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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, the same as December, is an icy winter month in Arnold, Missouri, with an average temperature varying between 37.9°F (3.3°C) and 25°F (-3.9°C). With average high and low temperatures of 37.9°F (3.3°C) and 25°F (-3.9°C) respectively, January is Arnold's coldest month. Weather in January »
Weather in February
The last month of the winter, February, is another cold month in Arnold, Missouri, with temperature in the range of an average high of 42.6°F (5.9°C) and an average low of 28.4°F (-2°C). Arnold's average high-temperature in February is a still cold 42.6°F (5.9°C), marking an insignificant difference from the 37.9°F (3.3°C) of January. Weather in February »
Weather in March
The first month of the spring, March, is a fresh month in Arnold, Missouri, with an average temperature fluctuating between 38.1°F (3.4°C) and 54.5°F (12.5°C). Arnold sees a rise in temperature during March, with average high-temperatures transitioning from an icy 42.6°F (5.9°C) in February to a cool 54.5°F (12.5°C). Weather in March »
Weather in April
April in Arnold, Missouri, is a refreshing spring month, with an average temperature ranging between max 65.7°F (18.7°C) and min 48°F (8.9°C). Arnold in April shows a temperature shift, moving from an average high of a cool 54.5°F (12.5°C) in March to an enjoyable 65.7°F (18.7°C). Weather in April »
Weather in May
May, the last month of the spring in Arnold, is a moderately hot month, with an average temperature varying between 57.7°F (14.3°C) and 75.4°F (24.1°C). As Arnold transitions into May, the average high-temperature shows a change, moving from a comfortable 65.7°F (18.7°C) in April to a moderately hot 75.4°F (24.1°C). Weather in May »
Weather in June
June, the first month of the summer in Arnold, is still a warm month, with an average temperature fluctuating between 84°F (28.9°C) and 66.7°F (19.3°C). Arnold's transition into June is noticed by a slight rise in the average high-temperature, advancing from 75.4°F (24.1°C) in May to a still moderately hot 84°F (28.9°C). Weather in June »
Weather in July
July is a tropical summer month in Arnold, Missouri, with an average temperature varying between 69.3°F (20.7°C) and 86.9°F (30.5°C). July, characterized by an average high temperature of 86.9°F (30.5°C) and a low temperature of 69.3°F (20.7°C), is generally the warmest month. The average heat index in July is evaluated at a fiery hot 100.4°F (38°C). Weather in July »
Weather in August
The last month of the summer, August, is another warm month in Arnold, Missouri, with temperature in the range of an average high of 85.6°F (29.8°C) and an average low of 66.9°F (19.4°C). Arnold notes an average high-temperature of a moderately hot 85.6°F (29.8°C) in August, displaying minor variation from July. Weather in August »
Weather in September
September, the first month of the autumn in Arnold, is also a moderately hot month, with an average temperature fluctuating between 79.7°F (26.5°C) and 59.9°F (15.5°C). The start of September involves a subtle temperature drop, shifting from a moderately hot 85.6°F (29.8°C) in August to a still warm 79.7°F (26.5°C). Weather in September »
Weather in October
October, like September, in Arnold, Missouri, is another comfortable autumn month, with an average temperature varying between 49.1°F (9.5°C) and 66.4°F (19.1°C). October brings a minor decrease, with the average high-temperature reducing from a warm 79.7°F (26.5°C) in September to a refreshing 66.4°F (19.1°C). Weather in October »
Weather in November
The last month of the autumn, November, is also a fresh month in Arnold, Missouri, with temperature in the range of an average high of 53.8°F (12.1°C) and an average low of 37.9°F (3.3°C). With November's arrival, Arnold sees a decrease in average high-temperatures, moving from a comfortable 66.4°F (19.1°C) in October to a cool 53.8°F (12.1°C). Weather in November »
Weather in December
The first month of the winter, December, is still a chilly month in Arnold, Missouri, with temperature in the range of an average low of 30.7°F (-0.7°C) and an average high of 43.2°F (6.2°C). With December's onset, the weather shows a temperature decrease, transitioning from a fresh 53.8°F (12.1°C) in November to a frosty 43.2°F (6.2°C). Weather in December »
[Resources]Frequently asked questions
What is the coldest month in Arnold?
January is the month when Arnold, Missouri, sees the average lowest temperatures, with a high of 37.9°F (3.3°C) and a low of 25°F (-3.9°C).
How much does it rain in Arnold?
In Arnold, Missouri, during the entire year, the rain falls for 146.1 days and collects up to 32.36" (822mm) of precipitation.
When does it snow in Arnold?
Months with snowfall in Arnold are January through March, November and December.
How much does it snow in Arnold?
Throughout the year, there are 15.3 snowfall days, and 8.27" (210mm) of snow is accumulated.
What is the month with the least sunshine in Arnold?
With an average of 4.5h of sunshine, January has the least sunshine of the year in Arnold.
What is the month with the lowest UV index in Arnold?
The months with the lowest UV index in Arnold are January, February and December, with an average maximum UV index of 2.
What is the driest month in Arnold?
February and November are months with the least rain when the rain falls for 6.8 days and typically aggregates up to 1.77" (45mm) of rain.
When does it snow the most in Arnold?
February is the month with the most snowfall in Arnold, Missouri. Snow falls for 4.8 days and accumulates 2.6" (66mm) of snow.
When is Daylight Saving Time (DST) in Arnold?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Arnold, 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 Arnold?
April through October are months without snowfall in Arnold, Missouri.
What is the most humid month in Arnold?
May is the most humid month in Arnold, Missouri, with an average relative humidity of 78%.
What is the rainiest month in Arnold?
The month with the most rainfall in Arnold is May, when the rain falls for 16.8 days and typically aggregates up to 3.94" (100mm) of precipitation.
What are the months with the highest UV index in Arnold?
May through August, with an average maximum UV index of 6, are months with the highest UV index in Arnold.
When are the longest days in Arnold?
June has the longest days of the year, with an average of 14h and 48min of daylight.
What month has the most sunshine in Arnold?
The month with the most sunshine is June, with an average of 10.4h of sunshine.
What is the warmest month in Arnold?
Arnold notes the warmest temperatures in July, with a average high of 86.9°F (30.5°C) and a low of 69.3°F (20.7°C).
What is the least humid month in Arnold?
With an average relative humidity of 71%, October is the least humid month in Arnold, Missouri.
What is the month with the shortest days in Arnold?
The month with the shortest days in Arnold, Missouri, is December, with an average of 9h and 30min of daylight.
Average temperature
Arnold, MO
The warmest month (with the highest average high temperature) is July (86.9°F).
The month with the lowest average high temperature is January (37.9°F).
The month with the highest average low temperature is July (69.3°F).
The coldest month (with the lowest average low temperature) is January (25°F).
Average pressure
Arnold, MO
- Average pressure in January:
30.16"Hg - Average pressure in February:
30.12"Hg - Average pressure in March:
30.07"Hg - Average pressure in April:
29.94"Hg - Average pressure in May:
29.96"Hg - Average pressure in June:
29.92"Hg
- Average pressure in July:
29.97"Hg - Average pressure in August:
29.98"Hg - Average pressure in September:
30.02"Hg - Average pressure in October:
30.03"Hg - Average pressure in November:
30.12"Hg - Average pressure in December:
30.13"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed
Arnold, MO
- Average wind speed in January:
9.1mph - Average wind speed in February:
9mph - Average wind speed in March:
8.8mph - Average wind speed in April:
8.8mph - Average wind speed in May:
7.1mph - Average wind speed in June:
6.4mph
- Average wind speed in July:
5.5mph - Average wind speed in August:
5.5mph - Average wind speed in September:
5.9mph - Average wind speed in October:
7.6mph - Average wind speed in November:
8.3mph - Average wind speed in December:
8.5mph
The windiest month (with the highest average wind speed) is January (9.1mph).
The calmest months (with the lowest average wind speed) are July and August (5.5mph).
Average humidity
Arnold, MO
The month with the highest relative humidity is May (78%).
The month with the lowest relative humidity is October (71%).
Average rainfall
Arnold, MO
- Average rainfall in January:
1.93" - Average rainfall in February:
1.77" - Average rainfall in March:
2.48" - Average rainfall in April:
3.43" - Average rainfall in May:
3.94" - Average rainfall in June:
3.7"
- Average rainfall in July:
3.27" - Average rainfall in August:
3.39" - Average rainfall in September:
2.13" - Average rainfall in October:
2.36" - Average rainfall in November:
1.77" - Average rainfall in December:
2.2"
The wettest month (with the highest rainfall) is May (3.94").
The driest months (with the least rainfall) are February and November (1.77").
Average rainfall days
Arnold, MO
- Average rainfall days in January:
6.8 days - Average rainfall days in February:
6.8 days - Average rainfall days in March:
14.1 days - Average rainfall days in April:
14.7 days - Average rainfall days in May:
16.8 days - Average rainfall days in June:
16 days
- Average rainfall days in July:
16.9 days - Average rainfall days in August:
14.1 days - Average rainfall days in September:
12.6 days - Average rainfall days in October:
9.7 days - Average rainfall days in November:
9.4 days - Average rainfall days in December:
8.2 days
The month with the highest number of rainy days is July (16.9 days).
The months with the least rainy days are January and February (6.8 days).
Average snowfall
Arnold, MO
The month with the highest snowfall is February (2.6").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days
Arnold, MO
- Average snowfall days in January:
4.8 days - Average snowfall days in February:
4.8 days - Average snowfall days in March:
1.5 days - Average snowfall days in April:
0.1 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:
0.1 days - Average snowfall days in November:
1 days - Average snowfall days in December:
3 days
The months with the highest number of snowfall days are January and February (4.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight / Average sunshine
Arnold, 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:
4h and 3min - Average sunshine in February:
4h and 4min - Average sunshine in March:
6h and 2min - Average sunshine in April:
8h and 2min - Average sunshine in May:
9h and 3min - Average sunshine in June:
10h and 2min
- Average sunshine in July:
10h and 2min - Average sunshine in August:
10h and 1min - Average sunshine in September:
9h and 2min - Average sunshine in October:
6h and 1min - 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 30min).
Average sunshine days
Arnold, MO
- Average sunshine days in January:
20.9 days - Average sunshine days in February:
16.8 days - Average sunshine days in March:
14.8 days - Average sunshine days in April:
14 days - Average sunshine days in May:
12.1 days - Average sunshine days in June:
11.6 days
- Average sunshine days in July:
11.8 days - Average sunshine days in August:
14.3 days - Average sunshine days in September:
15.5 days - Average sunshine days in October:
20.5 days - Average sunshine days in November:
18.8 days - Average sunshine days in December:
19.7 days
The month with the most sunshine days is January (20.9 days).
The month with the least sunshine days is June (11.6 days).
Average UV index
Arnold, 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 and December (UV index 2).
Average cloud cover
Arnold, MO
The month with the most cloud cover is January (Cloud cover 51).
The month with the least cloud cover is August (Cloud cover 28).
Average visibility
Arnold, 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).
Arnold, Missouri, USA
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