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West Valley City, Utah climate

Csa Hot-summer Mediterranean

West Valley City has a strongly seasonal cool-temperate climate (Hot-summer Mediterranean, Köppen Csa). The hottest month is July with an average daily high near 34°C, while the coldest is January averaging around −4°C at night. Precipitation totals about 394 mm a year and is strongly seasonal — April alone averages 55 mm while July barely receives 12 mm. Winters bring significant snowfall (132 cm of snow per year on average).

☀️ Summers

Hot

Highs near 34°C in July.

About 62 days a year above 32 °C

❄️ Winters

Cold

Lows near −4°C in January.

About 112 freezing nights a year

🌧️ Rain & snow

Fairly dry

About 394 mm of rain a year, plus 132 cm of snow.

Snow falls through the winter months

⛅ Sky & trend

Partly cloudy

A roughly even mix of sun and cloud.

+1.2 °C vs 50 years ago

Temperature & precipitation

Daily high–low temperature range with the monthly average, plus monthly precipitation split into rain and snow · 1991–2020 normals · hover a month for the exact figures

Clear vs cloudy days

Share of days each month that are clear, partly cloudy or cloudy · 1991–2020 · hover a month for the day counts

West Valley City climate normals (1991–2020)

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Avg high (°C)	4	7	13	17	23	29	34	33	27	19	10	4
Avg temp (°C)	0	3	8	11	16	22	27	26	20	13	5	0
Avg low (°C)	−4	−2	2	5	10	15	20	19	14	6	0	−4
Precipitation (mm)	36	33	44	55	46	24	12	15	27	32	34	36
Snowfall (cm)	32	27	15	7	0	—	—	—	—	1	18	31

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Avg high (°C)	4	7	13	17	23	29
Avg temp (°C)	0	3	8	11	16	22
Avg low (°C)	−4	−2	2	5	10	15
Precipitation (mm)	36	33	44	55	46	24
Snowfall (cm)	32	27	15	7	0	—

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Avg high (°C)	34	33	27	19	10	4
Avg temp (°C)	27	26	20	13	5	0
Avg low (°C)	20	19	14	6	0	−4
Precipitation (mm)	12	15	27	32	34	36
Snowfall (cm)	—	—	—	1	18	31

How often — frequency of weather events

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Days with measurable rain (days)	10	9	9	10	9	5	4	5	5	7	8	10
Days with high ≥ 32°C (days)	—	—	—	—	1	10	24	21	5	—	—	—
Days with low ≤ 0°C (days)	27	21	12	4	0.2	—	—	—	—	3	17	27
Days with snowfall ≥ 2.5 cm (days)	4	3	2	1	0.0	—	—	—	—	0.3	2	4

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Days with measurable rain (days)	10	9	9	10	9	5
Days with high ≥ 32°C (days)	—	—	—	—	1	10
Days with low ≤ 0°C (days)	27	21	12	4	0.2	—
Days with snowfall ≥ 2.5 cm (days)	4	3	2	1	0.0	—

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Days with measurable rain (days)	4	5	5	7	8	10
Days with high ≥ 32°C (days)	24	21	5	—	—	—
Days with low ≤ 0°C (days)	—	—	—	3	17	27
Days with snowfall ≥ 2.5 cm (days)	—	—	—	0.3	2	4

Sky & atmosphere

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Cloud cover (%)	59	62	63	63	59	43	42	43	39	46	55	60
Clear days (≤ 30% cloud)	7	5	5	5	7	13	13	12	14	12	8	6
Partly cloudy days (30–70%)	12	11	12	11	11	10	11	13	9	9	9	12
Cloudy days (≥ 70%)	13	13	14	14	13	7	7	7	7	10	13	13
Relative humidity (%)	84	78	67	62	56	46	40	39	43	53	67	80
Wind speed (m/s)	1.3	1.6	1.6	1.5	1.3	1.3	1.2	1.2	1.2	1.3	1.2	1.2

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Cloud cover (%)	59	62	63	63	59	43
Clear days (≤ 30% cloud)	7	5	5	5	7	13
Partly cloudy days (30–70%)	12	11	12	11	11	10
Cloudy days (≥ 70%)	13	13	14	14	13	7
Relative humidity (%)	84	78	67	62	56	46
Wind speed (m/s)	1.3	1.6	1.6	1.5	1.3	1.3

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Cloud cover (%)	42	43	39	46	55	60
Clear days (≤ 30% cloud)	13	12	14	12	8	6
Partly cloudy days (30–70%)	11	13	9	9	9	12
Cloudy days (≥ 70%)	7	7	7	10	13	13
Relative humidity (%)	40	39	43	53	67	80
Wind speed (m/s)	1.2	1.2	1.2	1.3	1.2	1.2

30-year delta table (1991–2020 minus 1981–2010, °F)

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Δ Max temp	+1.2	+1.5	+1.6	+0.3	+0.7	+1.1	+1.4	+1.2	+1.4	+0.8	+1.3	+1.0
Δ Avg temp	+1.9	+2.4	+2.2	+1.2	+1.7	+1.9	+2.4	+2.1	+2.3	+1.6	+1.7	+1.9
Δ Min temp	+2.6	+3.4	+2.7	+2.3	+2.6	+2.7	+3.5	+3.2	+3.3	+2.3	+2.2	+2.7

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Δ Max temp	+1.2	+1.5	+1.6	+0.3	+0.7	+1.1
Δ Avg temp	+1.9	+2.4	+2.2	+1.2	+1.7	+1.9
Δ Min temp	+2.6	+3.4	+2.7	+2.3	+2.6	+2.7

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Δ Max temp	+1.4	+1.2	+1.4	+0.8	+1.3	+1.0
Δ Avg temp	+2.4	+2.1	+2.3	+1.6	+1.7	+1.9
Δ Min temp	+3.5	+3.2	+3.3	+2.3	+2.2	+2.7

Methodology & sources

Temperature & precipitation — the official 1991–2020 climate normals from NOAA's U.S. Climate Normals, measured at Salt Lake City Intl AP (NOAA GHCN station USW00024127), about 9 km from the city centre.

Cloud, humidity, wind & sunshine — modelled estimates from NASA POWER, NASA's satellite-and-reanalysis climatology. This is the standard global source for atmospheric variables, which are not measured at most weather stations.

How we build these numbers →