Martinsdale, Montana climate: Normal weather by month, frost dates and records
Martinsdale's normal year runs from 16°F December nights to 82°F July afternoons, with 13.5 inches of precipitation and 43 inches of snow a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 6.5°C, December lows of −9°C, July highs of 28°C, 344 mm of precipitation a year.
- NOAA stationMartinsdale (3 mi NNW)
- Station IDUSC00245387
- Location46.50°N 110.34°W
- Elevation4,800 ft (1,463 m)
- Population (census place)34
On October 23, the normal high in Martinsdale is 55°F and the normal low 28°F, and the chance of measurable rain or snow is 14%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Martinsdale.
- Jan 37° 16°
- Feb 39° 15°
- Mar 47° 22°
- Apr 56° 28°
- May 65° 35°
- Jun 73° 43°
- Jul 82° 47°
- Aug 83° 45°
- Sep 72° 38°
- Oct 58° 30°
- Nov 44° 22°
- Dec 36° 16°
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 Martinsdale each month?
July is the warmest month, with normal highs of 82°F; December the coldest, with normal lows of 16°F. The most precipitation falls in June (2.59 in), the least in February (0.34 in).
| Month | High | Low | Mean | Precip. | Snow | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|---|
| January | 37°F | 16°F | 26.4°F | 0.49 | 7.4 | 5 | <1 | 29 | 9 h |
| February | 39°F | 15°F | 26.9°F | 0.34 | 4.4 | 4 | <1 | 26 | 10 h 20 min |
| March | 47°F | 22°F | 34.3°F | 0.57 | 7.8 | 5 | <1 | 27 | 11 h 50 min |
| April | 56°F | 28°F | 41.6°F | 1.34 | 6.6 | 7 | <1 | 22 | 13 h 30 min |
| May | 65°F | 35°F | 49.9°F | 2.58 | 1.3 | 10 | <1 | 10 | 15 h |
| June | 73°F | 43°F | 57.8°F | 2.59 | 0.0 | 11 | <1 | 1 | 15 h 50 min |
| July | 82°F | 47°F | 64.8°F | 1.39 | 0.0 | 8 | 6 | <1 | 15 h 30 min |
| August | 83°F | 45°F | 63.9°F | 1.16 | 0.1 | 7 | 4 | 1 | 14 h 20 min |
| September | 72°F | 38°F | 55.3°F | 0.97 | 0.5 | 5 | 1 | 7 | 12 h 40 min |
| October | 58°F | 30°F | 44.3°F | 0.77 | 3.2 | 5 | <1 | 18 | 11 h |
| November | 44°F | 22°F | 33.0°F | 0.78 | 6.0 | 4 | <1 | 25 | 9 h 30 min |
| December | 36°F | 16°F | 26.0°F | 0.55 | 6.1 | 4 | <1 | 29 | 8 h 40 min |
| Year (annual) | 58°F | 30°F | 43.7°F | 13.53 | 43.4 | 73 | 11 | 195 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. | Snow |
|---|---|---|---|---|---|
| January | 3°C | −9°C | −3.1°C | 12 mm | 19 cm |
| February | 4°C | −9°C | −2.8°C | 9 mm | 11 cm |
| March | 8°C | −6°C | 1.3°C | 14 mm | 20 cm |
| April | 13°C | −2°C | 5.3°C | 34 mm | 17 cm |
| May | 18°C | 2°C | 9.9°C | 66 mm | 3 cm |
| June | 23°C | 6°C | 14.3°C | 66 mm | 0 cm |
| July | 28°C | 8°C | 18.2°C | 35 mm | 0 cm |
| August | 28°C | 7°C | 17.7°C | 29 mm | 0 cm |
| September | 22°C | 4°C | 12.9°C | 25 mm | 1 cm |
| October | 15°C | −1°C | 6.8°C | 20 mm | 8 cm |
| November | 7°C | −6°C | 0.6°C | 20 mm | 15 cm |
| December | 2°C | −9°C | −3.3°C | 14 mm | 15 cm |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00245387; 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 Martinsdale?
Normal highs sit between 65°F and 85°F in June, July, August and September. Of those, September has the fewest days with rain (5).
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 USC00245387.
When is the last frost in Martinsdale?
In Martinsdale, the last spring frost (32°F) comes after June 3 in half of years and after June 25 in one year in ten; the first autumn frost comes before September 8 in half of years and before August 23 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
- June 31 year in 10 after June 25; 9 in 10 after May 20
- First autumn frost, half of years before
- September 81 year in 10 before August 23; 9 in 10 before September 23
NOAA puts the median frost-free season at 94 days, and the season without a hard freeze (28°F) at 126 days.
A hard freeze (28°F) comes after May 18 in half of springs and before September 23 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Martinsdale in zone 4b in ZIP code 59053, the nearest ZIP area. By the map's own method, the average of each year's coldest night over 1991-2020, Martinsdale's NOAA station is in zone 4b: the coldest night of a typical year reaches −25°F (18 complete years).
Frost dates for every NOAA station in Montana · Frost dates by ZIP code
Source: NOAA NCEI 1991-2020 annual normals (frost probabilities), station USC00245387; USDA 2023 Plant Hardiness Zone Map, ZIP listings: PRISM Group, Oregon State University, https://prism.oregonstate.edu, accessed October 8, 2026; the station zone: ACIS daily lows, 1991-2020. 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 Martinsdale?
In a normal year in Martinsdale, 11 days a year reach 90°F, 195 nights fall to 32°F or colder and 73 days bring measurable precipitation.
- Days at 90°F or more
- 11a normal year
- Days at 100°F or more
- fewer than 1a normal year
- Nights at 32°F or colder
- 195a normal year
- Days that stay below freezing
- 35high of 32°F or less
- Days with 0.01 inch of precipitation
- 73a normal year
- Days with 1 inch of snow or more
- 17a normal year
The highest temperature in this station's record (since 1893) is 104°F, on June 21, 1900; the lowest is −42°F, on December 24, 1983.
The wettest calendar year on that record is 1997, with 18.11 in; the snowiest season is 1948–49, with 115.8 inches.
Source: NOAA NCEI 1991-2020 annual normals, station USC00245387; records: ACIS (NOAA Regional Climate Centers), station USC00245387. Records use complete months only; a month missing more than three days is left out.
How sunny is Martinsdale?
Over a year 75% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Martinsdale, 4.0 kWh per square metre a day. July is the sunniest month (85%) and December the cloudiest (64%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 73% | 1.7 |
| February | 76% | 2.8 |
| March | 72% | 3.9 |
| April | 68% | 4.8 |
| May | 69% | 5.7 |
| June | 74% | 6.5 |
| July | 85% | 7.2 |
| August | 84% | 6.0 |
| September | 78% | 4.4 |
| October | 71% | 2.8 |
| November | 66% | 1.7 |
| December | 64% | 1.3 |
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 Martinsdale need?
A normal year in Martinsdale brings 7,878 heating degree days, 47% more than the median U.S. place (5,373), and 136 cooling degree days, 85% 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 1,486 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 1,198 | 0 |
| February | 1,065 | 0 |
| March | 952 | 0 |
| April | 704 | 0 |
| May | 467 | 1 |
| June | 225 | 9 |
| July | 74 | 68 |
| August | 85 | 52 |
| September | 296 | 6 |
| October | 642 | 0 |
| November | 962 | 0 |
| December | 1,209 | 0 |
| Year (annual) | 7,878 | 136 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00245387. 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.
How does Martinsdale's climate compare?
Martinsdale is warmer than 64 of the other 140 places with their own NOAA record in Montana, and wetter than 43. Across the 7,247 U.S. stations with normals, its annual mean of 43.7°F is warmer than 14%.
In the Köppen classification computed from these normals, Martinsdale 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 Martinsdale share this climate record?
Martinsdale 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.
- Martinsdale Colony, MT36 people · 4 mi E
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 Martinsdale's climate
What is the coldest month in Martinsdale?
December, with a normal high of 36°F and a normal low of 16°F. The warmest is July (82°F by day, 47°F at night).
Does it snow in Martinsdale?
Yes: 43 inches in a normal year, falling on 25 days with 0.1 inch or more, the most in March (7.8 inches).
What is the rainiest month in Martinsdale?
June, with 2.59 in of precipitation in a normal year; the driest is February with 0.34 in.
What plant hardiness zone is Martinsdale in?
The USDA's 2023 map puts Martinsdale in zone 4b in ZIP code 59053, the nearest ZIP area. By the same method at Martinsdale's NOAA station, the coldest night of a typical year reaches −25°F (18 years, 1991-2020): zone 4b.
How late can frost come in Martinsdale?
In half of years the last 32°F night comes after June 3; in one year in ten it comes after June 25. Waiting until June 25 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Montana climateThe statewide normals and every place in the state
- Lennep (5 mi SW), MT16 miles from this station, 38.7°F a year
- Harlowton, MT24 miles from this station, 43.8°F a year
- Lewistown (42 mi WSW), MT27 miles from this station, 40.6°F a year
- White Sulphur Springs, MT27 miles from this station, 42.1°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made