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Mankato, Minnesota climate

Dfb Warm-summer humid continental

Mankato has a strongly seasonal cold-temperate climate (Warm-summer humid continental, Köppen Dfb). The hottest month is July with an average daily high near 82°F, while the coldest is January averaging around 5°F at night. Precipitation totals about 35 inches a year and is strongly seasonal — June alone averages 5.6 inches while January barely receives 0.97 inches. Winters bring significant snowfall (43 inches of snow per year on average).

☀️ Summers

Warm

Highs near 82°F in July.

About 6 days a year above 90 °F

❄️ Winters

Bitterly cold

Lows near 5°F in January.

About 111 freezing nights a year

🌧️ Rain & snow

Moderate rainfall

About 35 in of rain a year, plus 43 in of snow.

Snow falls through the winter months

⛅ Sky & trend

Partly cloudy

A roughly even mix of sun and cloud.

+0.2 °F 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

Mankato climate normals (1991–2020)

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Avg high (°F)	23	28	40	56	68	78	82	80	73	59	42	29
Avg temp (°F)	14	18	30	44	57	68	71	69	61	47	33	21
Avg low (°F)	5	8	20	33	45	57	61	58	50	36	24	13
Precipitation (in)	1.0	1.0	1.9	3.1	4.4	5.6	4.6	4.7	3.7	2.6	1.7	1.2
Snowfall (in)	9.4	10.6	6.4	1.6	0.2	—	—	—	—	0.1	4.9	10.1

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Avg high (°F)	23	28	40	56	68	78
Avg temp (°F)	14	18	30	44	57	68
Avg low (°F)	5	8	20	33	45	57
Precipitation (in)	1.0	1.0	1.9	3.1	4.4	5.6
Snowfall (in)	9.4	10.6	6.4	1.6	0.2	—

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Avg high (°F)	82	80	73	59	42	29
Avg temp (°F)	71	69	61	47	33	21
Avg low (°F)	61	58	50	36	24	13
Precipitation (in)	4.6	4.7	3.7	2.6	1.7	1.2
Snowfall (in)	—	—	—	0.1	4.9	10.1

How often — frequency of weather events

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Days with measurable rain (days)	7	5	8	10	12	12	10	10	8	8	6	7
Days with high ≥ 90°F (days)	—	—	—	0.1	0.5	1	2	1	0.3	0.0	—	—
Days with low ≤ 32°F (days)	21	19	18	9	2	—	0.0	—	1	7	14	19
Days with snowfall ≥ 1 in (days)	4	3	2	0.8	0.0	—	—	—	—	0.0	1	3

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Days with measurable rain (days)	7	5	8	10	12	12
Days with high ≥ 90°F (days)	—	—	—	0.1	0.5	1
Days with low ≤ 32°F (days)	21	19	18	9	2	—
Days with snowfall ≥ 1 in (days)	4	3	2	0.8	0.0	—

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Days with measurable rain (days)	10	10	8	8	6	7
Days with high ≥ 90°F (days)	2	1	0.3	0.0	—	—
Days with low ≤ 32°F (days)	0.0	—	1	7	14	19
Days with snowfall ≥ 1 in (days)	—	—	—	0.0	1	3

Sky & atmosphere

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Cloud cover (%)	62	61	67	64	65	61	49	52	52	62	64	66
Clear days (≤ 30% cloud)	5	5	5	5	5	6	8	9	9	7	5	5
Partly cloudy days (30–70%)	12	11	10	10	10	10	15	12	10	8	10	10
Cloudy days (≥ 70%)	13	12	17	15	16	14	8	10	11	16	15	16
Relative humidity (%)	89	86	78	72	72	75	72	71	70	74	80	88
Wind speed (mph)	8.6	8.7	8.5	8.4	7.4	6.4	5.8	5.6	6.7	7.3	7.6	7.8

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Cloud cover (%)	62	61	67	64	65	61
Clear days (≤ 30% cloud)	5	5	5	5	5	6
Partly cloudy days (30–70%)	12	11	10	10	10	10
Cloudy days (≥ 70%)	13	12	17	15	16	14
Relative humidity (%)	89	86	78	72	72	75
Wind speed (mph)	8.6	8.7	8.5	8.4	7.4	6.4

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Cloud cover (%)	49	52	52	62	64	66
Clear days (≤ 30% cloud)	8	9	9	7	5	5
Partly cloudy days (30–70%)	15	12	10	8	10	10
Cloudy days (≥ 70%)	8	10	11	16	15	16
Relative humidity (%)	72	71	70	74	80	88
Wind speed (mph)	5.8	5.6	6.7	7.3	7.6	7.8

Methodology & sources

Temperature & precipitation — the official 1991–2020 climate normals from NOAA's U.S. Climate Normals, measured at Faribault (NOAA GHCN station USC00212721), about 62 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 →