Climate and monthly weather forecast
Harrisburg, MO

Share

Weather in January

January, the same as December, is an icy winter month in Harrisburg, Missouri, with temperature in the range of an average high of 36.9°F (2.7°C) and an average low of 23°F (-5°C). January is the coldest month, with the temperature often reaching an average high of 36.9°F (2.7°C) and an average low of 23°F (-5°C). Weather in January »

Weather in February

The last month of the winter, February, is also an icy month in Harrisburg, Missouri, with temperature in the range of an average high of 41.4°F (5.2°C) and an average low of 26.2°F (-3.2°C). Harrisburg records an average high-temperature of a still cold 41.4°F (5.2°C) in February, maintaining a close correlation with January's 36.9°F (2.7°C). Weather in February »

Weather in March

March, the first month of the spring in Harrisburg, is a fresh month, with an average temperature ranging between max 54.1°F (12.3°C) and min 37.2°F (2.9°C). The arrival of March signals an increase in the average high-temperature, moving from a wintry 41.4°F (5.2°C) in February to a fresh 54.1°F (12.3°C). Weather in March »

Weather in April

April is a comfortable spring month in Harrisburg, Missouri, with temperature in the range of an average high of 64.9°F (18.3°C) and an average low of 46.4°F (8°C). The arrival of April brings a temperature shift, with the average high-temperature escalating from a cool 54.1°F (12.3°C) in March to a refreshing 64.9°F (18.3°C). Weather in April »

Weather in May

May, the last month of the spring in Harrisburg, is a warm month, with temperature in the range of an average high of 74.8°F (23.8°C) and an average low of 56.1°F (13.4°C). In Harrisburg, the onset of May comes with an increased average high-temperature, moving from April's comfortable 64.9°F (18.3°C) to a warm 74.8°F (23.8°C). Weather in May »

Weather in June

June, the first month of the summer in Harrisburg, is still a warm month, with temperature in the range of an average low of 65.1°F (18.4°C) and an average high of 84.7°F (29.3°C). The shift into June is characterized by a rise in the average high-temperature, transitioning from May's 74.8°F (23.8°C) to a still moderately hot 84.7°F (29.3°C). Weather in June »

Weather in July

July is a hot summer month in Harrisburg, Missouri, with an average temperature varying between 87.6°F (30.9°C) and 68°F (20°C). Harrisburg's warmest weather arrives in July, when temperatures average a high of 87.6°F (30.9°C) and a low of 68°F (20°C). July's mean heat index is computed to be a very hot 102.2°F (39°C). Weather in July »

Weather in August

The last month of the summer, August, is also a hot month in Harrisburg, Missouri, with an average temperature varying between 65.8°F (18.8°C) and 86°F (30°C). The average high-temperature in August, at a still hot 86°F (30°C), reveals a modest deviation from July's 87.6°F (30.9°C). Weather in August »

Weather in September

September, the first month of the autumn in Harrisburg, is still a warm month, with an average temperature ranging between min 59°F (15°C) and max 79.5°F (26.4°C). With the onset of September, Harrisburg's climate undergoes a slight change as the average high-temperature moves from a tropical 86°F (30°C) in August to a moderately hot 79.5°F (26.4°C). Weather in September »

Weather in October

October, the same as September, is another comfortable autumn month in Harrisburg, Missouri, with an average temperature varying between 65.5°F (18.6°C) and 47.7°F (8.7°C). With October's onset, the weather shows a temperature decrease, transitioning from a warm 79.5°F (26.4°C) in September to a refreshing 65.5°F (18.6°C). Weather in October »

Weather in November

The last month of the autumn, November, is also a fresh month in Harrisburg, Missouri, with an average temperature fluctuating between 52.7°F (11.5°C) and 36.9°F (2.7°C). The start of November comes with a reduction in the average high-temperature, receding from an enjoyable 65.5°F (18.6°C) in October to a fresh 52.7°F (11.5°C). Weather in November »

Weather in December

December, the first month of the winter in Harrisburg, is also a wintry month, with an average temperature ranging between max 41.5°F (5.3°C) and min 28.4°F (-2°C). December's arrival comes with a decrease in the average high-temperature, moving from a fresh 52.7°F (11.5°C) in November to a cold 41.5°F (5.3°C). Weather in December »

Frequently asked questions

What is the coldest month?

Harrisburg's January weather, with an average high temperature of 36.9°F (2.7°C) and an average low temperature of 23°F (-5°C), tends to be the coldest of the year.

What is the driest month?

The months with the least rainfall are January and February Rain falls for 3.8 days and accumulates 0.43" (11mm) of rain.

How much does it rain?

Throughout the year, there are 95.5 rainfall days, and 8.62" (219mm) of precipitation is accumulated.

When does it snow?

January through March, October through December are months with snowfall.

What is the snowiest month?

The month with the most snowfall is January, when snow falls for 4.9 days and typically aggregates up to 0.67" (17mm) of snow.

How many days does it snow?

In Harrisburg, during the entire year, snow falls for 17 days and aggregates up to 1.93" (49mm) of snow.

What is the month with the least sunshine?

January and February, with an average of 4.7h of sunshine, are months with the least sunshine.

When is the lowest UV index in Harrisburg?

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?

In Harrisburg, snow does not fall in April through September.

What is the most humid month in Harrisburg?

With an average relative humidity of 78%, May is the most humid month.

What is the rainiest month?

The month with the most rainfall is May, when the rain falls for 11.3 days and typically aggregates up to 1.3" (33mm) of precipitation.

When are the longest days?

June has the longest days of the year, with an average of 14h and 54min of daylight.

What are the months with the most sunshine?

The months with the most sunshine are June and July, with an average of 10.4h of sunshine.

When is the highest UV index?

June through August, with an average maximum UV index of 6, are months with the highest UV index.

What month is the hottest?

In Harrisburg, temperatures reach their average annual highs in July, measuring 87.6°F (30.9°C) and a minimum average of 68°F (20°C).

What is the least humid month?

The least humid month is October, with an average relative humidity of 71%.

What is the month with the shortest days?

December has the shortest days of the year, with an average of 9h and 30min of daylight.

Average temperature
Harrisburg, MO

Average temperature - Harrisburg, MO

The warmest month (with the highest average high temperature) is July (87.6°F).
The month with the lowest average high temperature is January (36.9°F).

The month with the highest average low temperature is July (68°F).
The coldest month (with the lowest average low temperature) is January (23°F).

Average pressure
Harrisburg, MO

Average pressure - Harrisburg, MO

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

Average wind speed
Harrisburg, MO

Average wind speed - Harrisburg, MO

The windiest months (with the highest average wind speed) are January and March (9.4mph).
The calmest month (with the lowest average wind speed) is July (6.1mph).

Average humidity
Harrisburg, MO

Average humidity - Harrisburg, MO

The month with the highest relative humidity is May (78%).
The month with the lowest relative humidity is October (71%).

Average rainfall
Harrisburg, MO

Average rainfall - Harrisburg, MO

The wettest month (with the highest rainfall) is May (1.3").
The driest months (with the least rainfall) are January and February (0.43").

Average rainfall days
Harrisburg, MO

Average rainfall days - Harrisburg, MO

The months with the highest number of rainy days are April and May (11.3 days).
The month with the least rainy days is January (3.8 days).

Average snowfall
Harrisburg, MO

Average snowfall - Harrisburg, MO

The month with the highest snowfall is January (0.67").
The months with the least snowfall are April, May, June, July, August and September (0").

Average snowfall days
Harrisburg, MO

Average snowfall days - Harrisburg, MO

The month with the highest number of snowfall days is February (5.3 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight / Average sunshine
Harrisburg, MO

Average daylight / Average sunshine - Harrisburg, MO

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 30min).

The months with the most sunshine are June and July (Average sunshine: 10h and 24min).
The months with the least sunshine are January and February (Average sunshine: 4h and 42min).

Average sunshine days
Harrisburg, MO

Average sunshine days - Harrisburg, MO

The month with the most sunshine days is December (23.7 days).
The month with the least sunshine days is May (15.6 days).

Average UV index
Harrisburg, MO

Average UV index - Harrisburg, MO

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
Harrisburg, MO

Average cloud cover - Harrisburg, MO

The months with the most cloud cover are January, February and March (Cloud cover 49).
The months with the least cloud cover are June, July and August (Cloud cover 29).

Average visibility
Harrisburg, MO

Average visibility - Harrisburg, MO

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).

Harrisburg, Missouri, USA

Weather forecast for your location

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