grahn, is a fresh month, with an average temperature varying between 53.1°F (11.7°C) and 36.5°F (2.5°C). March brings a rise in the average high-temperature, transitioning from February's chilly 43.3°F (6.3°C) to a cool 53.1°F (11.7°C). Weather in March »Weather in April
April in Grahn, Kentucky, is a comfortable spring month, with an average temperature ranging between max 65.8°F (18.8°C) and min 45.9°F (7.7°C). The onset of April brings a rise in the average high-temperature, elevating from a fresh 53.1°F (11.7°C) in March to a comfortable 65.8°F (18.8°C). Weather in April »Weather in May
The last month of the spring, May, is a warm month in Grahn, Kentucky, with an average temperature fluctuating between 75.6°F (24.2°C) and 55°F (12.8°C). The shift into May is accompanied by a temperature increase, with the average high-temperature rising from a refreshing 65.8°F (18.8°C) in April to a moderately hot 75.6°F (24.2°C). Weather in May »Weather in June
The first month of the summer, June, is still a warm month in Grahn, Kentucky, with an average temperature ranging between max 83.3°F (28.5°C) and min 61.3°F (16.3°C). Grahn's June weather indicates a minor increase in high-temperatures, edging from May's warm 75.6°F (24.2°C) to a still moderately hot 83.3°F (28.5°C). Weather in June »Weather in July
July in Grahn, Kentucky, is a tropical summer month, with an average temperature ranging between min 64.8°F (18.2°C) and max 86.9°F (30.5°C). July is the month when Grahn experiences its warmest temperatures, averaging a high of 86.9°F (30.5°C) and a low of 64.8°F (18.2°C). July's heat index is computed to be a sweltering 100.4°F (38°C). Weather in July »Weather in August
August, the last month of the summer in Grahn, is also a moderately hot month, with temperature in the range of an average low of 62.6°F (17°C) and an average high of 85.3°F (29.6°C). Shifting into August, Grahn records an average high-temperature of a warm 85.3°F (29.6°C), presenting minor fluctuations compared to the previous month. Weather in August »Weather in September
The first month of the autumn, September, is also a moderately hot month in Grahn, Kentucky, with an average temperature ranging between max 78.8°F (26°C) and min 57.4°F (14.1°C). The start of September involves a subtle temperature drop, shifting from a warm 85.3°F (29.6°C) in August to a still moderately hot 78.8°F (26°C). Weather in September »Weather in October
October, like September, in Grahn, Kentucky, is another enjoyable autumn month, with an average temperature fluctuating between 66°F (18.9°C) and 47.3°F (8.5°C). October's onset corresponds with a shift in the average high-temperature, moving from a moderately hot 78.8°F (26°C) in September to a comfortable 66°F (18.9°C). Weather in October »Weather in November
November, the last month of the autumn in Grahn, is also a fresh month, with an average temperature ranging between min 37°F (2.8°C) and max 52.9°F (11.6°C). November's onset brings a slight change in high-temperatures, falling from a refreshing 66°F (18.9°C) in October to a fresh 52.9°F (11.6°C). Weather in November »Weather in December
The first month of the winter, December, is still a chilly month in Grahn, Kentucky, with an average temperature fluctuating between 32°F (0°C) and 43.7°F (6.5°C). The arrival of December indicates a decrease in the average high-temperature, moving from a fresh 52.9°F (11.6°C) in November to a chilly 43.7°F (6.5°C). Weather in December »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Grahn, KY
The warmest month (with the highest average high temperature) is July (86.9°F).
The month with the lowest average high temperature is January (38.7°F).
The month with the highest average low temperature is July (64.8°F).
The coldest month (with the lowest average low temperature) is January (25.5°F).
Average pressure
Grahn, KY
- Average pressure in January:
30.15"Hg - Average pressure in February:
30.11"Hg - Average pressure in March:
30.09"Hg - Average pressure in April:
29.98"Hg - Average pressure in May:
30"Hg - Average pressure in June:
29.96"Hg
- Average pressure in July:
30"Hg - Average pressure in August:
30"Hg - Average pressure in September:
30.05"Hg - Average pressure in October:
30.05"Hg - Average pressure in November:
30.16"Hg - Average pressure in December:
30.14"Hg
The month with the highest atmospheric pressure is November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).
Average wind speed
Grahn, KY
- Average wind speed in January:
7.5mph - Average wind speed in February:
7.3mph - Average wind speed in March:
7.1mph - Average wind speed in April:
7.2mph - Average wind speed in May:
6.1mph - Average wind speed in June:
5.4mph
- Average wind speed in July:
4.7mph - Average wind speed in August:
4.5mph - Average wind speed in September:
4.9mph - Average wind speed in October:
5.8mph - Average wind speed in November:
6.2mph - Average wind speed in December:
6.9mph
The windiest month (with the highest average wind speed) is January (7.5mph).
The calmest month (with the lowest average wind speed) is August (4.5mph).
Average humidity
Grahn, KY
The month with the highest relative humidity is February (81%).
The month with the lowest relative humidity is August (74%).
Average rainfall
Grahn, KY
- Average rainfall in January:
2.28" - Average rainfall in February:
3.07" - Average rainfall in March:
2.83" - Average rainfall in April:
3.11" - Average rainfall in May:
2.99" - Average rainfall in June:
2.83"
- Average rainfall in July:
2.87" - Average rainfall in August:
2.28" - Average rainfall in September:
1.97" - Average rainfall in October:
2.13" - Average rainfall in November:
2.05" - Average rainfall in December:
3.15"
The wettest month (with the highest rainfall) is December (3.15").
The driest month (with the least rainfall) is September (1.97").
Average rainfall days
Grahn, KY
- Average rainfall days in January:
11.3 days - Average rainfall days in February:
11.8 days - Average rainfall days in March:
15.6 days - Average rainfall days in April:
16.3 days - Average rainfall days in May:
19 days - Average rainfall days in June:
16.2 days
- Average rainfall days in July:
18.3 days - Average rainfall days in August:
13.9 days - Average rainfall days in September:
12.7 days - Average rainfall days in October:
12.5 days - Average rainfall days in November:
10.6 days - Average rainfall days in December:
12.7 days
The month with the highest number of rainy days is May (19 days).
The month with the least rainy days is November (10.6 days).
Average snowfall
Grahn, KY
The month with the highest snowfall is January (2.99").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days
Grahn, KY
- Average snowfall days in January:
9.8 days - Average snowfall days in February:
9.3 days - Average snowfall days in March:
5.4 days - Average snowfall days in April:
0.7 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:
0.4 days - Average snowfall days in November:
3 days - Average snowfall days in December:
7.2 days
The month with the highest number of snowfall days is January (9.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Grahn, 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 18min - Average daylight in June:
14h and 48min
- Average daylight in July:
14h and 30min - 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 6min - Average daylight in December:
9h and 36min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in January:
3h and 54min - Average sunshine in February:
5h and 6min - Average sunshine in March:
5h and 54min - Average sunshine in April:
7h and 54min - Average sunshine in May:
9h and 6min - Average sunshine in June:
10h and 12min
- Average sunshine in July:
9h and 54min - Average sunshine in August:
10h and 12min - Average sunshine in September:
8h and 24min - Average sunshine in October:
6h and 24min - Average sunshine in November:
5h and 42min - Average sunshine in December:
4h and 12min
The months with the most sunshine are June and August (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days
Grahn, KY
- Average sunshine days in January:
12.6 days - Average sunshine days in February:
9.8 days - Average sunshine days in March:
11.2 days - Average sunshine days in April:
11.4 days - Average sunshine days in May:
10.5 days - Average sunshine days in June:
11.3 days
- Average sunshine days in July:
10.8 days - Average sunshine days in August:
13.8 days - Average sunshine days in September:
15.7 days - Average sunshine days in October:
16.9 days - Average sunshine days in November:
16.6 days - Average sunshine days in December:
13.3 days
The month with the most sunshine days is October (16.9 days).
The month with the least sunshine days is February (9.8 days).
Average UV index
Grahn, 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
Grahn, KY
The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility
Grahn, KY
The months with the highest visibility are March, April, June, October and November (6mi).
The months with the lowest visibility are January, February, May, July, August, September and December (5mi).





