Photo: Shadybradyj · CC BY-SA 3.0Hinsdale has some of the coldest winter nights among U.S. towns
Expect July afternoons of about 85°. Precipitation is light here, less than falls on 94% of U.S. towns. January has warmed most since 1901–2000, part of a 1.5° rise. Garden planting can start around May 15; autumn frost returns near September 23.
A year in Hinsdale at a glance
Each month’s typical high and low, and what it brings.
What stands out about Hinsdale’s climate
Compared with towns across the U.S., with Hinsdale’s place in Montana beside it.
What a year in Hinsdale feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
About 130 frost-free days a year
In half of years the last 32° night comes by May 15 and the first by September 23. Frost and day counts come from NOAA’s station at Saco 1 Nnw, MT, 13 miles from the town’s center, at about the same height.
The 2023 USDA map puts Hinsdale’s center in zone 3b: 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 14 inches of rain a year
June is the wettest month and February the driest.
Rain + melted snow by month
Inches of water
Heating and cooling a home in Hinsdale
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 Saco 1 Nnw, MT.
Living with Hinsdale’s climate
What the numbers mean for a garden, a free afternoon and a bad-weather day.
130 frost-free days in zone 3b. The last frost comes by May 15 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 23.
Months with highs of 62–84° and lows of 40° or more: May, June and September. 4.3 miles of trails are waiting.
Parks & trails →Cold waves are 40% of the yearly building losses FEMA expects in Hinsdale from natural hazards, the largest share. Normals are averages; the hazards page covers the extremes.
Natural hazards →Hinsdale and similar climates
TownRatings has no climate map of the towns around Hinsdale yet.
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 Hinsdale averaged 1.5° warmer than the 1900s. The biggest change is in January (+4.4°).
A bigger shift than in 58% 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 Hinsdale compares
Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with Hinsdale’s place among Montana’s.
Hinsdale weather by month
Highs, lows and precipitation from NOAA’s grid at Hinsdale’s center. 1991–2020 normals.
| Month | High | Low | Rain + melt | 30-yr range |
|---|---|---|---|---|
| January | 24° | 3° | 0.5" | 1° – 28° |
| February | 30° | 7° | 0.4" | −4° – 32° |
| March | 43° | 19° | 0.5" | 13° – 41° |
| April | 58° | 31° | 1.1" | 38° – 49° |
| May | 68° | 41° | 2.4" | 50° – 61° |
| June | 77° | 50° | 3.2" | 59° – 67° |
| July | 85° | 56° | 1.8" | 62° – 78° |
| August | 84° | 54° | 1.3" | 64° – 75° |
| September | 73° | 44° | 1.3" | 53° – 65° |
| October | 57° | 31° | 1.0" | 35° – 51° |
| November | 40° | 18° | 0.5" | 17° – 40° |
| December | 28° | 8° | 0.4" | 3° – 29° |
| Year | 55° | 30° | 14.3" |
How much a month can swing
A normal is an average. February swings the most: from 1991 to 2020 its average ranged from -4° to 32°. June is the most reliable, staying within 8°.
Where Hinsdale’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 Hinsdale’s center.
- Frost, freezing nights, 90° and 100° days, heating and cooling: Saco 1 Nnw, MT, 13 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 Hinsdale’s climate
What is the weather like in Hinsdale?
A typical July afternoon reaches 85°, a January night drops to 3°. Colder January nights than all but 127 U.S. towns; hotter July afternoons than 51% of U.S. towns.
How cold does it get in Hinsdale in winter?
January nights average 3°. About 197 nights a year reach 32° or below and 41 reach 0° or below. In the coldest January of the last 30 years the month averaged 1°.
How hot does it get in Hinsdale?
July, with a typical high of 85° and a low of 56°. About 19 days a year reach 90° (Saco 1 Nnw, MT).
When is the first and last frost in Hinsdale?
In half of years the last spring frost (32°) comes by May 15 and the first fall frost by September 23, about 130 frost-free days, at Saco 1 Nnw, MT.
What growing zone is Hinsdale in?
Zone 3b 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 Hinsdale?
By one simple rule (highs of 62–84° and lows of 40° or more), May, June and September. The rule is ours, not NOAA’s; the month table has the numbers to judge by.
Is Hinsdale getting warmer?
Yes: 1991–2020 averaged 1.5° warmer than 1901–2000 on NOAA’s grid. A bigger shift than 58% of U.S. towns.
Neighbors talk weather
Gardens, snow, and the best days of the year in Hinsdale.
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.