Lehi weather in December

In December, Lehi sees average daytime highs of 31°F and overnight lows near 15°F, with 2.4 in of precipitation across 9.9 wet days and about 9.2 hours of daylight. It is the 11th-warmest and 5th-wettest month of the year here.

Highs ease over the month, from about 34°F in the first days to 29°F by the end. The sky is clear or mostly clear about 30% of the time in December, and the air most often feels dry.

Daylight stretches from about 9 h 18 min at the start of December to 9 h 12 min by month's end. Set against the rest of the year, December is Lehi's 11th-clearest and 10th-windiest month. For the whole year in context, see Lehi's year-round climate.

Daytime high: 31°; 11th warmest
Overnight low: 15°; 1st coldest
Precipitation: 2.4 in; 9.9 wet days
Daylight: 9 h 06 min; 7:50 AM – 4:58 PM
Cloud cover: 60%; 11th clearest
Wind: 4 mph; 10th windiest
Solar energy: 2.23 kWh/m²
Travel score: 0.0; out of 10

Lehi is city in Utah County, Utah, United States.

Density: 847/km²; people per km²
Founded: 1850

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

← November Lehi year-round climate January →Best places to visit in December

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 34°F in the first days to 29°F by the end.

A typical December day in Lehi reaches about 31°F in the afternoon and slips back to 15°F overnight — a 16°F spread between the day's warmth and the night's chill. On most days the high lands between 20°F and 40°F. Set against its neighbours, December runs about 11°F cooler than November and on par with January.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Avg high (°F)	35	34	34	34	33	33	33	32	32	32	31	31	31	31	30	30	30	30	30	29	29	29	29	29	29	29	29	29	29	29	29
Avg low (°F)	17	17	17	17	16	16	16	16	16	16	15	15	15	15	15	15	15	15	15	14	14	14	14	14	14	14	14	14	14	14	15

	Avg high (°F)	Avg low (°F)
1	35	17
2	34	17
3	34	17
4	34	17
5	33	16
6	33	16
7	33	16
8	32	16
9	32	16
10	32	16
11	31	15
12	31	15
13	31	15
14	31	15
15	30	15
16	30	15
17	30	15
18	30	15
19	30	15
20	29	14
21	29	14
22	29	14
23	29	14
24	29	14
25	29	14
26	29	14
27	29	14
28	29	14
29	29	14
30	29	14
31	29	15

How December really feels in Lehi

Once humidity and wind are folded in, December averages 0 days that feel above 90°F and 31 that feel at or below 32°F — the comfort signal a plain temperature reading hides.

Days feeling ≥ 90°F

heat index over the day's high

Days feeling ≤ 32°F

31 feel bitter (≤ 14°F)

The story in December is cold — wind chill drags the overnight "feels like" below the raw low.

Lehi weather by month

How December compares with the rest of the year at a glance. December is the 11th-warmest and 5th-wettest month here — the current month is highlighted below.

Month	High / Low (°F)	Rainfall (inches)	Wet days	Snow days	Daylight (hours)	Travel score
Jan	31° / 16°	2.7	11.3	11.7	9.4	0.0
Feb	35° / 20°	2.3	10.2	10.6	10.4	0.0
Mar	44° / 26°	2.5	11.3	10.4	11.7	0.8
Apr	51° / 31°	2.9	12.4	9.6	13	2.3
May	62° / 39°	2.5	11.6	3.6	14.2	5.2
Jun	75° / 49°	1.3	6.3	0.5	14.8	7.6
Jul	85° / 57°	0.9	4.8	0	14.6	6.3
Aug	83° / 56°	0.9	5.2	0	13.6	6.9
Sep	72° / 47°	1.7	6.4	0.6	12.3	7.6
Oct	58° / 35°	2.1	8.3	3.9	10.9	4.7
Nov	42° / 23°	2.2	9.2	8.5	9.8	0.6
Dec	31° / 15°	2.4	9.9	10.5	9.2	0.0

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 30% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 15% of December, with mostly cloudy or overcast conditions the remaining 55%.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Clearer (%)	48	48	48	48	48	46	47	47	47	46	46	45	45	45	45	44	44	44	44	44	43	43	44	44	44	43	43	43	43	42	42
Cloudier (%)	52	52	52	52	52	54	53	53	53	54	54	55	55	55	55	56	56	56	56	56	57	57	56	56	56	57	57	57	57	58	58

	Clearer (%)	Cloudier (%)
1	48	52
2	48	52
3	48	52
4	48	52
5	48	52
6	46	54
7	47	53
8	47	53
9	47	53
10	46	54
11	46	54
12	45	55
13	45	55
14	45	55
15	45	55
16	44	56
17	44	56
18	44	56
19	44	56
20	44	56
21	43	57
22	43	57
23	44	56
24	44	56
25	44	56
26	43	57
27	43	57
28	43	57
29	43	57
30	42	58
31	42	58

Chance of precipitation in December

Any precipitationSnow

Lehi gets around 2.4 in of rain and snow over 9.9 wet days in December. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 33% and peaks near 33% on the wettest days, and about 11 days bring snow.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Rain chance (%)	33	33	33	33	33	33	33	33	33	33	33	33	33	33	33	33	33	32	32	32	32	32	32	32	32	32	32	32	32	32	33
Snow chance (%)	33	33	33	33	33	33	33	33	33	33	34	34	34	34	35	35	35	35	35	35	35	35	35	35	35	34	34	35	35	35	35

	Rain chance (%)	Snow chance (%)
1	33	33
2	33	33
3	33	33
4	33	33
5	33	33
6	33	33
7	33	33
8	33	33
9	33	33
10	33	33
11	33	34
12	33	34
13	33	34
14	33	34
15	33	35
16	33	35
17	33	35
18	32	35
19	32	35
20	32	35
21	32	35
22	32	35
23	32	35
24	32	35
25	32	35
26	32	34
27	32	34
28	32	35
29	32	35
30	32	35
31	33	35

Humidity in December

DryComfortableHumidMuggyOppressiveMiserable

Most of December feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, December lands in the dry band about 100% of days. It rarely turns muggy — the humid and sticky bands barely register.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Dry (%)	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100

	Dry (%)
1	100
2	100
3	100
4	100
5	100
6	100
7	100
8	100
9	100
10	100
11	100
12	100
13	100
14	100
15	100
16	100
17	100
18	100
19	100
20	100
21	100
22	100
23	100
24	100
25	100
26	100
27	100
28	100
29	100
30	100
31	100

Wind in December

Winds average 4 mph in December.

Across December, daily wind ranges from about 4 mph on the calmest days to 4 mph at its breeziest. It stays fairly steady from day to day.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Wind speed (mph)	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4
Feels	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm

	Wind speed (mph)	Feels
1	4	calm
2	4	calm
3	4	calm
4	4	calm
5	4	calm
6	4	calm
7	4	calm
8	4	calm
9	4	calm
10	4	calm
11	4	calm
12	4	calm
13	4	calm
14	4	calm
15	4	calm
16	4	calm
17	4	calm
18	4	calm
19	4	calm
20	4	calm
21	4	calm
22	4	calm
23	4	calm
24	4	calm
25	4	calm
26	4	calm
27	4	calm
28	4	calm
29	4	calm
30	4	calm
31	4	calm

Sunrise & sunset in December

DaylightNight

Daylight runs from about 9 h 18 min at the start of December to 9 h 12 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 6 minutes over December. Sunrise moves from 7:37 AM to 7:56 AM, and sunset from 4:57 PM to 5:05 PM.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Daylight (h)	9.3	9.3	9.3	9.3	9.3	9.2	9.2	9.2	9.2	9.2	9.2	9.2	9.2	9.1	9.1	9.1	9.1	9.1	9.1	9.1	9.1	9.1	9.1	9.1	9.1	9.1	9.1	9.1	9.1	9.1	9.2
Sunrise (AM)	7:37	7:38	7:39	7:40	7:41	7:42	7:43	7:44	7:44	7:45	7:46	7:47	7:48	7:48	7:49	7:50	7:50	7:51	7:51	7:52	7:52	7:53	7:53	7:54	7:54	7:55	7:55	7:55	7:55	7:56	7:56
Sunset (PM)	4:57	4:57	4:57	4:57	4:56	4:56	4:56	4:56	4:56	4:56	4:57	4:57	4:57	4:57	4:57	4:58	4:58	4:58	4:59	4:59	4:59	5:00	5:00	5:01	5:01	5:02	5:03	5:03	5:04	5:04	5:05

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	9.3	7:37	4:57
2	9.3	7:38	4:57
3	9.3	7:39	4:57
4	9.3	7:40	4:57
5	9.3	7:41	4:56
6	9.2	7:42	4:56
7	9.2	7:43	4:56
8	9.2	7:44	4:56
9	9.2	7:44	4:56
10	9.2	7:45	4:56
11	9.2	7:46	4:57
12	9.2	7:47	4:57
13	9.2	7:48	4:57
14	9.1	7:48	4:57
15	9.1	7:49	4:57
16	9.1	7:50	4:58
17	9.1	7:50	4:58
18	9.1	7:51	4:58
19	9.1	7:51	4:59
20	9.1	7:52	4:59
21	9.1	7:52	4:59
22	9.1	7:53	5:00
23	9.1	7:53	5:00
24	9.1	7:54	5:01
25	9.1	7:54	5:01
26	9.1	7:55	5:02
27	9.1	7:55	5:03
28	9.1	7:55	5:03
29	9.1	7:55	5:04
30	9.1	7:56	5:04
31	9.2	7:56	5:05

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 2.23 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 2.23 kWh/m² to a high of 8.12 kWh/m² in June across the year — December's 2.23 kWh/m² sits near the bottom.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Solar energy (kWh/m²)	2.4	2.3	2.3	2.3	2.3	2.3	2.3	2.3	2.2	2.2	2.2	2.2	2.2	2.2	2.2	2.2	2.2	2.2	2.2	2.2	2.2	2.2	2.2	2.2	2.2	2.2	2.3	2.3	2.3	2.3	2.3
Level	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate

	Solar energy (kWh/m²)	Level
1	2.4	Moderate
2	2.3	Moderate
3	2.3	Moderate
4	2.3	Moderate
5	2.3	Moderate
6	2.3	Moderate
7	2.3	Moderate
8	2.3	Moderate
9	2.2	Moderate
10	2.2	Moderate
11	2.2	Moderate
12	2.2	Moderate
13	2.2	Moderate
14	2.2	Moderate
15	2.2	Moderate
16	2.2	Moderate
17	2.2	Moderate
18	2.2	Moderate
19	2.2	Moderate
20	2.2	Moderate
21	2.2	Moderate
22	2.2	Moderate
23	2.2	Moderate
24	2.2	Moderate
25	2.2	Moderate
26	2.2	Moderate
27	2.3	Moderate
28	2.3	Moderate
29	2.3	Moderate
30	2.3	Moderate
31	2.3	Moderate

Planning a trip in December

Is December a good time to visit Lehi?

Our two travel scores rate December for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

0.0

Sightseeing

10th-best month of the year

0.0

Beach & pool

8th-best month of the year

December is a weaker month for outdoor sightseeing in Lehi.

What to pack for Lehi in December

From December's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In December, Lehi sees daytime highs around 31°F and nights near 15°F. Pack a warm layer and a heavy coat. Worth having: rain gear. About 10 days see rain.

a warm layera heavy coatrain gear

UV index in Lehi in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks around 2. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Lehi peaks around June 23 at about 10 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 20 at about 2 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 9 months of the year.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
UV index (midday)	2	3	5	5	7	10	10	9	7	5	3	2
Level	Moderate	Moderate	Moderate	High	Very high	Very high	Very high	Very high	Very high	Moderate	Moderate	Moderate

	UV index (midday)	Level
Jan	2	Moderate
Feb	3	Moderate
Mar	5	Moderate
Apr	5	High
May	7	Very high
Jun	10	Very high
Jul	10	Very high
Aug	9	Very high
Sep	7	Very high
Oct	5	Moderate
Nov	3	Moderate
Dec	2	Moderate

Air quality in Lehi in December

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where December falls, not just the annual average.

Air quality in Lehi is worst in September — around 22 µg/m³ PM2.5 (moderate), about 2.6× the cleanest month (June, 9 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
PM2.5 (µg/m³)	11	11	12	10	10	9	11	14	22	12	9	9
Level	Good	Good	Moderate	Good	Good	Good	Good	Moderate	Moderate	Good	Good	Good

	PM2.5 (µg/m³)	Level
Jan	11	Good
Feb	11	Good
Mar	12	Moderate
Apr	10	Good
May	10	Good
Jun	9	Good
Jul	11	Good
Aug	14	Moderate
Sep	22	Moderate
Oct	12	Good
Nov	9	Good
Dec	9	Good

Location & terrain

Where is Lehi?

Lehi sits at 40.4°N, 111.9°W, 4,564 ft above sea level, in United States. The nearest listed city is American Fork, 3.1 mi away.

Topography around Lehi

How much the land rises and falls, and what covers it, within 2, 10 and 50 miles of Lehi.

Within 2 miles, the terrain around Lehi has only modest variations in elevation — a maximum elevation change of 302 ft around an average of 4,577 ft above sea level; within 10 miles, very significant variations in elevation — a maximum elevation change of 7,051 ft; within 50 miles, very significant variations in elevation — a maximum elevation change of 7,513 ft.

The land around Lehi is covered by artificial surfaces (47%), grassland (21%) and trees (20%) within 2 miles, grassland (35%) and trees (20%) within 10 miles, and grassland (45%) and trees (29%) within 50 miles.

2 miles

302 ft

artificial surfaces 47%

10 miles

7,051 ft

grassland 35%

50 miles

7,513 ft

grassland 45%

treesshrubsgrasslandcroplandartificial surfacesbare terrainwater

← November Lehi year-round climate January →Best places to visit in December

December weather nearby: American Fork 3.1 mi · Highland 3.7 mi · Saratoga Springs 4.3 mi · Pleasant Grove 6.2 mi · Draper 9.3 mi · Eagle Mountain 9.9 mi · Riverton 9.9 mi · Orem 11 mi

United States travel facts

Power plugs: Type A / B; 120 V · 60 Hz
Prices: ≈ 100% of US; price level, 2025
GDP per capita: $90,027; 2025
Happiness: 6.8 / 10; World Happiness, 2025
Safe drinking water: 98%; of population, 2024
Homicide rate: 5.8; per 100k, 2023
Road deaths: 12.7; per 100k/yr, 2019
Income group: High; World Bank
Religion

Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.

Data sources

Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Lehi (40.3916°, -111.8508°, elevation 4,564 ft), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).

	Avg high (°F)	Avg low (°F)
1	35	17
2	34	17
3	34	17
4	34	17
5	33	16
6	33	16
7	33	16
8	32	16
9	32	16
10	32	16
11	31	15
12	31	15
13	31	15
14	31	15
15	30	15
16	30	15
17	30	15
18	30	15
19	30	15
20	29	14
21	29	14
22	29	14
23	29	14
24	29	14
25	29	14
26	29	14
27	29	14
28	29	14
29	29	14
30	29	14
31	29	15

	Clearer (%)	Cloudier (%)
1	48	52
2	48	52
3	48	52
4	48	52
5	48	52
6	46	54
7	47	53
8	47	53
9	47	53
10	46	54
11	46	54
12	45	55
13	45	55
14	45	55
15	45	55
16	44	56
17	44	56
18	44	56
19	44	56
20	44	56
21	43	57
22	43	57
23	44	56
24	44	56
25	44	56
26	43	57
27	43	57
28	43	57
29	43	57
30	42	58
31	42	58

	Rain chance (%)	Snow chance (%)
1	33	33
2	33	33
3	33	33
4	33	33
5	33	33
6	33	33
7	33	33
8	33	33
9	33	33
10	33	33
11	33	34
12	33	34
13	33	34
14	33	34
15	33	35
16	33	35
17	33	35
18	32	35
19	32	35
20	32	35
21	32	35
22	32	35
23	32	35
24	32	35
25	32	35
26	32	34
27	32	34
28	32	35
29	32	35
30	32	35
31	33	35

	Dry (%)
1	100
2	100
3	100
4	100
5	100
6	100
7	100
8	100
9	100
10	100
11	100
12	100
13	100
14	100
15	100
16	100
17	100
18	100
19	100
20	100
21	100
22	100
23	100
24	100
25	100
26	100
27	100
28	100
29	100
30	100
31	100

	Avg high (°F)	Avg low (°F)
1	35	17
2	34	17
3	34	17
4	34	17
5	33	16
6	33	16
7	33	16
8	32	16
9	32	16
10	32	16
11	31	15
12	31	15
13	31	15
14	31	15
15	30	15
16	30	15
17	30	15
18	30	15
19	30	15
20	29	14
21	29	14
22	29	14
23	29	14
24	29	14
25	29	14
26	29	14
27	29	14
28	29	14
29	29	14
30	29	14
31	29	15

	Clearer (%)	Cloudier (%)
1	48	52
2	48	52
3	48	52
4	48	52
5	48	52
6	46	54
7	47	53
8	47	53
9	47	53
10	46	54
11	46	54
12	45	55
13	45	55
14	45	55
15	45	55
16	44	56
17	44	56
18	44	56
19	44	56
20	44	56
21	43	57
22	43	57
23	44	56
24	44	56
25	44	56
26	43	57
27	43	57
28	43	57
29	43	57
30	42	58
31	42	58

	Rain chance (%)	Snow chance (%)
1	33	33
2	33	33
3	33	33
4	33	33
5	33	33
6	33	33
7	33	33
8	33	33
9	33	33
10	33	33
11	33	34
12	33	34
13	33	34
14	33	34
15	33	35
16	33	35
17	33	35
18	32	35
19	32	35
20	32	35
21	32	35
22	32	35
23	32	35
24	32	35
25	32	35
26	32	34
27	32	34
28	32	35
29	32	35
30	32	35
31	33	35

	Dry (%)
1	100
2	100
3	100
4	100
5	100
6	100
7	100
8	100
9	100
10	100
11	100
12	100
13	100
14	100
15	100
16	100
17	100
18	100
19	100
20	100
21	100
22	100
23	100
24	100
25	100
26	100
27	100
28	100
29	100
30	100
31	100

	Avg high (°F)	Avg low (°F)
1	35	17
2	34	17
3	34	17
4	34	17
5	33	16
6	33	16
7	33	16
8	32	16
9	32	16
10	32	16
11	31	15
12	31	15
13	31	15
14	31	15
15	30	15
16	30	15
17	30	15
18	30	15
19	30	15
20	29	14
21	29	14
22	29	14
23	29	14
24	29	14
25	29	14
26	29	14
27	29	14
28	29	14
29	29	14
30	29	14
31	29	15

	Clearer (%)	Cloudier (%)
1	48	52
2	48	52
3	48	52
4	48	52
5	48	52
6	46	54
7	47	53
8	47	53
9	47	53
10	46	54
11	46	54
12	45	55
13	45	55
14	45	55
15	45	55
16	44	56
17	44	56
18	44	56
19	44	56
20	44	56
21	43	57
22	43	57
23	44	56
24	44	56
25	44	56
26	43	57
27	43	57
28	43	57
29	43	57
30	42	58
31	42	58

	Rain chance (%)	Snow chance (%)
1	33	33
2	33	33
3	33	33
4	33	33
5	33	33
6	33	33
7	33	33
8	33	33
9	33	33
10	33	33
11	33	34
12	33	34
13	33	34
14	33	34
15	33	35
16	33	35
17	33	35
18	32	35
19	32	35
20	32	35
21	32	35
22	32	35
23	32	35
24	32	35
25	32	35
26	32	34
27	32	34
28	32	35
29	32	35
30	32	35
31	33	35

	Dry (%)
1	100
2	100
3	100
4	100
5	100
6	100
7	100
8	100
9	100
10	100
11	100
12	100
13	100
14	100
15	100
16	100
17	100
18	100
19	100
20	100
21	100
22	100
23	100
24	100
25	100
26	100
27	100
28	100
29	100
30	100
31	100