Annual mean 10°C · wettest around May · prevailing wind W
Warmest
28.2 °C
Coldest
-5.4 °C
Wettest
39%
Windiest
7.1 m/s
Prevailing
W
5.6 m/s average
When this place is good five ratings · thirty-six ten-day sections · click a cell to read it
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Every reading
bars actual · line feels-like, °Cchance of rain, %wind speed, m/ssky covered, %
The average temperature in Yankton over the whole year is 10°C. July is the hottest month, with highs of about 28°C; January is the coldest, with lows of about -9°C. The rainy (wet) season in Yankton runs from March to August, peaking in May with a 36% chance of rain on a given day. The dry season is September to February; February is the driest month, at 15%. Winds in Yankton are highest in April, averaging 5.4 m/s (19 km/h), and lightest in July, at 3.3 m/s (12 km/h). The prevailing wind is from the W. The clearest skies in Yankton come in July, when the sky is typically 19% covered; January is the cloudiest month, at 41%.
Month by month Yankton climate by month: average temperatures year round · click a month to read it
Month
High
Low
Feels like
Chance of rain
Cloud
Wind
Being outside
Sun
Walking
January
-4°C
-9°C
-10°C
19%
41%
4.6 m/s
0
0
1
February
-2°C
-8°C
-9°C
15%
33%
4.5 m/s
0
0
8
March
7°C
-1°C
0°C
33%
37%
5.0 m/s
5
0
22
April
13°C
4°C
6°C
33%
36%
5.4 m/s
17
1
45
May
20°C
12°C
16°C
36%
35%
4.2 m/s
51
12
64
June
27°C
19°C
25°C
34%
20%
4.0 m/s
54
50
31
July
28°C
20°C
28°C
34%
19%
3.3 m/s
40
62
14
August
26°C
18°C
26°C
30%
24%
3.3 m/s
58
50
30
September
24°C
14°C
21°C
21%
27%
3.7 m/s
67
31
53
October
15°C
6°C
10°C
22%
32%
4.3 m/s
29
2
56
November
7°C
-1°C
1°C
21%
33%
4.4 m/s
5
0
26
December
-0°C
-6°C
-7°C
22%
32%
4.6 m/s
0
0
5
High and low are the warmest and coolest of four readings a day — midnight, 6am, noon and 6pm — so a true overnight low can sit a degree or two under them. Chance of rain, cloud and wind are the day’s average; feels-like and the three ratings (each out of 100: Good from 55, Ideal from 80) are read at midday.
Seasons, and the year in short Yankton weather by season
Year round, Yankton has days of about -4°C at their warmest in January, its coolest month, and 28°C in July, its warmest; the coolest hours of the day run from -9°C to 20°C through the year, and the average temperature over the year is 10°C around the clock. Rain is most likely around May and least likely around February. Every figure here is a decade of observations blended into one representative year, so it reads as what this date is usually like, not a forecast for one particular day.
Yankton weather in winterDecember to February
High -2°CLow -7°CRain 18%
Winter in Yankton has typical daily highs of about -2°C and lows of about -7°C, with a 18% chance of rain on a given day.
Yankton weather in springMarch to May
High 13°CLow 5°CRain 34%
Spring in Yankton has typical daily highs of about 13°C and lows of about 5°C, with a 34% chance of rain on a given day.
Yankton weather in summerJune to August
High 27°CLow 19°CRain 32%
Summer in Yankton has typical daily highs of about 27°C and lows of about 19°C, with a 32% chance of rain on a given day.
Yankton weather in autumnSeptember to November
High 15°CLow 6°CRain 21%
Autumn in Yankton has typical daily highs of about 15°C and lows of about 6°C, with a 21% chance of rain on a given day.
When is the rainy season in Yankton?
The rainy (wet) season in Yankton runs from March to August, peaking in May with a 36% chance of rain on a given day. The dry season is September to February; February is the driest month, at 15%.
What time of year is Yankton windiest?
Winds in Yankton are highest in April, averaging 5.4 m/s (19 km/h), and lightest in July, at 3.3 m/s (12 km/h). The prevailing wind is from the W.
What is the average temperature in Yankton year round?
The average temperature in Yankton over the whole year is 10°C. July is the hottest month, with highs of about 28°C; January is the coldest, with lows of about -9°C.