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Shaded-relief map of Roswell, South Dakota: rivers, roads, the city limits and where the water drains.
SOUTH DAKOTA · MINER COUNTY

Roswell

8 people, 1,400 ft above sea level in Miner County.

1,400 ftElevation, city center
8People, 2024 estimate
0 sq miLand area
Sunny 47°
Sunny now Dew point 25° · SSE 15 mph · high 43°
City of Roswell River Interstate 2 miles
Explore the plate Order a print

The Roswell plate. Relief from Copernicus GLO-30; rivers and lakes from USGS NHD; watersheds from the USGS Watershed Boundary Dataset; roads and city limits from Census TIGER 2024.

MILE1
TODAY

Today in Roswell

NWS forecast and National Blend of Models · updated 3:00 PM CST
RIGHT NOW Huron Regional Airport (KHON) · 2:55 PM
Sunny
47° Sunny Feels like 41° · high of 43° near 3 PM
WindSSE 15 mphgusts 25
Humidity42%rising to 78% by morning
Pressure30.10 in →steady
Visibility10 mihaze-free
CloudsClear
UV index—no forecast
Dew point 25° · Dry42° by Monday: more humid
DryComfortableStickyMuggyOppressive
NEXT RAIN
Rain
Friday70% chance · showers
LIKELY AMOUNT—amounts come within 3 days
LAST RAINNov. 40.37 in · 10 dry days
ALERTS & OUTLOOKS
No watches or warnings for Miner County
NWS Sioux Falls and the Storm Prediction Center · checked 3:47 PM
SUN & MOON
↑ 7:24 AM5:06 PM ↓
9 h 41 m of daylight, 2 minutes less than yesterday
Waxing crescent, 26% lit. Next full moon: Nov. 24.
AIR & POLLEN
77
MODERATEAir quality index · ozone
No pollen source yet.

The next three days, hour by hour

Sky: clear, cloudy, night Rain likely National Blend of Models
SATURDAY, NOV. 14
SUNDAY, NOV. 15
MONDAY, NOV. 16
TUESDAY, NOV. 17
3p
6p
9p
Mid
3a
6a
9a
Noon
3p
6p
9p
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3a
6a
9a
Noon
3p
6p
9p
Mid
3a
6a
9a
Noon
mostly sunny
partly cloudy night
mostly clear night
partly cloudy night
mostly clear night
mostly sunny
mostly sunny
clear day
clear day
mostly clear night
mostly clear night
mostly clear night
partly cloudy night
mostly clear night
mostly sunny
mostly sunny
mostly sunny
partly cloudy night
partly cloudy night
partly cloudy night
partly cloudy night
partly cloudy night
partly cloudy day
windy
TEMPERATURE °F
43°
32°
52°
41°
58°
43°
CHANCE OF RAIN
50%
WIND, MPH
16
15
14
13
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14
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17
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HOW IT FEELS · DEW POINT
Dry: dew points 26 to 27° ↑ Humid air returns More humid: 41° by Tuesday

The next seven days, and how sure we are

Forecast, with the range 8 in 10 ensemble members agree on Normal, about 45° / 23°
SAT Nov. 14 Mostly sunny Mostly sunny
43° 32°
0% rain — SSE 16, gusts 28 A
SUN Nov. 15 Mostly sunny; warmer Mostly sunny; warmer
54° 39°
0% rain — S 16, gusts 30 B
MON Nov. 16 Mostly sunny Mostly sunny
59° 41°
0% rain — S 16, gusts 28 B
TUE Nov. 17 Mostly cloudy Mostly cloudy
56° 43°
0% rain — S 17, gusts 30 B
WED Nov. 18 Partly cloudy Partly cloudy
58° 38°
20% rain — WNW 10 C
THU Nov. 19 Partly cloudy; cooler Partly cloudy; cooler
48° 35°
10% rain — E 5 C
FRI Nov. 20 Showers likely Showers likely
53° 38°
70% rain 0.04–1.2″ SE 12 C
How sure are we? AModels agree: highs within 4° BSome spread: within 8° CWide spread: check back
Range from the National Blend of Models percentiles · graded on Forecast Scores
AIR MAIL

Where today’s air came from

The air arriving over Roswell about 5,000 feet above the ground was over the Canadian Prairies three days ago, and over the central Plains a day ago, about 1,450 miles back along its path. Most of the nine paths traced from around the city agree. Near the ground the air came from the Canadian Prairies; at 10,000 feet, from the Pacific Northwest. It has stayed over land, which is why it feels dry. Traced back 72 hours through NOAA’s hourly RAP analyses, nine paths at each of three heights.

THIS WEEK IN 1953 Nov. 15, 1953

The hottest this week has been

75° on Nov. 15, 1953, the hottest reading for this week of the year since 1893. Next is 73° in 2001.

73°
75°
20011953
Source: NOAA RCC-ACIS, the Howard record since 1893.
MILE2
THE GROUND

What Roswell stands on

Roswell’s center stands about 1,400 ft above sea level. Within three miles the land runs from 1,350 ft to 1,430 ft, a difference of 80 ft: gently rolling country.

Under the town center the state geologic map shows Pierre Shale (shale, bentonite), from the Late Cretaceous, 66 to 100 million years old.

The section below crosses 2 rock units mapped at the surface.

Roswell, cut in half from west to east

A section west to east, 24 miles through the town center
1,300 ft1,400 ft1,500 ft1,600 ft ROSWELL1,400 ftLow point1,300 ftHigh point of the line1,620 ft ← WE →

Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 61×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.

Rock at the surface along the line

Pierre Shale

Shale, bentonite. Age: Late Cretaceous, 66 to 100 million years old. About 14 mi of the line.

Niobrara Formation

Chalk, marlstone, shale. Age: Late Cretaceous, 66 to 100 million years old. About 11 mi of the line.

From the USGS State Geologic Map Compilation (Horton and others, 2017), the states’ geologic maps joined at a common scale.

Heights from Copernicus GLO-90 (a surface model: it includes buildings and tree canopy); summits from USGS GNIS; rivers from USGS NHDPlus HR; rock from the USGS State Geologic Map Compilation.

MILE3
THE WATER

Where Roswell’s rain goes

A raindrop that lands in Roswell reaches the Gulf of America by way of Rock Creek, the James, the Missouri and the Mississippi: about 2,140 river miles.

THE WAY DOWN, TO SCALE
Roswell≈ 2,140 mi · the Gulf of America
FROM THE CENTER OF ROSWELL ≈ 2,140 mi to the Gulf of America Rock Creek → James → Missouri → Mississippi

1,170 miles of the trip are on the Mississippi.

Traced down the USGS NHDPlus V2.1 river network from the Census center point of Roswell; river miles along the main stem, rounded.

MILE5
THE ALMANAC

Roswell’s year

1991–2020 normals · records since 1893 · Howard, 8 mi east

Roswell has a hot-summer humid continental climate. Summer afternoons average 87° in July; winter nights fall to about 5° in January. A normal year brings about 36 inches of snow; with the rain, that comes to about 26 inches of water.

29°5°34°9°47°21°61°32°73°45°82°56°87°60°85°58°77°48°63°35°47°21°33°10° JANFEBMARAPRMAYJUNJULAUGSEPOCTNOVDEC 123 TODAY ROSWELL 26.4 in rain and snowmelt
Normal high to low, by month Record high to low, by day Rain by month Freezing
July, average87° / 60°high / low, the warmest month
January, average29° / 5°high / low, the coldest month
Rain and melted snow26.4 inwettest months: May and June
Snow a year35.8 insnowiest: December
Hottest on record113°FAugust 4, 1934
Coldest on record−46°FJanuary 13, 1916
Wettest day on record5.78 inSeptember 12, 2019
Snowiest day on record14.0 inMarch 31, 1998
Climate typeHot-summer humid continentalKöppen Dfa

AROUND THE RING

1Highs below freezingDec. 17 to Feb. 10; normal highs stay below 32°
2Lows below freezingOct. 22 to April 18; normal lows fall below 32°
3Wettest stretchMay through July: 11.1 of the year’s 26.4 inches
NOVEMBER 14 IN THE RECORD

On November 14 Roswell normally reaches 48° and falls to 22°. The record high is 71°, in 1953; the record low −18°, in 1940. The most rain on this date, 0.69 in, fell in 1928.

MONTH BY MONTH
JanFebMarAprMayJunJulAugSepOctNovDec
Normal high29°34°47°61°73°82°87°85°77°63°47°33°
Normal low5°9°21°32°45°56°60°58°48°35°21°10°
Rain and melt, in0.630.671.372.683.883.703.512.892.962.351.020.69
Snow, inches5.86.46.65.20.00.00.00.00.01.03.27.6
Record high63° (1931)70° (1958)89° (1943)96° (1980)109° (1934)108° (1988)113° (1934)113° (1934)106° (1895)95° (1910)80° (2020)67° (1939)
Record low−46° (1916)−42° (1917)−24° (1913)1° (1936)16° (1946)19° (1901)34° (1915)26° (1902)13° (1899)−11° (1925)−23° (1897)−36° (1917)

Normals 1991–2020 and records since 1893 at Howard, 8 miles east, 170 ft higher. NOAA, through RCC-ACIS.

MILE7
ON THE NETWORK

Around Roswell on the Forecast Network

Neighboring plates

Mitchell SD · 26 MI 26 miles southwest Sioux Falls SD · 58 MI 58 miles southeast Sioux City IA · 123 MI 123 miles southeast Mankato MN · 185 MI 185 miles east
FORECASTCITY
Map of Roswell, South Dakota. Explore the plate
SOUTH DAKOTA · MINER

Roswell

8 people, 1,400 ft above sea level in Miner County.

1,400 ftElevation
8People
0 sq miLand
Sunny 47°
SunnyDew point 25°
1

Today in Roswell

NEXT 15 HOURS
Now mostly sunny 43° 0%
6p partly cloudy night 40° 0%
9p partly cloudy night 37° 0%
12a mostly clear night 36° 0%
3a mostly clear night 34° 0%
6a mostly clear night 33° 0%
Rain
NEXT RAINFriday · 70%
→
Sat0%
Mostly sunny Mostly sunny
32
43
A
Sun0%
Mostly sunny; warmer Mostly sunny; warmer
39
54
B
Mon0%
Mostly sunny Mostly sunny
41
59
B
Tue0%
Mostly cloudy Mostly cloudy
43
56
B
Wed20%
Partly cloudy Partly cloudy
38
58
C
Thu10%
Partly cloudy; cooler Partly cloudy; cooler
35
48
C
Fri70%
Showers likely Showers likely
38
53
C
Letters show how sure the forecast is: A, models agree; B, some spread; C, check back. Sample data.
THIS WEEK IN 1953 · NOV. 15, 1953

75°, the hottest this week of the year has been since 1893.

2

What Roswell stands on

Roswell’s center stands about 1,400 ft above sea level. Within three miles the land runs from 1,350 ft to 1,430 ft, a difference of 80 ft: gently rolling country.

Roswell, west to east Roswell1,400 ft ← WE → 24 miles through the town center; vertical exaggeration about 117×. Colors: rock at the surface.
Elevation, center1,400 ft
Within 3 miles1,350 to 1,430 ft
Lie of the landGently rolling (80 ft of relief)
Rock at the surfacePierre Shale
Its ageLate Cretaceous, 66 to 100 million years old
5

Roswell’s year

Roswell has a hot-summer humid continental climate. Summer afternoons average 87° in July; winter nights fall to about 5° in January. A normal year brings about 36 inches of snow; with the rain, that comes to about 26 inches of water.

JANFEBMARAPRMAYJUNJULAUGSEPOCTNOVDEC 123 26.4 in
July, average87° / 60° · high / low, the warmest month
January, average29° / 5° · high / low, the coldest month
Rain and melted snow26.4 in · wettest months: May and June
Snow a year35.8 in · snowiest: December
Hottest on record113°F · August 4, 1934
Coldest on record−46°F · January 13, 1916
Wettest day on record5.78 in · September 12, 2019
Snowiest day on record14.0 in · March 31, 1998
Climate typeHot-summer humid continental · Köppen Dfa
1Highs below freezing · Dec. 17 to Feb. 10; normal highs stay below 32°
2Lows below freezing · Oct. 22 to April 18; normal lows fall below 32°
3Wettest stretch · May through July: 11.1 of the year’s 26.4 inches
NOVEMBER 14 IN THE RECORD

On November 14 Roswell normally reaches 48° and falls to 22°. The record high is 71°, in 1953; the record low −18°, in 1940. The most rain on this date, 0.69 in, fell in 1928.

Normals 1991–2020 and records since 1893 at Howard, 8 miles east, 170 ft higher. NOAA, through RCC-ACIS.
3

Where the rain goes

≈ 2,140 mito the Gulf of AmericaRock Creek → James → Missouri → Mississippi

A raindrop that lands in Roswell reaches the Gulf of America by way of Rock Creek, the James, the Missouri and the Mississippi: about 2,140 river miles.

1,170 miles of the trip are on the Mississippi.