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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 Merwin, Missouri, is a wintry winter month, with an average temperature ranging between max 38.8°F (3.8°C) and min 24.3°F (-4.3°C). January, having an average high-temperature of 38.8°F (3.8°C) and an average low-temperature of 24.3°F (-4.3°C), is the coldest month. Weather in January »
Weather in February
The last month of the winter, February, is a chilly month in Merwin, Missouri, with an average temperature varying between 43.2°F (6.2°C) and 27.9°F (-2.3°C). The transition from January to February sees an average high-temperature of a frosty 43.2°F (6.2°C), indicating a minor variance from the prior month. Weather in February »
Weather in March
The first month of the spring, March, is a cool month in Merwin, Missouri, with temperature in the range of an average high of 55°F (12.8°C) and an average low of 38.5°F (3.6°C). The rise of average high-temperatures is seen in March, with an increase from a frosty 43.2°F (6.2°C) in February to a cool 55°F (12.8°C). Weather in March »
Weather in April
April is a comfortable spring month in Merwin, Missouri, with temperature in the range of an average high of 65.1°F (18.4°C) and an average low of 46.9°F (8.3°C). The beginning of April marks a shift in the average high-temperature, moving from March's cool 55°F (12.8°C) to a refreshing 65.1°F (18.4°C). Weather in April »
Weather in May
The last month of the spring, May, is a pleasant 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). A minor escalation in the average high-temperature is seen with the onset of May, moving from a refreshing 65.1°F (18.4°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 Merwin, is a warm month, with temperature in the range of an average low of 66.4°F (19.1°C) and an average high of 83.3°F (28.5°C). As May transitions into June, Merwin sees a rise in the average high-temperature, moving from a pleasant 72.9°F (22.7°C) to a moderately hot 83.3°F (28.5°C). Weather in June »
Weather in July
July is a hot summer month in Merwin, Missouri, with temperature in the range of an average low of 68.9°F (20.5°C) and an average high of 86.5°F (30.3°C). July, marked by an average high-temperature of 86.5°F (30.3°C) and a low-temperature of 68.9°F (20.5°C), is the warmest month. For most parts of July, the heat index is estimated at a very hot 100.4°F (38°C). Weather in July »
Weather in August
The last month of the summer, August, is also a moderately hot month in Merwin, Missouri, with an average temperature fluctuating between 84.9°F (29.4°C) and 65.8°F (18.8°C). Merwin signifies an average high-temperature of a warm 84.9°F (29.4°C) in August, closely mirroring the 86.5°F (30.3°C) of July. Weather in August »
Weather in September
The first month of the autumn, September, is still a warm month in Merwin, Missouri, with an average temperature varying between 59.9°F (15.5°C) and 78.1°F (25.6°C). September brings a slight decrease in the average high-temperature, shifting from 84.9°F (29.4°C) in August 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 enjoyable autumn month, with an average temperature varying between 48.2°F (9°C) and 65.7°F (18.7°C). The onset of October results in a decrease in the average high-temperature, receding from a moderately hot 78.1°F (25.6°C) in September 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 varying between 37.8°F (3.2°C) and 53.6°F (12°C). The onset of November results in a decrease in the average high-temperature, receding 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 also a frosty month, with an average temperature ranging between max 42.8°F (6°C) and min 28.9°F (-1.7°C). December's onset corresponds with a shift in the average high-temperature, moving from a cool 53.6°F (12°C) in November to a frosty 42.8°F (6°C). Weather in December »
Updated: Jun 20, 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 part of the year is the coldest?
January, with an average high of 38.8°F (3.8°C) and a low of 24.3°F (-4.3°C), signifies the coldest month of the year.
What is the driest month?
January is the month with the least rainfall. 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?
Months with snowfall are January through March, May, October through December.
How much does it snow?
In Merwin, during the entire year, snow falls for 11.5 days and aggregates up to 2.2" (56mm) of snow.
What is the month with the least sunshine?
With an average of 5.3h of sunshine, January has the least sunshine of the year.
What is the month with the lowest UV index?
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index.
When does it snow the most?
February is the month with the most snowfall in Merwin. Snow falls for 3.8 days and accumulates 0.71" (18mm) of snow.
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 Merwin, snow does not fall in April, June through September.
What is the most humid month?
May is the most humid month in Merwin, with an average relative humidity of 81%.
What is the wettest month?
May is the month with the most rainfall. Rain falls for 15.2 days and accumulates 2.6" (66mm) of precipitation.
What are the months with the highest UV index?
May through August, with an average maximum UV index of 6, are months with the highest UV index.
When are the longest days?
June has the longest days of the year, with an average of 14h and 48min of daylight.
What part of the year is the hottest?
July, with its average high-temperature of 86.5°F (30.3°C) and an average low-temperature of 68.9°F (20.5°C), holds the record as the warmest month.
What month has the most sunshine?
With an average of 10.5h of sunshine, July has the most sunshine of the year.
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
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).
Average pressure
Merwin, MO
- Average pressure in January:
30.17"Hg - Average pressure in February:
30.13"Hg - Average pressure in March:
30.05"Hg - Average pressure in April:
29.92"Hg - Average pressure in May:
29.93"Hg - Average pressure in June:
29.9"Hg
- Average pressure in July:
29.96"Hg - Average pressure in August:
29.96"Hg - Average pressure in September:
30.01"Hg - Average pressure in October:
30.03"Hg - Average pressure in November:
30.11"Hg - Average pressure in December:
30.14"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed
Merwin, MO
- Average wind speed in January:
9.9mph - Average wind speed in February:
10.2mph - Average wind speed in March:
10.3mph - Average wind speed in April:
10.1mph - Average wind speed in May:
8.4mph - Average wind speed in June:
8mph
- Average wind speed in July:
6.6mph - Average wind speed in August:
6.6mph - Average wind speed in September:
7.1mph - Average wind speed in October:
8.9mph - Average wind speed in November:
9.6mph - Average wind speed in December:
9.5mph
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).
Average humidity
Merwin, MO
The month with the highest relative humidity is May (81%).
The month with the lowest relative humidity is October (71%).
Average rainfall
Merwin, MO
- Average rainfall in January:
0.35" - Average rainfall in February:
0.43" - Average rainfall in March:
1.06" - Average rainfall in April:
1.34" - Average rainfall in May:
2.6" - Average rainfall in June:
1.5"
- Average rainfall in July:
1.65" - Average rainfall in August:
1.5" - Average rainfall in September:
1.34" - Average rainfall in October:
1.02" - Average rainfall in November:
0.39" - Average rainfall in December:
0.71"
The wettest month (with the highest rainfall) is May (2.6").
The driest month (with the least rainfall) is January (0.35").
Average rainfall days
Merwin, MO
- Average rainfall days in January:
3.5 days - Average rainfall days in February:
5.3 days - Average rainfall days in March:
10.2 days - Average rainfall days in April:
12.3 days - Average rainfall days in May:
15.2 days - Average rainfall days in June:
13 days
- Average rainfall days in July:
13.2 days - Average rainfall days in August:
12 days - Average rainfall days in September:
10.7 days - Average rainfall days in October:
8.4 days - Average rainfall days in November:
6 days - Average rainfall days in December:
4.3 days
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).
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").
Average snowfall days
Merwin, MO
- Average snowfall days in January:
2.8 days - Average snowfall days in February:
3.8 days - Average snowfall days in March:
1.6 days - Average snowfall days in April:
0.1 days - Average snowfall days in May:
0.3 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:
0.3 days - Average snowfall days in November:
0.6 days - Average snowfall days in December:
2 days
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).
Average daylight / Average sunshine
Merwin, MO
- 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 3min - 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:
5h and 2min - Average sunshine in February:
5h and 3min - Average sunshine in March:
6h and 3min - Average sunshine in April:
8h and 2min - Average sunshine in May:
8h and 4min - Average sunshine in June:
10h and 2min
- Average sunshine in July:
10h and 3min - Average sunshine in August:
10h and 1min - Average sunshine in September:
9h and 1min - Average sunshine in October:
6h and 1min - Average sunshine in November:
5h and 4min - Average sunshine in December:
5h and 3min
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).
Average sunshine days
Merwin, MO
- Average sunshine days in January:
25.2 days - Average sunshine days in February:
18.8 days - Average sunshine days in March:
17.8 days - Average sunshine days in April:
15.8 days - Average sunshine days in May:
12.8 days - Average sunshine days in June:
13.9 days
- Average sunshine days in July:
14.3 days - Average sunshine days in August:
16.6 days - Average sunshine days in September:
17 days - Average sunshine days in October:
21.5 days - Average sunshine days in November:
21.5 days - Average sunshine days in December:
25.1 days
The month with the most sunshine days is January (25.2 days).
The month with the least sunshine days is May (12.8 days).
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).
Average cloud cover
Merwin, MO
The month with the most cloud cover is March (Cloud cover 46).
The months with the least cloud cover are July and August (Cloud cover 26).
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).
Merwin, Missouri, USA
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