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Germantown, Tennessee climate

Cfa Humid subtropical

Germantown has a seasonal mild-temperate climate (Humid subtropical, Köppen Cfa). The hottest month is July with an average daily high near 92°F, while the coldest is January averaging around 33°F at night. Precipitation is fairly even year-round, totalling about 55 inches. Snow is occasional (3 inches of snow per year on average).

☀️ Summers

Hot

Highs near 92°F in July.

About 72 days a year above 90 °F

❄️ Winters

Chilly

Lows near 33°F in January.

About 44 freezing nights a year

🌧️ Rain

Wet

About 55 in of rain a year.

Wettest in April

⛅ Sky & trend

Partly cloudy

A roughly even mix of sun and cloud.

+0.7 °F vs 50 years ago

Temperature & precipitation

Daily high–low temperature range with the monthly average, plus monthly precipitation · 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

Germantown climate normals (1991–2020)

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Avg high (°F)	51	56	64	73	82	89	92	92	86	75	63	53
Avg temp (°F)	42	46	54	63	72	80	83	82	76	65	53	45
Avg low (°F)	33	37	44	53	62	70	74	73	66	54	43	36
Precipitation (in)	4.1	4.6	5.7	5.9	5.3	4.0	4.8	3.4	3.0	4.0	4.7	5.5
Snowfall (in)	0.9	1.0	0.5	—	—	—	—	—	—	—	0.1	0.2

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Avg high (°F)	51	56	64	73	82	89
Avg temp (°F)	42	46	54	63	72	80
Avg low (°F)	33	37	44	53	62	70
Precipitation (in)	4.1	4.6	5.7	5.9	5.3	4.0
Snowfall (in)	0.9	1.0	0.5	—	—	—

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Avg high (°F)	92	92	86	75	63	53
Avg temp (°F)	83	82	76	65	53	45
Avg low (°F)	74	73	66	54	43	36
Precipitation (in)	4.8	3.4	3.0	4.0	4.7	5.5
Snowfall (in)	—	—	—	—	0.1	0.2

How often — frequency of weather events

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Days with measurable rain (days)	10	10	12	10	11	9	10	8	7	8	9	10
Days with high ≥ 90°F (days)	—	—	—	0.1	3	16	22	20	10	0.9	—	—
Days with low ≤ 32°F (days)	15	10	3	0.2	—	—	—	—	—	0.1	4	12
Days with snowfall ≥ 1 in (days)	0.3	0.3	0.1	—	—	—	—	—	—	—	—	0.0

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Days with measurable rain (days)	10	10	12	10	11	9
Days with high ≥ 90°F (days)	—	—	—	0.1	3	16
Days with low ≤ 32°F (days)	15	10	3	0.2	—	—
Days with snowfall ≥ 1 in (days)	0.3	0.3	0.1	—	—	—

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Days with measurable rain (days)	10	8	7	8	9	10
Days with high ≥ 90°F (days)	22	20	10	0.9	—	—
Days with low ≤ 32°F (days)	—	—	—	0.1	4	12
Days with snowfall ≥ 1 in (days)	—	—	—	—	—	0.0

Sky & atmosphere

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Cloud cover (%)	62	66	62	58	59	53	50	46	44	46	54	61
Clear days (≤ 30% cloud)	6	5	7	8	7	9	9	11	13	13	9	7
Partly cloudy days (30–70%)	9	8	9	9	10	10	12	12	8	9	8	8
Cloudy days (≥ 70%)	15	16	15	13	13	11	10	8	9	10	12	16
Relative humidity (%)	84	83	81	78	78	73	69	64	63	67	75	83
Wind speed (mph)	6.7	7.0	7.0	6.9	5.7	4.6	4.1	4.0	4.7	5.3	5.9	6.2

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Cloud cover (%)	62	66	62	58	59	53
Clear days (≤ 30% cloud)	6	5	7	8	7	9
Partly cloudy days (30–70%)	9	8	9	9	10	10
Cloudy days (≥ 70%)	15	16	15	13	13	11
Relative humidity (%)	84	83	81	78	78	73
Wind speed (mph)	6.7	7.0	7.0	6.9	5.7	4.6

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Cloud cover (%)	50	46	44	46	54	61
Clear days (≤ 30% cloud)	9	11	13	13	9	7
Partly cloudy days (30–70%)	12	12	8	9	8	8
Cloudy days (≥ 70%)	10	8	9	10	12	16
Relative humidity (%)	69	64	63	67	75	83
Wind speed (mph)	4.1	4.0	4.7	5.3	5.9	6.2

Methodology & sources

Temperature & precipitation — the official 1991–2020 climate normals from NOAA's U.S. Climate Normals, measured at Memphis Intl AP (NOAA GHCN station USW00013893), about 16 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 →