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Norfolk, Virginia climate

Cfa Humid subtropical

Norfolk has a seasonal mild-temperate climate (Humid subtropical, Köppen Cfa). The hottest month is July with an average daily high near 30°C, while the coldest is January averaging around −1°C at night. Precipitation is fairly even year-round, totalling about 1316 mm. Snow is occasional (15 cm of snow per year on average).

☀️ Summers

Warm

Highs near 30°C in July.

About 27 days a year above 32 °C

❄️ Winters

Cold

Lows near −1°C in January.

About 56 freezing nights a year

🌧️ Rain & snow

Wet

About 1316 mm of rain a year, plus 15 cm of snow.

Snow falls through the winter months

⛅ Sky & trend

Partly cloudy

A roughly even mix of sun and cloud.

+0.1 °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

Norfolk climate normals (1991–2020)

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Avg high (°C)	10	11	15	21	25	29	30	30	26	21	16	12
Avg temp (°C)	5	6	10	15	19	23	26	25	22	16	10	7
Avg low (°C)	−1	1	4	9	14	18	21	20	17	11	5	2
Precipitation (mm)	93	75	103	92	100	119	145	147	147	108	93	94
Snowfall (cm)	8	4	1	—	—	—	—	—	—	—	—	2

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Avg high (°C)	10	11	15	21	25	29
Avg temp (°C)	5	6	10	15	19	23
Avg low (°C)	−1	1	4	9	14	18
Precipitation (mm)	93	75	103	92	100	119
Snowfall (cm)	8	4	1	—	—	—

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Avg high (°C)	30	30	26	21	16	12
Avg temp (°C)	26	25	22	16	10	7
Avg low (°C)	21	20	17	11	5	2
Precipitation (mm)	145	147	147	108	93	94
Snowfall (cm)	—	—	—	—	—	2

How often — frequency of weather events

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Days with measurable rain (days)	11	9	11	10	11	11	12	11	10	8	9	10
Days with high ≥ 32°C (days)	—	—	—	0.2	0.9	5	12	7	2	0.3	—	—
Days with low ≤ 0°C (days)	17	14	7	0.4	—	—	—	—	—	—	5	13
Days with snowfall ≥ 2.5 cm (days)	0.9	0.5	0.1	—	—	—	—	—	—	—	—	0.2

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Days with measurable rain (days)	11	9	11	10	11	11
Days with high ≥ 32°C (days)	—	—	—	0.2	0.9	5
Days with low ≤ 0°C (days)	17	14	7	0.4	—	—
Days with snowfall ≥ 2.5 cm (days)	0.9	0.5	0.1	—	—	—

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Days with measurable rain (days)	12	11	10	8	9	10
Days with high ≥ 32°C (days)	12	7	2	0.3	—	—
Days with low ≤ 0°C (days)	—	—	—	—	5	13
Days with snowfall ≥ 2.5 cm (days)	—	—	—	—	—	0.2

Sky & atmosphere

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Cloud cover (%)	60	60	60	56	57	57	55	55	55	49	52	58
Clear days (≤ 30% cloud)	7	6	7	8	8	6	7	8	8	12	10	8
Partly cloudy days (30–70%)	10	10	10	10	11	12	13	13	11	9	9	10
Cloudy days (≥ 70%)	14	12	14	12	12	12	11	11	11	10	11	13
Relative humidity (%)	83	82	80	78	76	73	72	74	77	78	79	83
Wind speed (km/h)	9.1	9.6	10.1	10.2	8.8	7.7	7.2	6.8	7.7	7.7	8.1	8.2

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Cloud cover (%)	60	60	60	56	57	57
Clear days (≤ 30% cloud)	7	6	7	8	8	6
Partly cloudy days (30–70%)	10	10	10	10	11	12
Cloudy days (≥ 70%)	14	12	14	12	12	12
Relative humidity (%)	83	82	80	78	76	73
Wind speed (km/h)	9.1	9.6	10.1	10.2	8.8	7.7

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Cloud cover (%)	55	55	55	49	52	58
Clear days (≤ 30% cloud)	7	8	8	12	10	8
Partly cloudy days (30–70%)	13	13	11	9	9	10
Cloudy days (≥ 70%)	11	11	11	10	11	13
Relative humidity (%)	72	74	77	78	79	83
Wind speed (km/h)	7.2	6.8	7.7	7.7	8.1	8.2

Methodology & sources

Temperature & precipitation — the official 1991–2020 climate normals from NOAA's U.S. Climate Normals, measured at Suffolk Lake Kilby (NOAA GHCN station USC00448192), about 31 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 →