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Contents
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average snowfall
- Average snowfall days
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
Weather in January
January, the same as December, in Frankfort, Illinois, is another subzero cold winter month, with an average temperature fluctuating between 18.7°F (-7.4°C) and 29.7°F (-1.3°C). Frankfort's January weather, marked by an average high temperature of 29.7°F (-1.3°C) and an average low temperature of 18.7°F (-7.4°C), is the coldest in the year. Weather in January »
Weather in February
The last month of the winter, February, is an icy month in Frankfort, Illinois, with an average temperature fluctuating between 21°F (-6.1°C) and 33.1°F (0.6°C). The transition into February marks the average high-temperature at an icy 33.1°F (0.6°C), differing minimally from January's 29.7°F (-1.3°C). Weather in February »
Weather in March
March, the first month of the spring in Frankfort, is a chilly month, with an average temperature fluctuating between 45.9°F (7.7°C) and 32.4°F (0.2°C). March brings a rise in the average high-temperature, transitioning from February's cold 33.1°F (0.6°C) to a frosty 45.9°F (7.7°C). Weather in March »
Weather in April
April in Frankfort, Illinois, is a mild spring month, with an average temperature fluctuating between 57°F (13.9°C) and 41.7°F (5.4°C). April's arrival signals a temperature shift, moving from a frosty 45.9°F (7.7°C) in March to a mild 57°F (13.9°C). Weather in April »
Weather in May
The last month of the spring, May, is an agreeable month in Frankfort, Illinois, with an average temperature fluctuating between 52.5°F (11.4°C) and 68.7°F (20.4°C). In May, the average high-temperature increases from a moderate 57°F (13.9°C) in April to an agreeable 68.7°F (20.4°C). Weather in May »
Weather in June
June, the first month of the summer in Frankfort, is a warm month, with an average temperature varying between 61.5°F (16.4°C) and 78.3°F (25.7°C). In Frankfort, the onset of June comes with an increased average high-temperature, moving from May's pleasant 68.7°F (20.4°C) to a warm 78.3°F (25.7°C). Weather in June »
Weather in July
July, the same as June, is a moderately hot summer month in Frankfort, Illinois, with an average temperature varying between 81.9°F (27.7°C) and 65.8°F (18.8°C). July is the month when Frankfort sees the highest average temperatures, with a high of 81.9°F (27.7°C) and a low of 65.8°F (18.8°C). During July, the heat index is estimated at 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 Frankfort, Illinois, with temperature in the range of an average low of 64.2°F (17.9°C) and an average high of 79.9°F (26.6°C). Frankfort's entry into August measures an average high-temperature of a still moderately hot 79.9°F (26.6°C), closely parallel to the preceding month. Weather in August »
Weather in September
The first month of the autumn, September, is still a warm month in Frankfort, Illinois, with an average temperature fluctuating between 57.9°F (14.4°C) and 73.9°F (23.3°C). The beginning of September brings a minor change in the average high-temperature, shifting from 79.9°F (26.6°C) in August to a still warm 73.9°F (23.3°C). Weather in September »
Weather in October
October, like September, in Frankfort, Illinois, is another refreshing autumn month, with an average temperature ranging between min 46.8°F (8.2°C) and max 61.2°F (16.2°C). October shows a mild decline in the average high-temperature, falling from September's moderately hot 73.9°F (23.3°C) to an enjoyable 61.2°F (16.2°C). Weather in October »
Weather in November
The last month of the autumn, November, is another chilly month in Frankfort, Illinois, with an average temperature ranging between min 34.5°F (1.4°C) and max 46.9°F (8.3°C). November brings a minor decrease, with the average high-temperature reducing from a comfortable 61.2°F (16.2°C) in October to a chilly 46.9°F (8.3°C). Weather in November »
Weather in December
December, the first month of the winter in Frankfort, is still a cold month, with an average temperature ranging between max 35.4°F (1.9°C) and min 25.7°F (-3.5°C). The transition into December is accompanied by a temperature decrease, with the average high-temperature shifting from a frosty 46.9°F (8.3°C) in November to a cold 35.4°F (1.9°C). Weather in December »
Updated: Aug 5, 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
What time of the year is the coldest?
January proves to be the coldest month, recording an average maximum temperature of 29.7°F (-1.3°C) and a minimum temperature of 18.7°F (-7.4°C).
What is the driest month?
January, February and December are months with the least rain when the rain falls for 4.5 days and typically aggregates up to 0.55" (14mm) of rain.
How much does it rain?
In Frankfort, during the entire year, the rain falls for 111.8 days and collects up to 11.18" (284mm) of precipitation.
When does it snow?
January through April, October through December are months with snowfall in Frankfort, Illinois.
When does it snow the most?
The month with the most snowfall is January, when snow falls for 10.3 days and typically aggregates up to 1.3" (33mm) of snow.
How much does it snow in Frankfort?
In Frankfort, during the entire year, snow falls for 34.2 days and aggregates up to 4.8" (122mm) of snow.
What is the month with the least sunshine?
The month with the least sunshine is January, with an average of 3.7h of sunshine.
What is the month with the lowest UV index?
The months with the lowest UV index are January and December, with an average maximum UV index of 1.
What is the most humid month in Frankfort?
With an average relative humidity of 83%, February is the most humid month.
When is Daylight Saving Time (DST)?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from CST to CDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from CDT to CST.
What is the wettest month?
The month with the most rainfall is May, when the rain falls for 12.4 days and typically aggregates up to 1.54" (39mm) of precipitation.
When it does not snow?
In Frankfort, snow does not fall in May through September.
When are the longest days?
With an average of 15h and 6min of daylight, June has the longest days of the year.
What is the month with the highest UV index?
The months with the highest UV index are June and July, with an average maximum UV index of 6.
What time of the year is the hottest?
Frankfort registers the average highest temperatures during July, with peaks of 81.9°F (27.7°C) and lows of 65.8°F (18.8°C).
What month has the most sunshine in Frankfort?
With an average of 10h of sunshine, August has the most sunshine of the year.
What is the least humid month?
The least humid month is October, with an average relative humidity of 73%.
What is the month with the shortest days?
With an average of 9h and 12min of daylight, December has the shortest days of the year.
Average temperature
Frankfort, IL
The warmest month (with the highest average high temperature) is July (81.9°F).
The month with the lowest average high temperature is January (29.7°F).
The month with the highest average low temperature is July (65.8°F).
The coldest month (with the lowest average low temperature) is January (18.7°F).
Average pressure
Frankfort, IL
- Average pressure in January:
30.11"Hg - Average pressure in February:
30.1"Hg - Average pressure in March:
30.09"Hg - Average pressure in April:
29.95"Hg - Average pressure in May:
29.96"Hg - Average pressure in June:
29.92"Hg
- Average pressure in July:
29.97"Hg - Average pressure in August:
29.98"Hg - Average pressure in September:
30.03"Hg - Average pressure in October:
30.01"Hg - Average pressure in November:
30.1"Hg - Average pressure in December:
30.1"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed
Frankfort, IL
- Average wind speed in January:
10.1mph - Average wind speed in February:
9.8mph - Average wind speed in March:
9.4mph - Average wind speed in April:
9.7mph - Average wind speed in May:
8.3mph - Average wind speed in June:
7.3mph
- Average wind speed in July:
6.3mph - Average wind speed in August:
6.2mph - Average wind speed in September:
7.2mph - Average wind speed in October:
8.9mph - Average wind speed in November:
9.6mph - Average wind speed in December:
9.4mph
The windiest month (with the highest average wind speed) is January (10.1mph).
The calmest month (with the lowest average wind speed) is August (6.2mph).
Average humidity
Frankfort, IL
The month with the highest relative humidity is February (83%).
The month with the lowest relative humidity is October (73%).
Average rainfall
Frankfort, IL
- Average rainfall in January:
0.55" - Average rainfall in February:
0.55" - Average rainfall in March:
0.59" - Average rainfall in April:
1.14" - Average rainfall in May:
1.54" - Average rainfall in June:
1.38"
- Average rainfall in July:
1.26" - Average rainfall in August:
1.06" - Average rainfall in September:
0.98" - Average rainfall in October:
0.98" - Average rainfall in November:
0.59" - Average rainfall in December:
0.55"
The wettest month (with the highest rainfall) is May (1.54").
The driest months (with the least rainfall) are January, February and December (0.55").
Average rainfall days
Frankfort, IL
- Average rainfall days in January:
4.5 days - Average rainfall days in February:
4.1 days - Average rainfall days in March:
8.7 days - Average rainfall days in April:
12.6 days - Average rainfall days in May:
12.4 days - Average rainfall days in June:
13 days
- Average rainfall days in July:
14.1 days - Average rainfall days in August:
10.8 days - Average rainfall days in September:
10.4 days - Average rainfall days in October:
9 days - Average rainfall days in November:
7.4 days - Average rainfall days in December:
4.8 days
The month with the highest number of rainy days is July (14.1 days).
The month with the least rainy days is February (4.1 days).
Average snowfall
Frankfort, IL
The month with the highest snowfall is January (1.3").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days
Frankfort, IL
- Average snowfall days in January:
10.3 days - Average snowfall days in February:
8.7 days - Average snowfall days in March:
4 days - Average snowfall days in April:
1.3 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:
0.4 days - Average snowfall days in November:
2.9 days - Average snowfall days in December:
6.6 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
Frankfort, IL
- Average daylight in January:
9h and 4min - Average daylight in February:
10h and 4min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 2min - Average daylight in May:
14h and 3min - Average daylight in June:
15h and 1min
- Average daylight in July:
14h and 5min - Average daylight in August:
13h and 5min - Average daylight in September:
12h and 3min - Average daylight in October:
11h and 1min - Average daylight in November:
9h and 5min - Average daylight in December:
9h and 1min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in January:
3h and 4min - Average sunshine in February:
3h and 5min - Average sunshine in March:
6h and 1min - Average sunshine in April:
7h and 3min - Average sunshine in May:
8h and 4min - Average sunshine in June:
9h and 4min
- Average sunshine in July:
9h and 5min - Average sunshine in August:
10h and 0min - Average sunshine in September:
8h and 5min - Average sunshine in October:
5h and 5min - Average sunshine in November:
5h and 1min - Average sunshine in December:
4h and 1min
The month with the most sunshine is August (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days
Frankfort, IL
- Average sunshine days in January:
19 days - Average sunshine days in February:
17.2 days - Average sunshine days in March:
18.7 days - Average sunshine days in April:
15.1 days - Average sunshine days in May:
15 days - Average sunshine days in June:
13.1 days
- Average sunshine days in July:
13.3 days - Average sunshine days in August:
15.3 days - Average sunshine days in September:
17 days - Average sunshine days in October:
18.9 days - Average sunshine days in November:
20.7 days - Average sunshine days in December:
20.6 days
The month with the most sunshine days is November (20.7 days).
The month with the least sunshine days is June (13.1 days).
Average UV index
Frankfort, IL
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover
Frankfort, IL
The month with the most cloud cover is January (Cloud cover 61).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility
Frankfort, IL
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Frankfort, Illinois, USA
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