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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 another cold winter month in Eureka, Missouri, with an average temperature ranging between min 24.6°F (-4.1°C) and max 38.5°F (3.6°C). Eureka records the coldest temperatures in January, averaging a high of 38.5°F (3.6°C) and a low of 24.6°F (-4.1°C). Weather in January »
Weather in February
February, the last month of the winter in Eureka, is a frosty month, with an average temperature ranging between min 28°F (-2.2°C) and max 43°F (6.1°C). The advent of February observes an average high-temperature of a frosty 43°F (6.1°C), nearly identical to January's 38.5°F (3.6°C). Weather in February »
Weather in March
March, the first month of the spring in Eureka, is a cool month, with an average temperature ranging between min 38.1°F (3.4°C) and max 54.9°F (12.7°C). As February transitions into March, a change in temperatures is observed, with average highs moving from a chilly 43°F (6.1°C) to a cool 54.9°F (12.7°C). Weather in March »
Weather in April
April is a comfortable spring month in Eureka, Missouri, with an average temperature fluctuating between 65.8°F (18.8°C) and 47.8°F (8.8°C). An increase in the average high-temperature marks April, moving from March's fresh 54.9°F (12.7°C) to a refreshing 65.8°F (18.8°C). Weather in April »
Weather in May
The last month of the spring, May, is a warm month in Eureka, Missouri, with temperature in the range of an average high of 75.7°F (24.3°C) and an average low of 57.4°F (14.1°C). As Eureka enters May, the average high-temperature increases from the an enjoyable 65.8°F (18.8°C) of April to a moderately hot 75.7°F (24.3°C). Weather in May »
Weather in June
June, the first month of the summer in Eureka, is still a warm month, with an average temperature ranging between max 85.3°F (29.6°C) and min 66.4°F (19.1°C). June brings a rise in the average high-temperature, transitioning from May's 75.7°F (24.3°C) to a still warm 85.3°F (29.6°C). Weather in June »
Weather in July
July in Eureka, Missouri, is a tropical summer month, with an average temperature fluctuating between 69.3°F (20.7°C) and 88.2°F (31.2°C). In Eureka, Missouri, the month of July registers the highest temperatures, averaging 88.2°F (31.2°C) at the peak and 69.3°F (20.7°C) at the lowest. The average heat index in July is appraised at a blisteringly hot 104°F (40°C). Weather in July »
Weather in August
The last month of the summer, August, is another tropical month in Eureka, Missouri, with an average temperature fluctuating between 86.5°F (30.3°C) and 67.3°F (19.6°C). Entering August, the average high-temperature is recorded at a still tropical 86.5°F (30.3°C), exhibiting a minimal shift from July's 88.2°F (31.2°C). Weather in August »
Weather in September
The first month of the autumn, September, is also a moderately hot month in Eureka, Missouri, with temperature in the range of an average low of 59.9°F (15.5°C) and an average high of 80.1°F (26.7°C). September's arrival signals a moderate reduction in the average high-temperature, easing from a tropical 86.5°F (30.3°C) in August to a warm 80.1°F (26.7°C). Weather in September »
Weather in October
October, the same as September, is another enjoyable autumn month in Eureka, Missouri, with an average temperature varying between 48.9°F (9.4°C) and 66.6°F (19.2°C). The transition into October involves a decrease in the average high-temperature, falling from a warm 80.1°F (26.7°C) in September to a comfortable 66.6°F (19.2°C). Weather in October »
Weather in November
November, the last month of the autumn in Eureka, is also a fresh month, with an average temperature varying between 53.8°F (12.1°C) and 37.9°F (3.3°C). With November's onset, the average high-temperature recedes from October's refreshing 66.6°F (19.2°C) to a cool 53.8°F (12.1°C). Weather in November »
Weather in December
The first month of the winter, December, is also a frosty month in Eureka, Missouri, with an average temperature fluctuating between 43.3°F (6.3°C) and 30.2°F (-1°C). During the transition into December, Eureka observes a decrease in the average high-temperature, falling from a cool 53.8°F (12.1°C) in November to a chilly 43.3°F (6.3°C). Weather in December »
[Resources]Frequently asked questions
What part of the year is the coldest in Eureka?
In Eureka, January registers the lowest temperatures, averaging 38.5°F (3.6°C) at the peak and 24.6°F (-4.1°C) at the lowest.
How much does it rain in Eureka?
In Eureka, during the entire year, the rain falls for 134.1 days and collects up to 23.82" (605mm) of precipitation.
When does it snow in Eureka?
Months with snowfall in Eureka, Missouri, are January through March, November and December.
How many days does it snow in Eureka?
In Eureka, Missouri, during the entire year, snow falls for 19.5 days and aggregates up to 4.29" (109mm) of snow.
What is the month with the least sunshine in Eureka?
With an average of 4.6h of sunshine, January has the least sunshine of the year in Eureka.
What is the month with the lowest UV index in Eureka?
The months with the lowest UV index in Eureka are January, February and December, with an average maximum UV index of 2.
What is the driest month in Eureka?
The month with the least rainfall is February, when the rain falls for 6.7 days and typically collects 1.1" (28mm) of precipitation.
When is Daylight Saving Time (DST) in Eureka?
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 Eureka?
April through October are months without snowfall.
What is the most humid month in Eureka?
With an average relative humidity of 78%, May is the most humid month in Eureka, Missouri.
What is the wettest month in Eureka?
May is the month with the most rainfall. Rain falls for 16.3 days and accumulates 3.03" (77mm) of precipitation.
When are the longest days in Eureka?
With an average of 14h and 48min of daylight, June has the longest days of the year in Eureka.
What are the warmest months in Eureka?
The month of July sees the average highest temperatures, reaching 88.2°F (31.2°C) at the peak and 69.3°F (20.7°C) at the low.
What month has the most sunshine in Eureka?
The month with the most sunshine is July, with an average of 10.4h of sunshine.
When is the highest UV index in Eureka?
July is the month with the highest UV index in Eureka, Missouri, with an average maximum UV index of 7.
What is the least humid month in Eureka?
October is the least humid month, with an average relative humidity of 71%.
When does it snow the most in Eureka?
December is the month with the most snowfall. Snow falls for 4.1 days and accumulates 1.3" (33mm) of snow.
What is the month with the shortest days in Eureka?
With an average of 9h and 30min of daylight, December has the shortest days of the year in Eureka.
Average temperature
Eureka, MO
The warmest month (with the highest average high temperature) is July (88.2°F).
The month with the lowest average high temperature is January (38.5°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 (24.6°F).
Average pressure
Eureka, 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:
29.95"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:
30.12"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
Eureka, MO
- Average wind speed in January:
8.8mph - Average wind speed in February:
8.6mph - Average wind speed in March:
8.5mph - Average wind speed in April:
8.5mph - Average wind speed in May:
6.9mph - Average wind speed in June:
6.2mph
- Average wind speed in July:
5.3mph - Average wind speed in August:
5.3mph - Average wind speed in September:
5.7mph - Average wind speed in October:
7.2mph - Average wind speed in November:
7.9mph - Average wind speed in December:
8.1mph
The windiest month (with the highest average wind speed) is January (8.8mph).
The calmest months (with the lowest average wind speed) are July and August (5.3mph).
Average humidity
Eureka, MO
The month with the highest relative humidity is May (78%).
The month with the lowest relative humidity is October (71%).
Average rainfall
Eureka, MO
- Average rainfall in January:
1.26" - Average rainfall in February:
1.1" - Average rainfall in March:
1.65" - Average rainfall in April:
2.6" - Average rainfall in May:
3.03" - Average rainfall in June:
2.56"
- Average rainfall in July:
2.4" - Average rainfall in August:
2.68" - Average rainfall in September:
1.73" - Average rainfall in October:
2.13" - Average rainfall in November:
1.26" - Average rainfall in December:
1.42"
The wettest month (with the highest rainfall) is May (3.03").
The driest month (with the least rainfall) is February (1.1").
Average rainfall days
Eureka, MO
- Average rainfall days in January:
6.3 days - Average rainfall days in February:
6.7 days - Average rainfall days in March:
12.3 days - Average rainfall days in April:
13.3 days - Average rainfall days in May:
16.3 days - Average rainfall days in June:
13.8 days
- Average rainfall days in July:
15.7 days - Average rainfall days in August:
13.8 days - Average rainfall days in September:
11.6 days - Average rainfall days in October:
10.1 days - Average rainfall days in November:
8.1 days - Average rainfall days in December:
6.1 days
The month with the highest number of rainy days is May (16.3 days).
The month with the least rainy days is December (6.1 days).
Average snowfall
Eureka, MO
The month with the highest snowfall is December (1.3").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days
Eureka, MO
- Average snowfall days in January:
6.4 days - Average snowfall days in February:
5.3 days - Average snowfall days in March:
2 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:
0.1 days - Average snowfall days in October:
0.1 days - Average snowfall days in November:
1.4 days - Average snowfall days in December:
4.1 days
The month with the highest number of snowfall days is January (6.4 days).
The months with the least snowfall days are May, June, July and August (0 days).
Average daylight / Average sunshine
Eureka, 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 4min - 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 2min - 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 0min - Average sunshine in November:
5h and 3min - Average sunshine in December:
4h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 36min).
Average sunshine days
Eureka, MO
- Average sunshine days in January:
20.1 days - Average sunshine days in February:
16.9 days - Average sunshine days in March:
15.9 days - Average sunshine days in April:
15.6 days - Average sunshine days in May:
12.6 days - Average sunshine days in June:
12.8 days
- Average sunshine days in July:
13 days - Average sunshine days in August:
14.3 days - Average sunshine days in September:
16.9 days - Average sunshine days in October:
19.5 days - Average sunshine days in November:
19.8 days - Average sunshine days in December:
20.3 days
The month with the most sunshine days is December (20.3 days).
The month with the least sunshine days is May (12.6 days).
Average UV index
Eureka, MO
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February and December (UV index 2).
Average cloud cover
Eureka, MO
The month with the most cloud cover is January (Cloud cover 51).
The months with the least cloud cover are June, July and August (Cloud cover 29).
Average visibility
Eureka, 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).
Eureka, Missouri, USA
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