Sioux Falls, SD weather and climate in 2024
Day
22 °C
Night
9 °C
Sea
0 °C
Precipitation
80 mm
in month
Rainy days
11 days
in month
Daylight
15 hours
average
Sunshine
9 hours
average
Humidity
64 %
Day
22 °C
Night
9 °C
Sea
0 °C
Precipitation
80 mm
in month
Rainy days
11 days
in month
Daylight
15 hours
average
Sunshine
9 hours
average
Humidity
64 %
Overview: Sioux Falls, SD
Weather charts for Sioux Falls, SD
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Weather overview for Sioux Falls, SD
Weather overview
Exploring Sioux Falls' seasonal weather patterns reveals a diverse climate with variable temperatures and precipitation. The inviting warmth of summer peaks in July with average high temperatures reaching 30 °C (85 °F). In contrast, winters can be quite chilly; January experiences lows averaging -14 °C (7 °F) at night. As the seasons shift, precipitation varies, with June being the most humid and wettest month with 101 mm (3.96 in) and 12 of rainfall. Local weather is characterized by changes in wind speeds, sun hours, and humidity levels, contributing to a climate that's both dynamic and engaging.
January weather
January in Sioux Falls is characterized by cold temperatures with average daytime highs around -3 °C (27 °F). With wind speeds averaging 5 m/s and only 4, this winter month is often dry but can feel brisk and biting due to the wind chill.
February weather
As February arrives, Sioux Falls remains in winter's firm grip, with average nightly lows of -11 °C (12 °F) and daytime temperatures slightly rising to 0 °C (32 °F). With 4, precipitation is typically light, and winds stay steady at 5 m/s.
March weather
March in Sioux Falls marks the transition toward spring, with daytime highs reaching 7 °C (44 °F) and nighttime lows being less severe at -5 °C (24 °F). The wind picks up slightly, averaging 5 m/s, and precipitation increases to 38 mm (1.51 in) across 7.
April weather
April's weather in Sioux Falls offers a welcome respite from the cold, boasting average highs of 15 °C (59 °F). Nights are cooler with lows averaging 2 °C (35 °F), while the windy conditions persist, at 5 m/s. Rainy days increase to 9.41764 as spring showers become more common.
May weather
May in Sioux Falls ushers in warmer weather, with average highs of 22 °C (71 °F), while the evenings offer cool relief at an average of 9 °C (47 °F). The wind speed settles at 5 m/s, and there's a significant increase in precipitation, reaching 80 mm (3.16 in) on an average of 11.
June weather
June arrives with the highest average temperatures seen thus far, reaching up to 27 °C (80 °F) during the day. In Sioux Falls, nights are comfortable at 14 °C (58 °F), and humidity creeps up noticeably. Wind speeds slow to 5 m/s, and Sioux Falls sees its peak in rainfall with 101 mm (3.96 in) and 12.
July weather
July in Sioux Falls boasts the warmest days of the year with an impressive high of 30 °C (85 °F). Nighttime brings moderate warmth with temperatures averaging 17 °C (63 °F). Wind speeds dip to 4 m/s, illustrating calm summer breezes, while rainfall measures average at 78 mm (3.05 in).
August weather
August continues to treat Sioux Falls with high temperatures, peaking at around 28 °C (83 °F). The evening cools down to a comfortable 16 °C (60 °F). The gentle breeze at 4 m/s provides some respite from the warmth, and precipitation is still common, with 79 mm (3.10 in) expected.
September weather
September sees a gradual decrease in temperatures with highs of 24 °C (75 °F). Nights grow cooler, averaging 10 °C (50 °F). Despite the reduction in wind speeds to 4 m/s, rainfall continues to be a presence, amassing 85 mm (3.36 in).
October weather
With the onset of October, Sioux Falls witnesses a significant change in weather, with average high temperatures falling to 16 °C (61 °F). Evening temperatures dip to 3 °C (37 °F), while average wind speeds remain at 5 m/s. Rainy days start to diminish to an average of 6.740569999999999, as drier autumn air sets in.
November weather
November in Sioux Falls brings cooler days and the approach of winter, with average temperatures dropping to 6 °C (43 °F). Nights can be quite cold, averaging -5 °C (24 °F), and wind speeds persist at 5 m/s, causing a chill in the air.
December weather
December in Sioux Falls is solidly winter, with an average high temperature of -2 °C (29 °F) and lows around -12 °C (11 °F). Wind speeds average at 5 m/s, contributing to a biting wind chill, and precipitation is minimal with typically 4.
FAQs
How should I dress for Sioux Falls weather in January?
Dress warmly for Sioux Falls in January, including layers, a heavy coat, gloves, and a hat, as average overnight lows drop to -14 °C (7 °F), and daytime temperatures hover just below freezing.
Is February in Sioux Falls still cold?
Absolutely, February is still quite cold in Sioux Falls with an average high of just 0 °C (32 °F), requiring winter attire to stay comfortable.
How does the weather change in Sioux Falls during March?
March sees a noticeable warming trend in Sioux Falls with higher daytime temperatures 7 °C (44 °F), though nights remain cool. Diverse weather can include snow melting and early spring rains.
What are the typical temperatures in Sioux Falls for April?
April's temperatures in Sioux Falls are mild with daytime highs around 15 °C (59 °F), ideal for lighter layers and transitioning into spring apparel.
What does May's weather look like in Sioux Falls?
Expect pleasant and warmer days in May with plenty of sunshine and average highs around 22 °C (71 °F), while nights remain moderately cool.
How hot does it get in Sioux Falls in June?
June welcomes summer heat in Sioux Falls with daytime temperatures soaring to 27 °C (80 °F) on average, perfect for outdoor activities.
What kind of temperatures should I expect in Sioux Falls during July?
July in Sioux Falls is hot, with the highest average temperatures near 30 °C (85 °F) — light clothing and sun protection are recommended.
Is August still summer-like in Sioux Falls?
Definitely, August retains the summer spirit in Sioux Falls with warm highs of 28 °C (83 °F), making for enjoyable outdoor experiences.
Does Sioux Falls experience a significant temperature drop in September?
September marks the beginning of autumn in Sioux Falls, with noticeable cooling to a pleasant 24 °C (75 °F), perfect for light jackets and enjoying fall activities.
What kind of weather should I expect in Sioux Falls in October?
In October, Sioux Falls experiences a crisper climate with average highs of 16 °C (61 °F) and chillier nights, signaling the heart of fall is near.
Are temperatures in Sioux Falls cold in November?
Yes, November sees a downturn in temperatures in Sioux Falls with a clear transition to colder weather, and average highs around 6 °C (43 °F).
How cold is December in Sioux Falls?
December is quite cold in Sioux Falls, with average highs barely above freezing at -2 °C (29 °F) and frequent below-freezing nights.
We make the most from 40 years of historical weather data to predict the best weather conditions.
Deciding on where to go for a holiday is hard sometimes. Get inspired by the most popular destinations.
We aggregate data from combining multiple weather sources to ensure accuracy of the highest order.