Expand
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 another cold winter month in Grandview, Illinois, with an average temperature varying between 20.8°F (-6.2°C) and 33.4°F (0.8°C). Temperature readings reach their annual highs in January, averaging 33.4°F (0.8°C) and a minimum average of 20.8°F (-6.2°C). Weather in January »
Weather in February
The last month of the winter, February, is also a wintry month in Grandview, Illinois, with an average temperature ranging between min 24.8°F (-4°C) and max 38.3°F (3.5°C). The shift into February finds Grandview at an average high-temperature of a still wintry 38.3°F (3.5°C), closely comparable to January's conditions. Weather in February »
Weather in March
The first month of the spring, March, is a cool month in Grandview, Illinois, with temperature in the range of an average high of 50.9°F (10.5°C) and an average low of 35.4°F (1.9°C). Grandview in March experiences an increase in the average high-temperature, moving from February's cold 38.3°F (3.5°C) to a cool 50.9°F (10.5°C). Weather in March »
Weather in April
April is an enjoyable spring month in Grandview, Illinois, with an average temperature varying between 46.2°F (7.9°C) and 63.1°F (17.3°C). April shows a rise in the average high-temperature, moving from March's cool 50.9°F (10.5°C) to a comfortable 63.1°F (17.3°C). Weather in April »
Weather in May
May, the last month of the spring in Grandview, is an agreeable month, with an average temperature ranging between min 56.3°F (13.5°C) and max 72.9°F (22.7°C). The shift into May is accompanied by a temperature increase, with the average high-temperature rising from a comfortable 63.1°F (17.3°C) in April to an agreeable 72.9°F (22.7°C). Weather in May »
Weather in June
June, the first month of the summer in Grandview, is a moderately hot month, with an average temperature fluctuating between 81.1°F (27.3°C) and 64.6°F (18.1°C). A subtle rise in the average high-temperature is observed during June, adjusting 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 Grandview, Illinois, is a moderately hot summer month, with temperature in the range of an average low of 66°F (18.9°C) and an average high of 82.8°F (28.2°C). Grandview's July weather, marked by an average high temperature of 82.8°F (28.2°C) and an average low temperature of 66°F (18.9°C), is the warmest in the year. The heat index for July is calculated to be a hot 91.4°F (33°C). Weather in July »
Weather in August
The last month of the summer, August, is also a moderately hot month in Grandview, Illinois, with temperature in the range of an average high of 81.9°F (27.7°C) and an average low of 64°F (17.8°C). Grandview's average high-temperature in August is a still moderately hot 81.9°F (27.7°C), indicating a subtle variation from July. Weather in August »
Weather in September
The first month of the autumn, September, is also a moderately hot month in Grandview, Illinois, with an average temperature fluctuating between 58.5°F (14.7°C) and 77.4°F (25.2°C). In September, Grandview notes an average high-temperature of a still moderately hot 77.4°F (25.2°C), hardly different from the preceding month. Weather in September »
Weather in October
October, like September, in Grandview, Illinois, is another comfortable autumn month, with an average temperature varying between 48.2°F (9°C) and 64°F (17.8°C). Grandview's October weather shows a moderate shift in high-temperatures, falling from September's moderately hot 77.4°F (25.2°C) to an enjoyable 64°F (17.8°C). Weather in October »
Weather in November
November, the last month of the autumn in Grandview, is another cool month, with temperature in the range of an average high of 50°F (10°C) and an average low of 36.3°F (2.4°C). Transition into November marks a drop in the average high-temperature, moving from an enjoyable 64°F (17.8°C) in October to a cool 50°F (10°C). Weather in November »
Weather in December
The first month of the winter, December, is also a wintry month in Grandview, Illinois, with temperature in the range of an average low of 28°F (-2.2°C) and an average high of 38.7°F (3.7°C). The arrival of December signals a shift in temperature, down from a fresh 50°F (10°C) in November to a cold 38.7°F (3.7°C). Weather in December »
Updated: Jun 12, 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 is the coldest time of year in Grandview?
January, characterized by an average high temperature of 33.4°F (0.8°C) and a low temperature of 20.8°F (-6.2°C), is generally the coldest month.
How many days does it rain?
Throughout the year, there are 140.2 rainfall days, and 23.27" (591mm) of precipitation is accumulated.
When does it snow?
Months with snowfall are January through April, November and December.
When does it snow the most?
The month with the most snowfall is January, when snow falls for 9.5 days and typically aggregates up to 2.24" (57mm) of snow.
How much does it snow?
In Grandview, during the entire year, snow falls for 28.1 days and aggregates up to 7.48" (190mm) of snow.
What is the month with the least sunshine?
With an average of 4.2h of sunshine, January has the least sunshine of the year.
What are the months with 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.
When it does not snow?
May through October are months without snowfall in Grandview.
What is the rainiest month?
The month with the most rainfall in Grandview is June, when the rain falls for 15.5 days and typically aggregates up to 2.72" (69mm) of precipitation.
When are the longest days?
The month with the longest days is June, with an average of 14h and 54min of daylight.
What month has the most sunshine?
The month with the most sunshine is June, with an average of 10.4h of sunshine.
What is the month with the highest UV index?
The months with the highest UV index are June through August, with an average maximum UV index of 6.
What is the warmest month?
July, with its average high-temperature of 82.8°F (28.2°C) and an average low-temperature of 66°F (18.9°C), holds the record as the warmest month.
What is the most humid month?
July is the most humid month, with an average relative humidity of 84%.
What is the least humid month?
With an average relative humidity of 70%, October is the least humid month.
What is the driest month?
The month with the least rainfall in Grandview is December, when the rain falls for 7.1 days and typically collects 1.18" (30mm) of precipitation.
What is the month with the shortest days?
The month with the shortest days is December, with an average of 9h and 24min of daylight.
Average temperature
Grandview, 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 (33.4°F).
The month with the highest average low temperature is July (66°F).
The coldest month (with the lowest average low temperature) is January (20.8°F).
Average pressure
Grandview, 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:
30.02"Hg - Average pressure in November:
30.12"Hg - Average pressure in December:
30.12"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
Grandview, IL
- Average wind speed in January:
10.4mph - Average wind speed in February:
10.3mph - Average wind speed in March:
10.1mph - Average wind speed in April:
10.3mph - Average wind speed in May:
8.5mph - Average wind speed in June:
7.3mph
- Average wind speed in July:
6.2mph - Average wind speed in August:
6.2mph - Average wind speed in September:
7.1mph - Average wind speed in October:
9.1mph - 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 months (with the lowest average wind speed) are July and August (6.2mph).
Average humidity
Grandview, IL
The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (70%).
Average rainfall
Grandview, IL
- Average rainfall in January:
1.26" - Average rainfall in February:
1.22" - Average rainfall in March:
1.65" - Average rainfall in April:
2.64" - Average rainfall in May:
2.68" - Average rainfall in June:
2.72"
- Average rainfall in July:
2.09" - Average rainfall in August:
2.28" - Average rainfall in September:
2.28" - Average rainfall in October:
2.01" - Average rainfall in November:
1.26" - Average rainfall in December:
1.18"
The wettest month (with the highest rainfall) is June (2.72").
The driest month (with the least rainfall) is December (1.18").
Average rainfall days
Grandview, IL
- Average rainfall days in January:
6.7 days - Average rainfall days in February:
5.8 days - Average rainfall days in March:
12.3 days - Average rainfall days in April:
13.8 days - Average rainfall days in May:
17.1 days - Average rainfall days in June:
15.5 days
- Average rainfall days in July:
15.8 days - Average rainfall days in August:
14.8 days - Average rainfall days in September:
12.3 days - Average rainfall days in October:
10.3 days - Average rainfall days in November:
8.7 days - Average rainfall days in December:
7.1 days
The month with the highest number of rainy days is May (17.1 days).
The month with the least rainy days is February (5.8 days).
Average snowfall
Grandview, IL
The month with the highest snowfall is January (2.24").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days
Grandview, IL
- Average snowfall days in January:
9.5 days - Average snowfall days in February:
7.2 days - Average snowfall days in March:
3.2 days - Average snowfall days in April:
0.6 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:
0.2 days - Average snowfall days in November:
2 days - Average snowfall days in December:
5.4 days
The month with the highest number of snowfall days is January (9.5 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight / Average sunshine
Grandview, 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 3min - 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 0min - 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
Grandview, IL
- Average sunshine days in January:
16.8 days - Average sunshine days in February:
15.5 days - Average sunshine days in March:
15.4 days - Average sunshine days in April:
13.3 days - Average sunshine days in May:
11.6 days - Average sunshine days in June:
11.8 days
- Average sunshine days in July:
11.4 days - Average sunshine days in August:
13.3 days - Average sunshine days in September:
15.4 days - Average sunshine days in October:
18.9 days - Average sunshine days in November:
19.7 days - Average sunshine days in December:
19.5 days
The month with the most sunshine days is November (19.7 days).
The month with the least sunshine days is July (11.4 days).
Average UV index
Grandview, 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
Grandview, IL
The month with the most cloud cover is January (Cloud cover 55).
The months with the least cloud cover are June and September (Cloud cover 29).
Average visibility
Grandview, 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).
Grandview, Illinois, USA
Weather forecast for your location
1. Click Locate me button
2. Allow the app to use your location
2. Allow the app to use your location