Hulett, Wyoming climate: Normal weather by month, frost dates and records
Hulett's normal year runs from 11°F January nights to 86°F July afternoons, with 18.4 inches of precipitation and 49 inches of snow a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 7.2°C, January lows of −12°C, July highs of 30°C, 466 mm of precipitation a year.
- NOAA stationHulett
- Station IDUSC00484760
- Location44.69°N 104.60°W
- Elevation3,758 ft (1,145 m)
- Population341
On October 23, the normal high in Hulett is 56°F and the normal low 29°F, and the chance of measurable rain or snow is 20%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Hulett.
- Jan 34° 11°
- Feb 37° 13°
- Mar 47° 22°
- Apr 56° 30°
- May 66° 40°
- Jun 77° 49°
- Jul 86° 55°
- Aug 85° 53°
- Sep 75° 43°
- Oct 59° 32°
- Nov 45° 21°
- Dec 35° 12°
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 Hulett each month?
July is the warmest month, with normal highs of 86°F; January the coldest, with normal lows of 11°F. The most precipitation falls in May (3.06 in), the least in December (0.54 in).
| Month | High | Low | Mean | Precip. | Snow | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|---|
| January | 34°F | 11°F | 22.4°F | 0.59 | 7.6 | 6 | <1 | 30 | 9 h 10 min |
| February | 37°F | 13°F | 24.6°F | 0.63 | 7.9 | 6 | <1 | 27 | 10 h 20 min |
| March | 47°F | 22°F | 34.5°F | 1.09 | 9.7 | 7 | <1 | 28 | 11 h 50 min |
| April | 56°F | 30°F | 42.5°F | 2.09 | 6.2 | 8 | <1 | 20 | 13 h 30 min |
| May | 66°F | 40°F | 52.9°F | 3.06 | 1.0 | 11 | <1 | 6 | 14 h 50 min |
| June | 77°F | 49°F | 63.1°F | 3.00 | 0.0 | 11 | 3 | <1 | 15 h 30 min |
| July | 86°F | 55°F | 70.7°F | 2.07 | 0.0 | 8 | 12 | <1 | 15 h 20 min |
| August | 85°F | 53°F | 68.9°F | 1.27 | 0.0 | 7 | 10 | <1 | 14 h 10 min |
| September | 75°F | 43°F | 58.7°F | 1.18 | 0.1 | 6 | 4 | 3 | 12 h 40 min |
| October | 59°F | 32°F | 45.4°F | 2.00 | 3.3 | 7 | <1 | 17 | 11 h |
| November | 45°F | 21°F | 32.9°F | 0.83 | 6.8 | 6 | <1 | 27 | 9 h 40 min |
| December | 35°F | 12°F | 23.7°F | 0.54 | 6.6 | 5 | <1 | 31 | 8 h 50 min |
| Year (annual) | 59°F | 32°F | 45.0°F | 18.35 | 49.2 | 86 | 29 | 188 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. | Snow |
|---|---|---|---|---|---|
| January | 1°C | −12°C | −5.3°C | 15 mm | 19 cm |
| February | 3°C | −11°C | −4.1°C | 16 mm | 20 cm |
| March | 9°C | −6°C | 1.4°C | 28 mm | 25 cm |
| April | 13°C | −1°C | 5.8°C | 53 mm | 16 cm |
| May | 19°C | 4°C | 11.6°C | 78 mm | 3 cm |
| June | 25°C | 10°C | 17.3°C | 76 mm | 0 cm |
| July | 30°C | 13°C | 21.5°C | 53 mm | 0 cm |
| August | 30°C | 12°C | 20.5°C | 32 mm | 0 cm |
| September | 24°C | 6°C | 14.8°C | 30 mm | 0 cm |
| October | 15°C | 0°C | 7.4°C | 51 mm | 8 cm |
| November | 7°C | −6°C | 0.5°C | 21 mm | 17 cm |
| December | 2°C | −11°C | −4.6°C | 14 mm | 17 cm |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00484760; 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 Hulett?
Normal highs sit between 65°F and 85°F in May, June and September. Of those, September 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 USC00484760.
When is the last frost in Hulett?
In Hulett, the last spring frost (32°F) comes after May 17 in half of years and after May 30 in one year in ten; the first autumn frost comes before September 23 in half of years and before September 8 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 171 year in 10 after May 30; 9 in 10 after May 6
- First autumn frost, half of years before
- September 231 year in 10 before September 8; 9 in 10 before October 7
NOAA puts the median frost-free season at 128 days, and the season without a hard freeze (28°F) at 149 days.
A hard freeze (28°F) comes after May 6 in half of springs and before October 3 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Hulett in zone 5a in ZIP code 82711, 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 USC00484760; 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 in Hulett?
In a normal year in Hulett, 29 days a year reach 90°F (2 of them 100°F or more), 188 nights fall to 32°F or colder and 86 days bring measurable precipitation.
- Days at 90°F or more
- 29a normal year
- Days at 100°F or more
- 2a normal year
- Nights at 32°F or colder
- 188a normal year
- Days that stay below freezing
- 45high of 32°F or less
- Days with 0.01 inch of precipitation
- 86a normal year
- Days with 1 inch of snow or more
- 22a normal year
The highest temperature in this station's record (since 1941) is 107°F, on July 16, 2002; the lowest is −44°F, on January 24, 1949.
The wettest calendar year on that record is 1962, with 27.68 in; the snowiest season is 1970–71, with 134.3 inches.
Source: NOAA NCEI 1991-2020 annual normals, station USC00484760; records: ACIS (NOAA Regional Climate Centers), station USC00484760. Records use complete months only; a month missing more than three days is left out.
How sunny is Hulett?
Over a year 78% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Hulett, 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 much heating and cooling does Hulett need?
A normal year in Hulett brings 7,734 heating degree days, 44% more than the median U.S. place (5,373), and 486 cooling degree days, 46% 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 2,189 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 1,321 | 0 |
| February | 1,131 | 0 |
| March | 946 | 0 |
| April | 675 | 0 |
| May | 387 | 10 |
| June | 123 | 66 |
| July | 27 | 203 |
| August | 45 | 167 |
| September | 229 | 38 |
| October | 609 | 1 |
| November | 963 | 0 |
| December | 1,280 | 0 |
| Year (annual) | 7,734 | 486 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00484760. 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 Hulett been warmer than normal lately?
Over 35 complete years from 1943 to 2017, the station's annual mean temperature rose at a fitted 3.6°F per century (+0.20°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 Hulett's climate compare?
Hulett is warmer than 42 of the other 70 places with their own NOAA record in Wyoming, and wetter than 56. Across the 7,247 U.S. stations with normals, its annual mean of 45.0°F is warmer than 19%.
In the Köppen classification computed from these normals, Hulett 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 Hulett's climate
What is the coldest month in Hulett?
January, with a normal high of 34°F and a normal low of 11°F. The warmest is July (86°F by day, 55°F at night).
Does it snow in Hulett?
Yes: 49 inches in a normal year, falling on 24 days with 0.1 inch or more, the most in March (9.7 inches).
What is the rainiest month in Hulett?
May, with 3.06 in of precipitation in a normal year; the driest is December with 0.54 in.
What plant hardiness zone is Hulett in?
The USDA's 2023 map puts Hulett in zone 5a in ZIP code 82711, the nearest ZIP area.
How late can frost come in Hulett?
In half of years the last 32°F night comes after May 17; in one year in ten it comes after May 30. Waiting until May 30 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Wyoming climateThe statewide normals and every place in the state
- Devils Tower #2, WY9 miles from this station, 44.4°F a year
- Sundance, WY14 miles from this station, 41.1°F a year
- Colony, WY25 miles from this station, 46.6°F a year
- Bear Ridge, SD31 miles from this station, 46.7°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made