Devils Tower #2, Wyoming climate: Climate normals at a NOAA weather station
Devils Tower #2's normal year runs from 8°F January nights to 85°F July afternoons, with 19.1 inches of precipitation and 49 inches of snow a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 6.9°C, January lows of −13°C, July highs of 30°C, 485 mm of precipitation a year.
- NOAA stationDevils Tower #2
- Station IDUSC00482466
- Location44.58°N 104.71°W
- Elevation3,862 ft (1,177 m)
On October 23, the normal high in Devils Tower #2 is 56°F and the normal low 28°F, and the chance of measurable rain or snow is 22%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Devils Tower #2.
- Jan 34° 8°
- Feb 37° 11°
- Mar 47° 21°
- Apr 57° 29°
- May 66° 39°
- Jun 76° 49°
- Jul 85° 55°
- Aug 85° 52°
- Sep 75° 42°
- Oct 60° 30°
- Nov 45° 19°
- Dec 35° 9°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
What is the weather like at Devils Tower #2 each month?
July is the warmest month, with normal highs of 85°F; January the coldest, with normal lows of 8°F. The most precipitation falls in June (3.22 in), the least in December (0.68 in).
| Month | High | Low | Mean | Precip. | Snow | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|---|
| January | 34°F | 8°F | 21.0°F | 0.72 | 8.8 | 8 | <1 | 31 | 9 h 10 min |
| February | 37°F | 11°F | 23.8°F | 0.76 | 9.3 | 8 | <1 | 28 | 10 h 30 min |
| March | 47°F | 21°F | 34.1°F | 1.13 | 7.3 | 7 | <1 | 28 | 11 h 50 min |
| April | 57°F | 29°F | 42.8°F | 1.98 | 5.3 | 9 | <1 | 21 | 13 h 30 min |
| May | 66°F | 39°F | 52.4°F | 2.93 | 0.4 | 11 | <1 | 9 | 14 h 50 min |
| June | 76°F | 49°F | 62.5°F | 3.22 | 0.0 | 11 | 2 | <1 | 15 h 30 min |
| July | 85°F | 55°F | 70.0°F | 2.14 | 0.0 | 8 | 10 | <1 | 15 h 20 min |
| August | 85°F | 52°F | 68.5°F | 1.90 | 0.0 | 6 | 10 | <1 | 14 h 10 min |
| September | 75°F | 42°F | 58.4°F | 1.32 | 0.0 | 7 | 3 | 5 | 12 h 40 min |
| October | 60°F | 30°F | 45.0°F | 1.53 | 1.8 | 7 | <1 | 20 | 11 h |
| November | 45°F | 19°F | 32.1°F | 0.78 | 6.3 | 6 | <1 | 28 | 9 h 40 min |
| December | 35°F | 9°F | 22.4°F | 0.68 | 9.6 | 6 | <1 | 31 | 8 h 50 min |
| Year (annual) | 59°F | 30°F | 44.4°F | 19.09 | 48.8 | 94 | 25 | 201 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. | Snow |
|---|---|---|---|---|---|
| January | 1°C | −13°C | −6.1°C | 18 mm | 22 cm |
| February | 3°C | −12°C | −4.6°C | 19 mm | 24 cm |
| March | 9°C | −6°C | 1.2°C | 29 mm | 19 cm |
| April | 14°C | −2°C | 6.0°C | 50 mm | 13 cm |
| May | 19°C | 4°C | 11.3°C | 74 mm | 1 cm |
| June | 25°C | 9°C | 16.9°C | 82 mm | 0 cm |
| July | 30°C | 13°C | 21.1°C | 54 mm | 0 cm |
| August | 29°C | 11°C | 20.3°C | 48 mm | 0 cm |
| September | 24°C | 6°C | 14.7°C | 34 mm | 0 cm |
| October | 15°C | −1°C | 7.2°C | 39 mm | 5 cm |
| November | 7°C | −7°C | 0.1°C | 20 mm | 16 cm |
| December | 2°C | −13°C | −5.3°C | 17 mm | 24 cm |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00482466; 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.
Which months are mildest at Devils Tower #2?
Normal highs sit between 65°F and 85°F in May, June, August and September. Of those, August has the fewest days with rain (6).
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 USC00482466.
When is the last frost at Devils Tower #2?
In Devils Tower #2, the last spring frost (32°F) comes after May 23 in half of years and after June 6 in one year in ten; the first autumn frost comes before September 20 in half of years and before September 4 in one year in ten.
Frost-free in half of yearsFrost in 1 to 9 years out of 10Frost most years
- Last spring frost, half of years after
- May 231 year in 10 after June 6; 9 in 10 after May 12
- First autumn frost, half of years before
- September 201 year in 10 before September 4; 9 in 10 before October 4
NOAA puts the median frost-free season at 118 days, and the season without a hard freeze (28°F) at 141 days.
A hard freeze (28°F) comes after May 12 in half of springs and before October 1 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Devils Tower #2 in zone 4b in ZIP code 82714, the nearest ZIP area.
Frost dates for every NOAA station in Wyoming · Frost dates by ZIP code
Source: NOAA NCEI 1991-2020 annual normals (frost probabilities), station USC00482466; USDA 2023 Plant Hardiness Zone Map, ZIP listings: PRISM Group, Oregon State University, https://prism.oregonstate.edu, accessed October 8, 2026. A 10% date means one year in ten has a frost after it in spring or before it in autumn.
How hot and how cold does it get at Devils Tower #2?
In a normal year in Devils Tower #2, 25 days a year reach 90°F (2 of them 100°F or more), 201 nights fall to 32°F or colder and 94 days bring measurable precipitation.
- Days at 90°F or more
- 25a normal year
- Days at 100°F or more
- 2a normal year
- Nights at 32°F or colder
- 201a normal year
- Days that stay below freezing
- 42high of 32°F or less
- Days with 0.01 inch of precipitation
- 94a normal year
- Days with 1 inch of snow or more
- 19a normal year
The highest temperature in this station's record (since 1959) is 108°F, on July 6, 1981; the lowest is −48°F, on December 24, 1983.
The wettest calendar year on that record is 1962, with 23.18 in; the snowiest season is 1970–71, with 93.2 inches.
Source: NOAA NCEI 1991-2020 annual normals, station USC00482466; records: ACIS (NOAA Regional Climate Centers), station USC00482466. Records use complete months only; a month missing more than three days is left out.
How sunny is it at Devils Tower #2?
Over a year 78% of the sunlight that would reach the ground under clear skies gets through the clouds at Devils Tower #2, 4.3 kWh per square metre a day. July is the sunniest month (87%) and April the cloudiest (71%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 74% | 1.9 |
| February | 75% | 2.9 |
| March | 74% | 4.0 |
| April | 71% | 5.0 |
| May | 72% | 6.0 |
| June | 81% | 7.0 |
| July | 87% | 7.2 |
| August | 87% | 6.2 |
| September | 82% | 4.7 |
| October | 74% | 3.1 |
| November | 74% | 2.1 |
| December | 71% | 1.6 |
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 many heating and cooling degree days does Devils Tower #2 record?
A normal year at Devils Tower #2 brings 7,912 heating degree days, 47% more than the median U.S. place (5,373), and 439 cooling degree days, 52% fewer than the median (908). Eight months need 300 or more heating degree days, a monthly mean of about 55°F or colder. For gardens and crops, NOAA counts 2,120 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 1,364 | 0 |
| February | 1,152 | 0 |
| March | 958 | 0 |
| April | 668 | 0 |
| May | 397 | 8 |
| June | 133 | 58 |
| July | 28 | 183 |
| August | 46 | 155 |
| September | 233 | 34 |
| October | 623 | 2 |
| November | 989 | 0 |
| December | 1,322 | 0 |
| Year (annual) | 7,912 | 439 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00482466. 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.
Have recent years at Devils Tower #2 been warmer than normal?
Over 38 complete years from 1960 to 2021, the station's annual mean temperature rose at a fitted 6.3°F per century (+0.35°C per decade). A fitted rate summarizes the whole record; single years swing well above and below it.
Source: trend: NOAA GHCN-Monthly v4. A year counts only with all twelve months complete.
How does Devils Tower #2's climate compare?
Devils Tower #2 is warmer than 34 of the 71 places with their own NOAA record in Wyoming, and wetter than 58. Across the 7,247 U.S. stations with normals, its annual mean of 44.4°F is warmer than 17%.
In the Köppen classification computed from these normals, Devils Tower #2 is Dfb: continental, no dry season, warm summer. 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 Devils Tower #2's climate
What is the coldest month at Devils Tower #2?
January, with a normal high of 34°F and a normal low of 8°F. The warmest is July (85°F by day, 55°F at night).
Does it snow at Devils Tower #2?
Yes: 49 inches in a normal year, falling on 32 days with 0.1 inch or more, the most in December (9.6 inches).
What is the rainiest month at Devils Tower #2?
June, with 3.22 in of precipitation in a normal year; the driest is December with 0.68 in.
What plant hardiness zone is Devils Tower #2 in?
The USDA's 2023 map puts Devils Tower #2 in zone 4b in ZIP code 82714, the nearest ZIP area.
How late can frost come at Devils Tower #2?
In half of years the last 32°F night comes after May 23; in one year in ten it comes after June 6. Waiting until June 6 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Wyoming climateThe statewide normals and every place in the state
- Hulett, WY9 miles from this station, 45.0°F a year
- Sundance, WY14 miles from this station, 41.1°F a year
- Moorcroft, WY27 miles from this station, 44.6°F a year
- Weston (1 mi E), WY29 miles from this station, 45.5°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made