Photo: Ken Lund · CC BY-SA 2.0Grace gets about 91 inches of snow a winter, more than 97% of U.S. towns
The warmest part of a July day comes in at 86° on average. It is a dry place: less rain and snow fall here than on 92% of U.S. towns. Warming shows here too: 1.5° more than in 1901–2000, led by March. Radiators earn their keep from October to April, the months that average under 50°.
A year in Grace at a glance
Each month’s typical high and low, and what it brings.
What stands out about Grace’s climate
Compared with towns across the U.S., with Grace’s place in Idaho beside it.
What a year in Grace feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
About 111 frost-free days a year
In half of years the last 32° night comes by May 29 and the first by September 17. Frost and day counts come from NOAA’s station at Grace, ID, 0.9 miles from the town’s center, at about the same height.
The 2023 USDA map puts Grace’s center in zone 5a: the coldest night of a typical winter, averaged over 1991–2020, reaches about −15°. 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 91 inches of snow a winter
Snow, measured at Bern, ID, falls mostly in January. Precipitation (rain plus melted snow) adds up to 16 inches a year; May is the wettest month and July the driest. Rain or snow falls on about 116 days a year.
Rain + melted snow by month
Inches of water
Snowfall by month
Inches of snow
Heating and cooling a home in Grace
97% 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 Grace, ID.
Living with Grace’s climate
What the numbers mean for a garden, a free afternoon and a bad-weather day.
111 frost-free days in zone 5a. The last frost comes by May 29 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 17.
Months with highs of 62–84° and lows of 40° or more: June.
Parks & trails →Of the yearly building losses FEMA expects in Grace from natural hazards, river flooding is the largest share (35%); heat waves, cold waves, winter storms and ice storms together are 13%. Normals are averages; the hazards page covers the extremes.
Natural hazards →Grace and similar climates
TownRatings has no climate map of the towns around Grace yet.
Climates most like Grace’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 |
|---|---|---|---|---|
| Grace, ID | 11° | 86° | 16" | 91" |
| Belgrade, MT | 13° | 85° | 14" | 91" |
| Durango, CO | 12° | 86° | 18" | 64" |
| Flagstaff, AZ | 16° | 84° | 18" | 90" |
| Cheyenne, WY | 16° | 85° | 15" | 65" |
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 Grace averaged 1.5° warmer than the 1900s. The biggest change is in March (+3.5°).
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 Grace compares
Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with Grace’s place among Idaho’s.
Grace weather by month
Highs, lows and precipitation from NOAA’s grid at Grace’s center; snow, wet days and snow on the ground from Bern, ID. 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | Snow on ground | 30-yr range |
|---|---|---|---|---|---|---|---|
| January | 32° | 11° | 1.4" | 23.3" | 12 | 31 | 15° – 29° |
| February | 35° | 14° | 1.2" | 19.0" | 11 | 27 | 19° – 32° |
| March | 45° | 23° | 1.4" | 9.2" | 11 | 25 | 28° – 40° |
| April | 55° | 29° | 1.5" | 4.9" | 12 | 5 | 36° – 48° |
| May | 65° | 37° | 2.3" | 1.3" | 12 | 0 | 44° – 57° |
| June | 75° | 43° | 1.3" | 0.1" | 8 | 0 | 53° – 65° |
| July | 86° | 49° | 0.8" | 0.0" | 5 | 0 | 57° – 73° |
| August | 85° | 47° | 1.0" | 0.0" | 6 | 0 | 60° – 69° |
| September | 74° | 39° | 1.5" | 0.1" | 7 | 0 | 53° – 61° |
| October | 59° | 30° | 1.4" | 2.9" | 9 | 1 | 35° – 50° |
| November | 44° | 21° | 1.1" | 9.2" | 10 | 8 | 24° – 40° |
| December | 32° | 13° | 1.3" | 20.6" | 13 | 25 | 18° – 28° |
| Year | 57° | 29° | 16.0" | 90.6" | 116 | 122 |
How much a month can swing
A normal is an average. November swings the most: from 1991 to 2020 its average ranged from 24° to 40°. September is the most reliable, staying within 8°.
Where Grace’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 Grace’s center.
- Snow: Bern, ID.
- Frost, freezing nights, 90° and 100° days, heating and cooling: Grace, ID, 0.9 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 Grace’s climate
What is the weather like in Grace?
A typical July afternoon reaches 86°, a January night drops to 11°, and about 91 inches of snow falls in a normal winter. Colder January nights than 92% of U.S. towns; hotter July afternoons than 55% of U.S. towns.
How cold does it get in Grace in winter?
January nights average 11°. About 200 nights a year reach 32° or below and 19 reach 0° or below. In the coldest January of the last 30 years the month averaged 15°.
How much snow does Grace get?
About 91 inches in a normal winter at Bern, ID, most of it in January, with snow on the ground about 122 days a year.
How hot does it get in Grace?
July, with a typical high of 86° and a low of 49°. About 25 days a year reach 90° (Grace, ID).
When is the first and last frost in Grace?
In half of years the last spring frost (32°) comes by May 29 and the first fall frost by September 17, about 111 frost-free days, at Grace, ID.
What growing zone is Grace in?
Zone 5a on the 2023 USDA Plant Hardiness Zone Map: the coldest night of a typical winter reaches about −15°.
What is the best time of year to visit Grace?
By one simple rule (highs of 62–84° and lows of 40° or more), June. The rule is ours, not NOAA’s; the month table has the numbers to judge by.
Is Grace 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 Grace.
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.