Glendive, Montana climate: Normal weather by month, frost dates and records
Glendive's normal year runs from 9°F January nights to 88°F July afternoons, with 14.9 inches of precipitation and 23 inches of snow a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 8.1°C, January lows of −13°C, July highs of 31°C, 378 mm of precipitation a year.
- NOAA stationGlendive
- Station IDUSC00243581
- Location47.11°N 104.72°W
- Elevation2,075 ft (633 m)
- Population4,760
On October 22, the normal high in Glendive is 56°F and the normal low 33°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 Glendive.
- Jan 29° 9°
- Feb 34° 13°
- Mar 46° 23°
- Apr 59° 34°
- May 69° 45°
- Jun 79° 54°
- Jul 88° 60°
- Aug 87° 58°
- Sep 76° 48°
- Oct 60° 36°
- Nov 44° 24°
- Dec 32° 13°
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 Glendive each month?
July is the warmest month, with normal highs of 88°F; January the coldest, with normal lows of 9°F. The most precipitation falls in May (2.57 in), the least in February (0.36 in).
| Month | High | Low | Mean | Precip. | Snow | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|---|
| January | 29°F | 9°F | 19.1°F | 0.42 | 4.0 | 6 | <1 | 30 | 8 h 50 min |
| February | 34°F | 13°F | 23.1°F | 0.36 | 5.3 | 6 | <1 | 27 | 10 h 20 min |
| March | 46°F | 23°F | 34.6°F | 0.52 | 3.1 | 6 | <1 | 26 | 11 h 50 min |
| April | 59°F | 34°F | 46.5°F | 1.50 | 2.0 | 8 | <1 | 13 | 13 h 30 min |
| May | 69°F | 45°F | 56.9°F | 2.57 | 0.5 | 11 | 1 | 2 | 15 h |
| June | 79°F | 54°F | 66.4°F | 2.40 | 0.0 | 12 | 4 | <1 | 15 h 50 min |
| July | 88°F | 60°F | 74.0°F | 2.20 | 0.0 | 9 | 14 | <1 | 15 h 30 min |
| August | 87°F | 58°F | 72.5°F | 1.53 | 0.0 | 7 | 14 | <1 | 14 h 20 min |
| September | 76°F | 48°F | 62.1°F | 1.43 | 0.0 | 7 | 4 | 1 | 12 h 40 min |
| October | 60°F | 36°F | 47.7°F | 1.09 | 1.4 | 8 | <1 | 11 | 11 h |
| November | 44°F | 24°F | 33.6°F | 0.46 | 2.0 | 5 | <1 | 25 | 9 h 20 min |
| December | 32°F | 13°F | 22.7°F | 0.41 | 4.3 | 6 | <1 | 30 | 8 h 30 min |
| Year (annual) | 59°F | 35°F | 46.6°F | 14.89 | 22.6 | 91 | 38 | 166 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. | Snow |
|---|---|---|---|---|---|
| January | −2°C | −13°C | −7.2°C | 11 mm | 10 cm |
| February | 1°C | −11°C | −4.9°C | 9 mm | 13 cm |
| March | 8°C | −5°C | 1.4°C | 13 mm | 8 cm |
| April | 15°C | 1°C | 8.1°C | 38 mm | 5 cm |
| May | 21°C | 7°C | 13.8°C | 65 mm | 1 cm |
| June | 26°C | 12°C | 19.1°C | 61 mm | 0 cm |
| July | 31°C | 16°C | 23.3°C | 56 mm | 0 cm |
| August | 31°C | 14°C | 22.5°C | 39 mm | 0 cm |
| September | 25°C | 9°C | 16.7°C | 36 mm | 0 cm |
| October | 15°C | 2°C | 8.7°C | 28 mm | 4 cm |
| November | 6°C | −5°C | 0.9°C | 12 mm | 5 cm |
| December | 0°C | −10°C | −5.2°C | 10 mm | 11 cm |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00243581; 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 Glendive?
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 USC00243581.
When is the last frost in Glendive?
In Glendive, the last spring frost (32°F) comes after May 3 in half of years and after May 16 in one year in ten; the first autumn frost comes before October 4 in half of years and before September 22 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 31 year in 10 after May 16; 9 in 10 after April 19
- First autumn frost, half of years before
- October 41 year in 10 before September 22; 9 in 10 before October 17
NOAA puts the median frost-free season at 153 days, and the season without a hard freeze (28°F) at 172 days.
A hard freeze (28°F) comes after April 24 in half of springs and before October 13 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Glendive in zone 4a in ZIP code 59330, the nearest ZIP area. By the map's own method, the average of each year's coldest night over 1991-2020, Glendive's NOAA station is in zone 4a: the coldest night of a typical year reaches −26°F (27 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 USC00243581; 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 Glendive?
In a normal year in Glendive, 38 days a year reach 90°F (6 of them 100°F or more), 166 nights fall to 32°F or colder and 91 days bring measurable precipitation.
- Days at 90°F or more
- 38a normal year
- Days at 100°F or more
- 6a normal year
- Nights at 32°F or colder
- 166a normal year
- Days that stay below freezing
- 52high of 32°F or less
- Days with 0.01 inch of precipitation
- 91a normal year
- Days with 1 inch of snow or more
- 12a normal year
The highest temperature in this station's record (since 1893) is 117°F, on July 20, 1893; the lowest is −50°F, on February 16, 1936.
The wettest calendar year on that record is 1916, with 26.02 in; the snowiest season is 1895–96, with 75.0 inches.
Source: NOAA NCEI 1991-2020 annual normals, station USC00243581; records: ACIS (NOAA Regional Climate Centers), station USC00243581. Records use complete months only; a month missing more than three days is left out.
How sunny is Glendive?
Over a year 78% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Glendive, 4.0 kWh per square metre a day. July is the sunniest month (87%) and December the cloudiest (70%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 77% | 1.7 |
| February | 79% | 2.7 |
| March | 75% | 3.8 |
| April | 72% | 4.9 |
| May | 74% | 5.9 |
| June | 79% | 6.7 |
| July | 87% | 7.0 |
| August | 85% | 5.8 |
| September | 79% | 4.2 |
| October | 74% | 2.7 |
| November | 72% | 1.7 |
| December | 70% | 1.2 |
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 Glendive need?
A normal year in Glendive brings 7,417 heating degree days, 38% more than the median U.S. place (5,373), and 751 cooling degree days, 17% fewer than the median (908). Seven months need 300 or more heating degree days, a monthly mean of about 55°F or colder. For gardens and crops, NOAA counts 2,733 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 1,423 | 0 |
| February | 1,172 | 0 |
| March | 943 | 0 |
| April | 555 | 2 |
| May | 274 | 23 |
| June | 67 | 109 |
| July | 12 | 291 |
| August | 21 | 253 |
| September | 156 | 69 |
| October | 541 | 5 |
| November | 942 | 0 |
| December | 1,313 | 0 |
| Year (annual) | 7,417 | 751 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00243581. 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 Glendive been warmer than normal lately?
2025 averaged 46.3°F, 0.3°F below the 1991-2020 normal of 46.6°F. 1 of the 4 complete years since 2022 ran warmer than the normal.
| Year | Mean | Against normal | Precip. | Snow |
|---|---|---|---|---|
| 2022 | 46.4°F | −0.2°F | 15.41 | 44.1 |
| 2023 | 45.4°F | −1.2°F | 18.47 | 27.3 |
| 2024 | 47.4°F | +0.8°F | 12.29 | 15.8 |
| 2025 | 46.3°F | −0.3°F | 16.11 | 18.9 |
Over 102 complete years from 1890 to 2025, the station's annual mean temperature rose at a fitted 2.6°F per century (+0.15°C per decade). A fitted rate summarizes the whole record; single years swing well above and below it.
Source: observed years: ACIS, station USC00243581; trend: NOAA GHCN-Monthly v4. A year counts only with all twelve months complete.
How does Glendive's climate compare?
Glendive is warmer than 123 of the other 140 places with their own NOAA record in Montana, and wetter than 65. Across the 7,247 U.S. stations with normals, its annual mean of 46.6°F is warmer than 26%.
In the Köppen classification computed from these normals, Glendive 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 Glendive share this climate record?
3 places have no NOAA station with 1991-2020 normals of their 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.
- West Glendive, MT1,968 people · 2 mi W
- Bloomfield, MT7 people · 23 mi NW
- Lindsay, MT5 people · 22 mi W
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 Glendive's climate
What is the coldest month in Glendive?
January, with a normal high of 29°F and a normal low of 9°F. The warmest is July (88°F by day, 60°F at night).
Does it snow in Glendive?
Yes: 23 inches in a normal year, falling on 19 days with 0.1 inch or more, the most in February (5.3 inches).
What is the rainiest month in Glendive?
May, with 2.57 in of precipitation in a normal year; the driest is February with 0.36 in.
What plant hardiness zone is Glendive in?
The USDA's 2023 map puts Glendive in zone 4a in ZIP code 59330, the nearest ZIP area. By the same method at Glendive's NOAA station, the coldest night of a typical year reaches −26°F (27 years, 1991-2020): zone 4a.
How late can frost come in Glendive?
In half of years the last 32°F night comes after May 3; in one year in ten it comes after May 16. Waiting until May 16 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Montana climateThe statewide normals and every place in the state
- Mildred (5 mi N), MT27 miles from this station, 44.1°F a year
- Wibaux, MT27 miles from this station, 42.0°F a year
- Savage, MT30 miles from this station, 45.8°F a year
- Carlyle (13 mi NW), MT32 miles from this station, 43.2°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made