Brady 27 ENE (The Knees), Montana climate: Climate normals at a NOAA weather station
Brady 27 ENE (The Knees)'s normal year runs from 15°F January nights to 83°F July afternoons, with 12.5 inches of precipitation and 43 inches of snow a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 7.3°C, January lows of −10°C, July highs of 28°C, 317 mm of precipitation a year.
- NOAA stationBrady 27 ENE (The Knees)
- Station IDUSC00241081
- Location48.08°N 111.26°W
- Elevation3,325 ft (1,014 m)
On October 22, the normal high in Brady 27 ENE (The Knees) is 54°F and the normal low 32°F, and the chance of measurable rain or snow is 16%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Brady 27 ENE (The Knees).
- Jan 32° 15°
- Feb 37° 16°
- Mar 44° 23°
- Apr 55° 32°
- May 64° 41°
- Jun 72° 48°
- Jul 83° 54°
- Aug 83° 53°
- Sep 72° 45°
- Oct 58° 35°
- Nov 45° 26°
- Dec 34° 18°
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 Brady 27 ENE (The Knees) each month?
July is the warmest month, with normal highs of 83°F; January the coldest, with normal lows of 15°F. The most precipitation falls in June (2.67 in), the least in February (0.37 in).
| Month | High | Low | Mean | Precip. | Snow | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|---|
| January | 32°F | 15°F | 23.6°F | 0.41 | 7.5 | 4 | <1 | 27 | 8 h 50 min |
| February | 37°F | 16°F | 26.2°F | 0.37 | 6.1 | 4 | <1 | 25 | 10 h 10 min |
| March | 44°F | 23°F | 33.2°F | 0.48 | 7.4 | 6 | <1 | 24 | 11 h 50 min |
| April | 55°F | 32°F | 43.5°F | 1.24 | 5.6 | 8 | <1 | 13 | 13 h 40 min |
| May | 64°F | 41°F | 52.4°F | 1.99 | 1.5 | 10 | <1 | 3 | 15 h 10 min |
| June | 72°F | 48°F | 60.2°F | 2.67 | 0.0 | 11 | 2 | <1 | 16 h |
| July | 83°F | 54°F | 68.4°F | 1.22 | 0.0 | 7 | 9 | <1 | 15 h 40 min |
| August | 83°F | 53°F | 68.1°F | 1.13 | 0.0 | 6 | 9 | <1 | 14 h 20 min |
| September | 72°F | 45°F | 58.5°F | 1.14 | 0.1 | 6 | 2 | 1 | 12 h 40 min |
| October | 58°F | 35°F | 46.0°F | 0.87 | 2.0 | 6 | <1 | 13 | 11 h |
| November | 45°F | 26°F | 35.5°F | 0.48 | 6.1 | 3 | <1 | 20 | 9 h 20 min |
| December | 34°F | 18°F | 25.9°F | 0.49 | 6.2 | 5 | <1 | 27 | 8 h 20 min |
| Year (annual) | 57°F | 34°F | 45.1°F | 12.49 | 42.5 | 75 | 22 | 152 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. | Snow |
|---|---|---|---|---|---|
| January | 0°C | −10°C | −4.7°C | 10 mm | 19 cm |
| February | 3°C | −9°C | −3.2°C | 9 mm | 15 cm |
| March | 6°C | −5°C | 0.7°C | 12 mm | 19 cm |
| April | 13°C | 0°C | 6.4°C | 31 mm | 14 cm |
| May | 18°C | 5°C | 11.3°C | 51 mm | 4 cm |
| June | 22°C | 9°C | 15.7°C | 68 mm | 0 cm |
| July | 28°C | 12°C | 20.2°C | 31 mm | 0 cm |
| August | 29°C | 12°C | 20.1°C | 29 mm | 0 cm |
| September | 22°C | 7°C | 14.7°C | 29 mm | 0 cm |
| October | 14°C | 1°C | 7.8°C | 22 mm | 5 cm |
| November | 7°C | −3°C | 1.9°C | 12 mm | 15 cm |
| December | 1°C | −8°C | −3.4°C | 12 mm | 16 cm |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00241081; 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 Brady 27 ENE (The Knees)?
Normal highs sit between 65°F and 85°F in June, July, 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 USC00241081.
When is the last frost at Brady 27 ENE (The Knees)?
In Brady 27 ENE (The Knees), the last spring frost (32°F) comes after May 13 in half of years and after May 29 in one year in ten; the first autumn frost comes before September 29 in half of years and before September 16 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 131 year in 10 after May 29; 9 in 10 after April 30
- First autumn frost, half of years before
- September 291 year in 10 before September 16; 9 in 10 before October 11
NOAA puts the median frost-free season at 137 days, and the season without a hard freeze (28°F) at 158 days.
A hard freeze (28°F) comes after May 2 in half of springs and before October 6 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Brady 27 ENE (The Knees) in zone 4a in ZIP code 59456, the nearest ZIP area.
Frost dates for every NOAA station in Montana · Frost dates by ZIP code
Source: NOAA NCEI 1991-2020 annual normals (frost probabilities), station USC00241081; 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 Brady 27 ENE (The Knees)?
In a normal year in Brady 27 ENE (The Knees), 22 days a year reach 90°F (1 of them 100°F or more), 152 nights fall to 32°F or colder and 75 days bring measurable precipitation.
- Days at 90°F or more
- 22a normal year
- Days at 100°F or more
- 1a normal year
- Nights at 32°F or colder
- 152a normal year
- Days that stay below freezing
- 56high of 32°F or less
- Days with 0.01 inch of precipitation
- 75a normal year
- Days with 1 inch of snow or more
- 18a normal year
Source: NOAA NCEI 1991-2020 annual normals, station USC00241081.
How sunny is it at Brady 27 ENE (The Knees)?
Over a year 76% of the sunlight that would reach the ground under clear skies gets through the clouds at Brady 27 ENE (The Knees), 3.9 kWh per square metre a day. July is the sunniest month (87%) and December the cloudiest (62%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 67% | 1.3 |
| February | 69% | 2.3 |
| March | 70% | 3.5 |
| April | 72% | 4.9 |
| May | 73% | 5.9 |
| June | 78% | 6.6 |
| July | 87% | 7.1 |
| August | 85% | 5.8 |
| September | 79% | 4.2 |
| October | 73% | 2.6 |
| November | 67% | 1.5 |
| December | 62% | 1.0 |
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 Brady 27 ENE (The Knees) record?
A normal year at Brady 27 ENE (The Knees) brings 7,595 heating degree days, 41% more than the median U.S. place (5,373), and 374 cooling degree days, 59% 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 2,014 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 1,283 | 0 |
| February | 1,086 | 0 |
| March | 986 | 0 |
| April | 645 | 0 |
| May | 397 | 5 |
| June | 172 | 26 |
| July | 50 | 155 |
| August | 54 | 148 |
| September | 230 | 35 |
| October | 594 | 5 |
| November | 885 | 0 |
| December | 1,213 | 0 |
| Year (annual) | 7,595 | 374 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00241081. 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 Brady 27 ENE (The Knees) been warmer than normal?
2022 averaged 43.2°F, 1.9°F below the 1991-2020 normal of 45.1°F. 0 of the 2 complete years since 2021 ran warmer than the normal.
| Year | Mean | Against normal | Precip. | Snow |
|---|---|---|---|---|
| 2021 | 44.9°F | −0.2°F | 8.10 | 24.5 |
| 2022 | 43.2°F | −1.9°F | 12.36 | 54.7 |
Source: observed years: ACIS, station USC00241081. A year counts only with all twelve months complete.
How does Brady 27 ENE (The Knees)'s climate compare?
Brady 27 ENE (The Knees) is warmer than 93 of the 141 places with their own NOAA record in Montana, and wetter than 24. Across the 7,247 U.S. stations with normals, its annual mean of 45.1°F is warmer than 20%.
In the Köppen classification computed from these normals, Brady 27 ENE (The Knees) 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.
Which places near Brady 27 ENE (The Knees) share this climate record?
Twin Hills Colony has no NOAA station with 1991-2020 normals of its own, and this station is the nearest full record. A place's own climate can differ from these figures, by several degrees where it sits much higher or lower than the station, nearer the coast, or inside a large city's heat; for the larger places the next nearest records are named with their yearly mean, so the spread around them is visible, and places of 50,000 or more have their own page with NOAA's gridded normals.
- Twin Hills Colony, MT22 people · 10 mi SE
Source: Census Bureau 2024 Gazetteer (place centers) and Vintage 2024 population estimates. Distance and direction from the station to each place's center.
Questions about Brady 27 ENE (The Knees)'s climate
What is the coldest month at Brady 27 ENE (The Knees)?
January, with a normal high of 32°F and a normal low of 15°F. The warmest is July (83°F by day, 54°F at night).
Does it snow at Brady 27 ENE (The Knees)?
Yes: 43 inches in a normal year, falling on 20 days with 0.1 inch or more, the most in January (7.5 inches).
What is the rainiest month at Brady 27 ENE (The Knees)?
June, with 2.67 in of precipitation in a normal year; the driest is February with 0.37 in.
What plant hardiness zone is Brady 27 ENE (The Knees) in?
The USDA's 2023 map puts Brady 27 ENE (The Knees) in zone 4a in ZIP code 59456, the nearest ZIP area.
How late can frost come at Brady 27 ENE (The Knees)?
In half of years the last 32°F night comes after May 13; in one year in ten it comes after May 29. Waiting until May 29 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Montana climateThe statewide normals and every place in the state
- Tiber Dam, MT18 miles from this station, 44.6°F a year
- Carter (14 mi W), MT20 miles from this station, 43.9°F a year
- Fort Benton, MT32 miles from this station, 45.4°F a year
- Conrad, MT32 miles from this station, 43.7°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made