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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 Grantfork, Illinois, is a wintry winter month, with an average temperature fluctuating between 36.9°F (2.7°C) and 23.7°F (-4.6°C). The lowest temperatures are recorded in January, with averages reaching a high of 36.9°F (2.7°C) and a low of 23.7°F (-4.6°C). Weather in January »
Weather in February
The last month of the winter, February, is also a wintry month in Grantfork, Illinois, with an average temperature ranging between min 27.3°F (-2.6°C) and max 41.5°F (5.3°C). The transition from January to February brings an average high-temperature of a still wintry 41.5°F (5.3°C), barely different from January's 36.9°F (2.7°C). Weather in February »
Weather in March
March, the first month of the spring in Grantfork, is a fresh month, with an average temperature ranging between max 53.4°F (11.9°C) and min 37.2°F (2.9°C). Grantfork's transition into March sees a rise in the average high-temperature, advancing from a wintry 41.5°F (5.3°C) in February to a fresh 53.4°F (11.9°C). Weather in March »
Weather in April
April in Grantfork, Illinois, is a refreshing spring month, with an average temperature ranging between max 64.2°F (17.9°C) and min 47.3°F (8.5°C). Grantfork sees an increase in the average high-temperature with the arrival of April, moving from March's cool 53.4°F (11.9°C) to an enjoyable 64.2°F (17.9°C). Weather in April »
Weather in May
May, the last month of the spring in Grantfork, is a moderately hot month, with an average temperature varying between 57.4°F (14.1°C) and 74.3°F (23.5°C). Grantfork, Illinois, experiences a temperature shift with the start of May, with average high-temperatures moving from a comfortable 64.2°F (17.9°C) in April to a moderately hot 74.3°F (23.5°C). Weather in May »
Weather in June
The first month of the summer, June, is still a warm month in Grantfork, Illinois, with an average temperature varying between 66.2°F (19°C) and 83.1°F (28.4°C). The start of June brings a subtle shift in the average high-temperature, edging up from May's 74.3°F (23.5°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 Grantfork, Illinois, with temperature in the range of an average low of 67.6°F (19.8°C) and an average high of 84.9°F (29.4°C). The warmest month is July, with an average high-temperature of 84.9°F (29.4°C) and an average low-temperature of 67.6°F (19.8°C). The heat index value during July is estimated at a torrid 96.8°F (36°C). Weather in July »
Weather in August
August, the last month of the summer in Grantfork, is also a moderately hot month, with an average temperature varying between 83.7°F (28.7°C) and 65.8°F (18.8°C). Grantfork's weather in August displays an average high-temperature of a still warm 83.7°F (28.7°C), showing minor disparity from July's 84.9°F (29.4°C). Weather in August »
Weather in September
The first month of the autumn, September, is also a moderately hot month in Grantfork, Illinois, with an average temperature ranging between min 59.7°F (15.4°C) and max 78.1°F (25.6°C). As September begins, there is a minor decrease in the average high-temperature, softly falling from a moderately hot 83.7°F (28.7°C) in August to a still warm 78.1°F (25.6°C). Weather in September »
Weather in October
October, like September, in Grantfork, Illinois, is another enjoyable autumn month, with an average temperature fluctuating between 48.9°F (9.4°C) and 65.7°F (18.7°C). With October's arrival, Grantfork sees a decrease in average high-temperatures, moving from a warm 78.1°F (25.6°C) in September to a comfortable 65.7°F (18.7°C). Weather in October »
Weather in November
The last month of the autumn, November, is also a fresh month in Grantfork, Illinois, with an average temperature ranging between max 52.3°F (11.3°C) and min 37.4°F (3°C). The commencement of November involves a temperature shift, with the average high-temperature dropping from a refreshing 65.7°F (18.7°C) in October to a fresh 52.3°F (11.3°C). Weather in November »
Weather in December
December, the first month of the winter in Grantfork, is also an icy month, with an average temperature ranging between min 30°F (-1.1°C) and max 41.5°F (5.3°C). The onset of December introduces a moderate change in Grantfork's weather, with average high-temperatures falling from November's cool 52.3°F (11.3°C) to an icy 41.5°F (5.3°C). Weather in December »
[Resources]Frequently asked questions
What part of the year is the coldest in Grantfork?
January, with its high-temperature average of 36.9°F (2.7°C) and a low-temperature average of 23.7°F (-4.6°C), is the coldest month.
How many days does it rain in Grantfork?
In Grantfork, during the entire year, the rain falls for 110.6 days and collects up to 12.01" (305mm) of precipitation.
When does it snow in Grantfork?
Months with snowfall are January through March, October through December.
How many days does it snow in Grantfork?
In Grantfork, during the entire year, snow falls for 15.9 days and aggregates up to 2.32" (59mm) of snow.
What is the month with the least sunshine in Grantfork?
The months with the least sunshine are January and February, with an average of 4.6h of sunshine.
When is the lowest UV index in Grantfork?
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2.
What is the driest month in Grantfork?
February is the month with the least rainfall in Grantfork. Rain falls for 6.1 days and accumulates 0.55" (14mm) of precipitation.
When is Daylight Saving Time (DST) in Grantfork?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Grantfork, Illinois, 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 Grantfork?
April through September are months without snowfall.
What is the wettest month in Grantfork?
The month with the most rainfall is May, when the rain falls for 13.1 days and typically aggregates up to 1.46" (37mm) of precipitation.
What are the months with the highest UV index in Grantfork?
The months with the highest UV index are May through August, with an average maximum UV index of 6.
When are the longest days in Grantfork?
June has the longest days of the year, with an average of 14h and 48min of daylight.
What month has the most sunshine in Grantfork?
June has the most sunshine of the year, with an average of 10.6h of sunshine.
What part of the year is the hottest in Grantfork?
The temperatures reach their highest averages in July, with highs of 84.9°F (29.4°C) and lows of 67.6°F (19.8°C).
What is the most humid month in Grantfork?
July and August, with an average relative humidity of 80%, are most humid months.
What is the least humid month in Grantfork?
The least humid month is October, with an average relative humidity of 71%.
When does it snow the most in Grantfork?
December is the month with the most snowfall in Grantfork. Snow falls for 3.1 days and accumulates 0.94" (24mm) of snow.
What is the month with the shortest days in Grantfork?
With an average of 9h and 30min of daylight, December has the shortest days of the year in Grantfork.
Average temperature
Grantfork, IL
The warmest month (with the highest average high temperature) is July (84.9°F).
The month with the lowest average high temperature is January (36.9°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 (23.7°F).
Average pressure
Grantfork, IL
- Average pressure in January:
30.16"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:
29.96"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:
30.02"Hg - Average pressure in October:
30.03"Hg - Average pressure in November:
30.13"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
Grantfork, IL
- Average wind speed in January:
9.8mph - 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:
7.7mph - Average wind speed in June:
6.7mph
- Average wind speed in July:
5.7mph - Average wind speed in August:
5.7mph - Average wind speed in September:
6.2mph - Average wind speed in October:
8.2mph - Average wind speed in November:
8.9mph - Average wind speed in December:
8.9mph
The windiest month (with the highest average wind speed) is January (9.8mph).
The calmest months (with the lowest average wind speed) are July and August (5.7mph).
Average humidity
Grantfork, IL
The months with the highest relative humidity are July and August (80%).
The month with the lowest relative humidity is October (71%).
Average rainfall
Grantfork, IL
- Average rainfall in January:
0.91" - Average rainfall in February:
0.55" - Average rainfall in March:
0.91" - Average rainfall in April:
1.3" - Average rainfall in May:
1.46" - Average rainfall in June:
1.3"
- Average rainfall in July:
1.34" - Average rainfall in August:
1.14" - Average rainfall in September:
0.59" - Average rainfall in October:
1.02" - Average rainfall in November:
0.71" - Average rainfall in December:
0.79"
The wettest month (with the highest rainfall) is May (1.46").
The driest month (with the least rainfall) is February (0.55").
Average rainfall days
Grantfork, IL
- Average rainfall days in January:
5.9 days - Average rainfall days in February:
6.1 days - Average rainfall days in March:
10.2 days - Average rainfall days in April:
12 days - Average rainfall days in May:
13.1 days - Average rainfall days in June:
11.1 days
- Average rainfall days in July:
12.9 days - Average rainfall days in August:
9.7 days - Average rainfall days in September:
9.5 days - Average rainfall days in October:
7.3 days - Average rainfall days in November:
6.9 days - Average rainfall days in December:
5.9 days
The month with the highest number of rainy days is May (13.1 days).
The months with the least rainy days are January and December (5.9 days).
Average snowfall
Grantfork, IL
The month with the highest snowfall is December (0.94").
The months with the least snowfall are April, May, June, July, August and September (0").
Average snowfall days
Grantfork, IL
- Average snowfall days in January:
4.8 days - Average snowfall days in February:
4.8 days - Average snowfall days in March:
1.7 days - Average snowfall days in April:
0.2 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:
1.2 days - Average snowfall days in December:
3.1 days
The months with the highest number of snowfall days are January and February (4.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight / Average sunshine
Grantfork, 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 4min - Average sunshine in February:
4h and 4min - Average sunshine in March:
6h and 3min - Average sunshine in April:
8h and 3min - Average sunshine in May:
9h and 2min - Average sunshine in June:
10h and 4min
- Average sunshine in July:
10h and 2min - Average sunshine in August:
10h and 1min - Average sunshine in September:
9h and 3min - Average sunshine in October:
6h and 2min - Average sunshine in November:
5h and 4min - Average sunshine in December:
4h and 5min
The month with the most sunshine is June (Average sunshine: 10h and 36min).
The months with the least sunshine are January and February (Average sunshine: 4h and 36min).
Average sunshine days
Grantfork, IL
- Average sunshine days in January:
21.3 days - Average sunshine days in February:
18.3 days - Average sunshine days in March:
17.4 days - Average sunshine days in April:
16.2 days - Average sunshine days in May:
14.8 days - Average sunshine days in June:
15.6 days
- Average sunshine days in July:
14.5 days - Average sunshine days in August:
17.3 days - Average sunshine days in September:
18.3 days - Average sunshine days in October:
21.5 days - Average sunshine days in November:
20.9 days - Average sunshine days in December:
21.8 days
The month with the most sunshine days is December (21.8 days).
The month with the least sunshine days is July (14.5 days).
Average UV index
Grantfork, 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
Grantfork, IL
The months with the most cloud cover are January and February (Cloud cover 50).
The months with the least cloud cover are June, July, August and September (Cloud cover 28).
Average visibility
Grantfork, 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).
Grantfork, Illinois, USA
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