Contents
- Weather in October
- Frequently asked questions
- Average temperature in October
- Average pressure in October
- Average wind speed in October
- Average humidity in October
- Average rainfall in October
- Average rainfall days in October
- Average snowfall in October
- Average snowfall days in October
- Average daylight in October
- Average sunshine in October
- Average sunshine days in October
- Average UV index in October
- Average cloud cover in October
- Average visibility in October
Weather in October
Temperature
October's arrival comes with a decrease in the average high-temperature, moving from a moderately hot 80.1°F (26.7°C) in September to a refreshing 66.6°F (19.2°C). Throughout October, the nighttime temperature averages to a chilly 48.9°F (9.4°C).Humidity
October is the least humid month, with an average relative humidity of 71%.Rainfall
In Eureka, in October, it is raining for 10.1 days, with typically 2.13" (54mm) of accumulated precipitation. Throughout the year, there are 134.1 rainfall days, and 23.82" (605mm) of precipitation is accumulated.Snowfall
April through October are months without snowfall.Daylight
In Eureka, the average length of the day in October is 11h and 11min.On the first day of the month, sunrise is at 6:59 am and sunset at 6:44 pm. On the last day of October, sunrise is at 7:28 am and sunset at 6:03 pm CDT.
Sunshine
In October, the average sunshine is 6h.UV index
In October, the average daily maximum UV index in Eureka is 3. A UV Index of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for the average person.Note: During October, 3 as the daily maximum UV index converts into the following advice:
Prioritize safety - Suggestions to prevent sun damage are offered. Around midday, solar radiation is most harmful; hence, exposure should be limited. Experience reduced UV exposure by about half when donning a wide-brim hat. Consider this! The reflection from snow can almost double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are October temperatures?
What is the least humid month?
What is the average humidity in October?
How much does it rain in Eureka in October?
When it does not snow?
Does it snow in Eureka in October?
How many hours of daylight does Eureka have in October?
What time are sunrise and sunset in October?
How many hours of sunshine does Eureka have in October?
What is the UV index reading in October?
Average temperature in October
Eureka, MO
- Average high temperature in October: 66.6°F
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).
- Average low temperature in October: 48.9°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 (24.6°F).
Average pressure in October
Eureka, MO
- Average pressure in October: 30.03"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 in October
Eureka, MO
- Average wind speed in October: 7.2mph
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 in October
Eureka, MO
- Average humidity in October: 71%
The month with the highest relative humidity is May (78%).
The month with the lowest relative humidity is October (71%).
Average rainfall in October
Eureka, MO
- Average rainfall in October: 2.13"
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 in October
Eureka, MO
- Average rainfall days in October: 10.1 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 in October
Eureka, MO
- Average snowfall in October: 0"
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 in October
Eureka, MO
- Average snowfall days in October: 0.1 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 in October /
Average sunshine in October
Eureka, MO
- Average daylight in October: 11h and 1min
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 October: 6h and 0min
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 in October
Eureka, MO
- Average sunshine days in October: 19.5 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 in October
Eureka, MO
- Average UV index in October: 3
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 in October
Eureka, MO
- Average cloud cover in October: 34
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 in October
Eureka, MO
- Average visibility in October: 6mi
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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