Warm-summer humid continental climate
Climate Watertown - South Dakota
Annual high53ºF
Annual low32ºF
Precipitation21.85 inch
| Month | HighºF | LowºF | Precipinch | Snowinch |
|---|---|---|---|---|
| Jan | 22 | 3 | 0.53 | 5 |
| Feb | 27 | 8 | 0.53 | 7 |
| Mar | 39 | 20 | 1.11 | 6 |
| Apr | 56 | 32 | 2.02 | 3 |
| May | 68 | 45 | 2.67 | 0 |
| Jun | 77 | 55 | 3.55 | 0 |
| Jul | 83 | 60 | 2.91 | 0 |
| Aug | 80 | 57 | 2.78 | 0 |
| Sep | 71 | 47 | 2.54 | 0 |
| Oct | 56 | 35 | 1.92 | 2 |
| Nov | 39 | 21 | 0.76 | 5 |
| Dec | 25 | 7 | 0.53 | 7 |
- JanHigh 22ºFLow 3ºFPrecip 0.53 inch
- FebHigh 27ºFLow 8ºFPrecip 0.53 inch
- MarHigh 39ºFLow 20ºFPrecip 1.11 inch
- AprHigh 56ºFLow 32ºFPrecip 2.02 inch
- MayHigh 68ºFLow 45ºFPrecip 2.67 inch
- JunHigh 77ºFLow 55ºFPrecip 3.55 inch
- JulHigh 83ºFLow 60ºFPrecip 2.91 inch
- AugHigh 80ºFLow 57ºFPrecip 2.78 inch
- SepHigh 71ºFLow 47ºFPrecip 2.54 inch
- OctHigh 56ºFLow 35ºFPrecip 1.92 inch
- NovHigh 39ºFLow 21ºFPrecip 0.76 inch
- DecHigh 25ºFLow 7ºFPrecip 0.53 inch
Climate summary
What is the average weather in Watertown, South Dakota?
Watertown experiences a humid continental climate, marked by a very strong seasonal contrast. Summers are warm, while winters are very cold and bring significant snowfall. Precipitation is moderate annually, with a strong pattern of wetter summers and drier winters, though moisture is relatively even year-round.
Watertown weather averages
Annual high53ºF
Annual low32ºF
Precipitation21.85 inch
Snowfall35 inch
Daily normals Watertown - South Dakota - January
| Day | HighºF | LowºF | Prec/ | Prec/ | Snow/ | Snow/ |
|---|---|---|---|---|---|---|
| Jan 1 | 22.0 | 5.0 | 0.02 | 0.02 | 0.30 | 0.30 |
| Jan 2 | 21.8 | 4.8 | 0.04 | 0.04 | 0.50 | 0.50 |
| Jan 3 | 21.7 | 4.6 | 0.06 | 0.06 | 0.80 | 0.80 |
| Jan 4 | 21.6 | 4.4 | 0.08 | 0.08 | 1.00 | 1.00 |
| Jan 5 | 21.5 | 4.2 | 0.10 | 0.10 | 1.20 | 1.20 |
| Jan 6 | 21.4 | 4.1 | 0.12 | 0.12 | 1.50 | 1.50 |
| Jan 7 | 21.3 | 3.9 | 0.14 | 0.14 | 1.70 | 1.70 |
| Jan 8 | 21.2 | 3.7 | 0.16 | 0.16 | 2.00 | 2.00 |
| Jan 9 | 21.2 | 3.6 | 0.18 | 0.18 | 2.20 | 2.20 |
| Jan 10 | 21.1 | 3.4 | 0.20 | 0.20 | 2.40 | 2.40 |
| Jan 11 | 21.1 | 3.3 | 0.22 | 0.22 | 2.60 | 2.60 |
| Jan 12 | 21.0 | 3.1 | 0.24 | 0.24 | 2.80 | 2.80 |
| Jan 13 | 21.0 | 3.0 | 0.26 | 0.26 | 3.00 | 3.00 |
| Jan 14 | 21.0 | 2.9 | 0.27 | 0.27 | 3.20 | 3.20 |
| Jan 15 | 21.0 | 2.8 | 0.29 | 0.29 | 3.40 | 3.40 |
| Jan 16 | 21.0 | 2.7 | 0.31 | 0.31 | 3.60 | 3.60 |
| Jan 17 | 21.0 | 2.6 | 0.32 | 0.32 | 3.70 | 3.70 |
| Jan 18 | 21.1 | 2.5 | 0.34 | 0.34 | 3.90 | 3.90 |
| Jan 19 | 21.1 | 2.5 | 0.36 | 0.36 | 4.10 | 4.10 |
| Jan 20 | 21.1 | 2.4 | 0.38 | 0.38 | 4.30 | 4.30 |
| Jan 21 | 21.2 | 2.4 | 0.39 | 0.39 | 4.50 | 4.50 |
| Jan 22 | 21.3 | 2.3 | 0.41 | 0.41 | 4.70 | 4.70 |
| Jan 23 | 21.3 | 2.3 | 0.43 | 0.43 | 4.90 | 4.90 |
| Jan 24 | 21.4 | 2.3 | 0.45 | 0.45 | 5.20 | 5.20 |
| Jan 25 | 21.5 | 2.3 | 0.47 | 0.47 | 5.40 | 5.40 |
| Jan 26 | 21.6 | 2.3 | 0.49 | 0.49 | 5.60 | 5.60 |
| Jan 27 | 21.7 | 2.4 | 0.50 | 0.50 | 5.80 | 5.80 |
| Jan 28 | 21.8 | 2.4 | 0.52 | 0.52 | 6.00 | 6.00 |
| Jan 29 | 21.9 | 2.5 | 0.54 | 0.54 | 6.30 | 6.30 |
| Jan 30 | 22.1 | 2.6 | 0.56 | 0.56 | 6.50 | 6.50 |
| Jan 31 | 22.2 | 2.7 | 0.58 | 0.58 | 6.70 | 6.70 |
Precipitation and snow add up through the month (/mo) and the year (/yr)
Weather history Watertown - October 2026
| Day | HighºF | LowºF | Precip.inch |
|---|---|---|---|
| Oct 1 | 64.0 | 42.1 | 0.00 |
| Oct 2 | 57.0 | 35.1 | 0.01 |
| Oct 3 | 66.9 | 46.9 | 0.06 |
| Oct 4 | – | – | – |
| Oct 5 | – | – | – |
| Oct 6 | – | – | – |
| Oct 7 | 71.1 | 42.1 | 0.00 |
| Oct 8 | 71.1 | 45.0 | 0.00 |
| Oct 9 | 77.0 | 51.1 | 0.00 |
| Oct 10 | 88.0 | 57.9 | 0.00 |
| Oct 11 | 75.0 | 50.0 | 0.00 |
| Oct 12 | 55.9 | 46.0 | T |
| Oct 13 | 55.0 | 42.1 | 0.00 |
| Oct 14 | 46.9 | 44.1 | 0.02 |
| Oct 15 | 52.0 | 42.1 | 0.15 |
| Oct 16 | 50.0 | 32.0 | T |
| Oct 17 | – | – | – |
| Oct 18 | 69.1 | 37.0 | 0.00 |
| Oct 19 | – | – | – |
| Oct 20 | – | – | – |
| Oct 21 | 72.0 | 39.9 | 0.00 |
| Oct 22 | 75.9 | 37.0 | 0.00 |
| Oct 23 | 73.0 | 60.1 | 0.00 |
| Oct 24 | 63.0 | 41.0 | 0.06 |
| Oct 25 | 46.0 | 33.1 | 0.15 |
| Oct 26 | 41.0 | 37.9 | 0.43 |
| Oct 27 | 48.9 | 37.9 | 0.06 |
| Oct 28 | 57.9 | 36.0 | 0.03 |
| Oct 29 | 55.0 | 30.0 | 0.00 |
| Oct 30 | 57.9 | 37.0 | T |
| Oct 31 | 60.1 | 48.0 | 0.18 |
The data for October 2026 is incomplete: some days or values are missing.
- –No data
- –Not yet observed or received
- TTrace, too small to measure
Observed extremes
- Highest max temperature88.0ºF · Oct 10
- Lowest max temperature41.0ºF · Oct 26
- Highest min temperature60.1ºF · Oct 23
- Lowest min temperature30.0ºF · Oct 29
Geo Watertown - South Dakota
Location
- Country
- United States
- State
- South Dakota
- County
- Codington
- City
- Watertown
- Zip Code
- 57201
- Elevation
- 1732 ft
- Longitude
- -97.15
- Latitude
- 44.91
- ICAO
- –
- IATA
- –