Climate Custer - South Dakota
| JanJa | FebFe | MarMa | AprAp | MayMa | JunJu | |
|---|---|---|---|---|---|---|
| Average high in ºF Av. high Hi | 37 | 38 | 45 | 53 | 62 | 72 |
| Average low in ºF Av. low Lo | 15 | 17 | 22 | 29 | 39 | 47 |
| Av. precipitation in inch Av. precip. Pre. | 0.33 | 0.67 | 1.03 | 2.04 | 3.58 | 2.83 |
| Av. snowfall in inch Snowfall Sn | 6 | 10 | 12 | 11 | 1 | 0 |
| JulJu | AugAu | SepSe | OctOc | NovNo | DecDe | |
|---|---|---|---|---|---|---|
| Average high in ºF Av. high Hi | 80 | 79 | 70 | 57 | 44 | 36 |
| Average low in ºF Av. low Lo | 54 | 53 | 43 | 32 | 23 | 15 |
| Av. precipitation in inch Av. precip. Pre. | 2.75 | 2.33 | 1.67 | 1.47 | 0.58 | 0.37 |
| Av. snowfall in inch Snowfall Sn | 0 | 0 | 0 | 4 | 6 | 6 |
What is the average weather in Custer, South Dakota?
Custer experiences a humid continental climate, marked by very large seasonal temperature contrasts. Summers are warm, while winters are cold and bring significant snowfall. The area is dry overall, with a strong seasonal pattern where summer is wetter, and winter is the driest season. Precipitation is spread relatively evenly through the year, with winter moisture often arriving as snow.
Custer Climate Graph - South Dakota Climate Chart
Daily normals Custer - South Dakota - January
Day | High ºF | Low ºF | Prec/mo inch | Prec/yr inch | Snow/mo inch | Snow/yr inch |
|---|---|---|---|---|---|---|
| 1 Jan | 36.5 | 16.2 | 0.01 | 0.01 | 0.20 | 0.20 |
| 2 Jan | 36.6 | 16.3 | 0.02 | 0.02 | 0.40 | 0.40 |
| 3 Jan | 36.7 | 16.3 | 0.03 | 0.03 | 0.60 | 0.60 |
| 4 Jan | 36.8 | 16.4 | 0.04 | 0.04 | 0.70 | 0.70 |
| 5 Jan | 36.9 | 16.4 | 0.05 | 0.05 | 0.90 | 0.90 |
| 6 Jan | 37.0 | 16.5 | 0.06 | 0.06 | 1.10 | 1.10 |
| 7 Jan | 37.1 | 16.5 | 0.07 | 0.07 | 1.30 | 1.30 |
| 8 Jan | 37.2 | 16.5 | 0.08 | 0.08 | 1.50 | 1.50 |
| 9 Jan | 37.3 | 16.5 | 0.09 | 0.09 | 1.70 | 1.70 |
| 10 Jan | 37.3 | 16.6 | 0.10 | 0.10 | 1.90 | 1.90 |
| 11 Jan | 37.4 | 16.6 | 0.11 | 0.11 | 2.10 | 2.10 |
| 12 Jan | 37.4 | 16.6 | 0.13 | 0.13 | 2.30 | 2.30 |
| 13 Jan | 37.5 | 16.6 | 0.14 | 0.14 | 2.50 | 2.50 |
| 14 Jan | 37.5 | 16.5 | 0.15 | 0.15 | 2.70 | 2.70 |
| 15 Jan | 37.5 | 16.5 | 0.16 | 0.16 | 2.90 | 2.90 |
| 16 Jan | 37.5 | 16.5 | 0.17 | 0.17 | 3.10 | 3.10 |
| 17 Jan | 37.5 | 16.4 | 0.18 | 0.18 | 3.30 | 3.30 |
| 18 Jan | 37.5 | 16.4 | 0.19 | 0.19 | 3.50 | 3.50 |
| 19 Jan | 37.4 | 16.3 | 0.20 | 0.20 | 3.70 | 3.70 |
| 20 Jan | 37.4 | 16.3 | 0.21 | 0.21 | 4.00 | 4.00 |
| 21 Jan | 37.3 | 16.2 | 0.22 | 0.22 | 4.20 | 4.20 |
| 22 Jan | 37.3 | 16.1 | 0.24 | 0.24 | 4.40 | 4.40 |
| 23 Jan | 37.2 | 16.0 | 0.25 | 0.25 | 4.60 | 4.60 |
| 24 Jan | 37.1 | 15.9 | 0.26 | 0.26 | 4.80 | 4.80 |
| 25 Jan | 37.0 | 15.9 | 0.27 | 0.27 | 5.10 | 5.10 |
| 26 Jan | 36.9 | 15.8 | 0.29 | 0.29 | 5.30 | 5.30 |
| 27 Jan | 36.8 | 15.7 | 0.30 | 0.30 | 5.60 | 5.60 |
| 28 Jan | 36.7 | 15.6 | 0.32 | 0.32 | 5.80 | 5.80 |
| 29 Jan | 36.6 | 15.5 | 0.33 | 0.33 | 6.10 | 6.10 |
| 30 Jan | 36.6 | 15.4 | 0.34 | 0.34 | 6.30 | 6.30 |
| 31 Jan | 36.5 | 15.3 | 0.36 | 0.36 | 6.60 | 6.60 |
Weather history Custer - July 2026
| Day | High ºF | Low ºF | Precip. inch | Snow inch | Snow d. inch |
|---|---|---|---|---|---|
| 01 Jul | 79.0 | 53.1 | 0.00 | 0.00 | 0.0 |
| 02 Jul | 81.0 | 57.0 | 0.00 | 0.00 | 0.0 |
| 03 Jul | 82.9 | 55.9 | 0.16 | 0.00 | 0.0 |
| 04 Jul | 77.0 | 53.1 | 0.08 | 0.00 | 0.0 |
| 05 Jul | 78.1 | 59.0 | 0.00 | 0.00 | 0.0 |
| 06 Jul | 87.1 | 63.0 | 0.00 | 0.00 | 0.0 |
| 07 Jul | 86.0 | 57.0 | 0.19 | 0.00 | 0.0 |
| 08 Jul | 88.0 | 53.1 | 0.08 | 0.00 | 0.0 |
| 09 Jul | 75.0 | 55.9 | 0.91 | 0.00 | 0.0 |
| 10 Jul | 78.1 | 52.0 | 0.00 | 0.00 | 0.0 |
| 11 Jul | 81.0 | 61.0 | 0.00 | 0.00 | 0.0 |
| 12 Jul | 89.1 | 64.9 | 0.00 | 0.00 | 0.0 |
| 13 Jul | 91.9 | 63.0 | 0.00 | 0.00 | 0.0 |
| 14 Jul | 89.1 | 63.0 | 0.00 | 0.00 | 0.0 |
| 15 Jul | 88.0 | 55.0 | 0.00 | 0.00 | 0.0 |
| 16 Jul | 78.1 | 55.0 | 0.18 | 0.00 | 0.0 |
| 17 Jul | 78.1 | 55.0 | 0.55 | 0.00 | 0.0 |
| 18 Jul | 73.0 | 54.0 | 0.00 | 0.00 | 0.0 |
| 19 Jul | 69.1 | 60.1 | 0.00 | 0.00 | 0.0 |
| 20 Jul | 78.1 | 55.9 | 0.00 | 0.00 | 0.0 |
| 21 Jul | 71.1 | 52.0 | 0.00 | 0.00 | 0.0 |
| 22 Jul | 73.0 | 57.0 | 0.53 | 0.00 | 0.0 |
| 23 Jul | 73.9 | 59.0 | 0.00 | 0.00 | 0.0 |
| 24 Jul | 73.9 | 57.9 | 0.00 | 0.00 | 0.0 |
| 25 Jul | 84.0 | 64.9 | 0.00 | 0.00 | 0.0 |
| 26 Jul | 93.9 | 57.9 | 0.28 | 0.00 | 0.0 |
| 27 Jul | 91.0 | 61.0 | 0.00 | 0.00 | 0.0 |
| 28 Jul | 84.0 | 61.0 | 0.04 | 0.00 | 0.0 |
| 29 Jul | 82.0 | 61.0 | 0.23 | 0.00 | 0.0 |
| 30 Jul | 82.9 | 57.0 | 0.04 | 0.00 | 0.0 |
| 31 Jul | 75.0 | 53.1 | 0.67 | 0.00 | 0.0 |
Past weather Custer
| Jul 26 | Normal | ||
|---|---|---|---|
| Average high temperature Av. high temp. | 81.0 ºF | 37 ºF | |
| Average low temperature Av. low temp. | 57.7 ºF | 15 ºF | |
| Total precipitation Total precip. | 3.94 inch | 0.33 inch | |
| Total snowfall Total snowfall | 0.00 inch | 6 inch | |
| Highest max temperature Highest max temp. | 93.9 ºF | - | |
| Lowest max temperature Lowest max temp. | 69.1 ºF | - | |
| Highest min temperature Highest min temp. | 64.9 ºF | - | |
| Lowest min temperature Lowest min temp. | 52.0 ºF | - | |
Past weather July 2026 incomplete - Missing data
Geo Custer - South Dakota
| Country | United States | |
|---|---|---|
| State | South Dakota | |
| County | Custer | |
| City | Custer | |
| Zip Code | 57730 | |
| Longitude | -103.62 dec. degr. | |
| Latitude | 43.73 dec. degr. | |
| Altitude - Elevation | 5561ft | |
| ICAO | - | |
| IATA | - |
Date and Time Custer - South Dakota
| Local Time | 09:08 PM | |
|---|---|---|
| Sunrise | 06:42 AM | |
| Sunset | 06:49 PM | |
| Day/Night | Night | |
| Timezone | Mountain Daylight Time | |
| Timezone DB | America - Denver |
Map of Custer - South Dakota
USGS National Map — Open interactive map
Custer weather averages
| Annual high temperature | 56ºF |
| Annual low temperature | 32ºF |
| Average annual precip. | 19.65 inch |
| Av. annual snowfall | 56 inch |
Station Data
Monthly averages Custer
Longitude: -103.618, Latitude: 43.7333
Average weather Custer, SD - 57730
Monthly: 1991-2020 normals
History: 2007-2026
Abbreviations
Average precipitation in : Av. precipitation in
Jan: January, Feb: February, ...Jan: January, Feb: February, ...Ja: January, Fe: February, ...