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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, like December, in Hartford, Illinois, is an icy winter month, with an average temperature fluctuating between 23.4°F (-4.8°C) and 36.1°F (2.3°C). January, with average temperatures reaching a high of 36.1°F (2.3°C) and a low of 23.4°F (-4.8°C), is the coldest month. Weather in January »
Weather in February
February, the last month of the winter in Hartford, is also a wintry month, with temperature in the range of an average high of 41°F (5°C) and an average low of 27.1°F (-2.7°C). With the advent of February, Hartford experiences an average high-temperature of a still wintry 41°F (5°C), mirroring a close resemblance to the previous month. Weather in February »
Weather in March
The first month of the spring, March, is a fresh month in Hartford, Illinois, with an average temperature ranging between max 53.4°F (11.9°C) and min 37.2°F (2.9°C). The rise of average high-temperatures is seen in March, with an increase from a cold 41°F (5°C) in February to a cool 53.4°F (11.9°C). Weather in March »
Weather in April
April is an enjoyable spring month in Hartford, Illinois, with an average temperature fluctuating between 46.9°F (8.3°C) and 64.4°F (18°C). Hartford's transition into April sees a rise in the average high-temperature, advancing from a fresh 53.4°F (11.9°C) in March to an enjoyable 64.4°F (18°C). Weather in April »
Weather in May
May, the last month of the spring in Hartford, is a warm month, with an average temperature varying between 74.1°F (23.4°C) and 57°F (13.9°C). In Hartford, stepping into May brings a temperature increase, moving up from April's comfortable 64.4°F (18°C) to a warm 74.1°F (23.4°C). Weather in May »
Weather in June
June, the first month of the summer in Hartford, is also a moderately hot month, with an average temperature ranging between max 83.1°F (28.4°C) and min 66.2°F (19°C). The shift from May to June brings an increase in the average high-temperature, moving from 74.1°F (23.4°C) to a still moderately hot 83.1°F (28.4°C). Weather in June »
Weather in July
July, the same as June, is a moderately hot summer month in Hartford, Illinois, with an average temperature fluctuating between 67.6°F (19.8°C) and 85.3°F (29.6°C). July proves to be the warmest month, recording an average peak temperature of 85.3°F (29.6°C) and a minimum temperature of 67.6°F (19.8°C). For most parts of July, the heat index is estimated at a fiery hot 96.8°F (36°C). Weather in July »
Weather in August
August, the last month of the summer in Hartford, is another warm month, with temperature in the range of an average high of 84°F (28.9°C) and an average low of 65.7°F (18.7°C). Hartford's entry into August measures an average high-temperature of a still warm 84°F (28.9°C), closely parallel to the preceding month. Weather in August »
Weather in September
The first month of the autumn, September, is also a moderately hot month in Hartford, Illinois, with an average temperature varying between 78.6°F (25.9°C) and 59.4°F (15.2°C). A modest decline in the average high-temperature is seen during September, decreasing from 84°F (28.9°C) in August to a still warm 78.6°F (25.9°C). Weather in September »
Weather in October
October, like September, in Hartford, Illinois, is another refreshing autumn month, with an average temperature fluctuating between 65.3°F (18.5°C) and 48.7°F (9.3°C). The decrease of average high-temperatures is mild in October, with a decline from a warm 78.6°F (25.9°C) in September to an enjoyable 65.3°F (18.5°C). Weather in October »
Weather in November
November, the last month of the autumn in Hartford, is another cool month, with an average temperature fluctuating between 37°F (2.8°C) and 52.2°F (11.2°C). Welcoming November, Hartford observes a shift in the average high-temperature, falling from October's comfortable 65.3°F (18.5°C) to a cool 52.2°F (11.2°C). Weather in November »
Weather in December
The first month of the winter, December, is also an icy month in Hartford, Illinois, with an average temperature fluctuating between 41.4°F (5.2°C) and 29.8°F (-1.2°C). A change in temperatures is noted as November gives way to December, with average highs reducing from a cool 52.2°F (11.2°C) to a wintry 41.4°F (5.2°C). Weather in December »
[Resources]Frequently asked questions
What are the coldest months in Hartford?
January is the month that records the lowest temperatures in Hartford, with averages ranging from a high of 36.1°F (2.3°C) to a low of 23.4°F (-4.8°C).
How much does it rain in Hartford?
Throughout the year, in Hartford, Illinois, there are 138 rainfall days, and 23.9" (607mm) of precipitation is accumulated.
When does it snow in Hartford?
January through April, November and December are months with snowfall.
How much does it snow in Hartford?
Throughout the year, in Hartford, Illinois, there are 18.6 snowfall days, and 4.53" (115mm) of snow is accumulated.
What are the months with the least sunshine in Hartford?
January and February, with an average of 4.5h of sunshine, are months with the least sunshine in Hartford.
What is the month with the lowest UV index in Hartford?
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Hartford.
What is the driest month in Hartford?
February is the month with the least rainfall in Hartford, Illinois. Rain falls for 6.9 days and accumulates 1.14" (29mm) of precipitation.
When does it snow the most in Hartford?
The month with the most snowfall is February, when snow falls for 5.4 days and typically aggregates up to 1.61" (41mm) of snow.
When is Daylight Saving Time (DST) in Hartford?
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 rainiest month in Hartford?
May is the month with the most rainfall in Hartford, Illinois. Rain falls for 16.6 days and accumulates 3.07" (78mm) of precipitation.
When it does not snow in Hartford?
May through October are months without snowfall.
What is the month with the highest UV index in Hartford?
May through August, with an average maximum UV index of 6, are months with the highest UV index in Hartford.
When are the longest days in Hartford?
The month with the longest days in Hartford is June, with an average of 14h and 48min of daylight.
What month has the most sunshine in Hartford?
With an average of 10.4h of sunshine, June has the most sunshine of the year in Hartford.
What part of the year is the hottest in Hartford?
In Hartford, Illinois, the peak average temperatures are observed in July, with a high of 85.3°F (29.6°C) and a low of 67.6°F (19.8°C).
What is the most humid month in Hartford?
The most humid month in Hartford, Illinois, is July, with an average relative humidity of 80%.
What is the least humid month in Hartford?
The least humid month is October, with an average relative humidity of 71%.
What is the month with the shortest days in Hartford?
The month with the shortest days in Hartford is December, with an average of 9h and 30min of daylight.
Average temperature
Hartford, IL
The warmest month (with the highest average high temperature) is July (85.3°F).
The month with the lowest average high temperature is January (36.1°F).
The month with the highest average low temperature is July (67.6°F).
The coldest month (with the lowest average low temperature) is January (23.4°F).
Average pressure
Hartford, IL
- Average pressure in January:
30.16"Hg - Average pressure in February:
30.12"Hg - Average pressure in March:
30.07"Hg - Average pressure in April:
29.94"Hg - Average pressure in May:
29.95"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:
30.02"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 (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed
Hartford, IL
- Average wind speed in January:
9.6mph - Average wind speed in February:
9.6mph - Average wind speed in March:
9.4mph - Average wind speed in April:
9.3mph - Average wind speed in May:
7.6mph - Average wind speed in June:
6.6mph
- Average wind speed in July:
5.7mph - Average wind speed in August:
5.8mph - Average wind speed in September:
6.3mph - Average wind speed in October:
8.1mph - Average wind speed in November:
8.9mph - Average wind speed in December:
9mph
The windiest months (with the highest average wind speed) are January and February (9.6mph).
The calmest month (with the lowest average wind speed) is July (5.7mph).
Average humidity
Hartford, IL
The month with the highest relative humidity is July (80%).
The month with the lowest relative humidity is October (71%).
Average rainfall
Hartford, IL
- Average rainfall in January:
1.26" - Average rainfall in February:
1.14" - Average rainfall in March:
1.57" - Average rainfall in April:
2.4" - Average rainfall in May:
3.07" - Average rainfall in June:
2.76"
- Average rainfall in July:
2.48" - Average rainfall in August:
2.91" - Average rainfall in September:
1.69" - Average rainfall in October:
1.93" - Average rainfall in November:
1.3" - Average rainfall in December:
1.38"
The wettest month (with the highest rainfall) is May (3.07").
The driest month (with the least rainfall) is February (1.14").
Average rainfall days
Hartford, IL
- Average rainfall days in January:
5.6 days - Average rainfall days in February:
6.9 days - Average rainfall days in March:
12.3 days - Average rainfall days in April:
13.4 days - Average rainfall days in May:
16.6 days - Average rainfall days in June:
15.1 days
- Average rainfall days in July:
16.3 days - Average rainfall days in August:
14.3 days - Average rainfall days in September:
11.8 days - Average rainfall days in October:
10.5 days - Average rainfall days in November:
8.5 days - Average rainfall days in December:
6.7 days
The month with the highest number of rainy days is May (16.6 days).
The month with the least rainy days is January (5.6 days).
Average snowfall
Hartford, IL
The month with the highest snowfall is February (1.61").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days
Hartford, IL
- Average snowfall days in January:
6 days - Average snowfall days in February:
5.4 days - Average snowfall days in March:
2 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 days - Average snowfall days in December:
3.8 days
The month with the highest number of snowfall days is January (6 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight / Average sunshine
Hartford, IL
- Average daylight in January:
9h and 5min - Average daylight in February:
10h and 5min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 1min - 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 1min - Average daylight in December:
9h and 3min
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 3min - Average sunshine in February:
4h and 3min - Average sunshine in March:
6h and 2min - Average sunshine in April:
8h and 3min - Average sunshine in May:
9h and 2min - Average sunshine in June:
10h and 2min
- Average sunshine in July:
10h and 2min - Average sunshine in August:
10h and 0min - 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 months with the least sunshine are January and February (Average sunshine: 4h and 30min).
Average sunshine days
Hartford, IL
- Average sunshine days in January:
20.3 days - Average sunshine days in February:
16.1 days - Average sunshine days in March:
15.3 days - Average sunshine days in April:
15.3 days - Average sunshine days in May:
12.5 days - Average sunshine days in June:
12.5 days
- Average sunshine days in July:
12.3 days - Average sunshine days in August:
14 days - Average sunshine days in September:
15.7 days - Average sunshine days in October:
19.7 days - Average sunshine days in November:
20.1 days - Average sunshine days in December:
20.4 days
The month with the most sunshine days is December (20.4 days).
The month with the least sunshine days is July (12.3 days).
Average UV index
Hartford, IL
The months with the highest UV index are May, 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
Hartford, IL
The month with the most cloud cover is January (Cloud cover 51).
The months with the least cloud cover are June, July and August (Cloud cover 29).
Average visibility
Hartford, 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).
Hartford, Illinois, USA
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