Climate and monthly weather forecastGrigsby, KY
Climate and monthly weather forecast
Weather in January
January, the same as December, is another cold winter month in Grigsby, Kentucky, with an average temperature fluctuating between 27°F (-2.8°C) and 40.6°F (4.8°C). Grigsby's coldest temperatures are experienced in January, with average high temperatures of 40.6°F (4.8°C) and lows of 27°F (-2.8°C). Weather in January »Weather in February
February, the last month of the winter in Grigsby, is a chilly month, with an average temperature fluctuating between 45.1°F (7.3°C) and 30.4°F (-0.9°C). The average high-temperature during February registers at a frosty 45.1°F (7.3°C), closely corresponding to the preceding month. Weather in February »Weather in March
March, the first month of the spring in Grigsby, is a fresh month, with an average temperature fluctuating between 37.4°F (3°C) and 54.3°F (12.4°C). March marks a rise in the average high-temperature, moving from February's frosty 45.1°F (7.3°C) to a cool 54.3°F (12.4°C). Weather in March »Weather in April
April is a refreshing spring month in Grigsby, Kentucky, with temperature in the range of an average low of 45.9°F (7.7°C) and an average high of 65.8°F (18.8°C). April shows a rise in the average high-temperature, moving from March's cool 54.3°F (12.4°C) 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 Grigsby, Kentucky, with an average temperature varying between 75°F (23.9°C) and 53.8°F (12.1°C). Grigsby sees an increase in average high-temperatures during May, moving from a comfortable 65.8°F (18.8°C) in April to a moderately hot 75°F (23.9°C). Weather in May »Weather in June
June, the first month of the summer in Grigsby, is still a warm month, with temperature in the range of an average high of 82.4°F (28°C) and an average low of 59.5°F (15.3°C). As June arrives, a slight rise in the average high-temperature is observed, moving from 75°F (23.9°C) in May to a still moderately hot 82.4°F (28°C). Weather in June »Weather in July
July, like June, in Grigsby, Kentucky, is another warm summer month, with an average temperature varying between 63°F (17.2°C) and 85.3°F (29.6°C). The warmest time of the year is July, with temperatures averaging a high of 85.3°F (29.6°C) and a low of 63°F (17.2°C). The heat index in July is estimated at a sweltering 96.8°F (36°C). Weather in July »Weather in August
August, the last month of the summer in Grigsby, is also a moderately hot month, with an average temperature varying between 84.2°F (29°C) and 61°F (16.1°C). Transitioning into August, Grigsby records an average high-temperature of a still moderately hot 84.2°F (29°C), almost identical to July's 85.3°F (29.6°C). Weather in August »Weather in September
September, the first month of the autumn in Grigsby, is also a moderately hot month, with an average temperature varying between 56.3°F (13.5°C) and 78.3°F (25.7°C). September brings a slight decrease in the average high-temperature, shifting from a warm 84.2°F (29°C) in August to a still moderately hot 78.3°F (25.7°C). Weather in September »Weather in October
October, the same as September, is another enjoyable autumn month in Grigsby, Kentucky, with an average temperature ranging between max 66.4°F (19.1°C) and min 46.9°F (8.3°C). Stepping into October, Grigsby observes a temperature decline, with the average high falling from September's warm 78.3°F (25.7°C) to a refreshing 66.4°F (19.1°C). Weather in October »Weather in November
November, the last month of the autumn in Grigsby, is another cool month, with an average temperature fluctuating between 37.2°F (2.9°C) and 54°F (12.2°C). November brings a drop in Grigsby's average high-temperature, falling from a comfortable 66.4°F (19.1°C) in October to a fresh 54°F (12.2°C). Weather in November »Weather in December
The first month of the winter, December, is also a frosty month in Grigsby, Kentucky, with an average temperature varying between 45.1°F (7.3°C) and 33.1°F (0.6°C). The start of December comes with a small reduction in the average high-temperature, subtly receding from a cool 54°F (12.2°C) in November to a chilly 45.1°F (7.3°C). Weather in December »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Grigsby, KY
The warmest month (with the highest average high temperature) is July (85.3°F).
The month with the lowest average high temperature is January (40.6°F).
The month with the highest average low temperature is July (63°F).
The coldest month (with the lowest average low temperature) is January (27°F).
Average pressure
Grigsby, KY
- Average pressure in January:
30.16"Hg - Average pressure in February:
30.12"Hg - Average pressure in March:
30.09"Hg - Average pressure in April:
29.99"Hg - Average pressure in May:
30.01"Hg - Average pressure in June:
29.98"Hg
- Average pressure in July:
30.01"Hg - Average pressure in August:
30.01"Hg - Average pressure in September:
30.05"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 (29.98"Hg).
Average wind speed
Grigsby, KY
- Average wind speed in January:
6.6mph - Average wind speed in February:
6.6mph - Average wind speed in March:
6.5mph - Average wind speed in April:
6.7mph - Average wind speed in May:
5.7mph - Average wind speed in June:
5mph
The windiest month (with the highest average wind speed) is April (6.7mph).
The calmest month (with the lowest average wind speed) is August (4mph).
Average humidity
Grigsby, KY
The months with the highest relative humidity are February and December (80%).
The month with the lowest relative humidity is November (75%).
Average rainfall
Grigsby, KY
- Average rainfall in January:
1.89" - Average rainfall in February:
2.76" - Average rainfall in March:
1.81" - Average rainfall in April:
2.09" - Average rainfall in May:
2.44" - Average rainfall in June:
2.13"
- Average rainfall in July:
2.4" - Average rainfall in August:
1.89" - Average rainfall in September:
1.46" - Average rainfall in October:
2.01" - Average rainfall in November:
1.61" - Average rainfall in December:
2.36"
The wettest month (with the highest rainfall) is February (2.76").
The driest month (with the least rainfall) is September (1.46").
Average rainfall days
Grigsby, KY
- Average rainfall days in January:
11.3 days - Average rainfall days in February:
11 days - Average rainfall days in March:
14.3 days - Average rainfall days in April:
14.8 days - Average rainfall days in May:
18.6 days - Average rainfall days in June:
16.7 days
- Average rainfall days in July:
18 days - Average rainfall days in August:
15.7 days - Average rainfall days in September:
13.4 days - Average rainfall days in October:
12.8 days - Average rainfall days in November:
10.5 days - Average rainfall days in December:
11.7 days
The month with the highest number of rainy days is May (18.6 days).
The month with the least rainy days is November (10.5 days).
Average snowfall
Grigsby, KY
The month with the highest snowfall is February (3.15").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days
Grigsby, KY
- Average snowfall days in January:
10.3 days - Average snowfall days in February:
8.9 days - Average snowfall days in March:
4.4 days - Average snowfall days in April:
0.7 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:
0.5 days - Average snowfall days in November:
2.4 days - Average snowfall days in December:
6.1 days
The month with the highest number of snowfall days is January (10.3 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight / Average sunshine
Grigsby, 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 18min - Average sunshine in March:
6h and 6min - Average sunshine in April:
8h and 12min - Average sunshine in May:
9h and 18min - Average sunshine in June:
10h and 6min
- Average sunshine in July:
10h and 6min - Average sunshine in August:
10h and 6min - Average sunshine in September:
8h and 18min - Average sunshine in October:
6h and 30min - Average sunshine in November:
5h and 48min - Average sunshine in December:
4h and 42min
The months with the most sunshine are June, July and August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 18min).
Average sunshine days
Grigsby, KY
- Average sunshine days in January:
12.7 days - Average sunshine days in February:
10.4 days - Average sunshine days in March:
12 days - Average sunshine days in April:
12.7 days - Average sunshine days in May:
9.7 days - Average sunshine days in June:
11.2 days
- Average sunshine days in July:
10.6 days - Average sunshine days in August:
11.9 days - Average sunshine days in September:
14 days - Average sunshine days in October:
16.5 days - Average sunshine days in November:
17.3 days - Average sunshine days in December:
14 days
The month with the most sunshine days is November (17.3 days).
The month with the least sunshine days is May (9.7 days).
Average UV index
Grigsby, KY
The months with the highest UV index are May, June and August (UV index 6).
The months with the lowest UV index are January, February and December (UV index 2).
Average cloud cover
Grigsby, KY
The month with the most cloud cover is February (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility
Grigsby, KY
The months with the highest visibility are April, October and November (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September and December (5mi).





