Value Anomaly Rank Mean

County Average Temperature

October - December 1999

0°F10°F20°F30°F40°F50°F60°F70°F80°F90°F

Utah (Hover over a County)

Temp Average Temperature : --

Anomaly: --

Rank: -- Coldest

Mean: --

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*Signifies a tie

**Insufficient variability in the data record renders rank insignificant

October - December 1999 Utah County Average Temperature

County	Value	Anomaly	Rank 130 Years	1901-2000 Mean
Beaver County	42.0°F	4.0°F	124	38.0°F
Box Elder County	40.3°F	3.9°F	125	36.4°F
Cache County	36.9°F	3.9°F	123	33.0°F
Carbon County	38.2°F	4.9°F	128	33.3°F
Daggett County	35.2°F	4.4°F	126	30.8°F
Davis County	42.4°F	4.4°F	128	37.9°F
Duchesne County	35.1°F	4.4°F	125	30.7°F
Emery County	41.9°F	3.8°F	124	38.1°F
Garfield County	41.1°F	3.3°F	119	37.8°F
Grand County	41.8°F	3.7°F	120	38.1°F
Iron County	42.3°F	4.0°F	124	38.3°F
Juab County	42.0°F	3.5°F	123	38.5°F
Kane County	44.4°F	2.9°F	114	41.5°F
Millard County	42.5°F	3.3°F	120	39.1°F
Morgan County	37.7°F	4.3°F	126	33.4°F
Piute County	37.6°F	3.9°F	124	33.8°F
Rich County	33.7°F	3.6°F	119	30.1°F
Salt Lake County	41.9°F	4.1°F	126	37.8°F
San Juan County	43.9°F	2.9°F	115	41.0°F
Sanpete County	37.5°F	3.5°F	121	34.0°F
Sevier County	38.8°F	3.9°F	125	34.9°F
Summit County	33.3°F	4.0°F	125	29.3°F
Tooele County	41.9°F	3.3°F	122	38.6°F
Uintah County	38.1°F	4.7°F	128	33.3°F
Utah County	39.8°F	3.8°F	124	36.0°F
Wasatch County	35.2°F	4.0°F	125	31.1°F
Washington County	49.7°F	4.0°F	127	45.7°F
Wayne County	43.2°F	4.3°F	128	38.9°F
Weber County	39.4°F	4.5°F	126	34.9°F

Citing This Page

• NOAA National Centers for Environmental information, Climate at a Glance: County Mapping, published July 2025, retrieved on August 2, 2025 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/county/mapping