Climate and monthly weather forecast
Merwin, MO

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Weather in January

January, like December, in Merwin, Missouri, is an icy winter month, with an average temperature ranging between min 24.3°F (-4.3°C) and max 38.8°F (3.8°C). The month of January sees the lowest average temperatures, reaching 38.8°F (3.8°C) at the peak and 24.3°F (-4.3°C) at the low. Weather in January »

Weather in February

The last month of the winter, February, is a chilly month in Merwin, Missouri, with an average temperature ranging between max 43.2°F (6.2°C) and min 27.9°F (-2.3°C). The advent of February reveals an average high-temperature of a frosty 43.2°F (6.2°C), showing minimal difference from the prior month. Weather in February »

Weather in March

March, the first month of the spring in Merwin, is a cool month, with an average temperature varying between 55°F (12.8°C) and 38.5°F (3.6°C). March's arrival sees a rise in the average high-temperature, jumping from February's frosty 43.2°F (6.2°C) to a fresh 55°F (12.8°C). Weather in March »

Weather in April

April in Merwin, Missouri, is a refreshing spring month, with an average temperature ranging between min 46.9°F (8.3°C) and max 65.1°F (18.4°C). The commencement of April sees a shift in the average high-temperature, moving from a fresh 55°F (12.8°C) in March to a refreshing 65.1°F (18.4°C). Weather in April »

Weather in May

The last month of the spring, May, is an agreeable month in Merwin, Missouri, with an average temperature ranging between max 72.9°F (22.7°C) and min 56.3°F (13.5°C). May comes with a subtle rise, with the average high-temperature adjusting from an enjoyable 65.1°F (18.4°C) in April to a pleasant 72.9°F (22.7°C). Weather in May »

Weather in June

June, the first month of the summer in Merwin, is a moderately hot month, with an average temperature ranging between min 66.4°F (19.1°C) and max 83.3°F (28.5°C). The start of June brings a shift in the average high-temperature, increasing from May's agreeable 72.9°F (22.7°C) to a warm 83.3°F (28.5°C). Weather in June »

Weather in July

July is a tropical summer month in Merwin, Missouri, with an average temperature fluctuating between 68.9°F (20.5°C) and 86.5°F (30.3°C). In Merwin, Missouri, temperatures reach their average annual highs in July, measuring 86.5°F (30.3°C) and a minimum average of 68.9°F (20.5°C). In July, the heat index is estimated at a very hot 100.4°F (38°C). Weather in July »

Weather in August

August, the last month of the summer in Merwin, is another warm month, with an average temperature ranging between max 84.9°F (29.4°C) and min 65.8°F (18.8°C). Merwin's weather in August displays an average high-temperature of a moderately hot 84.9°F (29.4°C), showing minor disparity from July's 86.5°F (30.3°C). Weather in August »

Weather in September

September, the first month of the autumn in Merwin, is also a moderately hot month, with an average temperature fluctuating between 59.9°F (15.5°C) and 78.1°F (25.6°C). September's arrival aligns with a minor decrease in average high-temperatures, from August's 84.9°F (29.4°C) to a still moderately hot 78.1°F (25.6°C). Weather in September »

Weather in October

October, like September, in Merwin, Missouri, is another comfortable autumn month, with an average temperature ranging between min 48.2°F (9°C) and max 65.7°F (18.7°C). As September transitions into October, Merwin sees a drop in the average high-temperature, transitioning from a moderately hot 78.1°F (25.6°C) to a comfortable 65.7°F (18.7°C). Weather in October »

Weather in November

November, the last month of the autumn in Merwin, is also a fresh month, with an average temperature ranging between max 53.6°F (12°C) and min 37.8°F (3.2°C). In the transition to November, Merwin observes a drop in the average high-temperature, moving from a comfortable 65.7°F (18.7°C) in October to a cool 53.6°F (12°C). Weather in November »

Weather in December

December, the first month of the winter in Merwin, is still a chilly month, with temperature in the range of an average low of 28.9°F (-1.7°C) and an average high of 42.8°F (6°C). A decrease in the average high-temperature is observed during December, shifting from a fresh 53.6°F (12°C) in November to a chilly 42.8°F (6°C). Weather in December »
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Frequently asked questions

What time of the year is the coldest in Merwin?

Merwin's coldest month, January, generally records average temperatures ranging from a high of 38.8°F (3.8°C) to a low of 24.3°F (-4.3°C).

What is the driest month in Merwin?

January is the month with the least rainfall in Merwin. Rain falls for 3.5 days and accumulates 0.35" (9mm) of precipitation.

How many days does it rain in Merwin?

Throughout the year, there are 114.1 rainfall days, and 13.9" (353mm) of precipitation is accumulated.

When does it snow in Merwin?

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

How many days does it snow in Merwin?

Throughout the year, there are 11.5 snowfall days, and 2.2" (56mm) of snow is accumulated.

What is the month with the least sunshine in Merwin?

The month with the least sunshine in Merwin is January, with an average of 5.3h of sunshine.

What are the months with the lowest UV index in Merwin?

The months with the lowest UV index in Merwin, Missouri, are January, February, November and December, with an average maximum UV index of 2.

When does it snow the most in Merwin?

The month with the most snowfall in Merwin is February, when snow falls for 3.8 days and typically aggregates up to 0.71" (18mm) of snow.

When is Daylight Saving Time (DST) in Merwin?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Merwin, 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 Merwin?

In Merwin, Missouri, snow does not fall in April, June through September.

What is the most humid month in Merwin?

The most humid month in Merwin, Missouri, is May, with an average relative humidity of 81%.

What is the wettest month in Merwin?

The month with the most rainfall is May, when the rain falls for 15.2 days and typically aggregates up to 2.6" (66mm) of precipitation.

What is the month with the highest UV index in Merwin?

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 Merwin?

The month with the longest days in Merwin is June, with an average of 14h and 48min of daylight.

What month is the hottest in Merwin?

Merwin's temperature records reveal July as the warmest month, marked by average highs of 86.5°F (30.3°C) and lows of 68.9°F (20.5°C).

What month has the most sunshine in Merwin?

July has the most sunshine of the year, with an average of 10.5h of sunshine.

What is the least humid month in Merwin?

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

What is the month with the shortest days in Merwin?

The month with the shortest days is December, with an average of 9h and 30min of daylight.

Average temperature
Merwin, MO

Average temperature - Merwin, MO

The warmest month (with the highest average high temperature) is July (86.5°F).
The month with the lowest average high temperature is January (38.8°F).

The month with the highest average low temperature is July (68.9°F).
The coldest month (with the lowest average low temperature) is January (24.3°F).

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Average pressure
Merwin, MO

Average pressure - Merwin, MO

The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).

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Average wind speed
Merwin, MO

Average wind speed - Merwin, MO

The windiest month (with the highest average wind speed) is March (10.3mph).
The calmest months (with the lowest average wind speed) are July and August (6.6mph).

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Average rainfall
Merwin, MO

Average rainfall - Merwin, MO

The wettest month (with the highest rainfall) is May (2.6").
The driest month (with the least rainfall) is January (0.35").

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Average rainfall days
Merwin, MO

Average rainfall days - Merwin, MO

The month with the highest number of rainy days is May (15.2 days).
The month with the least rainy days is January (3.5 days).

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Average snowfall
Merwin, MO

Average snowfall - Merwin, MO

The month with the highest snowfall is February (0.71").
The months with the least snowfall are April, June, July, August and September (0").

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Average snowfall days
Merwin, MO

Average snowfall days - Merwin, MO

The month with the highest number of snowfall days is February (3.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight / Average sunshine
Merwin, MO

Average daylight / Average sunshine - Merwin, MO

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).

The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 5h and 18min).

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Average sunshine days
Merwin, MO

Average sunshine days - Merwin, MO

The month with the most sunshine days is January (25.2 days).
The month with the least sunshine days is May (12.8 days).

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Average UV index
Merwin, MO

Average UV index - Merwin, MO

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).

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Average visibility
Merwin, MO

Average visibility - Merwin, 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).

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Merwin, Missouri, USA

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