Dubois, Wyoming climate: Normal weather by month, frost dates and records
Dubois's normal year runs from 13°F December nights to 79°F July afternoons, with 10.9 inches of precipitation and 55 inches of snow a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 4.7°C, December lows of −11°C, July highs of 26°C, 276 mm of precipitation a year.
- NOAA stationDubois
- Station IDUSC00482715
- Location43.54°N 109.66°W
- Elevation6,955 ft (2,120 m)
- Population989
On October 23, the normal high in Dubois is 53°F and the normal low 24°F, and the chance of measurable rain or snow is 21%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Dubois.
- Jan 36° 13°
- Feb 37° 13°
- Mar 45° 19°
- Apr 51° 24°
- May 60° 32°
- Jun 70° 39°
- Jul 79° 44°
- Aug 78° 42°
- Sep 69° 35°
- Oct 56° 26°
- Nov 42° 19°
- Dec 34° 13°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
What is the weather like in Dubois each month?
July is the warmest month, with normal highs of 79°F; December the coldest, with normal lows of 13°F. The most precipitation falls in May (1.97 in), the least in January (0.25 in).
| Month | High | Low | Mean | Precip. | Snow | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|---|
| January | 36°F | 13°F | 24.3°F | 0.25 | 4.8 | 5 | <1 | 30 | 9 h 20 min |
| February | 37°F | 13°F | 24.7°F | 0.47 | 8.1 | 7 | <1 | 27 | 10 h 30 min |
| March | 45°F | 19°F | 31.5°F | 0.54 | 8.2 | 7 | <1 | 29 | 11 h 50 min |
| April | 51°F | 24°F | 37.3°F | 1.28 | 9.9 | 9 | <1 | 26 | 13 h 20 min |
| May | 60°F | 32°F | 46.0°F | 1.97 | 4.0 | 11 | <1 | 15 | 14 h 40 min |
| June | 70°F | 39°F | 54.5°F | 1.39 | 0.6 | 9 | <1 | 3 | 15 h 20 min |
| July | 79°F | 44°F | 61.4°F | 0.97 | 0.0 | 7 | 1 | 1 | 15 h 10 min |
| August | 78°F | 42°F | 60.0°F | 0.89 | 0.0 | 8 | <1 | 1 | 14 h |
| September | 69°F | 35°F | 51.8°F | 1.30 | 0.8 | 7 | <1 | 9 | 12 h 30 min |
| October | 56°F | 26°F | 41.0°F | 0.88 | 4.8 | 7 | <1 | 24 | 11 h 10 min |
| November | 42°F | 19°F | 30.5°F | 0.58 | 7.6 | 7 | <1 | 28 | 9 h 40 min |
| December | 34°F | 13°F | 23.5°F | 0.34 | 6.5 | 6 | <1 | 30 | 9 h |
| Year (annual) | 55°F | 26°F | 40.5°F | 10.86 | 55.3 | 88 | 1 | 224 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. | Snow |
|---|---|---|---|---|---|
| January | 2°C | −11°C | −4.3°C | 6 mm | 12 cm |
| February | 3°C | −11°C | −4.1°C | 12 mm | 21 cm |
| March | 7°C | −7°C | −0.3°C | 14 mm | 21 cm |
| April | 10°C | −4°C | 2.9°C | 33 mm | 25 cm |
| May | 16°C | 0°C | 7.8°C | 50 mm | 10 cm |
| June | 21°C | 4°C | 12.5°C | 35 mm | 2 cm |
| July | 26°C | 6°C | 16.3°C | 25 mm | 0 cm |
| August | 26°C | 5°C | 15.6°C | 23 mm | 0 cm |
| September | 20°C | 2°C | 11.0°C | 33 mm | 2 cm |
| October | 13°C | −3°C | 5.0°C | 22 mm | 12 cm |
| November | 6°C | −7°C | −0.8°C | 15 mm | 19 cm |
| December | 1°C | −11°C | −4.7°C | 9 mm | 17 cm |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00482715; annual normals. Wet days: 0.01 inch or more; 90°F days and freezing nights: NOAA's day counts. Daylight: sunrise to sunset on the 15th, computed from the latitude.
When is the best weather to visit Dubois?
Normal highs sit between 65°F and 85°F in June, July, August and September. Of those, September has the fewest days with rain (7).
That is a measurement, not a recommendation: it counts the months whose normal afternoon high sits between 65°F and 85°F, where a light layer is enough by day.
Source: NOAA NCEI 1991-2020 monthly normals, station USC00482715.
How hot and how cold does it get in Dubois?
In a normal year in Dubois, 1 day a year reaches 90°F, 224 nights fall to 32°F or colder and 88 days bring measurable precipitation.
- Days at 90°F or more
- 1a normal year
- Days at 100°F or more
- fewer than 1a normal year
- Nights at 32°F or colder
- 224a normal year
- Days that stay below freezing
- 45high of 32°F or less
- Days with 0.01 inch of precipitation
- 88a normal year
- Days with 1 inch of snow or more
- 22a normal year
The highest temperature in this station's record (since 1907) is 100°F, on July 28, 1978; the lowest is −49°F, on December 5, 1972.
The wettest calendar year on that record is 1957, with 13.25 in; the snowiest season is 2016–17, with 109.3 inches.
Source: NOAA NCEI 1991-2020 annual normals, station USC00482715; records: ACIS (NOAA Regional Climate Centers), station USC00482715. Records use complete months only; a month missing more than three days is left out.
How sunny is Dubois?
Over a year 76% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Dubois, 4.5 kWh per square metre a day. July is the sunniest month (82%) and May the cloudiest (66%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 80% | 2.3 |
| February | 79% | 3.3 |
| March | 78% | 4.5 |
| April | 72% | 5.4 |
| May | 66% | 5.8 |
| June | 77% | 7.0 |
| July | 82% | 7.2 |
| August | 81% | 6.2 |
| September | 79% | 4.8 |
| October | 72% | 3.2 |
| November | 73% | 2.2 |
| December | 75% | 1.8 |
Source: NASA POWER solar climatology, 2001-2020 (CERES SYN1deg). Satellite-based, for the 1-degree cell (about 100 km across) around the station, so it describes the area rather than the airport.
How much heating and cooling does Dubois need?
A normal year in Dubois brings 8,930 heating degree days, 66% more than the median U.S. place (5,373), and 32 cooling degree days, 96% fewer than the median (908). Ten months need 300 or more heating degree days, a monthly mean of about 55°F or colder. For gardens and crops, NOAA counts 1,024 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 1,263 | 0 |
| February | 1,128 | 0 |
| March | 1,039 | 0 |
| April | 832 | 0 |
| May | 589 | 0 |
| June | 317 | 2 |
| July | 129 | 19 |
| August | 165 | 10 |
| September | 397 | 1 |
| October | 746 | 0 |
| November | 1,037 | 0 |
| December | 1,288 | 0 |
| Year (annual) | 8,930 | 32 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00482715. A degree day is one degree of a day's mean temperature below 65°F (heating) or above it (cooling); utilities use them to estimate energy use.
Has Dubois been warmer than normal lately?
2025 averaged 42.5°F, 2.0°F above the 1991-2020 normal of 40.5°F.
| Year | Mean | Against normal | Precip. | Snow |
|---|---|---|---|---|
| 2025 | 42.5°F | +2.0°F | 11.67 | 66.5 |
Over 47 complete years from 1911 to 2025, the station's annual mean temperature rose at a fitted 2.5°F per century (+0.14°C per decade). A fitted rate summarizes the whole record; single years swing well above and below it.
Source: observed years: ACIS, station USC00482715; trend: NOAA GHCN-Monthly v4. A year counts only with all twelve months complete.
How does Dubois's climate compare?
Dubois is warmer than 14 of the other 70 places with their own NOAA record in Wyoming, and wetter than 23. Across the 7,247 U.S. stations with normals, its annual mean of 40.5°F is warmer than 6%.
In the Köppen classification computed from these normals, Dubois is BSk: cold semi-arid steppe. What the classes mean.
Places with the most similar year elsewhere
Measured month by month on the normal high, low and precipitation, among places of 20,000 or more people in other states:
Source: NOAA NCEI 1991-2020 normals for every station PlainClimate covers. Similarity: the root-mean-square difference of the 36 monthly figures, precipitation weighted so an inch counts like 6°F.
Questions about Dubois's climate
What is the coldest month in Dubois?
December, with a normal high of 34°F and a normal low of 13°F. The warmest is July (79°F by day, 44°F at night).
Does it snow in Dubois?
Yes: 55 inches in a normal year, falling on 34 days with 0.1 inch or more, the most in April (9.9 inches).
What is the rainiest month in Dubois?
May, with 1.97 in of precipitation in a normal year; the driest is January with 0.25 in.
What plant hardiness zone is Dubois in?
The USDA's 2023 map puts Dubois in zone 4b in ZIP code 82513, the nearest ZIP area.
Nearby and next
- Wyoming climateThe statewide normals and every place in the state
- Burris, WY22 miles from this station, 42.9°F a year
- Darwin Ranch, WY27 miles from this station, 31.3°F a year
- Diversion Dam, WY43 miles from this station, 43.5°F a year
- Cora, WY43 miles from this station, 35.1°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made