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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, is an icy winter month in Jerome, Illinois, with an average temperature fluctuating between 33.6°F (0.9°C) and 21.4°F (-5.9°C). The coldest period tends to be January, when average temperatures fluctuate between a high of 33.6°F (0.9°C) and a low of 21.4°F (-5.9°C). Weather in January »
Weather in February
The last month of the winter, February, is another cold month in Jerome, Illinois, with temperature in the range of an average low of 25.2°F (-3.8°C) and an average high of 38.3°F (3.5°C). February's commencement is accompanied by an average high-temperature of a still cold 38.3°F (3.5°C), diverging marginally from January's 33.6°F (0.9°C). Weather in February »
Weather in March
March, the first month of the spring in Jerome, is a fresh month, with temperature in the range of an average low of 36°F (2.2°C) and an average high of 51.4°F (10.8°C). A shift in the average high-temperature is noticeable in March, changing from an icy 38.3°F (3.5°C) in February to a fresh 51.4°F (10.8°C). Weather in March »
Weather in April
April is a comfortable spring month in Jerome, Illinois, with an average temperature varying between 46.2°F (7.9°C) and 63.3°F (17.4°C). The arrival of April sees a shift in the average high-temperature, moving from a cool 51.4°F (10.8°C) in March to a comfortable 63.3°F (17.4°C). Weather in April »
Weather in May
May, the last month of the spring in Jerome, is a pleasant month, with an average temperature fluctuating between 72.9°F (22.7°C) and 56.1°F (13.4°C). As Jerome transitions into May, the average high-temperature shows a change, moving from a comfortable 63.3°F (17.4°C) in April to a pleasant 72.9°F (22.7°C). Weather in May »
Weather in June
The first month of the summer, June, is a warm month in Jerome, Illinois, with temperature in the range of an average low of 64.8°F (18.2°C) and an average high of 81.1°F (27.3°C). As Jerome transitions into June, the average high-temperature is observed to slightly rise from a pleasant 72.9°F (22.7°C) in May to a moderately hot 81.1°F (27.3°C). Weather in June »
Weather in July
July, like June, in Jerome, Illinois, is another warm summer month, with an average temperature fluctuating between 82.8°F (28.2°C) and 66.6°F (19.2°C). The average temperatures reach their apex in July, averaging 82.8°F (28.2°C) at the high end and 66.6°F (19.2°C) at the low end. For July, the heat index is computed to be a hot 91.4°F (33°C). Weather in July »
Weather in August
August, the last month of the summer in Jerome, is another warm month, with an average temperature ranging between min 64.8°F (18.2°C) and max 81.9°F (27.7°C). The advent of August brings an average high-temperature of a still warm 81.9°F (27.7°C), almost identical to the preceding month. Weather in August »
Weather in September
September, the first month of the autumn in Jerome, is also a moderately hot month, with temperature in the range of an average high of 77.5°F (25.3°C) and an average low of 58.8°F (14.9°C). September records an average high-temperature of a still moderately hot 77.5°F (25.3°C), indicating a minor variation from the preceding month. Weather in September »
Weather in October
October, like September, in Jerome, Illinois, is another enjoyable autumn month, with an average temperature varying between 64.2°F (17.9°C) and 48.2°F (9°C). In the transition to October, Jerome observes a drop in the average high-temperature, moving from a warm 77.5°F (25.3°C) in September to an enjoyable 64.2°F (17.9°C). Weather in October »
Weather in November
November, the last month of the autumn in Jerome, is another cool month, with an average temperature ranging between min 36.3°F (2.4°C) and max 50.2°F (10.1°C). Onset of November witnesses a reduction in the average high-temperature, falling from a refreshing 64.2°F (17.9°C) in October to a cool 50.2°F (10.1°C). Weather in November »
Weather in December
The first month of the winter, December, is also a wintry month in Jerome, Illinois, with an average temperature fluctuating between 38.8°F (3.8°C) and 28.4°F (-2°C). December indicates a shift in the average high-temperature, from November's cool 50.2°F (10.1°C) to a wintry 38.8°F (3.8°C). Weather in December »
[Resources]Frequently asked questions
What part of the year is the coldest in Jerome?
January stands out as Jerome's coldest month, with temperatures ranging between an average high of 33.6°F (0.9°C) and a low of 21.4°F (-5.9°C).
How many days does it rain in Jerome?
Throughout the year, in Jerome, there are 104.2 rainfall days, and 9.29" (236mm) of precipitation is accumulated.
When does it snow in Jerome?
January through April, November and December are months with snowfall in Jerome.
How many days does it snow in Jerome?
In Jerome, during the entire year, snow falls for 18.6 days and aggregates up to 2.68" (68mm) of snow.
What is the month with the least sunshine in Jerome?
January has the least sunshine of the year in Jerome, with an average of 4.2h of sunshine.
What is the month with the lowest UV index in Jerome?
The months with the lowest UV index in Jerome, Illinois, are January, February, November and December, with an average maximum UV index of 2.
When does it snow the most in Jerome?
The month with the most snowfall in Jerome is February, when snow falls for 4.8 days and typically aggregates up to 0.91" (23mm) of snow.
When is Daylight Saving Time (DST) in Jerome?
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.
When it does not snow in Jerome?
May through October are months without snowfall in Jerome.
What is the rainiest month in Jerome?
June is the month with the most rainfall. Rain falls for 11.6 days and accumulates 1.22" (31mm) of precipitation.
When are the longest days in Jerome?
With an average of 14h and 54min of daylight, June has the longest days of the year in Jerome, Illinois.
What month has the most sunshine in Jerome?
June has the most sunshine of the year in Jerome, Illinois, with an average of 10.4h of sunshine.
When is the highest UV index in Jerome?
June through August, with an average maximum UV index of 6, are months with the highest UV index.
What month is the hottest in Jerome?
July, having an average high-temperature of 82.8°F (28.2°C) and an average low-temperature of 66.6°F (19.2°C), is the warmest month.
What is the most humid month in Jerome?
The most humid month in Jerome, Illinois, is July, with an average relative humidity of 83%.
What is the least humid month in Jerome?
The least humid month in Jerome, Illinois, is October, with an average relative humidity of 70%.
What is the driest month in Jerome?
The month with the least rainfall in Jerome, Illinois, is December, when the rain falls for 5.5 days and typically collects 0.43" (11mm) of precipitation.
What is the month with the shortest days in Jerome?
December has the shortest days of the year in Jerome, Illinois, with an average of 9h and 24min of daylight.
Average temperature
Jerome, IL
The warmest month (with the highest average high temperature) is July (82.8°F).
The month with the lowest average high temperature is January (33.6°F).
The month with the highest average low temperature is July (66.6°F).
The coldest month (with the lowest average low temperature) is January (21.4°F).
Average pressure
Jerome, IL
- Average pressure in January:
30.15"Hg - Average pressure in February:
30.12"Hg - Average pressure in March:
30.08"Hg - Average pressure in April:
29.94"Hg - Average pressure in May:
29.95"Hg - Average pressure in June:
29.91"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:
30.03"Hg - Average pressure in November:
30.12"Hg - Average pressure in December:
30.13"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed
Jerome, IL
- Average wind speed in January:
10.4mph - Average wind speed in February:
10.3mph - Average wind speed in March:
10mph - Average wind speed in April:
10.2mph - Average wind speed in May:
8.5mph - Average wind speed in June:
7.3mph
- Average wind speed in July:
6.1mph - 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:
9.8mph - Average wind speed in December:
9.8mph
The windiest month (with the highest average wind speed) is January (10.4mph).
The calmest month (with the lowest average wind speed) is July (6.1mph).
Average humidity
Jerome, IL
The month with the highest relative humidity is July (83%).
The month with the lowest relative humidity is October (70%).
Average rainfall
Jerome, IL
- Average rainfall in January:
0.63" - Average rainfall in February:
0.55" - Average rainfall in March:
0.71" - Average rainfall in April:
1.06" - Average rainfall in May:
1.06" - Average rainfall in June:
1.22"
- Average rainfall in July:
0.91" - Average rainfall in August:
0.83" - Average rainfall in September:
0.63" - Average rainfall in October:
0.79" - Average rainfall in November:
0.47" - Average rainfall in December:
0.43"
The wettest month (with the highest rainfall) is June (1.22").
The driest month (with the least rainfall) is December (0.43").
Average rainfall days
Jerome, IL
- Average rainfall days in January:
4.4 days - Average rainfall days in February:
5.3 days - Average rainfall days in March:
8.9 days - Average rainfall days in April:
11.3 days - Average rainfall days in May:
12.5 days - Average rainfall days in June:
11.6 days
- Average rainfall days in July:
10.8 days - Average rainfall days in August:
10.5 days - Average rainfall days in September:
9.1 days - Average rainfall days in October:
7.7 days - Average rainfall days in November:
6.6 days - Average rainfall days in December:
5.5 days
The month with the highest number of rainy days is May (12.5 days).
The month with the least rainy days is January (4.4 days).
Average snowfall
Jerome, IL
The month with the highest snowfall is February (0.91").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days
Jerome, IL
- Average snowfall days in January:
5.7 days - Average snowfall days in February:
4.8 days - Average snowfall days in March:
2.3 days - Average snowfall days in April:
0.3 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:
0.1 days - Average snowfall days in November:
1.5 days - Average snowfall days in December:
3.9 days
The month with the highest number of snowfall days is January (5.7 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight / Average sunshine
Jerome, 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:
14h and 5min
- 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: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in January:
4h and 1min - Average sunshine in February:
4h and 3min - Average sunshine in March:
6h and 4min - Average sunshine in April:
8h and 2min - Average sunshine in May:
9h and 2min - Average sunshine in June:
10h and 2min
- Average sunshine in July:
10h and 1min - Average sunshine in August:
9h and 5min - Average sunshine in September:
9h and 2min - Average sunshine in October:
6h and 1min - Average sunshine in November:
5h and 3min - Average sunshine in December:
4h and 5min
The month with the most sunshine is June (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).
Average sunshine days
Jerome, IL
- Average sunshine days in January:
22.2 days - Average sunshine days in February:
18.7 days - Average sunshine days in March:
18.6 days - Average sunshine days in April:
16.2 days - Average sunshine days in May:
14.8 days - Average sunshine days in June:
14 days
- Average sunshine days in July:
16 days - Average sunshine days in August:
16.2 days - Average sunshine days in September:
18.5 days - Average sunshine days in October:
21.8 days - Average sunshine days in November:
21.8 days - Average sunshine days in December:
22.6 days
The month with the most sunshine days is December (22.6 days).
The month with the least sunshine days is June (14 days).
Average UV index
Jerome, IL
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
Jerome, IL
The month with the most cloud cover is January (Cloud cover 54).
The months with the least cloud cover are June and September (Cloud cover 29).
Average visibility
Jerome, 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).
Jerome, Illinois, USA
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