Climate and monthly weather forecastWagner, SD
Climate and monthly weather forecast
The climate of Wagner
As per the data set and according to the Köppen climate classification, Wagner, South Dakota experiences a humid continental climate, marked by hot summers and no dry season. Wagner lies in the Dfa climate zone.Through the year, Wagner's temperatures vary significantly. The temperature swings from a low of 13.6°F (-10.2°C) in January to a high of 86.5°F (30.3°C) in July. Atmospherically, the barometric pressure remains fairly stable, with monthly averages varying only minimally from a low of 29.85inHg (1010.8mbar) in June to a high of 30.16inHg (1021.3mbar) in January.
Regarding humidity, the lowest level of relative humidity is seen in September at 63% while January holds the maximum at 84%. Wagner's weather also exhibits significant variations in terms of rainfall from a high of 2.72" (69mm) in May to a low of 0.31" (8mm) in February. Additionally, snowfall is present during the winter months reaching a peak of 1.93" (49mm) in December and January.
Unique weather conditions in Wagner include the high sunshine levels in July with a monthly average of 11.1 hours a day while the lowest are in December with 4.9 hours a day. Similarly, UV Index peaks at 6 in the summer months (June, July and August) and falls to 2 in the winter months (November, December and January).
The best time to visit Wagner
Given the hot summers and the significantly cold winters in Wagner, the best time to visit would be during the spring or autumn months. The ideal months are May and October with temperature highs averaging around 68.5°F (20.3°C) and 59.7°F (15.4°C) respectively. During these months the weather conditions are moderate and enjoyable, unlikely to cause discomfort to visitors.The worst time to visit Wagner
Owing to its geographical position, Wagner experiences harsh winters and hot summers. The month of January could be considered the least ideal time for visitation as temperatures plunge to an average low of 13.6°F (-10.2°C). In contrast, the hottest month of July exhibits average high temperatures soaring to a scorching 86.5°F (30.3°C).Spring weather in Wagner
The spring in Wagner involves gradually increasing temperatures and rainfall. Beginning from 30.4°F (-0.9°C) in March, the temperatures ascend to 39.7°F (4.3°C) in April and a much warmer 50.4°F (10.2°C) in May. Rainfall during this period starts from 0.98" (25mm) in March and increases to 1.42" (36mm) in April and significantly to 2.72" (69mm) in May.Summer weather in Wagner
Summers in Wagner are known for their heat, starting from 68.5°F (20.3°C) in June and peaking at 86.5°F (30.3°C) in July, then slightly dropping to 85.1°F (29.5°C) by August. Despite the intense heat, rainfall is also highest during this time with an average of 2.28" (58mm) in June, 1.73" (44mm) in July and 1.46" (37mm) in August.Autumn weather in Wagner
During the autumn months, temperatures in Wagner cool down from an average high of 76.3°F (24.6°C) in September to 59.7°F (15.4°C) in October and further to 46.4°F (8°C) by November. Rainfall during this period gradually descends from an average of 1.02" (26mm) in September and October to 0.35" (9mm) in November.Winter weather in Wagner
Wagner's winter is stark, with temperatures falling to an average high of 30.4°F (-0.9°C) in December and an average low dipping to 13.6°F (-10.2°C) in January. The temperature rises slightly to 16.9°F (-8.4°C) in February. Rain is sparse, with averages of only 0.59" (15mm) in December and 0.31" (8mm) in February. Additionally, substantial snowfall is witnessed during these months, providing for some picturesque landscapes.Weather in January
January ushers in the new year with icy temperatures for residents of Wagner, South Dakota. The cold weather is marked by frosty mornings as temperatures plummet. A significant level of humidity during this time, often results in mists or fog. Weather in January »Weather in February
As Winter persists in Wagner, the coldest days are left behind as February arrives, bringing slightly warmer conditions than January. Residents, however, continue to brace for frosty temperatures, especially during the evenings and nights. Weather in February »Weather in March
March transitions Wagner from rigid winter into the onset of Spring. Warmer temperatures are on the horizon, and the snow starts to slacken, giving way to a landscape in thaw. The daylight hours increase, adding brightness to the city's environs. Weather in March »Weather in April
April reinforces the Spring weather in Wagner, with noticeable warmer days compared to March. Light rain showers and a boost in sunlight manifest the typical signs of the season. Nature seems to awaken from its winter sleep with blooming flora around the city. Weather in April »Weather in May
May is when the full-blown Spring weather embraces Wagner, allowing more markedly warmer days. Nature is in full bloom, making it an ideal time for outdoor activities and sightseeing. May showers are frequent, offering a reprieve from the raising temperatures. Weather in May »Weather in June
June heralds the onset of Summer in Wagner, bringing with it longer days and warmer temperatures. Sunshine in abundance and a decrease in rainfall, make this the perfect time for outdoor activities. The city is lively with people enjoying the pleasant summer weather and local events. Weather in June »Weather in July
July is the heart of Summer in Wagner with consistently high temperatures and the most sunshine hours of the whole year. The city experiences a decrease in rainfall, making it one of the driest months of the year. Outdoor activities are perhaps most enjoyable now, given the extended daylight and warm days. Weather in July »Weather in August
Summer continues in August with somewhat similar temperatures compared to July. It is a sunny month, with long days filled with plentiful light. The weather is conducive for excursions and other outdoor activities, as the city basks in the warmth. Weather in August »Weather in September
September signals the arrival of Fall and witnesses a progressive decrease in temperatures. The leaves turning their shades, coupled with the enhanced cloud cover, lend it an essence of an emerging autumn landscape. Shorter days and longer nights start becoming more apparent and humidity levels drop to around 63%. Weather in September »Weather in October
October immerses Wagner in the full Fall spirit, with declining temperatures and an increase in rainfall. Autumnal hues of falling leaves paint the city in beautiful yellow and red tones. This month witnesses a gradual drop in temperatures, setting the stage for the upcoming Winter season. Weather in October »Weather in November
November is a precursor to winter in Wagner, South Dakota. The weather continues to get colder, and the first signs of winter start to appear. Rainfall reduces compared to the previous month, bringing drier days. There is also a steady reduction of sunlight hours as the days shorten and nights lengthen. Weather in November »Weather in December
December welcomes the biting Winter with cold winds and snowfall. The weather cools considerably compared to November. Residents frequently seek the comfort of indoor heating due to the cold temperatures. Snow starts covering the city, creating a picturesque winter wonderland setting. Weather in December »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Wagner, SD
The warmest month (with the highest average high temperature) is July (86.5°F).
The month with the lowest average high temperature is January (27.3°F).
The month with the highest average low temperature is July (65.7°F).
The coldest month (with the lowest average low temperature) is January (13.6°F).
Average pressure
Wagner, SD
- Average pressure in January:
30.16"Hg - Average pressure in February:
30.15"Hg - Average pressure in March:
30.05"Hg - Average pressure in April:
29.93"Hg - Average pressure in May:
29.91"Hg - Average pressure in June:
29.85"Hg
- Average pressure in July:
29.92"Hg - Average pressure in August:
29.92"Hg - Average pressure in September:
29.96"Hg - Average pressure in October:
29.99"Hg - Average pressure in November:
30.06"Hg - Average pressure in December:
30.13"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).
Average wind speed
Wagner, SD
- Average wind speed in January:
10.4mph - Average wind speed in February:
10.4mph - Average wind speed in March:
10.7mph - Average wind speed in April:
11.1mph - Average wind speed in May:
9.6mph - Average wind speed in June:
8.9mph
- Average wind speed in July:
8.3mph - Average wind speed in August:
8.5mph - Average wind speed in September:
9.4mph - Average wind speed in October:
10.3mph - Average wind speed in November:
10.1mph - Average wind speed in December:
10.3mph
The windiest month (with the highest average wind speed) is April (11.1mph).
The calmest month (with the lowest average wind speed) is July (8.3mph).
Average humidity
Wagner, SD
The month with the highest relative humidity is January (84%).
The month with the lowest relative humidity is October (62%).
Average rainfall
Wagner, SD
- Average rainfall in January:
0.39" - Average rainfall in February:
0.31" - Average rainfall in March:
0.98" - Average rainfall in April:
1.42" - Average rainfall in May:
2.72" - Average rainfall in June:
2.28"
- Average rainfall in July:
1.73" - Average rainfall in August:
1.46" - Average rainfall in September:
1.02" - Average rainfall in October:
1.02" - Average rainfall in November:
0.35" - Average rainfall in December:
0.59"
The wettest month (with the highest rainfall) is May (2.72").
The driest month (with the least rainfall) is February (0.31").
Average rainfall days
Wagner, SD
- Average rainfall days in January:
2.9 days - Average rainfall days in February:
3.6 days - Average rainfall days in March:
8.8 days - Average rainfall days in April:
10.8 days - Average rainfall days in May:
15.3 days - Average rainfall days in June:
14.7 days
- Average rainfall days in July:
12.4 days - Average rainfall days in August:
11.3 days - Average rainfall days in September:
9.4 days - Average rainfall days in October:
7.7 days - Average rainfall days in November:
4.1 days - Average rainfall days in December:
3.1 days
The month with the highest number of rainy days is May (15.3 days).
The month with the least rainy days is January (2.9 days).
Average snowfall
Wagner, SD
The months with the highest snowfall are January and March (1.93").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days
Wagner, SD
- Average snowfall days in January:
8.2 days - Average snowfall days in February:
7.5 days - Average snowfall days in March:
5.2 days - Average snowfall days in April:
1.8 days - Average snowfall days in May:
0 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0 days - Average snowfall days in October:
0.8 days - Average snowfall days in November:
2.8 days - Average snowfall days in December:
6.5 days
The month with the highest number of snowfall days is January (8.2 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight / Average sunshine
Wagner, SD
- Average daylight in January:
9h and 24min - Average daylight in February:
10h and 36min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 24min - Average daylight in May:
14h and 42min - Average daylight in June:
15h and 18min
- Average daylight in July:
15h and 0min - Average daylight in August:
13h and 54min - Average daylight in September:
12h and 30min - Average daylight in October:
11h and 0min - Average daylight in November:
9h and 42min - Average daylight in December:
9h and 6min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in January:
4h and 42min - Average sunshine in February:
5h and 48min - Average sunshine in March:
6h and 30min - Average sunshine in April:
8h and 6min - Average sunshine in May:
9h and 0min - Average sunshine in June:
10h and 24min
- Average sunshine in July:
11h and 6min - Average sunshine in August:
10h and 30min - Average sunshine in September:
8h and 54min - Average sunshine in October:
6h and 36min - Average sunshine in November:
5h and 54min - Average sunshine in December:
4h and 54min
The month with the most sunshine is July (Average sunshine: 11h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 42min).
Average sunshine days
Wagner, SD
- Average sunshine days in January:
20.9 days - Average sunshine days in February:
19.5 days - Average sunshine days in March:
18.3 days - Average sunshine days in April:
15.4 days - Average sunshine days in May:
13.3 days - Average sunshine days in June:
12.3 days
- Average sunshine days in July:
14.6 days - Average sunshine days in August:
16.7 days - Average sunshine days in September:
18.4 days - Average sunshine days in October:
20.7 days - Average sunshine days in November:
23.4 days - Average sunshine days in December:
22.5 days
The month with the most sunshine days is November (23.4 days).
The month with the least sunshine days is June (12.3 days).
Average UV index
Wagner, SD
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover
Wagner, SD
The month with the most cloud cover is January (Cloud cover 49).
The month with the least cloud cover is July (Cloud cover 23).
Average visibility
Wagner, SD
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).





