October weather forecast
Derby, IN

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Weather in October

October, like September, in Derby, Indiana, is another enjoyable autumn month, with an average temperature ranging between max 67.1°F (19.5°C) and min 49.1°F (9.5°C).

Temperature

Observing a mild shift, the average high-temperature during October reduces from September's warm 79.7°F (26.5°C) to a comfortable 67.1°F (19.5°C). October witnesses an average nighttime temperature of 49.1°F (9.5°C).

Humidity

With an average relative humidity of 73%, October is the least humid month in Derby.

Rainfall

In Derby, during October, the rain falls for 8.4 days and regularly aggregates up to 1.26" (32mm) of precipitation. In Derby, during the entire year, the rain falls for 133.4 days and collects up to 17.99" (457mm) of precipitation.

Snowfall

January through April, October through December are months with snowfall. October is the first month it typically snows in Derby, Indiana. Throughout October, in the average 0.4 snowfall days, it receives 0.04" (1mm) of snow. Throughout the year, in Derby, there are 20.2 snowfall days, and 4.02" (102mm) of snow is accumulated.

Daylight

In Derby, the average length of the day in October is 11h and 12min.
On the first day of October, sunrise is at 6:42 am and sunset at 6:28 pm. On the last day of the month, sunrise is at 7:11 am and sunset at 5:47 pm CDT.

Sunshine

In Derby, the average sunshine in October is 6.9h.

UV index

In October, the average daily maximum UV index in Derby is 3. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for the average person.
Note: An average maximum UV index of 3 in October leads to these recommendations:
Guard yourself - An obligation to protect skin and eyes from harm exists. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear. Take precaution! The reflection from snow can almost double the UV radiation of the Sun.
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Frequently asked questions

What is the usual temperature for Derby in October?

In Derby, 67.1°F (19.5°C) is the average high-temperature and 49.1°F (9.5°C) is the average low-temperature during October. In August, the average heat index (a.k.a. 'felt air temperature', 'feels like'), which factors the actual air temperature with the relative humidity, is appraised at 96.8°F (36°C).

What is the least humid month in Derby?

The least humid month in Derby is October, with an average relative humidity of 73%.

What is the average humidity in October in Derby?

The average relative humidity in October in Derby, Indiana, is 73%.

How many days does it rain in October in Derby?

In Derby, Indiana, in October, it is raining for 8.4 days, with typically 1.26" (32mm) of accumulated precipitation.

When does it start to snow in Derby?

October is the first month it typically snows in Derby, Indiana. Throughout October, in the average 0.4 snowfall days, it receives 0.04" (1mm) of snow.

How many hours of daylight does Derby have in October?

In Derby, the average day length in October is 11h and 12min.

When is the sunrise / sunset in October in Derby?

In October, on the first day of the month, sunrise is at 6:42 am and sunset at 6:28 pm. On the last day of the month, sunrise is at 7:11 am and sunset at 5:47 pm CDT.

How many hours of sunshine does Derby have in October?

In October, the average sunshine duration in Derby, Indiana, is 6.9h.

What is the UV index intensity in October in Derby?

In October, the average daily maximum UV index in Derby is 3. A UV Index value of 3 to 5 symbolizes a medium hazard to health from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in October
Derby, IN

Average temperature in October - Derby, IN
  • Average high temperature in October: 67.1°F

The warmest month (with the highest average high temperature) is July (86.5°F).
The month with the lowest average high temperature is January (39.7°F).

  • Average low temperature in October: 49.1°F

The month with the highest average low temperature is July (67.6°F).
The coldest month (with the lowest average low temperature) is January (26.6°F).

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Average pressure in October
Derby, IN

Average pressure in October - Derby, IN
  • Average pressure in October: 30.05"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).

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Average wind speed in October
Derby, IN

Average wind speed in October - Derby, IN
  • Average wind speed in October: 7mph

The windiest months (with the highest average wind speed) are January, February and April (8.1mph).
The calmest month (with the lowest average wind speed) is July (5mph).

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Average humidity in October
Derby, IN

Average humidity in October - Derby, IN
  • Average humidity in October: 73%

The months with the highest relative humidity are February and May (80%).
The month with the lowest relative humidity is October (73%).

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Average rainfall in October
Derby, IN

Average rainfall in October - Derby, IN
  • Average rainfall in October: 1.26"

The wettest month (with the highest rainfall) is April (2.13").
The driest month (with the least rainfall) is September (0.75").

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Average rainfall days in October
Derby, IN

Average rainfall days in October - Derby, IN
  • Average rainfall days in October: 8.4 days

The month with the highest number of rainy days is May (15.1 days).
The month with the least rainy days is October (8.4 days).

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Average snowfall in October
Derby, IN

Average snowfall in October - Derby, IN
  • Average snowfall in October: 0.04"

The month with the highest snowfall is January (1.3").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in October
Derby, IN

Average snowfall days in October - Derby, IN
  • Average snowfall days in October: 0.4 days

The month with the highest number of snowfall days is February (6.1 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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Average daylight in October /
Average sunshine in October
Derby, IN

Average daylight in October / Average sunshine in October - Derby, IN
  • 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 36min).

  • Average sunshine in October: 6h and 5min

The month with the most sunshine is August (Average sunshine: 10h and 30min).
The months with the least sunshine are January and February (Average sunshine: 4h and 18min).

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Average sunshine days in October
Derby, IN

Average sunshine days in October - Derby, IN
  • Average sunshine days in October: 20 days

The month with the most sunshine days is October (20 days).
The month with the least sunshine days is May (12.5 days).

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Average UV index in October
Derby, IN

Average UV index in October - Derby, IN
  • Average UV index in October: 3

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).

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Average cloud cover in October
Derby, IN

Average cloud cover in October - Derby, IN
  • Average cloud cover in October: 34

The month with the most cloud cover is January (Cloud cover 55).
The month with the least cloud cover is August (Cloud cover 28).

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Average visibility in October
Derby, IN

Average visibility in October - Derby, IN
  • Average visibility in October: 6mi

The months with the highest visibility are January, February, March, April, June, August, September, October, November and December (6mi).
The months with the lowest visibility are May and July (5mi).

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Derby, Indiana, USA

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