Climate and monthly weather forecastIrwin, KY
Climate and monthly weather forecast
Weather in January
January, the same as December, is an icy winter month in Irwin, Kentucky, with an average temperature varying between 24.3°F (-4.3°C) and 37°F (2.8°C). The coldest time of the year is January, with temperatures averaging a high of 37°F (2.8°C) and a low of 24.3°F (-4.3°C). Weather in January »Weather in February
February, the last month of the winter in Irwin, is another cold month, with temperature in the range of an average high of 41.7°F (5.4°C) and an average low of 27°F (-2.8°C). The commencement of February introduces an average high-temperature of a still cold 41.7°F (5.4°C), closely mirroring the preceding month. Weather in February »Weather in March
March, the first month of the spring in Irwin, is a cool month, with an average temperature ranging between max 52.3°F (11.3°C) and min 35.4°F (1.9°C). As Irwin transitions into March, a rise in the average high-temperature is observed, moving from a cold 41.7°F (5.4°C) in February to a cool 52.3°F (11.3°C). Weather in March »Weather in April
April is an enjoyable spring month in Irwin, Kentucky, with an average temperature fluctuating between 64.2°F (17.9°C) and 45.1°F (7.3°C). Noticing a change, the average high-temperature during April moves from March's fresh 52.3°F (11.3°C) to a comfortable 64.2°F (17.9°C). Weather in April »Weather in May
May, the last month of the spring in Irwin, is a warm month, with temperature in the range of an average low of 54.5°F (12.5°C) and an average high of 73.9°F (23.3°C). The shift into May is characterized by a rise in the average high-temperature, transitioning from April's refreshing 64.2°F (17.9°C) to a warm 73.9°F (23.3°C). Weather in May »Weather in June
The first month of the summer, June, is also a moderately hot month in Irwin, Kentucky, with an average temperature varying between 61.3°F (16.3°C) and 82.2°F (27.9°C). The shift from May to June is marked by a slight increase in the average high-temperature, moving from 73.9°F (23.3°C) to a still warm 82.2°F (27.9°C). Weather in June »Weather in July
July, like June, in Irwin, Kentucky, is another warm summer month, with an average temperature fluctuating between 64.4°F (18°C) and 84.7°F (29.3°C). July is the month when Irwin experiences its warmest temperatures, averaging a high of 84.7°F (29.3°C) and a low of 64.4°F (18°C). In July, the average heat index is computed to be a torrid 95°F (35°C). Weather in July »Weather in August
The last month of the summer, August, is another warm month in Irwin, Kentucky, with temperature in the range of an average high of 83.8°F (28.8°C) and an average low of 62.8°F (17.1°C). August's average high-temperature stands at a still warm 83.8°F (28.8°C), showing little deviation from July's 84.7°F (29.3°C). Weather in August »Weather in September
The first month of the autumn, September, is still a warm month in Irwin, Kentucky, with an average temperature varying between 57.2°F (14°C) and 77.7°F (25.4°C). The onset of September aligns with a soft reduction in the average high-temperature, gently falling from 83.8°F (28.8°C) in August to a still moderately hot 77.7°F (25.4°C). Weather in September »Weather in October
October, like September, in Irwin, Kentucky, is another enjoyable autumn month, with an average temperature varying between 64.9°F (18.3°C) and 46.8°F (8.2°C). Irwin's October weather shows a moderate shift in high-temperatures, falling from September's moderately hot 77.7°F (25.4°C) to a comfortable 64.9°F (18.3°C). Weather in October »Weather in November
November, the last month of the autumn in Irwin, is also a fresh month, with temperature in the range of an average high of 52°F (11.1°C) and an average low of 36.5°F (2.5°C). With the onset of November, Irwin's average high-temperature adjusts, receding from October's enjoyable 64.9°F (18.3°C) to a cool 52°F (11.1°C). Weather in November »Weather in December
December, the first month of the winter in Irwin, is also an icy month, with an average temperature ranging between max 42.1°F (5.6°C) and min 31.1°F (-0.5°C). The start of December signals a decrease in the average high-temperature, transitioning from a fresh 52°F (11.1°C) in November to an icy 42.1°F (5.6°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
Irwin's temperature records reveal January as the coldest month, marked by average highs of 37°F (2.8°C) and lows of 24.3°F (-4.3°C).
In Irwin, during the entire year, the rain falls for 101.6 days and collects up to 8.15" (207mm) of precipitation.
Months with snowfall are January through April, October through December.
The months with the most snowfall are January and February, with an average 0.39" (10mm) of accumulated snow.
Throughout the year, there are 21.9 snowfall days, and 1.57" (40mm) of snow is accumulated.
January has the least sunshine of the year in Irwin, with an average of 4h of sunshine.
The months with the lowest UV index in Irwin, Kentucky, are January, February, November and December, with an average maximum UV index of 2.
February is the most humid month, with an average relative humidity of 82%.
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Irwin, 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, August through November, with an average relative humidity of 76%, are the least humid months.
May is the month with the most rainfall in Irwin. Rain falls for 11.5 days and accumulates 0.87" (22mm) of precipitation.
May through September are months without snowfall in Irwin.
June has the longest days of the year in Irwin, Kentucky, with an average of 14h and 48min of daylight.
The months with the highest UV index in Irwin, Kentucky, are June through August, with an average maximum UV index of 6.
July proves to be the warmest month, recording an average peak temperature of 84.7°F (29.3°C) and a minimum temperature of 64.4°F (18°C).
The month with the most sunshine in Irwin is August, with an average of 10.3h of sunshine.
The month with the least rainfall is September, when the rain falls for 7.6 days and typically collects 0.35" (9mm) of precipitation.
The month with the shortest days in Irwin is December, with an average of 9h and 30min of daylight.
Average temperature
Irwin, KY
The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is January (37°F).
The month with the highest average low temperature is July (64.4°F).
The coldest month (with the lowest average low temperature) is January (24.3°F).
Average pressure
Irwin, 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:
29.99"Hg - Average pressure in June:
29.95"Hg
- Average pressure in July:
29.98"Hg - Average pressure in August:
30"Hg - Average pressure in September:
30.04"Hg - Average pressure in October:
30.05"Hg - Average pressure in November:
30.15"Hg - Average pressure in December:
30.14"Hg
The months with the highest atmospheric pressure are January and November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed
Irwin, KY
- Average wind speed in January:
8.6mph - Average wind speed in February:
8.4mph - Average wind speed in March:
8mph - Average wind speed in April:
8.1mph - Average wind speed in May:
6.6mph - Average wind speed in June:
5.9mph
- Average wind speed in July:
5mph - Average wind speed in August:
5mph - Average wind speed in September:
5.5mph - Average wind speed in October:
6.6mph - Average wind speed in November:
7.2mph - Average wind speed in December:
7.9mph
The windiest month (with the highest average wind speed) is January (8.6mph).
The calmest months (with the lowest average wind speed) are July and August (5mph).
Average humidity
Irwin, KY
The month with the highest relative humidity is February (82%).
The months with the lowest relative humidity are April, August, September, October and November (76%).
Average rainfall
Irwin, KY
- Average rainfall in January:
0.51" - Average rainfall in February:
0.75" - Average rainfall in March:
0.75" - Average rainfall in April:
0.79" - Average rainfall in May:
0.87" - Average rainfall in June:
0.79"
- Average rainfall in July:
0.79" - Average rainfall in August:
0.67" - Average rainfall in September:
0.35" - Average rainfall in October:
0.55" - Average rainfall in November:
0.59" - Average rainfall in December:
0.75"
The wettest month (with the highest rainfall) is May (0.87").
The driest month (with the least rainfall) is September (0.35").
Average rainfall days
Irwin, KY
- Average rainfall days in January:
7.3 days - Average rainfall days in February:
6.9 days - Average rainfall days in March:
9.2 days - Average rainfall days in April:
9.5 days - Average rainfall days in May:
11.5 days - Average rainfall days in June:
10 days
- Average rainfall days in July:
11.3 days - Average rainfall days in August:
8.1 days - Average rainfall days in September:
7.6 days - Average rainfall days in October:
6.5 days - Average rainfall days in November:
6 days - Average rainfall days in December:
7.7 days
The month with the highest number of rainy days is May (11.5 days).
The month with the least rainy days is November (6 days).
Average snowfall
Irwin, KY
The months with the highest snowfall are January and February (0.39").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days
Irwin, KY
- Average snowfall days in January:
6.6 days - Average snowfall days in February:
5.8 days - Average snowfall days in March:
2.7 days - Average snowfall days in April:
0.8 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:
0.2 days - Average snowfall days in November:
1.5 days - Average snowfall days in December:
4.3 days
The month with the highest number of snowfall days is January (6.6 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight / Average sunshine
Irwin, KY
- Average daylight in January:
9h and 48min - 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 36min - 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 30min
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 30min).
- Average sunshine in January:
4h and 0min - Average sunshine in February:
5h and 6min - Average sunshine in March:
5h and 54min - Average sunshine in April:
7h and 48min - Average sunshine in May:
9h and 6min - Average sunshine in June:
10h and 12min
- Average sunshine in July:
10h and 0min - Average sunshine in August:
10h and 18min - Average sunshine in September:
8h and 18min - Average sunshine in October:
6h and 30min - Average sunshine in November:
5h and 36min - Average sunshine in December:
4h and 12min
The month with the most sunshine is August (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).
Average sunshine days
Irwin, KY
- Average sunshine days in January:
20.8 days - Average sunshine days in February:
17.5 days - Average sunshine days in March:
18.8 days - Average sunshine days in April:
18 days - Average sunshine days in May:
15.1 days - Average sunshine days in June:
15.8 days
- Average sunshine days in July:
15.4 days - Average sunshine days in August:
19.8 days - Average sunshine days in September:
19.7 days - Average sunshine days in October:
21.6 days - Average sunshine days in November:
22.3 days - Average sunshine days in December:
20.5 days
The month with the most sunshine days is November (22.3 days).
The month with the least sunshine days is May (15.1 days).
Average UV index
Irwin, KY
The months with the highest UV index are 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
Irwin, KY
The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 29).
Average visibility
Irwin, KY
The months with the highest visibility are January, February, March, April, June, October, November and December (6mi).
The months with the lowest visibility are May, July, August and September (5mi).
