Few U.S. towns have colder winter nights than Jordan
July afternoons average 87°. Precipitation is light here, less than falls on 94% of U.S. towns. Since 1901–2000, the year has warmed by 1.6°, most of all in January. Homes need heating from October to April, the months averaging under 50°.
A year in Jordan at a glance
Each month’s typical high and low, and what it brings.
What stands out about Jordan’s climate
Compared with towns across the U.S., with Jordan’s place in Montana beside it.
What a year in Jordan feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
About 118 frost-free days a year
In half of years the last 32° night comes by May 21 and the first by September 18. Frost and day counts come from NOAA’s station at Jordan, MT, 0.4 miles from the town’s center, at about the same height.
The 2023 USDA map puts Jordan’s center in zone 4a: the coldest night of a typical winter, averaged over 1991–2020, reaches about −30°. Plant labels use the zone; frost dates tell you when to plant.
Freezing nights by month
Average nights at or below 32°
90° days by month
Average days at 90° or more
About 25 inches of snow a winter
Snow, measured at Cohagen, MT, falls mostly in January and December. Precipitation (rain plus melted snow) adds up to 14 inches a year; June is the wettest month and February the driest. Rain or snow falls on about 68 days a year.
Rain + melted snow by month
Inches of water
Snowfall by month
Inches of snow
Heating and cooling a home in Jordan
94% of the work is heating, so the furnace matters far more than the air conditioner. Months averaging under 55° run from October through May.
Degree days add up how far each day’s average falls below (heating) or rises above (cooling) 65° over a year. NOAA normals at Jordan, MT.
Living with Jordan’s climate
What the numbers mean for a garden, a free afternoon and a bad-weather day.
118 frost-free days in zone 4a. The last frost comes by May 21 in half of years, so many gardeners wait a week or two past that to set out tomatoes. The first fall frost comes by Sep 18.
Months with highs of 62–84° and lows of 40° or more: June and September. 0.5 miles of trails are waiting.
Parks & trails →Cold waves are 34% of the yearly building losses FEMA expects in Jordan from natural hazards, the largest share. Normals are averages; the hazards page covers the extremes.
Natural hazards →Jordan and similar climates
TownRatings has no climate map of the towns around Jordan yet.
Climates most like Jordan’s, farther away
TownRatings’ own comparison of NOAA 1991–2020 normals, not a NOAA product: places of 5,000+ at least 150 miles away, one per state, closest on January low, July high, precipitation and snow.
| Town | Jan. low | July high | Precip. | Snow |
|---|---|---|---|---|
| Jordan, MT | 6° | 87° | 14" | 25" |
| Rock Springs, WY | 9° | 87° | 9" | 31" |
| Gypsum, CO | 11° | 86° | 14" | 39" |
| Taos, NM | 11° | 84° | 13" | 28" |
| Pierre, SD | 9° | 88° | 19" | 37" |
Temperatures and precipitation come from NOAA’s 5 km grid; snow and day counts from the stations named on this page.
Warmer than it used to be
The last 30 years in Jordan averaged 1.6° warmer than the 1900s. The biggest change is in January (+4.6°).
A bigger shift than in 66% of U.S. towns.
Change by month
The two periods overlap (1991–2000 is in both), which makes the gap a little smaller than it would be between separate periods.
How Jordan compares
Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with Jordan’s place among Montana’s.
Jordan weather by month
Highs, lows and precipitation from NOAA’s grid at Jordan’s center; snow, wet days and snow on the ground from Cohagen, MT. 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | Snow on ground | 30-yr range |
|---|---|---|---|---|---|---|---|
| January | 30° | 6° | 0.4" | 5.2" | 4 | 16 | 4° – 34° |
| February | 34° | 10° | 0.4" | 3.8" | 4 | 11 | −2° – 36° |
| March | 46° | 20° | 0.5" | 3.4" | 5 | 6 | 16° – 43° |
| April | 57° | 30° | 1.2" | 2.1" | 6 | 1 | 39° – 48° |
| May | 67° | 40° | 2.3" | 0.6" | 9 | 0 | 49° – 60° |
| June | 77° | 49° | 2.7" | 0.0" | 9 | 0 | 58° – 68° |
| July | 87° | 55° | 1.6" | 0.0" | 7 | 0 | 61° – 78° |
| August | 86° | 53° | 1.3" | 0.0" | 5 | 0 | 64° – 74° |
| September | 74° | 43° | 1.1" | 0.0" | 5 | 0 | 53° – 65° |
| October | 59° | 31° | 1.1" | 1.2" | 6 | 1 | 37° – 51° |
| November | 44° | 19° | 0.5" | 3.1" | 4 | 6 | 18° – 40° |
| December | 33° | 9° | 0.4" | 5.2" | 3 | 12 | 8° – 30° |
| Year | 58° | 30° | 13.5" | 24.6" | 68 | 53 |
How much a month can swing
A normal is an average. February swings the most: from 1991 to 2020 its average ranged from -2° to 36°. April is the most reliable, staying within 9°.
Where Jordan’s numbers come from
Normals are 30-year averages, not a forecast. How TownRatings reads climate data →
- Temperatures and precipitation: NOAA’s gridded 1991–2020 normals for the 5 km cell at Jordan’s center.
- Snow: Cohagen, MT.
- Frost, freezing nights, 90° and 100° days, heating and cooling: Jordan, MT, 0.4 miles from the town’s center, at about the same height; the nearest station that passes our checks for distance, height and agreement with the grid.
- Growing zone: USDA Plant Hardiness Zone Map, 2023. USDA Agricultural Research Service and PRISM Group, Oregon State University, prism.oregonstate.edu/phzm, accessed 8 Oct 2026.
- Then and now: NOAA’s gridded normals for 1901–2000 at the same cell.
- Storms and extremes: FEMA National Risk Index (expected annual losses to buildings).
Common questions about Jordan’s climate
What is the weather like in Jordan?
A typical July afternoon reaches 87°, a January night drops to 6°, and about 25 inches of snow falls in a normal winter. Colder January nights than 97% of U.S. towns; hotter July afternoons than 61% of U.S. towns.
How cold does it get in Jordan in winter?
January nights average 6°. About 190 nights a year reach 32° or below and 30 reach 0° or below. In the coldest January of the last 30 years the month averaged 4°.
How much snow does Jordan get?
About 25 inches in a normal winter at Cohagen, MT, most of it in January and December, with snow on the ground about 53 days a year.
How hot does it get in Jordan?
July, with a typical high of 87° and a low of 55°. About 37 days a year reach 90° and 5 reach 100° (Jordan, MT).
When is the first and last frost in Jordan?
In half of years the last spring frost (32°) comes by May 21 and the first fall frost by September 18, about 118 frost-free days, at Jordan, MT.
What growing zone is Jordan in?
Zone 4a on the 2023 USDA Plant Hardiness Zone Map: the coldest night of a typical winter reaches about −30°.
What is the best time of year to visit Jordan?
By one simple rule (highs of 62–84° and lows of 40° or more), June and September. The rule is ours, not NOAA’s; the month table has the numbers to judge by.
Is Jordan getting warmer?
Yes: 1991–2020 averaged 1.6° warmer than 1901–2000 on NOAA’s grid. A bigger shift than 66% of U.S. towns.
Neighbors talk weather
Gardens, snow, and the best days of the year in Jordan.
Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000; USDA/PRISM 2023 hardiness zones; FEMA National Risk Index. Today’s forecast: National Weather Service.