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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 Randolph, Illinois, is a freezing cold winter month, with an average temperature ranging between min 19.8°F (-6.8°C) and max 31.3°F (-0.4°C). January brings the lowest temperatures, with an average high of 31.3°F (-0.4°C) and an average low of 19.8°F (-6.8°C). Weather in January »
Weather in February
February, the last month of the winter in Randolph, is a cold month, with temperature in the range of an average low of 23.4°F (-4.8°C) and an average high of 36.1°F (2.3°C). Randolph signifies an average high-temperature of a cold 36.1°F (2.3°C) in February, closely mirroring the 31.3°F (-0.4°C) of January. Weather in February »
Weather in March
The first month of the spring, March, is a frosty month in Randolph, Illinois, with an average temperature varying between 49.3°F (9.6°C) and 34.3°F (1.3°C). Randolph in March experiences an increase in the average high-temperature, moving from February's icy 36.1°F (2.3°C) to a frosty 49.3°F (9.6°C). Weather in March »
Weather in April
April in Randolph, Illinois, is a refreshing spring month, with an average temperature ranging between max 61.3°F (16.3°C) and min 44.8°F (7.1°C). An upsurge in temperatures occurs as March gives way to April, with average highs shifting from a chilly 49.3°F (9.6°C) to an enjoyable 61.3°F (16.3°C). Weather in April »
Weather in May
The last month of the spring, May, is an agreeable month in Randolph, Illinois, with an average temperature fluctuating between 55.6°F (13.1°C) and 72°F (22.2°C). The start of May brings a rise in the average high-temperature, moving from a refreshing 61.3°F (16.3°C) in April to an agreeable 72°F (22.2°C). Weather in May »
Weather in June
June, the first month of the summer in Randolph, is a moderately hot month, with an average temperature varying between 63.7°F (17.6°C) and 79.7°F (26.5°C). June comes with a subtle rise, with the average high-temperature adjusting from a pleasant 72°F (22.2°C) in May to a warm 79.7°F (26.5°C). Weather in June »
Weather in July
July, the same as June, is a moderately hot summer month in Randolph, Illinois, with an average temperature ranging between max 81.1°F (27.3°C) and min 64.9°F (18.3°C). July is the month when Randolph's temperatures reach their peak, with averages of 81.1°F (27.3°C) and lows of 64.9°F (18.3°C). July's mean heat index is computed to be a tropical 87.8°F (31°C). Weather in July »
Weather in August
August, the last month of the summer in Randolph, is another warm month, with an average temperature ranging between max 80.2°F (26.8°C) and min 63.3°F (17.4°C). The transition into August reveals an average high-temperature of a still warm 80.2°F (26.8°C), mirroring a close resemblance to July. Weather in August »
Weather in September
September, the first month of the autumn in Randolph, is also a moderately hot month, with an average temperature varying between 57.7°F (14.3°C) and 75.9°F (24.4°C). The transition from August to September brings an average high-temperature of a still moderately hot 75.9°F (24.4°C), barely different from August's 80.2°F (26.8°C). Weather in September »
Weather in October
October, the same as September, is another enjoyable autumn month in Randolph, Illinois, with an average temperature varying between 63°F (17.2°C) and 46.9°F (8.3°C). Randolph's October weather shows a moderate shift in high-temperatures, falling from September's warm 75.9°F (24.4°C) to an enjoyable 63°F (17.2°C). Weather in October »
Weather in November
November, the last month of the autumn in Randolph, is also a frosty month, with an average temperature fluctuating between 35.1°F (1.7°C) and 48.4°F (9.1°C). With the onset of November, Randolph experiences a distinct temperature drop, with the average high-temperature reducing from October's enjoyable 63°F (17.2°C) to a frosty 48.4°F (9.1°C). Weather in November »
Weather in December
December, the first month of the winter in Randolph, is still a cold month, with an average temperature ranging between max 37°F (2.8°C) and min 27°F (-2.8°C). As Randolph, Illinois, enters December, the average high-temperature decreases from the a frosty 48.4°F (9.1°C) of November to a cold 37°F (2.8°C). Weather in December »
Updated: Jul 22, 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, with an average high of 31.3°F (-0.4°C) and a low of 19.8°F (-6.8°C), signifies the coldest month of the year.
How much does it rain?
Throughout the year, there are 124.4 rainfall days, and 13.23" (336mm) of precipitation is accumulated.
When does it snow?
January through April, November and December are months with snowfall.
What is the snowiest month?
January is the month with the most snowfall in Randolph. Snow falls for 8.5 days and accumulates 1.61" (41mm) of snow.
How many days does it snow?
In Randolph, during the entire year, snow falls for 25.3 days and aggregates up to 5.28" (134mm) of snow.
What is the month with the least sunshine?
With an average of 3.9h of sunshine, January has the least sunshine of the year.
When is the lowest UV index?
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2.
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?
May is the month with the most rainfall. Rain falls for 15.8 days and accumulates 1.69" (43mm) of precipitation.
When it does not snow?
In Randolph, snow does not fall in May through October.
When are the longest days?
The month with the longest days is June, with an average of 15h and 0min of daylight.
What month has the most sunshine in Randolph?
June has the most sunshine of the year in Randolph, with an average of 10.1h of sunshine.
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 is the warmest month?
In Randolph, the average highest temperatures are observed in July, with a high of 81.1°F (27.3°C) and a low of 64.9°F (18.3°C).
What is the most humid month?
The most humid month is July, with an average relative humidity of 85%.
What is the least humid month?
The least humid month is October, with an average relative humidity of 71%.
What is the driest month?
December is the month with the least rainfall. Rain falls for 7.4 days and accumulates 0.67" (17mm) of precipitation.
What is the month with the shortest days?
The month with the shortest days is December, with an average of 9h and 18min of daylight.
Average temperature
Randolph, IL
The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (31.3°F).
The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (19.8°F).
Average pressure
Randolph, IL
- Average pressure in January:
30.14"Hg - Average pressure in February:
30.11"Hg - Average pressure in March:
30.08"Hg - Average pressure in April:
29.94"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:
30.02"Hg - Average pressure in November:
30.11"Hg - Average pressure in December:
30.12"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed
Randolph, IL
- Average wind speed in January:
10.9mph - Average wind speed in February:
10.8mph - Average wind speed in March:
10.5mph - Average wind speed in April:
10.8mph - Average wind speed in May:
9.1mph - Average wind speed in June:
7.8mph
- Average wind speed in July:
6.6mph - Average wind speed in August:
6.5mph - Average wind speed in September:
7.6mph - Average wind speed in October:
9.6mph - Average wind speed in November:
10.4mph - Average wind speed in December:
10.3mph
The windiest month (with the highest average wind speed) is January (10.9mph).
The calmest month (with the lowest average wind speed) is August (6.5mph).
Average humidity
Randolph, IL
The month with the highest relative humidity is July (85%).
The month with the lowest relative humidity is October (71%).
Average rainfall
Randolph, IL
- Average rainfall in January:
0.83" - Average rainfall in February:
0.75" - Average rainfall in March:
1.02" - Average rainfall in April:
1.38" - Average rainfall in May:
1.69" - Average rainfall in June:
1.54"
- Average rainfall in July:
1.26" - Average rainfall in August:
1.26" - Average rainfall in September:
0.98" - Average rainfall in October:
1.02" - Average rainfall in November:
0.83" - Average rainfall in December:
0.67"
The wettest month (with the highest rainfall) is May (1.69").
The driest month (with the least rainfall) is December (0.67").
Average rainfall days
Randolph, IL
- Average rainfall days in January:
5.3 days - Average rainfall days in February:
5.8 days - Average rainfall days in March:
10.4 days - Average rainfall days in April:
13 days - Average rainfall days in May:
15.8 days - Average rainfall days in June:
13.8 days
- Average rainfall days in July:
14.2 days - Average rainfall days in August:
11.8 days - Average rainfall days in September:
10.3 days - Average rainfall days in October:
9.2 days - Average rainfall days in November:
7.4 days - Average rainfall days in December:
7.4 days
The month with the highest number of rainy days is May (15.8 days).
The month with the least rainy days is January (5.3 days).
Average snowfall
Randolph, IL
The month with the highest snowfall is January (1.61").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days
Randolph, IL
- Average snowfall days in January:
8.5 days - Average snowfall days in February:
5.8 days - Average snowfall days in March:
3.2 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 days - Average snowfall days in November:
1.9 days - Average snowfall days in December:
5.2 days
The month with the highest number of snowfall days is January (8.5 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight / Average sunshine
Randolph, 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 2min - Average daylight in June:
15h and 0min
- Average daylight in July:
14h and 4min - Average daylight in August:
13h and 4min - Average daylight in September:
12h and 2min - Average daylight in October:
11h and 1min - Average daylight in November:
10h and 0min - Average daylight in December:
9h and 2min
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 5min - Average sunshine in February:
4h and 1min - Average sunshine in March:
6h and 2min - Average sunshine in April:
7h and 5min - Average sunshine in May:
9h and 1min - Average sunshine in June:
10h and 1min
- Average sunshine in July:
9h and 5min - Average sunshine in August:
9h and 5min - Average sunshine in September:
9h and 0min - Average sunshine in October:
6h and 0min - Average sunshine in November:
5h and 2min - Average sunshine in December:
4h and 2min
The month with the most sunshine is June (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days
Randolph, IL
- Average sunshine days in January:
19.6 days - Average sunshine days in February:
18.2 days - Average sunshine days in March:
18.1 days - Average sunshine days in April:
13.8 days - Average sunshine days in May:
11.7 days - Average sunshine days in June:
13.3 days
- Average sunshine days in July:
13 days - Average sunshine days in August:
15.5 days - Average sunshine days in September:
17.3 days - Average sunshine days in October:
19.9 days - Average sunshine days in November:
20.5 days - Average sunshine days in December:
19.8 days
The month with the most sunshine days is November (20.5 days).
The month with the least sunshine days is May (11.7 days).
Average UV index
Randolph, IL
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover
Randolph, IL
The month with the most cloud cover is January (Cloud cover 59).
The months with the least cloud cover are August and September (Cloud cover 31).
Average visibility
Randolph, IL
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).
Randolph, Illinois, USA
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