Jordan, Montana climate: Normal weather by month, frost dates and records
Jordan's normal year runs from 5°F January nights to 88°F July afternoons, with 12.9 inches of precipitation a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 6.8°C, January lows of −15°C, July highs of 31°C, 329 mm of precipitation a year.
- NOAA stationJordan Airport
- Station IDUSW00094051
- Location47.33°N 106.95°W
- Elevation2,662 ft (811 m)
- Population357
On October 23, the normal high in Jordan is 55°F and the normal low 27°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 Jordan.
- Jan 31° 5°
- Feb 35° 10°
- Mar 47° 21°
- Apr 58° 30°
- May 68° 40°
- Jun 77° 49°
- Jul 88° 55°
- Aug 86° 53°
- Sep 75° 42°
- Oct 59° 30°
- Nov 45° 17°
- Dec 34° 8°
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 Jordan each month?
July is the warmest month, with normal highs of 88°F; January the coldest, with normal lows of 5°F. The most precipitation falls in June (2.53 in), the least in December (0.37 in).
| Month | High | Low | Mean | Precip. | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|
| January | 31°F | 5°F | 17.8°F | 0.43 | 7 | <1 | 31 | 8 h 50 min |
| February | 35°F | 10°F | 22.4°F | 0.43 | 7 | <1 | 28 | 10 h 10 min |
| March | 47°F | 21°F | 33.5°F | 0.45 | 6 | <1 | 28 | 11 h 50 min |
| April | 58°F | 30°F | 43.7°F | 1.35 | 8 | <1 | 19 | 13 h 30 min |
| May | 68°F | 40°F | 53.5°F | 2.00 | 10 | <1 | 7 | 15 h |
| June | 77°F | 49°F | 63.1°F | 2.53 | 11 | 3 | <1 | 15 h 50 min |
| July | 88°F | 55°F | 71.3°F | 1.59 | 8 | 15 | <1 | 15 h 40 min |
| August | 86°F | 53°F | 69.7°F | 1.08 | 7 | 13 | <1 | 14 h 20 min |
| September | 75°F | 42°F | 58.4°F | 1.17 | 7 | 4 | 3 | 12 h 40 min |
| October | 59°F | 30°F | 44.5°F | 1.04 | 8 | <1 | 19 | 11 h |
| November | 45°F | 17°F | 31.0°F | 0.51 | 5 | <1 | 28 | 9 h 20 min |
| December | 34°F | 8°F | 21.2°F | 0.37 | 6 | <1 | 31 | 8 h 30 min |
| Year (annual) | 58°F | 30°F | 44.2°F | 12.95 | 90 | 34 | 193 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. |
|---|---|---|---|---|
| January | −1°C | −15°C | −7.9°C | 11 mm |
| February | 2°C | −12°C | −5.3°C | 11 mm |
| March | 8°C | −6°C | 0.8°C | 11 mm |
| April | 14°C | −1°C | 6.5°C | 34 mm |
| May | 20°C | 4°C | 11.9°C | 51 mm |
| June | 25°C | 10°C | 17.3°C | 64 mm |
| July | 31°C | 13°C | 21.8°C | 40 mm |
| August | 30°C | 12°C | 20.9°C | 27 mm |
| September | 24°C | 6°C | 14.7°C | 30 mm |
| October | 15°C | −1°C | 6.9°C | 26 mm |
| November | 7°C | −8°C | −0.6°C | 13 mm |
| December | 1°C | −13°C | −6.0°C | 9 mm |
NOAA publishes no 1991-2020 snowfall normal for this station. The nearest record that keeps one, Cohagen (24 miles away), gets 25 inches of snow in a normal year; elevation and distance can change that.
Source: NOAA NCEI 1991-2020 monthly normals, station USW00094051; 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 Jordan?
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 USW00094051.
When is the last frost in Jordan?
In Jordan, the last spring frost (32°F) comes after May 18 in half of years and after May 31 in one year in ten; the first autumn frost comes before September 20 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 181 year in 10 after May 31; 9 in 10 after May 6
- First autumn frost, half of years before
- September 201 year in 10 before September 8; 9 in 10 before October 1
NOAA puts the median frost-free season at 123 days, and the season without a hard freeze (28°F) at 143 days.
A hard freeze (28°F) comes after May 8 in half of springs and before September 29 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Jordan in zone 4a in ZIP code 59337, the nearest ZIP area. By the map's own method, the average of each year's coldest night over 1991-2020, Jordan's NOAA station is in zone 3b: the coldest night of a typical year reaches −31°F (21 complete years); the map interpolates between stations and terrain, so the station and the ZIP area can differ by half a zone.
Frost dates for every NOAA station in Montana · Frost dates by ZIP code
Source: NOAA NCEI 1991-2020 annual normals (frost probabilities), station USW00094051; 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 Jordan?
In a normal year in Jordan, 34 days a year reach 90°F (4 of them 100°F or more), 193 nights fall to 32°F or colder and 90 days bring measurable precipitation.
- Days at 90°F or more
- 34a normal year
- Days at 100°F or more
- 4a normal year
- Nights at 32°F or colder
- 193a normal year
- Days that stay below freezing
- 51high of 32°F or less
- Days with 0.01 inch of precipitation
- 90a normal year
The highest temperature in this station's record (since 1997) is 110°F, on June 15, 2021; the lowest is −43°F, on January 14, 2024.
The wettest calendar year on that record is 2019, with 19.21 in.
Source: NOAA NCEI 1991-2020 annual normals, station USW00094051; records: ACIS (NOAA Regional Climate Centers), station USW00094051. Records use complete months only; a month missing more than three days is left out.
How sunny is Jordan?
Over a year 77% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Jordan, 4.0 kWh per square metre a day. July is the sunniest month (88%) and December the cloudiest (64%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 68% | 1.4 |
| February | 72% | 2.4 |
| March | 70% | 3.6 |
| April | 72% | 4.9 |
| May | 74% | 6.0 |
| June | 79% | 6.7 |
| July | 88% | 7.1 |
| August | 86% | 5.9 |
| September | 79% | 4.3 |
| October | 74% | 2.8 |
| November | 71% | 1.7 |
| December | 64% | 1.1 |
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 Jordan need?
A normal year in Jordan brings 8,043 heating degree days, 50% more than the median U.S. place (5,373), and 491 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 2,202 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 1,463 | 0 |
| February | 1,194 | 0 |
| March | 975 | 0 |
| April | 638 | 0 |
| May | 363 | 8 |
| June | 113 | 55 |
| July | 16 | 211 |
| August | 37 | 183 |
| September | 230 | 32 |
| October | 637 | 2 |
| November | 1,019 | 0 |
| December | 1,358 | 0 |
| Year (annual) | 8,043 | 491 |
Source: NOAA NCEI 1991-2020 monthly normals, station USW00094051. 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 Jordan been warmer than normal lately?
2025 averaged 45.7°F, 1.5°F above the 1991-2020 normal of 44.2°F. 5 of the 5 complete years since 2021 ran warmer than the normal.
| Year | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 47.1°F | +2.9°F | 8.90 |
| 2022 | 45.8°F | +1.6°F | 12.48 |
| 2023 | 47.0°F | +2.8°F | 13.34 |
| 2024 | 47.3°F | +3.1°F | 14.62 |
| 2025 | 45.7°F | +1.5°F | 17.82 |
Source: observed years: ACIS, station USW00094051. A year counts only with all twelve months complete.
How does Jordan's climate compare?
Jordan is warmer than 77 of the other 140 places with their own NOAA record in Montana, and wetter than 30. 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, Jordan 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.
What do Jordan's other NOAA stations record?
One more NOAA station keeps 1991-2020 normals in or near Jordan. This page uses Jordan Airport; the other differs by site and elevation:
| Station | From this station | Elevation | Year | Jan low | Jul high | Precip. | Snow | Last frost |
|---|---|---|---|---|---|---|---|---|
| Jordan station USC00244522 | 2 mi SE | 2,620 ft | 43.6°F | 5°F | 87°F | 13.4 | – | May 21 |
Source: NOAA NCEI 1991-2020 normals for each station. Last frost: the median last spring date of 32°F.
Questions about Jordan's climate
What is the coldest month in Jordan?
January, with a normal high of 31°F and a normal low of 5°F. The warmest is July (88°F by day, 55°F at night).
Does it snow in Jordan?
Yes. NOAA publishes no 1991-2020 snowfall normal for Jordan's NOAA station; the nearest record that keeps one, Cohagen (24 miles away), records 25 inches of snow in a normal year.
What is the rainiest month in Jordan?
June, with 2.53 in of precipitation in a normal year; the driest is December with 0.37 in.
What plant hardiness zone is Jordan in?
The USDA's 2023 map puts Jordan in zone 4a in ZIP code 59337, the nearest ZIP area. By the same method at Jordan's NOAA station, the coldest night of a typical year reaches −31°F (21 years, 1991-2020): zone 3b.
How late can frost come in Jordan?
In half of years the last 32°F night comes after May 18; in one year in ten it comes after May 31. Waiting until May 31 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Montana climateThe statewide normals and every place in the state
- Cohagen, MT24 miles from this station, 43.6°F a year
- Mosby (4 mi ENE), MT46 miles from this station, 48.1°F a year
- Rock Springs, MT48 miles from this station, 44.3°F a year
- Brockway, MT52 miles from this station, 44.0°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made