Plevna, Montana climate: Normal weather by month, frost dates and records
Plevna's normal year runs from 6°F January nights to 86°F July afternoons, with 15.6 inches of precipitation and 34 inches of snow a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 6.8°C, January lows of −14°C, July highs of 30°C, 397 mm of precipitation a year.
- NOAA stationPlevna
- Station IDUSC00246601
- Location46.42°N 104.52°W
- Elevation2,780 ft (847 m)
- Population170
On October 22, the normal high in Plevna is 55°F and the normal low 29°F, and the chance of measurable rain or snow is 24%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Plevna.
- Jan 30° 6°
- Feb 33° 10°
- Mar 45° 20°
- Apr 57° 30°
- May 67° 41°
- Jun 77° 50°
- Jul 86° 56°
- Aug 86° 54°
- Sep 75° 44°
- Oct 58° 31°
- Nov 43° 19°
- Dec 32° 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 in Plevna each month?
July is the warmest month, with normal highs of 86°F; January the coldest, with normal lows of 6°F. The most precipitation falls in May (2.90 in), the least in December (0.43 in).
| Month | High | Low | Mean | Precip. | Snow | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|---|
| January | 30°F | 6°F | 18.0°F | 0.48 | 5.9 | 7 | <1 | 31 | 9 h |
| February | 33°F | 10°F | 21.8°F | 0.50 | 5.6 | 7 | <1 | 28 | 10 h 20 min |
| March | 45°F | 20°F | 32.8°F | 0.70 | 5.4 | 7 | <1 | 28 | 11 h 50 min |
| April | 57°F | 30°F | 43.4°F | 1.55 | 4.8 | 8 | <1 | 18 | 13 h 30 min |
| May | 67°F | 41°F | 53.7°F | 2.90 | 1.3 | 12 | <1 | 7 | 15 h |
| June | 77°F | 50°F | 63.4°F | 2.65 | 0.0 | 12 | 3 | <1 | 15 h 50 min |
| July | 86°F | 56°F | 71.2°F | 1.86 | 0.0 | 9 | 12 | <1 | 15 h 30 min |
| August | 86°F | 54°F | 69.8°F | 1.35 | 0.0 | 7 | 12 | <1 | 14 h 10 min |
| September | 75°F | 44°F | 59.6°F | 1.48 | 0.1 | 7 | 4 | 3 | 12 h 40 min |
| October | 58°F | 31°F | 44.7°F | 1.16 | 2.0 | 8 | <1 | 16 | 11 h |
| November | 43°F | 19°F | 31.0°F | 0.58 | 4.1 | 6 | <1 | 28 | 9 h 30 min |
| December | 32°F | 9°F | 20.5°F | 0.43 | 5.0 | 6 | <1 | 31 | 8 h 40 min |
| Year (annual) | 58°F | 31°F | 44.2°F | 15.64 | 34.2 | 96 | 30 | 188 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. | Snow |
|---|---|---|---|---|---|
| January | −1°C | −14°C | −7.8°C | 12 mm | 15 cm |
| February | 1°C | −12°C | −5.7°C | 13 mm | 14 cm |
| March | 7°C | −6°C | 0.4°C | 18 mm | 14 cm |
| April | 14°C | −1°C | 6.3°C | 39 mm | 12 cm |
| May | 19°C | 5°C | 12.1°C | 74 mm | 3 cm |
| June | 25°C | 10°C | 17.4°C | 67 mm | 0 cm |
| July | 30°C | 13°C | 21.8°C | 47 mm | 0 cm |
| August | 30°C | 12°C | 21.0°C | 34 mm | 0 cm |
| September | 24°C | 7°C | 15.3°C | 38 mm | 0 cm |
| October | 15°C | 0°C | 7.1°C | 29 mm | 5 cm |
| November | 6°C | −7°C | −0.6°C | 15 mm | 10 cm |
| December | 0°C | −13°C | −6.4°C | 11 mm | 13 cm |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00246601; 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 Plevna?
Normal highs sit between 65°F and 85°F in May, June 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 USC00246601.
When is the last frost in Plevna?
In Plevna, the last spring frost (32°F) comes after May 21 in half of years and after June 4 in one year in ten; the first autumn frost comes before September 20 in half of years and before September 5 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 211 year in 10 after June 4; 9 in 10 after May 9
- First autumn frost, half of years before
- September 201 year in 10 before September 5; 9 in 10 before October 5
NOAA puts the median frost-free season at 121 days, and the season without a hard freeze (28°F) at 141 days.
A hard freeze (28°F) comes after May 11 in half of springs and before September 30 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Plevna in zone 4a in ZIP code 59344, the nearest ZIP area. By the map's own method, the average of each year's coldest night over 1991-2020, Plevna's NOAA station is in zone 4a: the coldest night of a typical year reaches −30°F (28 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 USC00246601; 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 Plevna?
In a normal year in Plevna, 30 days a year reach 90°F (3 of them 100°F or more), 188 nights fall to 32°F or colder and 96 days bring measurable precipitation.
- Days at 90°F or more
- 30a normal year
- Days at 100°F or more
- 3a normal year
- Nights at 32°F or colder
- 188a normal year
- Days that stay below freezing
- 53high of 32°F or less
- Days with 0.01 inch of precipitation
- 96a normal year
- Days with 1 inch of snow or more
- 12a normal year
The highest temperature in this station's record (since 1910) is 111°F, on July 6, 1936; the lowest is −52°F, on January 12, 1916.
The wettest calendar year on that record is 1915, with 21.18 in; the snowiest season is 1932–33, with 73.8 inches.
Source: NOAA NCEI 1991-2020 annual normals, station USC00246601; records: ACIS (NOAA Regional Climate Centers), station USC00246601. Records use complete months only; a month missing more than three days is left out.
How sunny is Plevna?
Over a year 78% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Plevna, 4.1 kWh per square metre a day. July is the sunniest month (88%) and December the cloudiest (70%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 75% | 1.7 |
| February | 78% | 2.8 |
| March | 74% | 3.9 |
| April | 72% | 5.0 |
| May | 73% | 5.9 |
| June | 80% | 6.8 |
| July | 88% | 7.2 |
| August | 86% | 6.0 |
| September | 80% | 4.4 |
| October | 74% | 2.9 |
| November | 74% | 1.9 |
| December | 70% | 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 Plevna need?
A normal year in Plevna brings 8,074 heating degree days, 50% more than the median U.S. place (5,373), and 514 cooling degree days, 43% 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 2,256 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 1,455 | 0 |
| February | 1,211 | 0 |
| March | 998 | 0 |
| April | 648 | 0 |
| May | 358 | 9 |
| June | 112 | 64 |
| July | 20 | 212 |
| August | 37 | 184 |
| September | 206 | 44 |
| October | 631 | 2 |
| November | 1,019 | 0 |
| December | 1,379 | 0 |
| Year (annual) | 8,074 | 514 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00246601. 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 Plevna been warmer than normal lately?
2025 averaged 44.9°F, 0.7°F above the 1991-2020 normal of 44.2°F. 4 of the 5 complete years since 2021 ran warmer than the normal.
| Year | Mean | Against normal | Precip. | Snow |
|---|---|---|---|---|
| 2021 | 46.2°F | +2.0°F | 9.13 | 26.5 |
| 2022 | 43.1°F | −1.1°F | 16.97 | 71.1 |
| 2023 | 45.0°F | +0.8°F | 18.49 | 26.2 |
| 2024 | 46.5°F | +2.3°F | 11.37 | 24.4 |
| 2025 | 44.9°F | +0.7°F | 19.65 | 36.6 |
Over 74 complete years from 1913 to 2025, the station's annual mean temperature rose at a fitted 1.3°F per century (+0.07°C per decade). A fitted rate summarizes the whole record; single years swing well above and below it.
Source: observed years: ACIS, station USC00246601; trend: NOAA GHCN-Monthly v4. A year counts only with all twelve months complete.
How does Plevna's climate compare?
Plevna is warmer than 77 of the other 140 places with their own NOAA record in Montana, and wetter than 87. Across the 7,247 U.S. stations with normals, its annual mean of 44.2°F is warmer than 16%.
In the Köppen classification computed from these normals, Plevna 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 Plevna share this climate record?
Ismay 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.
- Ismay, MT21 people · 14 mi NW
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 Plevna's climate
What is the coldest month in Plevna?
January, with a normal high of 30°F and a normal low of 6°F. The warmest is July (86°F by day, 56°F at night).
Does it snow in Plevna?
Yes: 34 inches in a normal year, falling on 28 days with 0.1 inch or more, the most in January (5.9 inches).
What is the rainiest month in Plevna?
May, with 2.90 in of precipitation in a normal year; the driest is December with 0.43 in.
What plant hardiness zone is Plevna in?
The USDA's 2023 map puts Plevna in zone 4a in ZIP code 59344, the nearest ZIP area. By the same method at Plevna's NOAA station, the coldest night of a typical year reaches −30°F (28 years, 1991-2020): zone 4a.
How late can frost come in Plevna?
In half of years the last 32°F night comes after May 21; in one year in ten it comes after June 4. Waiting until June 4 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Montana climateThe statewide normals and every place in the state
- Baker, MT13 miles from this station, 43.5°F a year
- Carlyle (13 mi NW), MT25 miles from this station, 43.2°F a year
- Mildred (5 mi N), MT32 miles from this station, 44.1°F a year
- Ekalaka, MT37 miles from this station, 45.3°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made