Photo: BigDaveMT · CC BY 3.0Hardly any U.S. towns see harsher January nights than Wibaux
Sunny July days climb to about 85°. Seasons differ by 79°, from the coldest nights to the warmest afternoons. By precipitation alone, it ranks drier than 92% of U.S. towns. Comfortable outdoor weather, highs of 73–84°, belongs to June, August and September.
A year in Wibaux at a glance
Each month’s typical high and low, and what it brings.
What stands out about Wibaux’s climate
Compared with towns across the U.S., with Wibaux’s place in Montana beside it.
What a year in Wibaux feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
About 112 frost-free days a year
In half of years the last 32° night comes by May 27 and the first by September 16. Frost and day counts come from NOAA’s station at Wibaux 2 E, MT, 1.6 miles from the town’s center, at about the same height.
The 2023 USDA map puts Wibaux’s center in zone 4a: the coldest night of a typical winter, averaged over 1991–2020, reaches about −27°. 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 38 inches of snow a winter
Snow, measured at Wibaux 2 E, MT, falls mostly in February. Precipitation (rain plus melted snow) adds up to 16 inches a year; June is the wettest month and January the driest. Rain or snow falls on about 73 days a year.
Rain + melted snow by month
Inches of water
Snowfall by month
Inches of snow
Heating and cooling a home in Wibaux
96% 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 Wibaux 2 E, MT.
Living with Wibaux’s climate
What the numbers mean for a garden, a free afternoon and a bad-weather day.
112 frost-free days in zone 4a. The last frost comes by May 27 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 16.
Months with highs of 62–84° and lows of 40° or more: June, August and September. 0.5 miles of trails are waiting.
Parks & trails →Cold waves are 83% of the yearly building losses FEMA expects in Wibaux from natural hazards, the largest share. Normals are averages; the hazards page covers the extremes.
Natural hazards →Wibaux and similar climates
TownRatings has no climate map of the towns around Wibaux yet.
Climates most like Wibaux’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 |
|---|---|---|---|---|
| Wibaux, MT | 6° | 85° | 16" | 38" |
| Mandan, ND | 3° | 84° | 18" | 51" |
| Aberdeen, SD | 3° | 84° | 22" | 43" |
| Gypsum, CO | 11° | 86° | 14" | 39" |
| Taos, NM | 11° | 84° | 13" | 28" |
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 Wibaux averaged 0.9° warmer than the 1900s. The biggest change is in January (+3.7°).
A smaller shift than in 82% 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 Wibaux compares
Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with Wibaux’s place among Montana’s.
Wibaux weather by month
Highs, lows and precipitation from NOAA’s grid at Wibaux’s center; snow, wet days and snow on the ground from Wibaux 2 E, MT. 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | 30-yr range |
|---|---|---|---|---|---|---|
| January | 27° | 6° | 0.3" | 6.4" | 4 | 6° – 30° |
| February | 31° | 9° | 0.4" | 7.9" | 5 | −2° – 32° |
| March | 43° | 19° | 0.6" | 4.0" | 5 | 17° – 43° |
| April | 55° | 29° | 1.5" | 4.7" | 7 | 36° – 48° |
| May | 66° | 40° | 2.7" | 1.3" | 9 | 47° – 58° |
| June | 76° | 50° | 2.8" | 0.0" | 10 | 58° – 68° |
| July | 85° | 55° | 2.3" | 0.0" | 7 | 60° – 76° |
| August | 84° | 53° | 1.6" | 0.0" | 5 | 63° – 74° |
| September | 73° | 43° | 1.7" | 0.1" | 6 | 52° – 64° |
| October | 56° | 31° | 1.2" | 2.3" | 6 | 35° – 49° |
| November | 41° | 19° | 0.5" | 4.4" | 4 | 18° – 40° |
| December | 30° | 9° | 0.4" | 6.9" | 5 | 8° – 28° |
| Year | 56° | 30° | 15.9" | 38.0" | 73 |
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 32°. June is the most reliable, staying within 10°.
Where Wibaux’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 Wibaux’s center.
- Snow: Wibaux 2 E, MT (NOAA station in town).
- Frost, freezing nights, 90° and 100° days, heating and cooling: Wibaux 2 E, MT, 1.6 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 Wibaux’s climate
What is the weather like in Wibaux?
A typical July afternoon reaches 85°, a January night drops to 6°, and about 38 inches of snow falls in a normal winter. Colder January nights than 98% of U.S. towns; cooler July afternoons than 55% of U.S. towns.
How cold does it get in Wibaux in winter?
January nights average 6°. About 194 nights a year reach 32° or below and 34 reach 0° or below. In the coldest January of the last 30 years the month averaged 6°.
How much snow does Wibaux get?
About 38 inches in a normal winter at Wibaux 2 E, MT, most of it in February.
How hot does it get in Wibaux?
July, with a typical high of 85° and a low of 55°. About 23 days a year reach 90° and 2 reach 100° (Wibaux 2 E, MT).
When is the first and last frost in Wibaux?
In half of years the last spring frost (32°) comes by May 27 and the first fall frost by September 16, about 112 frost-free days, at Wibaux 2 E, MT.
What growing zone is Wibaux in?
Zone 4a on the 2023 USDA Plant Hardiness Zone Map: the coldest night of a typical winter reaches about −27°.
What is the best time of year to visit Wibaux?
By one simple rule (highs of 62–84° and lows of 40° or more), June, August and September. The rule is ours, not NOAA’s; the month table has the numbers to judge by.
Is Wibaux getting warmer?
Yes: 1991–2020 averaged 0.9° warmer than 1901–2000 on NOAA’s grid. A smaller shift than 82% of U.S. towns.
Neighbors talk weather
Gardens, snow, and the best days of the year in Wibaux.
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.