December weather forecast
Delphi, IN

Share

Weather in December

The first month of the winter, December, is still a cold month in Delphi, Indiana, with an average temperature ranging between min 27.1°F (-2.7°C) and max 37°F (2.8°C).

Temperature

December's onset brings a slight change in high-temperatures, falling from a chilly 48.2°F (9°C) in November to an icy 37°F (2.8°C). December witnesses an average nighttime temperature of 27.1°F (-2.7°C) in Delphi.

Humidity

The average relative humidity in December is 82%.

Rainfall

The month with the least rainfall in Delphi is December, when the rain falls for 8.6 days and typically collects 1.18" (30mm) of precipitation.

Snowfall

January through April, October through December are months with snowfall. In December, it is snowing for 7.2 days. Throughout December, 1.46" (37mm) of snow is accumulated. In Delphi, during the entire year, snow falls for 37.1 days and aggregates up to 8.15" (207mm) of snow.

Daylight

With an average of 9h and 18min of daylight, December has the shortest days of the year.
On the first day of December, sunrise is at 7:51 am and sunset at 5:20 pm. On the last day of the month, sunrise is at 8:10 am and sunset at 5:29 pm EST.

Sunshine

In Delphi, the average sunshine in December is 4.2h.

UV index

With an average maximum UV index of 1, December is the month with the lowest UV index. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from unsafe exposure to UV radiation for the average person.
Note: A maximum high UV index of 1 in December translates into the following recommendations:
Children, infants, and individuals with sensitive skin should be constantly protected from extended sun exposure. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades. Consider this! The reflection from snow can almost double the intensity of the Sun's UV radiation.
[Resources]

Frequently asked questions

How cold is December in Delphi?

In Delphi, in December, the average high-temperature is 37°F (2.8°C), and the average low-temperature is 27.1°F (-2.7°C). In July, the average heat index (a.k.a. 'felt air temperature', 'feels like'), which combines air temperature and relative humidity, is calculated to be 87.8°F (31°C).

What is the average humidity in December in Delphi?

The average relative humidity in December is 82%.

What is the driest month in Delphi?

The month with the least rainfall in Delphi, Indiana, is December, when the rain falls for 8.6 days and typically collects 1.18" (30mm) of precipitation.

How many days does it rain in December in Delphi?

In December, in Delphi, the rain falls for 8.6 days. Throughout December, 1.18" (30mm) of precipitation is accumulated.

How much does it snow in Delphi in December?

In December, in Delphi, Indiana, it is snowing for 7.2 days. Throughout December, 1.46" (37mm) of snow is accumulated.

What is the month with the shortest days in Delphi?

With an average of 9h and 18min of daylight, December has the shortest days of the year in Delphi, Indiana.

How many hours of daylight does Delphi have in December?

The average day length in December is 9h and 20min.

When is the sunrise / sunset in December in Delphi?

In December, on the first day of the month, sunrise is at 7:51 am and sunset at 5:20 pm. On the last day of the month, sunrise is at 8:10 am and sunset at 5:29 pm EST.

How many hours of sunshine does Delphi have in December?

The average sunshine duration in December is 4.2h.

When is the lowest UV index in Delphi?

The month with the lowest UV index is December, with an average maximum UV index of 1.

What is the UV index reading in December in Delphi?

In December, the average daily maximum UV index is 1. A UV Index value of 2, and less, symbolizes a low health threat from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Delphi, IN

Average temperature in December - Delphi, IN
  • Average high temperature in December: 37°F

The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (31.3°F).

  • Average low temperature in December: 27.1°F

The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (19.4°F).

[Resources]

Average pressure in December
Delphi, IN

Average pressure in December - Delphi, IN
  • Average pressure in December: 30.11"Hg

The months with the highest atmospheric pressure are January and November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

[Resources]

Average wind speed in December
Delphi, IN

Average wind speed in December - Delphi, IN
  • Average wind speed in December: 9.5mph

The windiest month (with the highest average wind speed) is January (10.3mph).
The calmest months (with the lowest average wind speed) are July and August (6.2mph).

[Resources]

Average humidity in December
Delphi, IN

Average humidity in December - Delphi, IN
  • Average humidity in December: 82%

The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (72%).

[Resources]

Average rainfall in December
Delphi, IN

Average rainfall in December - Delphi, IN
  • Average rainfall in December: 1.18"

The wettest month (with the highest rainfall) is April (2.64").
The driest month (with the least rainfall) is December (1.18").

[Resources]

Average rainfall days in December
Delphi, IN

Average rainfall days in December - Delphi, IN
  • Average rainfall days in December: 8.6 days

The month with the highest number of rainy days is May (18.1 days).
The month with the least rainy days is January (6 days).

[Resources]

Average snowfall in December
Delphi, IN

Average snowfall in December - Delphi, IN
  • Average snowfall in December: 1.46"

The month with the highest snowfall is February (2.44").
The months with the least snowfall are May, June, July, August and September (0").

[Resources]

Average snowfall days in December
Delphi, IN

Average snowfall days in December - Delphi, IN
  • Average snowfall days in December: 7.2 days

The month with the highest number of snowfall days is January (11.5 days).
The months with the least snowfall days are June, July, August and September (0 days).

[Resources]

Average daylight in December /
Average sunshine in December
Delphi, IN

Average daylight in December / Average sunshine in December - Delphi, IN
  • Average daylight in December: 9h and 2min

The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • Average sunshine in December: 4h and 1min

The months with the most sunshine are June and July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).

[Resources]

Average sunshine days in December
Delphi, IN

Average sunshine days in December - Delphi, IN
  • Average sunshine days in December: 16.8 days

The month with the most sunshine days is November (18.6 days).
The month with the least sunshine days is May (11.2 days).

[Resources]

Average UV index in December
Delphi, IN

Average UV index in December - Delphi, IN
  • Average UV index in December: 1

The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is December (UV index 1).

[Resources]

Average cloud cover in December
Delphi, IN

Average cloud cover in December - Delphi, IN
  • Average cloud cover in December: 57

The month with the most cloud cover is January (Cloud cover 61).
The months with the least cloud cover are June and August (Cloud cover 33).

[Resources]

Average visibility in December
Delphi, IN

Average visibility in December - Delphi, IN
  • Average visibility in December: 6mi

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

[Resources]

Delphi, Indiana, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location