The year at a glance
Averages from 30 years of climate history, 1991-2020
| Jamestown | Metric | Mandan |
|---|---|---|
| 196 days | Sunny daysclear or partly cloudy skies | 209 days |
| 25 in | Precipitationper year | 21 in |
| 105 days | Wet daysrain or snow per year | 99 days |
| 46 in | Snowfallper year | 50 in |
| 9 days | Hot daysabove 90 °F | 14 days |
| 181 days | Freezing nightsat or below 32 °F | 183 days |
| 71% | Humidityaverage relative | 68% |
| 41 °F | Average temperatureyear round | 43 °F |
Monthly temperatures
Average daily high and low for each month, in °F. The gap between the two lines is what an ordinary day feels like across the year.
Daily highs
Daily lows
View monthly temperatures as a table
| City | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Jamestown high | 19 | 23 | 36 | 53 | 67 | 76 | 82 | 80 | 71 | 55 | 38 | 24 |
| Mandan high | 22 | 27 | 40 | 54 | 67 | 76 | 83 | 82 | 72 | 56 | 40 | 27 |
| Jamestown low | 1 | 4 | 17 | 30 | 43 | 54 | 58 | 55 | 46 | 33 | 19 | 7 |
| Mandan low | 3 | 6 | 18 | 30 | 43 | 53 | 58 | 56 | 46 | 32 | 19 | 9 |
Monthly precipitation
Total rain plus melted snow for each month, in inches. Taller bars mean wetter months.
View monthly precipitation as a table
| City | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Jamestown | 0.7 | 0.7 | 1.2 | 1.8 | 3.2 | 4.5 | 3.6 | 2.9 | 2.5 | 2.1 | 1.0 | 0.9 |
| Mandan | 0.6 | 0.7 | 1.1 | 1.9 | 2.9 | 3.8 | 3.0 | 2.3 | 1.8 | 1.8 | 0.8 | 0.7 |
Monthly sunny days
Days each month with clear or partly cloudy skies, so compare the same month between cities.
View monthly sunny days as a table
| City | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Jamestown | 13 | 11 | 13 | 14 | 16 | 17 | 24 | 24 | 21 | 17 | 14 | 13 |
| Mandan | 14 | 13 | 15 | 15 | 17 | 19 | 26 | 25 | 21 | 18 | 15 | 14 |
Keep comparing
Nearby cities and popular picks for each side of this matchup. Any two cities can be compared from the home page.
Jamestown vs another city
- Jamestown vs Valley City, ND
- Jamestown vs Devils Lake, ND
- Jamestown vs West Fargo, ND
- Jamestown vs Fargo, ND
- Jamestown vs Moorhead, MN
- Jamestown vs Bismarck, ND
- Jamestown vs New York, NY
- Jamestown vs Los Angeles, CA
- Jamestown vs Chicago, IL
- Jamestown vs Houston, TX
- Jamestown vs Phoenix, AZ
- Jamestown vs Philadelphia, PA
Mandan vs another city
- Mandan vs Bismarck, ND
- Mandan vs Dickinson, ND
- Mandan vs Minot, ND
- Mandan vs Devils Lake, ND
- Mandan vs Watford City, ND
- Mandan vs New York, NY
- Mandan vs Los Angeles, CA
- Mandan vs Chicago, IL
- Mandan vs Houston, TX
- Mandan vs Phoenix, AZ
- Mandan vs Philadelphia, PA
About this data
Every figure on this page is a 30 year average computed from daily climate history for 1991-2020, using each city's own coordinates. Wet days count days with measurable precipitation, calibrated against the wet day counts in NOAA's published climate normals. Sunny days count clear plus partly cloudy days, defined as average cloud cover of 63 percent or less and calibrated against NOAA's published sky cover tables. Snowfall figures are model estimates anchored to NOAA station measurements near each city.
Weather data by Open-Meteo.com (CC BY 4.0). Contains modified Copernicus Climate Change Service information (ERA5, ERA5-Land).