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Wenatchee, Washington climate

BSk Cold semi-arid

Wenatchee has a seasonal cool-temperate climate (Cold semi-arid, Köppen BSk). The hottest month is July with an average daily high near 32°C, while the coldest is January averaging around −4°C at night. Precipitation totals about 229 mm a year and is strongly seasonal — December alone averages 40 mm while August barely receives 5 mm. Light snow accumulates each winter (42 cm of snow per year on average).

☀️ Summers

Hot

Highs near 32°C in July.

About 36 days a year above 32 °C

❄️ Winters

Cold

Lows near −4°C in January.

About 103 freezing nights a year

🌧️ Rain & snow

Very dry

About 229 mm of rain a year, plus 42 cm of snow.

Snow falls through the winter months

⛅ Sky & trend

Often cloudy

Cloudy skies much of the year.

+0.2 °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

Wenatchee climate normals (1991–2020)

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Avg high (°C)	2	7	12	18	23	26	32	31	26	17	8	2
Avg temp (°C)	−1	2	7	11	16	20	24	24	19	11	4	0
Avg low (°C)	−4	−2	1	5	10	13	17	16	11	5	0	−3
Precipitation (mm)	34	23	19	15	19	15	6	5	6	18	29	40
Snowfall (cm)	14	8	1	—	—	—	—	—	—	—	4	15

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Avg high (°C)	2	7	12	18	23	26
Avg temp (°C)	−1	2	7	11	16	20
Avg low (°C)	−4	−2	1	5	10	13
Precipitation (mm)	34	23	19	15	19	15
Snowfall (cm)	14	8	1	—	—	—

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Avg high (°C)	32	31	26	17	8	2
Avg temp (°C)	24	24	19	11	4	0
Avg low (°C)	17	16	11	5	0	−3
Precipitation (mm)	6	5	6	18	29	40
Snowfall (cm)	—	—	—	—	4	15

How often — frequency of weather events

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Days with measurable rain (days)	9	7	6	5	5	4	2	2	2	6	8	10
Days with high ≥ 32°C (days)	—	—	—	—	1	4	16	13	2	—	—	—
Days with low ≤ 0°C (days)	26	22	12	2	0.0	—	—	—	—	2	14	26
Days with snowfall ≥ 2.5 cm (days)	2	0.9	0.2	—	—	—	—	—	—	—	0.6	3

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Days with measurable rain (days)	9	7	6	5	5	4
Days with high ≥ 32°C (days)	—	—	—	—	1	4
Days with low ≤ 0°C (days)	26	22	12	2	0.0	—
Days with snowfall ≥ 2.5 cm (days)	2	0.9	0.2	—	—	—

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Days with measurable rain (days)	2	2	2	6	8	10
Days with high ≥ 32°C (days)	16	13	2	—	—	—
Days with low ≤ 0°C (days)	—	—	—	2	14	26
Days with snowfall ≥ 2.5 cm (days)	—	—	—	—	0.6	3

Sky & atmosphere

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Cloud cover (%)	72	68	71	70	67	62	42	43	48	63	72	72
Clear days (≤ 30% cloud)	3	4	3	3	4	4	13	13	11	6	3	2
Partly cloudy days (30–70%)	8	8	9	10	10	12	11	12	9	9	8	9
Cloudy days (≥ 70%)	20	17	19	18	17	13	7	7	10	16	19	19
Relative humidity (%)	92	84	74	65	59	56	51	51	56	68	83	90
Wind speed (km/h)	4.8	5.5	6.0	6.3	6.2	6.6	6.3	5.9	5.4	5.2	5.0	4.9

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Cloud cover (%)	72	68	71	70	67	62
Clear days (≤ 30% cloud)	3	4	3	3	4	4
Partly cloudy days (30–70%)	8	8	9	10	10	12
Cloudy days (≥ 70%)	20	17	19	18	17	13
Relative humidity (%)	92	84	74	65	59	56
Wind speed (km/h)	4.8	5.5	6.0	6.3	6.2	6.6

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Cloud cover (%)	42	43	48	63	72	72
Clear days (≤ 30% cloud)	13	13	11	6	3	2
Partly cloudy days (30–70%)	11	12	9	9	8	9
Cloudy days (≥ 70%)	7	7	10	16	19	19
Relative humidity (%)	51	51	56	68	83	90
Wind speed (km/h)	6.3	5.9	5.4	5.2	5.0	4.9

Methodology & sources

Temperature & precipitation — the official 1991–2020 climate normals from NOAA's U.S. Climate Normals, measured at Wenatchee (NOAA GHCN station USC00459074), inside the city.

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 →