World Resorts USA Idaho Falls Weather

Idaho Falls weather in December

Weather in Idaho Falls: December

Average day temperature: 29.3°F
Average night temperature: 21.7°F
Number of sunny days: 7 days
Day length: 8.9 - 9.2 hours
Number of rainy days: 0 days
Precipitation totals: 0.6 in.

Air temperature in December, °F

Show year:
2024
2023
2022
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
0
6
12
18
24
30
36
42
48
Day temperature   
Night temperature

The highest day temperature during December of 2024 was 39°F. At the same time the lowest night temperature was 14°F. Daily and nightly averages during December were 32.7°F and 24.2°F.

Sunny, partly cloudy and cloudy days
Sunny days
Partly cloudy days
Cloudy days
23%
19%
58%

Mostly all days in December are cloudy but sunny and partly cloudy days are also possible.

Precipitation total in December, in.

jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0.0
0.2
0.4
0.5
0.7
0.9
1.1
1.2
1.4
1.0
1.0

Precipitation total value in Idaho Falls in December is 0.6 in. Other months of the year show relatively similar values.

Wind speed in December, mph
jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0.0
1.6
3.2
4.8
6.4
8.0
9.5
11.1
12.7
7.1
7.7
7.5
7.4
7.4
8.8
9.0
9.3
7.3
6.6
5.1
6.3
7.1
7.7
7.5
7.4
7.4
8.8
9.0
9.3
7.3
6.6
5.1

The average wind speed value in December is 6.3 mph It makes December one of the least windy months of the year.

Average sunny hours
jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0.0
2.2
4.4
6.6
8.8
11.0
13.2
15.4
17.6
4.4
7.4
10.0
10.7
12.9
12.1
9.1
8.3
6.0
4.0
3.7
3.2
4.4
7.4
10.0
10.7
12.9
12.1
9.1
8.3
6.0
4.0
3.7

This chart shows average number of hours during the day when sunlight can reach the ground. It depends on day length and cloudiness during the day. The average number of sunny hours in December is: 3.2.

Best time for vacation in Idaho Falls

Sunniest months:
July 27 days
June 22 days
August 22 days
Warmest months:
July 88.3 °F
August 84.1 °F
September 75.6 °F
Coldest months:
January 25.0 °F
February 27.9 °F
December 29.3 °F
Rainiest months:
March 2 days
September 1 day
October 1 day
Windiest months:
April 9.3 mph
May 9.0 mph
June 8.8 mph

Idaho Falls on a weather map

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24 Hours Forecast
Idaho Falls
Local time: 12:17
April 11, friday
1500
70°F
NE
13 mph
1800
66°F
E
12 mph
2100
57°F
NE
4 mph
April 12, saturday
0000
52°F
NW
4 mph
0300
48°F
N
4 mph
0600
43°F
NE
4 mph
0900
50°F
NE
13 mph
1200
54°F
NE
24 mph
Units of measurement: °C / °F