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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 Herculaneum, Missouri, is an icy winter month, with an average temperature fluctuating between 39°F (3.9°C) and 25.2°F (-3.8°C). The coldest month is January, with an average high-temperature of 39°F (3.9°C) and an average low-temperature of 25.2°F (-3.8°C). Weather in January »
Weather in February
The last month of the winter, February, is a frosty month in Herculaneum, Missouri, with an average temperature ranging between min 28.4°F (-2°C) and max 43.5°F (6.4°C). Herculaneum's February showcases an average high-temperature of a chilly 43.5°F (6.4°C), hardly distinct from January's 39°F (3.9°C). Weather in February »
Weather in March
The first month of the spring, March, is a cool month in Herculaneum, Missouri, with an average temperature ranging between min 38.1°F (3.4°C) and max 54.9°F (12.7°C). Herculaneum's transition into March is marked by a temperature shift, moving from a frosty 43.5°F (6.4°C) in February to a fresh 54.9°F (12.7°C). Weather in March »
Weather in April
April in Herculaneum, Missouri, is an enjoyable spring month, with an average temperature varying between 65.8°F (18.8°C) and 47.7°F (8.7°C). As March transitions into April, a change in temperatures is observed, with average highs moving from a cool 54.9°F (12.7°C) to a refreshing 65.8°F (18.8°C). Weather in April »
Weather in May
May, the last month of the spring in Herculaneum, is a moderately hot month, with an average temperature fluctuating between 57°F (13.9°C) and 75.6°F (24.2°C). May sees a rise in the average high-temperature, climbing from a refreshing 65.8°F (18.8°C) in April to a moderately hot 75.6°F (24.2°C). Weather in May »
Weather in June
June, the first month of the summer in Herculaneum, is still a warm month, with an average temperature fluctuating between 84.9°F (29.4°C) and 65.3°F (18.5°C). As Herculaneum, Missouri, transitions into June, the average high-temperature shows a change, moving from a moderately hot 75.6°F (24.2°C) in May to a still warm 84.9°F (29.4°C). Weather in June »
Weather in July
July is a hot summer month in Herculaneum, Missouri, with an average temperature fluctuating between 88°F (31.1°C) and 68.2°F (20.1°C). July temperatures tend to peak at an average high of 88°F (31.1°C) and dip to a low of 68.2°F (20.1°C). In July, the average heat index is calculated to be a blistering 104°F (40°C). Weather in July »
Weather in August
The last month of the summer, August, is another hot month in Herculaneum, Missouri, with an average temperature fluctuating between 86.2°F (30.1°C) and 66.4°F (19.1°C). The transition into August marks the average high-temperature at a still hot 86.2°F (30.1°C), differing minimally from July's 88°F (31.1°C). Weather in August »
Weather in September
September, the first month of the autumn in Herculaneum, 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 arrival of September is marked by a minor reduction in average high-temperature, sliding from a hot 86.2°F (30.1°C) in August to a warm 79.7°F (26.5°C). Weather in September »
Weather in October
October, the same as September, is another enjoyable autumn month in Herculaneum, Missouri, with an average temperature varying between 67.1°F (19.5°C) and 49.1°F (9.5°C). The beginning of October marks a decrease in the average high-temperature, transitioning from a moderately hot 79.7°F (26.5°C) in September to a refreshing 67.1°F (19.5°C). Weather in October »
Weather in November
November, the last month of the autumn in Herculaneum, is another cool month, with temperature in the range of an average low of 38.1°F (3.4°C) and an average high of 54°F (12.2°C). The arrival of November signals a shift in temperature, down from an enjoyable 67.1°F (19.5°C) in October to a cool 54°F (12.2°C). Weather in November »
Weather in December
The first month of the winter, December, is still a chilly month in Herculaneum, Missouri, with an average temperature ranging between max 43.5°F (6.4°C) and min 30.7°F (-0.7°C). Herculaneum's progression into December includes a drop in the average high-temperature, from a cool 54°F (12.2°C) in November to a chilly 43.5°F (6.4°C). Weather in December »
[Resources]Frequently asked questions
What is the coldest month in Herculaneum?
Herculaneum, Missouri, witnesses the coldest weather in January, with temperatures averaging a high of 39°F (3.9°C) and a low of 25.2°F (-3.8°C).
How much does it rain in Herculaneum?
In Herculaneum, Missouri, during the entire year, the rain falls for 155 days and collects up to 34.92" (887mm) of precipitation.
When does it snow in Herculaneum?
Months with snowfall in Herculaneum, Missouri, are January through March, November and December.
When does it snow the most in Herculaneum?
January is the month with the most snowfall in Herculaneum. Snow falls for 6.8 days and accumulates 2.36" (60mm) of snow.
How much does it snow in Herculaneum?
In Herculaneum, during the entire year, snow falls for 19.9 days and aggregates up to 8.43" (214mm) of snow.
What is the month with the least sunshine in Herculaneum?
January has the least sunshine of the year, with an average of 4.8h of sunshine.
When is the lowest UV index in Herculaneum?
The months with the lowest UV index in Herculaneum are January, February, November and December, with an average maximum UV index of 2.
What is the driest month in Herculaneum?
The month with the least rainfall in Herculaneum, Missouri, is February, when the rain falls for 9.6 days and typically collects 1.97" (50mm) of precipitation.
When is Daylight Saving Time (DST) in Herculaneum?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Herculaneum, Missouri, 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 Herculaneum?
April through October are months without snowfall in Herculaneum.
What is the most humid month in Herculaneum?
The most humid month in Herculaneum, Missouri, is May, with an average relative humidity of 79%.
What is the wettest month in Herculaneum?
The month with the most rainfall in Herculaneum is May, when the rain falls for 16.7 days and typically aggregates up to 4.25" (108mm) of precipitation.
When is the highest UV index in Herculaneum?
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 Herculaneum?
June has the longest days of the year in Herculaneum, Missouri, with an average of 14h and 48min of daylight.
What is the month with the most sunshine in Herculaneum?
June and July, with an average of 10.5h of sunshine, are months with the most sunshine in Herculaneum, Missouri.
What is the warmest month in Herculaneum?
Temperature readings in Herculaneum reach their annual highs in July, averaging 88°F (31.1°C) and a minimum average of 68.2°F (20.1°C).
What is the least humid month in Herculaneum?
With an average relative humidity of 72%, October is the least humid month in Herculaneum, Missouri.
What is the month with the shortest days in Herculaneum?
December has the shortest days of the year, with an average of 9h and 36min of daylight.
Average temperature
Herculaneum, MO
The warmest month (with the highest average high temperature) is July (88°F).
The month with the lowest average high temperature is January (39°F).
The month with the highest average low temperature is July (68.2°F).
The coldest month (with the lowest average low temperature) is January (25.2°F).
Average pressure
Herculaneum, 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:
29.97"Hg - Average pressure in September:
30.02"Hg - Average pressure in October:
30.03"Hg - Average pressure in November:
30.13"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
Herculaneum, MO
- Average wind speed in January:
9mph - Average wind speed in February:
8.9mph - Average wind speed in March:
8.6mph - Average wind speed in April:
8.5mph - Average wind speed in May:
7mph - Average wind speed in June:
6.2mph
- Average wind speed in July:
5.3mph - Average wind speed in August:
5.2mph - Average wind speed in September:
5.6mph - Average wind speed in October:
7.3mph - Average wind speed in November:
8.1mph - Average wind speed in December:
8.3mph
The windiest month (with the highest average wind speed) is January (9mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).
Average humidity
Herculaneum, MO
The month with the highest relative humidity is May (79%).
The month with the lowest relative humidity is October (72%).
Average rainfall
Herculaneum, MO
- Average rainfall in January:
2.32" - Average rainfall in February:
1.97" - Average rainfall in March:
2.8" - Average rainfall in April:
3.82" - Average rainfall in May:
4.25" - Average rainfall in June:
3.54"
- Average rainfall in July:
3.11" - Average rainfall in August:
3.43" - Average rainfall in September:
2.13" - Average rainfall in October:
2.91" - Average rainfall in November:
2.09" - Average rainfall in December:
2.56"
The wettest month (with the highest rainfall) is May (4.25").
The driest month (with the least rainfall) is February (1.97").
Average rainfall days
Herculaneum, MO
- Average rainfall days in January:
8.2 days - Average rainfall days in February:
9.6 days - Average rainfall days in March:
14.8 days - Average rainfall days in April:
15.3 days - Average rainfall days in May:
16.7 days - Average rainfall days in June:
15.3 days
- Average rainfall days in July:
17.8 days - Average rainfall days in August:
14.6 days - Average rainfall days in September:
13 days - Average rainfall days in October:
11 days - Average rainfall days in November:
10.1 days - Average rainfall days in December:
8.6 days
The month with the highest number of rainy days is July (17.8 days).
The month with the least rainy days is January (8.2 days).
Average snowfall
Herculaneum, MO
The month with the highest snowfall is January (2.36").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days
Herculaneum, MO
- Average snowfall days in January:
6.8 days - Average snowfall days in February:
5.8 days - Average snowfall days in March:
1.8 days - Average snowfall days in April:
0 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:
1.5 days - Average snowfall days in December:
3.9 days
The month with the highest number of snowfall days is January (6.8 days).
The months with the least snowfall days are April, May, June, July, August and September (0 days).
Average daylight / Average sunshine
Herculaneum, 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 4min
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 36min).
- Average sunshine in January:
4h and 5min - Average sunshine in February:
4h and 5min - Average sunshine in March:
6h and 3min - Average sunshine in April:
8h and 4min - Average sunshine in May:
9h and 2min - Average sunshine in June:
10h and 3min
- Average sunshine in July:
10h and 3min - Average sunshine in August:
10h and 2min - Average sunshine in September:
9h and 3min - Average sunshine in October:
6h and 1min - Average sunshine in November:
5h and 4min - Average sunshine in December:
5h and 0min
The months with the most sunshine are June and July (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 48min).
Average sunshine days
Herculaneum, MO
- Average sunshine days in January:
17.9 days - Average sunshine days in February:
14.5 days - Average sunshine days in March:
13.1 days - Average sunshine days in April:
13.4 days - Average sunshine days in May:
12.3 days - Average sunshine days in June:
11.9 days
- Average sunshine days in July:
10.7 days - Average sunshine days in August:
13.8 days - Average sunshine days in September:
14.6 days - Average sunshine days in October:
18.4 days - Average sunshine days in November:
17.8 days - Average sunshine days in December:
19.2 days
The month with the most sunshine days is December (19.2 days).
The month with the least sunshine days is July (10.7 days).
Average UV index
Herculaneum, 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
Herculaneum, MO
The month with the most cloud cover is January (Cloud cover 49).
The months with the least cloud cover are June, July and August (Cloud cover 28).
Average visibility
Herculaneum, 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).
Herculaneum, Missouri, USA
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