Climate and monthly weather forecastRadnor, IN
Climate and monthly weather forecast
Weather in January
January, the same as December, in Radnor, Indiana, is another subzero cold winter month, with an average temperature varying between 31.3°F (-0.4°C) and 19.4°F (-7°C). Radnor experiences its lowest average temperatures in January, reaching a peak of 31.3°F (-0.4°C) and a minimum of 19.4°F (-7°C). Weather in January »Weather in February
The last month of the winter, February, is a cold month in Radnor, Indiana, with temperature in the range of an average low of 23.2°F (-4.9°C) and an average high of 36.1°F (2.3°C). January's transformation into February witnesses an average high-temperature of a cold 36.1°F (2.3°C), noting a minor change from the preceding month. Weather in February »Weather in March
The first month of the spring, March, is a frosty month in Radnor, Indiana, with an average temperature fluctuating between 33.4°F (0.8°C) and 48.2°F (9°C). Radnor's weather in March shows a rise in the average high-temperature, moving up from February's wintry 36.1°F (2.3°C) to a frosty 48.2°F (9°C). Weather in March »Weather in April
April is a moderate spring month in Radnor, Indiana, with an average temperature ranging between max 60.1°F (15.6°C) and min 43.7°F (6.5°C). The start of April is characterized by an increase in the average high-temperature, transitioning from a frosty 48.2°F (9°C) in March to a moderate 60.1°F (15.6°C). Weather in April »Weather in May
May, the last month of the spring in Radnor, is an agreeable month, with an average temperature fluctuating between 54.7°F (12.6°C) and 71.6°F (22°C). With the onset of May, Radnor's weather sees a temperature rise, transitioning from a refreshing 60.1°F (15.6°C) in April to a pleasant 71.6°F (22°C). Weather in May »Weather in June
The first month of the summer, June, is a moderately hot month in Radnor, Indiana, with an average temperature varying between 79.3°F (26.3°C) and 62.2°F (16.8°C). June introduces a minor temperature shift, with average high-temperatures adjusting from May's agreeable 71.6°F (22°C) to a moderately hot 79.3°F (26.3°C). Weather in June »Weather in July
July, like June, in Radnor, Indiana, is another warm summer month, with an average temperature fluctuating between 81°F (27.2°C) and 64°F (17.8°C). July, recognised by an average high temperature of 81°F (27.2°C) and a low of 64°F (17.8°C), is Radnor's warmest month. For most parts of July, the heat index is calculated to be a tropical 87.8°F (31°C). Weather in July »Weather in August
The last month of the summer, August, is another warm month in Radnor, Indiana, with temperature in the range of an average high of 79.7°F (26.5°C) and an average low of 62.2°F (16.8°C). Radnor transitions into August recording an average high-temperature of a still moderately hot 79.7°F (26.5°C), closely aligning with the preceding month's temperature. Weather in August »Weather in September
The first month of the autumn, September, is still a warm month in Radnor, Indiana, with an average temperature fluctuating between 75°F (23.9°C) and 56.8°F (13.8°C). The high-temperature average in September for Radnor is a still warm 75°F (23.9°C), staying closely aligned with August's conditions. Weather in September »Weather in October
October, the same as September, is another refreshing autumn month in Radnor, Indiana, with an average temperature fluctuating between 46.6°F (8.1°C) and 62.4°F (16.9°C). Transition from September to October is accompanied by a temperature drop, with average high-temperatures decreasing from a warm 75°F (23.9°C) to an enjoyable 62.4°F (16.9°C). Weather in October »Weather in November
The last month of the autumn, November, is another chilly month in Radnor, Indiana, with an average temperature varying between 48.2°F (9°C) and 35.1°F (1.7°C). Radnor in November undergoes a mild reduction in the average high-temperature, shifting from October's enjoyable 62.4°F (16.9°C) to a chilly 48.2°F (9°C). Weather in November »Weather in December
The first month of the winter, December, is still a cold month in Radnor, Indiana, with an average temperature varying between 37°F (2.8°C) and 27.1°F (-2.7°C). Radnor's average high-temperature decreases in December, falling from a frosty 48.2°F (9°C) in November to a cold 37°F (2.8°C). Weather in December »Updated: Aug 25, 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
The coldest time of the year is January, with temperatures averaging a high of 31.3°F (-0.4°C) and a low of 19.4°F (-7°C).
Throughout the year, there are 143.1 rainfall days, and 20.91" (531mm) of precipitation is accumulated.
January through April, October through December are months with snowfall.
In Radnor, Indiana, during the entire year, snow falls for 37.1 days and aggregates up to 8.15" (207mm) of snow.
January has the least sunshine of the year, with an average of 3.8h of sunshine.
The month with the most snowfall is February, when snow falls for 8.7 days and typically aggregates up to 2.44" (62mm) of snow.
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, 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 is the month with the most rainfall. Rain falls for 14.8 days and accumulates 2.64" (67mm) of precipitation.
In Radnor, snow does not fall in May through September.
June has the longest days of the year, with an average of 15h and 0min of daylight.
June and July, with an average of 10h of sunshine, are months with the most sunshine in Radnor.
The months with the highest UV index are June and July, with an average maximum UV index of 6.
July tends to be the warmest month, with temperatures averaging a daily high of 81°F (27.2°C) and a low of 64°F (17.8°C).
With an average relative humidity of 84%, July is the most humid month.
October is the least humid month, with an average relative humidity of 72%.
December is the month with the least rainfall. Rain falls for 8.6 days and accumulates 1.18" (30mm) of precipitation.
With an average of 9h and 18min of daylight, December has the shortest days of the year.
December is the month with the lowest UV index in Radnor, with an average maximum UV index of 1.
Average temperature
Radnor, IN
The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (31.3°F).
The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (19.4°F).
Average pressure
Radnor, IN
- Average pressure in January:
30.12"Hg - Average pressure in February:
30.1"Hg - Average pressure in March:
30.08"Hg - Average pressure in April:
29.95"Hg - Average pressure in May:
29.97"Hg - Average pressure in June:
29.93"Hg
- Average pressure in July:
29.98"Hg - Average pressure in August:
29.98"Hg - Average pressure in September:
30.03"Hg - Average pressure in October:
30.02"Hg - Average pressure in November:
30.12"Hg - Average pressure in December:
30.11"Hg
The months with the highest atmospheric pressure are January and November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed
Radnor, IN
- Average wind speed in January:
10.3mph - Average wind speed in February:
10.1mph - Average wind speed in March:
9.8mph - Average wind speed in April:
10mph - Average wind speed in May:
8.5mph - Average wind speed in June:
7.5mph
- Average wind speed in July:
6.2mph - Average wind speed in August:
6.2mph - Average wind speed in September:
7mph - Average wind speed in October:
8.9mph - Average wind speed in November:
9.5mph - Average wind speed in December:
9.5mph
The windiest month (with the highest average wind speed) is January (10.3mph).
The calmest months (with the lowest average wind speed) are July and August (6.2mph).
Average humidity
Radnor, IN
The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (72%).
Average rainfall
Radnor, IN
- Average rainfall in January:
1.34" - Average rainfall in February:
1.22" - Average rainfall in March:
2.01" - Average rainfall in April:
2.64" - Average rainfall in May:
2.56" - Average rainfall in June:
2.13"
- Average rainfall in July:
1.97" - Average rainfall in August:
1.85" - Average rainfall in September:
1.26" - Average rainfall in October:
1.46" - Average rainfall in November:
1.3" - Average rainfall in December:
1.18"
The wettest month (with the highest rainfall) is April (2.64").
The driest month (with the least rainfall) is December (1.18").
Average rainfall days
Radnor, IN
- Average rainfall days in January:
6 days - Average rainfall days in February:
6.2 days - Average rainfall days in March:
11.8 days - Average rainfall days in April:
14.8 days - Average rainfall days in May:
18.1 days - Average rainfall days in June:
15.8 days
- Average rainfall days in July:
15.4 days - Average rainfall days in August:
13.5 days - Average rainfall days in September:
11.9 days - Average rainfall days in October:
11.8 days - Average rainfall days in November:
9.2 days - Average rainfall days in December:
8.6 days
The month with the highest number of rainy days is May (18.1 days).
The month with the least rainy days is January (6 days).
Average snowfall
Radnor, IN
The month with the highest snowfall is February (2.44").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days
Radnor, IN
- Average snowfall days in January:
11.5 days - Average snowfall days in February:
8.7 days - Average snowfall days in March:
4.8 days - Average snowfall days in April:
1.3 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:
0.2 days - Average snowfall days in November:
3.3 days - Average snowfall days in December:
7.2 days
The month with the highest number of snowfall days is January (11.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Radnor, IN
- Average daylight in January:
9h and 42min - Average daylight in February:
10h and 42min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 18min - Average daylight in May:
14h and 30min - Average daylight in June:
15h and 0min
- Average daylight in July:
14h and 42min - Average daylight in August:
13h and 42min - Average daylight in September:
12h and 24min - Average daylight in October:
11h and 6min - Average daylight in November:
9h and 54min - Average daylight in December:
9h and 18min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in January:
3h and 48min - Average sunshine in February:
5h and 0min - Average sunshine in March:
6h and 6min - Average sunshine in April:
7h and 0min - Average sunshine in May:
8h and 42min - Average sunshine in June:
10h and 0min
- Average sunshine in July:
10h and 0min - Average sunshine in August:
9h and 12min - Average sunshine in September:
8h and 12min - Average sunshine in October:
6h and 30min - Average sunshine in November:
5h and 12min - Average sunshine in December:
4h and 12min
The months with the most sunshine are June and July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days
Radnor, IN
- Average sunshine days in January:
16 days - Average sunshine days in February:
13.8 days - Average sunshine days in March:
15 days - Average sunshine days in April:
12.6 days - Average sunshine days in May:
11.2 days - Average sunshine days in June:
11.7 days
- Average sunshine days in July:
12.3 days - Average sunshine days in August:
13.1 days - Average sunshine days in September:
15.5 days - Average sunshine days in October:
16.8 days - Average sunshine days in November:
18.6 days - Average sunshine days in December:
16.8 days
The month with the most sunshine days is November (18.6 days).
The month with the least sunshine days is May (11.2 days).
Average UV index
Radnor, IN
The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover
Radnor, IN
The month with the most cloud cover is January (Cloud cover 61).
The months with the least cloud cover are June and August (Cloud cover 33).
Average visibility
Radnor, IN
The months with the highest visibility are January, February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are July and August (5mi).
