Climate and monthly weather forecast
Grant City, IA

Share

Weather in January

January, the same as December, in Grant City, Iowa, is a freezing cold winter month, with an average temperature varying between 25.2°F (-3.8°C) and 13.1°F (-10.5°C). The coldest period is January, when temperatures fluctuate between an average high of 25.2°F (-3.8°C) and a low of 13.1°F (-10.5°C). Weather in January »

Weather in February

The last month of the winter, February, is another freezing cold month in Grant City, Iowa, with temperature in the range of an average low of 16.2°F (-8.8°C) and an average high of 29.1°F (-1.6°C). February's weather displays an average high-temperature of a still freezing cold 29.1°F (-1.6°C), slightly varied from January's 25.2°F (-3.8°C). Weather in February »

Weather in March

The first month of the spring, March, is a chilly month in Grant City, Iowa, with an average temperature varying between 30.6°F (-0.8°C) and 45°F (7.2°C). In Grant City, stepping into March signifies a significant temperature increment, moving up from February's freezing cold 29.1°F (-1.6°C) to a frosty 45°F (7.2°C). Weather in March »

Weather in April

April is a moderate spring month in Grant City, Iowa, with an average temperature varying between 57.9°F (14.4°C) and 41.5°F (5.3°C). April brings a temperature increase, with average high-temperatures moving from March's chilly 45°F (7.2°C) to a mild 57.9°F (14.4°C). Weather in April »

Weather in May

The last month of the spring, May, is a pleasant month in Grant City, Iowa, with an average temperature varying between 69.1°F (20.6°C) and 52.7°F (11.5°C). Grant City, Iowa, sees an increase in the average high-temperature with the arrival of May, moving from April's mild 57.9°F (14.4°C) to an agreeable 69.1°F (20.6°C). Weather in May »

Weather in June

The first month of the summer, June, is a warm month in Grant City, Iowa, with an average temperature ranging between min 62.6°F (17°C) and max 79°F (26.1°C). June signals a shift in the average high-temperature, moving from May's agreeable 69.1°F (20.6°C) to a moderately hot 79°F (26.1°C). Weather in June »

Weather in July

July, like June, in Grant City, Iowa, is a moderately hot summer month, with an average temperature ranging between min 64°F (17.8°C) and max 81.3°F (27.4°C). In Grant City, the highest average temperatures are observed in July, with a high of 81.3°F (27.4°C) and a low of 64°F (17.8°C). July's heat index is appraised at a tropical 87.8°F (31°C). Weather in July »

Weather in August

August, the last month of the summer in Grant City, is another warm month, with an average temperature varying between 61.3°F (16.3°C) and 79.2°F (26.2°C). August's average high-temperature is a still moderately hot 79.2°F (26.2°C), maintaining a close comparison with July's 81.3°F (27.4°C). Weather in August »

Weather in September

September, the first month of the autumn in Grant City, is also a moderately hot month, with temperature in the range of an average high of 74.1°F (23.4°C) and an average low of 55.2°F (12.9°C). The commencement of September brings an average high-temperature of a still moderately hot 74.1°F (23.4°C), marking an inconsequential divergence from August. Weather in September »

Weather in October

October, like September, is another refreshing autumn month in Grant City, Iowa, with an average temperature varying between 58.6°F (14.8°C) and 43.5°F (6.4°C). As Grant City transitions into October, a marked decrease in the average high-temperature is observed, dropping from a moderately hot 74.1°F (23.4°C) in September to a refreshing 58.6°F (14.8°C). Weather in October »

Weather in November

November, the last month of the autumn in Grant City, is another chilly month, with an average temperature varying between 44.8°F (7.1°C) and 31.6°F (-0.2°C). The arrival of November indicates a decrease in the average high-temperature, moving from a moderate 58.6°F (14.8°C) in October to a chilly 44.8°F (7.1°C). Weather in November »

Weather in December

The first month of the winter, December, is still a freezing cold month in Grant City, Iowa, with an average temperature ranging between min 20.1°F (-6.6°C) and max 30.2°F (-1°C). The arrival of December brings a significant change in Grant City's weather, with average high-temperatures dropping from November's chilly 44.8°F (7.1°C) to a subzero cold 30.2°F (-1°C). Weather in December »
Updated: Jul 24, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What time of the year is the coldest?

Grant City's coldest weather arrives in January, when temperatures average a high of 25.2°F (-3.8°C) and a low of 13.1°F (-10.5°C).

What is the most humid month?

With an average relative humidity of 85%, January is the most humid month in Grant City.

What is the driest month?

The month with the least rainfall is January, when the rain falls for 3.3 days and typically collects 0.43" (11mm) of precipitation.

How many days does it rain?

Throughout the year, in Grant City, there are 107.9 rainfall days, and 15.04" (382mm) of precipitation is accumulated.

When does it snow?

Months with snowfall are January through May, October through December.

How many days does it snow?

Throughout the year, there are 35.1 snowfall days, and 7.99" (203mm) of snow is accumulated.

What is the month with the least sunshine?

January has the least sunshine of the year, with an average of 4h of sunshine.

When does it snow the most?

February is the month with the most snowfall. Snow falls for 8.3 days and accumulates 2.68" (68mm) of snow.

When is the lowest UV index?

The month with the lowest UV index is February, with an average maximum UV index of 1.

When is Daylight Saving Time (DST) in Grant City?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Grant City, 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 least humid month?

The least humid month is April, with an average relative humidity of 67%.

What is the rainiest month in Grant City?

May is the month with the most rainfall. Rain falls for 14.2 days and accumulates 2.48" (63mm) of precipitation.

When it does not snow?

In Grant City, snow does not fall in June through September.

When are the longest days?

June has the longest days of the year, with an average of 15h and 12min of daylight.

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 part of the year is the hottest?

July stands out as Grant City's warmest month, with an average high-temperature of 81.3°F (27.4°C) and a low-temperature of 64°F (17.8°C).

What month has the most sunshine?

July has the most sunshine of the year, with an average of 10.3h of sunshine.

What is the month with the shortest days?

The month with the shortest days in Grant City is December, with an average of 9h and 12min of daylight.

Average temperature
Grant City, IA

Average temperature - Grant City, IA

The warmest month (with the highest average high temperature) is July (81.3°F).
The month with the lowest average high temperature is January (25.2°F).

The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (13.1°F).

Average pressure
Grant City, IA

Average pressure - Grant City, IA

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).

Average wind speed
Grant City, IA

Average wind speed - Grant City, IA

The windiest month (with the highest average wind speed) is January (11.2mph).
The calmest month (with the lowest average wind speed) is July (7.4mph).

Average humidity
Grant City, IA

Average humidity - Grant City, IA

The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is April (67%).

Average rainfall
Grant City, IA

Average rainfall - Grant City, IA

The wettest month (with the highest rainfall) is May (2.48").
The driest month (with the least rainfall) is January (0.43").

Average rainfall days
Grant City, IA

Average rainfall days - Grant City, IA

The month with the highest number of rainy days is June (15 days).
The month with the least rainy days is February (2.5 days).

Average snowfall
Grant City, IA

Average snowfall - Grant City, IA

The month with the highest snowfall is February (2.68").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days
Grant City, IA

Average snowfall days - Grant City, IA

The month with the highest number of snowfall days is January (9.1 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight / Average sunshine
Grant City, IA

Average daylight / Average sunshine - Grant City, IA

The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).

The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).

Average sunshine days
Grant City, IA

Average sunshine days - Grant City, IA

The month with the most sunshine days is November (20.9 days).
The month with the least sunshine days is June (12 days).

Average visibility
Grant City, IA

Average visibility - Grant City, IA

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).

Grant City, Iowa, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location